1992-02-28 11:23:25 +01:00
|
|
|
|
/* Search an insn for pseudo regs that must be in hard regs and are not.
|
2000-02-26 15:26:24 +01:00
|
|
|
|
Copyright (C) 1987, 1988, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
|
2002-01-10 01:56:56 +01:00
|
|
|
|
1999, 2000, 2001, 2002 Free Software Foundation, Inc.
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
Makefile.in, [...]: replace "GNU CC" with "GCC".
* Makefile.in, alias.c, basic-block.h, bb-reorder.c, bitmap.c,
bitmap.h, builtin-types.def, builtins.c, builtins.def,
c-aux-info.c, c-common.c, c-common.def, c-common.h,
c-convert.c, c-decl.c, c-dump.c, c-dump.h, c-errors.c,
c-format.c, c-lang.c, c-lex.c, c-lex.h, c-parse.in,
c-pragma.c, c-pragma.h, c-semantics.c, c-tree.h, c-typeck.c,
caller-save.c, calls.c, collect2.c, collect2.h, combine.c,
conditions.h, config.gcc, configure.frag, configure.in,
conflict.c, convert.c, convert.h, cppspec.c, crtstuff.c,
cse.c, cselib.c, cselib.h, dbxout.c, dbxout.h, defaults.h,
dependence.c, df.c, df.h, diagnostic.c, diagnostic.h,
doloop.c, dominance.c, dwarf.h, dwarf2.h, dwarf2asm.c,
dwarf2asm.h, dwarf2out.c, dwarf2out.h, dwarfout.c,
emit-rtl.c, errors.c, errors.h, except.c, except.h,
exgettext, explow.c, expmed.c, expr.c, expr.h, final.c,
fixproto, flags.h, flow.c, fold-const.c, fp-test.c,
function.c, function.h, gbl-ctors.h, gcc.c, gcc.h, gcc.hlp,
gccspec.c, gcov-io.h, gcse.c, genattr.c, genattrtab.c,
gencheck.c, gencodes.c, genconfig.c, genemit.c,
genextract.c, genflags.c, gengenrtl.c, genmultilib,
genopinit.c, genoutput.c, genpeep.c, genrecog.c,
gensupport.c, gensupport.h, ggc-callbacks.c, ggc-common.c,
ggc-none.c, ggc-page.c, ggc-simple.c, ggc.h, global.c,
graph.c, graph.h, gthr-aix.h, gthr-dce.h, gthr-posix.h,
gthr-rtems.h, gthr-single.h, gthr-solaris.h, gthr-vxworks.h,
gthr-win32.h, gthr.h, haifa-sched.c, halfpic.c, halfpic.h,
hard-reg-set.h, hwint.h, ifcvt.c, input.h, insn-addr.h,
integrate.c, integrate.h, jump.c, lcm.c, libgcc2.c,
libgcc2.h, lists.c, local-alloc.c, loop.c, loop.h,
machmode.def, machmode.h, main.c, mbchar.c, mbchar.h,
mips-tdump.c, mips-tfile.c, mklibgcc.in, mkmap-flat.awk,
mkmap-symver.awk, optabs.c, output.h, params.c, params.def,
params.h, predict.c, predict.def, predict.h, prefix.c,
prefix.h, print-rtl.c, print-tree.c, profile.c, protoize.c,
read-rtl.c, real.c, real.h, recog.c, recog.h, reg-stack.c,
regclass.c, regmove.c, regrename.c, regs.h, reload.c,
reload.h, reload1.c, reorg.c, resource.c, resource.h, rtl.c,
rtl.def, rtl.h, rtlanal.c, sbitmap.c, sbitmap.h,
sched-deps.c, sched-ebb.c, sched-int.h, sched-rgn.c,
sched-vis.c, sdbout.c, sdbout.h, sibcall.c, simplify-rtx.c,
ssa-ccp.c, ssa-dce.c, ssa.c, ssa.h, stmt.c, stor-layout.c,
stringpool.c, system.h, timevar.c, timevar.def, timevar.h,
tlink.c, toplev.c, toplev.h, tree.c, tree.def, tree.h,
tsystem.h, unroll.c, unwind-dw2-fde.c, unwind-dw2-fde.h,
unwind-dw2.c, unwind-pe.h, unwind-sjlj.c, unwind.h,
unwind.inc, varasm.c, varray.c, varray.h, xcoffout.c,
xcoffout.h: replace "GNU CC" with "GCC".
From-SVN: r45105
2001-08-22 16:35:51 +02:00
|
|
|
|
This file is part of GCC.
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
Makefile.in, [...]: replace "GNU CC" with "GCC".
* Makefile.in, alias.c, basic-block.h, bb-reorder.c, bitmap.c,
bitmap.h, builtin-types.def, builtins.c, builtins.def,
c-aux-info.c, c-common.c, c-common.def, c-common.h,
c-convert.c, c-decl.c, c-dump.c, c-dump.h, c-errors.c,
c-format.c, c-lang.c, c-lex.c, c-lex.h, c-parse.in,
c-pragma.c, c-pragma.h, c-semantics.c, c-tree.h, c-typeck.c,
caller-save.c, calls.c, collect2.c, collect2.h, combine.c,
conditions.h, config.gcc, configure.frag, configure.in,
conflict.c, convert.c, convert.h, cppspec.c, crtstuff.c,
cse.c, cselib.c, cselib.h, dbxout.c, dbxout.h, defaults.h,
dependence.c, df.c, df.h, diagnostic.c, diagnostic.h,
doloop.c, dominance.c, dwarf.h, dwarf2.h, dwarf2asm.c,
dwarf2asm.h, dwarf2out.c, dwarf2out.h, dwarfout.c,
emit-rtl.c, errors.c, errors.h, except.c, except.h,
exgettext, explow.c, expmed.c, expr.c, expr.h, final.c,
fixproto, flags.h, flow.c, fold-const.c, fp-test.c,
function.c, function.h, gbl-ctors.h, gcc.c, gcc.h, gcc.hlp,
gccspec.c, gcov-io.h, gcse.c, genattr.c, genattrtab.c,
gencheck.c, gencodes.c, genconfig.c, genemit.c,
genextract.c, genflags.c, gengenrtl.c, genmultilib,
genopinit.c, genoutput.c, genpeep.c, genrecog.c,
gensupport.c, gensupport.h, ggc-callbacks.c, ggc-common.c,
ggc-none.c, ggc-page.c, ggc-simple.c, ggc.h, global.c,
graph.c, graph.h, gthr-aix.h, gthr-dce.h, gthr-posix.h,
gthr-rtems.h, gthr-single.h, gthr-solaris.h, gthr-vxworks.h,
gthr-win32.h, gthr.h, haifa-sched.c, halfpic.c, halfpic.h,
hard-reg-set.h, hwint.h, ifcvt.c, input.h, insn-addr.h,
integrate.c, integrate.h, jump.c, lcm.c, libgcc2.c,
libgcc2.h, lists.c, local-alloc.c, loop.c, loop.h,
machmode.def, machmode.h, main.c, mbchar.c, mbchar.h,
mips-tdump.c, mips-tfile.c, mklibgcc.in, mkmap-flat.awk,
mkmap-symver.awk, optabs.c, output.h, params.c, params.def,
params.h, predict.c, predict.def, predict.h, prefix.c,
prefix.h, print-rtl.c, print-tree.c, profile.c, protoize.c,
read-rtl.c, real.c, real.h, recog.c, recog.h, reg-stack.c,
regclass.c, regmove.c, regrename.c, regs.h, reload.c,
reload.h, reload1.c, reorg.c, resource.c, resource.h, rtl.c,
rtl.def, rtl.h, rtlanal.c, sbitmap.c, sbitmap.h,
sched-deps.c, sched-ebb.c, sched-int.h, sched-rgn.c,
sched-vis.c, sdbout.c, sdbout.h, sibcall.c, simplify-rtx.c,
ssa-ccp.c, ssa-dce.c, ssa.c, ssa.h, stmt.c, stor-layout.c,
stringpool.c, system.h, timevar.c, timevar.def, timevar.h,
tlink.c, toplev.c, toplev.h, tree.c, tree.def, tree.h,
tsystem.h, unroll.c, unwind-dw2-fde.c, unwind-dw2-fde.h,
unwind-dw2.c, unwind-pe.h, unwind-sjlj.c, unwind.h,
unwind.inc, varasm.c, varray.c, varray.h, xcoffout.c,
xcoffout.h: replace "GNU CC" with "GCC".
From-SVN: r45105
2001-08-22 16:35:51 +02:00
|
|
|
|
GCC is free software; you can redistribute it and/or modify it under
|
|
|
|
|
the terms of the GNU General Public License as published by the Free
|
|
|
|
|
Software Foundation; either version 2, or (at your option) any later
|
|
|
|
|
version.
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
Makefile.in, [...]: replace "GNU CC" with "GCC".
* Makefile.in, alias.c, basic-block.h, bb-reorder.c, bitmap.c,
bitmap.h, builtin-types.def, builtins.c, builtins.def,
c-aux-info.c, c-common.c, c-common.def, c-common.h,
c-convert.c, c-decl.c, c-dump.c, c-dump.h, c-errors.c,
c-format.c, c-lang.c, c-lex.c, c-lex.h, c-parse.in,
c-pragma.c, c-pragma.h, c-semantics.c, c-tree.h, c-typeck.c,
caller-save.c, calls.c, collect2.c, collect2.h, combine.c,
conditions.h, config.gcc, configure.frag, configure.in,
conflict.c, convert.c, convert.h, cppspec.c, crtstuff.c,
cse.c, cselib.c, cselib.h, dbxout.c, dbxout.h, defaults.h,
dependence.c, df.c, df.h, diagnostic.c, diagnostic.h,
doloop.c, dominance.c, dwarf.h, dwarf2.h, dwarf2asm.c,
dwarf2asm.h, dwarf2out.c, dwarf2out.h, dwarfout.c,
emit-rtl.c, errors.c, errors.h, except.c, except.h,
exgettext, explow.c, expmed.c, expr.c, expr.h, final.c,
fixproto, flags.h, flow.c, fold-const.c, fp-test.c,
function.c, function.h, gbl-ctors.h, gcc.c, gcc.h, gcc.hlp,
gccspec.c, gcov-io.h, gcse.c, genattr.c, genattrtab.c,
gencheck.c, gencodes.c, genconfig.c, genemit.c,
genextract.c, genflags.c, gengenrtl.c, genmultilib,
genopinit.c, genoutput.c, genpeep.c, genrecog.c,
gensupport.c, gensupport.h, ggc-callbacks.c, ggc-common.c,
ggc-none.c, ggc-page.c, ggc-simple.c, ggc.h, global.c,
graph.c, graph.h, gthr-aix.h, gthr-dce.h, gthr-posix.h,
gthr-rtems.h, gthr-single.h, gthr-solaris.h, gthr-vxworks.h,
gthr-win32.h, gthr.h, haifa-sched.c, halfpic.c, halfpic.h,
hard-reg-set.h, hwint.h, ifcvt.c, input.h, insn-addr.h,
integrate.c, integrate.h, jump.c, lcm.c, libgcc2.c,
libgcc2.h, lists.c, local-alloc.c, loop.c, loop.h,
machmode.def, machmode.h, main.c, mbchar.c, mbchar.h,
mips-tdump.c, mips-tfile.c, mklibgcc.in, mkmap-flat.awk,
mkmap-symver.awk, optabs.c, output.h, params.c, params.def,
params.h, predict.c, predict.def, predict.h, prefix.c,
prefix.h, print-rtl.c, print-tree.c, profile.c, protoize.c,
read-rtl.c, real.c, real.h, recog.c, recog.h, reg-stack.c,
regclass.c, regmove.c, regrename.c, regs.h, reload.c,
reload.h, reload1.c, reorg.c, resource.c, resource.h, rtl.c,
rtl.def, rtl.h, rtlanal.c, sbitmap.c, sbitmap.h,
sched-deps.c, sched-ebb.c, sched-int.h, sched-rgn.c,
sched-vis.c, sdbout.c, sdbout.h, sibcall.c, simplify-rtx.c,
ssa-ccp.c, ssa-dce.c, ssa.c, ssa.h, stmt.c, stor-layout.c,
stringpool.c, system.h, timevar.c, timevar.def, timevar.h,
tlink.c, toplev.c, toplev.h, tree.c, tree.def, tree.h,
tsystem.h, unroll.c, unwind-dw2-fde.c, unwind-dw2-fde.h,
unwind-dw2.c, unwind-pe.h, unwind-sjlj.c, unwind.h,
unwind.inc, varasm.c, varray.c, varray.h, xcoffout.c,
xcoffout.h: replace "GNU CC" with "GCC".
From-SVN: r45105
2001-08-22 16:35:51 +02:00
|
|
|
|
GCC is distributed in the hope that it will be useful, but WITHOUT ANY
|
|
|
|
|
WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
|
|
|
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
|
|
|
|
for more details.
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
|
|
|
|
You should have received a copy of the GNU General Public License
|
Makefile.in, [...]: replace "GNU CC" with "GCC".
* Makefile.in, alias.c, basic-block.h, bb-reorder.c, bitmap.c,
bitmap.h, builtin-types.def, builtins.c, builtins.def,
c-aux-info.c, c-common.c, c-common.def, c-common.h,
c-convert.c, c-decl.c, c-dump.c, c-dump.h, c-errors.c,
c-format.c, c-lang.c, c-lex.c, c-lex.h, c-parse.in,
c-pragma.c, c-pragma.h, c-semantics.c, c-tree.h, c-typeck.c,
caller-save.c, calls.c, collect2.c, collect2.h, combine.c,
conditions.h, config.gcc, configure.frag, configure.in,
conflict.c, convert.c, convert.h, cppspec.c, crtstuff.c,
cse.c, cselib.c, cselib.h, dbxout.c, dbxout.h, defaults.h,
dependence.c, df.c, df.h, diagnostic.c, diagnostic.h,
doloop.c, dominance.c, dwarf.h, dwarf2.h, dwarf2asm.c,
dwarf2asm.h, dwarf2out.c, dwarf2out.h, dwarfout.c,
emit-rtl.c, errors.c, errors.h, except.c, except.h,
exgettext, explow.c, expmed.c, expr.c, expr.h, final.c,
fixproto, flags.h, flow.c, fold-const.c, fp-test.c,
function.c, function.h, gbl-ctors.h, gcc.c, gcc.h, gcc.hlp,
gccspec.c, gcov-io.h, gcse.c, genattr.c, genattrtab.c,
gencheck.c, gencodes.c, genconfig.c, genemit.c,
genextract.c, genflags.c, gengenrtl.c, genmultilib,
genopinit.c, genoutput.c, genpeep.c, genrecog.c,
gensupport.c, gensupport.h, ggc-callbacks.c, ggc-common.c,
ggc-none.c, ggc-page.c, ggc-simple.c, ggc.h, global.c,
graph.c, graph.h, gthr-aix.h, gthr-dce.h, gthr-posix.h,
gthr-rtems.h, gthr-single.h, gthr-solaris.h, gthr-vxworks.h,
gthr-win32.h, gthr.h, haifa-sched.c, halfpic.c, halfpic.h,
hard-reg-set.h, hwint.h, ifcvt.c, input.h, insn-addr.h,
integrate.c, integrate.h, jump.c, lcm.c, libgcc2.c,
libgcc2.h, lists.c, local-alloc.c, loop.c, loop.h,
machmode.def, machmode.h, main.c, mbchar.c, mbchar.h,
mips-tdump.c, mips-tfile.c, mklibgcc.in, mkmap-flat.awk,
mkmap-symver.awk, optabs.c, output.h, params.c, params.def,
params.h, predict.c, predict.def, predict.h, prefix.c,
prefix.h, print-rtl.c, print-tree.c, profile.c, protoize.c,
read-rtl.c, real.c, real.h, recog.c, recog.h, reg-stack.c,
regclass.c, regmove.c, regrename.c, regs.h, reload.c,
reload.h, reload1.c, reorg.c, resource.c, resource.h, rtl.c,
rtl.def, rtl.h, rtlanal.c, sbitmap.c, sbitmap.h,
sched-deps.c, sched-ebb.c, sched-int.h, sched-rgn.c,
sched-vis.c, sdbout.c, sdbout.h, sibcall.c, simplify-rtx.c,
ssa-ccp.c, ssa-dce.c, ssa.c, ssa.h, stmt.c, stor-layout.c,
stringpool.c, system.h, timevar.c, timevar.def, timevar.h,
tlink.c, toplev.c, toplev.h, tree.c, tree.def, tree.h,
tsystem.h, unroll.c, unwind-dw2-fde.c, unwind-dw2-fde.h,
unwind-dw2.c, unwind-pe.h, unwind-sjlj.c, unwind.h,
unwind.inc, varasm.c, varray.c, varray.h, xcoffout.c,
xcoffout.h: replace "GNU CC" with "GCC".
From-SVN: r45105
2001-08-22 16:35:51 +02:00
|
|
|
|
along with GCC; see the file COPYING. If not, write to the Free
|
|
|
|
|
Software Foundation, 59 Temple Place - Suite 330, Boston, MA
|
|
|
|
|
02111-1307, USA. */
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
|
|
|
|
/* This file contains subroutines used only from the file reload1.c.
|
|
|
|
|
It knows how to scan one insn for operands and values
|
|
|
|
|
that need to be copied into registers to make valid code.
|
|
|
|
|
It also finds other operands and values which are valid
|
|
|
|
|
but for which equivalent values in registers exist and
|
|
|
|
|
ought to be used instead.
|
|
|
|
|
|
|
|
|
|
Before processing the first insn of the function, call `init_reload'.
|
|
|
|
|
|
|
|
|
|
To scan an insn, call `find_reloads'. This does two things:
|
|
|
|
|
1. sets up tables describing which values must be reloaded
|
|
|
|
|
for this insn, and what kind of hard regs they must be reloaded into;
|
|
|
|
|
2. optionally record the locations where those values appear in
|
|
|
|
|
the data, so they can be replaced properly later.
|
|
|
|
|
This is done only if the second arg to `find_reloads' is nonzero.
|
|
|
|
|
|
|
|
|
|
The third arg to `find_reloads' specifies the number of levels
|
|
|
|
|
of indirect addressing supported by the machine. If it is zero,
|
|
|
|
|
indirect addressing is not valid. If it is one, (MEM (REG n))
|
|
|
|
|
is valid even if (REG n) did not get a hard register; if it is two,
|
|
|
|
|
(MEM (MEM (REG n))) is also valid even if (REG n) did not get a
|
|
|
|
|
hard register, and similarly for higher values.
|
|
|
|
|
|
|
|
|
|
Then you must choose the hard regs to reload those pseudo regs into,
|
|
|
|
|
and generate appropriate load insns before this insn and perhaps
|
|
|
|
|
also store insns after this insn. Set up the array `reload_reg_rtx'
|
|
|
|
|
to contain the REG rtx's for the registers you used. In some
|
|
|
|
|
cases `find_reloads' will return a nonzero value in `reload_reg_rtx'
|
|
|
|
|
for certain reloads. Then that tells you which register to use,
|
|
|
|
|
so you do not need to allocate one. But you still do need to add extra
|
|
|
|
|
instructions to copy the value into and out of that register.
|
|
|
|
|
|
|
|
|
|
Finally you must call `subst_reloads' to substitute the reload reg rtx's
|
|
|
|
|
into the locations already recorded.
|
|
|
|
|
|
|
|
|
|
NOTE SIDE EFFECTS:
|
|
|
|
|
|
|
|
|
|
find_reloads can alter the operands of the instruction it is called on.
|
|
|
|
|
|
|
|
|
|
1. Two operands of any sort may be interchanged, if they are in a
|
|
|
|
|
commutative instruction.
|
|
|
|
|
This happens only if find_reloads thinks the instruction will compile
|
|
|
|
|
better that way.
|
|
|
|
|
|
|
|
|
|
2. Pseudo-registers that are equivalent to constants are replaced
|
|
|
|
|
with those constants if they are not in hard registers.
|
|
|
|
|
|
|
|
|
|
1 happens every time find_reloads is called.
|
|
|
|
|
2 happens only when REPLACE is 1, which is only when
|
|
|
|
|
actually doing the reloads, not when just counting them.
|
|
|
|
|
|
|
|
|
|
Using a reload register for several reloads in one insn:
|
|
|
|
|
|
|
|
|
|
When an insn has reloads, it is considered as having three parts:
|
|
|
|
|
the input reloads, the insn itself after reloading, and the output reloads.
|
|
|
|
|
Reloads of values used in memory addresses are often needed for only one part.
|
|
|
|
|
|
|
|
|
|
When this is so, reload_when_needed records which part needs the reload.
|
|
|
|
|
Two reloads for different parts of the insn can share the same reload
|
|
|
|
|
register.
|
|
|
|
|
|
|
|
|
|
When a reload is used for addresses in multiple parts, or when it is
|
|
|
|
|
an ordinary operand, it is classified as RELOAD_OTHER, and cannot share
|
|
|
|
|
a register with any other reload. */
|
|
|
|
|
|
|
|
|
|
#define REG_OK_STRICT
|
|
|
|
|
|
|
|
|
|
#include "config.h"
|
Major cutover to using system.h:
* Makefile.in (alias.o, bitmap.o, c-aux-info.o, c-common.o,
c-decl.o, c-iterate.o, c-lang.o, c-lex.o, c-pragma.o, c-typeck.o,
caller-save.o, calls.o, collect2.o, combine.o, cse.o, dbxout.o,
dwarf2out.o, dwarfout.o, emit-rtl.o, except.o, explow.o, expmed.o,
expr.o, final.o, flow.o, function.o, getpwd.o, global.o,
integrate.o, jump.o, local-alloc.o, loop.o, optabs.o, pexecute.o,
prefix.o, print-rtl.o, print-tree.o, profile.o, real.o, recog.o,
reg-stack.o, regclass.o, regmove.o, reload.o, reload1.o, reorg.o,
rtl.o, rtlanal.o, sdbout.o, stmt.o, stor-layout.o, stupid.o,
tlink.o, toplev.o, tree.o, unroll.o, varasm.o, xcoffout.o): Depend
on system.h.
* alias.c, bitmap.c, c-aux-info.c, c-common.c, c-decl.c,
c-iterate.c, c-lang.c, c-lex.c, c-pragma.c, c-typeck.c,
caller-save.c, calls.c, collect2.c, combine.c, cse.c, dbxout.c,
dwarf2out.c, dwarfout.c, emit-rtl.c, except.c, explow.c, expmed.c,
expr.c, final.c, flow.c, function.c, gcc.c, getpwd.c, global.c,
integrate.c, jump.c, local-alloc.c, loop.c, optabs.c, pexecute.c,
prefix.c, print-rtl.c, print-tree.c, profile.c, real.c, recog.c,
reg-stack.c, regclass.c, regmove.c, reload.c, reload1.c, reorg.c,
rtl.c, rtlanal.c, sched.c, sdbout.c, stmt.c, stor-layout.c,
stupid.c, tlink.c, toplev.c, tree.c, unroll.c, varasm.c,
xcoffout.c: Include system.h. Organize include ordering so
that stdarg/varargs comes before other system headers. Remove
spurious casts of functions assured of a prototype in system.h.
From-SVN: r18726
1998-03-20 15:58:42 +01:00
|
|
|
|
#include "system.h"
|
1992-02-28 11:23:25 +01:00
|
|
|
|
#include "rtl.h"
|
1999-09-20 12:00:03 +02:00
|
|
|
|
#include "tm_p.h"
|
1992-02-28 11:23:25 +01:00
|
|
|
|
#include "insn-config.h"
|
expr.h: Split out optab- and libfunc-related code to...
* expr.h: Split out optab- and libfunc-related code to...
* optabs.h, libfuncs.h: ... these new headers.
* Makefile.in (CONFIG_H, EXPR_H): Take out insn-codes.h.
(OPTABS_H): New.
(various .o rules): Add $(OPTABS_H) and/or libfuncs.h to
dependencies.
* mkconfig.sh: Don't include insn-codes.h from config.h.
* reload.h: Use #ifdef GCC_INSN_CODES_H to decide whether
enum insn_code is available. Move reload_in_optab and
reload_out_optab array declarations to optabs.h.
* regmove.c (gen_add3_insn): Move to optabs.c, export from
there, prototype in expr.h.
* gencodes.c: Cleanup: zap global variables, don't use
printf where puts will do, don't bother defining MAX_INSN_CODE
which nothing uses, let CODE_FOR_nothing get its value implicitly.
* genemit.c, genopinit.c: Include optabs.h in generated file.
* genoutput.c: Include insn-codes.h in generated file.
* builtins.c, caller-save.c, combine.c, doloop.c, explow.c,
expmed.c, expr.c, function.c, ifcvt.c, loop.c, optabs.c, profile.c,
reload1.c, simplify-rtx.c, stmt.c, unroll.c, config/alpha/alpha.c,
config/arm/arm.c, config/c4x/c4x.c, config/clipper/clipper.c,
config/i386/i386.c, config/ia64/ia64.c, config/mn10300/mn10300.c,
config/pj/pj.c, config/sh/sh.c, config/sparc/sparc.c:
Include optabs.h.
* builtins.c, calls.c, dwarf2out.c, except.c, expr.c, function.c,
optabs.c, stmt.c, config/c4x/c4x.c, config/clipper/clipper.c,
config/m88k/m88k.c, config/sparc/sparc.c:
Include libfuncs.h.
* reload.c: Include expr.h and optabs.h before reload.h.
* config/alpha/alpha.c: Include tree.h before reload.h.
* config/pa/pa.c: Include expr.h, optabs.h, libfuncs.h,
and reload.h in that order.
* config/sparc/sparc.c: Include debug.h.
* recog.c: Include insn-codes.h.
cp:
* Make-lang.in (cp/except.o): Add libfuncs.h to dependencies.
* except.c: Include libfuncs.h.
java:
* Make-lang.in (java/decl.o): Update dependencies.
* decl.c: Include libfuncs.h, don't include toplev.h.
From-SVN: r44858
2001-08-13 17:56:51 +02:00
|
|
|
|
#include "expr.h"
|
|
|
|
|
#include "optabs.h"
|
1992-02-28 11:23:25 +01:00
|
|
|
|
#include "recog.h"
|
|
|
|
|
#include "reload.h"
|
|
|
|
|
#include "regs.h"
|
|
|
|
|
#include "hard-reg-set.h"
|
|
|
|
|
#include "flags.h"
|
|
|
|
|
#include "real.h"
|
1995-11-11 14:24:38 +01:00
|
|
|
|
#include "output.h"
|
1999-08-09 16:00:21 +02:00
|
|
|
|
#include "function.h"
|
toplev.h: New file.
Wed May 6 06:35:38 1998 Robert Lipe <robertl@dgii.com>
* toplev.h: New file. Protypes for functions in toplev.c.
* tree.h, rtl.h: Deleted protos for functions in toplev.c.
* c-common.c, c-convert.c, c-decl.c, c-iterate.c, c-lex.c,
c-parse.in, c-parse.y, c-pragma.c, c-typeck.c, calls.c,
convert.c, dwarf2out.c, except.c, expr.c, final.c, fold-const.c,
function.c, hash.c, profile.c, real.c, reg-stack.c, regclass.c,
reload.c, reload1.c, stmt.c, stor-layout.c, tlink.c, tree.c,
varasm.c: include it.
From-SVN: r19564
1998-05-06 06:54:01 +02:00
|
|
|
|
#include "toplev.h"
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
|
|
|
|
#ifndef REGISTER_MOVE_COST
|
2001-01-02 01:59:52 +01:00
|
|
|
|
#define REGISTER_MOVE_COST(m, x, y) 2
|
1992-02-28 11:23:25 +01:00
|
|
|
|
#endif
|
1997-01-14 21:38:34 +01:00
|
|
|
|
|
|
|
|
|
#ifndef REGNO_MODE_OK_FOR_BASE_P
|
|
|
|
|
#define REGNO_MODE_OK_FOR_BASE_P(REGNO, MODE) REGNO_OK_FOR_BASE_P (REGNO)
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
#ifndef REG_MODE_OK_FOR_BASE_P
|
|
|
|
|
#define REG_MODE_OK_FOR_BASE_P(REGNO, MODE) REG_OK_FOR_BASE_P (REGNO)
|
|
|
|
|
#endif
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
1999-09-12 16:54:56 +02:00
|
|
|
|
/* All reloads of the current insn are recorded here. See reload.h for
|
|
|
|
|
comments. */
|
1992-02-28 11:23:25 +01:00
|
|
|
|
int n_reloads;
|
1999-09-12 16:54:56 +02:00
|
|
|
|
struct reload rld[MAX_RELOADS];
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
|
|
|
|
/* All the "earlyclobber" operands of the current insn
|
|
|
|
|
are recorded here. */
|
|
|
|
|
int n_earlyclobbers;
|
|
|
|
|
rtx reload_earlyclobbers[MAX_RECOG_OPERANDS];
|
|
|
|
|
|
1993-03-29 13:27:52 +02:00
|
|
|
|
int reload_n_operands;
|
|
|
|
|
|
1992-02-28 11:23:25 +01:00
|
|
|
|
/* Replacing reloads.
|
|
|
|
|
|
|
|
|
|
If `replace_reloads' is nonzero, then as each reload is recorded
|
|
|
|
|
an entry is made for it in the table `replacements'.
|
|
|
|
|
Then later `subst_reloads' can look through that table and
|
|
|
|
|
perform all the replacements needed. */
|
|
|
|
|
|
|
|
|
|
/* Nonzero means record the places to replace. */
|
|
|
|
|
static int replace_reloads;
|
|
|
|
|
|
|
|
|
|
/* Each replacement is recorded with a structure like this. */
|
|
|
|
|
struct replacement
|
|
|
|
|
{
|
|
|
|
|
rtx *where; /* Location to store in */
|
|
|
|
|
rtx *subreg_loc; /* Location of SUBREG if WHERE is inside
|
|
|
|
|
a SUBREG; 0 otherwise. */
|
|
|
|
|
int what; /* which reload this is for */
|
|
|
|
|
enum machine_mode mode; /* mode it must have */
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
static struct replacement replacements[MAX_RECOG_OPERANDS * ((MAX_REGS_PER_ADDRESS * 2) + 1)];
|
|
|
|
|
|
|
|
|
|
/* Number of replacements currently recorded. */
|
|
|
|
|
static int n_replacements;
|
|
|
|
|
|
1993-03-29 13:27:52 +02:00
|
|
|
|
/* Used to track what is modified by an operand. */
|
|
|
|
|
struct decomposition
|
|
|
|
|
{
|
1996-07-04 00:07:53 +02:00
|
|
|
|
int reg_flag; /* Nonzero if referencing a register. */
|
|
|
|
|
int safe; /* Nonzero if this can't conflict with anything. */
|
|
|
|
|
rtx base; /* Base address for MEM. */
|
|
|
|
|
HOST_WIDE_INT start; /* Starting offset or register number. */
|
1995-05-23 01:11:12 +02:00
|
|
|
|
HOST_WIDE_INT end; /* Ending offset or register number. */
|
1993-03-29 13:27:52 +02:00
|
|
|
|
};
|
|
|
|
|
|
1992-07-17 11:57:24 +02:00
|
|
|
|
#ifdef SECONDARY_MEMORY_NEEDED
|
|
|
|
|
|
|
|
|
|
/* Save MEMs needed to copy from one class of registers to another. One MEM
|
1999-09-01 16:30:35 +02:00
|
|
|
|
is used per mode, but normally only one or two modes are ever used.
|
1992-07-17 11:57:24 +02:00
|
|
|
|
|
1999-09-01 16:30:35 +02:00
|
|
|
|
We keep two versions, before and after register elimination. The one
|
1993-03-29 13:27:52 +02:00
|
|
|
|
after register elimination is record separately for each operand. This
|
|
|
|
|
is done in case the address is not valid to be sure that we separately
|
|
|
|
|
reload each. */
|
1992-07-17 11:57:24 +02:00
|
|
|
|
|
|
|
|
|
static rtx secondary_memlocs[NUM_MACHINE_MODES];
|
1993-03-29 23:39:58 +02:00
|
|
|
|
static rtx secondary_memlocs_elim[NUM_MACHINE_MODES][MAX_RECOG_OPERANDS];
|
1992-07-17 11:57:24 +02:00
|
|
|
|
#endif
|
|
|
|
|
|
1992-02-28 11:23:25 +01:00
|
|
|
|
/* The instruction we are doing reloads for;
|
|
|
|
|
so we can test whether a register dies in it. */
|
|
|
|
|
static rtx this_insn;
|
|
|
|
|
|
|
|
|
|
/* Nonzero if this instruction is a user-specified asm with operands. */
|
|
|
|
|
static int this_insn_is_asm;
|
|
|
|
|
|
|
|
|
|
/* If hard_regs_live_known is nonzero,
|
|
|
|
|
we can tell which hard regs are currently live,
|
|
|
|
|
at least enough to succeed in choosing dummy reloads. */
|
|
|
|
|
static int hard_regs_live_known;
|
|
|
|
|
|
|
|
|
|
/* Indexed by hard reg number,
|
1997-12-07 01:31:01 +01:00
|
|
|
|
element is nonnegative if hard reg has been spilled.
|
1992-02-28 11:23:25 +01:00
|
|
|
|
This vector is passed to `find_reloads' as an argument
|
|
|
|
|
and is not changed here. */
|
|
|
|
|
static short *static_reload_reg_p;
|
|
|
|
|
|
|
|
|
|
/* Set to 1 in subst_reg_equivs if it changes anything. */
|
|
|
|
|
static int subst_reg_equivs_changed;
|
|
|
|
|
|
|
|
|
|
/* On return from push_reload, holds the reload-number for the OUT
|
|
|
|
|
operand, which can be different for that from the input operand. */
|
|
|
|
|
static int output_reloadnum;
|
|
|
|
|
|
1994-02-10 15:04:07 +01:00
|
|
|
|
/* Compare two RTX's. */
|
|
|
|
|
#define MATCHES(x, y) \
|
|
|
|
|
(x == y || (x != 0 && (GET_CODE (x) == REG \
|
|
|
|
|
? GET_CODE (y) == REG && REGNO (x) == REGNO (y) \
|
|
|
|
|
: rtx_equal_p (x, y) && ! side_effects_p (x))))
|
|
|
|
|
|
|
|
|
|
/* Indicates if two reloads purposes are for similar enough things that we
|
|
|
|
|
can merge their reloads. */
|
|
|
|
|
#define MERGABLE_RELOADS(when1, when2, op1, op2) \
|
|
|
|
|
((when1) == RELOAD_OTHER || (when2) == RELOAD_OTHER \
|
|
|
|
|
|| ((when1) == (when2) && (op1) == (op2)) \
|
|
|
|
|
|| ((when1) == RELOAD_FOR_INPUT && (when2) == RELOAD_FOR_INPUT) \
|
|
|
|
|
|| ((when1) == RELOAD_FOR_OPERAND_ADDRESS \
|
|
|
|
|
&& (when2) == RELOAD_FOR_OPERAND_ADDRESS) \
|
|
|
|
|
|| ((when1) == RELOAD_FOR_OTHER_ADDRESS \
|
|
|
|
|
&& (when2) == RELOAD_FOR_OTHER_ADDRESS))
|
|
|
|
|
|
|
|
|
|
/* Nonzero if these two reload purposes produce RELOAD_OTHER when merged. */
|
|
|
|
|
#define MERGE_TO_OTHER(when1, when2, op1, op2) \
|
|
|
|
|
((when1) != (when2) \
|
|
|
|
|
|| ! ((op1) == (op2) \
|
|
|
|
|
|| (when1) == RELOAD_FOR_INPUT \
|
|
|
|
|
|| (when1) == RELOAD_FOR_OPERAND_ADDRESS \
|
|
|
|
|
|| (when1) == RELOAD_FOR_OTHER_ADDRESS))
|
|
|
|
|
|
1997-02-03 19:04:00 +01:00
|
|
|
|
/* If we are going to reload an address, compute the reload type to
|
|
|
|
|
use. */
|
|
|
|
|
#define ADDR_TYPE(type) \
|
|
|
|
|
((type) == RELOAD_FOR_INPUT_ADDRESS \
|
|
|
|
|
? RELOAD_FOR_INPADDR_ADDRESS \
|
|
|
|
|
: ((type) == RELOAD_FOR_OUTPUT_ADDRESS \
|
|
|
|
|
? RELOAD_FOR_OUTADDR_ADDRESS \
|
|
|
|
|
: (type)))
|
|
|
|
|
|
1998-03-12 01:29:17 +01:00
|
|
|
|
#ifdef HAVE_SECONDARY_RELOADS
|
2000-01-17 16:47:29 +01:00
|
|
|
|
static int push_secondary_reload PARAMS ((int, rtx, int, int, enum reg_class,
|
1994-02-10 15:04:07 +01:00
|
|
|
|
enum machine_mode, enum reload_type,
|
|
|
|
|
enum insn_code *));
|
1998-03-12 01:29:17 +01:00
|
|
|
|
#endif
|
2002-05-26 14:01:40 +02:00
|
|
|
|
static enum reg_class find_valid_class PARAMS ((enum machine_mode, int,
|
|
|
|
|
unsigned int));
|
2000-08-21 15:46:47 +02:00
|
|
|
|
static int reload_inner_reg_of_subreg PARAMS ((rtx, enum machine_mode));
|
2000-01-17 16:47:29 +01:00
|
|
|
|
static void push_replacement PARAMS ((rtx *, int, enum machine_mode));
|
|
|
|
|
static void combine_reloads PARAMS ((void));
|
|
|
|
|
static int find_reusable_reload PARAMS ((rtx *, rtx, enum reg_class,
|
1999-02-03 21:11:56 +01:00
|
|
|
|
enum reload_type, int, int));
|
2000-01-17 16:47:29 +01:00
|
|
|
|
static rtx find_dummy_reload PARAMS ((rtx, rtx, rtx *, rtx *,
|
1993-09-14 18:39:28 +02:00
|
|
|
|
enum machine_mode, enum machine_mode,
|
1997-03-25 20:27:59 +01:00
|
|
|
|
enum reg_class, int, int));
|
* Rework fields used to describe positions of bitfields and
modify sizes to be unsigned and use HOST_WIDE_INT.
* alias.c (reg_known_value_size): Now unsigned.
* c-typeck.c (build_unary_op, case ADDR_EXPR): Use byte_position.
(really_start_incremental_init): Use bitsize_zero_node.
(push_init_level, pop_init_level, output_init_element): Likewise.
Use bitsize_unit_node and bitsize_one_node.
(output_pending_init_elements, process_init_element): Likewise.
* combine.c (combine_max_regno, reg_sign_bit_copies): Now unsigned.
(make_extraction): Position and length HOST_WIDE_INT and unsigned
HOST_WIDE_INT, respectively.
(get_pos_from_mask): Passed in value is unsigned HOST_WIDE_INT.
(num_sign_bit_copies): Returns unsigned.
BITWIDTH now unsigned; rework arithmetic.
Remove recursive call from arg to MAX.
(combine_instructions, init_reg_last_arrays): NREGS now unsigned.
(setup_incoming_promotions, can_combine_p, try_combine, simplify_set):
REGNO now unsigned.
(set_nonzero_bit_and_sign_copies): NUM now unsigned.
(find_split_point, expand_compound_operation, make_extraction): LEN
now unsigned HOST_WIDE_INT, POS now HOST_WIDE_INT.
(make_field_assignment): Likewise.
(combine_simplify_rtx): Add cast.
(expand_compound_operation): MODEWIDTH now unsigned; rework arithmetic.
(force_to_mode): WIDTH now unsigned; add cast.
(if_then_else_cond): SIZE now unsigned.
(nonzero_bits): MODE_WIDTH, RESULT_WIDTH, and WIDTH now unsigned.
(extended_count): Now returns unsigned.
(simplify_shift_const): COUNT unsigned; arg is now INPUT_COUNT.
Add SIGNED_COUNT variable; MODE_WORDS and FIRST_COUNT now unsigned.
(simplify_comparison): MODE_WIDTH now unsigned.
(update_table_tick): REGNO and ENDREGNO now unsigned; new var R.
(mark_used_regs_combine): Likewise; rework arithmetic.
(record_value_for_reg): REGNO, ENDREGNO, and I now unsigned.
(record_dead_and_set_regs, reg_dead_at_p, distribute_notes): Likewise.
(record_promoted_value): REGNO now unsigned.
(get_last_value_validate): REGNO, ENDREGNO, and J now unsigned.
(get_last_value): REGNO now unsigned.
(use_crosses_set_p): REGNO and ENDREGNO now unsigned.
(reg_dead_regno, reg_dead_endregno): Now unsigned.
(remove_death): Arg REGNO now unsigned.
(move_deaths): REGNO, DEADREGNO, DEADEND, OUREND, and I now unsigned.
(reg_bitfield_target_p): REGNO, REGNO, ENDREGNO, and ENDTREGNO
now unsigned.
* convert.c (convert_to_integer): INPREC and OUTPREC now unsigned.
* cse.c (struct qty_table_elem): FIRST_REG and LAST_REG now unsigned.
(struct cse_reg_info): REGNO now unsigned.
(cached_regno): Now unsigned.
(REGNO_QTY_VALID_P): Add cast.
(make_new_qty, make_regs_eqv, delete_reg_eqiv): Regno args unsigned.
(remove_invalid_regs): Likewise.
(remove_invalid_subreg_refs): Likewise; arg WORD also unsigned
as are variables END and I.
(get_cse_reg_info, insert): Likewise.
(mention_regs, invalidate_for_call): REGNO, ENDREGNO, and I unsigned.
(canon_hash): Likewise.
(insert_regs, lookup_for_remove): REGNO now unsigned.
(invalidate): REGNO, ENDREGNO, TREGNO, and TENDREGNO now unsigned.
New variable RN.
* dbxout.c (dbxout_parms, dbxout_reg_parms): Don't check for REGNO < 0.
* dwarf2out.c (dwarf2ou_frame_debug_expr): Remove cast.
* emit-rtl.c (subreg_realpart_p): Add cast.
(operand_subword): Arg I is now unsigned as is var PARTWORDS.
(operand_subword_force): Arg I is now unsigned.
* except.c (eh_regs): Variable I is now unsigned.
* explow.c (hard_function_value): BYTES is unsigned HOST_WIDE_INT.
* expmed.c (store_fixed_bit_field): Position is HOST_WIDE_INT;
length is unsigned HOST_WIDE_INT; likewise for internal variables.
(store_split_bit_field, extract_fixed_bit_field): Likewise.
(extract_split_bit_field, store_bit_field, extract_bit_field):
Likewise.
* expr.c (store_constructor_fields, store_constructor, store_field):
Positions are HOST_WIDE_INT and lengths are unsigned HOST_WIDE_INT.
(expand_assignment, expand_expr, expand_expr_unaligned): Likewise.
(do_jump): Likewise.
(move_by_pieces, move_by_pieces_ninsns, clear_by_pieces):
MAX_SIZE is now unsigned.
(emit_group_load): BYTEPOS is HOST_WIDE_INT; BYTELEN is unsigned.
(emit_group_store): Likewise.
(emit_move_insn): I now unsigned.
(store_constructor): Use host_integerp, tree_low_cst, and
bitsize_unit_node.
(get_inner_reference): Return bitpos and bitsize as HOST_WIDE_INT.
Rework all calculations to use trees and new fields.
* expr.h (promoted_input_arg): Regno now unsigned.
(store_bit_field, extract_bit_field): Adjust types of pos and size.
(mark_seen_cases): Arg is HOST_WIDE_INT.
* flow.c (verify_wide_reg_1): REGNO now unsigned.
* fold-const.c (decode_field_reference): Size and pos HOST_WIDE_INT;
precisions and alignments are unsigned.
(optimize_bit_field_compare, fold_truthop): Likewise.
(int_const_binop): Adjust threshold for size_int_type_wide call.
(fold_convert): Likewise.
(size_int_type_wide): Make table larger and fix thinko that only
had half of table used.
(all_ones_mask_p, fold): Precisions are unsigned.
* function.c (put_reg_info_stack): REGNO is unsigned.
(instantiate_decl): Size is HOST_WIDE_INT.
(instantiate_virtual_regs): I is unsigned.
(assign_parms): REGNO, REGNOI, and REGNOR are unsigned.
(promoted_input_arg): REGNO is unsigned.
* function.h (struct function): x_max_parm_reg is now unsigned.
* gcse.c (max_gcse_regno): Now unsigned.
(struct null_pointer_info): min_reg and max_reg now unsigned.
(lookup_set, next_set): REGNO arg now unsigned.
(compute_hash_table): REGNO and I now unsigned.
(handle_avail_expr): regnum_for_replacing now unsigned.
(cprop_insn): REGNO now unsigned.
(delete_null_pointer_checks_1): BLOCK_REG now pointer to unsigned.
* ggc-common.c (ggc_mark_tree_children, case FIELD_DECL): New case.
* global.c (set_preference): SRC_REGNO, DEST_REGNO, and I now unsigned.
* hard-reg-set.h (reg_class_size): Now unsigned.
* integrate.c (mark_stores): LAST_REG and I now unsigned; new UREGNO.
* jump.c (mark_modified_reg): I now unsigned; add cast.
(rtx_equal_for_thread_p): Add cast.
* loop.c (max_reg_before_loop): Now unsigned.
(struct_movable): REGNO now unsigned.
(try_copy_prop): REGNO arg unsigned.
(regs_match_p): XN and YN now unsigned.
(consec_sets_invariant_p, maybe_eliminate_biv): REGNO now unsigned.
(strength_reduce): Likewise; NREGS also unsigned.
(first_increment_giv, last_increment_giv unsigned): Now unsigned.
* loop.h (struct iv_class): REGNO now unsigned.
(max_reg_before_loop, first_increment_giv, last_increment_giv):
Now unsigned.
* machmode.h (mode_size, mode_unit_size): Now unsigned.
(mode_for_size, smallest_mode_for_size): Pass size as unsigned.
* optabs.c (expand_binop): I and NWORDS now unsigned.
(expand_unop): I now unsigned.
* print-tree.c (print_node): Don't print DECL_FIELD_BITPOS, but do
print DECL_FIELD_OFFSET and DECL_FIELD_BIT_OFFSET.
* real.c (significand_size): Now returns unsigned.
* real.h (significand_size): Likewise.
* regclass.c (reg_class_size): Now unsigned.
(choose_hard_reg_mode): Both operands now unsigned.
(record_reg_classes): REGNO and NR now unsigned.
(reg_scan): NREGS now unsigned.
(reg_scan_update): old_max_regno now unsigned.
(reg_scan_mark_refs): Arg MIN_REGNO and var REGNO now unsigned.
* reload.c (find_valid_class): BEST_SIZE now unsigned.
(find_dummy_reload): REGNO, NWORDS, and I now unsigned.
(hard_reg_set_here_p): Args BEG_REGNO and END_REGNO now unsigned.
Likewise for variable R.
(refers_to_regno_for_reload_p): Args REGNO and END_REGNO now unsigned,
as are variables INNER_REGNO and INNER_ENDREGNO; add new variable R.
(find_equiv_reg): Add casts.
(regno_clobbered_p): Arg REGNO now unsigned.
* reload.h (struct reload): NREGS now unsigned.
(refers_to_regno_for_reload_p): Regno args are unsigned.
(regno_clobbered_p): Likewise.
* reload1.c (reg_max_ref_width, spill_stack_slot_width): Now unsigned.
(compute_use_by_pseudos): REGNO now unsigned.
(find_reg): I and J now unsigned, new variable K, and change loop
variables accordingly; THIS_NREGS now unsigned.
(alter_reg): INHERENT_SIZE and TOTAL_SIZE now unsigned.
(spill_hard_reg): REGNO arg now unsigned; add casts.
(forget_old_reloads_1): REGNO, NR, and I now unsigned.
(mark_reload_reg_in_use): Arg REGNO and vars NREGS and I now unsigned.
(clear_reload_reg_in_use): Arg REGNO and vars NREGS, START_REGNO,
END_REGNO, CONFLICT_START, and CONFLICT_END now unsigned.
(reload_reg_free_p, reload_reg_reaches_end_p): Arg REGNO now unsigned.
(choose_reload_regs): MAX_GROUP_SIZE now unsigned.
(emit_reload_insns): REGNO now unsigned.
(reload_cse_move2add): Add cast.
(move2add_note_store): REGNO and I now unsigned; new variable ENDREGNO
and rework loop.
* resource.c (mark_referenced_resources, mark_set_resources): New
variable R; REGNO and LAST_REGNO now unsigned.
(mark_target_live_regs): J and REGNO now unsigned.
* rtl.c (mode_size, mode_unit_size): Now unsigned.
* rtl.h (union rtunion_def): New field rtuint.
(XCUINT): New macro.
(ADDRESSOF_REGNO, REGNO, SUBREG_WORD): New XCUINT.
(operand_subword, operand_subword_force): Word number is unsigned.
(choose_hard_reg_mode): Operands are unsigned.
(refers_to-regno_p, dead_or_set_regno_p): Regno arg is unsigned.
(find_regno_note, find_regno_fusage, replace_regs): Likewise.
(regno_use_in, combine_instructions, remove_death): Likewise.
(reg_scan, reg_scan_update): Likewise.
(extended_count): Return is unsigned.
* rtlanal.c (refers_to_regno_p): Args REGNO and ENDREGNO and vars I,
INNER_REGNO, and INNER_ENDREGNO now unsigned; new variable X_REGNO.
(reg_overlap_mentioned_p): REGNO and ENDREGNO now unsigned.
(reg_set_last_first_regno, reg_set_last_last_regno): Now unsigned.
(reg_reg_last_1): FIRS and LAST now unsigned.
(dead_or_set_p): REGNO, LAST_REGNO, and I now unsigned.
(dead_or_set_regno_p): Arg TEST_REGNO and vars REGNO and ENDREGNO
now unsigned.
(find_regno_note, regno_use_in): Arg REGNO now unsigned.
(find_regno_fusage): Likewise; also var REGNOTE now unsigned.
(find_reg_fusage): Variables REGNO, END_REGNO, and I now unsigned.
(replace_regs): Arg NREGS now unsigned.
* sdbout.c (sdbout_parms, sdbout_reg_parms): Don't check REGNO < 0.
* simplify-rtx.c (simplify_unary_operation): WIDTH now unsigned.
(simplify_binary_operation): Likewise.
(cselib_invalidate_regno): Arg REGNO and variables ENDREGNO, I, and
THIS_LAST now unsigned.
(cselib_record_set): Add cast.
* ssa.c (ssa_max_reg_num): Now unsigned.
(rename_block): REGNO now unsigned.
* stmt.c (expand_return): Bit positions unsigned HOST_WIDE_INT;
sizes now unsigned.
(all_cases_count): Just return -1 not -2.
COUNT, MINVAL, and LASTVAL now HOST_WIDE_INT.
Rework tests to use trees whenever possible.
Use host_integerp and tree_low_cst.
(mark_seen_cases): COUNT arg now HOST_WIDE_INT;
Likewise variable NEXT_NODE_OFFSET; XLO now unsigned.
(check_for_full_enumeration_handing): BYTES_NEEDED, I to HOST_WIDE_INT.
* stor-layout.c (mode_for_size): SIZE arg now unsigned.
(smallest_mode_for_size): Likewise.
(layout_decl): Simplify handing of a specified DECL_SIZE_UNIT.
KNOWN_ALIGN is now an alignment, so simplify code.
Don't turn off DECL_BIT_FIELD if field is BLKmode, but not type.
(start_record_layout): Renamed from new_record_layout_info.
Update to new fields.
(debug_rli, normalize_rli, rli_size_unit_so_far, rli_size_so_far):
New functions.
(place_union_field): Renamed from layout_union_field.
Update to use new fields in rli.
(place_field): Renamed from layout_field.
Major rewrite to use new fields in rli; pass alignment to layout_decl.
(finalize_record_size): Rework to use new fields in rli and handle
union.
(compute_record_mode): Rework to simplify and to use new DECL fields.
(finalize_type_size): Make rounding more consistent.
(finish_union_layout): Deleted.
(layout_type, case VOID_TYPE): Don't set TYPE_SIZE_UNIT either.
(layout_type, case RECORD_TYPE): Call new function names.
(initialize_sizetypes): Set TYPE_IS_SIZETYPE.
(set_sizetype): Set TYPE_IS_SIZETYPE earlier.
(get_best_mode): UNIT is now unsigned; remove casts.
* tree.c (bit_position): Compute from new fields.
(byte_position, int_byte_position): New functions.
(print_type_hash_statistics): Cast to remove warning.
(build_range_type): Use host_integerp and tree_low_cst to try to hash.
(build_index_type): Likewise; make subtype of sizetype.
(build_index_2_type): Pass sizetype to build_range_type.
(build_common_tree_nodes): Use size_int and bitsize_int to
initialize nodes; add bitsize_{zero,one,unit}_node.
* tree.h (DECL_FIELD_CONTEXT): Use FIELD_DECL_CHECK.
(DECL_BIT_FIELD_TYPE, DECL_QUALIFIER, DECL_FCONTEXT): Likewise.
(DECL_PACKED, DECL_BIT_FIELD): Likewise.
(DECL_FIELD_BITPOS): Deleted.
(DECL_FIELD_OFFSET, DECL_FIELD_BIT_OFFSET): New fields.
(DECL_RESULT, DECL_SAVED_INSNS): Use FUNCTION_DECL_CHECK.
(DECL_FRAME_SIZE, DECL_FUNCTION_CODE, DECL_NO_STATIC_CHAIN): Likewise.
(DECL_INLINE, DECL_BUILT_IN_NONANSI, DECL_IS_MALLOC): Likewise.
(DECL_BUILT_IN_CLASS, DECL_STATIC_CONSTRUCTOR): Likewise.
(DECL_STATIC_DESTRUCTOR, DECL_NO_CHECK_MEMORY_USAGE): Likewise.
(DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT, DECL_NO_LIMIT_STACK) Likewise.
(DECL_ORIGINAL_TYPE, TYPE_DECL_SUPPRESS_DEBUG): Use TYPE_DECL_CHECK.
(DECL_ARG_TYPE_AS_WRITEN, DECL_ARG_TYPE): Use PARM_DECL_CHECK.
(DECL_INCOMING_RTL, DECL_TRANSPARENT_UNION): Likewise.
(DECL_ALIGN): Adjust to new field in union.
(DECL_OFFSET_ALIGN): New field.
(DECL_ERROR_ISSUED, DECL_TOO_LATE): Use LABEL_DECL_CHECK.
(DECL_IN_TEXT_SECTION): Use VAR_DECL_CHECK.
(union tree_decl): Add struct for both aligns.
(enum tree_index): Add TI_BITSIZE_{ZERO,ONE,UNIT}.
(bitsize_zero_node, bitsize_one_node, bitsize_unit_node): Added.
(struct record_layout_info): Rework fields to have offset
alignment and byte and bit position.
(start_record_layout, place_field): Renamed from old names.
(rli_size_so_far, rli_size_unit_so_far, normalize_rli): New decls.
(byte_position, int_byte_position): Likewise.
(get_inner_reference): Change types of position and length.
* unroll.c (unroll_loop): New variable R; use for some loops.
MAX_LOCAL_REGNUM and MAXREGNUM now unsigned.
(calculate_giv_inc): Arg REGNO now unsigned.
(copy_loop_body): REGNO and SRC_REGNO now unsigned.
* varasm.c (assemble_variable): Clean up handling of size using
host_integerp and tree_low_cst.
(decode_addr_const): Use byte, not bit, position.
(output_constructor): bitpos and offsets are HOST_WIDE_INT;
use tree_low_cst and int_bit_position.
* objc/objc-act.c (build_ivar_list_initializer): Use byte_position.
* ch/actions.c (check_missing_cases): BYTES_NEEDED is HOST_WIDE_INT.
* ch/typeck.c (expand_constant_to_buffer): Use int_byte_position.
(extract_constant_from_buffer): Likewise.
* cp/class.c (build_vbase_pointer_fields): layout_field now
place_field.
(get_vfield_offset): Use byte_position.
(set_rtti_entry): Set OFFSET to ssizetype zero.
(get_binfo_offset_as_int): Deleted.
(dfs_record_base_offsets): Use tree_low_cst.
(dfs_search_base_offsets): Likewise.
(layout_nonempty_base_or_field): Reflect changes in RLI format
and call byte_position.
(layout_empty_base): Convert offset to ssizetype.
(build_base_field): use rli_size_unit_so_far.
(dfs_propagate_binfo_offsets): Do computation in proper type.
(layout_virtual_bases): Pass ssizetype to propagate_binfo_offsets.
(layout_class_type): Reflect changes in RLI names and fields.
(finish_struct_1): Set DECL_FIELD_OFFSET.
* cp/dump.c (dequeue_and_dump): Call bit_position.
* cp/expr.c (cplus_expand_constant): Use byte_position.
* cp/rtti.c (expand_class_desc): Use bitsize_one_node.
* cp/typeck.c (build_component_addr): Use byte_position and don't
special case for zero offset.
* f/com.c (ffecom_tree_canonize_ptr_): Use bitsize_zero_node.
(ffecom_tree_canonize_ref_): Likewise.
* java/class.c (make_field_value): Use byte_position.
* java/expr.c (JAVA_ARRAY_LENGTH_OFFSET): Use byte_position.
(java_array_data_offset): Likewise.
* java/java-tree.h (MAYBE_CREATE_TYPE_TYPE_LANG_SPECIFIC): Add case to
bzero call.
From-SVN: r32742
2000-03-25 19:34:13 +01:00
|
|
|
|
static int hard_reg_set_here_p PARAMS ((unsigned int, unsigned int, rtx));
|
2000-01-17 16:47:29 +01:00
|
|
|
|
static struct decomposition decompose PARAMS ((rtx));
|
|
|
|
|
static int immune_p PARAMS ((rtx, rtx, struct decomposition));
|
|
|
|
|
static int alternative_allows_memconst PARAMS ((const char *, int));
|
* Rework fields used to describe positions of bitfields and
modify sizes to be unsigned and use HOST_WIDE_INT.
* alias.c (reg_known_value_size): Now unsigned.
* c-typeck.c (build_unary_op, case ADDR_EXPR): Use byte_position.
(really_start_incremental_init): Use bitsize_zero_node.
(push_init_level, pop_init_level, output_init_element): Likewise.
Use bitsize_unit_node and bitsize_one_node.
(output_pending_init_elements, process_init_element): Likewise.
* combine.c (combine_max_regno, reg_sign_bit_copies): Now unsigned.
(make_extraction): Position and length HOST_WIDE_INT and unsigned
HOST_WIDE_INT, respectively.
(get_pos_from_mask): Passed in value is unsigned HOST_WIDE_INT.
(num_sign_bit_copies): Returns unsigned.
BITWIDTH now unsigned; rework arithmetic.
Remove recursive call from arg to MAX.
(combine_instructions, init_reg_last_arrays): NREGS now unsigned.
(setup_incoming_promotions, can_combine_p, try_combine, simplify_set):
REGNO now unsigned.
(set_nonzero_bit_and_sign_copies): NUM now unsigned.
(find_split_point, expand_compound_operation, make_extraction): LEN
now unsigned HOST_WIDE_INT, POS now HOST_WIDE_INT.
(make_field_assignment): Likewise.
(combine_simplify_rtx): Add cast.
(expand_compound_operation): MODEWIDTH now unsigned; rework arithmetic.
(force_to_mode): WIDTH now unsigned; add cast.
(if_then_else_cond): SIZE now unsigned.
(nonzero_bits): MODE_WIDTH, RESULT_WIDTH, and WIDTH now unsigned.
(extended_count): Now returns unsigned.
(simplify_shift_const): COUNT unsigned; arg is now INPUT_COUNT.
Add SIGNED_COUNT variable; MODE_WORDS and FIRST_COUNT now unsigned.
(simplify_comparison): MODE_WIDTH now unsigned.
(update_table_tick): REGNO and ENDREGNO now unsigned; new var R.
(mark_used_regs_combine): Likewise; rework arithmetic.
(record_value_for_reg): REGNO, ENDREGNO, and I now unsigned.
(record_dead_and_set_regs, reg_dead_at_p, distribute_notes): Likewise.
(record_promoted_value): REGNO now unsigned.
(get_last_value_validate): REGNO, ENDREGNO, and J now unsigned.
(get_last_value): REGNO now unsigned.
(use_crosses_set_p): REGNO and ENDREGNO now unsigned.
(reg_dead_regno, reg_dead_endregno): Now unsigned.
(remove_death): Arg REGNO now unsigned.
(move_deaths): REGNO, DEADREGNO, DEADEND, OUREND, and I now unsigned.
(reg_bitfield_target_p): REGNO, REGNO, ENDREGNO, and ENDTREGNO
now unsigned.
* convert.c (convert_to_integer): INPREC and OUTPREC now unsigned.
* cse.c (struct qty_table_elem): FIRST_REG and LAST_REG now unsigned.
(struct cse_reg_info): REGNO now unsigned.
(cached_regno): Now unsigned.
(REGNO_QTY_VALID_P): Add cast.
(make_new_qty, make_regs_eqv, delete_reg_eqiv): Regno args unsigned.
(remove_invalid_regs): Likewise.
(remove_invalid_subreg_refs): Likewise; arg WORD also unsigned
as are variables END and I.
(get_cse_reg_info, insert): Likewise.
(mention_regs, invalidate_for_call): REGNO, ENDREGNO, and I unsigned.
(canon_hash): Likewise.
(insert_regs, lookup_for_remove): REGNO now unsigned.
(invalidate): REGNO, ENDREGNO, TREGNO, and TENDREGNO now unsigned.
New variable RN.
* dbxout.c (dbxout_parms, dbxout_reg_parms): Don't check for REGNO < 0.
* dwarf2out.c (dwarf2ou_frame_debug_expr): Remove cast.
* emit-rtl.c (subreg_realpart_p): Add cast.
(operand_subword): Arg I is now unsigned as is var PARTWORDS.
(operand_subword_force): Arg I is now unsigned.
* except.c (eh_regs): Variable I is now unsigned.
* explow.c (hard_function_value): BYTES is unsigned HOST_WIDE_INT.
* expmed.c (store_fixed_bit_field): Position is HOST_WIDE_INT;
length is unsigned HOST_WIDE_INT; likewise for internal variables.
(store_split_bit_field, extract_fixed_bit_field): Likewise.
(extract_split_bit_field, store_bit_field, extract_bit_field):
Likewise.
* expr.c (store_constructor_fields, store_constructor, store_field):
Positions are HOST_WIDE_INT and lengths are unsigned HOST_WIDE_INT.
(expand_assignment, expand_expr, expand_expr_unaligned): Likewise.
(do_jump): Likewise.
(move_by_pieces, move_by_pieces_ninsns, clear_by_pieces):
MAX_SIZE is now unsigned.
(emit_group_load): BYTEPOS is HOST_WIDE_INT; BYTELEN is unsigned.
(emit_group_store): Likewise.
(emit_move_insn): I now unsigned.
(store_constructor): Use host_integerp, tree_low_cst, and
bitsize_unit_node.
(get_inner_reference): Return bitpos and bitsize as HOST_WIDE_INT.
Rework all calculations to use trees and new fields.
* expr.h (promoted_input_arg): Regno now unsigned.
(store_bit_field, extract_bit_field): Adjust types of pos and size.
(mark_seen_cases): Arg is HOST_WIDE_INT.
* flow.c (verify_wide_reg_1): REGNO now unsigned.
* fold-const.c (decode_field_reference): Size and pos HOST_WIDE_INT;
precisions and alignments are unsigned.
(optimize_bit_field_compare, fold_truthop): Likewise.
(int_const_binop): Adjust threshold for size_int_type_wide call.
(fold_convert): Likewise.
(size_int_type_wide): Make table larger and fix thinko that only
had half of table used.
(all_ones_mask_p, fold): Precisions are unsigned.
* function.c (put_reg_info_stack): REGNO is unsigned.
(instantiate_decl): Size is HOST_WIDE_INT.
(instantiate_virtual_regs): I is unsigned.
(assign_parms): REGNO, REGNOI, and REGNOR are unsigned.
(promoted_input_arg): REGNO is unsigned.
* function.h (struct function): x_max_parm_reg is now unsigned.
* gcse.c (max_gcse_regno): Now unsigned.
(struct null_pointer_info): min_reg and max_reg now unsigned.
(lookup_set, next_set): REGNO arg now unsigned.
(compute_hash_table): REGNO and I now unsigned.
(handle_avail_expr): regnum_for_replacing now unsigned.
(cprop_insn): REGNO now unsigned.
(delete_null_pointer_checks_1): BLOCK_REG now pointer to unsigned.
* ggc-common.c (ggc_mark_tree_children, case FIELD_DECL): New case.
* global.c (set_preference): SRC_REGNO, DEST_REGNO, and I now unsigned.
* hard-reg-set.h (reg_class_size): Now unsigned.
* integrate.c (mark_stores): LAST_REG and I now unsigned; new UREGNO.
* jump.c (mark_modified_reg): I now unsigned; add cast.
(rtx_equal_for_thread_p): Add cast.
* loop.c (max_reg_before_loop): Now unsigned.
(struct_movable): REGNO now unsigned.
(try_copy_prop): REGNO arg unsigned.
(regs_match_p): XN and YN now unsigned.
(consec_sets_invariant_p, maybe_eliminate_biv): REGNO now unsigned.
(strength_reduce): Likewise; NREGS also unsigned.
(first_increment_giv, last_increment_giv unsigned): Now unsigned.
* loop.h (struct iv_class): REGNO now unsigned.
(max_reg_before_loop, first_increment_giv, last_increment_giv):
Now unsigned.
* machmode.h (mode_size, mode_unit_size): Now unsigned.
(mode_for_size, smallest_mode_for_size): Pass size as unsigned.
* optabs.c (expand_binop): I and NWORDS now unsigned.
(expand_unop): I now unsigned.
* print-tree.c (print_node): Don't print DECL_FIELD_BITPOS, but do
print DECL_FIELD_OFFSET and DECL_FIELD_BIT_OFFSET.
* real.c (significand_size): Now returns unsigned.
* real.h (significand_size): Likewise.
* regclass.c (reg_class_size): Now unsigned.
(choose_hard_reg_mode): Both operands now unsigned.
(record_reg_classes): REGNO and NR now unsigned.
(reg_scan): NREGS now unsigned.
(reg_scan_update): old_max_regno now unsigned.
(reg_scan_mark_refs): Arg MIN_REGNO and var REGNO now unsigned.
* reload.c (find_valid_class): BEST_SIZE now unsigned.
(find_dummy_reload): REGNO, NWORDS, and I now unsigned.
(hard_reg_set_here_p): Args BEG_REGNO and END_REGNO now unsigned.
Likewise for variable R.
(refers_to_regno_for_reload_p): Args REGNO and END_REGNO now unsigned,
as are variables INNER_REGNO and INNER_ENDREGNO; add new variable R.
(find_equiv_reg): Add casts.
(regno_clobbered_p): Arg REGNO now unsigned.
* reload.h (struct reload): NREGS now unsigned.
(refers_to_regno_for_reload_p): Regno args are unsigned.
(regno_clobbered_p): Likewise.
* reload1.c (reg_max_ref_width, spill_stack_slot_width): Now unsigned.
(compute_use_by_pseudos): REGNO now unsigned.
(find_reg): I and J now unsigned, new variable K, and change loop
variables accordingly; THIS_NREGS now unsigned.
(alter_reg): INHERENT_SIZE and TOTAL_SIZE now unsigned.
(spill_hard_reg): REGNO arg now unsigned; add casts.
(forget_old_reloads_1): REGNO, NR, and I now unsigned.
(mark_reload_reg_in_use): Arg REGNO and vars NREGS and I now unsigned.
(clear_reload_reg_in_use): Arg REGNO and vars NREGS, START_REGNO,
END_REGNO, CONFLICT_START, and CONFLICT_END now unsigned.
(reload_reg_free_p, reload_reg_reaches_end_p): Arg REGNO now unsigned.
(choose_reload_regs): MAX_GROUP_SIZE now unsigned.
(emit_reload_insns): REGNO now unsigned.
(reload_cse_move2add): Add cast.
(move2add_note_store): REGNO and I now unsigned; new variable ENDREGNO
and rework loop.
* resource.c (mark_referenced_resources, mark_set_resources): New
variable R; REGNO and LAST_REGNO now unsigned.
(mark_target_live_regs): J and REGNO now unsigned.
* rtl.c (mode_size, mode_unit_size): Now unsigned.
* rtl.h (union rtunion_def): New field rtuint.
(XCUINT): New macro.
(ADDRESSOF_REGNO, REGNO, SUBREG_WORD): New XCUINT.
(operand_subword, operand_subword_force): Word number is unsigned.
(choose_hard_reg_mode): Operands are unsigned.
(refers_to-regno_p, dead_or_set_regno_p): Regno arg is unsigned.
(find_regno_note, find_regno_fusage, replace_regs): Likewise.
(regno_use_in, combine_instructions, remove_death): Likewise.
(reg_scan, reg_scan_update): Likewise.
(extended_count): Return is unsigned.
* rtlanal.c (refers_to_regno_p): Args REGNO and ENDREGNO and vars I,
INNER_REGNO, and INNER_ENDREGNO now unsigned; new variable X_REGNO.
(reg_overlap_mentioned_p): REGNO and ENDREGNO now unsigned.
(reg_set_last_first_regno, reg_set_last_last_regno): Now unsigned.
(reg_reg_last_1): FIRS and LAST now unsigned.
(dead_or_set_p): REGNO, LAST_REGNO, and I now unsigned.
(dead_or_set_regno_p): Arg TEST_REGNO and vars REGNO and ENDREGNO
now unsigned.
(find_regno_note, regno_use_in): Arg REGNO now unsigned.
(find_regno_fusage): Likewise; also var REGNOTE now unsigned.
(find_reg_fusage): Variables REGNO, END_REGNO, and I now unsigned.
(replace_regs): Arg NREGS now unsigned.
* sdbout.c (sdbout_parms, sdbout_reg_parms): Don't check REGNO < 0.
* simplify-rtx.c (simplify_unary_operation): WIDTH now unsigned.
(simplify_binary_operation): Likewise.
(cselib_invalidate_regno): Arg REGNO and variables ENDREGNO, I, and
THIS_LAST now unsigned.
(cselib_record_set): Add cast.
* ssa.c (ssa_max_reg_num): Now unsigned.
(rename_block): REGNO now unsigned.
* stmt.c (expand_return): Bit positions unsigned HOST_WIDE_INT;
sizes now unsigned.
(all_cases_count): Just return -1 not -2.
COUNT, MINVAL, and LASTVAL now HOST_WIDE_INT.
Rework tests to use trees whenever possible.
Use host_integerp and tree_low_cst.
(mark_seen_cases): COUNT arg now HOST_WIDE_INT;
Likewise variable NEXT_NODE_OFFSET; XLO now unsigned.
(check_for_full_enumeration_handing): BYTES_NEEDED, I to HOST_WIDE_INT.
* stor-layout.c (mode_for_size): SIZE arg now unsigned.
(smallest_mode_for_size): Likewise.
(layout_decl): Simplify handing of a specified DECL_SIZE_UNIT.
KNOWN_ALIGN is now an alignment, so simplify code.
Don't turn off DECL_BIT_FIELD if field is BLKmode, but not type.
(start_record_layout): Renamed from new_record_layout_info.
Update to new fields.
(debug_rli, normalize_rli, rli_size_unit_so_far, rli_size_so_far):
New functions.
(place_union_field): Renamed from layout_union_field.
Update to use new fields in rli.
(place_field): Renamed from layout_field.
Major rewrite to use new fields in rli; pass alignment to layout_decl.
(finalize_record_size): Rework to use new fields in rli and handle
union.
(compute_record_mode): Rework to simplify and to use new DECL fields.
(finalize_type_size): Make rounding more consistent.
(finish_union_layout): Deleted.
(layout_type, case VOID_TYPE): Don't set TYPE_SIZE_UNIT either.
(layout_type, case RECORD_TYPE): Call new function names.
(initialize_sizetypes): Set TYPE_IS_SIZETYPE.
(set_sizetype): Set TYPE_IS_SIZETYPE earlier.
(get_best_mode): UNIT is now unsigned; remove casts.
* tree.c (bit_position): Compute from new fields.
(byte_position, int_byte_position): New functions.
(print_type_hash_statistics): Cast to remove warning.
(build_range_type): Use host_integerp and tree_low_cst to try to hash.
(build_index_type): Likewise; make subtype of sizetype.
(build_index_2_type): Pass sizetype to build_range_type.
(build_common_tree_nodes): Use size_int and bitsize_int to
initialize nodes; add bitsize_{zero,one,unit}_node.
* tree.h (DECL_FIELD_CONTEXT): Use FIELD_DECL_CHECK.
(DECL_BIT_FIELD_TYPE, DECL_QUALIFIER, DECL_FCONTEXT): Likewise.
(DECL_PACKED, DECL_BIT_FIELD): Likewise.
(DECL_FIELD_BITPOS): Deleted.
(DECL_FIELD_OFFSET, DECL_FIELD_BIT_OFFSET): New fields.
(DECL_RESULT, DECL_SAVED_INSNS): Use FUNCTION_DECL_CHECK.
(DECL_FRAME_SIZE, DECL_FUNCTION_CODE, DECL_NO_STATIC_CHAIN): Likewise.
(DECL_INLINE, DECL_BUILT_IN_NONANSI, DECL_IS_MALLOC): Likewise.
(DECL_BUILT_IN_CLASS, DECL_STATIC_CONSTRUCTOR): Likewise.
(DECL_STATIC_DESTRUCTOR, DECL_NO_CHECK_MEMORY_USAGE): Likewise.
(DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT, DECL_NO_LIMIT_STACK) Likewise.
(DECL_ORIGINAL_TYPE, TYPE_DECL_SUPPRESS_DEBUG): Use TYPE_DECL_CHECK.
(DECL_ARG_TYPE_AS_WRITEN, DECL_ARG_TYPE): Use PARM_DECL_CHECK.
(DECL_INCOMING_RTL, DECL_TRANSPARENT_UNION): Likewise.
(DECL_ALIGN): Adjust to new field in union.
(DECL_OFFSET_ALIGN): New field.
(DECL_ERROR_ISSUED, DECL_TOO_LATE): Use LABEL_DECL_CHECK.
(DECL_IN_TEXT_SECTION): Use VAR_DECL_CHECK.
(union tree_decl): Add struct for both aligns.
(enum tree_index): Add TI_BITSIZE_{ZERO,ONE,UNIT}.
(bitsize_zero_node, bitsize_one_node, bitsize_unit_node): Added.
(struct record_layout_info): Rework fields to have offset
alignment and byte and bit position.
(start_record_layout, place_field): Renamed from old names.
(rli_size_so_far, rli_size_unit_so_far, normalize_rli): New decls.
(byte_position, int_byte_position): Likewise.
(get_inner_reference): Change types of position and length.
* unroll.c (unroll_loop): New variable R; use for some loops.
MAX_LOCAL_REGNUM and MAXREGNUM now unsigned.
(calculate_giv_inc): Arg REGNO now unsigned.
(copy_loop_body): REGNO and SRC_REGNO now unsigned.
* varasm.c (assemble_variable): Clean up handling of size using
host_integerp and tree_low_cst.
(decode_addr_const): Use byte, not bit, position.
(output_constructor): bitpos and offsets are HOST_WIDE_INT;
use tree_low_cst and int_bit_position.
* objc/objc-act.c (build_ivar_list_initializer): Use byte_position.
* ch/actions.c (check_missing_cases): BYTES_NEEDED is HOST_WIDE_INT.
* ch/typeck.c (expand_constant_to_buffer): Use int_byte_position.
(extract_constant_from_buffer): Likewise.
* cp/class.c (build_vbase_pointer_fields): layout_field now
place_field.
(get_vfield_offset): Use byte_position.
(set_rtti_entry): Set OFFSET to ssizetype zero.
(get_binfo_offset_as_int): Deleted.
(dfs_record_base_offsets): Use tree_low_cst.
(dfs_search_base_offsets): Likewise.
(layout_nonempty_base_or_field): Reflect changes in RLI format
and call byte_position.
(layout_empty_base): Convert offset to ssizetype.
(build_base_field): use rli_size_unit_so_far.
(dfs_propagate_binfo_offsets): Do computation in proper type.
(layout_virtual_bases): Pass ssizetype to propagate_binfo_offsets.
(layout_class_type): Reflect changes in RLI names and fields.
(finish_struct_1): Set DECL_FIELD_OFFSET.
* cp/dump.c (dequeue_and_dump): Call bit_position.
* cp/expr.c (cplus_expand_constant): Use byte_position.
* cp/rtti.c (expand_class_desc): Use bitsize_one_node.
* cp/typeck.c (build_component_addr): Use byte_position and don't
special case for zero offset.
* f/com.c (ffecom_tree_canonize_ptr_): Use bitsize_zero_node.
(ffecom_tree_canonize_ref_): Likewise.
* java/class.c (make_field_value): Use byte_position.
* java/expr.c (JAVA_ARRAY_LENGTH_OFFSET): Use byte_position.
(java_array_data_offset): Likewise.
* java/java-tree.h (MAYBE_CREATE_TYPE_TYPE_LANG_SPECIFIC): Add case to
bzero call.
From-SVN: r32742
2000-03-25 19:34:13 +01:00
|
|
|
|
static rtx find_reloads_toplev PARAMS ((rtx, int, enum reload_type, int,
|
2000-07-23 08:17:41 +02:00
|
|
|
|
int, rtx, int *));
|
2000-01-17 16:47:29 +01:00
|
|
|
|
static rtx make_memloc PARAMS ((rtx, int));
|
|
|
|
|
static int find_reloads_address PARAMS ((enum machine_mode, rtx *, rtx, rtx *,
|
1997-03-15 13:28:39 +01:00
|
|
|
|
int, enum reload_type, int, rtx));
|
2000-01-17 16:47:29 +01:00
|
|
|
|
static rtx subst_reg_equivs PARAMS ((rtx, rtx));
|
|
|
|
|
static rtx subst_indexed_address PARAMS ((rtx));
|
2000-12-22 02:25:23 +01:00
|
|
|
|
static void update_auto_inc_notes PARAMS ((rtx, int, int));
|
2000-01-17 16:47:29 +01:00
|
|
|
|
static int find_reloads_address_1 PARAMS ((enum machine_mode, rtx, int, rtx *,
|
1997-03-15 13:28:39 +01:00
|
|
|
|
int, enum reload_type,int, rtx));
|
2000-01-17 16:47:29 +01:00
|
|
|
|
static void find_reloads_address_part PARAMS ((rtx, rtx *, enum reg_class,
|
1993-03-29 13:27:52 +02:00
|
|
|
|
enum machine_mode, int,
|
|
|
|
|
enum reload_type, int));
|
2002-03-11 00:51:08 +01:00
|
|
|
|
static rtx find_reloads_subreg_address PARAMS ((rtx, int, int,
|
|
|
|
|
enum reload_type, int, rtx));
|
|
|
|
|
static void copy_replacements_1 PARAMS ((rtx *, rtx *, int));
|
2000-01-17 16:47:29 +01:00
|
|
|
|
static int find_inc_amount PARAMS ((rtx, rtx));
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
|
|
|
|
#ifdef HAVE_SECONDARY_RELOADS
|
|
|
|
|
|
|
|
|
|
/* Determine if any secondary reloads are needed for loading (if IN_P is
|
|
|
|
|
non-zero) or storing (if IN_P is zero) X to or from a reload register of
|
1994-02-10 15:04:07 +01:00
|
|
|
|
register class RELOAD_CLASS in mode RELOAD_MODE. If secondary reloads
|
|
|
|
|
are needed, push them.
|
|
|
|
|
|
|
|
|
|
Return the reload number of the secondary reload we made, or -1 if
|
|
|
|
|
we didn't need one. *PICODE is set to the insn_code to use if we do
|
|
|
|
|
need a secondary reload. */
|
|
|
|
|
|
|
|
|
|
static int
|
|
|
|
|
push_secondary_reload (in_p, x, opnum, optional, reload_class, reload_mode,
|
|
|
|
|
type, picode)
|
|
|
|
|
int in_p;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
rtx x;
|
1994-02-10 15:04:07 +01:00
|
|
|
|
int opnum;
|
|
|
|
|
int optional;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
enum reg_class reload_class;
|
|
|
|
|
enum machine_mode reload_mode;
|
1994-02-10 15:04:07 +01:00
|
|
|
|
enum reload_type type;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
enum insn_code *picode;
|
|
|
|
|
{
|
|
|
|
|
enum reg_class class = NO_REGS;
|
|
|
|
|
enum machine_mode mode = reload_mode;
|
|
|
|
|
enum insn_code icode = CODE_FOR_nothing;
|
|
|
|
|
enum reg_class t_class = NO_REGS;
|
|
|
|
|
enum machine_mode t_mode = VOIDmode;
|
|
|
|
|
enum insn_code t_icode = CODE_FOR_nothing;
|
1994-05-04 23:12:27 +02:00
|
|
|
|
enum reload_type secondary_type;
|
1994-02-10 15:04:07 +01:00
|
|
|
|
int s_reload, t_reload = -1;
|
|
|
|
|
|
1997-02-03 19:04:00 +01:00
|
|
|
|
if (type == RELOAD_FOR_INPUT_ADDRESS
|
|
|
|
|
|| type == RELOAD_FOR_OUTPUT_ADDRESS
|
|
|
|
|
|| type == RELOAD_FOR_INPADDR_ADDRESS
|
|
|
|
|
|| type == RELOAD_FOR_OUTADDR_ADDRESS)
|
1994-05-04 23:12:27 +02:00
|
|
|
|
secondary_type = type;
|
|
|
|
|
else
|
|
|
|
|
secondary_type = in_p ? RELOAD_FOR_INPUT_ADDRESS : RELOAD_FOR_OUTPUT_ADDRESS;
|
|
|
|
|
|
1994-02-10 15:04:07 +01:00
|
|
|
|
*picode = CODE_FOR_nothing;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
1995-08-26 12:56:12 +02:00
|
|
|
|
/* If X is a paradoxical SUBREG, use the inner value to determine both the
|
|
|
|
|
mode and object being reloaded. */
|
|
|
|
|
if (GET_CODE (x) == SUBREG
|
|
|
|
|
&& (GET_MODE_SIZE (GET_MODE (x))
|
|
|
|
|
> GET_MODE_SIZE (GET_MODE (SUBREG_REG (x)))))
|
|
|
|
|
{
|
|
|
|
|
x = SUBREG_REG (x);
|
|
|
|
|
reload_mode = GET_MODE (x);
|
|
|
|
|
}
|
|
|
|
|
|
1992-03-14 06:07:15 +01:00
|
|
|
|
/* If X is a pseudo-register that has an equivalent MEM (actually, if it
|
|
|
|
|
is still a pseudo-register by now, it *must* have an equivalent MEM
|
|
|
|
|
but we don't want to assume that), use that equivalent when seeing if
|
|
|
|
|
a secondary reload is needed since whether or not a reload is needed
|
|
|
|
|
might be sensitive to the form of the MEM. */
|
|
|
|
|
|
|
|
|
|
if (GET_CODE (x) == REG && REGNO (x) >= FIRST_PSEUDO_REGISTER
|
|
|
|
|
&& reg_equiv_mem[REGNO (x)] != 0)
|
|
|
|
|
x = reg_equiv_mem[REGNO (x)];
|
|
|
|
|
|
1992-02-28 11:23:25 +01:00
|
|
|
|
#ifdef SECONDARY_INPUT_RELOAD_CLASS
|
|
|
|
|
if (in_p)
|
|
|
|
|
class = SECONDARY_INPUT_RELOAD_CLASS (reload_class, reload_mode, x);
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
#ifdef SECONDARY_OUTPUT_RELOAD_CLASS
|
|
|
|
|
if (! in_p)
|
|
|
|
|
class = SECONDARY_OUTPUT_RELOAD_CLASS (reload_class, reload_mode, x);
|
|
|
|
|
#endif
|
|
|
|
|
|
1994-02-10 15:04:07 +01:00
|
|
|
|
/* If we don't need any secondary registers, done. */
|
1992-02-28 11:23:25 +01:00
|
|
|
|
if (class == NO_REGS)
|
1994-02-10 15:04:07 +01:00
|
|
|
|
return -1;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
|
|
|
|
/* Get a possible insn to use. If the predicate doesn't accept X, don't
|
|
|
|
|
use the insn. */
|
|
|
|
|
|
|
|
|
|
icode = (in_p ? reload_in_optab[(int) reload_mode]
|
|
|
|
|
: reload_out_optab[(int) reload_mode]);
|
|
|
|
|
|
|
|
|
|
if (icode != CODE_FOR_nothing
|
1999-09-12 14:46:08 +02:00
|
|
|
|
&& insn_data[(int) icode].operand[in_p].predicate
|
|
|
|
|
&& (! (insn_data[(int) icode].operand[in_p].predicate) (x, reload_mode)))
|
1992-02-28 11:23:25 +01:00
|
|
|
|
icode = CODE_FOR_nothing;
|
|
|
|
|
|
|
|
|
|
/* If we will be using an insn, see if it can directly handle the reload
|
|
|
|
|
register we will be using. If it can, the secondary reload is for a
|
|
|
|
|
scratch register. If it can't, we will use the secondary reload for
|
|
|
|
|
an intermediate register and require a tertiary reload for the scratch
|
|
|
|
|
register. */
|
|
|
|
|
|
|
|
|
|
if (icode != CODE_FOR_nothing)
|
|
|
|
|
{
|
1999-09-01 16:30:35 +02:00
|
|
|
|
/* If IN_P is non-zero, the reload register will be the output in
|
1992-02-28 11:23:25 +01:00
|
|
|
|
operand 0. If IN_P is zero, the reload register will be the input
|
|
|
|
|
in operand 1. Outputs should have an initial "=", which we must
|
|
|
|
|
skip. */
|
|
|
|
|
|
2001-07-18 05:32:46 +02:00
|
|
|
|
enum reg_class insn_class;
|
|
|
|
|
|
|
|
|
|
if (insn_data[(int) icode].operand[!in_p].constraint[0] == 0)
|
|
|
|
|
insn_class = ALL_REGS;
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
char insn_letter
|
|
|
|
|
= insn_data[(int) icode].operand[!in_p].constraint[in_p];
|
|
|
|
|
insn_class
|
|
|
|
|
= (insn_letter == 'r' ? GENERAL_REGS
|
|
|
|
|
: REG_CLASS_FROM_LETTER ((unsigned char) insn_letter));
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
2001-09-21 23:06:18 +02:00
|
|
|
|
if (insn_class == NO_REGS)
|
|
|
|
|
abort ();
|
|
|
|
|
if (in_p
|
1999-09-12 14:46:08 +02:00
|
|
|
|
&& insn_data[(int) icode].operand[!in_p].constraint[0] != '=')
|
2001-09-21 23:06:18 +02:00
|
|
|
|
abort ();
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* The scratch register's constraint must start with "=&". */
|
|
|
|
|
if (insn_data[(int) icode].operand[2].constraint[0] != '='
|
1999-09-12 14:46:08 +02:00
|
|
|
|
|| insn_data[(int) icode].operand[2].constraint[1] != '&')
|
1992-02-28 11:23:25 +01:00
|
|
|
|
abort ();
|
|
|
|
|
|
2000-08-16 18:53:02 +02:00
|
|
|
|
if (reg_class_subset_p (reload_class, insn_class))
|
|
|
|
|
mode = insn_data[(int) icode].operand[2].mode;
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
char t_letter = insn_data[(int) icode].operand[2].constraint[2];
|
|
|
|
|
class = insn_class;
|
|
|
|
|
t_mode = insn_data[(int) icode].operand[2].mode;
|
|
|
|
|
t_class = (t_letter == 'r' ? GENERAL_REGS
|
|
|
|
|
: REG_CLASS_FROM_LETTER ((unsigned char) t_letter));
|
|
|
|
|
t_icode = icode;
|
|
|
|
|
icode = CODE_FOR_nothing;
|
|
|
|
|
}
|
1992-02-28 11:23:25 +01:00
|
|
|
|
}
|
|
|
|
|
|
1994-02-10 15:04:07 +01:00
|
|
|
|
/* This case isn't valid, so fail. Reload is allowed to use the same
|
|
|
|
|
register for RELOAD_FOR_INPUT_ADDRESS and RELOAD_FOR_INPUT reloads, but
|
|
|
|
|
in the case of a secondary register, we actually need two different
|
|
|
|
|
registers for correct code. We fail here to prevent the possibility of
|
|
|
|
|
silently generating incorrect code later.
|
|
|
|
|
|
|
|
|
|
The convention is that secondary input reloads are valid only if the
|
2000-08-16 18:53:02 +02:00
|
|
|
|
secondary_class is different from class. If you have such a case, you
|
|
|
|
|
can not use secondary reloads, you must work around the problem some
|
|
|
|
|
other way.
|
1994-02-10 15:04:07 +01:00
|
|
|
|
|
2000-08-29 23:18:01 +02:00
|
|
|
|
Allow this when a reload_in/out pattern is being used. I.e. assume
|
|
|
|
|
that the generated code handles this case. */
|
1994-02-10 15:04:07 +01:00
|
|
|
|
|
2000-08-29 23:18:01 +02:00
|
|
|
|
if (in_p && class == reload_class && icode == CODE_FOR_nothing
|
|
|
|
|
&& t_icode == CODE_FOR_nothing)
|
1994-02-10 15:04:07 +01:00
|
|
|
|
abort ();
|
|
|
|
|
|
|
|
|
|
/* If we need a tertiary reload, see if we have one we can reuse or else
|
|
|
|
|
make a new one. */
|
|
|
|
|
|
|
|
|
|
if (t_class != NO_REGS)
|
|
|
|
|
{
|
|
|
|
|
for (t_reload = 0; t_reload < n_reloads; t_reload++)
|
1999-09-12 16:54:56 +02:00
|
|
|
|
if (rld[t_reload].secondary_p
|
|
|
|
|
&& (reg_class_subset_p (t_class, rld[t_reload].class)
|
|
|
|
|
|| reg_class_subset_p (rld[t_reload].class, t_class))
|
|
|
|
|
&& ((in_p && rld[t_reload].inmode == t_mode)
|
|
|
|
|
|| (! in_p && rld[t_reload].outmode == t_mode))
|
|
|
|
|
&& ((in_p && (rld[t_reload].secondary_in_icode
|
1994-02-10 15:04:07 +01:00
|
|
|
|
== CODE_FOR_nothing))
|
1999-09-12 16:54:56 +02:00
|
|
|
|
|| (! in_p &&(rld[t_reload].secondary_out_icode
|
1994-02-10 15:04:07 +01:00
|
|
|
|
== CODE_FOR_nothing)))
|
1997-11-02 22:19:36 +01:00
|
|
|
|
&& (reg_class_size[(int) t_class] == 1 || SMALL_REGISTER_CLASSES)
|
1994-02-10 15:04:07 +01:00
|
|
|
|
&& MERGABLE_RELOADS (secondary_type,
|
1999-09-12 16:54:56 +02:00
|
|
|
|
rld[t_reload].when_needed,
|
|
|
|
|
opnum, rld[t_reload].opnum))
|
1994-02-10 15:04:07 +01:00
|
|
|
|
{
|
|
|
|
|
if (in_p)
|
1999-09-12 16:54:56 +02:00
|
|
|
|
rld[t_reload].inmode = t_mode;
|
1994-02-10 15:04:07 +01:00
|
|
|
|
if (! in_p)
|
1999-09-12 16:54:56 +02:00
|
|
|
|
rld[t_reload].outmode = t_mode;
|
1994-02-10 15:04:07 +01:00
|
|
|
|
|
1999-09-12 16:54:56 +02:00
|
|
|
|
if (reg_class_subset_p (t_class, rld[t_reload].class))
|
|
|
|
|
rld[t_reload].class = t_class;
|
1994-02-10 15:04:07 +01:00
|
|
|
|
|
1999-09-12 16:54:56 +02:00
|
|
|
|
rld[t_reload].opnum = MIN (rld[t_reload].opnum, opnum);
|
|
|
|
|
rld[t_reload].optional &= optional;
|
|
|
|
|
rld[t_reload].secondary_p = 1;
|
|
|
|
|
if (MERGE_TO_OTHER (secondary_type, rld[t_reload].when_needed,
|
|
|
|
|
opnum, rld[t_reload].opnum))
|
|
|
|
|
rld[t_reload].when_needed = RELOAD_OTHER;
|
1994-02-10 15:04:07 +01:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (t_reload == n_reloads)
|
|
|
|
|
{
|
|
|
|
|
/* We need to make a new tertiary reload for this register class. */
|
1999-09-12 16:54:56 +02:00
|
|
|
|
rld[t_reload].in = rld[t_reload].out = 0;
|
|
|
|
|
rld[t_reload].class = t_class;
|
|
|
|
|
rld[t_reload].inmode = in_p ? t_mode : VOIDmode;
|
|
|
|
|
rld[t_reload].outmode = ! in_p ? t_mode : VOIDmode;
|
|
|
|
|
rld[t_reload].reg_rtx = 0;
|
|
|
|
|
rld[t_reload].optional = optional;
|
|
|
|
|
rld[t_reload].inc = 0;
|
1994-02-10 15:04:07 +01:00
|
|
|
|
/* Maybe we could combine these, but it seems too tricky. */
|
1999-09-12 16:54:56 +02:00
|
|
|
|
rld[t_reload].nocombine = 1;
|
|
|
|
|
rld[t_reload].in_reg = 0;
|
|
|
|
|
rld[t_reload].out_reg = 0;
|
|
|
|
|
rld[t_reload].opnum = opnum;
|
|
|
|
|
rld[t_reload].when_needed = secondary_type;
|
|
|
|
|
rld[t_reload].secondary_in_reload = -1;
|
|
|
|
|
rld[t_reload].secondary_out_reload = -1;
|
|
|
|
|
rld[t_reload].secondary_in_icode = CODE_FOR_nothing;
|
|
|
|
|
rld[t_reload].secondary_out_icode = CODE_FOR_nothing;
|
|
|
|
|
rld[t_reload].secondary_p = 1;
|
1994-02-10 15:04:07 +01:00
|
|
|
|
|
|
|
|
|
n_reloads++;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* See if we can reuse an existing secondary reload. */
|
|
|
|
|
for (s_reload = 0; s_reload < n_reloads; s_reload++)
|
1999-09-12 16:54:56 +02:00
|
|
|
|
if (rld[s_reload].secondary_p
|
|
|
|
|
&& (reg_class_subset_p (class, rld[s_reload].class)
|
|
|
|
|
|| reg_class_subset_p (rld[s_reload].class, class))
|
|
|
|
|
&& ((in_p && rld[s_reload].inmode == mode)
|
|
|
|
|
|| (! in_p && rld[s_reload].outmode == mode))
|
|
|
|
|
&& ((in_p && rld[s_reload].secondary_in_reload == t_reload)
|
|
|
|
|
|| (! in_p && rld[s_reload].secondary_out_reload == t_reload))
|
|
|
|
|
&& ((in_p && rld[s_reload].secondary_in_icode == t_icode)
|
|
|
|
|
|| (! in_p && rld[s_reload].secondary_out_icode == t_icode))
|
1997-11-02 22:19:36 +01:00
|
|
|
|
&& (reg_class_size[(int) class] == 1 || SMALL_REGISTER_CLASSES)
|
1999-09-12 16:54:56 +02:00
|
|
|
|
&& MERGABLE_RELOADS (secondary_type, rld[s_reload].when_needed,
|
|
|
|
|
opnum, rld[s_reload].opnum))
|
1994-02-10 15:04:07 +01:00
|
|
|
|
{
|
|
|
|
|
if (in_p)
|
1999-09-12 16:54:56 +02:00
|
|
|
|
rld[s_reload].inmode = mode;
|
1994-02-10 15:04:07 +01:00
|
|
|
|
if (! in_p)
|
1999-09-12 16:54:56 +02:00
|
|
|
|
rld[s_reload].outmode = mode;
|
1994-02-10 15:04:07 +01:00
|
|
|
|
|
1999-09-12 16:54:56 +02:00
|
|
|
|
if (reg_class_subset_p (class, rld[s_reload].class))
|
|
|
|
|
rld[s_reload].class = class;
|
1994-02-10 15:04:07 +01:00
|
|
|
|
|
1999-09-12 16:54:56 +02:00
|
|
|
|
rld[s_reload].opnum = MIN (rld[s_reload].opnum, opnum);
|
|
|
|
|
rld[s_reload].optional &= optional;
|
|
|
|
|
rld[s_reload].secondary_p = 1;
|
|
|
|
|
if (MERGE_TO_OTHER (secondary_type, rld[s_reload].when_needed,
|
|
|
|
|
opnum, rld[s_reload].opnum))
|
|
|
|
|
rld[s_reload].when_needed = RELOAD_OTHER;
|
1994-02-10 15:04:07 +01:00
|
|
|
|
}
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
1994-02-10 15:04:07 +01:00
|
|
|
|
if (s_reload == n_reloads)
|
|
|
|
|
{
|
1997-11-02 22:19:36 +01:00
|
|
|
|
#ifdef SECONDARY_MEMORY_NEEDED
|
|
|
|
|
/* If we need a memory location to copy between the two reload regs,
|
|
|
|
|
set it up now. Note that we do the input case before making
|
1999-09-01 16:30:35 +02:00
|
|
|
|
the reload and the output case after. This is due to the
|
1997-11-02 22:19:36 +01:00
|
|
|
|
way reloads are output. */
|
|
|
|
|
|
|
|
|
|
if (in_p && icode == CODE_FOR_nothing
|
|
|
|
|
&& SECONDARY_MEMORY_NEEDED (class, reload_class, mode))
|
2000-07-12 19:20:17 +02:00
|
|
|
|
{
|
|
|
|
|
get_secondary_mem (x, reload_mode, opnum, type);
|
|
|
|
|
|
|
|
|
|
/* We may have just added new reloads. Make sure we add
|
|
|
|
|
the new reload at the end. */
|
|
|
|
|
s_reload = n_reloads;
|
|
|
|
|
}
|
1997-11-02 22:19:36 +01:00
|
|
|
|
#endif
|
|
|
|
|
|
1994-02-10 15:04:07 +01:00
|
|
|
|
/* We need to make a new secondary reload for this register class. */
|
1999-09-12 16:54:56 +02:00
|
|
|
|
rld[s_reload].in = rld[s_reload].out = 0;
|
|
|
|
|
rld[s_reload].class = class;
|
|
|
|
|
|
|
|
|
|
rld[s_reload].inmode = in_p ? mode : VOIDmode;
|
|
|
|
|
rld[s_reload].outmode = ! in_p ? mode : VOIDmode;
|
|
|
|
|
rld[s_reload].reg_rtx = 0;
|
|
|
|
|
rld[s_reload].optional = optional;
|
|
|
|
|
rld[s_reload].inc = 0;
|
1994-02-10 15:04:07 +01:00
|
|
|
|
/* Maybe we could combine these, but it seems too tricky. */
|
1999-09-12 16:54:56 +02:00
|
|
|
|
rld[s_reload].nocombine = 1;
|
|
|
|
|
rld[s_reload].in_reg = 0;
|
|
|
|
|
rld[s_reload].out_reg = 0;
|
|
|
|
|
rld[s_reload].opnum = opnum;
|
|
|
|
|
rld[s_reload].when_needed = secondary_type;
|
|
|
|
|
rld[s_reload].secondary_in_reload = in_p ? t_reload : -1;
|
|
|
|
|
rld[s_reload].secondary_out_reload = ! in_p ? t_reload : -1;
|
|
|
|
|
rld[s_reload].secondary_in_icode = in_p ? t_icode : CODE_FOR_nothing;
|
|
|
|
|
rld[s_reload].secondary_out_icode
|
1994-02-10 15:04:07 +01:00
|
|
|
|
= ! in_p ? t_icode : CODE_FOR_nothing;
|
1999-09-12 16:54:56 +02:00
|
|
|
|
rld[s_reload].secondary_p = 1;
|
1994-02-10 15:04:07 +01:00
|
|
|
|
|
|
|
|
|
n_reloads++;
|
|
|
|
|
|
|
|
|
|
#ifdef SECONDARY_MEMORY_NEEDED
|
|
|
|
|
if (! in_p && icode == CODE_FOR_nothing
|
1996-09-25 02:44:04 +02:00
|
|
|
|
&& SECONDARY_MEMORY_NEEDED (reload_class, class, mode))
|
|
|
|
|
get_secondary_mem (x, mode, opnum, type);
|
1994-02-10 15:04:07 +01:00
|
|
|
|
#endif
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
*picode = icode;
|
|
|
|
|
return s_reload;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
}
|
|
|
|
|
#endif /* HAVE_SECONDARY_RELOADS */
|
|
|
|
|
|
1992-07-17 11:57:24 +02:00
|
|
|
|
#ifdef SECONDARY_MEMORY_NEEDED
|
|
|
|
|
|
1999-09-01 16:30:35 +02:00
|
|
|
|
/* Return a memory location that will be used to copy X in mode MODE.
|
1992-07-17 11:57:24 +02:00
|
|
|
|
If we haven't already made a location for this mode in this insn,
|
|
|
|
|
call find_reloads_address on the location being returned. */
|
|
|
|
|
|
|
|
|
|
rtx
|
1993-03-29 13:27:52 +02:00
|
|
|
|
get_secondary_mem (x, mode, opnum, type)
|
collect2.c (scan_prog_file, [...]): Prototype function pointers and casts for `int_handler' and `quit_handler'.
* collect2.c (scan_prog_file, scan_libraries): Prototype function
pointers and casts for `int_handler' and `quit_handler'.
* flow.c (verify_flow_info, split_hard_reg_notes,
find_insn_with_note, sets_reg_or_subreg_1, prepend_reg_notes,
remove_edge, remove_fake_successors): Add static prototypes.
(verify_flow_info): Wrap with macro ENABLE_CHECKING.
(mark_set_1): Initialize variable `regno'.
(unlink_insn_chain): Likewise for variable `curr'.
(remove_fake_edges): Remove unused variables `e', `tmp' and `last'.
* loop.c (strength_reduce): Initialize variable
`unrolled_insn_copies'.
(cmp_combine_givs_stats, cmp_recombine_givs_stats): Add static
prototypes. Change these functions to take const PTR parameters
to avoid prototype conflict when used as the comparson argument
for qsort.
(check_dbra_loop): Initialize variable `comparison_val'.
* reload.c (debug_reload_to_stream, debug_reload): Add prototypes.
(get_secondary_mem): Mark parameter `x' with ATTRIBUTE_UNUSED.
(find_valid_class): Initialize variable `best_class'.
(find_reloads): Call memcpy, not bcopy.
* reload1.c (gen_mode_int, dump_needs): Add prototypes.
(hard_reg_use_compare): Don't needlessly cast away const.
(reload_reg_class_lower): Likewise.
(choose_reload_regs): Initialize variable `regno'.
From-SVN: r29840
1999-10-06 16:48:41 +02:00
|
|
|
|
rtx x ATTRIBUTE_UNUSED;
|
1992-07-17 11:57:24 +02:00
|
|
|
|
enum machine_mode mode;
|
1993-03-29 13:27:52 +02:00
|
|
|
|
int opnum;
|
|
|
|
|
enum reload_type type;
|
1992-07-17 11:57:24 +02:00
|
|
|
|
{
|
|
|
|
|
rtx loc;
|
|
|
|
|
int mem_valid;
|
|
|
|
|
|
1994-03-06 01:17:12 +01:00
|
|
|
|
/* By default, if MODE is narrower than a word, widen it to a word.
|
|
|
|
|
This is required because most machines that require these memory
|
|
|
|
|
locations do not support short load and stores from all registers
|
|
|
|
|
(e.g., FP registers). */
|
|
|
|
|
|
|
|
|
|
#ifdef SECONDARY_MEMORY_NEEDED_MODE
|
|
|
|
|
mode = SECONDARY_MEMORY_NEEDED_MODE (mode);
|
|
|
|
|
#else
|
2000-05-28 03:07:18 +02:00
|
|
|
|
if (GET_MODE_BITSIZE (mode) < BITS_PER_WORD && INTEGRAL_MODE_P (mode))
|
1992-07-17 11:57:24 +02:00
|
|
|
|
mode = mode_for_size (BITS_PER_WORD, GET_MODE_CLASS (mode), 0);
|
1994-03-06 01:17:12 +01:00
|
|
|
|
#endif
|
1992-07-17 11:57:24 +02:00
|
|
|
|
|
1993-03-29 23:39:58 +02:00
|
|
|
|
/* If we already have made a MEM for this operand in MODE, return it. */
|
|
|
|
|
if (secondary_memlocs_elim[(int) mode][opnum] != 0)
|
|
|
|
|
return secondary_memlocs_elim[(int) mode][opnum];
|
1992-07-17 11:57:24 +02:00
|
|
|
|
|
1999-09-01 16:30:35 +02:00
|
|
|
|
/* If this is the first time we've tried to get a MEM for this mode,
|
1992-07-17 11:57:24 +02:00
|
|
|
|
allocate a new one. `something_changed' in reload will get set
|
|
|
|
|
by noticing that the frame size has changed. */
|
|
|
|
|
|
|
|
|
|
if (secondary_memlocs[(int) mode] == 0)
|
1993-03-16 20:52:45 +01:00
|
|
|
|
{
|
|
|
|
|
#ifdef SECONDARY_MEMORY_NEEDED_RTX
|
|
|
|
|
secondary_memlocs[(int) mode] = SECONDARY_MEMORY_NEEDED_RTX (mode);
|
|
|
|
|
#else
|
|
|
|
|
secondary_memlocs[(int) mode]
|
|
|
|
|
= assign_stack_local (mode, GET_MODE_SIZE (mode), 0);
|
|
|
|
|
#endif
|
|
|
|
|
}
|
1992-07-17 11:57:24 +02:00
|
|
|
|
|
|
|
|
|
/* Get a version of the address doing any eliminations needed. If that
|
|
|
|
|
didn't give us a new MEM, make a new one if it isn't valid. */
|
|
|
|
|
|
reload.h, [...]: Revert March 15 change.
* reload.h, reload1.c (eliminate_regs), caller-save.c, dbxout.c,
dwarfout.c, dwarf2out.c, reload.c, sdbout.c: Revert March 15 change.
* reload.c (push_reload): If WORD_REGISTER_OPERATIONS, reload the
SUBREG_REG if the word count is unchanged.
* reload1.c (eliminate_regs) [case SET]: If W_R_O, preserve
subregs of identical word size for push_reload.
From-SVN: r17105
1997-12-15 18:55:58 +01:00
|
|
|
|
loc = eliminate_regs (secondary_memlocs[(int) mode], VOIDmode, NULL_RTX);
|
1992-07-17 11:57:24 +02:00
|
|
|
|
mem_valid = strict_memory_address_p (mode, XEXP (loc, 0));
|
|
|
|
|
|
|
|
|
|
if (! mem_valid && loc == secondary_memlocs[(int) mode])
|
|
|
|
|
loc = copy_rtx (loc);
|
|
|
|
|
|
|
|
|
|
/* The only time the call below will do anything is if the stack
|
|
|
|
|
offset is too large. In that case IND_LEVELS doesn't matter, so we
|
1993-03-29 13:27:52 +02:00
|
|
|
|
can just pass a zero. Adjust the type to be the address of the
|
|
|
|
|
corresponding object. If the address was valid, save the eliminated
|
|
|
|
|
address. If it wasn't valid, we need to make a reload each time, so
|
|
|
|
|
don't save it. */
|
1992-07-17 11:57:24 +02:00
|
|
|
|
|
1993-03-29 13:27:52 +02:00
|
|
|
|
if (! mem_valid)
|
|
|
|
|
{
|
|
|
|
|
type = (type == RELOAD_FOR_INPUT ? RELOAD_FOR_INPUT_ADDRESS
|
|
|
|
|
: type == RELOAD_FOR_OUTPUT ? RELOAD_FOR_OUTPUT_ADDRESS
|
|
|
|
|
: RELOAD_OTHER);
|
1992-12-16 20:19:12 +01:00
|
|
|
|
|
2002-06-14 03:41:53 +02:00
|
|
|
|
find_reloads_address (mode, &loc, XEXP (loc, 0), &XEXP (loc, 0),
|
1997-03-15 13:28:39 +01:00
|
|
|
|
opnum, type, 0, 0);
|
1993-03-29 13:27:52 +02:00
|
|
|
|
}
|
1992-07-17 11:57:24 +02:00
|
|
|
|
|
1993-03-29 23:39:58 +02:00
|
|
|
|
secondary_memlocs_elim[(int) mode][opnum] = loc;
|
1992-07-17 11:57:24 +02:00
|
|
|
|
return loc;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Clear any secondary memory locations we've made. */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
clear_secondary_mem ()
|
|
|
|
|
{
|
alias.c [...] (init_alias_analysis, [...]): Use memset () instead of bzero ().
* alias.c (init_alias_analysis), calls.c (expand_call,
emit_library_call_value_1), combine.c (init_reg_last_arrays),
cse.c (new_basic_block), dbxout.c (dbxout_type), diagnostic.c
(init_output_buffer, set_diagnostic_context), dwarf2out.c
(equate_decl_number_to_die, build_abbrev_table), emit-rtl.c
(init_emit_once), fold-const.c (mul_double, div_and_round_double),
function.c (assign_parms), gcse.c (compute_can_copy,
alloc_gcse_mem, alloc_reg_set_mem, record_one_set,
compute_hash_table, compute_set_hash_table,
compute_expr_hash_table), genattrtab.c (optimize_attrs), global.c
(global_alloc, global_conflicts), haifa-sched.c (compute_trg_info,
clear_units, schedule_block), integrate.c (initialize_for_inline,
expand_inline_function), jump.c (thread_jumps), local-alloc.c
(local_alloc), loop.c (combine_movables, count_loop_regs_set,
load_mems_and_recount_loop_regs_set), print-tree.c (debug_tree),
regclass.c (init_reg_sets, init_reg_sets_1, regclass,
record_reg_classes, allocate_reg_info), reload.c
(get_secondary_mem, remove_address_replacements, find_reloads),
reload1.c (reload, set_initial_label_offsets, finish_spills,
reload_as_needed, choose_reload_regs_init,
reload_cse_simplify_operands), reorg.c (dbr_schedule), sbitmap.c
(sbitmap_zero), simplify-rtx.c (simplify_plus_minus), ssa.c
(rename_registers), stmt.c (expand_end_case), unroll.c
(unroll_loop), varray.c (varray_grow), objc/objc-act.c: Use memset
() instead of bzero ().
ch:
* actions.c (check_missing_cases), typeck.c (build_chill_slice,
build_chill_cast): Use memset () instead of bzero ().
cp:
* class.c (duplicate_tag_error, build_vtbl_initializer), decl.c
(push_binding_level), error.c (cp_tree_printer), pt.c
(process_partial_specialization, tsubst_template_arg_vector),
search.c (lookup_member): Use memset () instead of bzero ().
java:
* expr.c (note_instructions), jcf-io.c (find_class), jcf-parse.c
(init_outgoing_cpool), lex.c (java_init_lex): Use memset ()
instead of bzero ().
From-SVN: r37303
2000-11-07 23:50:06 +01:00
|
|
|
|
memset ((char *) secondary_memlocs, 0, sizeof secondary_memlocs);
|
1992-07-17 11:57:24 +02:00
|
|
|
|
}
|
|
|
|
|
#endif /* SECONDARY_MEMORY_NEEDED */
|
|
|
|
|
|
1995-12-22 23:36:25 +01:00
|
|
|
|
/* Find the largest class for which every register number plus N is valid in
|
2002-05-26 14:01:40 +02:00
|
|
|
|
M1 (if in range) and is cheap to move into REGNO.
|
|
|
|
|
Abort if no such class exists. */
|
1995-12-22 23:36:25 +01:00
|
|
|
|
|
|
|
|
|
static enum reg_class
|
2002-05-26 14:01:40 +02:00
|
|
|
|
find_valid_class (m1, n, dest_regno)
|
2000-01-13 01:17:33 +01:00
|
|
|
|
enum machine_mode m1 ATTRIBUTE_UNUSED;
|
1995-12-22 23:36:25 +01:00
|
|
|
|
int n;
|
2002-05-26 14:01:40 +02:00
|
|
|
|
unsigned int dest_regno;
|
1995-12-22 23:36:25 +01:00
|
|
|
|
{
|
2002-05-26 14:01:40 +02:00
|
|
|
|
int best_cost = -1;
|
1995-12-22 23:36:25 +01:00
|
|
|
|
int class;
|
|
|
|
|
int regno;
|
collect2.c (scan_prog_file, [...]): Prototype function pointers and casts for `int_handler' and `quit_handler'.
* collect2.c (scan_prog_file, scan_libraries): Prototype function
pointers and casts for `int_handler' and `quit_handler'.
* flow.c (verify_flow_info, split_hard_reg_notes,
find_insn_with_note, sets_reg_or_subreg_1, prepend_reg_notes,
remove_edge, remove_fake_successors): Add static prototypes.
(verify_flow_info): Wrap with macro ENABLE_CHECKING.
(mark_set_1): Initialize variable `regno'.
(unlink_insn_chain): Likewise for variable `curr'.
(remove_fake_edges): Remove unused variables `e', `tmp' and `last'.
* loop.c (strength_reduce): Initialize variable
`unrolled_insn_copies'.
(cmp_combine_givs_stats, cmp_recombine_givs_stats): Add static
prototypes. Change these functions to take const PTR parameters
to avoid prototype conflict when used as the comparson argument
for qsort.
(check_dbra_loop): Initialize variable `comparison_val'.
* reload.c (debug_reload_to_stream, debug_reload): Add prototypes.
(get_secondary_mem): Mark parameter `x' with ATTRIBUTE_UNUSED.
(find_valid_class): Initialize variable `best_class'.
(find_reloads): Call memcpy, not bcopy.
* reload1.c (gen_mode_int, dump_needs): Add prototypes.
(hard_reg_use_compare): Don't needlessly cast away const.
(reload_reg_class_lower): Likewise.
(choose_reload_regs): Initialize variable `regno'.
From-SVN: r29840
1999-10-06 16:48:41 +02:00
|
|
|
|
enum reg_class best_class = NO_REGS;
|
2002-05-26 14:01:40 +02:00
|
|
|
|
enum reg_class dest_class = REGNO_REG_CLASS (dest_regno);
|
* Rework fields used to describe positions of bitfields and
modify sizes to be unsigned and use HOST_WIDE_INT.
* alias.c (reg_known_value_size): Now unsigned.
* c-typeck.c (build_unary_op, case ADDR_EXPR): Use byte_position.
(really_start_incremental_init): Use bitsize_zero_node.
(push_init_level, pop_init_level, output_init_element): Likewise.
Use bitsize_unit_node and bitsize_one_node.
(output_pending_init_elements, process_init_element): Likewise.
* combine.c (combine_max_regno, reg_sign_bit_copies): Now unsigned.
(make_extraction): Position and length HOST_WIDE_INT and unsigned
HOST_WIDE_INT, respectively.
(get_pos_from_mask): Passed in value is unsigned HOST_WIDE_INT.
(num_sign_bit_copies): Returns unsigned.
BITWIDTH now unsigned; rework arithmetic.
Remove recursive call from arg to MAX.
(combine_instructions, init_reg_last_arrays): NREGS now unsigned.
(setup_incoming_promotions, can_combine_p, try_combine, simplify_set):
REGNO now unsigned.
(set_nonzero_bit_and_sign_copies): NUM now unsigned.
(find_split_point, expand_compound_operation, make_extraction): LEN
now unsigned HOST_WIDE_INT, POS now HOST_WIDE_INT.
(make_field_assignment): Likewise.
(combine_simplify_rtx): Add cast.
(expand_compound_operation): MODEWIDTH now unsigned; rework arithmetic.
(force_to_mode): WIDTH now unsigned; add cast.
(if_then_else_cond): SIZE now unsigned.
(nonzero_bits): MODE_WIDTH, RESULT_WIDTH, and WIDTH now unsigned.
(extended_count): Now returns unsigned.
(simplify_shift_const): COUNT unsigned; arg is now INPUT_COUNT.
Add SIGNED_COUNT variable; MODE_WORDS and FIRST_COUNT now unsigned.
(simplify_comparison): MODE_WIDTH now unsigned.
(update_table_tick): REGNO and ENDREGNO now unsigned; new var R.
(mark_used_regs_combine): Likewise; rework arithmetic.
(record_value_for_reg): REGNO, ENDREGNO, and I now unsigned.
(record_dead_and_set_regs, reg_dead_at_p, distribute_notes): Likewise.
(record_promoted_value): REGNO now unsigned.
(get_last_value_validate): REGNO, ENDREGNO, and J now unsigned.
(get_last_value): REGNO now unsigned.
(use_crosses_set_p): REGNO and ENDREGNO now unsigned.
(reg_dead_regno, reg_dead_endregno): Now unsigned.
(remove_death): Arg REGNO now unsigned.
(move_deaths): REGNO, DEADREGNO, DEADEND, OUREND, and I now unsigned.
(reg_bitfield_target_p): REGNO, REGNO, ENDREGNO, and ENDTREGNO
now unsigned.
* convert.c (convert_to_integer): INPREC and OUTPREC now unsigned.
* cse.c (struct qty_table_elem): FIRST_REG and LAST_REG now unsigned.
(struct cse_reg_info): REGNO now unsigned.
(cached_regno): Now unsigned.
(REGNO_QTY_VALID_P): Add cast.
(make_new_qty, make_regs_eqv, delete_reg_eqiv): Regno args unsigned.
(remove_invalid_regs): Likewise.
(remove_invalid_subreg_refs): Likewise; arg WORD also unsigned
as are variables END and I.
(get_cse_reg_info, insert): Likewise.
(mention_regs, invalidate_for_call): REGNO, ENDREGNO, and I unsigned.
(canon_hash): Likewise.
(insert_regs, lookup_for_remove): REGNO now unsigned.
(invalidate): REGNO, ENDREGNO, TREGNO, and TENDREGNO now unsigned.
New variable RN.
* dbxout.c (dbxout_parms, dbxout_reg_parms): Don't check for REGNO < 0.
* dwarf2out.c (dwarf2ou_frame_debug_expr): Remove cast.
* emit-rtl.c (subreg_realpart_p): Add cast.
(operand_subword): Arg I is now unsigned as is var PARTWORDS.
(operand_subword_force): Arg I is now unsigned.
* except.c (eh_regs): Variable I is now unsigned.
* explow.c (hard_function_value): BYTES is unsigned HOST_WIDE_INT.
* expmed.c (store_fixed_bit_field): Position is HOST_WIDE_INT;
length is unsigned HOST_WIDE_INT; likewise for internal variables.
(store_split_bit_field, extract_fixed_bit_field): Likewise.
(extract_split_bit_field, store_bit_field, extract_bit_field):
Likewise.
* expr.c (store_constructor_fields, store_constructor, store_field):
Positions are HOST_WIDE_INT and lengths are unsigned HOST_WIDE_INT.
(expand_assignment, expand_expr, expand_expr_unaligned): Likewise.
(do_jump): Likewise.
(move_by_pieces, move_by_pieces_ninsns, clear_by_pieces):
MAX_SIZE is now unsigned.
(emit_group_load): BYTEPOS is HOST_WIDE_INT; BYTELEN is unsigned.
(emit_group_store): Likewise.
(emit_move_insn): I now unsigned.
(store_constructor): Use host_integerp, tree_low_cst, and
bitsize_unit_node.
(get_inner_reference): Return bitpos and bitsize as HOST_WIDE_INT.
Rework all calculations to use trees and new fields.
* expr.h (promoted_input_arg): Regno now unsigned.
(store_bit_field, extract_bit_field): Adjust types of pos and size.
(mark_seen_cases): Arg is HOST_WIDE_INT.
* flow.c (verify_wide_reg_1): REGNO now unsigned.
* fold-const.c (decode_field_reference): Size and pos HOST_WIDE_INT;
precisions and alignments are unsigned.
(optimize_bit_field_compare, fold_truthop): Likewise.
(int_const_binop): Adjust threshold for size_int_type_wide call.
(fold_convert): Likewise.
(size_int_type_wide): Make table larger and fix thinko that only
had half of table used.
(all_ones_mask_p, fold): Precisions are unsigned.
* function.c (put_reg_info_stack): REGNO is unsigned.
(instantiate_decl): Size is HOST_WIDE_INT.
(instantiate_virtual_regs): I is unsigned.
(assign_parms): REGNO, REGNOI, and REGNOR are unsigned.
(promoted_input_arg): REGNO is unsigned.
* function.h (struct function): x_max_parm_reg is now unsigned.
* gcse.c (max_gcse_regno): Now unsigned.
(struct null_pointer_info): min_reg and max_reg now unsigned.
(lookup_set, next_set): REGNO arg now unsigned.
(compute_hash_table): REGNO and I now unsigned.
(handle_avail_expr): regnum_for_replacing now unsigned.
(cprop_insn): REGNO now unsigned.
(delete_null_pointer_checks_1): BLOCK_REG now pointer to unsigned.
* ggc-common.c (ggc_mark_tree_children, case FIELD_DECL): New case.
* global.c (set_preference): SRC_REGNO, DEST_REGNO, and I now unsigned.
* hard-reg-set.h (reg_class_size): Now unsigned.
* integrate.c (mark_stores): LAST_REG and I now unsigned; new UREGNO.
* jump.c (mark_modified_reg): I now unsigned; add cast.
(rtx_equal_for_thread_p): Add cast.
* loop.c (max_reg_before_loop): Now unsigned.
(struct_movable): REGNO now unsigned.
(try_copy_prop): REGNO arg unsigned.
(regs_match_p): XN and YN now unsigned.
(consec_sets_invariant_p, maybe_eliminate_biv): REGNO now unsigned.
(strength_reduce): Likewise; NREGS also unsigned.
(first_increment_giv, last_increment_giv unsigned): Now unsigned.
* loop.h (struct iv_class): REGNO now unsigned.
(max_reg_before_loop, first_increment_giv, last_increment_giv):
Now unsigned.
* machmode.h (mode_size, mode_unit_size): Now unsigned.
(mode_for_size, smallest_mode_for_size): Pass size as unsigned.
* optabs.c (expand_binop): I and NWORDS now unsigned.
(expand_unop): I now unsigned.
* print-tree.c (print_node): Don't print DECL_FIELD_BITPOS, but do
print DECL_FIELD_OFFSET and DECL_FIELD_BIT_OFFSET.
* real.c (significand_size): Now returns unsigned.
* real.h (significand_size): Likewise.
* regclass.c (reg_class_size): Now unsigned.
(choose_hard_reg_mode): Both operands now unsigned.
(record_reg_classes): REGNO and NR now unsigned.
(reg_scan): NREGS now unsigned.
(reg_scan_update): old_max_regno now unsigned.
(reg_scan_mark_refs): Arg MIN_REGNO and var REGNO now unsigned.
* reload.c (find_valid_class): BEST_SIZE now unsigned.
(find_dummy_reload): REGNO, NWORDS, and I now unsigned.
(hard_reg_set_here_p): Args BEG_REGNO and END_REGNO now unsigned.
Likewise for variable R.
(refers_to_regno_for_reload_p): Args REGNO and END_REGNO now unsigned,
as are variables INNER_REGNO and INNER_ENDREGNO; add new variable R.
(find_equiv_reg): Add casts.
(regno_clobbered_p): Arg REGNO now unsigned.
* reload.h (struct reload): NREGS now unsigned.
(refers_to_regno_for_reload_p): Regno args are unsigned.
(regno_clobbered_p): Likewise.
* reload1.c (reg_max_ref_width, spill_stack_slot_width): Now unsigned.
(compute_use_by_pseudos): REGNO now unsigned.
(find_reg): I and J now unsigned, new variable K, and change loop
variables accordingly; THIS_NREGS now unsigned.
(alter_reg): INHERENT_SIZE and TOTAL_SIZE now unsigned.
(spill_hard_reg): REGNO arg now unsigned; add casts.
(forget_old_reloads_1): REGNO, NR, and I now unsigned.
(mark_reload_reg_in_use): Arg REGNO and vars NREGS and I now unsigned.
(clear_reload_reg_in_use): Arg REGNO and vars NREGS, START_REGNO,
END_REGNO, CONFLICT_START, and CONFLICT_END now unsigned.
(reload_reg_free_p, reload_reg_reaches_end_p): Arg REGNO now unsigned.
(choose_reload_regs): MAX_GROUP_SIZE now unsigned.
(emit_reload_insns): REGNO now unsigned.
(reload_cse_move2add): Add cast.
(move2add_note_store): REGNO and I now unsigned; new variable ENDREGNO
and rework loop.
* resource.c (mark_referenced_resources, mark_set_resources): New
variable R; REGNO and LAST_REGNO now unsigned.
(mark_target_live_regs): J and REGNO now unsigned.
* rtl.c (mode_size, mode_unit_size): Now unsigned.
* rtl.h (union rtunion_def): New field rtuint.
(XCUINT): New macro.
(ADDRESSOF_REGNO, REGNO, SUBREG_WORD): New XCUINT.
(operand_subword, operand_subword_force): Word number is unsigned.
(choose_hard_reg_mode): Operands are unsigned.
(refers_to-regno_p, dead_or_set_regno_p): Regno arg is unsigned.
(find_regno_note, find_regno_fusage, replace_regs): Likewise.
(regno_use_in, combine_instructions, remove_death): Likewise.
(reg_scan, reg_scan_update): Likewise.
(extended_count): Return is unsigned.
* rtlanal.c (refers_to_regno_p): Args REGNO and ENDREGNO and vars I,
INNER_REGNO, and INNER_ENDREGNO now unsigned; new variable X_REGNO.
(reg_overlap_mentioned_p): REGNO and ENDREGNO now unsigned.
(reg_set_last_first_regno, reg_set_last_last_regno): Now unsigned.
(reg_reg_last_1): FIRS and LAST now unsigned.
(dead_or_set_p): REGNO, LAST_REGNO, and I now unsigned.
(dead_or_set_regno_p): Arg TEST_REGNO and vars REGNO and ENDREGNO
now unsigned.
(find_regno_note, regno_use_in): Arg REGNO now unsigned.
(find_regno_fusage): Likewise; also var REGNOTE now unsigned.
(find_reg_fusage): Variables REGNO, END_REGNO, and I now unsigned.
(replace_regs): Arg NREGS now unsigned.
* sdbout.c (sdbout_parms, sdbout_reg_parms): Don't check REGNO < 0.
* simplify-rtx.c (simplify_unary_operation): WIDTH now unsigned.
(simplify_binary_operation): Likewise.
(cselib_invalidate_regno): Arg REGNO and variables ENDREGNO, I, and
THIS_LAST now unsigned.
(cselib_record_set): Add cast.
* ssa.c (ssa_max_reg_num): Now unsigned.
(rename_block): REGNO now unsigned.
* stmt.c (expand_return): Bit positions unsigned HOST_WIDE_INT;
sizes now unsigned.
(all_cases_count): Just return -1 not -2.
COUNT, MINVAL, and LASTVAL now HOST_WIDE_INT.
Rework tests to use trees whenever possible.
Use host_integerp and tree_low_cst.
(mark_seen_cases): COUNT arg now HOST_WIDE_INT;
Likewise variable NEXT_NODE_OFFSET; XLO now unsigned.
(check_for_full_enumeration_handing): BYTES_NEEDED, I to HOST_WIDE_INT.
* stor-layout.c (mode_for_size): SIZE arg now unsigned.
(smallest_mode_for_size): Likewise.
(layout_decl): Simplify handing of a specified DECL_SIZE_UNIT.
KNOWN_ALIGN is now an alignment, so simplify code.
Don't turn off DECL_BIT_FIELD if field is BLKmode, but not type.
(start_record_layout): Renamed from new_record_layout_info.
Update to new fields.
(debug_rli, normalize_rli, rli_size_unit_so_far, rli_size_so_far):
New functions.
(place_union_field): Renamed from layout_union_field.
Update to use new fields in rli.
(place_field): Renamed from layout_field.
Major rewrite to use new fields in rli; pass alignment to layout_decl.
(finalize_record_size): Rework to use new fields in rli and handle
union.
(compute_record_mode): Rework to simplify and to use new DECL fields.
(finalize_type_size): Make rounding more consistent.
(finish_union_layout): Deleted.
(layout_type, case VOID_TYPE): Don't set TYPE_SIZE_UNIT either.
(layout_type, case RECORD_TYPE): Call new function names.
(initialize_sizetypes): Set TYPE_IS_SIZETYPE.
(set_sizetype): Set TYPE_IS_SIZETYPE earlier.
(get_best_mode): UNIT is now unsigned; remove casts.
* tree.c (bit_position): Compute from new fields.
(byte_position, int_byte_position): New functions.
(print_type_hash_statistics): Cast to remove warning.
(build_range_type): Use host_integerp and tree_low_cst to try to hash.
(build_index_type): Likewise; make subtype of sizetype.
(build_index_2_type): Pass sizetype to build_range_type.
(build_common_tree_nodes): Use size_int and bitsize_int to
initialize nodes; add bitsize_{zero,one,unit}_node.
* tree.h (DECL_FIELD_CONTEXT): Use FIELD_DECL_CHECK.
(DECL_BIT_FIELD_TYPE, DECL_QUALIFIER, DECL_FCONTEXT): Likewise.
(DECL_PACKED, DECL_BIT_FIELD): Likewise.
(DECL_FIELD_BITPOS): Deleted.
(DECL_FIELD_OFFSET, DECL_FIELD_BIT_OFFSET): New fields.
(DECL_RESULT, DECL_SAVED_INSNS): Use FUNCTION_DECL_CHECK.
(DECL_FRAME_SIZE, DECL_FUNCTION_CODE, DECL_NO_STATIC_CHAIN): Likewise.
(DECL_INLINE, DECL_BUILT_IN_NONANSI, DECL_IS_MALLOC): Likewise.
(DECL_BUILT_IN_CLASS, DECL_STATIC_CONSTRUCTOR): Likewise.
(DECL_STATIC_DESTRUCTOR, DECL_NO_CHECK_MEMORY_USAGE): Likewise.
(DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT, DECL_NO_LIMIT_STACK) Likewise.
(DECL_ORIGINAL_TYPE, TYPE_DECL_SUPPRESS_DEBUG): Use TYPE_DECL_CHECK.
(DECL_ARG_TYPE_AS_WRITEN, DECL_ARG_TYPE): Use PARM_DECL_CHECK.
(DECL_INCOMING_RTL, DECL_TRANSPARENT_UNION): Likewise.
(DECL_ALIGN): Adjust to new field in union.
(DECL_OFFSET_ALIGN): New field.
(DECL_ERROR_ISSUED, DECL_TOO_LATE): Use LABEL_DECL_CHECK.
(DECL_IN_TEXT_SECTION): Use VAR_DECL_CHECK.
(union tree_decl): Add struct for both aligns.
(enum tree_index): Add TI_BITSIZE_{ZERO,ONE,UNIT}.
(bitsize_zero_node, bitsize_one_node, bitsize_unit_node): Added.
(struct record_layout_info): Rework fields to have offset
alignment and byte and bit position.
(start_record_layout, place_field): Renamed from old names.
(rli_size_so_far, rli_size_unit_so_far, normalize_rli): New decls.
(byte_position, int_byte_position): Likewise.
(get_inner_reference): Change types of position and length.
* unroll.c (unroll_loop): New variable R; use for some loops.
MAX_LOCAL_REGNUM and MAXREGNUM now unsigned.
(calculate_giv_inc): Arg REGNO now unsigned.
(copy_loop_body): REGNO and SRC_REGNO now unsigned.
* varasm.c (assemble_variable): Clean up handling of size using
host_integerp and tree_low_cst.
(decode_addr_const): Use byte, not bit, position.
(output_constructor): bitpos and offsets are HOST_WIDE_INT;
use tree_low_cst and int_bit_position.
* objc/objc-act.c (build_ivar_list_initializer): Use byte_position.
* ch/actions.c (check_missing_cases): BYTES_NEEDED is HOST_WIDE_INT.
* ch/typeck.c (expand_constant_to_buffer): Use int_byte_position.
(extract_constant_from_buffer): Likewise.
* cp/class.c (build_vbase_pointer_fields): layout_field now
place_field.
(get_vfield_offset): Use byte_position.
(set_rtti_entry): Set OFFSET to ssizetype zero.
(get_binfo_offset_as_int): Deleted.
(dfs_record_base_offsets): Use tree_low_cst.
(dfs_search_base_offsets): Likewise.
(layout_nonempty_base_or_field): Reflect changes in RLI format
and call byte_position.
(layout_empty_base): Convert offset to ssizetype.
(build_base_field): use rli_size_unit_so_far.
(dfs_propagate_binfo_offsets): Do computation in proper type.
(layout_virtual_bases): Pass ssizetype to propagate_binfo_offsets.
(layout_class_type): Reflect changes in RLI names and fields.
(finish_struct_1): Set DECL_FIELD_OFFSET.
* cp/dump.c (dequeue_and_dump): Call bit_position.
* cp/expr.c (cplus_expand_constant): Use byte_position.
* cp/rtti.c (expand_class_desc): Use bitsize_one_node.
* cp/typeck.c (build_component_addr): Use byte_position and don't
special case for zero offset.
* f/com.c (ffecom_tree_canonize_ptr_): Use bitsize_zero_node.
(ffecom_tree_canonize_ref_): Likewise.
* java/class.c (make_field_value): Use byte_position.
* java/expr.c (JAVA_ARRAY_LENGTH_OFFSET): Use byte_position.
(java_array_data_offset): Likewise.
* java/java-tree.h (MAYBE_CREATE_TYPE_TYPE_LANG_SPECIFIC): Add case to
bzero call.
From-SVN: r32742
2000-03-25 19:34:13 +01:00
|
|
|
|
unsigned int best_size = 0;
|
2002-06-13 18:20:02 +02:00
|
|
|
|
int cost;
|
1995-12-22 23:36:25 +01:00
|
|
|
|
|
|
|
|
|
for (class = 1; class < N_REG_CLASSES; class++)
|
|
|
|
|
{
|
|
|
|
|
int bad = 0;
|
|
|
|
|
for (regno = 0; regno < FIRST_PSEUDO_REGISTER && ! bad; regno++)
|
|
|
|
|
if (TEST_HARD_REG_BIT (reg_class_contents[class], regno)
|
|
|
|
|
&& TEST_HARD_REG_BIT (reg_class_contents[class], regno + n)
|
|
|
|
|
&& ! HARD_REGNO_MODE_OK (regno + n, m1))
|
|
|
|
|
bad = 1;
|
|
|
|
|
|
2002-06-13 18:20:02 +02:00
|
|
|
|
if (bad)
|
|
|
|
|
continue;
|
|
|
|
|
cost = REGISTER_MOVE_COST (m1, class, dest_class);
|
|
|
|
|
|
|
|
|
|
if ((reg_class_size[class] > best_size
|
|
|
|
|
&& (best_cost < 0 || best_cost >= cost))
|
|
|
|
|
|| best_cost > cost)
|
2002-05-26 14:01:40 +02:00
|
|
|
|
{
|
|
|
|
|
best_class = class;
|
|
|
|
|
best_size = reg_class_size[class];
|
|
|
|
|
best_cost = REGISTER_MOVE_COST (m1, class, dest_class);
|
|
|
|
|
}
|
1995-12-22 23:36:25 +01:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (best_size == 0)
|
|
|
|
|
abort ();
|
|
|
|
|
|
|
|
|
|
return best_class;
|
|
|
|
|
}
|
|
|
|
|
|
1999-02-03 21:11:56 +01:00
|
|
|
|
/* Return the number of a previously made reload that can be combined with
|
|
|
|
|
a new one, or n_reloads if none of the existing reloads can be used.
|
|
|
|
|
OUT, CLASS, TYPE and OPNUM are the same arguments as passed to
|
|
|
|
|
push_reload, they determine the kind of the new reload that we try to
|
|
|
|
|
combine. P_IN points to the corresponding value of IN, which can be
|
|
|
|
|
modified by this function.
|
|
|
|
|
DONT_SHARE is nonzero if we can't share any input-only reload for IN. */
|
2001-06-04 03:58:24 +02:00
|
|
|
|
|
1999-02-03 21:11:56 +01:00
|
|
|
|
static int
|
|
|
|
|
find_reusable_reload (p_in, out, class, type, opnum, dont_share)
|
|
|
|
|
rtx *p_in, out;
|
|
|
|
|
enum reg_class class;
|
|
|
|
|
enum reload_type type;
|
|
|
|
|
int opnum, dont_share;
|
|
|
|
|
{
|
|
|
|
|
rtx in = *p_in;
|
|
|
|
|
int i;
|
|
|
|
|
/* We can't merge two reloads if the output of either one is
|
|
|
|
|
earlyclobbered. */
|
|
|
|
|
|
|
|
|
|
if (earlyclobber_operand_p (out))
|
|
|
|
|
return n_reloads;
|
|
|
|
|
|
|
|
|
|
/* We can use an existing reload if the class is right
|
|
|
|
|
and at least one of IN and OUT is a match
|
|
|
|
|
and the other is at worst neutral.
|
1999-09-01 16:30:35 +02:00
|
|
|
|
(A zero compared against anything is neutral.)
|
1999-02-03 21:11:56 +01:00
|
|
|
|
|
|
|
|
|
If SMALL_REGISTER_CLASSES, don't use existing reloads unless they are
|
|
|
|
|
for the same thing since that can cause us to need more reload registers
|
|
|
|
|
than we otherwise would. */
|
1999-09-01 16:30:35 +02:00
|
|
|
|
|
1999-02-03 21:11:56 +01:00
|
|
|
|
for (i = 0; i < n_reloads; i++)
|
1999-09-12 16:54:56 +02:00
|
|
|
|
if ((reg_class_subset_p (class, rld[i].class)
|
|
|
|
|
|| reg_class_subset_p (rld[i].class, class))
|
1999-02-03 21:11:56 +01:00
|
|
|
|
/* If the existing reload has a register, it must fit our class. */
|
1999-09-12 16:54:56 +02:00
|
|
|
|
&& (rld[i].reg_rtx == 0
|
1999-02-03 21:11:56 +01:00
|
|
|
|
|| TEST_HARD_REG_BIT (reg_class_contents[(int) class],
|
1999-09-12 16:54:56 +02:00
|
|
|
|
true_regnum (rld[i].reg_rtx)))
|
|
|
|
|
&& ((in != 0 && MATCHES (rld[i].in, in) && ! dont_share
|
|
|
|
|
&& (out == 0 || rld[i].out == 0 || MATCHES (rld[i].out, out)))
|
|
|
|
|
|| (out != 0 && MATCHES (rld[i].out, out)
|
|
|
|
|
&& (in == 0 || rld[i].in == 0 || MATCHES (rld[i].in, in))))
|
|
|
|
|
&& (rld[i].out == 0 || ! earlyclobber_operand_p (rld[i].out))
|
1999-02-03 21:11:56 +01:00
|
|
|
|
&& (reg_class_size[(int) class] == 1 || SMALL_REGISTER_CLASSES)
|
1999-09-12 16:54:56 +02:00
|
|
|
|
&& MERGABLE_RELOADS (type, rld[i].when_needed, opnum, rld[i].opnum))
|
1999-02-03 21:11:56 +01:00
|
|
|
|
return i;
|
|
|
|
|
|
|
|
|
|
/* Reloading a plain reg for input can match a reload to postincrement
|
|
|
|
|
that reg, since the postincrement's value is the right value.
|
|
|
|
|
Likewise, it can match a preincrement reload, since we regard
|
|
|
|
|
the preincrementation as happening before any ref in this insn
|
|
|
|
|
to that register. */
|
|
|
|
|
for (i = 0; i < n_reloads; i++)
|
1999-09-12 16:54:56 +02:00
|
|
|
|
if ((reg_class_subset_p (class, rld[i].class)
|
|
|
|
|
|| reg_class_subset_p (rld[i].class, class))
|
1999-02-03 21:11:56 +01:00
|
|
|
|
/* If the existing reload has a register, it must fit our
|
|
|
|
|
class. */
|
1999-09-12 16:54:56 +02:00
|
|
|
|
&& (rld[i].reg_rtx == 0
|
1999-02-03 21:11:56 +01:00
|
|
|
|
|| TEST_HARD_REG_BIT (reg_class_contents[(int) class],
|
1999-09-12 16:54:56 +02:00
|
|
|
|
true_regnum (rld[i].reg_rtx)))
|
|
|
|
|
&& out == 0 && rld[i].out == 0 && rld[i].in != 0
|
1999-02-03 21:11:56 +01:00
|
|
|
|
&& ((GET_CODE (in) == REG
|
2000-07-28 19:46:18 +02:00
|
|
|
|
&& GET_RTX_CLASS (GET_CODE (rld[i].in)) == 'a'
|
1999-09-12 16:54:56 +02:00
|
|
|
|
&& MATCHES (XEXP (rld[i].in, 0), in))
|
2000-07-28 19:46:18 +02:00
|
|
|
|
|| (GET_CODE (rld[i].in) == REG
|
|
|
|
|
&& GET_RTX_CLASS (GET_CODE (in)) == 'a'
|
|
|
|
|
&& MATCHES (XEXP (in, 0), rld[i].in)))
|
1999-09-12 16:54:56 +02:00
|
|
|
|
&& (rld[i].out == 0 || ! earlyclobber_operand_p (rld[i].out))
|
1999-02-03 21:11:56 +01:00
|
|
|
|
&& (reg_class_size[(int) class] == 1 || SMALL_REGISTER_CLASSES)
|
1999-09-12 16:54:56 +02:00
|
|
|
|
&& MERGABLE_RELOADS (type, rld[i].when_needed,
|
|
|
|
|
opnum, rld[i].opnum))
|
1999-02-03 21:11:56 +01:00
|
|
|
|
{
|
|
|
|
|
/* Make sure reload_in ultimately has the increment,
|
|
|
|
|
not the plain register. */
|
|
|
|
|
if (GET_CODE (in) == REG)
|
1999-09-12 16:54:56 +02:00
|
|
|
|
*p_in = rld[i].in;
|
1999-02-03 21:11:56 +01:00
|
|
|
|
return i;
|
|
|
|
|
}
|
|
|
|
|
return n_reloads;
|
|
|
|
|
}
|
|
|
|
|
|
2000-08-21 15:46:47 +02:00
|
|
|
|
/* Return nonzero if X is a SUBREG which will require reloading of its
|
|
|
|
|
SUBREG_REG expression. */
|
|
|
|
|
|
|
|
|
|
static int
|
|
|
|
|
reload_inner_reg_of_subreg (x, mode)
|
|
|
|
|
rtx x;
|
|
|
|
|
enum machine_mode mode;
|
|
|
|
|
{
|
|
|
|
|
rtx inner;
|
|
|
|
|
|
|
|
|
|
/* Only SUBREGs are problematical. */
|
|
|
|
|
if (GET_CODE (x) != SUBREG)
|
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
|
|
inner = SUBREG_REG (x);
|
|
|
|
|
|
2001-06-04 03:58:24 +02:00
|
|
|
|
/* If INNER is a constant or PLUS, then INNER must be reloaded. */
|
|
|
|
|
if (CONSTANT_P (inner) || GET_CODE (inner) == PLUS)
|
2000-08-21 15:46:47 +02:00
|
|
|
|
return 1;
|
|
|
|
|
|
|
|
|
|
/* If INNER is not a hard register, then INNER will not need to
|
|
|
|
|
be reloaded. */
|
|
|
|
|
if (GET_CODE (inner) != REG
|
|
|
|
|
|| REGNO (inner) >= FIRST_PSEUDO_REGISTER)
|
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
|
|
/* If INNER is not ok for MODE, then INNER will need reloading. */
|
Use byte offsets in SUBREGs instead of words.
2001-04-03 Jakub Jelinek <jakub@redhat.com>
David S. Miller <davem@pierdol.cobaltmicro.com>
Andrew MacLeod <amacleod@redhat.com>
Use byte offsets in SUBREGs instead of words.
* alias.c (nonlocal_mentioned_p): Use subreg_regno function.
* caller-save.c (mark_set_regs): Change callers of subreg_hard_regno
to pass new argument.
(add_stored_regs): Use subreg_regno_offset function.
* calls.c (expand_call): For non-paradoxical SUBREG take endianess
into account.
(precompute_arguments): Use gen_lowpart_SUBREG.
* combine.c (try_combine): Replace explicit XEXP with SUBREG_REG.
(combine_simplify_rtx): Rework to use SUBREG_BYTE.
(simplify_set): Rework to use SUBREG_BYTE.
(expand_field_assignment): Use SUBREG_BYTE.
(make_extraction): Use SUBREG_BYTE.
(if_then_else_cond): Use SUBREG_BYTE.
(apply_distributive_law): Use SUBREG_BYTE and fixup subreg comments.
(gen_lowpart_for_combine): Compute full byte offset.
* cse.c (mention_regs): Use SUBREG_BYTE.
(remove_invalid_subreg_refs): Rework to use SUBREG_BYTE.
(canon_hash): Use SUBREG_BYTE.
(fold_rtx): Pass SUBREG_BYTE div UNITS_PER_WORD to operand_subword.
(gen_lowpart_if_possible): Formatting.
* dbxout.c (dbxout_symbol_location): Compute SUBREG hard regnos
correctly.
* dwarf2out.c (is_pseudo_reg): Fixup explicit XEXP into SUBREG_REG
(mem_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
(loc_descriptor): Fixup explicit XEXP into SUBREG_REG
* dwarfout.c (is_pseudo_reg): Fixup explicit XEXP into SUBREG_REG
(output_mem_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
(output_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
* emit-rtl.c (gen_rtx_SUBREG): New function, used to verify
certain invariants about SUBREGs the compiler creates.
(gen_lowpart_SUBREG): New function.
(subreg_hard_regno): New function to get the final register number.
(gen_lowpart_common): Use SUBREG_BYTE.
(gen_imagpart): Spacing nits.
(subreg_realpart_p): Use SUBREG_BYTE.
(gen_highpart): Use SUBREG_BYTE.
(subreg_lowpart_p): Always compute endian corrected goal offset,
even at the byte level, then compare against that.
(constant_subword): New function, pulled out all constant cases
from operand_subword and changed second argument name to offset.
(operand_subword): Detect non REG/SUBREG/CONCAT/MEM cases early
and call constant_subword to do the work. Return const0_rtx if
looking for a word outside of OP.
(operand_subword_force): Change second arg name to offset.
* expmed.c (store_bit_field): Use SUBREG_BYTE.
(store_split_bit_field): Use SUBREG_BYTE.
(extract_bit_field): Use SUBREG_BYTE.
(extract_split_bit_field): Use SUBREG_BYTE.
(expand_shift): Use SUBREG_BYTE.
* expr.c (store_expr, expand_expr): Use gen_lowpart_SUBREG.
* final.c (alter_subreg) Use subreg_hard_regno and SUBREG_BYTE.
* flow.c (set_noop_p): Use SUBREG_BYTE.
(mark_set_1): Remove ALTER_HARD_SUBREG. Use subreg_regno_offset instead.
* function.c (fixup_var_refs_1): Fixup explicit XEXP into a SUBREG_REG.
(fixup_memory_subreg): Use SUBREG_BYTE and remove byte endian
correction code.
(optimize_bit_field): Use SUBREG_BYTE.
(purge_addressof_1): Use SUBREG_BYTE.
(purge_single_hard_subreg_set): Use subreg_regno_offset function.
(assign_params): Mark arguments SUBREG_PROMOTED_VAR_P if they are
actually promoted by the caller and PROMOTE_FOR_CALLS_ONLY is true.
* gengenrtl.c (special_rtx): Add SUBREG.
* global.c (mark_reg_store): Use SUBREG_BYTE.
(set_preference): Rework to use subreg_regno_offset and SUBREG_BYTE.
* ifcvt (noce_emit_move_insn): Use SUBREG_BYTE.
* integrate.c (copy_rtx_and_substitute): Use SUBREG_BYTE and make sure
final byte offset is congruent to subreg's mode size.
(subst_constants): Use SUBREG_BYTE.
(mark_stores): Use subreg_regno_offset function.
* jump.c (rtx_renumbered_equal_p, true_regnum): Use subreg_regno_offset
function and SUBREG_BYTE.
* local-alloc.c (combine_regs): Use subreg_regno_offset function.
(reg_is_born): Use subreg_hard_regno.
* recog.c (valid_replace_rtx_1): Use SUBREG_BYTE and remove byte
endian correction code. Don't combine subregs unless resulting
offset aligns with type. Fix subreg constant extraction for DImode.
Simplify SUBREG of VOIDmode CONST_DOUBLE.
(general_operand): Remove dead mode_altering_drug code.
(indirect_operand): Use SUBREG_BYTE.
(constrain_operands): Use subreg_regno_offset function.
* reg-stack.c (get_true_reg): Use subreg_regno_offset function.
* regmove.c (regmove_optimize): Use SUBREG_BYTE.
(optimize_reg_copy_3): Use gen_lowpart_SUBREG.
* regs.h (REG_SIZE): Allow target to override.
(REGMODE_NATURAL_SIZE): New macro which target can override.
* reload.c (reload_inner_reg_of_subreg): subreg_regno should be used
on the entire subreg rtx.
(push_reload): Use SUBREG_BYTE in comments and code.
(find_dummy_reload): Use subreg_regno_offset. Only adjust offsets
for hard registers inside subregs.
(operands_match_p): Use subreg_regno_offset.
(find_reloads): Use SUBREG_BYTE and only advance offset for subregs
containing hard regs.
(find_reload_toplev): Use SUBREG_BYTE. Remove byte endian
corrections when fixing up MEM subregs.
(find_reloads_address_1): Use SUBREG_BYTE, subreg_regno, and
subreg_regno_offset where appropriate.
(find_reloads_subreg_address): Use SUBREG_BYTE. Remove
byte endian corrections when fixing up MEM subregs.
(subst_reloads): When combining two subregs, make sure final
offset is congruent to subreg's mode size.
(find_replacement): Use SUBREG_BYTE and subreg_regno_offset.
(refers_to_regno_for_reload_p): Use subreg_regno.
(reg_overlap_mentioned_for_reload_p): Use subreg_regno_offset.
* reload1.c (eliminate_regs) Use SUBREG_BYTE. Remove byte endian
correction code for memory subreg fixups.
(forget_old_reload_1): Use subreg_regno_offset.
(choose_reload_regs): Use subreg_regno.
(emit_input_reload_insns): Use SUBREG_BYTE.
(reload_combine_note_store): Use subreg_regno_offset.
(move2add_note_store): Use subreg_regno_offset.
* resource.c (update_live_status, mark_referenced_resources): Use
subreg_regno function.
(mark_set_resources): Use subreg_regno function.
* rtl.h (SUBREG_WORD): Rename to SUBREG_BYTE.
(subreg_regno_offset, subreg_regno): Define prototypes.
(subreg_hard_regno, constant_subword, gen_rtx_SUBREG): Newi functions.
(gen_lowpart_SUBREG): Add prototype.
* rtl.texi (subreg): Update to reflect new byte offset representation.
Add mentioning of the effect that BYTES_BIG_ENDIAN has on subregs now.
* rtlanal.c (refers_to_regno_p): Use subreg_regno.
(reg_overlap_mentioned_p): Use subreg_regno.
(replace_regs); Make sure final offset of combined subreg is
congruent to size of subreg's mode.
(subreg_regno_offset): New function.
(subreg_regno): New function.
* sched-vis.c (print_value): Change SUBREG_WORD to SUBREG_BYTE.
* sdbout.c (sdbout_symbol): Compute offset using alter_subreg.
* stmt.c (expand_anon_union_decl): Use gen_lowpart_SUBREG.
* tm.texi (ALTER_HARD_SUBREG): Remove, it is now dead.
(SUBREG_REGNO_OFFSET): Describe SUBREG_REGNO_OFFSET overrides.
* config/a29k/a29k.c (gpc_reg_operand): Use subreg_regno.
(a29k_get_reloaded_address): Use SUBREG_BYTE.
(print_operand): Use SUBREG_BYTE.
* config/alpha/alpha.c (print_operand_address): Use SUBREG_BYTE.
* config/arm/arm.c (arm_reload_in_hi): Use SUBREG_BYTE.
(arm_reload_out_hi): Use SUBREG_BYTE.
* config/d30v/d30v.c (d30v_split_double): Use subreg_regno_offset
instead of SUBREG_WORD.
(d30v_print_operand_memory_reference): Use subreg_regno_offset.
* config/dsp16xx/dsp16xx.md (extendqihi2, zero_extendqihi2): Fix
SUBREG creation to use byte offset.
* config/h8300/h8300.md (Unnamed HImode zero extraction and 16bit
inverted load insns): Fix explicit rtl subregs to use byte
offsets.
* config/i370/i370.md (cmpstrsi, movstrsi, mulsi3, divsi3,
udivsi3, umodsi3): Generate SUBREGs with byte offsets.
* config/i860/i860.c (single_insn_src_p): Use SUBREG_BYTE.
* config/i860/i860.md (mulsi3_big): Fixup explicit SUBREGs in rtl
to use byte offsets.
(unnamed fmlow.dd insn): Fixup SUBREGS to use byte offsets.
* config/i960/i960.md (extendhisi2): Generate SUBREGs with byte
offsets, also make sure it is congruent to SUBREG's mode size.
(extendqisi2, extendqihi2, zero_extendhisi2, zero_extendqisi2,
unnamed ldob insn): Generate SUBREGs with byte offset.
(zero_extendqihi2): SUBREG's are byte offsets.
* config/m68hc11/m68hc11.c (m68hc11_gen_lowpart): Use SUBREG_BYTE.
(m68hc11_gen_highpart): Use SUBREG_BYTE.
* config/m68k/m68k.md (zero_extendhisi2, zero_extendqihi2,
zero-extendqisi2): Generate SUBREGs with byte offset.
(umulsidi3, mulsidi3, subreghi1ashrdi_const32,
subregsi1ashrdi_const32, subreg1lshrdi_const32): Fixup explicit
subregs in rtl to use byte offsets.
* config/m88k/m88k.md (extendsidi2): fixup subregs to use byte offset.
* config/mips/mips.c (mips_move_1word): Use subreg_regno_offset.
(mips_move_2words): Use subreg_regno_offset.
(mips_secondary_reload_class): Use subreg_regno_offset.
* config/mips/mips.md (DImode plus, minus, move, and logical op
splits): Fixup explicit subregs in rtl to use byte offsets.
* config/mn10200/mn10200.c (print_operand): Use subreg_regno function.
* config/mn10300/mn10300.c (print_operand): Use subreg_regno function.
* config/ns32k/ns32k.md (udivmoddisi4): Fix explicit subregs in
rtl to use byte offsets.
* config/pa/pa.c (emit_move_sequence): Use SUBREG_BYTE.
* config/pa/pa.md (floatunssisf2, floatunssidf2, mulsi3): fix explicit
subregs to use byte offsets.
* config/pdp11/pdp11.md (zero_extendhisi2, modhi3, modhi3+1):
Fixup explicit subregs in rtl to use byte offsets.
* config/romp/romp.c (memory_offset_in_range_p): Use SUBREG_BYTE
and remove byte endian correction code.
* config/sh/sh.c (output_movedouble): Use subreg_regno.
(gen_ashift_hi): Use SUBREG_BYTE.
(regs_used): Use subreg_regno_offset.
(machine_dependent_reorg): Use subreg_regno_offset.
* config/sh/sh.h (INDEX_REGISTER_RTX_P): Use SUBREG_BYTE.
* config/sh/sh.md (DImode and DFmode move splits): Use subreg_regno.
(movdf_i4): Subregs are byte offsets now.
* config/sparc/sparc.c (ultra_find_type): Use SUBREG_BYTE.
* config/sparc/sparc.h (ALTER_HARD_SUBREG): Removed.
(REGMODE_NATURAL_SIZE): Override.
(REG_SIZE): For SUBREG check float mode on SUBREG_REG's mode.
* config/sparc/sparc.md (TFmode move splits): Generate SUBREGs
with byte offsets.
(zero_extendhisi2, zero_extendqidi2_insn, extendhisi2,
extendqihi2, sign_extendqihi2_insn, sign_extendqisi2_insn,
extendqidi2): Generate SUBREGs with byte offsets, also make sure
it is congruent to SUBREG's mode size.
(smulsi3_highpart_v8plus): Fix explicit subregs in rtl to use byte
offsets.
(cmp_siqi_trunc, cmp_siqi_trunc_set, cmp_diqi_trunc,
cmp_diqi_trunc_set, lshrdi3_v8plus+1, lshrdi3_v8plus+2,
lshrdi3_v8plus+3, lshrdi3_v8plus+4): Use proper
SUBREG_BYTE offset for non-paradoxical subregs in patterns.
* config/v850/v850.c (print_operand, output_move_double): Use
subreg_regno function.
Co-Authored-By: Andrew MacLeod <amacleod@redhat.com>
Co-Authored-By: David S. Miller <davem@pierdol.cobaltmicro.com>
From-SVN: r41058
2001-04-03 17:06:12 +02:00
|
|
|
|
if (! HARD_REGNO_MODE_OK (subreg_regno (x), mode))
|
2000-08-21 15:46:47 +02:00
|
|
|
|
return 1;
|
|
|
|
|
|
|
|
|
|
/* If the outer part is a word or smaller, INNER larger than a
|
|
|
|
|
word and the number of regs for INNER is not the same as the
|
|
|
|
|
number of words in INNER, then INNER will need reloading. */
|
|
|
|
|
return (GET_MODE_SIZE (mode) <= UNITS_PER_WORD
|
|
|
|
|
&& GET_MODE_SIZE (GET_MODE (inner)) > UNITS_PER_WORD
|
|
|
|
|
&& ((GET_MODE_SIZE (GET_MODE (inner)) / UNITS_PER_WORD)
|
|
|
|
|
!= HARD_REGNO_NREGS (REGNO (inner), GET_MODE (inner))));
|
|
|
|
|
}
|
|
|
|
|
|
1993-03-29 13:27:52 +02:00
|
|
|
|
/* Record one reload that needs to be performed.
|
1992-02-28 11:23:25 +01:00
|
|
|
|
IN is an rtx saying where the data are to be found before this instruction.
|
|
|
|
|
OUT says where they must be stored after the instruction.
|
|
|
|
|
(IN is zero for data not read, and OUT is zero for data not written.)
|
|
|
|
|
INLOC and OUTLOC point to the places in the instructions where
|
|
|
|
|
IN and OUT were found.
|
1993-03-29 13:27:52 +02:00
|
|
|
|
If IN and OUT are both non-zero, it means the same register must be used
|
|
|
|
|
to reload both IN and OUT.
|
|
|
|
|
|
1992-02-28 11:23:25 +01:00
|
|
|
|
CLASS is a register class required for the reloaded data.
|
|
|
|
|
INMODE is the machine mode that the instruction requires
|
|
|
|
|
for the reg that replaces IN and OUTMODE is likewise for OUT.
|
|
|
|
|
|
|
|
|
|
If IN is zero, then OUT's location and mode should be passed as
|
|
|
|
|
INLOC and INMODE.
|
|
|
|
|
|
|
|
|
|
STRICT_LOW is the 1 if there is a containing STRICT_LOW_PART rtx.
|
|
|
|
|
|
|
|
|
|
OPTIONAL nonzero means this reload does not need to be performed:
|
|
|
|
|
it can be discarded if that is more convenient.
|
|
|
|
|
|
1993-03-29 13:27:52 +02:00
|
|
|
|
OPNUM and TYPE say what the purpose of this reload is.
|
|
|
|
|
|
1992-02-28 11:23:25 +01:00
|
|
|
|
The return value is the reload-number for this reload.
|
|
|
|
|
|
|
|
|
|
If both IN and OUT are nonzero, in some rare cases we might
|
|
|
|
|
want to make two separate reloads. (Actually we never do this now.)
|
|
|
|
|
Therefore, the reload-number for OUT is stored in
|
|
|
|
|
output_reloadnum when we return; the return value applies to IN.
|
|
|
|
|
Usually (presently always), when IN and OUT are nonzero,
|
|
|
|
|
the two reload-numbers are equal, but the caller should be careful to
|
|
|
|
|
distinguish them. */
|
|
|
|
|
|
2001-09-05 07:54:09 +02:00
|
|
|
|
int
|
1992-02-28 11:23:25 +01:00
|
|
|
|
push_reload (in, out, inloc, outloc, class,
|
1993-03-29 13:27:52 +02:00
|
|
|
|
inmode, outmode, strict_low, optional, opnum, type)
|
1999-02-03 21:11:56 +01:00
|
|
|
|
rtx in, out;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
rtx *inloc, *outloc;
|
|
|
|
|
enum reg_class class;
|
|
|
|
|
enum machine_mode inmode, outmode;
|
|
|
|
|
int strict_low;
|
|
|
|
|
int optional;
|
1993-03-29 13:27:52 +02:00
|
|
|
|
int opnum;
|
|
|
|
|
enum reload_type type;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
{
|
2001-10-11 05:16:15 +02:00
|
|
|
|
int i;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
int dont_share = 0;
|
1995-08-31 14:30:38 +02:00
|
|
|
|
int dont_remove_subreg = 0;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
rtx *in_subreg_loc = 0, *out_subreg_loc = 0;
|
1994-02-10 15:04:07 +01:00
|
|
|
|
int secondary_in_reload = -1, secondary_out_reload = -1;
|
1995-04-01 15:50:50 +02:00
|
|
|
|
enum insn_code secondary_in_icode = CODE_FOR_nothing;
|
|
|
|
|
enum insn_code secondary_out_icode = CODE_FOR_nothing;
|
1993-03-29 13:27:52 +02:00
|
|
|
|
|
1992-02-28 11:23:25 +01:00
|
|
|
|
/* INMODE and/or OUTMODE could be VOIDmode if no mode
|
|
|
|
|
has been specified for the operand. In that case,
|
|
|
|
|
use the operand's mode as the mode to reload. */
|
|
|
|
|
if (inmode == VOIDmode && in != 0)
|
|
|
|
|
inmode = GET_MODE (in);
|
|
|
|
|
if (outmode == VOIDmode && out != 0)
|
|
|
|
|
outmode = GET_MODE (out);
|
|
|
|
|
|
1999-09-01 16:30:35 +02:00
|
|
|
|
/* If IN is a pseudo register everywhere-equivalent to a constant, and
|
1992-02-28 11:23:25 +01:00
|
|
|
|
it is not in a hard register, reload straight from the constant,
|
|
|
|
|
since we want to get rid of such pseudo registers.
|
|
|
|
|
Often this is done earlier, but not always in find_reloads_address. */
|
|
|
|
|
if (in != 0 && GET_CODE (in) == REG)
|
|
|
|
|
{
|
2001-10-11 05:16:15 +02:00
|
|
|
|
int regno = REGNO (in);
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
|
|
|
|
if (regno >= FIRST_PSEUDO_REGISTER && reg_renumber[regno] < 0
|
|
|
|
|
&& reg_equiv_constant[regno] != 0)
|
|
|
|
|
in = reg_equiv_constant[regno];
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Likewise for OUT. Of course, OUT will never be equivalent to
|
|
|
|
|
an actual constant, but it might be equivalent to a memory location
|
|
|
|
|
(in the case of a parameter). */
|
|
|
|
|
if (out != 0 && GET_CODE (out) == REG)
|
|
|
|
|
{
|
2001-10-11 05:16:15 +02:00
|
|
|
|
int regno = REGNO (out);
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
|
|
|
|
if (regno >= FIRST_PSEUDO_REGISTER && reg_renumber[regno] < 0
|
|
|
|
|
&& reg_equiv_constant[regno] != 0)
|
|
|
|
|
out = reg_equiv_constant[regno];
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* If we have a read-write operand with an address side-effect,
|
|
|
|
|
change either IN or OUT so the side-effect happens only once. */
|
|
|
|
|
if (in != 0 && out != 0 && GET_CODE (in) == MEM && rtx_equal_p (in, out))
|
[multiple changes]
Mon Jul 9 06:41:07 2001 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
* emit-rtl.c (adjust_address_nv, replace_equiv_address_nv): New fcns.
(operand_subword): Use them.
(change_address_1): Renamed from change_address; new arg VALIDATE.
* expr.h: Reflect above changes; change_address now macro.
* alias.c (canon_rtx): Use replace_equiv_address_nv instead of
making MEM.
* cselib.c (add_mem_for_addr): Likewise.
* expr.c (protect_from_queue, emit_move_insn_1): Likewise.
* regmove.c (try_apply_stack_adjustment): Likewise.
* reload.c (push_reload, make_memloc): Likewise.
* reload1.c (eliminate_regs): Likewise.
* simplify-rtx.c (simplify_replace_rtx): Likewise.
* caller-save.c (setup_save_areas): Use adjust_address_nv instead of
adjust_addess.
* combine.c (make_extraction, simplify_shift_const): Likewise.
(gen_lowpart_for_combine): Likewise.
* cse.c (gen_lowpart_if_possible): Likewise.
* function.c (fixup_var_refs_1, purge_addressof_1): Likewise.
* expr.c (expand_expr, case COMPONENT_REF): Likewise.
* optabs.c (gen_move_insn): Likewise.
* reload1.c (alter_reg): Likewise.
* simplify-rtx.c (simplify_subreg): Likewise.
* stmt.c (expand_anon_union_decl): Likewise.
* recog.c (validate_replace_rtx_1): Likewise.
(expr.h): Include.
* Makefile.in (recog.o): Add $(EXPR_H).
* explow.c (stabilize): Call replace_equiv_address.
* expr.c (move_by_pieces_1, store_by_pieces_2): Likewise.
* final.c (alter_subreg): OFFSET is HOST_WIDE_INT.
2001-07-09 Bo Thorsen <bo@suse.co.uk>
* config/i386/unix.h (ASM_OUTPUT_MI_THUNK): Fix x86-64 vtable support.
2001-07-09 Neil Booth <neil@daikokuya.demon.co.uk>
* final.c (output_addr_const): Use target opening and
closing parentheses.
* target-def.h: Define TARGET_ASM_OPEN_PAREN, TARGET_ASM_CLOSE_PAREN
defaults, add to TARGET_ASM_OUT.
* target.h (struct gcc_target): Add open_paren and close_paren.
* doc/md.texi: Update.
* doc/tm.texi: Document TARGET_ASM_FUNCTION_END_PROLOGUE,
TARGET_ASM_FUNCTION_BEGIN_EPILOGUE, TARGET_ASM_OPEN_PAREN and
TARGET_ASM_CLOSE_PAREN.
* config/i386/i386.c (TARGET_ASM_OPEN_PAREN, TARGET_ASM_CLOSE_PAREN):
Override.
* config/pdp11/pdp11.c (TARGET_ASM_OPEN_PAREN, TARGET_ASM_CLOSE_PAREN):
Override.
* config/1750a/1750a.h (ASM_OPEN_PAREN, ASM_CLOSE_PAREN): Remove.
* config/a29k/a29k.h: Similarly.
* config/alpha/alpha.h: Similarly.
* config/arc/arc.h: Similarly.
* config/arm/aof.h: Similarly.
* config/arm/aout.h: Similarly.
* config/avr/avr.h: Similarly.
* config/c4x/c4x.h: Similarly.
* config/clipper/clipper.h: Similarly.
* config/convex/convex.h: Similarly.
* config/d30v/d30v.h: Similarly.
* config/dsp16xx/dsp16xx.h: Similarly.
* config/elxsi/elxsi.h: Similarly.
* config/fr30/fr30.h: Similarly.
* config/h8300/h8300.h: Similarly.
* config/i370/i370.h: Similarly.
* config/i386/i386.h: Similarly.
* config/i860/i860.h: Similarly.
* config/i960/i960.h: Similarly.
* config/ia64/ia64.h: Similarly.
* config/m32r/m32r.h: Similarly.
* config/m68hc11/m68hc11.h: Similarly.
* config/m68k/m68k.h: Similarly.
* config/m88k/m88k.h: Similarly.
* config/mcore/mcore.h: Similarly.
* config/mips/mips.h: Similarly.
* config/mn10200/mn10200.h: Similarly.
* config/mn10300/mn10300.h: Similarly.
* config/ns32k/ns32k.h: Similarly.
* config/pa/pa.h: Similarly.
* config/pdp11/pdp11.h: Similarly.
* config/pj/pj.h: Similarly.
* config/romp/romp.h: Similarly.
* config/rs6000/rs6000.h: Similarly.
* config/sh/sh.h: Similarly.
* config/sparc/sparc.h: Similarly.
* config/v850/v850.h: Similarly.
* config/vax/vax.h: Similarly.
* config/we32k/we32k.h: Similarly.
2001-07-09 Joseph S. Myers <jsm28@cam.ac.uk>
* doc/c-tree.texi: Document representation of attributes.
2001-07-08 Joseph S. Myers <jsm28@cam.ac.uk>
* doc/tm.texi: Update some places for the rename of target to
targetm. Fix typo.
2001-07-08 Joseph S. Myers <jsm28@cam.ac.uk>
* target.h (struct gcc_target): Add insert_attributes.
* target-def.h (TARGET_INSERT_ATTRIBUTES): Define.
(TARGET_INITIALIZER): Update.
* tree.c, tree.h (default_insert_attributes): New function.
Update comments on other default functions to refer to targetm,
not target.
* doc/tm.texi (INSERT_ATTRIBUTES): Update to document
TARGET_INSERT_ATTRIBUTES.
(SET_DEFAULT_DECL_ATTRIBUTES): Remove.
* c-common.c (decl_attributes): Use targetm.insert_attributes.
Don't use PRAGMA_INSERT_ATTRIBUTES.
* Makefile.in (c-common.o): Depend on $(TARGET_H).
* c-decl.c (start_decl, start_function): Don't call
SET_DEFAULT_DECL_ATTRIBUTES.
* config/c4x/c4x.h (SET_DEFAULT_DECL_ATTRIBUTES): Don't define.
* config/c4x/c4x-protos.h (c4x_set_default_attributes): Don't
declare.
* config/c4x/c4x.c (TARGET_INSERT_ATTRIBUTES): Define.
(c4x_check_attribute): Avoid modifying attribute list itself.
(c4x_set_default_attributes): Rename to c4x_insert_attributes.
Make static.
* config/sh/sh.h (PRAGMA_INSERT_ATTRIBUTES): Don't define.
* config/sh/sh-protos.h (sh_pragma_insert_attributes): Don't
declare.
* config/sh/sh.c (TARGET_INSERT_ATTRIBUTES): Define.
(sh_pragma_insert_attributes): Rename to sh_insert_attributes.
Make static.
* config/v850/v850.h (SET_DEFAULT_DECL_ATTRIBUTES): Don't define.
* config/v850/v850-protos.h (v850_set_default_decl_attr): Don't
declare.
* config/v850/v850.c (TARGET_INSERT_ATTRIBUTES): Define.
(v850_set_default_decl_attr): Rename to v850_insert_attributes.
Adjust parameters. Make static.
2001-07-08 Joseph S. Myers <jsm28@cam.ac.uk>
* c-common.c (decl_attributes): Only take a single attributes
parameter.
* c-common.h (decl_attributes): Update prototype.
* c-decl.c (start_decl, start_function): Only take a single
attributes parameter. Update calls to decl_attributes.
(finish_struct, finish_enum): Update calls to decl_attributes.
(push_parm_decl): Expect unified list of attributes. Update call
to decl_attributes.
* c-parse.in (fndef, initdcl, notype_initdcl, nested_function,
notype_nested_function, component_declarator,
component_notype_declarator, label): Update calls to
decl_attributes.
(absdcl_maybe_attribute, parm, firstparm, myparm): Unify attribute
lists that are passed to push_parm_decl.
* c-tree.h (start_function, start_decl): Update prototypes.
* config/sh/sh-protos.h, config/sh/sh.c
(sh_pragma_insert_attributes): Only take a single attributes
parameter.
* config/sh/sh.h (PRAGMA_INSERT_ATTRIBUTES): Likewise.
* doc/tm.texi (INSERT_ATTRIBUTES): Update.
* objc/objc-act.c (define_decl, generate_objc_symtab_decl,
build_module_descriptor, generate_static_references,
generate_strings, build_selector_translation_table,
generate_descriptor_table, generate_protocols,
generate_ivars_list, generate_dispatch_table,
generate_protocol_list, generate_category,
generate_shared_structures, really_start_method, add_objc_decls,
generate_classref_translation_entry): Update calls to start_decl
and start_function.
(build_tmp_function_decl, start_method_def): Unify attribute lists
that are passed to push_parm_decl.
2001-07-08 Neil Booth <neil@daikokuya.demon.co.uk>
* final.c (no_asm_to_stream): New.
(final_scan_insn): Use target structures for prologue ends
and epilogue starts.
* output.h (no_asm_to_stream): New.
* target-def.h (TARGET_ASM_FUNCTION_END_PROLOGUE,
TARGET_ASM_FUNCTION_BEGIN_EPILOGUE): New.
(TARGET_ASM_OUT): Update.
* target.h (struct gcc_target): New members function_end_prologue
and function_begin_epilogue.
* config/1750/1750.h (ASM_OUTPUT_FUNNAM): Delete as unused.
* config/alpha/alpha-protos.h (output_end_prologue): Delete.
* config/alpha/alpha.c (output_end_prologue): Rename to
alpha_output_function_end_prologue. Use in target struct
and make static.
* config/alpha/alpha.h (FUNCTION_END_PROLOGUE): Delete.
* config/ia64/ia64-protos.h (ia64_output_end_prologue): Delete.
* config/ia64/ia64.c (ia64_output_end_prologue): Rename to
ia64_output_function_end_prologue. Use in target struct
and make static.
(ia64_function_prologue, ia64_funciton_epilogue): Rename
mistyped prototypes.
* config/ia64/ia64.h (FUNCTION_END_PROLOGUE): Delete.
* config/m88k/m88k-protos.h (m88k_end_prologue, m88k_begin_epilogue):
Delete.
* config/m88k/m88k.c (m88k_end_prologue, m88k_begin_epilogue): Rename
an use in target struct, make static.
* config/ia64/ia64.h (FUNCTION_END_PROLOGUE, FUNCTION_BEGIN_EPILOGUE):
Delete.
2001-07-08 Richard Henderson <rth@redhat.com>
* stmt.c (emit_case_nodes): Convert modes properly in low+high test.
2001-07-08 Richard Henderson <rth@redhat.com>
* config/i386/i386.md: Remove constraints strings from define_split
and define_peephole2 patterns.
(eh_return_si, eh_return_di): Split eh_return_1 for modes.
(eh_return): Use them.
2001-07-08 Richard Henderson <rth@redhat.com>
* doc/tm.texi (Exception Handling): New subnode of Stack and Calling.
Document MD_FALLBACK_FRAME_STATE_FOR.
2001-07-07 Stephane Carrez <Stephane.Carrez@worldnet.fr>
* config/m68hc11/m68hc11.c (m68hc11_initial_elimination_offset):
Take into account m68hc11_sp_correction for FRAME_POINTER_REGNUM
elimination.
* config/m68hc11/m68hc11.h (STARTING_FRAME_OFFSET): Use 0.
2001-07-07 Nick Clifton <nickc@cambridge.redhat.com>
* config/ia64/sysv4.h (ASM_OUTPUT_LABELREF): Append # to end
of the label inside NAME as opposed to just the end of NAME.
2001-07-07 Neil Booth <neil@daikokuya.demon.co.uk>
* config/alpha/alpha-protos.h (vms_valid_decl_attribute_p): Delete.
* config/alpha/alpha.c (alpha_init_machine_status,
alpha_mark_machine_status, alpha_free_machine_status): Delete.
(TARGET_VALID_DECL_ATTRIBUTE): Define for VMS.
(vms_valid_decl_attribute_p): Make static, conditionally compile.
* config/alpha/alpha.h (VALID_MACHINE_DECL_ATTRIBUTE): Delete.
2001-07-06 Stan Shebs <shebs@apple.com>
* target.h (targetm): Rename global from "target", so as not to
conflict with local variables.
* c-decl.c: Ditto.
* c-typeck.c: Ditto.
* final.c: Ditto.
* tree.c: Ditto.
* cp/decl.c: Ditto.
* cp/decl2.c: Ditto.
* cp/typeck.c: Ditto.
* 1750a/1750a.c: Ditto.
* a29k/a29k.c: Ditto.
* arc/arc.c: Ditto.
* arm/arm.c: Ditto.
* avr/avr.c: Ditto.
* clipper/clipper.c: Ditto.
* convex/convex.c: Ditto.
* d30v/d30v.c: Ditto.
* dsp16xx/dsp16xx.c: Ditto.
* elxsi/elxsi.c: Ditto.
* fr30/fr30.c: Ditto.
* h8300/h8300.c: Ditto.
* i370/i370.c: Ditto.
* i386/i386.c: Ditto.
* i860/i860.c: Ditto.
* i960/i960.c: Ditto.
* ia64/ia64.c: Ditto.
* m32r/m32r.c: Ditto.
* m68hc11/m68hc11.c: Ditto.
* m68k/m68k.c: Ditto.
* m88k/m88k.c: Ditto.
* mips/mips.c: Ditto.
* ns32k/ns32k.c: Ditto.
* pa/pa.c: Ditto.
* pdp11/pdp11.c: Ditto.
* romp/romp.c: Ditto.
* rs6000/rs6000.c: Ditto.
* sh/sh.c: Ditto.
* sparc/sparc.c: Ditto.
* vax/vax.c: Ditto.
* we32k/we32k.c: Ditto.
* doc/tm.texi: Update the manual to match.
2001-07-06 Richard Henderson <rth@redhat.com>
* except.h (MUST_USE_SJLJ_EXCEPTIONS): Examine the value of
DWARF2_UNWIND_INFO not just whether it is defined.
2001-07-06 Diego Novillo <dnovillo@redhat.com>
* combine.c (combine_simplify_rtx): Also recompute 'mode' if the
call to simplify_binary_operation returns a new pattern.
2001-07-06 Roman Lechtchinsky <rl@cs.tu-berlin.de>
* glimits.h (__SHRT_MAX__): New.
(SHRT_MIN, USHRT_MAX): Define in terms of SHRT_MAX.
(SHRT_MAX): Define in terms of __SHRT_MAX__.
2001-07-06 Jan van Male <jan.vanmale@fenk.wau.nl>
* alias.c (base_alias_check): Cast GET_MODE_UNIT_SIZE to int to
avoid warnings.
2001-07-06 Richard Henderson <rth@redhat.com>
* bitmap.c (bitmap_release_memory): Move adjacent to the
allocation functions.
(bitmap_first_set_bit, bitmap_last_set_bit): Streamline knowing
the implementation. Binary search for the set bit.
(bitmap_union_of_diff): Allocate the temporary on the stack
instead of using xmalloc.
2001-07-06 Richard Henderson <rth@redhat.com>
* genrecog.c (validate_pattern): Warn for constraints in
define_{expand,split,peephole2}. Remove strict_low_part
before looking up match_dup.
2001-07-06 DJ Delorie <dj@redhat.com>
* doc/gcc.texi (Makefile): Rename to be a more general purpose
chapter about various build hints and history. Add section
talking about the various types of native and cross builds.
2001-07-06 Neil Booth <neil@daikokuya.demon.co.uk>
* Makefile.in (final.o): Depend on target.h.
* final.c: Include target.h.
(default_function_pro_epilogue): New.
(final_start_function): Use target structure for function prologues.
(final_end_function): Use target structure for function epilogues.
* fold-const.c (real_hex_to_f): Constify s and p.
* output.h (default_function_pro_epilogue): New.
* real.h (real_hex_to_f): Update prototype.
* target-def.h (TARGET_ASM_FUNCTION_PROLOGUE,
TARGET_ASM_FUNCTION_EPILOGUE, TARGET_ASM_OUT): New.
(TARGET_INITIALIZER): Update.
* target.h (gcc_target): Add struct asm_out.
* doc/tm.texi: Update.
config:
Update each arch to use TARGET_ASM_FUNCTION_PROLOGUE and
TARGET_ASM_FUNCTION_EPILOGUE. Move macro code to functions
in cpu/cpu.c, or rename old functions consistently. Take
a HOST_WIDE INT not an int as the SIZE parameter. Remove now
redundant macros and prototypes. Make new functions static.
* 1750a/1750a.c: Similarly.
* 1750a/1750a.h: Similarly.
* a29k/a29k-protos.h: Similarly.
* a29k/a29k.c: Similarly.
* a29k/a29k.h: Similarly.
* arc/arc-protos.h: Similarly.
* arc/arc.c: Similarly.
* arc/arc.h: Similarly.
* arm/arm-protos.h: Similarly.
* arm/arm.c: Similarly.
* arm/arm.h: Similarly.
* avr/avr-protos.h: Similarly.
* avr/avr.c: Similarly.
* avr/avr.h: Similarly.
* clipper/clipper-protos.h: Similarly.
* clipper/clipper.c: Similarly.
* clipper/clipper.h: Similarly.
* convex/convex.c: Similarly.
* convex/convex.h: Similarly.
* d30v/d30v-protos.h: Similarly.
* d30v/d30v.c: Similarly.
* d30v/d30v.h: Similarly.
* d30v/d30v.md: Similarly.
* dsp16xx/dsp16xx-protos.h: Similarly.
* dsp16xx/dsp16xx.c: Similarly.
* dsp16xx/dsp16xx.h: Similarly.
* elxsi/elxsi.c: Similarly.
* elxsi/elxsi.h: Similarly.
* fr30/fr30.c: Similarly.
* fr30/fr30.md: Similarly.
* h8300/h8300-protos.h: Similarly.
* h8300/h8300.c: Similarly.
* h8300/h8300.h: Similarly.
* i370/i370-protos.h: Similarly.
* i370/i370.c: Similarly.
* i370/i370.h: Similarly.
* i386/i386.c: Similarly.
* i386/osf1elf.h: Similarly.
* i386/osfrose.h: Similarly.
* i860/i860-protos.h: Similarly.
* i860/i860.c: Similarly.
* i860/i860.h: Similarly.
* i960/i960-protos.h: Similarly.
* i960/i960.c: Similarly.
* i960/i960.h: Similarly.
* ia64/ia64-protos.h: Similarly.
* ia64/ia64.c: Similarly.
* ia64/ia64.h: Similarly.
* m32r/m32r-protos.h: Similarly.
* m32r/m32r.c: Similarly.
* m32r/m32r.h: Similarly.
* m68hc11/m68hc11-protos.h: Similarly.
* m68hc11/m68hc11.c: Similarly.
* m68hc11/m68hc11.h: Similarly.
* m68k/crds.h: Similarly.
* m68k/dpx2.h: Similarly.
* m68k/m68k-protos.h: Similarly.
* m68k/m68k.c: Similarly.
* m68k/m68k.h: Similarly.
* m68k/news.h: Similarly.
* m88k/m88k-protos.h: Similarly.
* m88k/m88k.c: Similarly.
* m88k/m88k.h: Similarly.
* mips/mips-protos.h: Similarly.
* mips/mips.c: Similarly.
* mips/mips.h: Similarly.
* ns32k/merlin.h: Similarly.
* ns32k/ns32k.c: Similarly.
* ns32k/ns32k.h: Similarly.
* ns32k/tek6000.h: Similarly.
* pa/pa-protos.h: Similarly.
* pa/pa.c: Similarly.
* pa/pa.h: Similarly.
* pdp11/2bsd.h: Similarly.
* pdp11/pdp11-protos.h: Similarly.
* pdp11/pdp11.c: Similarly.
* pdp11/pdp11.h: Similarly.
* romp/romp-protos.h: Similarly.
* romp/romp.c: Similarly.
* romp/romp.h: Similarly.
* rs6000/rs6000-protos.h: Similarly.
* rs6000/rs6000.c: Similarly.
* rs6000/rs6000.h: Similarly.
* rs6000/sysv4.h: Similarly.
* sh/sh-protos.h: Similarly.
* sh/sh.c: Similarly.
* sh/sh.h: Similarly.
* sparc/sparc-protos.h: Similarly.
* sparc/sparc.c: Similarly.
* sparc/sparc.h: Similarly.
* vax/vax.c: Similarly.
* vax/vax.h: Similarly.
* vax/vms.h: Similarly.
* we32k/we32k.c: Similarly.
* we32k/we32k.h: Similarly.
Fri Jul 6 11:47:59 2001 Jeffrey A Law (law@cygnus.com)
* basic-block.h (first_insn_after_basic_block_note): Declare.
* flow.c (first_insn_after_basic_block_note): Define. Moved
from...
* ssa.c (first_insn_after_basic_block_note): Remove.
* ssa-dce.c (find_inherently_necessary): Consider BARRIERs
necessary.
(ssa_eliminate_dead_code): Properly update the CFG and PHI
nodes when we find a dead conditional branch. Insert BARRIERs
after any blocks with no successors, but which do not have
any BARRIERs.
2001-07-06 Zack Weinberg <zackw@stanford.edu>
* varray.c (varray_check_failed): Use internal_error.
2001-07-05 Andrew Haley <aph@redhat.com>
* Makefile.in (LIB2_DIVMOD_FUNCS): New.
(LIB2FUNCS): Move divmod functions to LIB2_DIVMOD_FUNCS.
* mklibgcc.in: Compile LIB2_DIVMOD_FUNCS.
2001-07-02 Jason Merrill <jason_merrill@redhat.com>
* dwarf2out.c (mem_loc_descriptor): Only look through a constant pool
reference if the target constant is also a SYMBOL_REF.
2001-07-05 Eric Christopher <echristo@redhat.com>
* config/mips/mips.h (MASK_MIPS3900): Remove.
(MASK_MIPS16,MASK_NO_CHECK_ZERO_DIV,MASK_CHECK_RANGE_DIV,
MASK_UNINIT_CONST_IN_RODATA): Change for 3900 mask removal.
(TARGET_MIPS3900): Change to use mips_arch.
(TARGET_MIPS4000): New.
(TARGET_MIPS4100): New.
(TARGET_MIPS4300): New.
(TARGET_SWITCHES): Change 3900 and 4650 options to NULL.
(SUBTARGET_TARGET_OPTIONS): Add -march. Change help text
for -mipsX.
(GENERATE_BRANCHLIKELY): Move TARGET_MIPS3900.
(ISA_HAS_BRANCHLIKELY): To here.
(CC1_CPU_SPEC): New.
(CC1_SPEC): Use here. Remove 4650 and 3900 options.
(mips_arch_string): Declare.
(mips_arch): Declare.
(TARGET_OPTIONS): Add -march and -mtune.
* config/mips/mips.c (mips_arch_string): New.
(mips_arch): New.
(override_options): Handle -march for codegen and -mtune
for scheduling. Use mips_arch. Move tx39 target default here.
(mips_parse_cpu): Move error message to override_options.
* config/mips/r3900.h (TARGET_DEFAULT): Remove.
* config/mips/mips.md: Use TARGET_MIPS4000 and TARGET_MIPS4300.
* doc/invoke.texi (Option Summary): Add -march and -mtune entries.
(MIPS Options): Ditto. Change mcpu entry to historical text.
2001-07-05 H.J. Lu (hjl@gnu.org)
* config/mips/mips.c (mips_parse_cpu): New function to parse
-march=*/-mcpu=*.
2001-07-05 Jim Wilson <wilson@redhat.com>
* config/ia64/lib1funcs.asm: Revert 2001-07-02 change.
* config/ia64/t-ia64: Likewise.
(LIB1ASMFUNCS): Update comment.
2001-07-05 David Edelsohn <edelsohn@gnu.org>
* doc/install.texi (Install GCC: Binaries): Fix typo.
2001-07-04 Stephane Carrez <Stephane.Carrez@worldnet.fr>
* config/m68hc11/m68hc11.md ("*ashlsi3"): Operand 1 can be a memory
reference using the stack pointer, adjust it since we push Y
temporarily.
("*ashrsi3"): Likewise.
("*lshrsi3"): Likewise.
2001-07-05 Stephane Carrez <Stephane.Carrez@worldnet.fr>
* config/m68hc11/m68hc11.h (RETURN_ADDR_RTX): Fix return address
when -fomit-frame-pointer is used.
2001-07-05 Jeffrey Oldham <oldham@codesourcery.com>
* flow.c: Reverse Jan Hubicka's patch of 02July2001.
(try_redirect_by_replacing_jump): Reverse updating properly the
count and frequency information. Reverse removing cc0 setter.
(forwarder_block_p): Reverse fixing for fallthru blocks.
2001-07-05 DJ Delorie <dj@redhat.com>
* gcc.c (TARGET_OPTION_TRANSLATE_TABLE): New.
(translate_options): If the above is defined, use it to map
given options to new options.
* doc/tm.texi: Document it.
2001-07-05 Brad Lucier <lucier@math.purdue.edu>
Gerald Pfeifer <pfeifer@dbai.tuwien.ac.at>
* doc/invoke.texi (Optimize Options): Document that -fgcse may
cause programs using computed gotos to run more slowly.
2001-07-05 Rainer Orth <ro@TechFak.Uni-Bielefeld.DE>
* doc/install.texi (Specific): Markup, spelling and typo fixes.
Fixed sorting.
Consistently require binutils 2.11.2, not prereleases.
(Specific, decstation-*): Canonicalize as mips-dec-*.
(Specific, i?86-*-sco3.2v5*): Remove make bootstrap requirement,
always necessary.
(Specific, m68k-altos): Removed reference to README.altos, deleted.
(Specific, mips-*): Reword MIPS C compiler requirements.
(Specific, powerpc*-*-*): New, mention --with-cpu once.
(Specific, sunv5): Removed, obsolete.
2001-07-05 Nathan Sidwell <nathan@codesourcery.com>
* dwarf2out.c (output_loc_list): Use an all ones mask for
.text asm output and don't rely on long long
literals. Reformat some long lines.
2001-07-05 Andreas Jaeger <aj@suse.de>
* doc/gcc.texi (GNU/Linux): Remove accidental re-add of GPL
section.
2001-07-04 Daniel Berlin <dan@cgsoftware.com>
* dwarf2out.c (dwarf2out_define): Update comment.
(dwarf2out_undef): Ditto.
(dwarf2out_start_source_file): Ditto.
(dwarf2out_end_source_file): Ditto.
(dwarf2out_finish): Output DW_MACINFO_end_file for primary file,
since we never call the start/end debug hook for the primary file.
2001-07-04 Kazu Hirata <kazu@hxi.com>
* config/h8300/h8300.c (get_shift_alg): Remove an extra operand
from shll.
2001-07-04 Nathan Sidwell <nathan@codesourcery.com>
* cppinit.c (remove_dup_dirs): Inform if a system include
directory is being reordered.
* doc/invoke.texi (Directory Options): GCC warns if you hide a
system include.
* doc/cpp.texi (Search Paths): Likewise.
* doc/gcc.texi (Interoperation): Remove information about
-I/usr/include.
2001-07-04 Nathan Sidwell <nathan@codesourcery.com>
* varray.h (VARRAY_TOP_GENERIC_PTR): Remove spurious parameter.
(VARRAY_TOP_CHAR_PTR): Likewise.
2001-07-04 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
* gcc.c (process_command): Don't assign elements of a const char*.
Wed Jul 4 13:40:02 2001 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
* emit-rtl.c (change_address): Don't abort if invalid address while
reload is in progress.
2001-07-04 Daniel Berlin <dan@cgsoftware.com>
* c-lex.c (cb_file_change): Pass line number to
debug_start_source_file.
(cb_undefine): Pass correct line number to debug_undef.
* toplev.c (debug_start_source_file): Add line number to
parameters. Pass it along to dwarf2out_start_source_file.
(decode_g_option): Stop resetting debug level back to normal when
we change debug formats, unless the current level is
none. (Before, -g3 -gdwarf-2 would use debug level 2, rather than
3).
* toplev.h (debug_start_source_file): Add line number to
parameters.
* dwarf2out.h (dwarf2out_start_source_file): Add line number to
parameters.
* dwarf2out.c (dwarf2out_start_source_file): Add line number to
parameters.
Output debug_macinfo data for starting file if requested.
(dwarf2out_end_source_file): Output debug_macinfo data for ending
file if requested.
(dwarf2out_define): Output debug_macinfo data for defining a macro
if requested.
(dwarf2out_undef): Output debug_macinfo data for undefining a
macro if requested.
(DEBUG_MACINFO_SECTION): New. DWARF2 macro info section name.
(DEBUG_MACINFO_SECTION_LABEL): New. DWARF2 macro info section label.
(macinfo_section_label): New. DWARF2 macro info section label.
(dwarf2out_init): If we want macro info, output the start label
for the section.
(dwarf2out_finish): If we want macro info, add a DW_AT_macro_info
attribute to the compilation unit die pointing to the macro info.
2001-07-04 Daniel Berlin <dan@cgsoftware.com>
* dwarf2out.c (new_loc_list): Move to inside #ifdef
DWARF2_DEBUGGING_INFO.
(add_loc_descr_to_loc_list): Ditto.
(output_loc_list): Ditto.
Also, fix thinko in curr not being initialized.
(gen_internal_sym): Ditto.
Wed Jul 4 13:40:02 2001 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
* emit-rtl.c (replace_equiv_address): New function.
* expr.h (replace_equiv_address): New declaration.
* explow.c (validize_mem): Call it instead of change_address and
also call if -fforce-addr and address is constant.
* expr.c: Replace more calls to change_address with adjust_address
and/or replace_equiv_address or to validize_mem.
* function.c, regmove.c, config/alpha/alpha.c: Likewise.
* config/arm/arm.md, config/clipper/clipper.md: Likewise.
* config/dsp16xx/dsp16xx.md, config/fr30/fr30.c: Likewise.
* config/i370/i370.md, config/i860/i860.md: Likewise.
* config/i960/i960.md, config/mips/mips.c: Likewise.
* config/mips/mips.md, config/pa/pa.md: Likewise.
* config/pdp11/pdp11.md, config/rs6000/rs6000.c: Likewise.
* config/rs6000/rs6000.md, config/sh/sh.md: Likewise.
2001-07-04 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
* bitmap.c (bitmap_union_of_diff): Don't use BITMAP_ALLOCA.
* bitmap.h (BITMAP_ALLOCA): Don't pass alloca as an argument to a
function.
2001-07-04 Joseph S. Myers <jsm28@cam.ac.uk>
* doc/include: New directory.
* doc/fdl.texi: Move to doc/include/fdl.texi.
* doc/texinfo.tex: Move to doc/include/texinfo.tex.
* doc/include/funding.texi, doc/include/gpl.texi: New files.
* doc/gcc.texi: Use funding.texi and gpl.texi.
* Makefile.in ($(docdir)/cpp.info, $(docdir)/gcc.info,
$(docdir)/cppinternals.info, cpp.dvi. gcc.dvi. cppinternals.dvi):
Update dependencies and use -I $(docdir)/include.
2001-07-04 Anthony Green <green@redhat.com>
* config/v850/t-v850 (v850-c.o): Add missing dependencies.
2001-07-04 Gerald Pfeifer <pfeifer@dbai.tuwien.ac.at>
* doc/install.texi (sparc64-*-*): Remove garbage.
Wed Jul 4 09:07:44 2001 Jan van Male <jan.vanmale@fenk.wau.nl>
* i386.c (ix86_expand_builtin, case IX86_BUILTIN_SETPS):
Fix typo in last change to use adjust_address.
2001-07-04 Gerald Pfeifer <pfeifer@dbai.tuwien.ac.at>
* doc/install.texi (Specific): Update information for *-*-solaris*.
Tue Jul 3 22:33:15 2001 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
* explow.c (plus_constant_wide): Reinitialize Y for restart.
2001-07-03 Stan Shebs <shebs@apple.com>
* config/darwin.h (SECTION_FUNCTION): Remove WAS_TEXT argument, remove
case for flag_no_mach_text_sections.
(EXTRA_SECTION_FUNCTIONS): Remove arg from uses of SECTION_FUNCTION.
* config/darwin.c (flag_no_mach_text_sections): Remove.
* config/darwin-protos.h (darwin_init_pragma): Remove decl.
Tue Jul 3 15:35:52 2001 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
* explow.c (plus_constant_wide, case PLUS): Call find_constant_term
and avoid checking for constant as first operand.
* recog.c (find_constant_term_loc): No longer static.
(adj_offettable_operand): Delete.
* rtl.h (adj_offsettable_operand): Delete declaration.
(find_constant_term): Add declaration.
* caller-save.c: Replace calls to adj_offsettable_operand with calls
to adjust_address.
* config/arm/arm.c, config/c4x/c4x.c: Likewise.
* config/clipper/clipper.md, config/h8300/h8300.c: Likewise.
* config/i386/i386.c, config/i386/i386.md: Likewise.
* config/i860/i860.c, config/i960/i960.c: Likewise.
* config/i960/i960.md, config/m68hc11/m68hc11.c: Likewise.
* config/m68k/m68k.c, config/m68k/m68k.md: Likewise.
* config/m88k/m88k.md, config/mcore/mcore.c: Likewise.
* config/mips/mips.c, config/mips/mips.md: Likewise.
* config/mn10200/mn10200.c, config/mn10300/mn10300.c: Likewise.
* config/ns32k/ns32k.c, config/ns32k/ns32k.md: Likewise.
* config/pa/pa.c, config/pdp11/pdp11.c: Likewise.
* config/pdp11/pdp11.md, config/sh/sh.c, config/v850/v850.c: Likewise.
* config/vax/vax.md, config/ns32k/ns32k.c: Likewise.
* config/ns32k/ns32k.md: Likewise.
2001-07-03 Zack Weinberg <zackw@stanford.edu>
* rtl.c (copy_rtx): Handle 'T' format letter.
* gensupport.c (collect_insn_data): Likewise.
* print-rtl.c (print_rtx): Print 'T' slots like 's'.
2001-07-03 Nick Clifton <nickc@cambridge.redhat.com>
* doc/invoke.texi (Directory Options): Specifiy range for <N> in
-B option. Use 'dir' not 'foo' as example directory name.
2001-07-03 Rainer Orth <ro@TechFak.Uni-Bielefeld.DE>
* config/i386/sol2.h (ASM_PREFERRED_EH_DATA_FORMAT): Define.
Fixes PRs bootstrap/3067, bootstrap/3249, bootstrap/3275.
2001-07-03 Joseph S. Myers <jsm28@cam.ac.uk>
* doc/cppinternals.texi: Improve formatting and logical markup.
2001-07-03 Andreas Jaeger <aj@suse.de>
* Makefile.in (insn-recog.o): Add dependency on reload.h.
* genrecog.c (write_header): Include reload.h for prototypes in
insn-recog.c.
2001-07-03 Neil Booth <neil@daikokuya.demon.co.uk>
config:
* i386/cygwin.h (VALID_MACHINE_DECL_ATTRIBUTE,
VALID_MACHINE_TYPE_ATTRIBUTE): Remove.
* i386/i386-protos.h (i386_pe_valid_decl_attribute_p,
i386_pe_valid_type_attribute_p): Add.
* i386/i386.c (TARGET_INITIALIZER): Override for cygwin targets.
* i386/winnt.c (i386_valid_decl_attribute_p): Return directly.
Mon Jul 2 21:52:19 2001 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
* explow.c (plus_constant_wide, case LO_SUM): New case.
(plus_constant_for_output_wide): Delete.
* rtl.h (plus_constant_for_output): Delete.
* alias.c (canon_rtx, init_alias_analysis): Call plus_constant
instead of plus_constant_for_output.
* recog.c (offsettable_address_p, adj_offsettable_operand): Likewise.
* config/darwin.c, config/arm/arm.c, config/m68k/m68k.c: Likewise.
* config/m88k/m88k.c, config/mips/mips.c, config/pa/pa.c: Likewise.
* config/rs6000/rs6000.c, config/sparc/sparc.c: Likewise.
* config/sparc/sparc.md: Likewise.
Convert some change_address calls to adjust_address.
2001-07-03 Joseph S. Myers <jsm28@cam.ac.uk>
* doc/extend.texi, doc/gcc.texi, doc/invoke.texi, doc/md.texi,
doc/rtl.texi, doc/tm.texi: Improve formatting. Improve
documentation of -std and -Wwrite-strings.
2001-07-02 Geoffrey Keating <geoffk@redhat.com>
* cse.c (canon_hash): Don't register registers in very small
register classes, as extending their lifetime might cause
reload to fail.
Mon Jul 2 23:14:00 CEST 2001 Jan Hubicka <jh@suse.cz>
* flow.c (try_redirect_by_replacing_jump): Remove cc0 setter.
* flow.c (forwarder_block_p): Fix for fallthru blocks.
(try_redirect_by_replacing_jump): Update properly the count
and frequency information.
Mon Jul 2 14:20:13 2001 Jeffrey A Law (law@cygnus.com)
* toplev.c (dump_file_index): Move SSA dumps just after first
jump dump.
(dump_file): Corresponding changes.
(rest_of_compilation): Move SSA path to just after the first
jump pass.
* doc/gcc.texi (Passes): Update due to movement of SSA path.
* doc/invoke.texi: Update dump file #s as they were completely
out of date with reality.
2001-07-02 Geoffrey Keating <geoffk@redhat.com>
* doc/tm.texi (Frame Layout): Document STACK_PUSH_CODE.
* expr.c (emit_move_insn_1): Deal with non-default
STACK_PUSH_CODE.
* expr.c (emit_single_push_insn): Fix warning.
2001-07-02 Toshiyasu Morita <toshiyasu.morita@hsa.hitachi.com>
* expr.c (emit_move_insn_1): Avoid modifying
cfun->expr->x_stack_pointer when PUSH_ROUNDING is defined.
Mon Jul 2 15:33:31 2001 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
* emit-rtl.c (adjust_address): New function.
* expr.h (adjust_address): Add declaration.
* builtins.c: Replace some calls to change_address with calls to it
or to validize_mem.
* caller-save.c, dwarf2out.c, except.c, expmed.c, expr.c: Likewise.
* function.c, config/a29k/a29k.md, config/alpha/alpha.c: Likewise.
* config/arm/arm.c, config/convex/convex.c: Likewise.
* config/dsp16xx/dsp16xx.md, config/fr30/fr30.c: Likewise.
* config/i386/i386.c, config/i386/i386.md: Likewise.
* config/ia64/ia64.c, config/ia64/ia64.md: Likewise.
* config/m32r/m32r.c, config/m68k/m68k.md: Likewise.
* config/m88k/m88k.c, config/mips/mips.md: Likewise.
* config/ns32k/ns32k.c, config/rs6000/rs6000.c: Likewise.
* config/sh/sh.c, config/sparc/sparc.md: Likewise.
2001-07-02 Jim Wilson <wilson@redhat.com>
* config/ia64/ia64.h: Delete obsolete lib1funcs.asm comment.
2001-07-02 Steve Ellcey <sje@cup.hp.com>
* config/ia64/t-ia64: Change LIB1ASMFUNCS to use single underscore.
* config/ia64/lib1funcs.asm: Change macro names to match t-ia64.
2001-07-02 Zack Weinberg <zackw@stanford.edu>
* cppinit.c (lang_defaults): New table.
(set_lang): Just read from lang_defaults into the live options
structure.
2001-07-02 Zack Weinberg <zackw@stanford.edu>
* Makefile.in (doc): Depend on $(GENERATED_MANPAGES).
* doc/.cvsignore: Add gcc.1, cpp.1, gcov.1.
* doc/gcc.1, doc/cpp.1, doc/gcov.1: Removed.
2001-07-02 Rainer Orth <ro@TechFak.Uni-Bielefeld.DE>
* doc/install.texi: Various spelling and markup fixes.
(Installing GCC): Component specific installation instructions are
gone.
Fix reference.
Warn about removing old install dir in the presence of shared libs.
(Configuration): Invoke with options target to match configure
--help.
Consistently refer to gas, gld pathnames.
Invert --enable-multilib documentation.
Remove references to old compiler versions.
Mon Jul 2 12:50:51 2001 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
* flow.c (try_simplify_condjump): Fix typo in updating fallthru flags.
2001-07-02 Rainer Orth <ro@TechFak.Uni-Bielefeld.DE>
* doc/install.texi (Specific, mips*-sgi-irix4): Split from IRIX 5
section.
(Specific, mips*-sgi-irix5): Note IDO download.
Reworded MIPS C hints.
Use GNU as instead of GAS.
Markup fixes.
Removed SGI Freeware reference, IRIX 6 only.
(Specific, mips*-sgi-irix6): Removed ranlib caveats, obsolete.
Note N64 library requirement/workaround.
Update O32 hints.
Complete list of structure passing bug victims.
2001-07-02 Gerald Pfeifer <pfeifer@dbai.tuwien.ac.at>
* doc/install.texi: Remove CVS Id.
2001-07-02 Andreas Jaeger <aj@suse.de>
* ssa-dce.c (note_inherently_necessary_set): Add unused attribute.
(find_inherently_necessary): Remove unused variable.
2001-07-02 Nathan Sidwell <nathan@codesourcery.com>
* c-common.h (TDI_inlined): New ast dump phase.
(dump_flag_name): New function.
* c-dump.c (dump_files): Add inlined phase.
(dump_flag_name): Define.
* doc/invoke.texi (-fdump-ast-inlined): Document.
Mon Jul 2 06:29:36 2001 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
* stor-layout.c (layout_decl): Revert change to handling of alignment
in packed types.
Sun Jul 1 11:53:52 2001 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
* c-common.c (decl_attributes, case A_MODE): Don't call layout_decl
for FIELD_DECL.
2001-07-01 Geoffrey Keating <geoffk@redhat.com>
* doc/tm.texi (FUNCTION_ARG): Document that the last call
is special.
2001-07-01 Nathan Sidwell <nathan@codesourcery.com>
* tlink.c (recompile_files): Remove COMPILER_PATH and
LIBRARY_PATH from the environment.
2001-07-01 Zack Weinberg <zackw@stanford.edu>
* c-common.h (enum rid): Add RID_FIRST_AT, RID_LAST_AT,
RID_LAST_PQ. Move RID_FIRST_PQ down with the other FIRST/LAST
enumerators.
(OBJC_IS_AT_KEYWORD, OBJC_IS_PQ_KEYWORD): New macros.
* c-parse.in (OBJC_STRING): Kill.
(objc_string): Decompose to [objc_string] '@' STRING.
(reswords): Take the leading '@' off all the Objective C keywords.
(objc_rid_sans_at): Kill.
(init_reswords): Don't initialize it.
(yylexname): Use OBJC_IS_AT_KEYWORD and OBJC_IS_PQ_KEYWORD.
(_yylex): Kill reconsider label. Look ahead one token after
an '@'; if we get an identifier, check whether it's an
Objective C @-keyword. If so, return the keyword. Otherwise,
put back the token and return the '@' as a terminal.
* cpplib.c (lex_macro_node): Remove unnecessary check for
leading '@' on identifier. Clarify control flow and commentary.
Sun Jul 1 11:53:52 2001 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
* cse.c (new_label_ref): Variable deleted.
(insert): Remove set of new_label_ref.
(check_for_label_ref): New function.
(cse_basic_block): Don't check new_label_ref; call check_for_label_ref.
See ChangeLog.5 for earlier changes.
From-SVN: r43861
2001-07-09 13:20:51 +02:00
|
|
|
|
switch (GET_CODE (XEXP (in, 0)))
|
|
|
|
|
{
|
|
|
|
|
case POST_INC: case POST_DEC: case POST_MODIFY:
|
|
|
|
|
in = replace_equiv_address_nv (in, XEXP (XEXP (in, 0), 0));
|
|
|
|
|
break;
|
Makefile.in (c-decl.o): Depend on rtl.h and expr.h.
* Makefile.in (c-decl.o): Depend on rtl.h and expr.h.
* alias.c (struct alias_entry): alias_set is HOST_WIDE_INT.
(REG_BASE_VALUE): Remove unneeded cast to unsigned.
(get_alias_set_entry): ALIAS_SET arg is HOST_WIDE_INT.
(find_base_decl): New function, from c_find_base_decl in c-common.c.
(new_alias_set): Moved from tree.c; return is HOST_WIDE_INT.
(get_alias_set): Likewise.
Major rework to do more things and allow language-specific code
to just handle special-cases.
(record_alias_subset): Args are HOST_WIDE_INT.
(record_component_alias): Local vars are HOST_WIDE_INT.
Don't handle COMPLEX_EXPR.
(get_varargs_alias_set): Moved from builtins.c.
(get_frame_alias_set): New function.
* builtins.c (expand_builtin_return_address): Use frame alias set.
(expand_builtin_setjmp, expand_builtin_longjmp): Use alias set
for setjmp buffer.
(get_memory_rtx): Rework to use set_mem_attributes.
(get_varargs_alias_set): Deleted from here.
* c-common.c (c_apply_type_quals_to_decl): Alias sets now HOST_WIDE_INT.
(c_find_base_decl): Deleted from here.
(c_get_alias_set): Remove many cases and rework to just handle
C-specific cases.
* c-common.h (c_get_alias_set): Returns HOST_WIDE_INT.
* c-decl.c (rtl.h, expr.h): Now included.
(init_decl_processing): Call record_component_aliases on array types.
(grokdeclarator): Likewise.
Set TREE_ADDRESSABLE for all fields that are not bitfields.
* c-typeck.c (common_type): Call record_component_aliases for array.
* caller-save.c (setup_save_areas): Rework register loop for unsigned.
Set all save areas to the frame alias set.
* calls.c (initialie_argument_information): Call set_mem_attributes.
(compute_argument_addresses, expand_call): Likewise.
* explow.c (set_mem_attributes): New function.
(stabilize): Use MEM_COPY_ATTRIBUTES and force_reg.
* expr.c (struct move_by_pieces): Remove {to,from}_{struct,readonly}.
LEN and OFFSET now HOST_WIDE_INT.
(clear_by_pieces): Similar changes.
(move_by_pieces): LEN now HOST_WIDE_INT; don't set deleted fields.
(move_by_pieces_ninsns): Now returns unsigned HOST_WIDE_INT.
(move_by_pieces_1): Don't use deleted fields, use MEM_COPY_ATTRIBUTES.
(clear_by_pieces_1): Likewise.
(emit_push_insn): Call set_mem_attributes.
(expand_expr, case INDIRECT_REF): Likewise.
(expand_expr, case VAR_DECL): Call change_address.
* expr.h (ADD_PARM_SIZE, SUB_PARM_SIZE): Use host_integerp and
tree_low_cst.
(get_varargs_alias_set, get_frame_alias_set): New decls.
(record_base_value, record_alias_subset, lang_get_alias_set): Likewise.
(new_alias_set, set_mem_attributes): Likewse.
* function.c (struct temp_slot): ALIAS_SET is HOST_WIDE_INT.
(assign_stack_temp_for_type): Likewise.
Can split slot even if alias set since can copy.
Set MEM_ALIAS_SET and MEM_SET_IN_STRUCT_P.
(assign_temp): Use host_integerp and tree_low_cst.
(put_var_into_stack): Properly handle SAVE_EXPR.
(put_addressof_into_stack): Likewise.
(assign_parms): Call set_mem_attributes.
Delete #if 0 code.
(fix_lexical_address): Put reference to chain into frame alias set.
(expand_function_start): Call set_mem_attributes.
* integrate.c (expand_inline_function): Likewise.
* recog.c (adj_offsettable_operand): Use MEM_COPY_ATTRIBUTES.
* regmove.c (try_apply_stack_adjustment): Likewise.
* reload.c (push_reload, make_memloc): Likewise.
* reload1.c (alter_reg): Make alias sets for spilled pseudos.
* rtl.def (MEM): Update comment.
* rtl.h (MEM_ALIAS_SET): Now uses XCWINT.
(move_by_pieces): Change length to HOST_WIDE_INT.
(record_base_value, record_alias_subset): Delete from here.
* stmt.c (expand_decl): Call set_mem_attributes.
* stor-layout.c (finish_record_layout): Call record_component_aliases.i
* toplev.c (compile_file): Call init_alias_once earlier.
* tree.c (lang_get_alias_set, get_alias_set, new_alias_set): Deleted
from here: now in alias.c.
* tree.h (struct tree_type): alias_set is HOST_WIDE_INT.
(struct tree_decl): Likewise.
(get_alias_set, new_alias_set, lang_get_alias_set): Deleted from here.
* varasm.c (make_function_rtl, make_decl_rtl): Call set_mem_attributes.
(output_constant_def, force_const_mem): Likewise.
* cp/Makefile.in (decl.o): Include ../expr.h.
* cp/decl.c (expr.h): Include.
(init_decl_processing): Call record_component_aliases for arrays.
(grokdeclarator): Likewise.
Set TREE_ADDRESSABLE for fields that aren't bitfields.
* cp/tree.c (build_cplus_array_type_1): Call record_component_aliases.
From-SVN: r34305
2000-05-31 20:37:31 +02:00
|
|
|
|
|
[multiple changes]
Mon Jul 9 06:41:07 2001 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
* emit-rtl.c (adjust_address_nv, replace_equiv_address_nv): New fcns.
(operand_subword): Use them.
(change_address_1): Renamed from change_address; new arg VALIDATE.
* expr.h: Reflect above changes; change_address now macro.
* alias.c (canon_rtx): Use replace_equiv_address_nv instead of
making MEM.
* cselib.c (add_mem_for_addr): Likewise.
* expr.c (protect_from_queue, emit_move_insn_1): Likewise.
* regmove.c (try_apply_stack_adjustment): Likewise.
* reload.c (push_reload, make_memloc): Likewise.
* reload1.c (eliminate_regs): Likewise.
* simplify-rtx.c (simplify_replace_rtx): Likewise.
* caller-save.c (setup_save_areas): Use adjust_address_nv instead of
adjust_addess.
* combine.c (make_extraction, simplify_shift_const): Likewise.
(gen_lowpart_for_combine): Likewise.
* cse.c (gen_lowpart_if_possible): Likewise.
* function.c (fixup_var_refs_1, purge_addressof_1): Likewise.
* expr.c (expand_expr, case COMPONENT_REF): Likewise.
* optabs.c (gen_move_insn): Likewise.
* reload1.c (alter_reg): Likewise.
* simplify-rtx.c (simplify_subreg): Likewise.
* stmt.c (expand_anon_union_decl): Likewise.
* recog.c (validate_replace_rtx_1): Likewise.
(expr.h): Include.
* Makefile.in (recog.o): Add $(EXPR_H).
* explow.c (stabilize): Call replace_equiv_address.
* expr.c (move_by_pieces_1, store_by_pieces_2): Likewise.
* final.c (alter_subreg): OFFSET is HOST_WIDE_INT.
2001-07-09 Bo Thorsen <bo@suse.co.uk>
* config/i386/unix.h (ASM_OUTPUT_MI_THUNK): Fix x86-64 vtable support.
2001-07-09 Neil Booth <neil@daikokuya.demon.co.uk>
* final.c (output_addr_const): Use target opening and
closing parentheses.
* target-def.h: Define TARGET_ASM_OPEN_PAREN, TARGET_ASM_CLOSE_PAREN
defaults, add to TARGET_ASM_OUT.
* target.h (struct gcc_target): Add open_paren and close_paren.
* doc/md.texi: Update.
* doc/tm.texi: Document TARGET_ASM_FUNCTION_END_PROLOGUE,
TARGET_ASM_FUNCTION_BEGIN_EPILOGUE, TARGET_ASM_OPEN_PAREN and
TARGET_ASM_CLOSE_PAREN.
* config/i386/i386.c (TARGET_ASM_OPEN_PAREN, TARGET_ASM_CLOSE_PAREN):
Override.
* config/pdp11/pdp11.c (TARGET_ASM_OPEN_PAREN, TARGET_ASM_CLOSE_PAREN):
Override.
* config/1750a/1750a.h (ASM_OPEN_PAREN, ASM_CLOSE_PAREN): Remove.
* config/a29k/a29k.h: Similarly.
* config/alpha/alpha.h: Similarly.
* config/arc/arc.h: Similarly.
* config/arm/aof.h: Similarly.
* config/arm/aout.h: Similarly.
* config/avr/avr.h: Similarly.
* config/c4x/c4x.h: Similarly.
* config/clipper/clipper.h: Similarly.
* config/convex/convex.h: Similarly.
* config/d30v/d30v.h: Similarly.
* config/dsp16xx/dsp16xx.h: Similarly.
* config/elxsi/elxsi.h: Similarly.
* config/fr30/fr30.h: Similarly.
* config/h8300/h8300.h: Similarly.
* config/i370/i370.h: Similarly.
* config/i386/i386.h: Similarly.
* config/i860/i860.h: Similarly.
* config/i960/i960.h: Similarly.
* config/ia64/ia64.h: Similarly.
* config/m32r/m32r.h: Similarly.
* config/m68hc11/m68hc11.h: Similarly.
* config/m68k/m68k.h: Similarly.
* config/m88k/m88k.h: Similarly.
* config/mcore/mcore.h: Similarly.
* config/mips/mips.h: Similarly.
* config/mn10200/mn10200.h: Similarly.
* config/mn10300/mn10300.h: Similarly.
* config/ns32k/ns32k.h: Similarly.
* config/pa/pa.h: Similarly.
* config/pdp11/pdp11.h: Similarly.
* config/pj/pj.h: Similarly.
* config/romp/romp.h: Similarly.
* config/rs6000/rs6000.h: Similarly.
* config/sh/sh.h: Similarly.
* config/sparc/sparc.h: Similarly.
* config/v850/v850.h: Similarly.
* config/vax/vax.h: Similarly.
* config/we32k/we32k.h: Similarly.
2001-07-09 Joseph S. Myers <jsm28@cam.ac.uk>
* doc/c-tree.texi: Document representation of attributes.
2001-07-08 Joseph S. Myers <jsm28@cam.ac.uk>
* doc/tm.texi: Update some places for the rename of target to
targetm. Fix typo.
2001-07-08 Joseph S. Myers <jsm28@cam.ac.uk>
* target.h (struct gcc_target): Add insert_attributes.
* target-def.h (TARGET_INSERT_ATTRIBUTES): Define.
(TARGET_INITIALIZER): Update.
* tree.c, tree.h (default_insert_attributes): New function.
Update comments on other default functions to refer to targetm,
not target.
* doc/tm.texi (INSERT_ATTRIBUTES): Update to document
TARGET_INSERT_ATTRIBUTES.
(SET_DEFAULT_DECL_ATTRIBUTES): Remove.
* c-common.c (decl_attributes): Use targetm.insert_attributes.
Don't use PRAGMA_INSERT_ATTRIBUTES.
* Makefile.in (c-common.o): Depend on $(TARGET_H).
* c-decl.c (start_decl, start_function): Don't call
SET_DEFAULT_DECL_ATTRIBUTES.
* config/c4x/c4x.h (SET_DEFAULT_DECL_ATTRIBUTES): Don't define.
* config/c4x/c4x-protos.h (c4x_set_default_attributes): Don't
declare.
* config/c4x/c4x.c (TARGET_INSERT_ATTRIBUTES): Define.
(c4x_check_attribute): Avoid modifying attribute list itself.
(c4x_set_default_attributes): Rename to c4x_insert_attributes.
Make static.
* config/sh/sh.h (PRAGMA_INSERT_ATTRIBUTES): Don't define.
* config/sh/sh-protos.h (sh_pragma_insert_attributes): Don't
declare.
* config/sh/sh.c (TARGET_INSERT_ATTRIBUTES): Define.
(sh_pragma_insert_attributes): Rename to sh_insert_attributes.
Make static.
* config/v850/v850.h (SET_DEFAULT_DECL_ATTRIBUTES): Don't define.
* config/v850/v850-protos.h (v850_set_default_decl_attr): Don't
declare.
* config/v850/v850.c (TARGET_INSERT_ATTRIBUTES): Define.
(v850_set_default_decl_attr): Rename to v850_insert_attributes.
Adjust parameters. Make static.
2001-07-08 Joseph S. Myers <jsm28@cam.ac.uk>
* c-common.c (decl_attributes): Only take a single attributes
parameter.
* c-common.h (decl_attributes): Update prototype.
* c-decl.c (start_decl, start_function): Only take a single
attributes parameter. Update calls to decl_attributes.
(finish_struct, finish_enum): Update calls to decl_attributes.
(push_parm_decl): Expect unified list of attributes. Update call
to decl_attributes.
* c-parse.in (fndef, initdcl, notype_initdcl, nested_function,
notype_nested_function, component_declarator,
component_notype_declarator, label): Update calls to
decl_attributes.
(absdcl_maybe_attribute, parm, firstparm, myparm): Unify attribute
lists that are passed to push_parm_decl.
* c-tree.h (start_function, start_decl): Update prototypes.
* config/sh/sh-protos.h, config/sh/sh.c
(sh_pragma_insert_attributes): Only take a single attributes
parameter.
* config/sh/sh.h (PRAGMA_INSERT_ATTRIBUTES): Likewise.
* doc/tm.texi (INSERT_ATTRIBUTES): Update.
* objc/objc-act.c (define_decl, generate_objc_symtab_decl,
build_module_descriptor, generate_static_references,
generate_strings, build_selector_translation_table,
generate_descriptor_table, generate_protocols,
generate_ivars_list, generate_dispatch_table,
generate_protocol_list, generate_category,
generate_shared_structures, really_start_method, add_objc_decls,
generate_classref_translation_entry): Update calls to start_decl
and start_function.
(build_tmp_function_decl, start_method_def): Unify attribute lists
that are passed to push_parm_decl.
2001-07-08 Neil Booth <neil@daikokuya.demon.co.uk>
* final.c (no_asm_to_stream): New.
(final_scan_insn): Use target structures for prologue ends
and epilogue starts.
* output.h (no_asm_to_stream): New.
* target-def.h (TARGET_ASM_FUNCTION_END_PROLOGUE,
TARGET_ASM_FUNCTION_BEGIN_EPILOGUE): New.
(TARGET_ASM_OUT): Update.
* target.h (struct gcc_target): New members function_end_prologue
and function_begin_epilogue.
* config/1750/1750.h (ASM_OUTPUT_FUNNAM): Delete as unused.
* config/alpha/alpha-protos.h (output_end_prologue): Delete.
* config/alpha/alpha.c (output_end_prologue): Rename to
alpha_output_function_end_prologue. Use in target struct
and make static.
* config/alpha/alpha.h (FUNCTION_END_PROLOGUE): Delete.
* config/ia64/ia64-protos.h (ia64_output_end_prologue): Delete.
* config/ia64/ia64.c (ia64_output_end_prologue): Rename to
ia64_output_function_end_prologue. Use in target struct
and make static.
(ia64_function_prologue, ia64_funciton_epilogue): Rename
mistyped prototypes.
* config/ia64/ia64.h (FUNCTION_END_PROLOGUE): Delete.
* config/m88k/m88k-protos.h (m88k_end_prologue, m88k_begin_epilogue):
Delete.
* config/m88k/m88k.c (m88k_end_prologue, m88k_begin_epilogue): Rename
an use in target struct, make static.
* config/ia64/ia64.h (FUNCTION_END_PROLOGUE, FUNCTION_BEGIN_EPILOGUE):
Delete.
2001-07-08 Richard Henderson <rth@redhat.com>
* stmt.c (emit_case_nodes): Convert modes properly in low+high test.
2001-07-08 Richard Henderson <rth@redhat.com>
* config/i386/i386.md: Remove constraints strings from define_split
and define_peephole2 patterns.
(eh_return_si, eh_return_di): Split eh_return_1 for modes.
(eh_return): Use them.
2001-07-08 Richard Henderson <rth@redhat.com>
* doc/tm.texi (Exception Handling): New subnode of Stack and Calling.
Document MD_FALLBACK_FRAME_STATE_FOR.
2001-07-07 Stephane Carrez <Stephane.Carrez@worldnet.fr>
* config/m68hc11/m68hc11.c (m68hc11_initial_elimination_offset):
Take into account m68hc11_sp_correction for FRAME_POINTER_REGNUM
elimination.
* config/m68hc11/m68hc11.h (STARTING_FRAME_OFFSET): Use 0.
2001-07-07 Nick Clifton <nickc@cambridge.redhat.com>
* config/ia64/sysv4.h (ASM_OUTPUT_LABELREF): Append # to end
of the label inside NAME as opposed to just the end of NAME.
2001-07-07 Neil Booth <neil@daikokuya.demon.co.uk>
* config/alpha/alpha-protos.h (vms_valid_decl_attribute_p): Delete.
* config/alpha/alpha.c (alpha_init_machine_status,
alpha_mark_machine_status, alpha_free_machine_status): Delete.
(TARGET_VALID_DECL_ATTRIBUTE): Define for VMS.
(vms_valid_decl_attribute_p): Make static, conditionally compile.
* config/alpha/alpha.h (VALID_MACHINE_DECL_ATTRIBUTE): Delete.
2001-07-06 Stan Shebs <shebs@apple.com>
* target.h (targetm): Rename global from "target", so as not to
conflict with local variables.
* c-decl.c: Ditto.
* c-typeck.c: Ditto.
* final.c: Ditto.
* tree.c: Ditto.
* cp/decl.c: Ditto.
* cp/decl2.c: Ditto.
* cp/typeck.c: Ditto.
* 1750a/1750a.c: Ditto.
* a29k/a29k.c: Ditto.
* arc/arc.c: Ditto.
* arm/arm.c: Ditto.
* avr/avr.c: Ditto.
* clipper/clipper.c: Ditto.
* convex/convex.c: Ditto.
* d30v/d30v.c: Ditto.
* dsp16xx/dsp16xx.c: Ditto.
* elxsi/elxsi.c: Ditto.
* fr30/fr30.c: Ditto.
* h8300/h8300.c: Ditto.
* i370/i370.c: Ditto.
* i386/i386.c: Ditto.
* i860/i860.c: Ditto.
* i960/i960.c: Ditto.
* ia64/ia64.c: Ditto.
* m32r/m32r.c: Ditto.
* m68hc11/m68hc11.c: Ditto.
* m68k/m68k.c: Ditto.
* m88k/m88k.c: Ditto.
* mips/mips.c: Ditto.
* ns32k/ns32k.c: Ditto.
* pa/pa.c: Ditto.
* pdp11/pdp11.c: Ditto.
* romp/romp.c: Ditto.
* rs6000/rs6000.c: Ditto.
* sh/sh.c: Ditto.
* sparc/sparc.c: Ditto.
* vax/vax.c: Ditto.
* we32k/we32k.c: Ditto.
* doc/tm.texi: Update the manual to match.
2001-07-06 Richard Henderson <rth@redhat.com>
* except.h (MUST_USE_SJLJ_EXCEPTIONS): Examine the value of
DWARF2_UNWIND_INFO not just whether it is defined.
2001-07-06 Diego Novillo <dnovillo@redhat.com>
* combine.c (combine_simplify_rtx): Also recompute 'mode' if the
call to simplify_binary_operation returns a new pattern.
2001-07-06 Roman Lechtchinsky <rl@cs.tu-berlin.de>
* glimits.h (__SHRT_MAX__): New.
(SHRT_MIN, USHRT_MAX): Define in terms of SHRT_MAX.
(SHRT_MAX): Define in terms of __SHRT_MAX__.
2001-07-06 Jan van Male <jan.vanmale@fenk.wau.nl>
* alias.c (base_alias_check): Cast GET_MODE_UNIT_SIZE to int to
avoid warnings.
2001-07-06 Richard Henderson <rth@redhat.com>
* bitmap.c (bitmap_release_memory): Move adjacent to the
allocation functions.
(bitmap_first_set_bit, bitmap_last_set_bit): Streamline knowing
the implementation. Binary search for the set bit.
(bitmap_union_of_diff): Allocate the temporary on the stack
instead of using xmalloc.
2001-07-06 Richard Henderson <rth@redhat.com>
* genrecog.c (validate_pattern): Warn for constraints in
define_{expand,split,peephole2}. Remove strict_low_part
before looking up match_dup.
2001-07-06 DJ Delorie <dj@redhat.com>
* doc/gcc.texi (Makefile): Rename to be a more general purpose
chapter about various build hints and history. Add section
talking about the various types of native and cross builds.
2001-07-06 Neil Booth <neil@daikokuya.demon.co.uk>
* Makefile.in (final.o): Depend on target.h.
* final.c: Include target.h.
(default_function_pro_epilogue): New.
(final_start_function): Use target structure for function prologues.
(final_end_function): Use target structure for function epilogues.
* fold-const.c (real_hex_to_f): Constify s and p.
* output.h (default_function_pro_epilogue): New.
* real.h (real_hex_to_f): Update prototype.
* target-def.h (TARGET_ASM_FUNCTION_PROLOGUE,
TARGET_ASM_FUNCTION_EPILOGUE, TARGET_ASM_OUT): New.
(TARGET_INITIALIZER): Update.
* target.h (gcc_target): Add struct asm_out.
* doc/tm.texi: Update.
config:
Update each arch to use TARGET_ASM_FUNCTION_PROLOGUE and
TARGET_ASM_FUNCTION_EPILOGUE. Move macro code to functions
in cpu/cpu.c, or rename old functions consistently. Take
a HOST_WIDE INT not an int as the SIZE parameter. Remove now
redundant macros and prototypes. Make new functions static.
* 1750a/1750a.c: Similarly.
* 1750a/1750a.h: Similarly.
* a29k/a29k-protos.h: Similarly.
* a29k/a29k.c: Similarly.
* a29k/a29k.h: Similarly.
* arc/arc-protos.h: Similarly.
* arc/arc.c: Similarly.
* arc/arc.h: Similarly.
* arm/arm-protos.h: Similarly.
* arm/arm.c: Similarly.
* arm/arm.h: Similarly.
* avr/avr-protos.h: Similarly.
* avr/avr.c: Similarly.
* avr/avr.h: Similarly.
* clipper/clipper-protos.h: Similarly.
* clipper/clipper.c: Similarly.
* clipper/clipper.h: Similarly.
* convex/convex.c: Similarly.
* convex/convex.h: Similarly.
* d30v/d30v-protos.h: Similarly.
* d30v/d30v.c: Similarly.
* d30v/d30v.h: Similarly.
* d30v/d30v.md: Similarly.
* dsp16xx/dsp16xx-protos.h: Similarly.
* dsp16xx/dsp16xx.c: Similarly.
* dsp16xx/dsp16xx.h: Similarly.
* elxsi/elxsi.c: Similarly.
* elxsi/elxsi.h: Similarly.
* fr30/fr30.c: Similarly.
* fr30/fr30.md: Similarly.
* h8300/h8300-protos.h: Similarly.
* h8300/h8300.c: Similarly.
* h8300/h8300.h: Similarly.
* i370/i370-protos.h: Similarly.
* i370/i370.c: Similarly.
* i370/i370.h: Similarly.
* i386/i386.c: Similarly.
* i386/osf1elf.h: Similarly.
* i386/osfrose.h: Similarly.
* i860/i860-protos.h: Similarly.
* i860/i860.c: Similarly.
* i860/i860.h: Similarly.
* i960/i960-protos.h: Similarly.
* i960/i960.c: Similarly.
* i960/i960.h: Similarly.
* ia64/ia64-protos.h: Similarly.
* ia64/ia64.c: Similarly.
* ia64/ia64.h: Similarly.
* m32r/m32r-protos.h: Similarly.
* m32r/m32r.c: Similarly.
* m32r/m32r.h: Similarly.
* m68hc11/m68hc11-protos.h: Similarly.
* m68hc11/m68hc11.c: Similarly.
* m68hc11/m68hc11.h: Similarly.
* m68k/crds.h: Similarly.
* m68k/dpx2.h: Similarly.
* m68k/m68k-protos.h: Similarly.
* m68k/m68k.c: Similarly.
* m68k/m68k.h: Similarly.
* m68k/news.h: Similarly.
* m88k/m88k-protos.h: Similarly.
* m88k/m88k.c: Similarly.
* m88k/m88k.h: Similarly.
* mips/mips-protos.h: Similarly.
* mips/mips.c: Similarly.
* mips/mips.h: Similarly.
* ns32k/merlin.h: Similarly.
* ns32k/ns32k.c: Similarly.
* ns32k/ns32k.h: Similarly.
* ns32k/tek6000.h: Similarly.
* pa/pa-protos.h: Similarly.
* pa/pa.c: Similarly.
* pa/pa.h: Similarly.
* pdp11/2bsd.h: Similarly.
* pdp11/pdp11-protos.h: Similarly.
* pdp11/pdp11.c: Similarly.
* pdp11/pdp11.h: Similarly.
* romp/romp-protos.h: Similarly.
* romp/romp.c: Similarly.
* romp/romp.h: Similarly.
* rs6000/rs6000-protos.h: Similarly.
* rs6000/rs6000.c: Similarly.
* rs6000/rs6000.h: Similarly.
* rs6000/sysv4.h: Similarly.
* sh/sh-protos.h: Similarly.
* sh/sh.c: Similarly.
* sh/sh.h: Similarly.
* sparc/sparc-protos.h: Similarly.
* sparc/sparc.c: Similarly.
* sparc/sparc.h: Similarly.
* vax/vax.c: Similarly.
* vax/vax.h: Similarly.
* vax/vms.h: Similarly.
* we32k/we32k.c: Similarly.
* we32k/we32k.h: Similarly.
Fri Jul 6 11:47:59 2001 Jeffrey A Law (law@cygnus.com)
* basic-block.h (first_insn_after_basic_block_note): Declare.
* flow.c (first_insn_after_basic_block_note): Define. Moved
from...
* ssa.c (first_insn_after_basic_block_note): Remove.
* ssa-dce.c (find_inherently_necessary): Consider BARRIERs
necessary.
(ssa_eliminate_dead_code): Properly update the CFG and PHI
nodes when we find a dead conditional branch. Insert BARRIERs
after any blocks with no successors, but which do not have
any BARRIERs.
2001-07-06 Zack Weinberg <zackw@stanford.edu>
* varray.c (varray_check_failed): Use internal_error.
2001-07-05 Andrew Haley <aph@redhat.com>
* Makefile.in (LIB2_DIVMOD_FUNCS): New.
(LIB2FUNCS): Move divmod functions to LIB2_DIVMOD_FUNCS.
* mklibgcc.in: Compile LIB2_DIVMOD_FUNCS.
2001-07-02 Jason Merrill <jason_merrill@redhat.com>
* dwarf2out.c (mem_loc_descriptor): Only look through a constant pool
reference if the target constant is also a SYMBOL_REF.
2001-07-05 Eric Christopher <echristo@redhat.com>
* config/mips/mips.h (MASK_MIPS3900): Remove.
(MASK_MIPS16,MASK_NO_CHECK_ZERO_DIV,MASK_CHECK_RANGE_DIV,
MASK_UNINIT_CONST_IN_RODATA): Change for 3900 mask removal.
(TARGET_MIPS3900): Change to use mips_arch.
(TARGET_MIPS4000): New.
(TARGET_MIPS4100): New.
(TARGET_MIPS4300): New.
(TARGET_SWITCHES): Change 3900 and 4650 options to NULL.
(SUBTARGET_TARGET_OPTIONS): Add -march. Change help text
for -mipsX.
(GENERATE_BRANCHLIKELY): Move TARGET_MIPS3900.
(ISA_HAS_BRANCHLIKELY): To here.
(CC1_CPU_SPEC): New.
(CC1_SPEC): Use here. Remove 4650 and 3900 options.
(mips_arch_string): Declare.
(mips_arch): Declare.
(TARGET_OPTIONS): Add -march and -mtune.
* config/mips/mips.c (mips_arch_string): New.
(mips_arch): New.
(override_options): Handle -march for codegen and -mtune
for scheduling. Use mips_arch. Move tx39 target default here.
(mips_parse_cpu): Move error message to override_options.
* config/mips/r3900.h (TARGET_DEFAULT): Remove.
* config/mips/mips.md: Use TARGET_MIPS4000 and TARGET_MIPS4300.
* doc/invoke.texi (Option Summary): Add -march and -mtune entries.
(MIPS Options): Ditto. Change mcpu entry to historical text.
2001-07-05 H.J. Lu (hjl@gnu.org)
* config/mips/mips.c (mips_parse_cpu): New function to parse
-march=*/-mcpu=*.
2001-07-05 Jim Wilson <wilson@redhat.com>
* config/ia64/lib1funcs.asm: Revert 2001-07-02 change.
* config/ia64/t-ia64: Likewise.
(LIB1ASMFUNCS): Update comment.
2001-07-05 David Edelsohn <edelsohn@gnu.org>
* doc/install.texi (Install GCC: Binaries): Fix typo.
2001-07-04 Stephane Carrez <Stephane.Carrez@worldnet.fr>
* config/m68hc11/m68hc11.md ("*ashlsi3"): Operand 1 can be a memory
reference using the stack pointer, adjust it since we push Y
temporarily.
("*ashrsi3"): Likewise.
("*lshrsi3"): Likewise.
2001-07-05 Stephane Carrez <Stephane.Carrez@worldnet.fr>
* config/m68hc11/m68hc11.h (RETURN_ADDR_RTX): Fix return address
when -fomit-frame-pointer is used.
2001-07-05 Jeffrey Oldham <oldham@codesourcery.com>
* flow.c: Reverse Jan Hubicka's patch of 02July2001.
(try_redirect_by_replacing_jump): Reverse updating properly the
count and frequency information. Reverse removing cc0 setter.
(forwarder_block_p): Reverse fixing for fallthru blocks.
2001-07-05 DJ Delorie <dj@redhat.com>
* gcc.c (TARGET_OPTION_TRANSLATE_TABLE): New.
(translate_options): If the above is defined, use it to map
given options to new options.
* doc/tm.texi: Document it.
2001-07-05 Brad Lucier <lucier@math.purdue.edu>
Gerald Pfeifer <pfeifer@dbai.tuwien.ac.at>
* doc/invoke.texi (Optimize Options): Document that -fgcse may
cause programs using computed gotos to run more slowly.
2001-07-05 Rainer Orth <ro@TechFak.Uni-Bielefeld.DE>
* doc/install.texi (Specific): Markup, spelling and typo fixes.
Fixed sorting.
Consistently require binutils 2.11.2, not prereleases.
(Specific, decstation-*): Canonicalize as mips-dec-*.
(Specific, i?86-*-sco3.2v5*): Remove make bootstrap requirement,
always necessary.
(Specific, m68k-altos): Removed reference to README.altos, deleted.
(Specific, mips-*): Reword MIPS C compiler requirements.
(Specific, powerpc*-*-*): New, mention --with-cpu once.
(Specific, sunv5): Removed, obsolete.
2001-07-05 Nathan Sidwell <nathan@codesourcery.com>
* dwarf2out.c (output_loc_list): Use an all ones mask for
.text asm output and don't rely on long long
literals. Reformat some long lines.
2001-07-05 Andreas Jaeger <aj@suse.de>
* doc/gcc.texi (GNU/Linux): Remove accidental re-add of GPL
section.
2001-07-04 Daniel Berlin <dan@cgsoftware.com>
* dwarf2out.c (dwarf2out_define): Update comment.
(dwarf2out_undef): Ditto.
(dwarf2out_start_source_file): Ditto.
(dwarf2out_end_source_file): Ditto.
(dwarf2out_finish): Output DW_MACINFO_end_file for primary file,
since we never call the start/end debug hook for the primary file.
2001-07-04 Kazu Hirata <kazu@hxi.com>
* config/h8300/h8300.c (get_shift_alg): Remove an extra operand
from shll.
2001-07-04 Nathan Sidwell <nathan@codesourcery.com>
* cppinit.c (remove_dup_dirs): Inform if a system include
directory is being reordered.
* doc/invoke.texi (Directory Options): GCC warns if you hide a
system include.
* doc/cpp.texi (Search Paths): Likewise.
* doc/gcc.texi (Interoperation): Remove information about
-I/usr/include.
2001-07-04 Nathan Sidwell <nathan@codesourcery.com>
* varray.h (VARRAY_TOP_GENERIC_PTR): Remove spurious parameter.
(VARRAY_TOP_CHAR_PTR): Likewise.
2001-07-04 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
* gcc.c (process_command): Don't assign elements of a const char*.
Wed Jul 4 13:40:02 2001 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
* emit-rtl.c (change_address): Don't abort if invalid address while
reload is in progress.
2001-07-04 Daniel Berlin <dan@cgsoftware.com>
* c-lex.c (cb_file_change): Pass line number to
debug_start_source_file.
(cb_undefine): Pass correct line number to debug_undef.
* toplev.c (debug_start_source_file): Add line number to
parameters. Pass it along to dwarf2out_start_source_file.
(decode_g_option): Stop resetting debug level back to normal when
we change debug formats, unless the current level is
none. (Before, -g3 -gdwarf-2 would use debug level 2, rather than
3).
* toplev.h (debug_start_source_file): Add line number to
parameters.
* dwarf2out.h (dwarf2out_start_source_file): Add line number to
parameters.
* dwarf2out.c (dwarf2out_start_source_file): Add line number to
parameters.
Output debug_macinfo data for starting file if requested.
(dwarf2out_end_source_file): Output debug_macinfo data for ending
file if requested.
(dwarf2out_define): Output debug_macinfo data for defining a macro
if requested.
(dwarf2out_undef): Output debug_macinfo data for undefining a
macro if requested.
(DEBUG_MACINFO_SECTION): New. DWARF2 macro info section name.
(DEBUG_MACINFO_SECTION_LABEL): New. DWARF2 macro info section label.
(macinfo_section_label): New. DWARF2 macro info section label.
(dwarf2out_init): If we want macro info, output the start label
for the section.
(dwarf2out_finish): If we want macro info, add a DW_AT_macro_info
attribute to the compilation unit die pointing to the macro info.
2001-07-04 Daniel Berlin <dan@cgsoftware.com>
* dwarf2out.c (new_loc_list): Move to inside #ifdef
DWARF2_DEBUGGING_INFO.
(add_loc_descr_to_loc_list): Ditto.
(output_loc_list): Ditto.
Also, fix thinko in curr not being initialized.
(gen_internal_sym): Ditto.
Wed Jul 4 13:40:02 2001 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
* emit-rtl.c (replace_equiv_address): New function.
* expr.h (replace_equiv_address): New declaration.
* explow.c (validize_mem): Call it instead of change_address and
also call if -fforce-addr and address is constant.
* expr.c: Replace more calls to change_address with adjust_address
and/or replace_equiv_address or to validize_mem.
* function.c, regmove.c, config/alpha/alpha.c: Likewise.
* config/arm/arm.md, config/clipper/clipper.md: Likewise.
* config/dsp16xx/dsp16xx.md, config/fr30/fr30.c: Likewise.
* config/i370/i370.md, config/i860/i860.md: Likewise.
* config/i960/i960.md, config/mips/mips.c: Likewise.
* config/mips/mips.md, config/pa/pa.md: Likewise.
* config/pdp11/pdp11.md, config/rs6000/rs6000.c: Likewise.
* config/rs6000/rs6000.md, config/sh/sh.md: Likewise.
2001-07-04 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
* bitmap.c (bitmap_union_of_diff): Don't use BITMAP_ALLOCA.
* bitmap.h (BITMAP_ALLOCA): Don't pass alloca as an argument to a
function.
2001-07-04 Joseph S. Myers <jsm28@cam.ac.uk>
* doc/include: New directory.
* doc/fdl.texi: Move to doc/include/fdl.texi.
* doc/texinfo.tex: Move to doc/include/texinfo.tex.
* doc/include/funding.texi, doc/include/gpl.texi: New files.
* doc/gcc.texi: Use funding.texi and gpl.texi.
* Makefile.in ($(docdir)/cpp.info, $(docdir)/gcc.info,
$(docdir)/cppinternals.info, cpp.dvi. gcc.dvi. cppinternals.dvi):
Update dependencies and use -I $(docdir)/include.
2001-07-04 Anthony Green <green@redhat.com>
* config/v850/t-v850 (v850-c.o): Add missing dependencies.
2001-07-04 Gerald Pfeifer <pfeifer@dbai.tuwien.ac.at>
* doc/install.texi (sparc64-*-*): Remove garbage.
Wed Jul 4 09:07:44 2001 Jan van Male <jan.vanmale@fenk.wau.nl>
* i386.c (ix86_expand_builtin, case IX86_BUILTIN_SETPS):
Fix typo in last change to use adjust_address.
2001-07-04 Gerald Pfeifer <pfeifer@dbai.tuwien.ac.at>
* doc/install.texi (Specific): Update information for *-*-solaris*.
Tue Jul 3 22:33:15 2001 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
* explow.c (plus_constant_wide): Reinitialize Y for restart.
2001-07-03 Stan Shebs <shebs@apple.com>
* config/darwin.h (SECTION_FUNCTION): Remove WAS_TEXT argument, remove
case for flag_no_mach_text_sections.
(EXTRA_SECTION_FUNCTIONS): Remove arg from uses of SECTION_FUNCTION.
* config/darwin.c (flag_no_mach_text_sections): Remove.
* config/darwin-protos.h (darwin_init_pragma): Remove decl.
Tue Jul 3 15:35:52 2001 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
* explow.c (plus_constant_wide, case PLUS): Call find_constant_term
and avoid checking for constant as first operand.
* recog.c (find_constant_term_loc): No longer static.
(adj_offettable_operand): Delete.
* rtl.h (adj_offsettable_operand): Delete declaration.
(find_constant_term): Add declaration.
* caller-save.c: Replace calls to adj_offsettable_operand with calls
to adjust_address.
* config/arm/arm.c, config/c4x/c4x.c: Likewise.
* config/clipper/clipper.md, config/h8300/h8300.c: Likewise.
* config/i386/i386.c, config/i386/i386.md: Likewise.
* config/i860/i860.c, config/i960/i960.c: Likewise.
* config/i960/i960.md, config/m68hc11/m68hc11.c: Likewise.
* config/m68k/m68k.c, config/m68k/m68k.md: Likewise.
* config/m88k/m88k.md, config/mcore/mcore.c: Likewise.
* config/mips/mips.c, config/mips/mips.md: Likewise.
* config/mn10200/mn10200.c, config/mn10300/mn10300.c: Likewise.
* config/ns32k/ns32k.c, config/ns32k/ns32k.md: Likewise.
* config/pa/pa.c, config/pdp11/pdp11.c: Likewise.
* config/pdp11/pdp11.md, config/sh/sh.c, config/v850/v850.c: Likewise.
* config/vax/vax.md, config/ns32k/ns32k.c: Likewise.
* config/ns32k/ns32k.md: Likewise.
2001-07-03 Zack Weinberg <zackw@stanford.edu>
* rtl.c (copy_rtx): Handle 'T' format letter.
* gensupport.c (collect_insn_data): Likewise.
* print-rtl.c (print_rtx): Print 'T' slots like 's'.
2001-07-03 Nick Clifton <nickc@cambridge.redhat.com>
* doc/invoke.texi (Directory Options): Specifiy range for <N> in
-B option. Use 'dir' not 'foo' as example directory name.
2001-07-03 Rainer Orth <ro@TechFak.Uni-Bielefeld.DE>
* config/i386/sol2.h (ASM_PREFERRED_EH_DATA_FORMAT): Define.
Fixes PRs bootstrap/3067, bootstrap/3249, bootstrap/3275.
2001-07-03 Joseph S. Myers <jsm28@cam.ac.uk>
* doc/cppinternals.texi: Improve formatting and logical markup.
2001-07-03 Andreas Jaeger <aj@suse.de>
* Makefile.in (insn-recog.o): Add dependency on reload.h.
* genrecog.c (write_header): Include reload.h for prototypes in
insn-recog.c.
2001-07-03 Neil Booth <neil@daikokuya.demon.co.uk>
config:
* i386/cygwin.h (VALID_MACHINE_DECL_ATTRIBUTE,
VALID_MACHINE_TYPE_ATTRIBUTE): Remove.
* i386/i386-protos.h (i386_pe_valid_decl_attribute_p,
i386_pe_valid_type_attribute_p): Add.
* i386/i386.c (TARGET_INITIALIZER): Override for cygwin targets.
* i386/winnt.c (i386_valid_decl_attribute_p): Return directly.
Mon Jul 2 21:52:19 2001 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
* explow.c (plus_constant_wide, case LO_SUM): New case.
(plus_constant_for_output_wide): Delete.
* rtl.h (plus_constant_for_output): Delete.
* alias.c (canon_rtx, init_alias_analysis): Call plus_constant
instead of plus_constant_for_output.
* recog.c (offsettable_address_p, adj_offsettable_operand): Likewise.
* config/darwin.c, config/arm/arm.c, config/m68k/m68k.c: Likewise.
* config/m88k/m88k.c, config/mips/mips.c, config/pa/pa.c: Likewise.
* config/rs6000/rs6000.c, config/sparc/sparc.c: Likewise.
* config/sparc/sparc.md: Likewise.
Convert some change_address calls to adjust_address.
2001-07-03 Joseph S. Myers <jsm28@cam.ac.uk>
* doc/extend.texi, doc/gcc.texi, doc/invoke.texi, doc/md.texi,
doc/rtl.texi, doc/tm.texi: Improve formatting. Improve
documentation of -std and -Wwrite-strings.
2001-07-02 Geoffrey Keating <geoffk@redhat.com>
* cse.c (canon_hash): Don't register registers in very small
register classes, as extending their lifetime might cause
reload to fail.
Mon Jul 2 23:14:00 CEST 2001 Jan Hubicka <jh@suse.cz>
* flow.c (try_redirect_by_replacing_jump): Remove cc0 setter.
* flow.c (forwarder_block_p): Fix for fallthru blocks.
(try_redirect_by_replacing_jump): Update properly the count
and frequency information.
Mon Jul 2 14:20:13 2001 Jeffrey A Law (law@cygnus.com)
* toplev.c (dump_file_index): Move SSA dumps just after first
jump dump.
(dump_file): Corresponding changes.
(rest_of_compilation): Move SSA path to just after the first
jump pass.
* doc/gcc.texi (Passes): Update due to movement of SSA path.
* doc/invoke.texi: Update dump file #s as they were completely
out of date with reality.
2001-07-02 Geoffrey Keating <geoffk@redhat.com>
* doc/tm.texi (Frame Layout): Document STACK_PUSH_CODE.
* expr.c (emit_move_insn_1): Deal with non-default
STACK_PUSH_CODE.
* expr.c (emit_single_push_insn): Fix warning.
2001-07-02 Toshiyasu Morita <toshiyasu.morita@hsa.hitachi.com>
* expr.c (emit_move_insn_1): Avoid modifying
cfun->expr->x_stack_pointer when PUSH_ROUNDING is defined.
Mon Jul 2 15:33:31 2001 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
* emit-rtl.c (adjust_address): New function.
* expr.h (adjust_address): Add declaration.
* builtins.c: Replace some calls to change_address with calls to it
or to validize_mem.
* caller-save.c, dwarf2out.c, except.c, expmed.c, expr.c: Likewise.
* function.c, config/a29k/a29k.md, config/alpha/alpha.c: Likewise.
* config/arm/arm.c, config/convex/convex.c: Likewise.
* config/dsp16xx/dsp16xx.md, config/fr30/fr30.c: Likewise.
* config/i386/i386.c, config/i386/i386.md: Likewise.
* config/ia64/ia64.c, config/ia64/ia64.md: Likewise.
* config/m32r/m32r.c, config/m68k/m68k.md: Likewise.
* config/m88k/m88k.c, config/mips/mips.md: Likewise.
* config/ns32k/ns32k.c, config/rs6000/rs6000.c: Likewise.
* config/sh/sh.c, config/sparc/sparc.md: Likewise.
2001-07-02 Jim Wilson <wilson@redhat.com>
* config/ia64/ia64.h: Delete obsolete lib1funcs.asm comment.
2001-07-02 Steve Ellcey <sje@cup.hp.com>
* config/ia64/t-ia64: Change LIB1ASMFUNCS to use single underscore.
* config/ia64/lib1funcs.asm: Change macro names to match t-ia64.
2001-07-02 Zack Weinberg <zackw@stanford.edu>
* cppinit.c (lang_defaults): New table.
(set_lang): Just read from lang_defaults into the live options
structure.
2001-07-02 Zack Weinberg <zackw@stanford.edu>
* Makefile.in (doc): Depend on $(GENERATED_MANPAGES).
* doc/.cvsignore: Add gcc.1, cpp.1, gcov.1.
* doc/gcc.1, doc/cpp.1, doc/gcov.1: Removed.
2001-07-02 Rainer Orth <ro@TechFak.Uni-Bielefeld.DE>
* doc/install.texi: Various spelling and markup fixes.
(Installing GCC): Component specific installation instructions are
gone.
Fix reference.
Warn about removing old install dir in the presence of shared libs.
(Configuration): Invoke with options target to match configure
--help.
Consistently refer to gas, gld pathnames.
Invert --enable-multilib documentation.
Remove references to old compiler versions.
Mon Jul 2 12:50:51 2001 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
* flow.c (try_simplify_condjump): Fix typo in updating fallthru flags.
2001-07-02 Rainer Orth <ro@TechFak.Uni-Bielefeld.DE>
* doc/install.texi (Specific, mips*-sgi-irix4): Split from IRIX 5
section.
(Specific, mips*-sgi-irix5): Note IDO download.
Reworded MIPS C hints.
Use GNU as instead of GAS.
Markup fixes.
Removed SGI Freeware reference, IRIX 6 only.
(Specific, mips*-sgi-irix6): Removed ranlib caveats, obsolete.
Note N64 library requirement/workaround.
Update O32 hints.
Complete list of structure passing bug victims.
2001-07-02 Gerald Pfeifer <pfeifer@dbai.tuwien.ac.at>
* doc/install.texi: Remove CVS Id.
2001-07-02 Andreas Jaeger <aj@suse.de>
* ssa-dce.c (note_inherently_necessary_set): Add unused attribute.
(find_inherently_necessary): Remove unused variable.
2001-07-02 Nathan Sidwell <nathan@codesourcery.com>
* c-common.h (TDI_inlined): New ast dump phase.
(dump_flag_name): New function.
* c-dump.c (dump_files): Add inlined phase.
(dump_flag_name): Define.
* doc/invoke.texi (-fdump-ast-inlined): Document.
Mon Jul 2 06:29:36 2001 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
* stor-layout.c (layout_decl): Revert change to handling of alignment
in packed types.
Sun Jul 1 11:53:52 2001 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
* c-common.c (decl_attributes, case A_MODE): Don't call layout_decl
for FIELD_DECL.
2001-07-01 Geoffrey Keating <geoffk@redhat.com>
* doc/tm.texi (FUNCTION_ARG): Document that the last call
is special.
2001-07-01 Nathan Sidwell <nathan@codesourcery.com>
* tlink.c (recompile_files): Remove COMPILER_PATH and
LIBRARY_PATH from the environment.
2001-07-01 Zack Weinberg <zackw@stanford.edu>
* c-common.h (enum rid): Add RID_FIRST_AT, RID_LAST_AT,
RID_LAST_PQ. Move RID_FIRST_PQ down with the other FIRST/LAST
enumerators.
(OBJC_IS_AT_KEYWORD, OBJC_IS_PQ_KEYWORD): New macros.
* c-parse.in (OBJC_STRING): Kill.
(objc_string): Decompose to [objc_string] '@' STRING.
(reswords): Take the leading '@' off all the Objective C keywords.
(objc_rid_sans_at): Kill.
(init_reswords): Don't initialize it.
(yylexname): Use OBJC_IS_AT_KEYWORD and OBJC_IS_PQ_KEYWORD.
(_yylex): Kill reconsider label. Look ahead one token after
an '@'; if we get an identifier, check whether it's an
Objective C @-keyword. If so, return the keyword. Otherwise,
put back the token and return the '@' as a terminal.
* cpplib.c (lex_macro_node): Remove unnecessary check for
leading '@' on identifier. Clarify control flow and commentary.
Sun Jul 1 11:53:52 2001 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
* cse.c (new_label_ref): Variable deleted.
(insert): Remove set of new_label_ref.
(check_for_label_ref): New function.
(cse_basic_block): Don't check new_label_ref; call check_for_label_ref.
See ChangeLog.5 for earlier changes.
From-SVN: r43861
2001-07-09 13:20:51 +02:00
|
|
|
|
case PRE_INC: case PRE_DEC: case PRE_MODIFY:
|
|
|
|
|
out = replace_equiv_address_nv (out, XEXP (XEXP (out, 0), 0));
|
|
|
|
|
break;
|
Makefile.in (c-decl.o): Depend on rtl.h and expr.h.
* Makefile.in (c-decl.o): Depend on rtl.h and expr.h.
* alias.c (struct alias_entry): alias_set is HOST_WIDE_INT.
(REG_BASE_VALUE): Remove unneeded cast to unsigned.
(get_alias_set_entry): ALIAS_SET arg is HOST_WIDE_INT.
(find_base_decl): New function, from c_find_base_decl in c-common.c.
(new_alias_set): Moved from tree.c; return is HOST_WIDE_INT.
(get_alias_set): Likewise.
Major rework to do more things and allow language-specific code
to just handle special-cases.
(record_alias_subset): Args are HOST_WIDE_INT.
(record_component_alias): Local vars are HOST_WIDE_INT.
Don't handle COMPLEX_EXPR.
(get_varargs_alias_set): Moved from builtins.c.
(get_frame_alias_set): New function.
* builtins.c (expand_builtin_return_address): Use frame alias set.
(expand_builtin_setjmp, expand_builtin_longjmp): Use alias set
for setjmp buffer.
(get_memory_rtx): Rework to use set_mem_attributes.
(get_varargs_alias_set): Deleted from here.
* c-common.c (c_apply_type_quals_to_decl): Alias sets now HOST_WIDE_INT.
(c_find_base_decl): Deleted from here.
(c_get_alias_set): Remove many cases and rework to just handle
C-specific cases.
* c-common.h (c_get_alias_set): Returns HOST_WIDE_INT.
* c-decl.c (rtl.h, expr.h): Now included.
(init_decl_processing): Call record_component_aliases on array types.
(grokdeclarator): Likewise.
Set TREE_ADDRESSABLE for all fields that are not bitfields.
* c-typeck.c (common_type): Call record_component_aliases for array.
* caller-save.c (setup_save_areas): Rework register loop for unsigned.
Set all save areas to the frame alias set.
* calls.c (initialie_argument_information): Call set_mem_attributes.
(compute_argument_addresses, expand_call): Likewise.
* explow.c (set_mem_attributes): New function.
(stabilize): Use MEM_COPY_ATTRIBUTES and force_reg.
* expr.c (struct move_by_pieces): Remove {to,from}_{struct,readonly}.
LEN and OFFSET now HOST_WIDE_INT.
(clear_by_pieces): Similar changes.
(move_by_pieces): LEN now HOST_WIDE_INT; don't set deleted fields.
(move_by_pieces_ninsns): Now returns unsigned HOST_WIDE_INT.
(move_by_pieces_1): Don't use deleted fields, use MEM_COPY_ATTRIBUTES.
(clear_by_pieces_1): Likewise.
(emit_push_insn): Call set_mem_attributes.
(expand_expr, case INDIRECT_REF): Likewise.
(expand_expr, case VAR_DECL): Call change_address.
* expr.h (ADD_PARM_SIZE, SUB_PARM_SIZE): Use host_integerp and
tree_low_cst.
(get_varargs_alias_set, get_frame_alias_set): New decls.
(record_base_value, record_alias_subset, lang_get_alias_set): Likewise.
(new_alias_set, set_mem_attributes): Likewse.
* function.c (struct temp_slot): ALIAS_SET is HOST_WIDE_INT.
(assign_stack_temp_for_type): Likewise.
Can split slot even if alias set since can copy.
Set MEM_ALIAS_SET and MEM_SET_IN_STRUCT_P.
(assign_temp): Use host_integerp and tree_low_cst.
(put_var_into_stack): Properly handle SAVE_EXPR.
(put_addressof_into_stack): Likewise.
(assign_parms): Call set_mem_attributes.
Delete #if 0 code.
(fix_lexical_address): Put reference to chain into frame alias set.
(expand_function_start): Call set_mem_attributes.
* integrate.c (expand_inline_function): Likewise.
* recog.c (adj_offsettable_operand): Use MEM_COPY_ATTRIBUTES.
* regmove.c (try_apply_stack_adjustment): Likewise.
* reload.c (push_reload, make_memloc): Likewise.
* reload1.c (alter_reg): Make alias sets for spilled pseudos.
* rtl.def (MEM): Update comment.
* rtl.h (MEM_ALIAS_SET): Now uses XCWINT.
(move_by_pieces): Change length to HOST_WIDE_INT.
(record_base_value, record_alias_subset): Delete from here.
* stmt.c (expand_decl): Call set_mem_attributes.
* stor-layout.c (finish_record_layout): Call record_component_aliases.i
* toplev.c (compile_file): Call init_alias_once earlier.
* tree.c (lang_get_alias_set, get_alias_set, new_alias_set): Deleted
from here: now in alias.c.
* tree.h (struct tree_type): alias_set is HOST_WIDE_INT.
(struct tree_decl): Likewise.
(get_alias_set, new_alias_set, lang_get_alias_set): Deleted from here.
* varasm.c (make_function_rtl, make_decl_rtl): Call set_mem_attributes.
(output_constant_def, force_const_mem): Likewise.
* cp/Makefile.in (decl.o): Include ../expr.h.
* cp/decl.c (expr.h): Include.
(init_decl_processing): Call record_component_aliases for arrays.
(grokdeclarator): Likewise.
Set TREE_ADDRESSABLE for fields that aren't bitfields.
* cp/tree.c (build_cplus_array_type_1): Call record_component_aliases.
From-SVN: r34305
2000-05-31 20:37:31 +02:00
|
|
|
|
|
[multiple changes]
Mon Jul 9 06:41:07 2001 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
* emit-rtl.c (adjust_address_nv, replace_equiv_address_nv): New fcns.
(operand_subword): Use them.
(change_address_1): Renamed from change_address; new arg VALIDATE.
* expr.h: Reflect above changes; change_address now macro.
* alias.c (canon_rtx): Use replace_equiv_address_nv instead of
making MEM.
* cselib.c (add_mem_for_addr): Likewise.
* expr.c (protect_from_queue, emit_move_insn_1): Likewise.
* regmove.c (try_apply_stack_adjustment): Likewise.
* reload.c (push_reload, make_memloc): Likewise.
* reload1.c (eliminate_regs): Likewise.
* simplify-rtx.c (simplify_replace_rtx): Likewise.
* caller-save.c (setup_save_areas): Use adjust_address_nv instead of
adjust_addess.
* combine.c (make_extraction, simplify_shift_const): Likewise.
(gen_lowpart_for_combine): Likewise.
* cse.c (gen_lowpart_if_possible): Likewise.
* function.c (fixup_var_refs_1, purge_addressof_1): Likewise.
* expr.c (expand_expr, case COMPONENT_REF): Likewise.
* optabs.c (gen_move_insn): Likewise.
* reload1.c (alter_reg): Likewise.
* simplify-rtx.c (simplify_subreg): Likewise.
* stmt.c (expand_anon_union_decl): Likewise.
* recog.c (validate_replace_rtx_1): Likewise.
(expr.h): Include.
* Makefile.in (recog.o): Add $(EXPR_H).
* explow.c (stabilize): Call replace_equiv_address.
* expr.c (move_by_pieces_1, store_by_pieces_2): Likewise.
* final.c (alter_subreg): OFFSET is HOST_WIDE_INT.
2001-07-09 Bo Thorsen <bo@suse.co.uk>
* config/i386/unix.h (ASM_OUTPUT_MI_THUNK): Fix x86-64 vtable support.
2001-07-09 Neil Booth <neil@daikokuya.demon.co.uk>
* final.c (output_addr_const): Use target opening and
closing parentheses.
* target-def.h: Define TARGET_ASM_OPEN_PAREN, TARGET_ASM_CLOSE_PAREN
defaults, add to TARGET_ASM_OUT.
* target.h (struct gcc_target): Add open_paren and close_paren.
* doc/md.texi: Update.
* doc/tm.texi: Document TARGET_ASM_FUNCTION_END_PROLOGUE,
TARGET_ASM_FUNCTION_BEGIN_EPILOGUE, TARGET_ASM_OPEN_PAREN and
TARGET_ASM_CLOSE_PAREN.
* config/i386/i386.c (TARGET_ASM_OPEN_PAREN, TARGET_ASM_CLOSE_PAREN):
Override.
* config/pdp11/pdp11.c (TARGET_ASM_OPEN_PAREN, TARGET_ASM_CLOSE_PAREN):
Override.
* config/1750a/1750a.h (ASM_OPEN_PAREN, ASM_CLOSE_PAREN): Remove.
* config/a29k/a29k.h: Similarly.
* config/alpha/alpha.h: Similarly.
* config/arc/arc.h: Similarly.
* config/arm/aof.h: Similarly.
* config/arm/aout.h: Similarly.
* config/avr/avr.h: Similarly.
* config/c4x/c4x.h: Similarly.
* config/clipper/clipper.h: Similarly.
* config/convex/convex.h: Similarly.
* config/d30v/d30v.h: Similarly.
* config/dsp16xx/dsp16xx.h: Similarly.
* config/elxsi/elxsi.h: Similarly.
* config/fr30/fr30.h: Similarly.
* config/h8300/h8300.h: Similarly.
* config/i370/i370.h: Similarly.
* config/i386/i386.h: Similarly.
* config/i860/i860.h: Similarly.
* config/i960/i960.h: Similarly.
* config/ia64/ia64.h: Similarly.
* config/m32r/m32r.h: Similarly.
* config/m68hc11/m68hc11.h: Similarly.
* config/m68k/m68k.h: Similarly.
* config/m88k/m88k.h: Similarly.
* config/mcore/mcore.h: Similarly.
* config/mips/mips.h: Similarly.
* config/mn10200/mn10200.h: Similarly.
* config/mn10300/mn10300.h: Similarly.
* config/ns32k/ns32k.h: Similarly.
* config/pa/pa.h: Similarly.
* config/pdp11/pdp11.h: Similarly.
* config/pj/pj.h: Similarly.
* config/romp/romp.h: Similarly.
* config/rs6000/rs6000.h: Similarly.
* config/sh/sh.h: Similarly.
* config/sparc/sparc.h: Similarly.
* config/v850/v850.h: Similarly.
* config/vax/vax.h: Similarly.
* config/we32k/we32k.h: Similarly.
2001-07-09 Joseph S. Myers <jsm28@cam.ac.uk>
* doc/c-tree.texi: Document representation of attributes.
2001-07-08 Joseph S. Myers <jsm28@cam.ac.uk>
* doc/tm.texi: Update some places for the rename of target to
targetm. Fix typo.
2001-07-08 Joseph S. Myers <jsm28@cam.ac.uk>
* target.h (struct gcc_target): Add insert_attributes.
* target-def.h (TARGET_INSERT_ATTRIBUTES): Define.
(TARGET_INITIALIZER): Update.
* tree.c, tree.h (default_insert_attributes): New function.
Update comments on other default functions to refer to targetm,
not target.
* doc/tm.texi (INSERT_ATTRIBUTES): Update to document
TARGET_INSERT_ATTRIBUTES.
(SET_DEFAULT_DECL_ATTRIBUTES): Remove.
* c-common.c (decl_attributes): Use targetm.insert_attributes.
Don't use PRAGMA_INSERT_ATTRIBUTES.
* Makefile.in (c-common.o): Depend on $(TARGET_H).
* c-decl.c (start_decl, start_function): Don't call
SET_DEFAULT_DECL_ATTRIBUTES.
* config/c4x/c4x.h (SET_DEFAULT_DECL_ATTRIBUTES): Don't define.
* config/c4x/c4x-protos.h (c4x_set_default_attributes): Don't
declare.
* config/c4x/c4x.c (TARGET_INSERT_ATTRIBUTES): Define.
(c4x_check_attribute): Avoid modifying attribute list itself.
(c4x_set_default_attributes): Rename to c4x_insert_attributes.
Make static.
* config/sh/sh.h (PRAGMA_INSERT_ATTRIBUTES): Don't define.
* config/sh/sh-protos.h (sh_pragma_insert_attributes): Don't
declare.
* config/sh/sh.c (TARGET_INSERT_ATTRIBUTES): Define.
(sh_pragma_insert_attributes): Rename to sh_insert_attributes.
Make static.
* config/v850/v850.h (SET_DEFAULT_DECL_ATTRIBUTES): Don't define.
* config/v850/v850-protos.h (v850_set_default_decl_attr): Don't
declare.
* config/v850/v850.c (TARGET_INSERT_ATTRIBUTES): Define.
(v850_set_default_decl_attr): Rename to v850_insert_attributes.
Adjust parameters. Make static.
2001-07-08 Joseph S. Myers <jsm28@cam.ac.uk>
* c-common.c (decl_attributes): Only take a single attributes
parameter.
* c-common.h (decl_attributes): Update prototype.
* c-decl.c (start_decl, start_function): Only take a single
attributes parameter. Update calls to decl_attributes.
(finish_struct, finish_enum): Update calls to decl_attributes.
(push_parm_decl): Expect unified list of attributes. Update call
to decl_attributes.
* c-parse.in (fndef, initdcl, notype_initdcl, nested_function,
notype_nested_function, component_declarator,
component_notype_declarator, label): Update calls to
decl_attributes.
(absdcl_maybe_attribute, parm, firstparm, myparm): Unify attribute
lists that are passed to push_parm_decl.
* c-tree.h (start_function, start_decl): Update prototypes.
* config/sh/sh-protos.h, config/sh/sh.c
(sh_pragma_insert_attributes): Only take a single attributes
parameter.
* config/sh/sh.h (PRAGMA_INSERT_ATTRIBUTES): Likewise.
* doc/tm.texi (INSERT_ATTRIBUTES): Update.
* objc/objc-act.c (define_decl, generate_objc_symtab_decl,
build_module_descriptor, generate_static_references,
generate_strings, build_selector_translation_table,
generate_descriptor_table, generate_protocols,
generate_ivars_list, generate_dispatch_table,
generate_protocol_list, generate_category,
generate_shared_structures, really_start_method, add_objc_decls,
generate_classref_translation_entry): Update calls to start_decl
and start_function.
(build_tmp_function_decl, start_method_def): Unify attribute lists
that are passed to push_parm_decl.
2001-07-08 Neil Booth <neil@daikokuya.demon.co.uk>
* final.c (no_asm_to_stream): New.
(final_scan_insn): Use target structures for prologue ends
and epilogue starts.
* output.h (no_asm_to_stream): New.
* target-def.h (TARGET_ASM_FUNCTION_END_PROLOGUE,
TARGET_ASM_FUNCTION_BEGIN_EPILOGUE): New.
(TARGET_ASM_OUT): Update.
* target.h (struct gcc_target): New members function_end_prologue
and function_begin_epilogue.
* config/1750/1750.h (ASM_OUTPUT_FUNNAM): Delete as unused.
* config/alpha/alpha-protos.h (output_end_prologue): Delete.
* config/alpha/alpha.c (output_end_prologue): Rename to
alpha_output_function_end_prologue. Use in target struct
and make static.
* config/alpha/alpha.h (FUNCTION_END_PROLOGUE): Delete.
* config/ia64/ia64-protos.h (ia64_output_end_prologue): Delete.
* config/ia64/ia64.c (ia64_output_end_prologue): Rename to
ia64_output_function_end_prologue. Use in target struct
and make static.
(ia64_function_prologue, ia64_funciton_epilogue): Rename
mistyped prototypes.
* config/ia64/ia64.h (FUNCTION_END_PROLOGUE): Delete.
* config/m88k/m88k-protos.h (m88k_end_prologue, m88k_begin_epilogue):
Delete.
* config/m88k/m88k.c (m88k_end_prologue, m88k_begin_epilogue): Rename
an use in target struct, make static.
* config/ia64/ia64.h (FUNCTION_END_PROLOGUE, FUNCTION_BEGIN_EPILOGUE):
Delete.
2001-07-08 Richard Henderson <rth@redhat.com>
* stmt.c (emit_case_nodes): Convert modes properly in low+high test.
2001-07-08 Richard Henderson <rth@redhat.com>
* config/i386/i386.md: Remove constraints strings from define_split
and define_peephole2 patterns.
(eh_return_si, eh_return_di): Split eh_return_1 for modes.
(eh_return): Use them.
2001-07-08 Richard Henderson <rth@redhat.com>
* doc/tm.texi (Exception Handling): New subnode of Stack and Calling.
Document MD_FALLBACK_FRAME_STATE_FOR.
2001-07-07 Stephane Carrez <Stephane.Carrez@worldnet.fr>
* config/m68hc11/m68hc11.c (m68hc11_initial_elimination_offset):
Take into account m68hc11_sp_correction for FRAME_POINTER_REGNUM
elimination.
* config/m68hc11/m68hc11.h (STARTING_FRAME_OFFSET): Use 0.
2001-07-07 Nick Clifton <nickc@cambridge.redhat.com>
* config/ia64/sysv4.h (ASM_OUTPUT_LABELREF): Append # to end
of the label inside NAME as opposed to just the end of NAME.
2001-07-07 Neil Booth <neil@daikokuya.demon.co.uk>
* config/alpha/alpha-protos.h (vms_valid_decl_attribute_p): Delete.
* config/alpha/alpha.c (alpha_init_machine_status,
alpha_mark_machine_status, alpha_free_machine_status): Delete.
(TARGET_VALID_DECL_ATTRIBUTE): Define for VMS.
(vms_valid_decl_attribute_p): Make static, conditionally compile.
* config/alpha/alpha.h (VALID_MACHINE_DECL_ATTRIBUTE): Delete.
2001-07-06 Stan Shebs <shebs@apple.com>
* target.h (targetm): Rename global from "target", so as not to
conflict with local variables.
* c-decl.c: Ditto.
* c-typeck.c: Ditto.
* final.c: Ditto.
* tree.c: Ditto.
* cp/decl.c: Ditto.
* cp/decl2.c: Ditto.
* cp/typeck.c: Ditto.
* 1750a/1750a.c: Ditto.
* a29k/a29k.c: Ditto.
* arc/arc.c: Ditto.
* arm/arm.c: Ditto.
* avr/avr.c: Ditto.
* clipper/clipper.c: Ditto.
* convex/convex.c: Ditto.
* d30v/d30v.c: Ditto.
* dsp16xx/dsp16xx.c: Ditto.
* elxsi/elxsi.c: Ditto.
* fr30/fr30.c: Ditto.
* h8300/h8300.c: Ditto.
* i370/i370.c: Ditto.
* i386/i386.c: Ditto.
* i860/i860.c: Ditto.
* i960/i960.c: Ditto.
* ia64/ia64.c: Ditto.
* m32r/m32r.c: Ditto.
* m68hc11/m68hc11.c: Ditto.
* m68k/m68k.c: Ditto.
* m88k/m88k.c: Ditto.
* mips/mips.c: Ditto.
* ns32k/ns32k.c: Ditto.
* pa/pa.c: Ditto.
* pdp11/pdp11.c: Ditto.
* romp/romp.c: Ditto.
* rs6000/rs6000.c: Ditto.
* sh/sh.c: Ditto.
* sparc/sparc.c: Ditto.
* vax/vax.c: Ditto.
* we32k/we32k.c: Ditto.
* doc/tm.texi: Update the manual to match.
2001-07-06 Richard Henderson <rth@redhat.com>
* except.h (MUST_USE_SJLJ_EXCEPTIONS): Examine the value of
DWARF2_UNWIND_INFO not just whether it is defined.
2001-07-06 Diego Novillo <dnovillo@redhat.com>
* combine.c (combine_simplify_rtx): Also recompute 'mode' if the
call to simplify_binary_operation returns a new pattern.
2001-07-06 Roman Lechtchinsky <rl@cs.tu-berlin.de>
* glimits.h (__SHRT_MAX__): New.
(SHRT_MIN, USHRT_MAX): Define in terms of SHRT_MAX.
(SHRT_MAX): Define in terms of __SHRT_MAX__.
2001-07-06 Jan van Male <jan.vanmale@fenk.wau.nl>
* alias.c (base_alias_check): Cast GET_MODE_UNIT_SIZE to int to
avoid warnings.
2001-07-06 Richard Henderson <rth@redhat.com>
* bitmap.c (bitmap_release_memory): Move adjacent to the
allocation functions.
(bitmap_first_set_bit, bitmap_last_set_bit): Streamline knowing
the implementation. Binary search for the set bit.
(bitmap_union_of_diff): Allocate the temporary on the stack
instead of using xmalloc.
2001-07-06 Richard Henderson <rth@redhat.com>
* genrecog.c (validate_pattern): Warn for constraints in
define_{expand,split,peephole2}. Remove strict_low_part
before looking up match_dup.
2001-07-06 DJ Delorie <dj@redhat.com>
* doc/gcc.texi (Makefile): Rename to be a more general purpose
chapter about various build hints and history. Add section
talking about the various types of native and cross builds.
2001-07-06 Neil Booth <neil@daikokuya.demon.co.uk>
* Makefile.in (final.o): Depend on target.h.
* final.c: Include target.h.
(default_function_pro_epilogue): New.
(final_start_function): Use target structure for function prologues.
(final_end_function): Use target structure for function epilogues.
* fold-const.c (real_hex_to_f): Constify s and p.
* output.h (default_function_pro_epilogue): New.
* real.h (real_hex_to_f): Update prototype.
* target-def.h (TARGET_ASM_FUNCTION_PROLOGUE,
TARGET_ASM_FUNCTION_EPILOGUE, TARGET_ASM_OUT): New.
(TARGET_INITIALIZER): Update.
* target.h (gcc_target): Add struct asm_out.
* doc/tm.texi: Update.
config:
Update each arch to use TARGET_ASM_FUNCTION_PROLOGUE and
TARGET_ASM_FUNCTION_EPILOGUE. Move macro code to functions
in cpu/cpu.c, or rename old functions consistently. Take
a HOST_WIDE INT not an int as the SIZE parameter. Remove now
redundant macros and prototypes. Make new functions static.
* 1750a/1750a.c: Similarly.
* 1750a/1750a.h: Similarly.
* a29k/a29k-protos.h: Similarly.
* a29k/a29k.c: Similarly.
* a29k/a29k.h: Similarly.
* arc/arc-protos.h: Similarly.
* arc/arc.c: Similarly.
* arc/arc.h: Similarly.
* arm/arm-protos.h: Similarly.
* arm/arm.c: Similarly.
* arm/arm.h: Similarly.
* avr/avr-protos.h: Similarly.
* avr/avr.c: Similarly.
* avr/avr.h: Similarly.
* clipper/clipper-protos.h: Similarly.
* clipper/clipper.c: Similarly.
* clipper/clipper.h: Similarly.
* convex/convex.c: Similarly.
* convex/convex.h: Similarly.
* d30v/d30v-protos.h: Similarly.
* d30v/d30v.c: Similarly.
* d30v/d30v.h: Similarly.
* d30v/d30v.md: Similarly.
* dsp16xx/dsp16xx-protos.h: Similarly.
* dsp16xx/dsp16xx.c: Similarly.
* dsp16xx/dsp16xx.h: Similarly.
* elxsi/elxsi.c: Similarly.
* elxsi/elxsi.h: Similarly.
* fr30/fr30.c: Similarly.
* fr30/fr30.md: Similarly.
* h8300/h8300-protos.h: Similarly.
* h8300/h8300.c: Similarly.
* h8300/h8300.h: Similarly.
* i370/i370-protos.h: Similarly.
* i370/i370.c: Similarly.
* i370/i370.h: Similarly.
* i386/i386.c: Similarly.
* i386/osf1elf.h: Similarly.
* i386/osfrose.h: Similarly.
* i860/i860-protos.h: Similarly.
* i860/i860.c: Similarly.
* i860/i860.h: Similarly.
* i960/i960-protos.h: Similarly.
* i960/i960.c: Similarly.
* i960/i960.h: Similarly.
* ia64/ia64-protos.h: Similarly.
* ia64/ia64.c: Similarly.
* ia64/ia64.h: Similarly.
* m32r/m32r-protos.h: Similarly.
* m32r/m32r.c: Similarly.
* m32r/m32r.h: Similarly.
* m68hc11/m68hc11-protos.h: Similarly.
* m68hc11/m68hc11.c: Similarly.
* m68hc11/m68hc11.h: Similarly.
* m68k/crds.h: Similarly.
* m68k/dpx2.h: Similarly.
* m68k/m68k-protos.h: Similarly.
* m68k/m68k.c: Similarly.
* m68k/m68k.h: Similarly.
* m68k/news.h: Similarly.
* m88k/m88k-protos.h: Similarly.
* m88k/m88k.c: Similarly.
* m88k/m88k.h: Similarly.
* mips/mips-protos.h: Similarly.
* mips/mips.c: Similarly.
* mips/mips.h: Similarly.
* ns32k/merlin.h: Similarly.
* ns32k/ns32k.c: Similarly.
* ns32k/ns32k.h: Similarly.
* ns32k/tek6000.h: Similarly.
* pa/pa-protos.h: Similarly.
* pa/pa.c: Similarly.
* pa/pa.h: Similarly.
* pdp11/2bsd.h: Similarly.
* pdp11/pdp11-protos.h: Similarly.
* pdp11/pdp11.c: Similarly.
* pdp11/pdp11.h: Similarly.
* romp/romp-protos.h: Similarly.
* romp/romp.c: Similarly.
* romp/romp.h: Similarly.
* rs6000/rs6000-protos.h: Similarly.
* rs6000/rs6000.c: Similarly.
* rs6000/rs6000.h: Similarly.
* rs6000/sysv4.h: Similarly.
* sh/sh-protos.h: Similarly.
* sh/sh.c: Similarly.
* sh/sh.h: Similarly.
* sparc/sparc-protos.h: Similarly.
* sparc/sparc.c: Similarly.
* sparc/sparc.h: Similarly.
* vax/vax.c: Similarly.
* vax/vax.h: Similarly.
* vax/vms.h: Similarly.
* we32k/we32k.c: Similarly.
* we32k/we32k.h: Similarly.
Fri Jul 6 11:47:59 2001 Jeffrey A Law (law@cygnus.com)
* basic-block.h (first_insn_after_basic_block_note): Declare.
* flow.c (first_insn_after_basic_block_note): Define. Moved
from...
* ssa.c (first_insn_after_basic_block_note): Remove.
* ssa-dce.c (find_inherently_necessary): Consider BARRIERs
necessary.
(ssa_eliminate_dead_code): Properly update the CFG and PHI
nodes when we find a dead conditional branch. Insert BARRIERs
after any blocks with no successors, but which do not have
any BARRIERs.
2001-07-06 Zack Weinberg <zackw@stanford.edu>
* varray.c (varray_check_failed): Use internal_error.
2001-07-05 Andrew Haley <aph@redhat.com>
* Makefile.in (LIB2_DIVMOD_FUNCS): New.
(LIB2FUNCS): Move divmod functions to LIB2_DIVMOD_FUNCS.
* mklibgcc.in: Compile LIB2_DIVMOD_FUNCS.
2001-07-02 Jason Merrill <jason_merrill@redhat.com>
* dwarf2out.c (mem_loc_descriptor): Only look through a constant pool
reference if the target constant is also a SYMBOL_REF.
2001-07-05 Eric Christopher <echristo@redhat.com>
* config/mips/mips.h (MASK_MIPS3900): Remove.
(MASK_MIPS16,MASK_NO_CHECK_ZERO_DIV,MASK_CHECK_RANGE_DIV,
MASK_UNINIT_CONST_IN_RODATA): Change for 3900 mask removal.
(TARGET_MIPS3900): Change to use mips_arch.
(TARGET_MIPS4000): New.
(TARGET_MIPS4100): New.
(TARGET_MIPS4300): New.
(TARGET_SWITCHES): Change 3900 and 4650 options to NULL.
(SUBTARGET_TARGET_OPTIONS): Add -march. Change help text
for -mipsX.
(GENERATE_BRANCHLIKELY): Move TARGET_MIPS3900.
(ISA_HAS_BRANCHLIKELY): To here.
(CC1_CPU_SPEC): New.
(CC1_SPEC): Use here. Remove 4650 and 3900 options.
(mips_arch_string): Declare.
(mips_arch): Declare.
(TARGET_OPTIONS): Add -march and -mtune.
* config/mips/mips.c (mips_arch_string): New.
(mips_arch): New.
(override_options): Handle -march for codegen and -mtune
for scheduling. Use mips_arch. Move tx39 target default here.
(mips_parse_cpu): Move error message to override_options.
* config/mips/r3900.h (TARGET_DEFAULT): Remove.
* config/mips/mips.md: Use TARGET_MIPS4000 and TARGET_MIPS4300.
* doc/invoke.texi (Option Summary): Add -march and -mtune entries.
(MIPS Options): Ditto. Change mcpu entry to historical text.
2001-07-05 H.J. Lu (hjl@gnu.org)
* config/mips/mips.c (mips_parse_cpu): New function to parse
-march=*/-mcpu=*.
2001-07-05 Jim Wilson <wilson@redhat.com>
* config/ia64/lib1funcs.asm: Revert 2001-07-02 change.
* config/ia64/t-ia64: Likewise.
(LIB1ASMFUNCS): Update comment.
2001-07-05 David Edelsohn <edelsohn@gnu.org>
* doc/install.texi (Install GCC: Binaries): Fix typo.
2001-07-04 Stephane Carrez <Stephane.Carrez@worldnet.fr>
* config/m68hc11/m68hc11.md ("*ashlsi3"): Operand 1 can be a memory
reference using the stack pointer, adjust it since we push Y
temporarily.
("*ashrsi3"): Likewise.
("*lshrsi3"): Likewise.
2001-07-05 Stephane Carrez <Stephane.Carrez@worldnet.fr>
* config/m68hc11/m68hc11.h (RETURN_ADDR_RTX): Fix return address
when -fomit-frame-pointer is used.
2001-07-05 Jeffrey Oldham <oldham@codesourcery.com>
* flow.c: Reverse Jan Hubicka's patch of 02July2001.
(try_redirect_by_replacing_jump): Reverse updating properly the
count and frequency information. Reverse removing cc0 setter.
(forwarder_block_p): Reverse fixing for fallthru blocks.
2001-07-05 DJ Delorie <dj@redhat.com>
* gcc.c (TARGET_OPTION_TRANSLATE_TABLE): New.
(translate_options): If the above is defined, use it to map
given options to new options.
* doc/tm.texi: Document it.
2001-07-05 Brad Lucier <lucier@math.purdue.edu>
Gerald Pfeifer <pfeifer@dbai.tuwien.ac.at>
* doc/invoke.texi (Optimize Options): Document that -fgcse may
cause programs using computed gotos to run more slowly.
2001-07-05 Rainer Orth <ro@TechFak.Uni-Bielefeld.DE>
* doc/install.texi (Specific): Markup, spelling and typo fixes.
Fixed sorting.
Consistently require binutils 2.11.2, not prereleases.
(Specific, decstation-*): Canonicalize as mips-dec-*.
(Specific, i?86-*-sco3.2v5*): Remove make bootstrap requirement,
always necessary.
(Specific, m68k-altos): Removed reference to README.altos, deleted.
(Specific, mips-*): Reword MIPS C compiler requirements.
(Specific, powerpc*-*-*): New, mention --with-cpu once.
(Specific, sunv5): Removed, obsolete.
2001-07-05 Nathan Sidwell <nathan@codesourcery.com>
* dwarf2out.c (output_loc_list): Use an all ones mask for
.text asm output and don't rely on long long
literals. Reformat some long lines.
2001-07-05 Andreas Jaeger <aj@suse.de>
* doc/gcc.texi (GNU/Linux): Remove accidental re-add of GPL
section.
2001-07-04 Daniel Berlin <dan@cgsoftware.com>
* dwarf2out.c (dwarf2out_define): Update comment.
(dwarf2out_undef): Ditto.
(dwarf2out_start_source_file): Ditto.
(dwarf2out_end_source_file): Ditto.
(dwarf2out_finish): Output DW_MACINFO_end_file for primary file,
since we never call the start/end debug hook for the primary file.
2001-07-04 Kazu Hirata <kazu@hxi.com>
* config/h8300/h8300.c (get_shift_alg): Remove an extra operand
from shll.
2001-07-04 Nathan Sidwell <nathan@codesourcery.com>
* cppinit.c (remove_dup_dirs): Inform if a system include
directory is being reordered.
* doc/invoke.texi (Directory Options): GCC warns if you hide a
system include.
* doc/cpp.texi (Search Paths): Likewise.
* doc/gcc.texi (Interoperation): Remove information about
-I/usr/include.
2001-07-04 Nathan Sidwell <nathan@codesourcery.com>
* varray.h (VARRAY_TOP_GENERIC_PTR): Remove spurious parameter.
(VARRAY_TOP_CHAR_PTR): Likewise.
2001-07-04 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
* gcc.c (process_command): Don't assign elements of a const char*.
Wed Jul 4 13:40:02 2001 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
* emit-rtl.c (change_address): Don't abort if invalid address while
reload is in progress.
2001-07-04 Daniel Berlin <dan@cgsoftware.com>
* c-lex.c (cb_file_change): Pass line number to
debug_start_source_file.
(cb_undefine): Pass correct line number to debug_undef.
* toplev.c (debug_start_source_file): Add line number to
parameters. Pass it along to dwarf2out_start_source_file.
(decode_g_option): Stop resetting debug level back to normal when
we change debug formats, unless the current level is
none. (Before, -g3 -gdwarf-2 would use debug level 2, rather than
3).
* toplev.h (debug_start_source_file): Add line number to
parameters.
* dwarf2out.h (dwarf2out_start_source_file): Add line number to
parameters.
* dwarf2out.c (dwarf2out_start_source_file): Add line number to
parameters.
Output debug_macinfo data for starting file if requested.
(dwarf2out_end_source_file): Output debug_macinfo data for ending
file if requested.
(dwarf2out_define): Output debug_macinfo data for defining a macro
if requested.
(dwarf2out_undef): Output debug_macinfo data for undefining a
macro if requested.
(DEBUG_MACINFO_SECTION): New. DWARF2 macro info section name.
(DEBUG_MACINFO_SECTION_LABEL): New. DWARF2 macro info section label.
(macinfo_section_label): New. DWARF2 macro info section label.
(dwarf2out_init): If we want macro info, output the start label
for the section.
(dwarf2out_finish): If we want macro info, add a DW_AT_macro_info
attribute to the compilation unit die pointing to the macro info.
2001-07-04 Daniel Berlin <dan@cgsoftware.com>
* dwarf2out.c (new_loc_list): Move to inside #ifdef
DWARF2_DEBUGGING_INFO.
(add_loc_descr_to_loc_list): Ditto.
(output_loc_list): Ditto.
Also, fix thinko in curr not being initialized.
(gen_internal_sym): Ditto.
Wed Jul 4 13:40:02 2001 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
* emit-rtl.c (replace_equiv_address): New function.
* expr.h (replace_equiv_address): New declaration.
* explow.c (validize_mem): Call it instead of change_address and
also call if -fforce-addr and address is constant.
* expr.c: Replace more calls to change_address with adjust_address
and/or replace_equiv_address or to validize_mem.
* function.c, regmove.c, config/alpha/alpha.c: Likewise.
* config/arm/arm.md, config/clipper/clipper.md: Likewise.
* config/dsp16xx/dsp16xx.md, config/fr30/fr30.c: Likewise.
* config/i370/i370.md, config/i860/i860.md: Likewise.
* config/i960/i960.md, config/mips/mips.c: Likewise.
* config/mips/mips.md, config/pa/pa.md: Likewise.
* config/pdp11/pdp11.md, config/rs6000/rs6000.c: Likewise.
* config/rs6000/rs6000.md, config/sh/sh.md: Likewise.
2001-07-04 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
* bitmap.c (bitmap_union_of_diff): Don't use BITMAP_ALLOCA.
* bitmap.h (BITMAP_ALLOCA): Don't pass alloca as an argument to a
function.
2001-07-04 Joseph S. Myers <jsm28@cam.ac.uk>
* doc/include: New directory.
* doc/fdl.texi: Move to doc/include/fdl.texi.
* doc/texinfo.tex: Move to doc/include/texinfo.tex.
* doc/include/funding.texi, doc/include/gpl.texi: New files.
* doc/gcc.texi: Use funding.texi and gpl.texi.
* Makefile.in ($(docdir)/cpp.info, $(docdir)/gcc.info,
$(docdir)/cppinternals.info, cpp.dvi. gcc.dvi. cppinternals.dvi):
Update dependencies and use -I $(docdir)/include.
2001-07-04 Anthony Green <green@redhat.com>
* config/v850/t-v850 (v850-c.o): Add missing dependencies.
2001-07-04 Gerald Pfeifer <pfeifer@dbai.tuwien.ac.at>
* doc/install.texi (sparc64-*-*): Remove garbage.
Wed Jul 4 09:07:44 2001 Jan van Male <jan.vanmale@fenk.wau.nl>
* i386.c (ix86_expand_builtin, case IX86_BUILTIN_SETPS):
Fix typo in last change to use adjust_address.
2001-07-04 Gerald Pfeifer <pfeifer@dbai.tuwien.ac.at>
* doc/install.texi (Specific): Update information for *-*-solaris*.
Tue Jul 3 22:33:15 2001 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
* explow.c (plus_constant_wide): Reinitialize Y for restart.
2001-07-03 Stan Shebs <shebs@apple.com>
* config/darwin.h (SECTION_FUNCTION): Remove WAS_TEXT argument, remove
case for flag_no_mach_text_sections.
(EXTRA_SECTION_FUNCTIONS): Remove arg from uses of SECTION_FUNCTION.
* config/darwin.c (flag_no_mach_text_sections): Remove.
* config/darwin-protos.h (darwin_init_pragma): Remove decl.
Tue Jul 3 15:35:52 2001 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
* explow.c (plus_constant_wide, case PLUS): Call find_constant_term
and avoid checking for constant as first operand.
* recog.c (find_constant_term_loc): No longer static.
(adj_offettable_operand): Delete.
* rtl.h (adj_offsettable_operand): Delete declaration.
(find_constant_term): Add declaration.
* caller-save.c: Replace calls to adj_offsettable_operand with calls
to adjust_address.
* config/arm/arm.c, config/c4x/c4x.c: Likewise.
* config/clipper/clipper.md, config/h8300/h8300.c: Likewise.
* config/i386/i386.c, config/i386/i386.md: Likewise.
* config/i860/i860.c, config/i960/i960.c: Likewise.
* config/i960/i960.md, config/m68hc11/m68hc11.c: Likewise.
* config/m68k/m68k.c, config/m68k/m68k.md: Likewise.
* config/m88k/m88k.md, config/mcore/mcore.c: Likewise.
* config/mips/mips.c, config/mips/mips.md: Likewise.
* config/mn10200/mn10200.c, config/mn10300/mn10300.c: Likewise.
* config/ns32k/ns32k.c, config/ns32k/ns32k.md: Likewise.
* config/pa/pa.c, config/pdp11/pdp11.c: Likewise.
* config/pdp11/pdp11.md, config/sh/sh.c, config/v850/v850.c: Likewise.
* config/vax/vax.md, config/ns32k/ns32k.c: Likewise.
* config/ns32k/ns32k.md: Likewise.
2001-07-03 Zack Weinberg <zackw@stanford.edu>
* rtl.c (copy_rtx): Handle 'T' format letter.
* gensupport.c (collect_insn_data): Likewise.
* print-rtl.c (print_rtx): Print 'T' slots like 's'.
2001-07-03 Nick Clifton <nickc@cambridge.redhat.com>
* doc/invoke.texi (Directory Options): Specifiy range for <N> in
-B option. Use 'dir' not 'foo' as example directory name.
2001-07-03 Rainer Orth <ro@TechFak.Uni-Bielefeld.DE>
* config/i386/sol2.h (ASM_PREFERRED_EH_DATA_FORMAT): Define.
Fixes PRs bootstrap/3067, bootstrap/3249, bootstrap/3275.
2001-07-03 Joseph S. Myers <jsm28@cam.ac.uk>
* doc/cppinternals.texi: Improve formatting and logical markup.
2001-07-03 Andreas Jaeger <aj@suse.de>
* Makefile.in (insn-recog.o): Add dependency on reload.h.
* genrecog.c (write_header): Include reload.h for prototypes in
insn-recog.c.
2001-07-03 Neil Booth <neil@daikokuya.demon.co.uk>
config:
* i386/cygwin.h (VALID_MACHINE_DECL_ATTRIBUTE,
VALID_MACHINE_TYPE_ATTRIBUTE): Remove.
* i386/i386-protos.h (i386_pe_valid_decl_attribute_p,
i386_pe_valid_type_attribute_p): Add.
* i386/i386.c (TARGET_INITIALIZER): Override for cygwin targets.
* i386/winnt.c (i386_valid_decl_attribute_p): Return directly.
Mon Jul 2 21:52:19 2001 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
* explow.c (plus_constant_wide, case LO_SUM): New case.
(plus_constant_for_output_wide): Delete.
* rtl.h (plus_constant_for_output): Delete.
* alias.c (canon_rtx, init_alias_analysis): Call plus_constant
instead of plus_constant_for_output.
* recog.c (offsettable_address_p, adj_offsettable_operand): Likewise.
* config/darwin.c, config/arm/arm.c, config/m68k/m68k.c: Likewise.
* config/m88k/m88k.c, config/mips/mips.c, config/pa/pa.c: Likewise.
* config/rs6000/rs6000.c, config/sparc/sparc.c: Likewise.
* config/sparc/sparc.md: Likewise.
Convert some change_address calls to adjust_address.
2001-07-03 Joseph S. Myers <jsm28@cam.ac.uk>
* doc/extend.texi, doc/gcc.texi, doc/invoke.texi, doc/md.texi,
doc/rtl.texi, doc/tm.texi: Improve formatting. Improve
documentation of -std and -Wwrite-strings.
2001-07-02 Geoffrey Keating <geoffk@redhat.com>
* cse.c (canon_hash): Don't register registers in very small
register classes, as extending their lifetime might cause
reload to fail.
Mon Jul 2 23:14:00 CEST 2001 Jan Hubicka <jh@suse.cz>
* flow.c (try_redirect_by_replacing_jump): Remove cc0 setter.
* flow.c (forwarder_block_p): Fix for fallthru blocks.
(try_redirect_by_replacing_jump): Update properly the count
and frequency information.
Mon Jul 2 14:20:13 2001 Jeffrey A Law (law@cygnus.com)
* toplev.c (dump_file_index): Move SSA dumps just after first
jump dump.
(dump_file): Corresponding changes.
(rest_of_compilation): Move SSA path to just after the first
jump pass.
* doc/gcc.texi (Passes): Update due to movement of SSA path.
* doc/invoke.texi: Update dump file #s as they were completely
out of date with reality.
2001-07-02 Geoffrey Keating <geoffk@redhat.com>
* doc/tm.texi (Frame Layout): Document STACK_PUSH_CODE.
* expr.c (emit_move_insn_1): Deal with non-default
STACK_PUSH_CODE.
* expr.c (emit_single_push_insn): Fix warning.
2001-07-02 Toshiyasu Morita <toshiyasu.morita@hsa.hitachi.com>
* expr.c (emit_move_insn_1): Avoid modifying
cfun->expr->x_stack_pointer when PUSH_ROUNDING is defined.
Mon Jul 2 15:33:31 2001 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
* emit-rtl.c (adjust_address): New function.
* expr.h (adjust_address): Add declaration.
* builtins.c: Replace some calls to change_address with calls to it
or to validize_mem.
* caller-save.c, dwarf2out.c, except.c, expmed.c, expr.c: Likewise.
* function.c, config/a29k/a29k.md, config/alpha/alpha.c: Likewise.
* config/arm/arm.c, config/convex/convex.c: Likewise.
* config/dsp16xx/dsp16xx.md, config/fr30/fr30.c: Likewise.
* config/i386/i386.c, config/i386/i386.md: Likewise.
* config/ia64/ia64.c, config/ia64/ia64.md: Likewise.
* config/m32r/m32r.c, config/m68k/m68k.md: Likewise.
* config/m88k/m88k.c, config/mips/mips.md: Likewise.
* config/ns32k/ns32k.c, config/rs6000/rs6000.c: Likewise.
* config/sh/sh.c, config/sparc/sparc.md: Likewise.
2001-07-02 Jim Wilson <wilson@redhat.com>
* config/ia64/ia64.h: Delete obsolete lib1funcs.asm comment.
2001-07-02 Steve Ellcey <sje@cup.hp.com>
* config/ia64/t-ia64: Change LIB1ASMFUNCS to use single underscore.
* config/ia64/lib1funcs.asm: Change macro names to match t-ia64.
2001-07-02 Zack Weinberg <zackw@stanford.edu>
* cppinit.c (lang_defaults): New table.
(set_lang): Just read from lang_defaults into the live options
structure.
2001-07-02 Zack Weinberg <zackw@stanford.edu>
* Makefile.in (doc): Depend on $(GENERATED_MANPAGES).
* doc/.cvsignore: Add gcc.1, cpp.1, gcov.1.
* doc/gcc.1, doc/cpp.1, doc/gcov.1: Removed.
2001-07-02 Rainer Orth <ro@TechFak.Uni-Bielefeld.DE>
* doc/install.texi: Various spelling and markup fixes.
(Installing GCC): Component specific installation instructions are
gone.
Fix reference.
Warn about removing old install dir in the presence of shared libs.
(Configuration): Invoke with options target to match configure
--help.
Consistently refer to gas, gld pathnames.
Invert --enable-multilib documentation.
Remove references to old compiler versions.
Mon Jul 2 12:50:51 2001 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
* flow.c (try_simplify_condjump): Fix typo in updating fallthru flags.
2001-07-02 Rainer Orth <ro@TechFak.Uni-Bielefeld.DE>
* doc/install.texi (Specific, mips*-sgi-irix4): Split from IRIX 5
section.
(Specific, mips*-sgi-irix5): Note IDO download.
Reworded MIPS C hints.
Use GNU as instead of GAS.
Markup fixes.
Removed SGI Freeware reference, IRIX 6 only.
(Specific, mips*-sgi-irix6): Removed ranlib caveats, obsolete.
Note N64 library requirement/workaround.
Update O32 hints.
Complete list of structure passing bug victims.
2001-07-02 Gerald Pfeifer <pfeifer@dbai.tuwien.ac.at>
* doc/install.texi: Remove CVS Id.
2001-07-02 Andreas Jaeger <aj@suse.de>
* ssa-dce.c (note_inherently_necessary_set): Add unused attribute.
(find_inherently_necessary): Remove unused variable.
2001-07-02 Nathan Sidwell <nathan@codesourcery.com>
* c-common.h (TDI_inlined): New ast dump phase.
(dump_flag_name): New function.
* c-dump.c (dump_files): Add inlined phase.
(dump_flag_name): Define.
* doc/invoke.texi (-fdump-ast-inlined): Document.
Mon Jul 2 06:29:36 2001 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
* stor-layout.c (layout_decl): Revert change to handling of alignment
in packed types.
Sun Jul 1 11:53:52 2001 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
* c-common.c (decl_attributes, case A_MODE): Don't call layout_decl
for FIELD_DECL.
2001-07-01 Geoffrey Keating <geoffk@redhat.com>
* doc/tm.texi (FUNCTION_ARG): Document that the last call
is special.
2001-07-01 Nathan Sidwell <nathan@codesourcery.com>
* tlink.c (recompile_files): Remove COMPILER_PATH and
LIBRARY_PATH from the environment.
2001-07-01 Zack Weinberg <zackw@stanford.edu>
* c-common.h (enum rid): Add RID_FIRST_AT, RID_LAST_AT,
RID_LAST_PQ. Move RID_FIRST_PQ down with the other FIRST/LAST
enumerators.
(OBJC_IS_AT_KEYWORD, OBJC_IS_PQ_KEYWORD): New macros.
* c-parse.in (OBJC_STRING): Kill.
(objc_string): Decompose to [objc_string] '@' STRING.
(reswords): Take the leading '@' off all the Objective C keywords.
(objc_rid_sans_at): Kill.
(init_reswords): Don't initialize it.
(yylexname): Use OBJC_IS_AT_KEYWORD and OBJC_IS_PQ_KEYWORD.
(_yylex): Kill reconsider label. Look ahead one token after
an '@'; if we get an identifier, check whether it's an
Objective C @-keyword. If so, return the keyword. Otherwise,
put back the token and return the '@' as a terminal.
* cpplib.c (lex_macro_node): Remove unnecessary check for
leading '@' on identifier. Clarify control flow and commentary.
Sun Jul 1 11:53:52 2001 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
* cse.c (new_label_ref): Variable deleted.
(insert): Remove set of new_label_ref.
(check_for_label_ref): New function.
(cse_basic_block): Don't check new_label_ref; call check_for_label_ref.
See ChangeLog.5 for earlier changes.
From-SVN: r43861
2001-07-09 13:20:51 +02:00
|
|
|
|
default:
|
|
|
|
|
break;
|
2002-01-10 01:56:56 +01:00
|
|
|
|
}
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
1993-08-07 13:42:21 +02:00
|
|
|
|
/* If we are reloading a (SUBREG constant ...), really reload just the
|
1993-10-20 00:20:04 +01:00
|
|
|
|
inside expression in its own mode. Similarly for (SUBREG (PLUS ...)).
|
1993-08-07 13:42:21 +02:00
|
|
|
|
If we have (SUBREG:M1 (MEM:M2 ...) ...) (or an inner REG that is still
|
|
|
|
|
a pseudo and hence will become a MEM) with M1 wider than M2 and the
|
|
|
|
|
register is a pseudo, also reload the inside expression.
|
1993-08-06 01:17:30 +02:00
|
|
|
|
For machines that extend byte loads, do this for any SUBREG of a pseudo
|
1994-08-07 14:53:02 +02:00
|
|
|
|
where both M1 and M2 are a word or smaller, M1 is wider than M2, and
|
|
|
|
|
M2 is an integral mode that gets extended when loaded.
|
1993-05-24 09:51:12 +02:00
|
|
|
|
Similar issue for (SUBREG:M1 (REG:M2 ...) ...) for a hard register R where
|
1992-02-28 11:23:25 +01:00
|
|
|
|
either M1 is not valid for R or M2 is wider than a word but we only
|
|
|
|
|
need one word to store an M2-sized quantity in R.
|
1993-05-24 09:51:12 +02:00
|
|
|
|
(However, if OUT is nonzero, we need to reload the reg *and*
|
|
|
|
|
the subreg, so do nothing here, and let following statement handle it.)
|
|
|
|
|
|
1992-02-28 11:23:25 +01:00
|
|
|
|
Note that the case of (SUBREG (CONST_INT...)...) is handled elsewhere;
|
|
|
|
|
we can't handle it here because CONST_INT does not indicate a mode.
|
|
|
|
|
|
|
|
|
|
Similarly, we must reload the inside expression if we have a
|
1992-07-17 11:52:19 +02:00
|
|
|
|
STRICT_LOW_PART (presumably, in == out in the cas).
|
|
|
|
|
|
|
|
|
|
Also reload the inner expression if it does not require a secondary
|
1994-08-07 14:53:02 +02:00
|
|
|
|
reload but the SUBREG does.
|
|
|
|
|
|
|
|
|
|
Finally, reload the inner expression if it is a register that is in
|
|
|
|
|
the class whose registers cannot be referenced in a different size
|
2001-09-08 00:19:05 +02:00
|
|
|
|
and M1 is not the same size as M2. If subreg_lowpart_p is false, we
|
1995-05-20 13:52:46 +02:00
|
|
|
|
cannot reload just the inside since we might end up with the wrong
|
1999-01-27 02:43:17 +01:00
|
|
|
|
register class. But if it is inside a STRICT_LOW_PART, we have
|
|
|
|
|
no choice, so we hope we do get the right register class there. */
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
1999-01-27 02:43:17 +01:00
|
|
|
|
if (in != 0 && GET_CODE (in) == SUBREG
|
2001-09-08 00:19:05 +02:00
|
|
|
|
&& (subreg_lowpart_p (in) || strict_low)
|
2000-06-13 23:47:44 +02:00
|
|
|
|
#ifdef CLASS_CANNOT_CHANGE_MODE
|
2000-09-08 03:35:53 +02:00
|
|
|
|
&& (class != CLASS_CANNOT_CHANGE_MODE
|
|
|
|
|
|| ! CLASS_CANNOT_CHANGE_MODE_P (GET_MODE (SUBREG_REG (in)), inmode))
|
1995-03-18 22:58:30 +01:00
|
|
|
|
#endif
|
1993-08-07 13:42:21 +02:00
|
|
|
|
&& (CONSTANT_P (SUBREG_REG (in))
|
1993-10-20 00:20:04 +01:00
|
|
|
|
|| GET_CODE (SUBREG_REG (in)) == PLUS
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|| strict_low
|
1993-08-07 13:42:21 +02:00
|
|
|
|
|| (((GET_CODE (SUBREG_REG (in)) == REG
|
|
|
|
|
&& REGNO (SUBREG_REG (in)) >= FIRST_PSEUDO_REGISTER)
|
|
|
|
|
|| GET_CODE (SUBREG_REG (in)) == MEM)
|
1993-12-24 14:33:15 +01:00
|
|
|
|
&& ((GET_MODE_SIZE (inmode)
|
|
|
|
|
> GET_MODE_SIZE (GET_MODE (SUBREG_REG (in))))
|
1993-09-25 14:22:29 +02:00
|
|
|
|
#ifdef LOAD_EXTEND_OP
|
1993-12-24 14:33:15 +01:00
|
|
|
|
|| (GET_MODE_SIZE (inmode) <= UNITS_PER_WORD
|
|
|
|
|
&& (GET_MODE_SIZE (GET_MODE (SUBREG_REG (in)))
|
|
|
|
|
<= UNITS_PER_WORD)
|
|
|
|
|
&& (GET_MODE_SIZE (inmode)
|
1994-08-07 14:53:02 +02:00
|
|
|
|
> GET_MODE_SIZE (GET_MODE (SUBREG_REG (in))))
|
|
|
|
|
&& INTEGRAL_MODE_P (GET_MODE (SUBREG_REG (in)))
|
|
|
|
|
&& LOAD_EXTEND_OP (GET_MODE (SUBREG_REG (in))) != NIL)
|
1998-01-28 20:09:41 +01:00
|
|
|
|
#endif
|
|
|
|
|
#ifdef WORD_REGISTER_OPERATIONS
|
|
|
|
|
|| ((GET_MODE_SIZE (inmode)
|
|
|
|
|
< GET_MODE_SIZE (GET_MODE (SUBREG_REG (in))))
|
|
|
|
|
&& ((GET_MODE_SIZE (inmode) - 1) / UNITS_PER_WORD ==
|
|
|
|
|
((GET_MODE_SIZE (GET_MODE (SUBREG_REG (in))) - 1)
|
|
|
|
|
/ UNITS_PER_WORD)))
|
1993-08-06 01:17:30 +02:00
|
|
|
|
#endif
|
1993-12-24 14:33:15 +01:00
|
|
|
|
))
|
1993-08-07 13:42:21 +02:00
|
|
|
|
|| (GET_CODE (SUBREG_REG (in)) == REG
|
|
|
|
|
&& REGNO (SUBREG_REG (in)) < FIRST_PSEUDO_REGISTER
|
1993-05-24 09:51:12 +02:00
|
|
|
|
/* The case where out is nonzero
|
|
|
|
|
is handled differently in the following statement. */
|
2001-09-08 00:19:05 +02:00
|
|
|
|
&& (out == 0 || subreg_lowpart_p (in))
|
1993-08-06 01:17:30 +02:00
|
|
|
|
&& ((GET_MODE_SIZE (inmode) <= UNITS_PER_WORD
|
|
|
|
|
&& (GET_MODE_SIZE (GET_MODE (SUBREG_REG (in)))
|
|
|
|
|
> UNITS_PER_WORD)
|
|
|
|
|
&& ((GET_MODE_SIZE (GET_MODE (SUBREG_REG (in)))
|
|
|
|
|
/ UNITS_PER_WORD)
|
|
|
|
|
!= HARD_REGNO_NREGS (REGNO (SUBREG_REG (in)),
|
|
|
|
|
GET_MODE (SUBREG_REG (in)))))
|
Use byte offsets in SUBREGs instead of words.
2001-04-03 Jakub Jelinek <jakub@redhat.com>
David S. Miller <davem@pierdol.cobaltmicro.com>
Andrew MacLeod <amacleod@redhat.com>
Use byte offsets in SUBREGs instead of words.
* alias.c (nonlocal_mentioned_p): Use subreg_regno function.
* caller-save.c (mark_set_regs): Change callers of subreg_hard_regno
to pass new argument.
(add_stored_regs): Use subreg_regno_offset function.
* calls.c (expand_call): For non-paradoxical SUBREG take endianess
into account.
(precompute_arguments): Use gen_lowpart_SUBREG.
* combine.c (try_combine): Replace explicit XEXP with SUBREG_REG.
(combine_simplify_rtx): Rework to use SUBREG_BYTE.
(simplify_set): Rework to use SUBREG_BYTE.
(expand_field_assignment): Use SUBREG_BYTE.
(make_extraction): Use SUBREG_BYTE.
(if_then_else_cond): Use SUBREG_BYTE.
(apply_distributive_law): Use SUBREG_BYTE and fixup subreg comments.
(gen_lowpart_for_combine): Compute full byte offset.
* cse.c (mention_regs): Use SUBREG_BYTE.
(remove_invalid_subreg_refs): Rework to use SUBREG_BYTE.
(canon_hash): Use SUBREG_BYTE.
(fold_rtx): Pass SUBREG_BYTE div UNITS_PER_WORD to operand_subword.
(gen_lowpart_if_possible): Formatting.
* dbxout.c (dbxout_symbol_location): Compute SUBREG hard regnos
correctly.
* dwarf2out.c (is_pseudo_reg): Fixup explicit XEXP into SUBREG_REG
(mem_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
(loc_descriptor): Fixup explicit XEXP into SUBREG_REG
* dwarfout.c (is_pseudo_reg): Fixup explicit XEXP into SUBREG_REG
(output_mem_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
(output_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
* emit-rtl.c (gen_rtx_SUBREG): New function, used to verify
certain invariants about SUBREGs the compiler creates.
(gen_lowpart_SUBREG): New function.
(subreg_hard_regno): New function to get the final register number.
(gen_lowpart_common): Use SUBREG_BYTE.
(gen_imagpart): Spacing nits.
(subreg_realpart_p): Use SUBREG_BYTE.
(gen_highpart): Use SUBREG_BYTE.
(subreg_lowpart_p): Always compute endian corrected goal offset,
even at the byte level, then compare against that.
(constant_subword): New function, pulled out all constant cases
from operand_subword and changed second argument name to offset.
(operand_subword): Detect non REG/SUBREG/CONCAT/MEM cases early
and call constant_subword to do the work. Return const0_rtx if
looking for a word outside of OP.
(operand_subword_force): Change second arg name to offset.
* expmed.c (store_bit_field): Use SUBREG_BYTE.
(store_split_bit_field): Use SUBREG_BYTE.
(extract_bit_field): Use SUBREG_BYTE.
(extract_split_bit_field): Use SUBREG_BYTE.
(expand_shift): Use SUBREG_BYTE.
* expr.c (store_expr, expand_expr): Use gen_lowpart_SUBREG.
* final.c (alter_subreg) Use subreg_hard_regno and SUBREG_BYTE.
* flow.c (set_noop_p): Use SUBREG_BYTE.
(mark_set_1): Remove ALTER_HARD_SUBREG. Use subreg_regno_offset instead.
* function.c (fixup_var_refs_1): Fixup explicit XEXP into a SUBREG_REG.
(fixup_memory_subreg): Use SUBREG_BYTE and remove byte endian
correction code.
(optimize_bit_field): Use SUBREG_BYTE.
(purge_addressof_1): Use SUBREG_BYTE.
(purge_single_hard_subreg_set): Use subreg_regno_offset function.
(assign_params): Mark arguments SUBREG_PROMOTED_VAR_P if they are
actually promoted by the caller and PROMOTE_FOR_CALLS_ONLY is true.
* gengenrtl.c (special_rtx): Add SUBREG.
* global.c (mark_reg_store): Use SUBREG_BYTE.
(set_preference): Rework to use subreg_regno_offset and SUBREG_BYTE.
* ifcvt (noce_emit_move_insn): Use SUBREG_BYTE.
* integrate.c (copy_rtx_and_substitute): Use SUBREG_BYTE and make sure
final byte offset is congruent to subreg's mode size.
(subst_constants): Use SUBREG_BYTE.
(mark_stores): Use subreg_regno_offset function.
* jump.c (rtx_renumbered_equal_p, true_regnum): Use subreg_regno_offset
function and SUBREG_BYTE.
* local-alloc.c (combine_regs): Use subreg_regno_offset function.
(reg_is_born): Use subreg_hard_regno.
* recog.c (valid_replace_rtx_1): Use SUBREG_BYTE and remove byte
endian correction code. Don't combine subregs unless resulting
offset aligns with type. Fix subreg constant extraction for DImode.
Simplify SUBREG of VOIDmode CONST_DOUBLE.
(general_operand): Remove dead mode_altering_drug code.
(indirect_operand): Use SUBREG_BYTE.
(constrain_operands): Use subreg_regno_offset function.
* reg-stack.c (get_true_reg): Use subreg_regno_offset function.
* regmove.c (regmove_optimize): Use SUBREG_BYTE.
(optimize_reg_copy_3): Use gen_lowpart_SUBREG.
* regs.h (REG_SIZE): Allow target to override.
(REGMODE_NATURAL_SIZE): New macro which target can override.
* reload.c (reload_inner_reg_of_subreg): subreg_regno should be used
on the entire subreg rtx.
(push_reload): Use SUBREG_BYTE in comments and code.
(find_dummy_reload): Use subreg_regno_offset. Only adjust offsets
for hard registers inside subregs.
(operands_match_p): Use subreg_regno_offset.
(find_reloads): Use SUBREG_BYTE and only advance offset for subregs
containing hard regs.
(find_reload_toplev): Use SUBREG_BYTE. Remove byte endian
corrections when fixing up MEM subregs.
(find_reloads_address_1): Use SUBREG_BYTE, subreg_regno, and
subreg_regno_offset where appropriate.
(find_reloads_subreg_address): Use SUBREG_BYTE. Remove
byte endian corrections when fixing up MEM subregs.
(subst_reloads): When combining two subregs, make sure final
offset is congruent to subreg's mode size.
(find_replacement): Use SUBREG_BYTE and subreg_regno_offset.
(refers_to_regno_for_reload_p): Use subreg_regno.
(reg_overlap_mentioned_for_reload_p): Use subreg_regno_offset.
* reload1.c (eliminate_regs) Use SUBREG_BYTE. Remove byte endian
correction code for memory subreg fixups.
(forget_old_reload_1): Use subreg_regno_offset.
(choose_reload_regs): Use subreg_regno.
(emit_input_reload_insns): Use SUBREG_BYTE.
(reload_combine_note_store): Use subreg_regno_offset.
(move2add_note_store): Use subreg_regno_offset.
* resource.c (update_live_status, mark_referenced_resources): Use
subreg_regno function.
(mark_set_resources): Use subreg_regno function.
* rtl.h (SUBREG_WORD): Rename to SUBREG_BYTE.
(subreg_regno_offset, subreg_regno): Define prototypes.
(subreg_hard_regno, constant_subword, gen_rtx_SUBREG): Newi functions.
(gen_lowpart_SUBREG): Add prototype.
* rtl.texi (subreg): Update to reflect new byte offset representation.
Add mentioning of the effect that BYTES_BIG_ENDIAN has on subregs now.
* rtlanal.c (refers_to_regno_p): Use subreg_regno.
(reg_overlap_mentioned_p): Use subreg_regno.
(replace_regs); Make sure final offset of combined subreg is
congruent to size of subreg's mode.
(subreg_regno_offset): New function.
(subreg_regno): New function.
* sched-vis.c (print_value): Change SUBREG_WORD to SUBREG_BYTE.
* sdbout.c (sdbout_symbol): Compute offset using alter_subreg.
* stmt.c (expand_anon_union_decl): Use gen_lowpart_SUBREG.
* tm.texi (ALTER_HARD_SUBREG): Remove, it is now dead.
(SUBREG_REGNO_OFFSET): Describe SUBREG_REGNO_OFFSET overrides.
* config/a29k/a29k.c (gpc_reg_operand): Use subreg_regno.
(a29k_get_reloaded_address): Use SUBREG_BYTE.
(print_operand): Use SUBREG_BYTE.
* config/alpha/alpha.c (print_operand_address): Use SUBREG_BYTE.
* config/arm/arm.c (arm_reload_in_hi): Use SUBREG_BYTE.
(arm_reload_out_hi): Use SUBREG_BYTE.
* config/d30v/d30v.c (d30v_split_double): Use subreg_regno_offset
instead of SUBREG_WORD.
(d30v_print_operand_memory_reference): Use subreg_regno_offset.
* config/dsp16xx/dsp16xx.md (extendqihi2, zero_extendqihi2): Fix
SUBREG creation to use byte offset.
* config/h8300/h8300.md (Unnamed HImode zero extraction and 16bit
inverted load insns): Fix explicit rtl subregs to use byte
offsets.
* config/i370/i370.md (cmpstrsi, movstrsi, mulsi3, divsi3,
udivsi3, umodsi3): Generate SUBREGs with byte offsets.
* config/i860/i860.c (single_insn_src_p): Use SUBREG_BYTE.
* config/i860/i860.md (mulsi3_big): Fixup explicit SUBREGs in rtl
to use byte offsets.
(unnamed fmlow.dd insn): Fixup SUBREGS to use byte offsets.
* config/i960/i960.md (extendhisi2): Generate SUBREGs with byte
offsets, also make sure it is congruent to SUBREG's mode size.
(extendqisi2, extendqihi2, zero_extendhisi2, zero_extendqisi2,
unnamed ldob insn): Generate SUBREGs with byte offset.
(zero_extendqihi2): SUBREG's are byte offsets.
* config/m68hc11/m68hc11.c (m68hc11_gen_lowpart): Use SUBREG_BYTE.
(m68hc11_gen_highpart): Use SUBREG_BYTE.
* config/m68k/m68k.md (zero_extendhisi2, zero_extendqihi2,
zero-extendqisi2): Generate SUBREGs with byte offset.
(umulsidi3, mulsidi3, subreghi1ashrdi_const32,
subregsi1ashrdi_const32, subreg1lshrdi_const32): Fixup explicit
subregs in rtl to use byte offsets.
* config/m88k/m88k.md (extendsidi2): fixup subregs to use byte offset.
* config/mips/mips.c (mips_move_1word): Use subreg_regno_offset.
(mips_move_2words): Use subreg_regno_offset.
(mips_secondary_reload_class): Use subreg_regno_offset.
* config/mips/mips.md (DImode plus, minus, move, and logical op
splits): Fixup explicit subregs in rtl to use byte offsets.
* config/mn10200/mn10200.c (print_operand): Use subreg_regno function.
* config/mn10300/mn10300.c (print_operand): Use subreg_regno function.
* config/ns32k/ns32k.md (udivmoddisi4): Fix explicit subregs in
rtl to use byte offsets.
* config/pa/pa.c (emit_move_sequence): Use SUBREG_BYTE.
* config/pa/pa.md (floatunssisf2, floatunssidf2, mulsi3): fix explicit
subregs to use byte offsets.
* config/pdp11/pdp11.md (zero_extendhisi2, modhi3, modhi3+1):
Fixup explicit subregs in rtl to use byte offsets.
* config/romp/romp.c (memory_offset_in_range_p): Use SUBREG_BYTE
and remove byte endian correction code.
* config/sh/sh.c (output_movedouble): Use subreg_regno.
(gen_ashift_hi): Use SUBREG_BYTE.
(regs_used): Use subreg_regno_offset.
(machine_dependent_reorg): Use subreg_regno_offset.
* config/sh/sh.h (INDEX_REGISTER_RTX_P): Use SUBREG_BYTE.
* config/sh/sh.md (DImode and DFmode move splits): Use subreg_regno.
(movdf_i4): Subregs are byte offsets now.
* config/sparc/sparc.c (ultra_find_type): Use SUBREG_BYTE.
* config/sparc/sparc.h (ALTER_HARD_SUBREG): Removed.
(REGMODE_NATURAL_SIZE): Override.
(REG_SIZE): For SUBREG check float mode on SUBREG_REG's mode.
* config/sparc/sparc.md (TFmode move splits): Generate SUBREGs
with byte offsets.
(zero_extendhisi2, zero_extendqidi2_insn, extendhisi2,
extendqihi2, sign_extendqihi2_insn, sign_extendqisi2_insn,
extendqidi2): Generate SUBREGs with byte offsets, also make sure
it is congruent to SUBREG's mode size.
(smulsi3_highpart_v8plus): Fix explicit subregs in rtl to use byte
offsets.
(cmp_siqi_trunc, cmp_siqi_trunc_set, cmp_diqi_trunc,
cmp_diqi_trunc_set, lshrdi3_v8plus+1, lshrdi3_v8plus+2,
lshrdi3_v8plus+3, lshrdi3_v8plus+4): Use proper
SUBREG_BYTE offset for non-paradoxical subregs in patterns.
* config/v850/v850.c (print_operand, output_move_double): Use
subreg_regno function.
Co-Authored-By: Andrew MacLeod <amacleod@redhat.com>
Co-Authored-By: David S. Miller <davem@pierdol.cobaltmicro.com>
From-SVN: r41058
2001-04-03 17:06:12 +02:00
|
|
|
|
|| ! HARD_REGNO_MODE_OK (subreg_regno (in), inmode)))
|
1992-07-17 11:52:19 +02:00
|
|
|
|
#ifdef SECONDARY_INPUT_RELOAD_CLASS
|
|
|
|
|
|| (SECONDARY_INPUT_RELOAD_CLASS (class, inmode, in) != NO_REGS
|
|
|
|
|
&& (SECONDARY_INPUT_RELOAD_CLASS (class,
|
|
|
|
|
GET_MODE (SUBREG_REG (in)),
|
|
|
|
|
SUBREG_REG (in))
|
|
|
|
|
== NO_REGS))
|
1994-08-07 14:53:02 +02:00
|
|
|
|
#endif
|
2000-06-13 23:47:44 +02:00
|
|
|
|
#ifdef CLASS_CANNOT_CHANGE_MODE
|
1994-08-07 14:53:02 +02:00
|
|
|
|
|| (GET_CODE (SUBREG_REG (in)) == REG
|
|
|
|
|
&& REGNO (SUBREG_REG (in)) < FIRST_PSEUDO_REGISTER
|
|
|
|
|
&& (TEST_HARD_REG_BIT
|
2000-06-13 23:47:44 +02:00
|
|
|
|
(reg_class_contents[(int) CLASS_CANNOT_CHANGE_MODE],
|
1994-08-07 14:53:02 +02:00
|
|
|
|
REGNO (SUBREG_REG (in))))
|
2000-06-13 23:47:44 +02:00
|
|
|
|
&& CLASS_CANNOT_CHANGE_MODE_P (GET_MODE (SUBREG_REG (in)),
|
|
|
|
|
inmode))
|
1992-07-17 11:52:19 +02:00
|
|
|
|
#endif
|
|
|
|
|
))
|
1992-02-28 11:23:25 +01:00
|
|
|
|
{
|
|
|
|
|
in_subreg_loc = inloc;
|
|
|
|
|
inloc = &SUBREG_REG (in);
|
|
|
|
|
in = *inloc;
|
1998-01-28 20:09:41 +01:00
|
|
|
|
#if ! defined (LOAD_EXTEND_OP) && ! defined (WORD_REGISTER_OPERATIONS)
|
1992-02-28 11:23:25 +01:00
|
|
|
|
if (GET_CODE (in) == MEM)
|
|
|
|
|
/* This is supposed to happen only for paradoxical subregs made by
|
|
|
|
|
combine.c. (SUBREG (MEM)) isn't supposed to occur other ways. */
|
|
|
|
|
if (GET_MODE_SIZE (GET_MODE (in)) > GET_MODE_SIZE (inmode))
|
|
|
|
|
abort ();
|
1993-05-02 16:01:55 +02:00
|
|
|
|
#endif
|
1992-02-28 11:23:25 +01:00
|
|
|
|
inmode = GET_MODE (in);
|
|
|
|
|
}
|
|
|
|
|
|
1993-05-24 09:51:12 +02:00
|
|
|
|
/* Similar issue for (SUBREG:M1 (REG:M2 ...) ...) for a hard register R where
|
|
|
|
|
either M1 is not valid for R or M2 is wider than a word but we only
|
|
|
|
|
need one word to store an M2-sized quantity in R.
|
|
|
|
|
|
|
|
|
|
However, we must reload the inner reg *as well as* the subreg in
|
|
|
|
|
that case. */
|
|
|
|
|
|
1996-04-17 03:04:32 +02:00
|
|
|
|
/* Similar issue for (SUBREG constant ...) if it was not handled by the
|
Use byte offsets in SUBREGs instead of words.
2001-04-03 Jakub Jelinek <jakub@redhat.com>
David S. Miller <davem@pierdol.cobaltmicro.com>
Andrew MacLeod <amacleod@redhat.com>
Use byte offsets in SUBREGs instead of words.
* alias.c (nonlocal_mentioned_p): Use subreg_regno function.
* caller-save.c (mark_set_regs): Change callers of subreg_hard_regno
to pass new argument.
(add_stored_regs): Use subreg_regno_offset function.
* calls.c (expand_call): For non-paradoxical SUBREG take endianess
into account.
(precompute_arguments): Use gen_lowpart_SUBREG.
* combine.c (try_combine): Replace explicit XEXP with SUBREG_REG.
(combine_simplify_rtx): Rework to use SUBREG_BYTE.
(simplify_set): Rework to use SUBREG_BYTE.
(expand_field_assignment): Use SUBREG_BYTE.
(make_extraction): Use SUBREG_BYTE.
(if_then_else_cond): Use SUBREG_BYTE.
(apply_distributive_law): Use SUBREG_BYTE and fixup subreg comments.
(gen_lowpart_for_combine): Compute full byte offset.
* cse.c (mention_regs): Use SUBREG_BYTE.
(remove_invalid_subreg_refs): Rework to use SUBREG_BYTE.
(canon_hash): Use SUBREG_BYTE.
(fold_rtx): Pass SUBREG_BYTE div UNITS_PER_WORD to operand_subword.
(gen_lowpart_if_possible): Formatting.
* dbxout.c (dbxout_symbol_location): Compute SUBREG hard regnos
correctly.
* dwarf2out.c (is_pseudo_reg): Fixup explicit XEXP into SUBREG_REG
(mem_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
(loc_descriptor): Fixup explicit XEXP into SUBREG_REG
* dwarfout.c (is_pseudo_reg): Fixup explicit XEXP into SUBREG_REG
(output_mem_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
(output_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
* emit-rtl.c (gen_rtx_SUBREG): New function, used to verify
certain invariants about SUBREGs the compiler creates.
(gen_lowpart_SUBREG): New function.
(subreg_hard_regno): New function to get the final register number.
(gen_lowpart_common): Use SUBREG_BYTE.
(gen_imagpart): Spacing nits.
(subreg_realpart_p): Use SUBREG_BYTE.
(gen_highpart): Use SUBREG_BYTE.
(subreg_lowpart_p): Always compute endian corrected goal offset,
even at the byte level, then compare against that.
(constant_subword): New function, pulled out all constant cases
from operand_subword and changed second argument name to offset.
(operand_subword): Detect non REG/SUBREG/CONCAT/MEM cases early
and call constant_subword to do the work. Return const0_rtx if
looking for a word outside of OP.
(operand_subword_force): Change second arg name to offset.
* expmed.c (store_bit_field): Use SUBREG_BYTE.
(store_split_bit_field): Use SUBREG_BYTE.
(extract_bit_field): Use SUBREG_BYTE.
(extract_split_bit_field): Use SUBREG_BYTE.
(expand_shift): Use SUBREG_BYTE.
* expr.c (store_expr, expand_expr): Use gen_lowpart_SUBREG.
* final.c (alter_subreg) Use subreg_hard_regno and SUBREG_BYTE.
* flow.c (set_noop_p): Use SUBREG_BYTE.
(mark_set_1): Remove ALTER_HARD_SUBREG. Use subreg_regno_offset instead.
* function.c (fixup_var_refs_1): Fixup explicit XEXP into a SUBREG_REG.
(fixup_memory_subreg): Use SUBREG_BYTE and remove byte endian
correction code.
(optimize_bit_field): Use SUBREG_BYTE.
(purge_addressof_1): Use SUBREG_BYTE.
(purge_single_hard_subreg_set): Use subreg_regno_offset function.
(assign_params): Mark arguments SUBREG_PROMOTED_VAR_P if they are
actually promoted by the caller and PROMOTE_FOR_CALLS_ONLY is true.
* gengenrtl.c (special_rtx): Add SUBREG.
* global.c (mark_reg_store): Use SUBREG_BYTE.
(set_preference): Rework to use subreg_regno_offset and SUBREG_BYTE.
* ifcvt (noce_emit_move_insn): Use SUBREG_BYTE.
* integrate.c (copy_rtx_and_substitute): Use SUBREG_BYTE and make sure
final byte offset is congruent to subreg's mode size.
(subst_constants): Use SUBREG_BYTE.
(mark_stores): Use subreg_regno_offset function.
* jump.c (rtx_renumbered_equal_p, true_regnum): Use subreg_regno_offset
function and SUBREG_BYTE.
* local-alloc.c (combine_regs): Use subreg_regno_offset function.
(reg_is_born): Use subreg_hard_regno.
* recog.c (valid_replace_rtx_1): Use SUBREG_BYTE and remove byte
endian correction code. Don't combine subregs unless resulting
offset aligns with type. Fix subreg constant extraction for DImode.
Simplify SUBREG of VOIDmode CONST_DOUBLE.
(general_operand): Remove dead mode_altering_drug code.
(indirect_operand): Use SUBREG_BYTE.
(constrain_operands): Use subreg_regno_offset function.
* reg-stack.c (get_true_reg): Use subreg_regno_offset function.
* regmove.c (regmove_optimize): Use SUBREG_BYTE.
(optimize_reg_copy_3): Use gen_lowpart_SUBREG.
* regs.h (REG_SIZE): Allow target to override.
(REGMODE_NATURAL_SIZE): New macro which target can override.
* reload.c (reload_inner_reg_of_subreg): subreg_regno should be used
on the entire subreg rtx.
(push_reload): Use SUBREG_BYTE in comments and code.
(find_dummy_reload): Use subreg_regno_offset. Only adjust offsets
for hard registers inside subregs.
(operands_match_p): Use subreg_regno_offset.
(find_reloads): Use SUBREG_BYTE and only advance offset for subregs
containing hard regs.
(find_reload_toplev): Use SUBREG_BYTE. Remove byte endian
corrections when fixing up MEM subregs.
(find_reloads_address_1): Use SUBREG_BYTE, subreg_regno, and
subreg_regno_offset where appropriate.
(find_reloads_subreg_address): Use SUBREG_BYTE. Remove
byte endian corrections when fixing up MEM subregs.
(subst_reloads): When combining two subregs, make sure final
offset is congruent to subreg's mode size.
(find_replacement): Use SUBREG_BYTE and subreg_regno_offset.
(refers_to_regno_for_reload_p): Use subreg_regno.
(reg_overlap_mentioned_for_reload_p): Use subreg_regno_offset.
* reload1.c (eliminate_regs) Use SUBREG_BYTE. Remove byte endian
correction code for memory subreg fixups.
(forget_old_reload_1): Use subreg_regno_offset.
(choose_reload_regs): Use subreg_regno.
(emit_input_reload_insns): Use SUBREG_BYTE.
(reload_combine_note_store): Use subreg_regno_offset.
(move2add_note_store): Use subreg_regno_offset.
* resource.c (update_live_status, mark_referenced_resources): Use
subreg_regno function.
(mark_set_resources): Use subreg_regno function.
* rtl.h (SUBREG_WORD): Rename to SUBREG_BYTE.
(subreg_regno_offset, subreg_regno): Define prototypes.
(subreg_hard_regno, constant_subword, gen_rtx_SUBREG): Newi functions.
(gen_lowpart_SUBREG): Add prototype.
* rtl.texi (subreg): Update to reflect new byte offset representation.
Add mentioning of the effect that BYTES_BIG_ENDIAN has on subregs now.
* rtlanal.c (refers_to_regno_p): Use subreg_regno.
(reg_overlap_mentioned_p): Use subreg_regno.
(replace_regs); Make sure final offset of combined subreg is
congruent to size of subreg's mode.
(subreg_regno_offset): New function.
(subreg_regno): New function.
* sched-vis.c (print_value): Change SUBREG_WORD to SUBREG_BYTE.
* sdbout.c (sdbout_symbol): Compute offset using alter_subreg.
* stmt.c (expand_anon_union_decl): Use gen_lowpart_SUBREG.
* tm.texi (ALTER_HARD_SUBREG): Remove, it is now dead.
(SUBREG_REGNO_OFFSET): Describe SUBREG_REGNO_OFFSET overrides.
* config/a29k/a29k.c (gpc_reg_operand): Use subreg_regno.
(a29k_get_reloaded_address): Use SUBREG_BYTE.
(print_operand): Use SUBREG_BYTE.
* config/alpha/alpha.c (print_operand_address): Use SUBREG_BYTE.
* config/arm/arm.c (arm_reload_in_hi): Use SUBREG_BYTE.
(arm_reload_out_hi): Use SUBREG_BYTE.
* config/d30v/d30v.c (d30v_split_double): Use subreg_regno_offset
instead of SUBREG_WORD.
(d30v_print_operand_memory_reference): Use subreg_regno_offset.
* config/dsp16xx/dsp16xx.md (extendqihi2, zero_extendqihi2): Fix
SUBREG creation to use byte offset.
* config/h8300/h8300.md (Unnamed HImode zero extraction and 16bit
inverted load insns): Fix explicit rtl subregs to use byte
offsets.
* config/i370/i370.md (cmpstrsi, movstrsi, mulsi3, divsi3,
udivsi3, umodsi3): Generate SUBREGs with byte offsets.
* config/i860/i860.c (single_insn_src_p): Use SUBREG_BYTE.
* config/i860/i860.md (mulsi3_big): Fixup explicit SUBREGs in rtl
to use byte offsets.
(unnamed fmlow.dd insn): Fixup SUBREGS to use byte offsets.
* config/i960/i960.md (extendhisi2): Generate SUBREGs with byte
offsets, also make sure it is congruent to SUBREG's mode size.
(extendqisi2, extendqihi2, zero_extendhisi2, zero_extendqisi2,
unnamed ldob insn): Generate SUBREGs with byte offset.
(zero_extendqihi2): SUBREG's are byte offsets.
* config/m68hc11/m68hc11.c (m68hc11_gen_lowpart): Use SUBREG_BYTE.
(m68hc11_gen_highpart): Use SUBREG_BYTE.
* config/m68k/m68k.md (zero_extendhisi2, zero_extendqihi2,
zero-extendqisi2): Generate SUBREGs with byte offset.
(umulsidi3, mulsidi3, subreghi1ashrdi_const32,
subregsi1ashrdi_const32, subreg1lshrdi_const32): Fixup explicit
subregs in rtl to use byte offsets.
* config/m88k/m88k.md (extendsidi2): fixup subregs to use byte offset.
* config/mips/mips.c (mips_move_1word): Use subreg_regno_offset.
(mips_move_2words): Use subreg_regno_offset.
(mips_secondary_reload_class): Use subreg_regno_offset.
* config/mips/mips.md (DImode plus, minus, move, and logical op
splits): Fixup explicit subregs in rtl to use byte offsets.
* config/mn10200/mn10200.c (print_operand): Use subreg_regno function.
* config/mn10300/mn10300.c (print_operand): Use subreg_regno function.
* config/ns32k/ns32k.md (udivmoddisi4): Fix explicit subregs in
rtl to use byte offsets.
* config/pa/pa.c (emit_move_sequence): Use SUBREG_BYTE.
* config/pa/pa.md (floatunssisf2, floatunssidf2, mulsi3): fix explicit
subregs to use byte offsets.
* config/pdp11/pdp11.md (zero_extendhisi2, modhi3, modhi3+1):
Fixup explicit subregs in rtl to use byte offsets.
* config/romp/romp.c (memory_offset_in_range_p): Use SUBREG_BYTE
and remove byte endian correction code.
* config/sh/sh.c (output_movedouble): Use subreg_regno.
(gen_ashift_hi): Use SUBREG_BYTE.
(regs_used): Use subreg_regno_offset.
(machine_dependent_reorg): Use subreg_regno_offset.
* config/sh/sh.h (INDEX_REGISTER_RTX_P): Use SUBREG_BYTE.
* config/sh/sh.md (DImode and DFmode move splits): Use subreg_regno.
(movdf_i4): Subregs are byte offsets now.
* config/sparc/sparc.c (ultra_find_type): Use SUBREG_BYTE.
* config/sparc/sparc.h (ALTER_HARD_SUBREG): Removed.
(REGMODE_NATURAL_SIZE): Override.
(REG_SIZE): For SUBREG check float mode on SUBREG_REG's mode.
* config/sparc/sparc.md (TFmode move splits): Generate SUBREGs
with byte offsets.
(zero_extendhisi2, zero_extendqidi2_insn, extendhisi2,
extendqihi2, sign_extendqihi2_insn, sign_extendqisi2_insn,
extendqidi2): Generate SUBREGs with byte offsets, also make sure
it is congruent to SUBREG's mode size.
(smulsi3_highpart_v8plus): Fix explicit subregs in rtl to use byte
offsets.
(cmp_siqi_trunc, cmp_siqi_trunc_set, cmp_diqi_trunc,
cmp_diqi_trunc_set, lshrdi3_v8plus+1, lshrdi3_v8plus+2,
lshrdi3_v8plus+3, lshrdi3_v8plus+4): Use proper
SUBREG_BYTE offset for non-paradoxical subregs in patterns.
* config/v850/v850.c (print_operand, output_move_double): Use
subreg_regno function.
Co-Authored-By: Andrew MacLeod <amacleod@redhat.com>
Co-Authored-By: David S. Miller <davem@pierdol.cobaltmicro.com>
From-SVN: r41058
2001-04-03 17:06:12 +02:00
|
|
|
|
code above. This can happen if SUBREG_BYTE != 0. */
|
1996-04-17 03:04:32 +02:00
|
|
|
|
|
2000-08-21 15:46:47 +02:00
|
|
|
|
if (in != 0 && reload_inner_reg_of_subreg (in, inmode))
|
1993-05-24 09:51:12 +02:00
|
|
|
|
{
|
2001-06-04 03:58:24 +02:00
|
|
|
|
enum reg_class in_class = class;
|
|
|
|
|
|
|
|
|
|
if (GET_CODE (SUBREG_REG (in)) == REG)
|
|
|
|
|
in_class
|
|
|
|
|
= find_valid_class (inmode,
|
|
|
|
|
subreg_regno_offset (REGNO (SUBREG_REG (in)),
|
|
|
|
|
GET_MODE (SUBREG_REG (in)),
|
|
|
|
|
SUBREG_BYTE (in),
|
2002-05-26 14:01:40 +02:00
|
|
|
|
GET_MODE (in)),
|
|
|
|
|
REGNO (SUBREG_REG (in)));
|
2001-06-04 03:58:24 +02:00
|
|
|
|
|
1995-11-05 17:22:54 +01:00
|
|
|
|
/* This relies on the fact that emit_reload_insns outputs the
|
|
|
|
|
instructions for input reloads of type RELOAD_OTHER in the same
|
|
|
|
|
order as the reloads. Thus if the outer reload is also of type
|
|
|
|
|
RELOAD_OTHER, we are guaranteed that this inner reload will be
|
|
|
|
|
output before the outer reload. */
|
2002-01-10 01:56:56 +01:00
|
|
|
|
push_reload (SUBREG_REG (in), NULL_RTX, &SUBREG_REG (in), (rtx *) 0,
|
2001-06-04 03:58:24 +02:00
|
|
|
|
in_class, VOIDmode, VOIDmode, 0, 0, opnum, type);
|
1995-08-31 14:30:38 +02:00
|
|
|
|
dont_remove_subreg = 1;
|
1993-05-24 09:51:12 +02:00
|
|
|
|
}
|
|
|
|
|
|
1992-02-28 11:23:25 +01:00
|
|
|
|
/* Similarly for paradoxical and problematical SUBREGs on the output.
|
|
|
|
|
Note that there is no reason we need worry about the previous value
|
|
|
|
|
of SUBREG_REG (out); even if wider than out,
|
|
|
|
|
storing in a subreg is entitled to clobber it all
|
|
|
|
|
(except in the case of STRICT_LOW_PART,
|
|
|
|
|
and in that case the constraint should label it input-output.) */
|
1999-01-27 02:43:17 +01:00
|
|
|
|
if (out != 0 && GET_CODE (out) == SUBREG
|
2001-09-08 00:19:05 +02:00
|
|
|
|
&& (subreg_lowpart_p (out) || strict_low)
|
2000-06-13 23:47:44 +02:00
|
|
|
|
#ifdef CLASS_CANNOT_CHANGE_MODE
|
2000-09-08 03:35:53 +02:00
|
|
|
|
&& (class != CLASS_CANNOT_CHANGE_MODE
|
|
|
|
|
|| ! CLASS_CANNOT_CHANGE_MODE_P (GET_MODE (SUBREG_REG (out)),
|
|
|
|
|
outmode))
|
1995-03-18 22:58:30 +01:00
|
|
|
|
#endif
|
1993-08-07 13:42:21 +02:00
|
|
|
|
&& (CONSTANT_P (SUBREG_REG (out))
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|| strict_low
|
1993-08-07 13:42:21 +02:00
|
|
|
|
|| (((GET_CODE (SUBREG_REG (out)) == REG
|
|
|
|
|
&& REGNO (SUBREG_REG (out)) >= FIRST_PSEUDO_REGISTER)
|
|
|
|
|
|| GET_CODE (SUBREG_REG (out)) == MEM)
|
1993-12-24 14:33:15 +01:00
|
|
|
|
&& ((GET_MODE_SIZE (outmode)
|
reload.h, [...]: Revert March 15 change.
* reload.h, reload1.c (eliminate_regs), caller-save.c, dbxout.c,
dwarfout.c, dwarf2out.c, reload.c, sdbout.c: Revert March 15 change.
* reload.c (push_reload): If WORD_REGISTER_OPERATIONS, reload the
SUBREG_REG if the word count is unchanged.
* reload1.c (eliminate_regs) [case SET]: If W_R_O, preserve
subregs of identical word size for push_reload.
From-SVN: r17105
1997-12-15 18:55:58 +01:00
|
|
|
|
> GET_MODE_SIZE (GET_MODE (SUBREG_REG (out))))
|
|
|
|
|
#ifdef WORD_REGISTER_OPERATIONS
|
1998-01-22 15:48:58 +01:00
|
|
|
|
|| ((GET_MODE_SIZE (outmode)
|
|
|
|
|
< GET_MODE_SIZE (GET_MODE (SUBREG_REG (out))))
|
|
|
|
|
&& ((GET_MODE_SIZE (outmode) - 1) / UNITS_PER_WORD ==
|
|
|
|
|
((GET_MODE_SIZE (GET_MODE (SUBREG_REG (out))) - 1)
|
|
|
|
|
/ UNITS_PER_WORD)))
|
reload.h, [...]: Revert March 15 change.
* reload.h, reload1.c (eliminate_regs), caller-save.c, dbxout.c,
dwarfout.c, dwarf2out.c, reload.c, sdbout.c: Revert March 15 change.
* reload.c (push_reload): If WORD_REGISTER_OPERATIONS, reload the
SUBREG_REG if the word count is unchanged.
* reload1.c (eliminate_regs) [case SET]: If W_R_O, preserve
subregs of identical word size for push_reload.
From-SVN: r17105
1997-12-15 18:55:58 +01:00
|
|
|
|
#endif
|
1999-09-01 16:30:35 +02:00
|
|
|
|
))
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|| (GET_CODE (SUBREG_REG (out)) == REG
|
|
|
|
|
&& REGNO (SUBREG_REG (out)) < FIRST_PSEUDO_REGISTER
|
1993-08-06 01:17:30 +02:00
|
|
|
|
&& ((GET_MODE_SIZE (outmode) <= UNITS_PER_WORD
|
|
|
|
|
&& (GET_MODE_SIZE (GET_MODE (SUBREG_REG (out)))
|
|
|
|
|
> UNITS_PER_WORD)
|
|
|
|
|
&& ((GET_MODE_SIZE (GET_MODE (SUBREG_REG (out)))
|
|
|
|
|
/ UNITS_PER_WORD)
|
|
|
|
|
!= HARD_REGNO_NREGS (REGNO (SUBREG_REG (out)),
|
|
|
|
|
GET_MODE (SUBREG_REG (out)))))
|
Use byte offsets in SUBREGs instead of words.
2001-04-03 Jakub Jelinek <jakub@redhat.com>
David S. Miller <davem@pierdol.cobaltmicro.com>
Andrew MacLeod <amacleod@redhat.com>
Use byte offsets in SUBREGs instead of words.
* alias.c (nonlocal_mentioned_p): Use subreg_regno function.
* caller-save.c (mark_set_regs): Change callers of subreg_hard_regno
to pass new argument.
(add_stored_regs): Use subreg_regno_offset function.
* calls.c (expand_call): For non-paradoxical SUBREG take endianess
into account.
(precompute_arguments): Use gen_lowpart_SUBREG.
* combine.c (try_combine): Replace explicit XEXP with SUBREG_REG.
(combine_simplify_rtx): Rework to use SUBREG_BYTE.
(simplify_set): Rework to use SUBREG_BYTE.
(expand_field_assignment): Use SUBREG_BYTE.
(make_extraction): Use SUBREG_BYTE.
(if_then_else_cond): Use SUBREG_BYTE.
(apply_distributive_law): Use SUBREG_BYTE and fixup subreg comments.
(gen_lowpart_for_combine): Compute full byte offset.
* cse.c (mention_regs): Use SUBREG_BYTE.
(remove_invalid_subreg_refs): Rework to use SUBREG_BYTE.
(canon_hash): Use SUBREG_BYTE.
(fold_rtx): Pass SUBREG_BYTE div UNITS_PER_WORD to operand_subword.
(gen_lowpart_if_possible): Formatting.
* dbxout.c (dbxout_symbol_location): Compute SUBREG hard regnos
correctly.
* dwarf2out.c (is_pseudo_reg): Fixup explicit XEXP into SUBREG_REG
(mem_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
(loc_descriptor): Fixup explicit XEXP into SUBREG_REG
* dwarfout.c (is_pseudo_reg): Fixup explicit XEXP into SUBREG_REG
(output_mem_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
(output_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
* emit-rtl.c (gen_rtx_SUBREG): New function, used to verify
certain invariants about SUBREGs the compiler creates.
(gen_lowpart_SUBREG): New function.
(subreg_hard_regno): New function to get the final register number.
(gen_lowpart_common): Use SUBREG_BYTE.
(gen_imagpart): Spacing nits.
(subreg_realpart_p): Use SUBREG_BYTE.
(gen_highpart): Use SUBREG_BYTE.
(subreg_lowpart_p): Always compute endian corrected goal offset,
even at the byte level, then compare against that.
(constant_subword): New function, pulled out all constant cases
from operand_subword and changed second argument name to offset.
(operand_subword): Detect non REG/SUBREG/CONCAT/MEM cases early
and call constant_subword to do the work. Return const0_rtx if
looking for a word outside of OP.
(operand_subword_force): Change second arg name to offset.
* expmed.c (store_bit_field): Use SUBREG_BYTE.
(store_split_bit_field): Use SUBREG_BYTE.
(extract_bit_field): Use SUBREG_BYTE.
(extract_split_bit_field): Use SUBREG_BYTE.
(expand_shift): Use SUBREG_BYTE.
* expr.c (store_expr, expand_expr): Use gen_lowpart_SUBREG.
* final.c (alter_subreg) Use subreg_hard_regno and SUBREG_BYTE.
* flow.c (set_noop_p): Use SUBREG_BYTE.
(mark_set_1): Remove ALTER_HARD_SUBREG. Use subreg_regno_offset instead.
* function.c (fixup_var_refs_1): Fixup explicit XEXP into a SUBREG_REG.
(fixup_memory_subreg): Use SUBREG_BYTE and remove byte endian
correction code.
(optimize_bit_field): Use SUBREG_BYTE.
(purge_addressof_1): Use SUBREG_BYTE.
(purge_single_hard_subreg_set): Use subreg_regno_offset function.
(assign_params): Mark arguments SUBREG_PROMOTED_VAR_P if they are
actually promoted by the caller and PROMOTE_FOR_CALLS_ONLY is true.
* gengenrtl.c (special_rtx): Add SUBREG.
* global.c (mark_reg_store): Use SUBREG_BYTE.
(set_preference): Rework to use subreg_regno_offset and SUBREG_BYTE.
* ifcvt (noce_emit_move_insn): Use SUBREG_BYTE.
* integrate.c (copy_rtx_and_substitute): Use SUBREG_BYTE and make sure
final byte offset is congruent to subreg's mode size.
(subst_constants): Use SUBREG_BYTE.
(mark_stores): Use subreg_regno_offset function.
* jump.c (rtx_renumbered_equal_p, true_regnum): Use subreg_regno_offset
function and SUBREG_BYTE.
* local-alloc.c (combine_regs): Use subreg_regno_offset function.
(reg_is_born): Use subreg_hard_regno.
* recog.c (valid_replace_rtx_1): Use SUBREG_BYTE and remove byte
endian correction code. Don't combine subregs unless resulting
offset aligns with type. Fix subreg constant extraction for DImode.
Simplify SUBREG of VOIDmode CONST_DOUBLE.
(general_operand): Remove dead mode_altering_drug code.
(indirect_operand): Use SUBREG_BYTE.
(constrain_operands): Use subreg_regno_offset function.
* reg-stack.c (get_true_reg): Use subreg_regno_offset function.
* regmove.c (regmove_optimize): Use SUBREG_BYTE.
(optimize_reg_copy_3): Use gen_lowpart_SUBREG.
* regs.h (REG_SIZE): Allow target to override.
(REGMODE_NATURAL_SIZE): New macro which target can override.
* reload.c (reload_inner_reg_of_subreg): subreg_regno should be used
on the entire subreg rtx.
(push_reload): Use SUBREG_BYTE in comments and code.
(find_dummy_reload): Use subreg_regno_offset. Only adjust offsets
for hard registers inside subregs.
(operands_match_p): Use subreg_regno_offset.
(find_reloads): Use SUBREG_BYTE and only advance offset for subregs
containing hard regs.
(find_reload_toplev): Use SUBREG_BYTE. Remove byte endian
corrections when fixing up MEM subregs.
(find_reloads_address_1): Use SUBREG_BYTE, subreg_regno, and
subreg_regno_offset where appropriate.
(find_reloads_subreg_address): Use SUBREG_BYTE. Remove
byte endian corrections when fixing up MEM subregs.
(subst_reloads): When combining two subregs, make sure final
offset is congruent to subreg's mode size.
(find_replacement): Use SUBREG_BYTE and subreg_regno_offset.
(refers_to_regno_for_reload_p): Use subreg_regno.
(reg_overlap_mentioned_for_reload_p): Use subreg_regno_offset.
* reload1.c (eliminate_regs) Use SUBREG_BYTE. Remove byte endian
correction code for memory subreg fixups.
(forget_old_reload_1): Use subreg_regno_offset.
(choose_reload_regs): Use subreg_regno.
(emit_input_reload_insns): Use SUBREG_BYTE.
(reload_combine_note_store): Use subreg_regno_offset.
(move2add_note_store): Use subreg_regno_offset.
* resource.c (update_live_status, mark_referenced_resources): Use
subreg_regno function.
(mark_set_resources): Use subreg_regno function.
* rtl.h (SUBREG_WORD): Rename to SUBREG_BYTE.
(subreg_regno_offset, subreg_regno): Define prototypes.
(subreg_hard_regno, constant_subword, gen_rtx_SUBREG): Newi functions.
(gen_lowpart_SUBREG): Add prototype.
* rtl.texi (subreg): Update to reflect new byte offset representation.
Add mentioning of the effect that BYTES_BIG_ENDIAN has on subregs now.
* rtlanal.c (refers_to_regno_p): Use subreg_regno.
(reg_overlap_mentioned_p): Use subreg_regno.
(replace_regs); Make sure final offset of combined subreg is
congruent to size of subreg's mode.
(subreg_regno_offset): New function.
(subreg_regno): New function.
* sched-vis.c (print_value): Change SUBREG_WORD to SUBREG_BYTE.
* sdbout.c (sdbout_symbol): Compute offset using alter_subreg.
* stmt.c (expand_anon_union_decl): Use gen_lowpart_SUBREG.
* tm.texi (ALTER_HARD_SUBREG): Remove, it is now dead.
(SUBREG_REGNO_OFFSET): Describe SUBREG_REGNO_OFFSET overrides.
* config/a29k/a29k.c (gpc_reg_operand): Use subreg_regno.
(a29k_get_reloaded_address): Use SUBREG_BYTE.
(print_operand): Use SUBREG_BYTE.
* config/alpha/alpha.c (print_operand_address): Use SUBREG_BYTE.
* config/arm/arm.c (arm_reload_in_hi): Use SUBREG_BYTE.
(arm_reload_out_hi): Use SUBREG_BYTE.
* config/d30v/d30v.c (d30v_split_double): Use subreg_regno_offset
instead of SUBREG_WORD.
(d30v_print_operand_memory_reference): Use subreg_regno_offset.
* config/dsp16xx/dsp16xx.md (extendqihi2, zero_extendqihi2): Fix
SUBREG creation to use byte offset.
* config/h8300/h8300.md (Unnamed HImode zero extraction and 16bit
inverted load insns): Fix explicit rtl subregs to use byte
offsets.
* config/i370/i370.md (cmpstrsi, movstrsi, mulsi3, divsi3,
udivsi3, umodsi3): Generate SUBREGs with byte offsets.
* config/i860/i860.c (single_insn_src_p): Use SUBREG_BYTE.
* config/i860/i860.md (mulsi3_big): Fixup explicit SUBREGs in rtl
to use byte offsets.
(unnamed fmlow.dd insn): Fixup SUBREGS to use byte offsets.
* config/i960/i960.md (extendhisi2): Generate SUBREGs with byte
offsets, also make sure it is congruent to SUBREG's mode size.
(extendqisi2, extendqihi2, zero_extendhisi2, zero_extendqisi2,
unnamed ldob insn): Generate SUBREGs with byte offset.
(zero_extendqihi2): SUBREG's are byte offsets.
* config/m68hc11/m68hc11.c (m68hc11_gen_lowpart): Use SUBREG_BYTE.
(m68hc11_gen_highpart): Use SUBREG_BYTE.
* config/m68k/m68k.md (zero_extendhisi2, zero_extendqihi2,
zero-extendqisi2): Generate SUBREGs with byte offset.
(umulsidi3, mulsidi3, subreghi1ashrdi_const32,
subregsi1ashrdi_const32, subreg1lshrdi_const32): Fixup explicit
subregs in rtl to use byte offsets.
* config/m88k/m88k.md (extendsidi2): fixup subregs to use byte offset.
* config/mips/mips.c (mips_move_1word): Use subreg_regno_offset.
(mips_move_2words): Use subreg_regno_offset.
(mips_secondary_reload_class): Use subreg_regno_offset.
* config/mips/mips.md (DImode plus, minus, move, and logical op
splits): Fixup explicit subregs in rtl to use byte offsets.
* config/mn10200/mn10200.c (print_operand): Use subreg_regno function.
* config/mn10300/mn10300.c (print_operand): Use subreg_regno function.
* config/ns32k/ns32k.md (udivmoddisi4): Fix explicit subregs in
rtl to use byte offsets.
* config/pa/pa.c (emit_move_sequence): Use SUBREG_BYTE.
* config/pa/pa.md (floatunssisf2, floatunssidf2, mulsi3): fix explicit
subregs to use byte offsets.
* config/pdp11/pdp11.md (zero_extendhisi2, modhi3, modhi3+1):
Fixup explicit subregs in rtl to use byte offsets.
* config/romp/romp.c (memory_offset_in_range_p): Use SUBREG_BYTE
and remove byte endian correction code.
* config/sh/sh.c (output_movedouble): Use subreg_regno.
(gen_ashift_hi): Use SUBREG_BYTE.
(regs_used): Use subreg_regno_offset.
(machine_dependent_reorg): Use subreg_regno_offset.
* config/sh/sh.h (INDEX_REGISTER_RTX_P): Use SUBREG_BYTE.
* config/sh/sh.md (DImode and DFmode move splits): Use subreg_regno.
(movdf_i4): Subregs are byte offsets now.
* config/sparc/sparc.c (ultra_find_type): Use SUBREG_BYTE.
* config/sparc/sparc.h (ALTER_HARD_SUBREG): Removed.
(REGMODE_NATURAL_SIZE): Override.
(REG_SIZE): For SUBREG check float mode on SUBREG_REG's mode.
* config/sparc/sparc.md (TFmode move splits): Generate SUBREGs
with byte offsets.
(zero_extendhisi2, zero_extendqidi2_insn, extendhisi2,
extendqihi2, sign_extendqihi2_insn, sign_extendqisi2_insn,
extendqidi2): Generate SUBREGs with byte offsets, also make sure
it is congruent to SUBREG's mode size.
(smulsi3_highpart_v8plus): Fix explicit subregs in rtl to use byte
offsets.
(cmp_siqi_trunc, cmp_siqi_trunc_set, cmp_diqi_trunc,
cmp_diqi_trunc_set, lshrdi3_v8plus+1, lshrdi3_v8plus+2,
lshrdi3_v8plus+3, lshrdi3_v8plus+4): Use proper
SUBREG_BYTE offset for non-paradoxical subregs in patterns.
* config/v850/v850.c (print_operand, output_move_double): Use
subreg_regno function.
Co-Authored-By: Andrew MacLeod <amacleod@redhat.com>
Co-Authored-By: David S. Miller <davem@pierdol.cobaltmicro.com>
From-SVN: r41058
2001-04-03 17:06:12 +02:00
|
|
|
|
|| ! HARD_REGNO_MODE_OK (subreg_regno (out), outmode)))
|
1992-07-17 11:52:19 +02:00
|
|
|
|
#ifdef SECONDARY_OUTPUT_RELOAD_CLASS
|
|
|
|
|
|| (SECONDARY_OUTPUT_RELOAD_CLASS (class, outmode, out) != NO_REGS
|
|
|
|
|
&& (SECONDARY_OUTPUT_RELOAD_CLASS (class,
|
|
|
|
|
GET_MODE (SUBREG_REG (out)),
|
|
|
|
|
SUBREG_REG (out))
|
|
|
|
|
== NO_REGS))
|
1994-08-07 14:53:02 +02:00
|
|
|
|
#endif
|
2000-06-13 23:47:44 +02:00
|
|
|
|
#ifdef CLASS_CANNOT_CHANGE_MODE
|
1994-08-07 14:53:02 +02:00
|
|
|
|
|| (GET_CODE (SUBREG_REG (out)) == REG
|
|
|
|
|
&& REGNO (SUBREG_REG (out)) < FIRST_PSEUDO_REGISTER
|
|
|
|
|
&& (TEST_HARD_REG_BIT
|
2000-06-13 23:47:44 +02:00
|
|
|
|
(reg_class_contents[(int) CLASS_CANNOT_CHANGE_MODE],
|
1994-08-07 14:53:02 +02:00
|
|
|
|
REGNO (SUBREG_REG (out))))
|
2000-06-13 23:47:44 +02:00
|
|
|
|
&& CLASS_CANNOT_CHANGE_MODE_P (GET_MODE (SUBREG_REG (out)),
|
|
|
|
|
outmode))
|
1992-07-17 11:52:19 +02:00
|
|
|
|
#endif
|
|
|
|
|
))
|
1992-02-28 11:23:25 +01:00
|
|
|
|
{
|
|
|
|
|
out_subreg_loc = outloc;
|
|
|
|
|
outloc = &SUBREG_REG (out);
|
1999-09-01 16:30:35 +02:00
|
|
|
|
out = *outloc;
|
1998-01-28 20:09:41 +01:00
|
|
|
|
#if ! defined (LOAD_EXTEND_OP) && ! defined (WORD_REGISTER_OPERATIONS)
|
1999-09-01 16:30:35 +02:00
|
|
|
|
if (GET_CODE (out) == MEM
|
1992-02-28 11:23:25 +01:00
|
|
|
|
&& GET_MODE_SIZE (GET_MODE (out)) > GET_MODE_SIZE (outmode))
|
|
|
|
|
abort ();
|
1993-05-02 16:01:55 +02:00
|
|
|
|
#endif
|
1992-02-28 11:23:25 +01:00
|
|
|
|
outmode = GET_MODE (out);
|
|
|
|
|
}
|
|
|
|
|
|
1995-08-31 14:30:38 +02:00
|
|
|
|
/* Similar issue for (SUBREG:M1 (REG:M2 ...) ...) for a hard register R where
|
|
|
|
|
either M1 is not valid for R or M2 is wider than a word but we only
|
|
|
|
|
need one word to store an M2-sized quantity in R.
|
|
|
|
|
|
|
|
|
|
However, we must reload the inner reg *as well as* the subreg in
|
|
|
|
|
that case. In this case, the inner reg is an in-out reload. */
|
|
|
|
|
|
2000-08-21 15:46:47 +02:00
|
|
|
|
if (out != 0 && reload_inner_reg_of_subreg (out, outmode))
|
1995-08-31 14:30:38 +02:00
|
|
|
|
{
|
1995-11-05 17:22:54 +01:00
|
|
|
|
/* This relies on the fact that emit_reload_insns outputs the
|
|
|
|
|
instructions for output reloads of type RELOAD_OTHER in reverse
|
|
|
|
|
order of the reloads. Thus if the outer reload is also of type
|
|
|
|
|
RELOAD_OTHER, we are guaranteed that this inner reload will be
|
|
|
|
|
output after the outer reload. */
|
1995-08-31 14:30:38 +02:00
|
|
|
|
dont_remove_subreg = 1;
|
|
|
|
|
push_reload (SUBREG_REG (out), SUBREG_REG (out), &SUBREG_REG (out),
|
1995-12-22 23:36:25 +01:00
|
|
|
|
&SUBREG_REG (out),
|
Use byte offsets in SUBREGs instead of words.
2001-04-03 Jakub Jelinek <jakub@redhat.com>
David S. Miller <davem@pierdol.cobaltmicro.com>
Andrew MacLeod <amacleod@redhat.com>
Use byte offsets in SUBREGs instead of words.
* alias.c (nonlocal_mentioned_p): Use subreg_regno function.
* caller-save.c (mark_set_regs): Change callers of subreg_hard_regno
to pass new argument.
(add_stored_regs): Use subreg_regno_offset function.
* calls.c (expand_call): For non-paradoxical SUBREG take endianess
into account.
(precompute_arguments): Use gen_lowpart_SUBREG.
* combine.c (try_combine): Replace explicit XEXP with SUBREG_REG.
(combine_simplify_rtx): Rework to use SUBREG_BYTE.
(simplify_set): Rework to use SUBREG_BYTE.
(expand_field_assignment): Use SUBREG_BYTE.
(make_extraction): Use SUBREG_BYTE.
(if_then_else_cond): Use SUBREG_BYTE.
(apply_distributive_law): Use SUBREG_BYTE and fixup subreg comments.
(gen_lowpart_for_combine): Compute full byte offset.
* cse.c (mention_regs): Use SUBREG_BYTE.
(remove_invalid_subreg_refs): Rework to use SUBREG_BYTE.
(canon_hash): Use SUBREG_BYTE.
(fold_rtx): Pass SUBREG_BYTE div UNITS_PER_WORD to operand_subword.
(gen_lowpart_if_possible): Formatting.
* dbxout.c (dbxout_symbol_location): Compute SUBREG hard regnos
correctly.
* dwarf2out.c (is_pseudo_reg): Fixup explicit XEXP into SUBREG_REG
(mem_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
(loc_descriptor): Fixup explicit XEXP into SUBREG_REG
* dwarfout.c (is_pseudo_reg): Fixup explicit XEXP into SUBREG_REG
(output_mem_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
(output_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
* emit-rtl.c (gen_rtx_SUBREG): New function, used to verify
certain invariants about SUBREGs the compiler creates.
(gen_lowpart_SUBREG): New function.
(subreg_hard_regno): New function to get the final register number.
(gen_lowpart_common): Use SUBREG_BYTE.
(gen_imagpart): Spacing nits.
(subreg_realpart_p): Use SUBREG_BYTE.
(gen_highpart): Use SUBREG_BYTE.
(subreg_lowpart_p): Always compute endian corrected goal offset,
even at the byte level, then compare against that.
(constant_subword): New function, pulled out all constant cases
from operand_subword and changed second argument name to offset.
(operand_subword): Detect non REG/SUBREG/CONCAT/MEM cases early
and call constant_subword to do the work. Return const0_rtx if
looking for a word outside of OP.
(operand_subword_force): Change second arg name to offset.
* expmed.c (store_bit_field): Use SUBREG_BYTE.
(store_split_bit_field): Use SUBREG_BYTE.
(extract_bit_field): Use SUBREG_BYTE.
(extract_split_bit_field): Use SUBREG_BYTE.
(expand_shift): Use SUBREG_BYTE.
* expr.c (store_expr, expand_expr): Use gen_lowpart_SUBREG.
* final.c (alter_subreg) Use subreg_hard_regno and SUBREG_BYTE.
* flow.c (set_noop_p): Use SUBREG_BYTE.
(mark_set_1): Remove ALTER_HARD_SUBREG. Use subreg_regno_offset instead.
* function.c (fixup_var_refs_1): Fixup explicit XEXP into a SUBREG_REG.
(fixup_memory_subreg): Use SUBREG_BYTE and remove byte endian
correction code.
(optimize_bit_field): Use SUBREG_BYTE.
(purge_addressof_1): Use SUBREG_BYTE.
(purge_single_hard_subreg_set): Use subreg_regno_offset function.
(assign_params): Mark arguments SUBREG_PROMOTED_VAR_P if they are
actually promoted by the caller and PROMOTE_FOR_CALLS_ONLY is true.
* gengenrtl.c (special_rtx): Add SUBREG.
* global.c (mark_reg_store): Use SUBREG_BYTE.
(set_preference): Rework to use subreg_regno_offset and SUBREG_BYTE.
* ifcvt (noce_emit_move_insn): Use SUBREG_BYTE.
* integrate.c (copy_rtx_and_substitute): Use SUBREG_BYTE and make sure
final byte offset is congruent to subreg's mode size.
(subst_constants): Use SUBREG_BYTE.
(mark_stores): Use subreg_regno_offset function.
* jump.c (rtx_renumbered_equal_p, true_regnum): Use subreg_regno_offset
function and SUBREG_BYTE.
* local-alloc.c (combine_regs): Use subreg_regno_offset function.
(reg_is_born): Use subreg_hard_regno.
* recog.c (valid_replace_rtx_1): Use SUBREG_BYTE and remove byte
endian correction code. Don't combine subregs unless resulting
offset aligns with type. Fix subreg constant extraction for DImode.
Simplify SUBREG of VOIDmode CONST_DOUBLE.
(general_operand): Remove dead mode_altering_drug code.
(indirect_operand): Use SUBREG_BYTE.
(constrain_operands): Use subreg_regno_offset function.
* reg-stack.c (get_true_reg): Use subreg_regno_offset function.
* regmove.c (regmove_optimize): Use SUBREG_BYTE.
(optimize_reg_copy_3): Use gen_lowpart_SUBREG.
* regs.h (REG_SIZE): Allow target to override.
(REGMODE_NATURAL_SIZE): New macro which target can override.
* reload.c (reload_inner_reg_of_subreg): subreg_regno should be used
on the entire subreg rtx.
(push_reload): Use SUBREG_BYTE in comments and code.
(find_dummy_reload): Use subreg_regno_offset. Only adjust offsets
for hard registers inside subregs.
(operands_match_p): Use subreg_regno_offset.
(find_reloads): Use SUBREG_BYTE and only advance offset for subregs
containing hard regs.
(find_reload_toplev): Use SUBREG_BYTE. Remove byte endian
corrections when fixing up MEM subregs.
(find_reloads_address_1): Use SUBREG_BYTE, subreg_regno, and
subreg_regno_offset where appropriate.
(find_reloads_subreg_address): Use SUBREG_BYTE. Remove
byte endian corrections when fixing up MEM subregs.
(subst_reloads): When combining two subregs, make sure final
offset is congruent to subreg's mode size.
(find_replacement): Use SUBREG_BYTE and subreg_regno_offset.
(refers_to_regno_for_reload_p): Use subreg_regno.
(reg_overlap_mentioned_for_reload_p): Use subreg_regno_offset.
* reload1.c (eliminate_regs) Use SUBREG_BYTE. Remove byte endian
correction code for memory subreg fixups.
(forget_old_reload_1): Use subreg_regno_offset.
(choose_reload_regs): Use subreg_regno.
(emit_input_reload_insns): Use SUBREG_BYTE.
(reload_combine_note_store): Use subreg_regno_offset.
(move2add_note_store): Use subreg_regno_offset.
* resource.c (update_live_status, mark_referenced_resources): Use
subreg_regno function.
(mark_set_resources): Use subreg_regno function.
* rtl.h (SUBREG_WORD): Rename to SUBREG_BYTE.
(subreg_regno_offset, subreg_regno): Define prototypes.
(subreg_hard_regno, constant_subword, gen_rtx_SUBREG): Newi functions.
(gen_lowpart_SUBREG): Add prototype.
* rtl.texi (subreg): Update to reflect new byte offset representation.
Add mentioning of the effect that BYTES_BIG_ENDIAN has on subregs now.
* rtlanal.c (refers_to_regno_p): Use subreg_regno.
(reg_overlap_mentioned_p): Use subreg_regno.
(replace_regs); Make sure final offset of combined subreg is
congruent to size of subreg's mode.
(subreg_regno_offset): New function.
(subreg_regno): New function.
* sched-vis.c (print_value): Change SUBREG_WORD to SUBREG_BYTE.
* sdbout.c (sdbout_symbol): Compute offset using alter_subreg.
* stmt.c (expand_anon_union_decl): Use gen_lowpart_SUBREG.
* tm.texi (ALTER_HARD_SUBREG): Remove, it is now dead.
(SUBREG_REGNO_OFFSET): Describe SUBREG_REGNO_OFFSET overrides.
* config/a29k/a29k.c (gpc_reg_operand): Use subreg_regno.
(a29k_get_reloaded_address): Use SUBREG_BYTE.
(print_operand): Use SUBREG_BYTE.
* config/alpha/alpha.c (print_operand_address): Use SUBREG_BYTE.
* config/arm/arm.c (arm_reload_in_hi): Use SUBREG_BYTE.
(arm_reload_out_hi): Use SUBREG_BYTE.
* config/d30v/d30v.c (d30v_split_double): Use subreg_regno_offset
instead of SUBREG_WORD.
(d30v_print_operand_memory_reference): Use subreg_regno_offset.
* config/dsp16xx/dsp16xx.md (extendqihi2, zero_extendqihi2): Fix
SUBREG creation to use byte offset.
* config/h8300/h8300.md (Unnamed HImode zero extraction and 16bit
inverted load insns): Fix explicit rtl subregs to use byte
offsets.
* config/i370/i370.md (cmpstrsi, movstrsi, mulsi3, divsi3,
udivsi3, umodsi3): Generate SUBREGs with byte offsets.
* config/i860/i860.c (single_insn_src_p): Use SUBREG_BYTE.
* config/i860/i860.md (mulsi3_big): Fixup explicit SUBREGs in rtl
to use byte offsets.
(unnamed fmlow.dd insn): Fixup SUBREGS to use byte offsets.
* config/i960/i960.md (extendhisi2): Generate SUBREGs with byte
offsets, also make sure it is congruent to SUBREG's mode size.
(extendqisi2, extendqihi2, zero_extendhisi2, zero_extendqisi2,
unnamed ldob insn): Generate SUBREGs with byte offset.
(zero_extendqihi2): SUBREG's are byte offsets.
* config/m68hc11/m68hc11.c (m68hc11_gen_lowpart): Use SUBREG_BYTE.
(m68hc11_gen_highpart): Use SUBREG_BYTE.
* config/m68k/m68k.md (zero_extendhisi2, zero_extendqihi2,
zero-extendqisi2): Generate SUBREGs with byte offset.
(umulsidi3, mulsidi3, subreghi1ashrdi_const32,
subregsi1ashrdi_const32, subreg1lshrdi_const32): Fixup explicit
subregs in rtl to use byte offsets.
* config/m88k/m88k.md (extendsidi2): fixup subregs to use byte offset.
* config/mips/mips.c (mips_move_1word): Use subreg_regno_offset.
(mips_move_2words): Use subreg_regno_offset.
(mips_secondary_reload_class): Use subreg_regno_offset.
* config/mips/mips.md (DImode plus, minus, move, and logical op
splits): Fixup explicit subregs in rtl to use byte offsets.
* config/mn10200/mn10200.c (print_operand): Use subreg_regno function.
* config/mn10300/mn10300.c (print_operand): Use subreg_regno function.
* config/ns32k/ns32k.md (udivmoddisi4): Fix explicit subregs in
rtl to use byte offsets.
* config/pa/pa.c (emit_move_sequence): Use SUBREG_BYTE.
* config/pa/pa.md (floatunssisf2, floatunssidf2, mulsi3): fix explicit
subregs to use byte offsets.
* config/pdp11/pdp11.md (zero_extendhisi2, modhi3, modhi3+1):
Fixup explicit subregs in rtl to use byte offsets.
* config/romp/romp.c (memory_offset_in_range_p): Use SUBREG_BYTE
and remove byte endian correction code.
* config/sh/sh.c (output_movedouble): Use subreg_regno.
(gen_ashift_hi): Use SUBREG_BYTE.
(regs_used): Use subreg_regno_offset.
(machine_dependent_reorg): Use subreg_regno_offset.
* config/sh/sh.h (INDEX_REGISTER_RTX_P): Use SUBREG_BYTE.
* config/sh/sh.md (DImode and DFmode move splits): Use subreg_regno.
(movdf_i4): Subregs are byte offsets now.
* config/sparc/sparc.c (ultra_find_type): Use SUBREG_BYTE.
* config/sparc/sparc.h (ALTER_HARD_SUBREG): Removed.
(REGMODE_NATURAL_SIZE): Override.
(REG_SIZE): For SUBREG check float mode on SUBREG_REG's mode.
* config/sparc/sparc.md (TFmode move splits): Generate SUBREGs
with byte offsets.
(zero_extendhisi2, zero_extendqidi2_insn, extendhisi2,
extendqihi2, sign_extendqihi2_insn, sign_extendqisi2_insn,
extendqidi2): Generate SUBREGs with byte offsets, also make sure
it is congruent to SUBREG's mode size.
(smulsi3_highpart_v8plus): Fix explicit subregs in rtl to use byte
offsets.
(cmp_siqi_trunc, cmp_siqi_trunc_set, cmp_diqi_trunc,
cmp_diqi_trunc_set, lshrdi3_v8plus+1, lshrdi3_v8plus+2,
lshrdi3_v8plus+3, lshrdi3_v8plus+4): Use proper
SUBREG_BYTE offset for non-paradoxical subregs in patterns.
* config/v850/v850.c (print_operand, output_move_double): Use
subreg_regno function.
Co-Authored-By: Andrew MacLeod <amacleod@redhat.com>
Co-Authored-By: David S. Miller <davem@pierdol.cobaltmicro.com>
From-SVN: r41058
2001-04-03 17:06:12 +02:00
|
|
|
|
find_valid_class (outmode,
|
|
|
|
|
subreg_regno_offset (REGNO (SUBREG_REG (out)),
|
|
|
|
|
GET_MODE (SUBREG_REG (out)),
|
|
|
|
|
SUBREG_BYTE (out),
|
2002-05-26 14:01:40 +02:00
|
|
|
|
GET_MODE (out)),
|
|
|
|
|
REGNO (SUBREG_REG (out))),
|
1995-12-22 23:36:25 +01:00
|
|
|
|
VOIDmode, VOIDmode, 0, 0,
|
1995-08-31 14:30:38 +02:00
|
|
|
|
opnum, RELOAD_OTHER);
|
|
|
|
|
}
|
|
|
|
|
|
1992-02-28 11:23:25 +01:00
|
|
|
|
/* If IN appears in OUT, we can't share any input-only reload for IN. */
|
|
|
|
|
if (in != 0 && out != 0 && GET_CODE (out) == MEM
|
|
|
|
|
&& (GET_CODE (in) == REG || GET_CODE (in) == MEM)
|
1992-05-12 04:51:59 +02:00
|
|
|
|
&& reg_overlap_mentioned_for_reload_p (in, XEXP (out, 0)))
|
1992-02-28 11:23:25 +01:00
|
|
|
|
dont_share = 1;
|
|
|
|
|
|
1992-07-17 11:57:24 +02:00
|
|
|
|
/* If IN is a SUBREG of a hard register, make a new REG. This
|
|
|
|
|
simplifies some of the cases below. */
|
|
|
|
|
|
|
|
|
|
if (in != 0 && GET_CODE (in) == SUBREG && GET_CODE (SUBREG_REG (in)) == REG
|
1995-08-31 14:30:38 +02:00
|
|
|
|
&& REGNO (SUBREG_REG (in)) < FIRST_PSEUDO_REGISTER
|
|
|
|
|
&& ! dont_remove_subreg)
|
Use byte offsets in SUBREGs instead of words.
2001-04-03 Jakub Jelinek <jakub@redhat.com>
David S. Miller <davem@pierdol.cobaltmicro.com>
Andrew MacLeod <amacleod@redhat.com>
Use byte offsets in SUBREGs instead of words.
* alias.c (nonlocal_mentioned_p): Use subreg_regno function.
* caller-save.c (mark_set_regs): Change callers of subreg_hard_regno
to pass new argument.
(add_stored_regs): Use subreg_regno_offset function.
* calls.c (expand_call): For non-paradoxical SUBREG take endianess
into account.
(precompute_arguments): Use gen_lowpart_SUBREG.
* combine.c (try_combine): Replace explicit XEXP with SUBREG_REG.
(combine_simplify_rtx): Rework to use SUBREG_BYTE.
(simplify_set): Rework to use SUBREG_BYTE.
(expand_field_assignment): Use SUBREG_BYTE.
(make_extraction): Use SUBREG_BYTE.
(if_then_else_cond): Use SUBREG_BYTE.
(apply_distributive_law): Use SUBREG_BYTE and fixup subreg comments.
(gen_lowpart_for_combine): Compute full byte offset.
* cse.c (mention_regs): Use SUBREG_BYTE.
(remove_invalid_subreg_refs): Rework to use SUBREG_BYTE.
(canon_hash): Use SUBREG_BYTE.
(fold_rtx): Pass SUBREG_BYTE div UNITS_PER_WORD to operand_subword.
(gen_lowpart_if_possible): Formatting.
* dbxout.c (dbxout_symbol_location): Compute SUBREG hard regnos
correctly.
* dwarf2out.c (is_pseudo_reg): Fixup explicit XEXP into SUBREG_REG
(mem_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
(loc_descriptor): Fixup explicit XEXP into SUBREG_REG
* dwarfout.c (is_pseudo_reg): Fixup explicit XEXP into SUBREG_REG
(output_mem_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
(output_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
* emit-rtl.c (gen_rtx_SUBREG): New function, used to verify
certain invariants about SUBREGs the compiler creates.
(gen_lowpart_SUBREG): New function.
(subreg_hard_regno): New function to get the final register number.
(gen_lowpart_common): Use SUBREG_BYTE.
(gen_imagpart): Spacing nits.
(subreg_realpart_p): Use SUBREG_BYTE.
(gen_highpart): Use SUBREG_BYTE.
(subreg_lowpart_p): Always compute endian corrected goal offset,
even at the byte level, then compare against that.
(constant_subword): New function, pulled out all constant cases
from operand_subword and changed second argument name to offset.
(operand_subword): Detect non REG/SUBREG/CONCAT/MEM cases early
and call constant_subword to do the work. Return const0_rtx if
looking for a word outside of OP.
(operand_subword_force): Change second arg name to offset.
* expmed.c (store_bit_field): Use SUBREG_BYTE.
(store_split_bit_field): Use SUBREG_BYTE.
(extract_bit_field): Use SUBREG_BYTE.
(extract_split_bit_field): Use SUBREG_BYTE.
(expand_shift): Use SUBREG_BYTE.
* expr.c (store_expr, expand_expr): Use gen_lowpart_SUBREG.
* final.c (alter_subreg) Use subreg_hard_regno and SUBREG_BYTE.
* flow.c (set_noop_p): Use SUBREG_BYTE.
(mark_set_1): Remove ALTER_HARD_SUBREG. Use subreg_regno_offset instead.
* function.c (fixup_var_refs_1): Fixup explicit XEXP into a SUBREG_REG.
(fixup_memory_subreg): Use SUBREG_BYTE and remove byte endian
correction code.
(optimize_bit_field): Use SUBREG_BYTE.
(purge_addressof_1): Use SUBREG_BYTE.
(purge_single_hard_subreg_set): Use subreg_regno_offset function.
(assign_params): Mark arguments SUBREG_PROMOTED_VAR_P if they are
actually promoted by the caller and PROMOTE_FOR_CALLS_ONLY is true.
* gengenrtl.c (special_rtx): Add SUBREG.
* global.c (mark_reg_store): Use SUBREG_BYTE.
(set_preference): Rework to use subreg_regno_offset and SUBREG_BYTE.
* ifcvt (noce_emit_move_insn): Use SUBREG_BYTE.
* integrate.c (copy_rtx_and_substitute): Use SUBREG_BYTE and make sure
final byte offset is congruent to subreg's mode size.
(subst_constants): Use SUBREG_BYTE.
(mark_stores): Use subreg_regno_offset function.
* jump.c (rtx_renumbered_equal_p, true_regnum): Use subreg_regno_offset
function and SUBREG_BYTE.
* local-alloc.c (combine_regs): Use subreg_regno_offset function.
(reg_is_born): Use subreg_hard_regno.
* recog.c (valid_replace_rtx_1): Use SUBREG_BYTE and remove byte
endian correction code. Don't combine subregs unless resulting
offset aligns with type. Fix subreg constant extraction for DImode.
Simplify SUBREG of VOIDmode CONST_DOUBLE.
(general_operand): Remove dead mode_altering_drug code.
(indirect_operand): Use SUBREG_BYTE.
(constrain_operands): Use subreg_regno_offset function.
* reg-stack.c (get_true_reg): Use subreg_regno_offset function.
* regmove.c (regmove_optimize): Use SUBREG_BYTE.
(optimize_reg_copy_3): Use gen_lowpart_SUBREG.
* regs.h (REG_SIZE): Allow target to override.
(REGMODE_NATURAL_SIZE): New macro which target can override.
* reload.c (reload_inner_reg_of_subreg): subreg_regno should be used
on the entire subreg rtx.
(push_reload): Use SUBREG_BYTE in comments and code.
(find_dummy_reload): Use subreg_regno_offset. Only adjust offsets
for hard registers inside subregs.
(operands_match_p): Use subreg_regno_offset.
(find_reloads): Use SUBREG_BYTE and only advance offset for subregs
containing hard regs.
(find_reload_toplev): Use SUBREG_BYTE. Remove byte endian
corrections when fixing up MEM subregs.
(find_reloads_address_1): Use SUBREG_BYTE, subreg_regno, and
subreg_regno_offset where appropriate.
(find_reloads_subreg_address): Use SUBREG_BYTE. Remove
byte endian corrections when fixing up MEM subregs.
(subst_reloads): When combining two subregs, make sure final
offset is congruent to subreg's mode size.
(find_replacement): Use SUBREG_BYTE and subreg_regno_offset.
(refers_to_regno_for_reload_p): Use subreg_regno.
(reg_overlap_mentioned_for_reload_p): Use subreg_regno_offset.
* reload1.c (eliminate_regs) Use SUBREG_BYTE. Remove byte endian
correction code for memory subreg fixups.
(forget_old_reload_1): Use subreg_regno_offset.
(choose_reload_regs): Use subreg_regno.
(emit_input_reload_insns): Use SUBREG_BYTE.
(reload_combine_note_store): Use subreg_regno_offset.
(move2add_note_store): Use subreg_regno_offset.
* resource.c (update_live_status, mark_referenced_resources): Use
subreg_regno function.
(mark_set_resources): Use subreg_regno function.
* rtl.h (SUBREG_WORD): Rename to SUBREG_BYTE.
(subreg_regno_offset, subreg_regno): Define prototypes.
(subreg_hard_regno, constant_subword, gen_rtx_SUBREG): Newi functions.
(gen_lowpart_SUBREG): Add prototype.
* rtl.texi (subreg): Update to reflect new byte offset representation.
Add mentioning of the effect that BYTES_BIG_ENDIAN has on subregs now.
* rtlanal.c (refers_to_regno_p): Use subreg_regno.
(reg_overlap_mentioned_p): Use subreg_regno.
(replace_regs); Make sure final offset of combined subreg is
congruent to size of subreg's mode.
(subreg_regno_offset): New function.
(subreg_regno): New function.
* sched-vis.c (print_value): Change SUBREG_WORD to SUBREG_BYTE.
* sdbout.c (sdbout_symbol): Compute offset using alter_subreg.
* stmt.c (expand_anon_union_decl): Use gen_lowpart_SUBREG.
* tm.texi (ALTER_HARD_SUBREG): Remove, it is now dead.
(SUBREG_REGNO_OFFSET): Describe SUBREG_REGNO_OFFSET overrides.
* config/a29k/a29k.c (gpc_reg_operand): Use subreg_regno.
(a29k_get_reloaded_address): Use SUBREG_BYTE.
(print_operand): Use SUBREG_BYTE.
* config/alpha/alpha.c (print_operand_address): Use SUBREG_BYTE.
* config/arm/arm.c (arm_reload_in_hi): Use SUBREG_BYTE.
(arm_reload_out_hi): Use SUBREG_BYTE.
* config/d30v/d30v.c (d30v_split_double): Use subreg_regno_offset
instead of SUBREG_WORD.
(d30v_print_operand_memory_reference): Use subreg_regno_offset.
* config/dsp16xx/dsp16xx.md (extendqihi2, zero_extendqihi2): Fix
SUBREG creation to use byte offset.
* config/h8300/h8300.md (Unnamed HImode zero extraction and 16bit
inverted load insns): Fix explicit rtl subregs to use byte
offsets.
* config/i370/i370.md (cmpstrsi, movstrsi, mulsi3, divsi3,
udivsi3, umodsi3): Generate SUBREGs with byte offsets.
* config/i860/i860.c (single_insn_src_p): Use SUBREG_BYTE.
* config/i860/i860.md (mulsi3_big): Fixup explicit SUBREGs in rtl
to use byte offsets.
(unnamed fmlow.dd insn): Fixup SUBREGS to use byte offsets.
* config/i960/i960.md (extendhisi2): Generate SUBREGs with byte
offsets, also make sure it is congruent to SUBREG's mode size.
(extendqisi2, extendqihi2, zero_extendhisi2, zero_extendqisi2,
unnamed ldob insn): Generate SUBREGs with byte offset.
(zero_extendqihi2): SUBREG's are byte offsets.
* config/m68hc11/m68hc11.c (m68hc11_gen_lowpart): Use SUBREG_BYTE.
(m68hc11_gen_highpart): Use SUBREG_BYTE.
* config/m68k/m68k.md (zero_extendhisi2, zero_extendqihi2,
zero-extendqisi2): Generate SUBREGs with byte offset.
(umulsidi3, mulsidi3, subreghi1ashrdi_const32,
subregsi1ashrdi_const32, subreg1lshrdi_const32): Fixup explicit
subregs in rtl to use byte offsets.
* config/m88k/m88k.md (extendsidi2): fixup subregs to use byte offset.
* config/mips/mips.c (mips_move_1word): Use subreg_regno_offset.
(mips_move_2words): Use subreg_regno_offset.
(mips_secondary_reload_class): Use subreg_regno_offset.
* config/mips/mips.md (DImode plus, minus, move, and logical op
splits): Fixup explicit subregs in rtl to use byte offsets.
* config/mn10200/mn10200.c (print_operand): Use subreg_regno function.
* config/mn10300/mn10300.c (print_operand): Use subreg_regno function.
* config/ns32k/ns32k.md (udivmoddisi4): Fix explicit subregs in
rtl to use byte offsets.
* config/pa/pa.c (emit_move_sequence): Use SUBREG_BYTE.
* config/pa/pa.md (floatunssisf2, floatunssidf2, mulsi3): fix explicit
subregs to use byte offsets.
* config/pdp11/pdp11.md (zero_extendhisi2, modhi3, modhi3+1):
Fixup explicit subregs in rtl to use byte offsets.
* config/romp/romp.c (memory_offset_in_range_p): Use SUBREG_BYTE
and remove byte endian correction code.
* config/sh/sh.c (output_movedouble): Use subreg_regno.
(gen_ashift_hi): Use SUBREG_BYTE.
(regs_used): Use subreg_regno_offset.
(machine_dependent_reorg): Use subreg_regno_offset.
* config/sh/sh.h (INDEX_REGISTER_RTX_P): Use SUBREG_BYTE.
* config/sh/sh.md (DImode and DFmode move splits): Use subreg_regno.
(movdf_i4): Subregs are byte offsets now.
* config/sparc/sparc.c (ultra_find_type): Use SUBREG_BYTE.
* config/sparc/sparc.h (ALTER_HARD_SUBREG): Removed.
(REGMODE_NATURAL_SIZE): Override.
(REG_SIZE): For SUBREG check float mode on SUBREG_REG's mode.
* config/sparc/sparc.md (TFmode move splits): Generate SUBREGs
with byte offsets.
(zero_extendhisi2, zero_extendqidi2_insn, extendhisi2,
extendqihi2, sign_extendqihi2_insn, sign_extendqisi2_insn,
extendqidi2): Generate SUBREGs with byte offsets, also make sure
it is congruent to SUBREG's mode size.
(smulsi3_highpart_v8plus): Fix explicit subregs in rtl to use byte
offsets.
(cmp_siqi_trunc, cmp_siqi_trunc_set, cmp_diqi_trunc,
cmp_diqi_trunc_set, lshrdi3_v8plus+1, lshrdi3_v8plus+2,
lshrdi3_v8plus+3, lshrdi3_v8plus+4): Use proper
SUBREG_BYTE offset for non-paradoxical subregs in patterns.
* config/v850/v850.c (print_operand, output_move_double): Use
subreg_regno function.
Co-Authored-By: Andrew MacLeod <amacleod@redhat.com>
Co-Authored-By: David S. Miller <davem@pierdol.cobaltmicro.com>
From-SVN: r41058
2001-04-03 17:06:12 +02:00
|
|
|
|
in = gen_rtx_REG (GET_MODE (in), subreg_regno (in));
|
1992-07-17 11:57:24 +02:00
|
|
|
|
|
|
|
|
|
/* Similarly for OUT. */
|
|
|
|
|
if (out != 0 && GET_CODE (out) == SUBREG
|
|
|
|
|
&& GET_CODE (SUBREG_REG (out)) == REG
|
1995-08-31 14:30:38 +02:00
|
|
|
|
&& REGNO (SUBREG_REG (out)) < FIRST_PSEUDO_REGISTER
|
|
|
|
|
&& ! dont_remove_subreg)
|
Use byte offsets in SUBREGs instead of words.
2001-04-03 Jakub Jelinek <jakub@redhat.com>
David S. Miller <davem@pierdol.cobaltmicro.com>
Andrew MacLeod <amacleod@redhat.com>
Use byte offsets in SUBREGs instead of words.
* alias.c (nonlocal_mentioned_p): Use subreg_regno function.
* caller-save.c (mark_set_regs): Change callers of subreg_hard_regno
to pass new argument.
(add_stored_regs): Use subreg_regno_offset function.
* calls.c (expand_call): For non-paradoxical SUBREG take endianess
into account.
(precompute_arguments): Use gen_lowpart_SUBREG.
* combine.c (try_combine): Replace explicit XEXP with SUBREG_REG.
(combine_simplify_rtx): Rework to use SUBREG_BYTE.
(simplify_set): Rework to use SUBREG_BYTE.
(expand_field_assignment): Use SUBREG_BYTE.
(make_extraction): Use SUBREG_BYTE.
(if_then_else_cond): Use SUBREG_BYTE.
(apply_distributive_law): Use SUBREG_BYTE and fixup subreg comments.
(gen_lowpart_for_combine): Compute full byte offset.
* cse.c (mention_regs): Use SUBREG_BYTE.
(remove_invalid_subreg_refs): Rework to use SUBREG_BYTE.
(canon_hash): Use SUBREG_BYTE.
(fold_rtx): Pass SUBREG_BYTE div UNITS_PER_WORD to operand_subword.
(gen_lowpart_if_possible): Formatting.
* dbxout.c (dbxout_symbol_location): Compute SUBREG hard regnos
correctly.
* dwarf2out.c (is_pseudo_reg): Fixup explicit XEXP into SUBREG_REG
(mem_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
(loc_descriptor): Fixup explicit XEXP into SUBREG_REG
* dwarfout.c (is_pseudo_reg): Fixup explicit XEXP into SUBREG_REG
(output_mem_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
(output_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
* emit-rtl.c (gen_rtx_SUBREG): New function, used to verify
certain invariants about SUBREGs the compiler creates.
(gen_lowpart_SUBREG): New function.
(subreg_hard_regno): New function to get the final register number.
(gen_lowpart_common): Use SUBREG_BYTE.
(gen_imagpart): Spacing nits.
(subreg_realpart_p): Use SUBREG_BYTE.
(gen_highpart): Use SUBREG_BYTE.
(subreg_lowpart_p): Always compute endian corrected goal offset,
even at the byte level, then compare against that.
(constant_subword): New function, pulled out all constant cases
from operand_subword and changed second argument name to offset.
(operand_subword): Detect non REG/SUBREG/CONCAT/MEM cases early
and call constant_subword to do the work. Return const0_rtx if
looking for a word outside of OP.
(operand_subword_force): Change second arg name to offset.
* expmed.c (store_bit_field): Use SUBREG_BYTE.
(store_split_bit_field): Use SUBREG_BYTE.
(extract_bit_field): Use SUBREG_BYTE.
(extract_split_bit_field): Use SUBREG_BYTE.
(expand_shift): Use SUBREG_BYTE.
* expr.c (store_expr, expand_expr): Use gen_lowpart_SUBREG.
* final.c (alter_subreg) Use subreg_hard_regno and SUBREG_BYTE.
* flow.c (set_noop_p): Use SUBREG_BYTE.
(mark_set_1): Remove ALTER_HARD_SUBREG. Use subreg_regno_offset instead.
* function.c (fixup_var_refs_1): Fixup explicit XEXP into a SUBREG_REG.
(fixup_memory_subreg): Use SUBREG_BYTE and remove byte endian
correction code.
(optimize_bit_field): Use SUBREG_BYTE.
(purge_addressof_1): Use SUBREG_BYTE.
(purge_single_hard_subreg_set): Use subreg_regno_offset function.
(assign_params): Mark arguments SUBREG_PROMOTED_VAR_P if they are
actually promoted by the caller and PROMOTE_FOR_CALLS_ONLY is true.
* gengenrtl.c (special_rtx): Add SUBREG.
* global.c (mark_reg_store): Use SUBREG_BYTE.
(set_preference): Rework to use subreg_regno_offset and SUBREG_BYTE.
* ifcvt (noce_emit_move_insn): Use SUBREG_BYTE.
* integrate.c (copy_rtx_and_substitute): Use SUBREG_BYTE and make sure
final byte offset is congruent to subreg's mode size.
(subst_constants): Use SUBREG_BYTE.
(mark_stores): Use subreg_regno_offset function.
* jump.c (rtx_renumbered_equal_p, true_regnum): Use subreg_regno_offset
function and SUBREG_BYTE.
* local-alloc.c (combine_regs): Use subreg_regno_offset function.
(reg_is_born): Use subreg_hard_regno.
* recog.c (valid_replace_rtx_1): Use SUBREG_BYTE and remove byte
endian correction code. Don't combine subregs unless resulting
offset aligns with type. Fix subreg constant extraction for DImode.
Simplify SUBREG of VOIDmode CONST_DOUBLE.
(general_operand): Remove dead mode_altering_drug code.
(indirect_operand): Use SUBREG_BYTE.
(constrain_operands): Use subreg_regno_offset function.
* reg-stack.c (get_true_reg): Use subreg_regno_offset function.
* regmove.c (regmove_optimize): Use SUBREG_BYTE.
(optimize_reg_copy_3): Use gen_lowpart_SUBREG.
* regs.h (REG_SIZE): Allow target to override.
(REGMODE_NATURAL_SIZE): New macro which target can override.
* reload.c (reload_inner_reg_of_subreg): subreg_regno should be used
on the entire subreg rtx.
(push_reload): Use SUBREG_BYTE in comments and code.
(find_dummy_reload): Use subreg_regno_offset. Only adjust offsets
for hard registers inside subregs.
(operands_match_p): Use subreg_regno_offset.
(find_reloads): Use SUBREG_BYTE and only advance offset for subregs
containing hard regs.
(find_reload_toplev): Use SUBREG_BYTE. Remove byte endian
corrections when fixing up MEM subregs.
(find_reloads_address_1): Use SUBREG_BYTE, subreg_regno, and
subreg_regno_offset where appropriate.
(find_reloads_subreg_address): Use SUBREG_BYTE. Remove
byte endian corrections when fixing up MEM subregs.
(subst_reloads): When combining two subregs, make sure final
offset is congruent to subreg's mode size.
(find_replacement): Use SUBREG_BYTE and subreg_regno_offset.
(refers_to_regno_for_reload_p): Use subreg_regno.
(reg_overlap_mentioned_for_reload_p): Use subreg_regno_offset.
* reload1.c (eliminate_regs) Use SUBREG_BYTE. Remove byte endian
correction code for memory subreg fixups.
(forget_old_reload_1): Use subreg_regno_offset.
(choose_reload_regs): Use subreg_regno.
(emit_input_reload_insns): Use SUBREG_BYTE.
(reload_combine_note_store): Use subreg_regno_offset.
(move2add_note_store): Use subreg_regno_offset.
* resource.c (update_live_status, mark_referenced_resources): Use
subreg_regno function.
(mark_set_resources): Use subreg_regno function.
* rtl.h (SUBREG_WORD): Rename to SUBREG_BYTE.
(subreg_regno_offset, subreg_regno): Define prototypes.
(subreg_hard_regno, constant_subword, gen_rtx_SUBREG): Newi functions.
(gen_lowpart_SUBREG): Add prototype.
* rtl.texi (subreg): Update to reflect new byte offset representation.
Add mentioning of the effect that BYTES_BIG_ENDIAN has on subregs now.
* rtlanal.c (refers_to_regno_p): Use subreg_regno.
(reg_overlap_mentioned_p): Use subreg_regno.
(replace_regs); Make sure final offset of combined subreg is
congruent to size of subreg's mode.
(subreg_regno_offset): New function.
(subreg_regno): New function.
* sched-vis.c (print_value): Change SUBREG_WORD to SUBREG_BYTE.
* sdbout.c (sdbout_symbol): Compute offset using alter_subreg.
* stmt.c (expand_anon_union_decl): Use gen_lowpart_SUBREG.
* tm.texi (ALTER_HARD_SUBREG): Remove, it is now dead.
(SUBREG_REGNO_OFFSET): Describe SUBREG_REGNO_OFFSET overrides.
* config/a29k/a29k.c (gpc_reg_operand): Use subreg_regno.
(a29k_get_reloaded_address): Use SUBREG_BYTE.
(print_operand): Use SUBREG_BYTE.
* config/alpha/alpha.c (print_operand_address): Use SUBREG_BYTE.
* config/arm/arm.c (arm_reload_in_hi): Use SUBREG_BYTE.
(arm_reload_out_hi): Use SUBREG_BYTE.
* config/d30v/d30v.c (d30v_split_double): Use subreg_regno_offset
instead of SUBREG_WORD.
(d30v_print_operand_memory_reference): Use subreg_regno_offset.
* config/dsp16xx/dsp16xx.md (extendqihi2, zero_extendqihi2): Fix
SUBREG creation to use byte offset.
* config/h8300/h8300.md (Unnamed HImode zero extraction and 16bit
inverted load insns): Fix explicit rtl subregs to use byte
offsets.
* config/i370/i370.md (cmpstrsi, movstrsi, mulsi3, divsi3,
udivsi3, umodsi3): Generate SUBREGs with byte offsets.
* config/i860/i860.c (single_insn_src_p): Use SUBREG_BYTE.
* config/i860/i860.md (mulsi3_big): Fixup explicit SUBREGs in rtl
to use byte offsets.
(unnamed fmlow.dd insn): Fixup SUBREGS to use byte offsets.
* config/i960/i960.md (extendhisi2): Generate SUBREGs with byte
offsets, also make sure it is congruent to SUBREG's mode size.
(extendqisi2, extendqihi2, zero_extendhisi2, zero_extendqisi2,
unnamed ldob insn): Generate SUBREGs with byte offset.
(zero_extendqihi2): SUBREG's are byte offsets.
* config/m68hc11/m68hc11.c (m68hc11_gen_lowpart): Use SUBREG_BYTE.
(m68hc11_gen_highpart): Use SUBREG_BYTE.
* config/m68k/m68k.md (zero_extendhisi2, zero_extendqihi2,
zero-extendqisi2): Generate SUBREGs with byte offset.
(umulsidi3, mulsidi3, subreghi1ashrdi_const32,
subregsi1ashrdi_const32, subreg1lshrdi_const32): Fixup explicit
subregs in rtl to use byte offsets.
* config/m88k/m88k.md (extendsidi2): fixup subregs to use byte offset.
* config/mips/mips.c (mips_move_1word): Use subreg_regno_offset.
(mips_move_2words): Use subreg_regno_offset.
(mips_secondary_reload_class): Use subreg_regno_offset.
* config/mips/mips.md (DImode plus, minus, move, and logical op
splits): Fixup explicit subregs in rtl to use byte offsets.
* config/mn10200/mn10200.c (print_operand): Use subreg_regno function.
* config/mn10300/mn10300.c (print_operand): Use subreg_regno function.
* config/ns32k/ns32k.md (udivmoddisi4): Fix explicit subregs in
rtl to use byte offsets.
* config/pa/pa.c (emit_move_sequence): Use SUBREG_BYTE.
* config/pa/pa.md (floatunssisf2, floatunssidf2, mulsi3): fix explicit
subregs to use byte offsets.
* config/pdp11/pdp11.md (zero_extendhisi2, modhi3, modhi3+1):
Fixup explicit subregs in rtl to use byte offsets.
* config/romp/romp.c (memory_offset_in_range_p): Use SUBREG_BYTE
and remove byte endian correction code.
* config/sh/sh.c (output_movedouble): Use subreg_regno.
(gen_ashift_hi): Use SUBREG_BYTE.
(regs_used): Use subreg_regno_offset.
(machine_dependent_reorg): Use subreg_regno_offset.
* config/sh/sh.h (INDEX_REGISTER_RTX_P): Use SUBREG_BYTE.
* config/sh/sh.md (DImode and DFmode move splits): Use subreg_regno.
(movdf_i4): Subregs are byte offsets now.
* config/sparc/sparc.c (ultra_find_type): Use SUBREG_BYTE.
* config/sparc/sparc.h (ALTER_HARD_SUBREG): Removed.
(REGMODE_NATURAL_SIZE): Override.
(REG_SIZE): For SUBREG check float mode on SUBREG_REG's mode.
* config/sparc/sparc.md (TFmode move splits): Generate SUBREGs
with byte offsets.
(zero_extendhisi2, zero_extendqidi2_insn, extendhisi2,
extendqihi2, sign_extendqihi2_insn, sign_extendqisi2_insn,
extendqidi2): Generate SUBREGs with byte offsets, also make sure
it is congruent to SUBREG's mode size.
(smulsi3_highpart_v8plus): Fix explicit subregs in rtl to use byte
offsets.
(cmp_siqi_trunc, cmp_siqi_trunc_set, cmp_diqi_trunc,
cmp_diqi_trunc_set, lshrdi3_v8plus+1, lshrdi3_v8plus+2,
lshrdi3_v8plus+3, lshrdi3_v8plus+4): Use proper
SUBREG_BYTE offset for non-paradoxical subregs in patterns.
* config/v850/v850.c (print_operand, output_move_double): Use
subreg_regno function.
Co-Authored-By: Andrew MacLeod <amacleod@redhat.com>
Co-Authored-By: David S. Miller <davem@pierdol.cobaltmicro.com>
From-SVN: r41058
2001-04-03 17:06:12 +02:00
|
|
|
|
out = gen_rtx_REG (GET_MODE (out), subreg_regno (out));
|
1992-07-17 11:57:24 +02:00
|
|
|
|
|
1992-02-28 11:23:25 +01:00
|
|
|
|
/* Narrow down the class of register wanted if that is
|
|
|
|
|
desirable on this machine for efficiency. */
|
|
|
|
|
if (in != 0)
|
|
|
|
|
class = PREFERRED_RELOAD_CLASS (in, class);
|
|
|
|
|
|
1993-01-10 23:49:32 +01:00
|
|
|
|
/* Output reloads may need analogous treatment, different in detail. */
|
1992-07-20 05:07:00 +02:00
|
|
|
|
#ifdef PREFERRED_OUTPUT_RELOAD_CLASS
|
|
|
|
|
if (out != 0)
|
|
|
|
|
class = PREFERRED_OUTPUT_RELOAD_CLASS (out, class);
|
|
|
|
|
#endif
|
|
|
|
|
|
1992-02-28 11:23:25 +01:00
|
|
|
|
/* Make sure we use a class that can handle the actual pseudo
|
|
|
|
|
inside any subreg. For example, on the 386, QImode regs
|
|
|
|
|
can appear within SImode subregs. Although GENERAL_REGS
|
|
|
|
|
can handle SImode, QImode needs a smaller class. */
|
|
|
|
|
#ifdef LIMIT_RELOAD_CLASS
|
|
|
|
|
if (in_subreg_loc)
|
|
|
|
|
class = LIMIT_RELOAD_CLASS (inmode, class);
|
|
|
|
|
else if (in != 0 && GET_CODE (in) == SUBREG)
|
|
|
|
|
class = LIMIT_RELOAD_CLASS (GET_MODE (SUBREG_REG (in)), class);
|
|
|
|
|
|
|
|
|
|
if (out_subreg_loc)
|
|
|
|
|
class = LIMIT_RELOAD_CLASS (outmode, class);
|
|
|
|
|
if (out != 0 && GET_CODE (out) == SUBREG)
|
|
|
|
|
class = LIMIT_RELOAD_CLASS (GET_MODE (SUBREG_REG (out)), class);
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
/* Verify that this class is at least possible for the mode that
|
|
|
|
|
is specified. */
|
|
|
|
|
if (this_insn_is_asm)
|
|
|
|
|
{
|
|
|
|
|
enum machine_mode mode;
|
|
|
|
|
if (GET_MODE_SIZE (inmode) > GET_MODE_SIZE (outmode))
|
|
|
|
|
mode = inmode;
|
|
|
|
|
else
|
|
|
|
|
mode = outmode;
|
1992-12-30 08:28:37 +01:00
|
|
|
|
if (mode == VOIDmode)
|
|
|
|
|
{
|
|
|
|
|
error_for_asm (this_insn, "cannot reload integer constant operand in `asm'");
|
|
|
|
|
mode = word_mode;
|
|
|
|
|
if (in != 0)
|
|
|
|
|
inmode = word_mode;
|
|
|
|
|
if (out != 0)
|
|
|
|
|
outmode = word_mode;
|
|
|
|
|
}
|
1992-02-28 11:23:25 +01:00
|
|
|
|
for (i = 0; i < FIRST_PSEUDO_REGISTER; i++)
|
|
|
|
|
if (HARD_REGNO_MODE_OK (i, mode)
|
|
|
|
|
&& TEST_HARD_REG_BIT (reg_class_contents[(int) class], i))
|
|
|
|
|
{
|
|
|
|
|
int nregs = HARD_REGNO_NREGS (i, mode);
|
|
|
|
|
|
|
|
|
|
int j;
|
|
|
|
|
for (j = 1; j < nregs; j++)
|
|
|
|
|
if (! TEST_HARD_REG_BIT (reg_class_contents[(int) class], i + j))
|
|
|
|
|
break;
|
|
|
|
|
if (j == nregs)
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
if (i == FIRST_PSEUDO_REGISTER)
|
|
|
|
|
{
|
|
|
|
|
error_for_asm (this_insn, "impossible register constraint in `asm'");
|
|
|
|
|
class = ALL_REGS;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
Fix consistency problems with reg_equiv_{mem,address};
Improve reload inheritance;
* reload.c (reload_out_reg): New variable.
(loc_mentioned_in_p, remove_address_replacements): New functions.
(remove_replacements): Deleted.
(push_reload): Set reload_out_reg[i].
When merging, also set reload_{in,out}_reg[i], and remove
duplicate address reloads.
(combine_reloads): Copy reload_out_reg[i].
(find_reloads): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
Include *recog_operand_loc in commutativity operand changes.
Generate optional output reloads.
Delete reference to n_memlocs. Don't set *recog_operand_loc before
processing operands. Call make_memloc in reg_equiv_address code.
Set *recog_operand_loc only after processing operands, and only
if replace is true. Return a value.
When changing address reload types for operands that didn't get
reloaded, use RELOAD_FOR_OPADDR_ADDRESS for
RELOAD_FOR_INPADDR_ADDRESS / RELOAD_FOR_OUTADDR_ADDRESS reloads.
Don't emit USEs for pseudo SUBREGs when not replacing.
(find_reloads_address): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
(find_reloads_toplev): Likewise.
Call make_memloc in reg_equiv_address code.
(debug_reload_to_stream): Add code to output reload_out_reg.
(make_memloc): Delete local variable i, ifdefed out code, and
references to memlocs and n_memlocs.
(memlocs, n_memlocs): Delete.
(push_secondary_reload): Clear reload_out_reg.
(find_reloads_address_1): Provide memrefloc argument to all calls
to find_reloads_address.
In AUTO_INC code, handle non-directly addressable equivalences properly.
* reload.h (reload_out_reg, num_not_at_initial_offset): Declare.
(find_reloads): Add return type.
(remove_address_replacements, deallocate_reload_reg): Declare.
* reload1.c (num_not_at_initial_offset): No longer static.
(delete_address_reloads, delete_address_reloads_1): Likewise.
(deallocate_reload_reg): New function.
(spill_reg_stored_to): New array.
(eliminate_regs): Don't substitute from reg_equiv_memory_loc.
(eliminate_regs_in_insn): Move assignments of previous_offset and
max_offset fields, and recalculation of num_not_at_initial_offset
into new static function:
(update_eliminable_offsets) .
(reload_as_needed): Call update_eliminable_offsetss after calling
find_reloads.
Call forget_old_reloads_1 with contents of reloaded auto_inc
expressions if the actual addressing can't be changed to match the
auto_inc.
(choose_reload_regs): For inheritance, replace
reload_reg_free_before_p test with reload_reg_ions.
(emit_reload_insns): If reload_in is a MEM, set OLD to
reload_in_reg[j].
Don't reload directly from oldequiv; if it's a pseudo with a
stack slot, use reload_in[j].
Check that reload_in_reg[j] is a MEM before replacing reload_in
from reg_reloaded_contents.
Include non-spill registers in reload inheritance processing.
Also try to use reload_out_reg to set spill_reg_store /
reg_last_reload_reg.
In code to set new_spill_reg_store, use single_set to find out if
there is a single set.
Add code that allows to delete optional output reloads.
Add code to allow deletion of output reloads that use no spill reg.
At the end, set reload_override_in to oldequiv.
Also call delete_output_reload if reload_out_reg is equal to old
in oldequiv code.
Add code to call delete_output_reload for stores with no matching load.
Set / use spill_reg_stored_to.
Handle case where secondary output reload uses a temporary, but
actual store isn't found.
When looking for a store of a value not loaded in order to call
delete_output_reload, count_occurences should return 0 for no
loads; but discount inherited input reloadill_reg_stored_to.
Do checks for extra uses of REG. Changed all
callers.
Use delete_address_reloads.
(reload): Take return value of find_reloads into account.
If a no-op set needs more than one reload, delete it.
(reload_reg_free_before_p): RELOAD_FOR_INPUT
can ignore RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS
for the same operand.
(clear_reload_reg_in_use): Check for other reloads that keep a
register in use.
(reload_reg_free_for_value_p): handle RELOAD_FOR_OPERAND_ADDRESS /
RELOAD_FOR_OPADDR_ADDR.
Take into account when an address address reload is only needed
for the address reload we are considering.
(count_occurrences): Use rtx_equal_p for MEMs.
(inc_for_reload): Return instruction that stores into RELOADREG.
New argument two, IN, and rtx. Changed all callers.
(calculate_needs_all_insns, reload_as_needed):
Don't clear after_call for a CLOBBER.
Keep track of how many hard registers need to be copied from
after_call, and don't clear after_call before we have seen
that much copies, or we see a different instruction.
From-SVN: r23143
1998-10-16 21:54:38 +02:00
|
|
|
|
/* Optional output reloads are always OK even if we have no register class,
|
|
|
|
|
since the function of these reloads is only to have spill_reg_store etc.
|
|
|
|
|
set, so that the storing insn can be deleted later. */
|
|
|
|
|
if (class == NO_REGS
|
|
|
|
|
&& (optional == 0 || type != RELOAD_FOR_OUTPUT))
|
1992-12-30 08:28:37 +01:00
|
|
|
|
abort ();
|
|
|
|
|
|
1999-02-03 21:11:56 +01:00
|
|
|
|
i = find_reusable_reload (&in, out, class, type, opnum, dont_share);
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
|
|
|
|
if (i == n_reloads)
|
|
|
|
|
{
|
1994-02-10 15:04:07 +01:00
|
|
|
|
/* See if we need a secondary reload register to move between CLASS
|
|
|
|
|
and IN or CLASS and OUT. Get the icode and push any required reloads
|
|
|
|
|
needed for each of them if so. */
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
|
|
|
|
#ifdef SECONDARY_INPUT_RELOAD_CLASS
|
|
|
|
|
if (in != 0)
|
1994-02-10 15:04:07 +01:00
|
|
|
|
secondary_in_reload
|
|
|
|
|
= push_secondary_reload (1, in, opnum, optional, class, inmode, type,
|
|
|
|
|
&secondary_in_icode);
|
1992-02-28 11:23:25 +01:00
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
#ifdef SECONDARY_OUTPUT_RELOAD_CLASS
|
|
|
|
|
if (out != 0 && GET_CODE (out) != SCRATCH)
|
1994-02-10 15:04:07 +01:00
|
|
|
|
secondary_out_reload
|
|
|
|
|
= push_secondary_reload (0, out, opnum, optional, class, outmode,
|
|
|
|
|
type, &secondary_out_icode);
|
1992-02-28 11:23:25 +01:00
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
/* We found no existing reload suitable for re-use.
|
|
|
|
|
So add an additional reload. */
|
|
|
|
|
|
1997-11-02 22:19:36 +01:00
|
|
|
|
#ifdef SECONDARY_MEMORY_NEEDED
|
|
|
|
|
/* If a memory location is needed for the copy, make one. */
|
|
|
|
|
if (in != 0 && GET_CODE (in) == REG
|
|
|
|
|
&& REGNO (in) < FIRST_PSEUDO_REGISTER
|
|
|
|
|
&& SECONDARY_MEMORY_NEEDED (REGNO_REG_CLASS (REGNO (in)),
|
1999-09-01 16:30:35 +02:00
|
|
|
|
class, inmode))
|
1997-11-02 22:19:36 +01:00
|
|
|
|
get_secondary_mem (in, inmode, opnum, type);
|
|
|
|
|
#endif
|
|
|
|
|
|
1994-02-10 15:04:07 +01:00
|
|
|
|
i = n_reloads;
|
1999-09-12 16:54:56 +02:00
|
|
|
|
rld[i].in = in;
|
|
|
|
|
rld[i].out = out;
|
|
|
|
|
rld[i].class = class;
|
|
|
|
|
rld[i].inmode = inmode;
|
|
|
|
|
rld[i].outmode = outmode;
|
|
|
|
|
rld[i].reg_rtx = 0;
|
|
|
|
|
rld[i].optional = optional;
|
|
|
|
|
rld[i].inc = 0;
|
|
|
|
|
rld[i].nocombine = 0;
|
|
|
|
|
rld[i].in_reg = inloc ? *inloc : 0;
|
|
|
|
|
rld[i].out_reg = outloc ? *outloc : 0;
|
|
|
|
|
rld[i].opnum = opnum;
|
|
|
|
|
rld[i].when_needed = type;
|
|
|
|
|
rld[i].secondary_in_reload = secondary_in_reload;
|
|
|
|
|
rld[i].secondary_out_reload = secondary_out_reload;
|
|
|
|
|
rld[i].secondary_in_icode = secondary_in_icode;
|
|
|
|
|
rld[i].secondary_out_icode = secondary_out_icode;
|
|
|
|
|
rld[i].secondary_p = 0;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
|
|
|
|
n_reloads++;
|
1992-07-17 11:57:24 +02:00
|
|
|
|
|
|
|
|
|
#ifdef SECONDARY_MEMORY_NEEDED
|
|
|
|
|
if (out != 0 && GET_CODE (out) == REG
|
|
|
|
|
&& REGNO (out) < FIRST_PSEUDO_REGISTER
|
|
|
|
|
&& SECONDARY_MEMORY_NEEDED (class, REGNO_REG_CLASS (REGNO (out)),
|
|
|
|
|
outmode))
|
1993-03-29 13:27:52 +02:00
|
|
|
|
get_secondary_mem (out, outmode, opnum, type);
|
1992-07-17 11:57:24 +02:00
|
|
|
|
#endif
|
1992-02-28 11:23:25 +01:00
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
/* We are reusing an existing reload,
|
|
|
|
|
but we may have additional information for it.
|
|
|
|
|
For example, we may now have both IN and OUT
|
|
|
|
|
while the old one may have just one of them. */
|
|
|
|
|
|
1996-04-17 03:04:32 +02:00
|
|
|
|
/* The modes can be different. If they are, we want to reload in
|
|
|
|
|
the larger mode, so that the value is valid for both modes. */
|
|
|
|
|
if (inmode != VOIDmode
|
1999-09-12 16:54:56 +02:00
|
|
|
|
&& GET_MODE_SIZE (inmode) > GET_MODE_SIZE (rld[i].inmode))
|
|
|
|
|
rld[i].inmode = inmode;
|
1996-04-17 03:04:32 +02:00
|
|
|
|
if (outmode != VOIDmode
|
1999-09-12 16:54:56 +02:00
|
|
|
|
&& GET_MODE_SIZE (outmode) > GET_MODE_SIZE (rld[i].outmode))
|
|
|
|
|
rld[i].outmode = outmode;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
if (in != 0)
|
Fix consistency problems with reg_equiv_{mem,address};
Improve reload inheritance;
* reload.c (reload_out_reg): New variable.
(loc_mentioned_in_p, remove_address_replacements): New functions.
(remove_replacements): Deleted.
(push_reload): Set reload_out_reg[i].
When merging, also set reload_{in,out}_reg[i], and remove
duplicate address reloads.
(combine_reloads): Copy reload_out_reg[i].
(find_reloads): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
Include *recog_operand_loc in commutativity operand changes.
Generate optional output reloads.
Delete reference to n_memlocs. Don't set *recog_operand_loc before
processing operands. Call make_memloc in reg_equiv_address code.
Set *recog_operand_loc only after processing operands, and only
if replace is true. Return a value.
When changing address reload types for operands that didn't get
reloaded, use RELOAD_FOR_OPADDR_ADDRESS for
RELOAD_FOR_INPADDR_ADDRESS / RELOAD_FOR_OUTADDR_ADDRESS reloads.
Don't emit USEs for pseudo SUBREGs when not replacing.
(find_reloads_address): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
(find_reloads_toplev): Likewise.
Call make_memloc in reg_equiv_address code.
(debug_reload_to_stream): Add code to output reload_out_reg.
(make_memloc): Delete local variable i, ifdefed out code, and
references to memlocs and n_memlocs.
(memlocs, n_memlocs): Delete.
(push_secondary_reload): Clear reload_out_reg.
(find_reloads_address_1): Provide memrefloc argument to all calls
to find_reloads_address.
In AUTO_INC code, handle non-directly addressable equivalences properly.
* reload.h (reload_out_reg, num_not_at_initial_offset): Declare.
(find_reloads): Add return type.
(remove_address_replacements, deallocate_reload_reg): Declare.
* reload1.c (num_not_at_initial_offset): No longer static.
(delete_address_reloads, delete_address_reloads_1): Likewise.
(deallocate_reload_reg): New function.
(spill_reg_stored_to): New array.
(eliminate_regs): Don't substitute from reg_equiv_memory_loc.
(eliminate_regs_in_insn): Move assignments of previous_offset and
max_offset fields, and recalculation of num_not_at_initial_offset
into new static function:
(update_eliminable_offsets) .
(reload_as_needed): Call update_eliminable_offsetss after calling
find_reloads.
Call forget_old_reloads_1 with contents of reloaded auto_inc
expressions if the actual addressing can't be changed to match the
auto_inc.
(choose_reload_regs): For inheritance, replace
reload_reg_free_before_p test with reload_reg_ions.
(emit_reload_insns): If reload_in is a MEM, set OLD to
reload_in_reg[j].
Don't reload directly from oldequiv; if it's a pseudo with a
stack slot, use reload_in[j].
Check that reload_in_reg[j] is a MEM before replacing reload_in
from reg_reloaded_contents.
Include non-spill registers in reload inheritance processing.
Also try to use reload_out_reg to set spill_reg_store /
reg_last_reload_reg.
In code to set new_spill_reg_store, use single_set to find out if
there is a single set.
Add code that allows to delete optional output reloads.
Add code to allow deletion of output reloads that use no spill reg.
At the end, set reload_override_in to oldequiv.
Also call delete_output_reload if reload_out_reg is equal to old
in oldequiv code.
Add code to call delete_output_reload for stores with no matching load.
Set / use spill_reg_stored_to.
Handle case where secondary output reload uses a temporary, but
actual store isn't found.
When looking for a store of a value not loaded in order to call
delete_output_reload, count_occurences should return 0 for no
loads; but discount inherited input reloadill_reg_stored_to.
Do checks for extra uses of REG. Changed all
callers.
Use delete_address_reloads.
(reload): Take return value of find_reloads into account.
If a no-op set needs more than one reload, delete it.
(reload_reg_free_before_p): RELOAD_FOR_INPUT
can ignore RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS
for the same operand.
(clear_reload_reg_in_use): Check for other reloads that keep a
register in use.
(reload_reg_free_for_value_p): handle RELOAD_FOR_OPERAND_ADDRESS /
RELOAD_FOR_OPADDR_ADDR.
Take into account when an address address reload is only needed
for the address reload we are considering.
(count_occurrences): Use rtx_equal_p for MEMs.
(inc_for_reload): Return instruction that stores into RELOADREG.
New argument two, IN, and rtx. Changed all callers.
(calculate_needs_all_insns, reload_as_needed):
Don't clear after_call for a CLOBBER.
Keep track of how many hard registers need to be copied from
after_call, and don't clear after_call before we have seen
that much copies, or we see a different instruction.
From-SVN: r23143
1998-10-16 21:54:38 +02:00
|
|
|
|
{
|
1998-10-25 13:13:14 +01:00
|
|
|
|
rtx in_reg = inloc ? *inloc : 0;
|
Fix consistency problems with reg_equiv_{mem,address};
Improve reload inheritance;
* reload.c (reload_out_reg): New variable.
(loc_mentioned_in_p, remove_address_replacements): New functions.
(remove_replacements): Deleted.
(push_reload): Set reload_out_reg[i].
When merging, also set reload_{in,out}_reg[i], and remove
duplicate address reloads.
(combine_reloads): Copy reload_out_reg[i].
(find_reloads): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
Include *recog_operand_loc in commutativity operand changes.
Generate optional output reloads.
Delete reference to n_memlocs. Don't set *recog_operand_loc before
processing operands. Call make_memloc in reg_equiv_address code.
Set *recog_operand_loc only after processing operands, and only
if replace is true. Return a value.
When changing address reload types for operands that didn't get
reloaded, use RELOAD_FOR_OPADDR_ADDRESS for
RELOAD_FOR_INPADDR_ADDRESS / RELOAD_FOR_OUTADDR_ADDRESS reloads.
Don't emit USEs for pseudo SUBREGs when not replacing.
(find_reloads_address): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
(find_reloads_toplev): Likewise.
Call make_memloc in reg_equiv_address code.
(debug_reload_to_stream): Add code to output reload_out_reg.
(make_memloc): Delete local variable i, ifdefed out code, and
references to memlocs and n_memlocs.
(memlocs, n_memlocs): Delete.
(push_secondary_reload): Clear reload_out_reg.
(find_reloads_address_1): Provide memrefloc argument to all calls
to find_reloads_address.
In AUTO_INC code, handle non-directly addressable equivalences properly.
* reload.h (reload_out_reg, num_not_at_initial_offset): Declare.
(find_reloads): Add return type.
(remove_address_replacements, deallocate_reload_reg): Declare.
* reload1.c (num_not_at_initial_offset): No longer static.
(delete_address_reloads, delete_address_reloads_1): Likewise.
(deallocate_reload_reg): New function.
(spill_reg_stored_to): New array.
(eliminate_regs): Don't substitute from reg_equiv_memory_loc.
(eliminate_regs_in_insn): Move assignments of previous_offset and
max_offset fields, and recalculation of num_not_at_initial_offset
into new static function:
(update_eliminable_offsets) .
(reload_as_needed): Call update_eliminable_offsetss after calling
find_reloads.
Call forget_old_reloads_1 with contents of reloaded auto_inc
expressions if the actual addressing can't be changed to match the
auto_inc.
(choose_reload_regs): For inheritance, replace
reload_reg_free_before_p test with reload_reg_ions.
(emit_reload_insns): If reload_in is a MEM, set OLD to
reload_in_reg[j].
Don't reload directly from oldequiv; if it's a pseudo with a
stack slot, use reload_in[j].
Check that reload_in_reg[j] is a MEM before replacing reload_in
from reg_reloaded_contents.
Include non-spill registers in reload inheritance processing.
Also try to use reload_out_reg to set spill_reg_store /
reg_last_reload_reg.
In code to set new_spill_reg_store, use single_set to find out if
there is a single set.
Add code that allows to delete optional output reloads.
Add code to allow deletion of output reloads that use no spill reg.
At the end, set reload_override_in to oldequiv.
Also call delete_output_reload if reload_out_reg is equal to old
in oldequiv code.
Add code to call delete_output_reload for stores with no matching load.
Set / use spill_reg_stored_to.
Handle case where secondary output reload uses a temporary, but
actual store isn't found.
When looking for a store of a value not loaded in order to call
delete_output_reload, count_occurences should return 0 for no
loads; but discount inherited input reloadill_reg_stored_to.
Do checks for extra uses of REG. Changed all
callers.
Use delete_address_reloads.
(reload): Take return value of find_reloads into account.
If a no-op set needs more than one reload, delete it.
(reload_reg_free_before_p): RELOAD_FOR_INPUT
can ignore RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS
for the same operand.
(clear_reload_reg_in_use): Check for other reloads that keep a
register in use.
(reload_reg_free_for_value_p): handle RELOAD_FOR_OPERAND_ADDRESS /
RELOAD_FOR_OPADDR_ADDR.
Take into account when an address address reload is only needed
for the address reload we are considering.
(count_occurrences): Use rtx_equal_p for MEMs.
(inc_for_reload): Return instruction that stores into RELOADREG.
New argument two, IN, and rtx. Changed all callers.
(calculate_needs_all_insns, reload_as_needed):
Don't clear after_call for a CLOBBER.
Keep track of how many hard registers need to be copied from
after_call, and don't clear after_call before we have seen
that much copies, or we see a different instruction.
From-SVN: r23143
1998-10-16 21:54:38 +02:00
|
|
|
|
/* If we merge reloads for two distinct rtl expressions that
|
|
|
|
|
are identical in content, there might be duplicate address
|
|
|
|
|
reloads. Remove the extra set now, so that if we later find
|
|
|
|
|
that we can inherit this reload, we can get rid of the
|
1999-05-27 03:19:12 +02:00
|
|
|
|
address reloads altogether.
|
|
|
|
|
|
|
|
|
|
Do not do this if both reloads are optional since the result
|
|
|
|
|
would be an optional reload which could potentially leave
|
|
|
|
|
unresolved address replacements.
|
|
|
|
|
|
|
|
|
|
It is not sufficient to call transfer_replacements since
|
|
|
|
|
choose_reload_regs will remove the replacements for address
|
|
|
|
|
reloads of inherited reloads which results in the same
|
|
|
|
|
problem. */
|
1999-09-12 16:54:56 +02:00
|
|
|
|
if (rld[i].in != in && rtx_equal_p (in, rld[i].in)
|
|
|
|
|
&& ! (rld[i].optional && optional))
|
Fix consistency problems with reg_equiv_{mem,address};
Improve reload inheritance;
* reload.c (reload_out_reg): New variable.
(loc_mentioned_in_p, remove_address_replacements): New functions.
(remove_replacements): Deleted.
(push_reload): Set reload_out_reg[i].
When merging, also set reload_{in,out}_reg[i], and remove
duplicate address reloads.
(combine_reloads): Copy reload_out_reg[i].
(find_reloads): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
Include *recog_operand_loc in commutativity operand changes.
Generate optional output reloads.
Delete reference to n_memlocs. Don't set *recog_operand_loc before
processing operands. Call make_memloc in reg_equiv_address code.
Set *recog_operand_loc only after processing operands, and only
if replace is true. Return a value.
When changing address reload types for operands that didn't get
reloaded, use RELOAD_FOR_OPADDR_ADDRESS for
RELOAD_FOR_INPADDR_ADDRESS / RELOAD_FOR_OUTADDR_ADDRESS reloads.
Don't emit USEs for pseudo SUBREGs when not replacing.
(find_reloads_address): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
(find_reloads_toplev): Likewise.
Call make_memloc in reg_equiv_address code.
(debug_reload_to_stream): Add code to output reload_out_reg.
(make_memloc): Delete local variable i, ifdefed out code, and
references to memlocs and n_memlocs.
(memlocs, n_memlocs): Delete.
(push_secondary_reload): Clear reload_out_reg.
(find_reloads_address_1): Provide memrefloc argument to all calls
to find_reloads_address.
In AUTO_INC code, handle non-directly addressable equivalences properly.
* reload.h (reload_out_reg, num_not_at_initial_offset): Declare.
(find_reloads): Add return type.
(remove_address_replacements, deallocate_reload_reg): Declare.
* reload1.c (num_not_at_initial_offset): No longer static.
(delete_address_reloads, delete_address_reloads_1): Likewise.
(deallocate_reload_reg): New function.
(spill_reg_stored_to): New array.
(eliminate_regs): Don't substitute from reg_equiv_memory_loc.
(eliminate_regs_in_insn): Move assignments of previous_offset and
max_offset fields, and recalculation of num_not_at_initial_offset
into new static function:
(update_eliminable_offsets) .
(reload_as_needed): Call update_eliminable_offsetss after calling
find_reloads.
Call forget_old_reloads_1 with contents of reloaded auto_inc
expressions if the actual addressing can't be changed to match the
auto_inc.
(choose_reload_regs): For inheritance, replace
reload_reg_free_before_p test with reload_reg_ions.
(emit_reload_insns): If reload_in is a MEM, set OLD to
reload_in_reg[j].
Don't reload directly from oldequiv; if it's a pseudo with a
stack slot, use reload_in[j].
Check that reload_in_reg[j] is a MEM before replacing reload_in
from reg_reloaded_contents.
Include non-spill registers in reload inheritance processing.
Also try to use reload_out_reg to set spill_reg_store /
reg_last_reload_reg.
In code to set new_spill_reg_store, use single_set to find out if
there is a single set.
Add code that allows to delete optional output reloads.
Add code to allow deletion of output reloads that use no spill reg.
At the end, set reload_override_in to oldequiv.
Also call delete_output_reload if reload_out_reg is equal to old
in oldequiv code.
Add code to call delete_output_reload for stores with no matching load.
Set / use spill_reg_stored_to.
Handle case where secondary output reload uses a temporary, but
actual store isn't found.
When looking for a store of a value not loaded in order to call
delete_output_reload, count_occurences should return 0 for no
loads; but discount inherited input reloadill_reg_stored_to.
Do checks for extra uses of REG. Changed all
callers.
Use delete_address_reloads.
(reload): Take return value of find_reloads into account.
If a no-op set needs more than one reload, delete it.
(reload_reg_free_before_p): RELOAD_FOR_INPUT
can ignore RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS
for the same operand.
(clear_reload_reg_in_use): Check for other reloads that keep a
register in use.
(reload_reg_free_for_value_p): handle RELOAD_FOR_OPERAND_ADDRESS /
RELOAD_FOR_OPADDR_ADDR.
Take into account when an address address reload is only needed
for the address reload we are considering.
(count_occurrences): Use rtx_equal_p for MEMs.
(inc_for_reload): Return instruction that stores into RELOADREG.
New argument two, IN, and rtx. Changed all callers.
(calculate_needs_all_insns, reload_as_needed):
Don't clear after_call for a CLOBBER.
Keep track of how many hard registers need to be copied from
after_call, and don't clear after_call before we have seen
that much copies, or we see a different instruction.
From-SVN: r23143
1998-10-16 21:54:38 +02:00
|
|
|
|
{
|
|
|
|
|
/* We must keep the address reload with the lower operand
|
|
|
|
|
number alive. */
|
1999-09-12 16:54:56 +02:00
|
|
|
|
if (opnum > rld[i].opnum)
|
Fix consistency problems with reg_equiv_{mem,address};
Improve reload inheritance;
* reload.c (reload_out_reg): New variable.
(loc_mentioned_in_p, remove_address_replacements): New functions.
(remove_replacements): Deleted.
(push_reload): Set reload_out_reg[i].
When merging, also set reload_{in,out}_reg[i], and remove
duplicate address reloads.
(combine_reloads): Copy reload_out_reg[i].
(find_reloads): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
Include *recog_operand_loc in commutativity operand changes.
Generate optional output reloads.
Delete reference to n_memlocs. Don't set *recog_operand_loc before
processing operands. Call make_memloc in reg_equiv_address code.
Set *recog_operand_loc only after processing operands, and only
if replace is true. Return a value.
When changing address reload types for operands that didn't get
reloaded, use RELOAD_FOR_OPADDR_ADDRESS for
RELOAD_FOR_INPADDR_ADDRESS / RELOAD_FOR_OUTADDR_ADDRESS reloads.
Don't emit USEs for pseudo SUBREGs when not replacing.
(find_reloads_address): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
(find_reloads_toplev): Likewise.
Call make_memloc in reg_equiv_address code.
(debug_reload_to_stream): Add code to output reload_out_reg.
(make_memloc): Delete local variable i, ifdefed out code, and
references to memlocs and n_memlocs.
(memlocs, n_memlocs): Delete.
(push_secondary_reload): Clear reload_out_reg.
(find_reloads_address_1): Provide memrefloc argument to all calls
to find_reloads_address.
In AUTO_INC code, handle non-directly addressable equivalences properly.
* reload.h (reload_out_reg, num_not_at_initial_offset): Declare.
(find_reloads): Add return type.
(remove_address_replacements, deallocate_reload_reg): Declare.
* reload1.c (num_not_at_initial_offset): No longer static.
(delete_address_reloads, delete_address_reloads_1): Likewise.
(deallocate_reload_reg): New function.
(spill_reg_stored_to): New array.
(eliminate_regs): Don't substitute from reg_equiv_memory_loc.
(eliminate_regs_in_insn): Move assignments of previous_offset and
max_offset fields, and recalculation of num_not_at_initial_offset
into new static function:
(update_eliminable_offsets) .
(reload_as_needed): Call update_eliminable_offsetss after calling
find_reloads.
Call forget_old_reloads_1 with contents of reloaded auto_inc
expressions if the actual addressing can't be changed to match the
auto_inc.
(choose_reload_regs): For inheritance, replace
reload_reg_free_before_p test with reload_reg_ions.
(emit_reload_insns): If reload_in is a MEM, set OLD to
reload_in_reg[j].
Don't reload directly from oldequiv; if it's a pseudo with a
stack slot, use reload_in[j].
Check that reload_in_reg[j] is a MEM before replacing reload_in
from reg_reloaded_contents.
Include non-spill registers in reload inheritance processing.
Also try to use reload_out_reg to set spill_reg_store /
reg_last_reload_reg.
In code to set new_spill_reg_store, use single_set to find out if
there is a single set.
Add code that allows to delete optional output reloads.
Add code to allow deletion of output reloads that use no spill reg.
At the end, set reload_override_in to oldequiv.
Also call delete_output_reload if reload_out_reg is equal to old
in oldequiv code.
Add code to call delete_output_reload for stores with no matching load.
Set / use spill_reg_stored_to.
Handle case where secondary output reload uses a temporary, but
actual store isn't found.
When looking for a store of a value not loaded in order to call
delete_output_reload, count_occurences should return 0 for no
loads; but discount inherited input reloadill_reg_stored_to.
Do checks for extra uses of REG. Changed all
callers.
Use delete_address_reloads.
(reload): Take return value of find_reloads into account.
If a no-op set needs more than one reload, delete it.
(reload_reg_free_before_p): RELOAD_FOR_INPUT
can ignore RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS
for the same operand.
(clear_reload_reg_in_use): Check for other reloads that keep a
register in use.
(reload_reg_free_for_value_p): handle RELOAD_FOR_OPERAND_ADDRESS /
RELOAD_FOR_OPADDR_ADDR.
Take into account when an address address reload is only needed
for the address reload we are considering.
(count_occurrences): Use rtx_equal_p for MEMs.
(inc_for_reload): Return instruction that stores into RELOADREG.
New argument two, IN, and rtx. Changed all callers.
(calculate_needs_all_insns, reload_as_needed):
Don't clear after_call for a CLOBBER.
Keep track of how many hard registers need to be copied from
after_call, and don't clear after_call before we have seen
that much copies, or we see a different instruction.
From-SVN: r23143
1998-10-16 21:54:38 +02:00
|
|
|
|
{
|
|
|
|
|
remove_address_replacements (in);
|
1999-09-12 16:54:56 +02:00
|
|
|
|
in = rld[i].in;
|
|
|
|
|
in_reg = rld[i].in_reg;
|
Fix consistency problems with reg_equiv_{mem,address};
Improve reload inheritance;
* reload.c (reload_out_reg): New variable.
(loc_mentioned_in_p, remove_address_replacements): New functions.
(remove_replacements): Deleted.
(push_reload): Set reload_out_reg[i].
When merging, also set reload_{in,out}_reg[i], and remove
duplicate address reloads.
(combine_reloads): Copy reload_out_reg[i].
(find_reloads): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
Include *recog_operand_loc in commutativity operand changes.
Generate optional output reloads.
Delete reference to n_memlocs. Don't set *recog_operand_loc before
processing operands. Call make_memloc in reg_equiv_address code.
Set *recog_operand_loc only after processing operands, and only
if replace is true. Return a value.
When changing address reload types for operands that didn't get
reloaded, use RELOAD_FOR_OPADDR_ADDRESS for
RELOAD_FOR_INPADDR_ADDRESS / RELOAD_FOR_OUTADDR_ADDRESS reloads.
Don't emit USEs for pseudo SUBREGs when not replacing.
(find_reloads_address): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
(find_reloads_toplev): Likewise.
Call make_memloc in reg_equiv_address code.
(debug_reload_to_stream): Add code to output reload_out_reg.
(make_memloc): Delete local variable i, ifdefed out code, and
references to memlocs and n_memlocs.
(memlocs, n_memlocs): Delete.
(push_secondary_reload): Clear reload_out_reg.
(find_reloads_address_1): Provide memrefloc argument to all calls
to find_reloads_address.
In AUTO_INC code, handle non-directly addressable equivalences properly.
* reload.h (reload_out_reg, num_not_at_initial_offset): Declare.
(find_reloads): Add return type.
(remove_address_replacements, deallocate_reload_reg): Declare.
* reload1.c (num_not_at_initial_offset): No longer static.
(delete_address_reloads, delete_address_reloads_1): Likewise.
(deallocate_reload_reg): New function.
(spill_reg_stored_to): New array.
(eliminate_regs): Don't substitute from reg_equiv_memory_loc.
(eliminate_regs_in_insn): Move assignments of previous_offset and
max_offset fields, and recalculation of num_not_at_initial_offset
into new static function:
(update_eliminable_offsets) .
(reload_as_needed): Call update_eliminable_offsetss after calling
find_reloads.
Call forget_old_reloads_1 with contents of reloaded auto_inc
expressions if the actual addressing can't be changed to match the
auto_inc.
(choose_reload_regs): For inheritance, replace
reload_reg_free_before_p test with reload_reg_ions.
(emit_reload_insns): If reload_in is a MEM, set OLD to
reload_in_reg[j].
Don't reload directly from oldequiv; if it's a pseudo with a
stack slot, use reload_in[j].
Check that reload_in_reg[j] is a MEM before replacing reload_in
from reg_reloaded_contents.
Include non-spill registers in reload inheritance processing.
Also try to use reload_out_reg to set spill_reg_store /
reg_last_reload_reg.
In code to set new_spill_reg_store, use single_set to find out if
there is a single set.
Add code that allows to delete optional output reloads.
Add code to allow deletion of output reloads that use no spill reg.
At the end, set reload_override_in to oldequiv.
Also call delete_output_reload if reload_out_reg is equal to old
in oldequiv code.
Add code to call delete_output_reload for stores with no matching load.
Set / use spill_reg_stored_to.
Handle case where secondary output reload uses a temporary, but
actual store isn't found.
When looking for a store of a value not loaded in order to call
delete_output_reload, count_occurences should return 0 for no
loads; but discount inherited input reloadill_reg_stored_to.
Do checks for extra uses of REG. Changed all
callers.
Use delete_address_reloads.
(reload): Take return value of find_reloads into account.
If a no-op set needs more than one reload, delete it.
(reload_reg_free_before_p): RELOAD_FOR_INPUT
can ignore RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS
for the same operand.
(clear_reload_reg_in_use): Check for other reloads that keep a
register in use.
(reload_reg_free_for_value_p): handle RELOAD_FOR_OPERAND_ADDRESS /
RELOAD_FOR_OPADDR_ADDR.
Take into account when an address address reload is only needed
for the address reload we are considering.
(count_occurrences): Use rtx_equal_p for MEMs.
(inc_for_reload): Return instruction that stores into RELOADREG.
New argument two, IN, and rtx. Changed all callers.
(calculate_needs_all_insns, reload_as_needed):
Don't clear after_call for a CLOBBER.
Keep track of how many hard registers need to be copied from
after_call, and don't clear after_call before we have seen
that much copies, or we see a different instruction.
From-SVN: r23143
1998-10-16 21:54:38 +02:00
|
|
|
|
}
|
|
|
|
|
else
|
1999-09-12 16:54:56 +02:00
|
|
|
|
remove_address_replacements (rld[i].in);
|
Fix consistency problems with reg_equiv_{mem,address};
Improve reload inheritance;
* reload.c (reload_out_reg): New variable.
(loc_mentioned_in_p, remove_address_replacements): New functions.
(remove_replacements): Deleted.
(push_reload): Set reload_out_reg[i].
When merging, also set reload_{in,out}_reg[i], and remove
duplicate address reloads.
(combine_reloads): Copy reload_out_reg[i].
(find_reloads): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
Include *recog_operand_loc in commutativity operand changes.
Generate optional output reloads.
Delete reference to n_memlocs. Don't set *recog_operand_loc before
processing operands. Call make_memloc in reg_equiv_address code.
Set *recog_operand_loc only after processing operands, and only
if replace is true. Return a value.
When changing address reload types for operands that didn't get
reloaded, use RELOAD_FOR_OPADDR_ADDRESS for
RELOAD_FOR_INPADDR_ADDRESS / RELOAD_FOR_OUTADDR_ADDRESS reloads.
Don't emit USEs for pseudo SUBREGs when not replacing.
(find_reloads_address): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
(find_reloads_toplev): Likewise.
Call make_memloc in reg_equiv_address code.
(debug_reload_to_stream): Add code to output reload_out_reg.
(make_memloc): Delete local variable i, ifdefed out code, and
references to memlocs and n_memlocs.
(memlocs, n_memlocs): Delete.
(push_secondary_reload): Clear reload_out_reg.
(find_reloads_address_1): Provide memrefloc argument to all calls
to find_reloads_address.
In AUTO_INC code, handle non-directly addressable equivalences properly.
* reload.h (reload_out_reg, num_not_at_initial_offset): Declare.
(find_reloads): Add return type.
(remove_address_replacements, deallocate_reload_reg): Declare.
* reload1.c (num_not_at_initial_offset): No longer static.
(delete_address_reloads, delete_address_reloads_1): Likewise.
(deallocate_reload_reg): New function.
(spill_reg_stored_to): New array.
(eliminate_regs): Don't substitute from reg_equiv_memory_loc.
(eliminate_regs_in_insn): Move assignments of previous_offset and
max_offset fields, and recalculation of num_not_at_initial_offset
into new static function:
(update_eliminable_offsets) .
(reload_as_needed): Call update_eliminable_offsetss after calling
find_reloads.
Call forget_old_reloads_1 with contents of reloaded auto_inc
expressions if the actual addressing can't be changed to match the
auto_inc.
(choose_reload_regs): For inheritance, replace
reload_reg_free_before_p test with reload_reg_ions.
(emit_reload_insns): If reload_in is a MEM, set OLD to
reload_in_reg[j].
Don't reload directly from oldequiv; if it's a pseudo with a
stack slot, use reload_in[j].
Check that reload_in_reg[j] is a MEM before replacing reload_in
from reg_reloaded_contents.
Include non-spill registers in reload inheritance processing.
Also try to use reload_out_reg to set spill_reg_store /
reg_last_reload_reg.
In code to set new_spill_reg_store, use single_set to find out if
there is a single set.
Add code that allows to delete optional output reloads.
Add code to allow deletion of output reloads that use no spill reg.
At the end, set reload_override_in to oldequiv.
Also call delete_output_reload if reload_out_reg is equal to old
in oldequiv code.
Add code to call delete_output_reload for stores with no matching load.
Set / use spill_reg_stored_to.
Handle case where secondary output reload uses a temporary, but
actual store isn't found.
When looking for a store of a value not loaded in order to call
delete_output_reload, count_occurences should return 0 for no
loads; but discount inherited input reloadill_reg_stored_to.
Do checks for extra uses of REG. Changed all
callers.
Use delete_address_reloads.
(reload): Take return value of find_reloads into account.
If a no-op set needs more than one reload, delete it.
(reload_reg_free_before_p): RELOAD_FOR_INPUT
can ignore RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS
for the same operand.
(clear_reload_reg_in_use): Check for other reloads that keep a
register in use.
(reload_reg_free_for_value_p): handle RELOAD_FOR_OPERAND_ADDRESS /
RELOAD_FOR_OPADDR_ADDR.
Take into account when an address address reload is only needed
for the address reload we are considering.
(count_occurrences): Use rtx_equal_p for MEMs.
(inc_for_reload): Return instruction that stores into RELOADREG.
New argument two, IN, and rtx. Changed all callers.
(calculate_needs_all_insns, reload_as_needed):
Don't clear after_call for a CLOBBER.
Keep track of how many hard registers need to be copied from
after_call, and don't clear after_call before we have seen
that much copies, or we see a different instruction.
From-SVN: r23143
1998-10-16 21:54:38 +02:00
|
|
|
|
}
|
1999-09-12 16:54:56 +02:00
|
|
|
|
rld[i].in = in;
|
|
|
|
|
rld[i].in_reg = in_reg;
|
Fix consistency problems with reg_equiv_{mem,address};
Improve reload inheritance;
* reload.c (reload_out_reg): New variable.
(loc_mentioned_in_p, remove_address_replacements): New functions.
(remove_replacements): Deleted.
(push_reload): Set reload_out_reg[i].
When merging, also set reload_{in,out}_reg[i], and remove
duplicate address reloads.
(combine_reloads): Copy reload_out_reg[i].
(find_reloads): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
Include *recog_operand_loc in commutativity operand changes.
Generate optional output reloads.
Delete reference to n_memlocs. Don't set *recog_operand_loc before
processing operands. Call make_memloc in reg_equiv_address code.
Set *recog_operand_loc only after processing operands, and only
if replace is true. Return a value.
When changing address reload types for operands that didn't get
reloaded, use RELOAD_FOR_OPADDR_ADDRESS for
RELOAD_FOR_INPADDR_ADDRESS / RELOAD_FOR_OUTADDR_ADDRESS reloads.
Don't emit USEs for pseudo SUBREGs when not replacing.
(find_reloads_address): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
(find_reloads_toplev): Likewise.
Call make_memloc in reg_equiv_address code.
(debug_reload_to_stream): Add code to output reload_out_reg.
(make_memloc): Delete local variable i, ifdefed out code, and
references to memlocs and n_memlocs.
(memlocs, n_memlocs): Delete.
(push_secondary_reload): Clear reload_out_reg.
(find_reloads_address_1): Provide memrefloc argument to all calls
to find_reloads_address.
In AUTO_INC code, handle non-directly addressable equivalences properly.
* reload.h (reload_out_reg, num_not_at_initial_offset): Declare.
(find_reloads): Add return type.
(remove_address_replacements, deallocate_reload_reg): Declare.
* reload1.c (num_not_at_initial_offset): No longer static.
(delete_address_reloads, delete_address_reloads_1): Likewise.
(deallocate_reload_reg): New function.
(spill_reg_stored_to): New array.
(eliminate_regs): Don't substitute from reg_equiv_memory_loc.
(eliminate_regs_in_insn): Move assignments of previous_offset and
max_offset fields, and recalculation of num_not_at_initial_offset
into new static function:
(update_eliminable_offsets) .
(reload_as_needed): Call update_eliminable_offsetss after calling
find_reloads.
Call forget_old_reloads_1 with contents of reloaded auto_inc
expressions if the actual addressing can't be changed to match the
auto_inc.
(choose_reload_regs): For inheritance, replace
reload_reg_free_before_p test with reload_reg_ions.
(emit_reload_insns): If reload_in is a MEM, set OLD to
reload_in_reg[j].
Don't reload directly from oldequiv; if it's a pseudo with a
stack slot, use reload_in[j].
Check that reload_in_reg[j] is a MEM before replacing reload_in
from reg_reloaded_contents.
Include non-spill registers in reload inheritance processing.
Also try to use reload_out_reg to set spill_reg_store /
reg_last_reload_reg.
In code to set new_spill_reg_store, use single_set to find out if
there is a single set.
Add code that allows to delete optional output reloads.
Add code to allow deletion of output reloads that use no spill reg.
At the end, set reload_override_in to oldequiv.
Also call delete_output_reload if reload_out_reg is equal to old
in oldequiv code.
Add code to call delete_output_reload for stores with no matching load.
Set / use spill_reg_stored_to.
Handle case where secondary output reload uses a temporary, but
actual store isn't found.
When looking for a store of a value not loaded in order to call
delete_output_reload, count_occurences should return 0 for no
loads; but discount inherited input reloadill_reg_stored_to.
Do checks for extra uses of REG. Changed all
callers.
Use delete_address_reloads.
(reload): Take return value of find_reloads into account.
If a no-op set needs more than one reload, delete it.
(reload_reg_free_before_p): RELOAD_FOR_INPUT
can ignore RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS
for the same operand.
(clear_reload_reg_in_use): Check for other reloads that keep a
register in use.
(reload_reg_free_for_value_p): handle RELOAD_FOR_OPERAND_ADDRESS /
RELOAD_FOR_OPADDR_ADDR.
Take into account when an address address reload is only needed
for the address reload we are considering.
(count_occurrences): Use rtx_equal_p for MEMs.
(inc_for_reload): Return instruction that stores into RELOADREG.
New argument two, IN, and rtx. Changed all callers.
(calculate_needs_all_insns, reload_as_needed):
Don't clear after_call for a CLOBBER.
Keep track of how many hard registers need to be copied from
after_call, and don't clear after_call before we have seen
that much copies, or we see a different instruction.
From-SVN: r23143
1998-10-16 21:54:38 +02:00
|
|
|
|
}
|
1992-02-28 11:23:25 +01:00
|
|
|
|
if (out != 0)
|
Fix consistency problems with reg_equiv_{mem,address};
Improve reload inheritance;
* reload.c (reload_out_reg): New variable.
(loc_mentioned_in_p, remove_address_replacements): New functions.
(remove_replacements): Deleted.
(push_reload): Set reload_out_reg[i].
When merging, also set reload_{in,out}_reg[i], and remove
duplicate address reloads.
(combine_reloads): Copy reload_out_reg[i].
(find_reloads): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
Include *recog_operand_loc in commutativity operand changes.
Generate optional output reloads.
Delete reference to n_memlocs. Don't set *recog_operand_loc before
processing operands. Call make_memloc in reg_equiv_address code.
Set *recog_operand_loc only after processing operands, and only
if replace is true. Return a value.
When changing address reload types for operands that didn't get
reloaded, use RELOAD_FOR_OPADDR_ADDRESS for
RELOAD_FOR_INPADDR_ADDRESS / RELOAD_FOR_OUTADDR_ADDRESS reloads.
Don't emit USEs for pseudo SUBREGs when not replacing.
(find_reloads_address): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
(find_reloads_toplev): Likewise.
Call make_memloc in reg_equiv_address code.
(debug_reload_to_stream): Add code to output reload_out_reg.
(make_memloc): Delete local variable i, ifdefed out code, and
references to memlocs and n_memlocs.
(memlocs, n_memlocs): Delete.
(push_secondary_reload): Clear reload_out_reg.
(find_reloads_address_1): Provide memrefloc argument to all calls
to find_reloads_address.
In AUTO_INC code, handle non-directly addressable equivalences properly.
* reload.h (reload_out_reg, num_not_at_initial_offset): Declare.
(find_reloads): Add return type.
(remove_address_replacements, deallocate_reload_reg): Declare.
* reload1.c (num_not_at_initial_offset): No longer static.
(delete_address_reloads, delete_address_reloads_1): Likewise.
(deallocate_reload_reg): New function.
(spill_reg_stored_to): New array.
(eliminate_regs): Don't substitute from reg_equiv_memory_loc.
(eliminate_regs_in_insn): Move assignments of previous_offset and
max_offset fields, and recalculation of num_not_at_initial_offset
into new static function:
(update_eliminable_offsets) .
(reload_as_needed): Call update_eliminable_offsetss after calling
find_reloads.
Call forget_old_reloads_1 with contents of reloaded auto_inc
expressions if the actual addressing can't be changed to match the
auto_inc.
(choose_reload_regs): For inheritance, replace
reload_reg_free_before_p test with reload_reg_ions.
(emit_reload_insns): If reload_in is a MEM, set OLD to
reload_in_reg[j].
Don't reload directly from oldequiv; if it's a pseudo with a
stack slot, use reload_in[j].
Check that reload_in_reg[j] is a MEM before replacing reload_in
from reg_reloaded_contents.
Include non-spill registers in reload inheritance processing.
Also try to use reload_out_reg to set spill_reg_store /
reg_last_reload_reg.
In code to set new_spill_reg_store, use single_set to find out if
there is a single set.
Add code that allows to delete optional output reloads.
Add code to allow deletion of output reloads that use no spill reg.
At the end, set reload_override_in to oldequiv.
Also call delete_output_reload if reload_out_reg is equal to old
in oldequiv code.
Add code to call delete_output_reload for stores with no matching load.
Set / use spill_reg_stored_to.
Handle case where secondary output reload uses a temporary, but
actual store isn't found.
When looking for a store of a value not loaded in order to call
delete_output_reload, count_occurences should return 0 for no
loads; but discount inherited input reloadill_reg_stored_to.
Do checks for extra uses of REG. Changed all
callers.
Use delete_address_reloads.
(reload): Take return value of find_reloads into account.
If a no-op set needs more than one reload, delete it.
(reload_reg_free_before_p): RELOAD_FOR_INPUT
can ignore RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS
for the same operand.
(clear_reload_reg_in_use): Check for other reloads that keep a
register in use.
(reload_reg_free_for_value_p): handle RELOAD_FOR_OPERAND_ADDRESS /
RELOAD_FOR_OPADDR_ADDR.
Take into account when an address address reload is only needed
for the address reload we are considering.
(count_occurrences): Use rtx_equal_p for MEMs.
(inc_for_reload): Return instruction that stores into RELOADREG.
New argument two, IN, and rtx. Changed all callers.
(calculate_needs_all_insns, reload_as_needed):
Don't clear after_call for a CLOBBER.
Keep track of how many hard registers need to be copied from
after_call, and don't clear after_call before we have seen
that much copies, or we see a different instruction.
From-SVN: r23143
1998-10-16 21:54:38 +02:00
|
|
|
|
{
|
1999-09-12 16:54:56 +02:00
|
|
|
|
rld[i].out = out;
|
|
|
|
|
rld[i].out_reg = outloc ? *outloc : 0;
|
Fix consistency problems with reg_equiv_{mem,address};
Improve reload inheritance;
* reload.c (reload_out_reg): New variable.
(loc_mentioned_in_p, remove_address_replacements): New functions.
(remove_replacements): Deleted.
(push_reload): Set reload_out_reg[i].
When merging, also set reload_{in,out}_reg[i], and remove
duplicate address reloads.
(combine_reloads): Copy reload_out_reg[i].
(find_reloads): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
Include *recog_operand_loc in commutativity operand changes.
Generate optional output reloads.
Delete reference to n_memlocs. Don't set *recog_operand_loc before
processing operands. Call make_memloc in reg_equiv_address code.
Set *recog_operand_loc only after processing operands, and only
if replace is true. Return a value.
When changing address reload types for operands that didn't get
reloaded, use RELOAD_FOR_OPADDR_ADDRESS for
RELOAD_FOR_INPADDR_ADDRESS / RELOAD_FOR_OUTADDR_ADDRESS reloads.
Don't emit USEs for pseudo SUBREGs when not replacing.
(find_reloads_address): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
(find_reloads_toplev): Likewise.
Call make_memloc in reg_equiv_address code.
(debug_reload_to_stream): Add code to output reload_out_reg.
(make_memloc): Delete local variable i, ifdefed out code, and
references to memlocs and n_memlocs.
(memlocs, n_memlocs): Delete.
(push_secondary_reload): Clear reload_out_reg.
(find_reloads_address_1): Provide memrefloc argument to all calls
to find_reloads_address.
In AUTO_INC code, handle non-directly addressable equivalences properly.
* reload.h (reload_out_reg, num_not_at_initial_offset): Declare.
(find_reloads): Add return type.
(remove_address_replacements, deallocate_reload_reg): Declare.
* reload1.c (num_not_at_initial_offset): No longer static.
(delete_address_reloads, delete_address_reloads_1): Likewise.
(deallocate_reload_reg): New function.
(spill_reg_stored_to): New array.
(eliminate_regs): Don't substitute from reg_equiv_memory_loc.
(eliminate_regs_in_insn): Move assignments of previous_offset and
max_offset fields, and recalculation of num_not_at_initial_offset
into new static function:
(update_eliminable_offsets) .
(reload_as_needed): Call update_eliminable_offsetss after calling
find_reloads.
Call forget_old_reloads_1 with contents of reloaded auto_inc
expressions if the actual addressing can't be changed to match the
auto_inc.
(choose_reload_regs): For inheritance, replace
reload_reg_free_before_p test with reload_reg_ions.
(emit_reload_insns): If reload_in is a MEM, set OLD to
reload_in_reg[j].
Don't reload directly from oldequiv; if it's a pseudo with a
stack slot, use reload_in[j].
Check that reload_in_reg[j] is a MEM before replacing reload_in
from reg_reloaded_contents.
Include non-spill registers in reload inheritance processing.
Also try to use reload_out_reg to set spill_reg_store /
reg_last_reload_reg.
In code to set new_spill_reg_store, use single_set to find out if
there is a single set.
Add code that allows to delete optional output reloads.
Add code to allow deletion of output reloads that use no spill reg.
At the end, set reload_override_in to oldequiv.
Also call delete_output_reload if reload_out_reg is equal to old
in oldequiv code.
Add code to call delete_output_reload for stores with no matching load.
Set / use spill_reg_stored_to.
Handle case where secondary output reload uses a temporary, but
actual store isn't found.
When looking for a store of a value not loaded in order to call
delete_output_reload, count_occurences should return 0 for no
loads; but discount inherited input reloadill_reg_stored_to.
Do checks for extra uses of REG. Changed all
callers.
Use delete_address_reloads.
(reload): Take return value of find_reloads into account.
If a no-op set needs more than one reload, delete it.
(reload_reg_free_before_p): RELOAD_FOR_INPUT
can ignore RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS
for the same operand.
(clear_reload_reg_in_use): Check for other reloads that keep a
register in use.
(reload_reg_free_for_value_p): handle RELOAD_FOR_OPERAND_ADDRESS /
RELOAD_FOR_OPADDR_ADDR.
Take into account when an address address reload is only needed
for the address reload we are considering.
(count_occurrences): Use rtx_equal_p for MEMs.
(inc_for_reload): Return instruction that stores into RELOADREG.
New argument two, IN, and rtx. Changed all callers.
(calculate_needs_all_insns, reload_as_needed):
Don't clear after_call for a CLOBBER.
Keep track of how many hard registers need to be copied from
after_call, and don't clear after_call before we have seen
that much copies, or we see a different instruction.
From-SVN: r23143
1998-10-16 21:54:38 +02:00
|
|
|
|
}
|
1999-09-12 16:54:56 +02:00
|
|
|
|
if (reg_class_subset_p (class, rld[i].class))
|
|
|
|
|
rld[i].class = class;
|
|
|
|
|
rld[i].optional &= optional;
|
|
|
|
|
if (MERGE_TO_OTHER (type, rld[i].when_needed,
|
|
|
|
|
opnum, rld[i].opnum))
|
|
|
|
|
rld[i].when_needed = RELOAD_OTHER;
|
|
|
|
|
rld[i].opnum = MIN (rld[i].opnum, opnum);
|
1992-02-28 11:23:25 +01:00
|
|
|
|
}
|
|
|
|
|
|
2001-07-23 15:21:39 +02:00
|
|
|
|
/* If the ostensible rtx being reloaded differs from the rtx found
|
1992-02-28 11:23:25 +01:00
|
|
|
|
in the location to substitute, this reload is not safe to combine
|
|
|
|
|
because we cannot reliably tell whether it appears in the insn. */
|
|
|
|
|
|
|
|
|
|
if (in != 0 && in != *inloc)
|
1999-09-12 16:54:56 +02:00
|
|
|
|
rld[i].nocombine = 1;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
|
|
|
|
#if 0
|
|
|
|
|
/* This was replaced by changes in find_reloads_address_1 and the new
|
|
|
|
|
function inc_for_reload, which go with a new meaning of reload_inc. */
|
|
|
|
|
|
|
|
|
|
/* If this is an IN/OUT reload in an insn that sets the CC,
|
|
|
|
|
it must be for an autoincrement. It doesn't work to store
|
|
|
|
|
the incremented value after the insn because that would clobber the CC.
|
|
|
|
|
So we must do the increment of the value reloaded from,
|
|
|
|
|
increment it, store it back, then decrement again. */
|
|
|
|
|
if (out != 0 && sets_cc0_p (PATTERN (this_insn)))
|
|
|
|
|
{
|
|
|
|
|
out = 0;
|
1999-09-12 16:54:56 +02:00
|
|
|
|
rld[i].out = 0;
|
|
|
|
|
rld[i].inc = find_inc_amount (PATTERN (this_insn), in);
|
1992-02-28 11:23:25 +01:00
|
|
|
|
/* If we did not find a nonzero amount-to-increment-by,
|
|
|
|
|
that contradicts the belief that IN is being incremented
|
|
|
|
|
in an address in this insn. */
|
1999-09-12 16:54:56 +02:00
|
|
|
|
if (rld[i].inc == 0)
|
1992-02-28 11:23:25 +01:00
|
|
|
|
abort ();
|
|
|
|
|
}
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
/* If we will replace IN and OUT with the reload-reg,
|
|
|
|
|
record where they are located so that substitution need
|
|
|
|
|
not do a tree walk. */
|
|
|
|
|
|
|
|
|
|
if (replace_reloads)
|
|
|
|
|
{
|
|
|
|
|
if (inloc != 0)
|
|
|
|
|
{
|
2001-10-11 05:16:15 +02:00
|
|
|
|
struct replacement *r = &replacements[n_replacements++];
|
1992-02-28 11:23:25 +01:00
|
|
|
|
r->what = i;
|
|
|
|
|
r->subreg_loc = in_subreg_loc;
|
|
|
|
|
r->where = inloc;
|
|
|
|
|
r->mode = inmode;
|
|
|
|
|
}
|
|
|
|
|
if (outloc != 0 && outloc != inloc)
|
|
|
|
|
{
|
2001-10-11 05:16:15 +02:00
|
|
|
|
struct replacement *r = &replacements[n_replacements++];
|
1992-02-28 11:23:25 +01:00
|
|
|
|
r->what = i;
|
|
|
|
|
r->where = outloc;
|
|
|
|
|
r->subreg_loc = out_subreg_loc;
|
|
|
|
|
r->mode = outmode;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* If this reload is just being introduced and it has both
|
|
|
|
|
an incoming quantity and an outgoing quantity that are
|
|
|
|
|
supposed to be made to match, see if either one of the two
|
|
|
|
|
can serve as the place to reload into.
|
|
|
|
|
|
1999-09-12 16:54:56 +02:00
|
|
|
|
If one of them is acceptable, set rld[i].reg_rtx
|
1992-02-28 11:23:25 +01:00
|
|
|
|
to that one. */
|
|
|
|
|
|
1999-09-12 16:54:56 +02:00
|
|
|
|
if (in != 0 && out != 0 && in != out && rld[i].reg_rtx == 0)
|
1992-02-28 11:23:25 +01:00
|
|
|
|
{
|
1999-09-12 16:54:56 +02:00
|
|
|
|
rld[i].reg_rtx = find_dummy_reload (in, out, inloc, outloc,
|
|
|
|
|
inmode, outmode,
|
|
|
|
|
rld[i].class, i,
|
|
|
|
|
earlyclobber_operand_p (out));
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
|
|
|
|
/* If the outgoing register already contains the same value
|
|
|
|
|
as the incoming one, we can dispense with loading it.
|
|
|
|
|
The easiest way to tell the caller that is to give a phony
|
|
|
|
|
value for the incoming operand (same as outgoing one). */
|
1999-09-12 16:54:56 +02:00
|
|
|
|
if (rld[i].reg_rtx == out
|
1992-02-28 11:23:25 +01:00
|
|
|
|
&& (GET_CODE (in) == REG || CONSTANT_P (in))
|
|
|
|
|
&& 0 != find_equiv_reg (in, this_insn, 0, REGNO (out),
|
|
|
|
|
static_reload_reg_p, i, inmode))
|
1999-09-12 16:54:56 +02:00
|
|
|
|
rld[i].in = out;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* If this is an input reload and the operand contains a register that
|
|
|
|
|
dies in this insn and is used nowhere else, see if it is the right class
|
|
|
|
|
to be used for this reload. Use it if so. (This occurs most commonly
|
|
|
|
|
in the case of paradoxical SUBREGs and in-out reloads). We cannot do
|
|
|
|
|
this if it is also an output reload that mentions the register unless
|
|
|
|
|
the output is a SUBREG that clobbers an entire register.
|
|
|
|
|
|
|
|
|
|
Note that the operand might be one of the spill regs, if it is a
|
|
|
|
|
pseudo reg and we are in a block where spilling has not taken place.
|
|
|
|
|
But if there is no spilling in this block, that is OK.
|
|
|
|
|
An explicitly used hard reg cannot be a spill reg. */
|
|
|
|
|
|
1999-09-12 16:54:56 +02:00
|
|
|
|
if (rld[i].reg_rtx == 0 && in != 0)
|
1992-02-28 11:23:25 +01:00
|
|
|
|
{
|
|
|
|
|
rtx note;
|
|
|
|
|
int regno;
|
2000-12-19 01:42:31 +01:00
|
|
|
|
enum machine_mode rel_mode = inmode;
|
|
|
|
|
|
|
|
|
|
if (out && GET_MODE_SIZE (outmode) > GET_MODE_SIZE (inmode))
|
|
|
|
|
rel_mode = outmode;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
|
|
|
|
for (note = REG_NOTES (this_insn); note; note = XEXP (note, 1))
|
|
|
|
|
if (REG_NOTE_KIND (note) == REG_DEAD
|
|
|
|
|
&& GET_CODE (XEXP (note, 0)) == REG
|
|
|
|
|
&& (regno = REGNO (XEXP (note, 0))) < FIRST_PSEUDO_REGISTER
|
|
|
|
|
&& reg_mentioned_p (XEXP (note, 0), in)
|
|
|
|
|
&& ! refers_to_regno_for_reload_p (regno,
|
|
|
|
|
(regno
|
|
|
|
|
+ HARD_REGNO_NREGS (regno,
|
2000-12-19 01:42:31 +01:00
|
|
|
|
rel_mode)),
|
1992-02-28 11:23:25 +01:00
|
|
|
|
PATTERN (this_insn), inloc)
|
1993-05-08 00:05:09 +02:00
|
|
|
|
/* If this is also an output reload, IN cannot be used as
|
|
|
|
|
the reload register if it is set in this insn unless IN
|
|
|
|
|
is also OUT. */
|
|
|
|
|
&& (out == 0 || in == out
|
|
|
|
|
|| ! hard_reg_set_here_p (regno,
|
|
|
|
|
(regno
|
|
|
|
|
+ HARD_REGNO_NREGS (regno,
|
2000-12-19 01:42:31 +01:00
|
|
|
|
rel_mode)),
|
1993-05-08 00:05:09 +02:00
|
|
|
|
PATTERN (this_insn)))
|
|
|
|
|
/* ??? Why is this code so different from the previous?
|
|
|
|
|
Is there any simple coherent way to describe the two together?
|
|
|
|
|
What's going on here. */
|
1992-02-28 11:23:25 +01:00
|
|
|
|
&& (in != out
|
|
|
|
|
|| (GET_CODE (in) == SUBREG
|
|
|
|
|
&& (((GET_MODE_SIZE (GET_MODE (in)) + (UNITS_PER_WORD - 1))
|
|
|
|
|
/ UNITS_PER_WORD)
|
|
|
|
|
== ((GET_MODE_SIZE (GET_MODE (SUBREG_REG (in)))
|
|
|
|
|
+ (UNITS_PER_WORD - 1)) / UNITS_PER_WORD))))
|
|
|
|
|
/* Make sure the operand fits in the reg that dies. */
|
2000-12-19 01:42:31 +01:00
|
|
|
|
&& (GET_MODE_SIZE (rel_mode)
|
|
|
|
|
<= GET_MODE_SIZE (GET_MODE (XEXP (note, 0))))
|
1992-02-28 11:23:25 +01:00
|
|
|
|
&& HARD_REGNO_MODE_OK (regno, inmode)
|
1999-11-29 13:09:54 +01:00
|
|
|
|
&& HARD_REGNO_MODE_OK (regno, outmode))
|
1992-02-28 11:23:25 +01:00
|
|
|
|
{
|
2000-07-07 00:26:17 +02:00
|
|
|
|
unsigned int offs;
|
|
|
|
|
unsigned int nregs = MAX (HARD_REGNO_NREGS (regno, inmode),
|
|
|
|
|
HARD_REGNO_NREGS (regno, outmode));
|
|
|
|
|
|
1999-11-29 13:09:54 +01:00
|
|
|
|
for (offs = 0; offs < nregs; offs++)
|
|
|
|
|
if (fixed_regs[regno + offs]
|
|
|
|
|
|| ! TEST_HARD_REG_BIT (reg_class_contents[(int) class],
|
|
|
|
|
regno + offs))
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
if (offs == nregs)
|
|
|
|
|
{
|
2000-12-19 01:42:31 +01:00
|
|
|
|
rld[i].reg_rtx = gen_rtx_REG (rel_mode, regno);
|
1999-11-29 13:09:54 +01:00
|
|
|
|
break;
|
|
|
|
|
}
|
1992-02-28 11:23:25 +01:00
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (out)
|
|
|
|
|
output_reloadnum = i;
|
|
|
|
|
|
|
|
|
|
return i;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Record an additional place we must replace a value
|
|
|
|
|
for which we have already recorded a reload.
|
|
|
|
|
RELOADNUM is the value returned by push_reload
|
|
|
|
|
when the reload was recorded.
|
|
|
|
|
This is used in insn patterns that use match_dup. */
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
push_replacement (loc, reloadnum, mode)
|
|
|
|
|
rtx *loc;
|
|
|
|
|
int reloadnum;
|
|
|
|
|
enum machine_mode mode;
|
|
|
|
|
{
|
|
|
|
|
if (replace_reloads)
|
|
|
|
|
{
|
2001-10-11 05:16:15 +02:00
|
|
|
|
struct replacement *r = &replacements[n_replacements++];
|
1992-02-28 11:23:25 +01:00
|
|
|
|
r->what = reloadnum;
|
|
|
|
|
r->where = loc;
|
|
|
|
|
r->subreg_loc = 0;
|
|
|
|
|
r->mode = mode;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
1993-03-29 13:27:52 +02:00
|
|
|
|
/* Transfer all replacements that used to be in reload FROM to be in
|
|
|
|
|
reload TO. */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
transfer_replacements (to, from)
|
|
|
|
|
int to, from;
|
|
|
|
|
{
|
|
|
|
|
int i;
|
|
|
|
|
|
|
|
|
|
for (i = 0; i < n_replacements; i++)
|
|
|
|
|
if (replacements[i].what == from)
|
|
|
|
|
replacements[i].what = to;
|
|
|
|
|
}
|
|
|
|
|
|
Fix consistency problems with reg_equiv_{mem,address};
Improve reload inheritance;
* reload.c (reload_out_reg): New variable.
(loc_mentioned_in_p, remove_address_replacements): New functions.
(remove_replacements): Deleted.
(push_reload): Set reload_out_reg[i].
When merging, also set reload_{in,out}_reg[i], and remove
duplicate address reloads.
(combine_reloads): Copy reload_out_reg[i].
(find_reloads): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
Include *recog_operand_loc in commutativity operand changes.
Generate optional output reloads.
Delete reference to n_memlocs. Don't set *recog_operand_loc before
processing operands. Call make_memloc in reg_equiv_address code.
Set *recog_operand_loc only after processing operands, and only
if replace is true. Return a value.
When changing address reload types for operands that didn't get
reloaded, use RELOAD_FOR_OPADDR_ADDRESS for
RELOAD_FOR_INPADDR_ADDRESS / RELOAD_FOR_OUTADDR_ADDRESS reloads.
Don't emit USEs for pseudo SUBREGs when not replacing.
(find_reloads_address): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
(find_reloads_toplev): Likewise.
Call make_memloc in reg_equiv_address code.
(debug_reload_to_stream): Add code to output reload_out_reg.
(make_memloc): Delete local variable i, ifdefed out code, and
references to memlocs and n_memlocs.
(memlocs, n_memlocs): Delete.
(push_secondary_reload): Clear reload_out_reg.
(find_reloads_address_1): Provide memrefloc argument to all calls
to find_reloads_address.
In AUTO_INC code, handle non-directly addressable equivalences properly.
* reload.h (reload_out_reg, num_not_at_initial_offset): Declare.
(find_reloads): Add return type.
(remove_address_replacements, deallocate_reload_reg): Declare.
* reload1.c (num_not_at_initial_offset): No longer static.
(delete_address_reloads, delete_address_reloads_1): Likewise.
(deallocate_reload_reg): New function.
(spill_reg_stored_to): New array.
(eliminate_regs): Don't substitute from reg_equiv_memory_loc.
(eliminate_regs_in_insn): Move assignments of previous_offset and
max_offset fields, and recalculation of num_not_at_initial_offset
into new static function:
(update_eliminable_offsets) .
(reload_as_needed): Call update_eliminable_offsetss after calling
find_reloads.
Call forget_old_reloads_1 with contents of reloaded auto_inc
expressions if the actual addressing can't be changed to match the
auto_inc.
(choose_reload_regs): For inheritance, replace
reload_reg_free_before_p test with reload_reg_ions.
(emit_reload_insns): If reload_in is a MEM, set OLD to
reload_in_reg[j].
Don't reload directly from oldequiv; if it's a pseudo with a
stack slot, use reload_in[j].
Check that reload_in_reg[j] is a MEM before replacing reload_in
from reg_reloaded_contents.
Include non-spill registers in reload inheritance processing.
Also try to use reload_out_reg to set spill_reg_store /
reg_last_reload_reg.
In code to set new_spill_reg_store, use single_set to find out if
there is a single set.
Add code that allows to delete optional output reloads.
Add code to allow deletion of output reloads that use no spill reg.
At the end, set reload_override_in to oldequiv.
Also call delete_output_reload if reload_out_reg is equal to old
in oldequiv code.
Add code to call delete_output_reload for stores with no matching load.
Set / use spill_reg_stored_to.
Handle case where secondary output reload uses a temporary, but
actual store isn't found.
When looking for a store of a value not loaded in order to call
delete_output_reload, count_occurences should return 0 for no
loads; but discount inherited input reloadill_reg_stored_to.
Do checks for extra uses of REG. Changed all
callers.
Use delete_address_reloads.
(reload): Take return value of find_reloads into account.
If a no-op set needs more than one reload, delete it.
(reload_reg_free_before_p): RELOAD_FOR_INPUT
can ignore RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS
for the same operand.
(clear_reload_reg_in_use): Check for other reloads that keep a
register in use.
(reload_reg_free_for_value_p): handle RELOAD_FOR_OPERAND_ADDRESS /
RELOAD_FOR_OPADDR_ADDR.
Take into account when an address address reload is only needed
for the address reload we are considering.
(count_occurrences): Use rtx_equal_p for MEMs.
(inc_for_reload): Return instruction that stores into RELOADREG.
New argument two, IN, and rtx. Changed all callers.
(calculate_needs_all_insns, reload_as_needed):
Don't clear after_call for a CLOBBER.
Keep track of how many hard registers need to be copied from
after_call, and don't clear after_call before we have seen
that much copies, or we see a different instruction.
From-SVN: r23143
1998-10-16 21:54:38 +02:00
|
|
|
|
/* IN_RTX is the value loaded by a reload that we now decided to inherit,
|
|
|
|
|
or a subpart of it. If we have any replacements registered for IN_RTX,
|
|
|
|
|
cancel the reloads that were supposed to load them.
|
|
|
|
|
Return non-zero if we canceled any reloads. */
|
|
|
|
|
int
|
|
|
|
|
remove_address_replacements (in_rtx)
|
|
|
|
|
rtx in_rtx;
|
1998-05-14 02:44:02 +02:00
|
|
|
|
{
|
|
|
|
|
int i, j;
|
Fix consistency problems with reg_equiv_{mem,address};
Improve reload inheritance;
* reload.c (reload_out_reg): New variable.
(loc_mentioned_in_p, remove_address_replacements): New functions.
(remove_replacements): Deleted.
(push_reload): Set reload_out_reg[i].
When merging, also set reload_{in,out}_reg[i], and remove
duplicate address reloads.
(combine_reloads): Copy reload_out_reg[i].
(find_reloads): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
Include *recog_operand_loc in commutativity operand changes.
Generate optional output reloads.
Delete reference to n_memlocs. Don't set *recog_operand_loc before
processing operands. Call make_memloc in reg_equiv_address code.
Set *recog_operand_loc only after processing operands, and only
if replace is true. Return a value.
When changing address reload types for operands that didn't get
reloaded, use RELOAD_FOR_OPADDR_ADDRESS for
RELOAD_FOR_INPADDR_ADDRESS / RELOAD_FOR_OUTADDR_ADDRESS reloads.
Don't emit USEs for pseudo SUBREGs when not replacing.
(find_reloads_address): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
(find_reloads_toplev): Likewise.
Call make_memloc in reg_equiv_address code.
(debug_reload_to_stream): Add code to output reload_out_reg.
(make_memloc): Delete local variable i, ifdefed out code, and
references to memlocs and n_memlocs.
(memlocs, n_memlocs): Delete.
(push_secondary_reload): Clear reload_out_reg.
(find_reloads_address_1): Provide memrefloc argument to all calls
to find_reloads_address.
In AUTO_INC code, handle non-directly addressable equivalences properly.
* reload.h (reload_out_reg, num_not_at_initial_offset): Declare.
(find_reloads): Add return type.
(remove_address_replacements, deallocate_reload_reg): Declare.
* reload1.c (num_not_at_initial_offset): No longer static.
(delete_address_reloads, delete_address_reloads_1): Likewise.
(deallocate_reload_reg): New function.
(spill_reg_stored_to): New array.
(eliminate_regs): Don't substitute from reg_equiv_memory_loc.
(eliminate_regs_in_insn): Move assignments of previous_offset and
max_offset fields, and recalculation of num_not_at_initial_offset
into new static function:
(update_eliminable_offsets) .
(reload_as_needed): Call update_eliminable_offsetss after calling
find_reloads.
Call forget_old_reloads_1 with contents of reloaded auto_inc
expressions if the actual addressing can't be changed to match the
auto_inc.
(choose_reload_regs): For inheritance, replace
reload_reg_free_before_p test with reload_reg_ions.
(emit_reload_insns): If reload_in is a MEM, set OLD to
reload_in_reg[j].
Don't reload directly from oldequiv; if it's a pseudo with a
stack slot, use reload_in[j].
Check that reload_in_reg[j] is a MEM before replacing reload_in
from reg_reloaded_contents.
Include non-spill registers in reload inheritance processing.
Also try to use reload_out_reg to set spill_reg_store /
reg_last_reload_reg.
In code to set new_spill_reg_store, use single_set to find out if
there is a single set.
Add code that allows to delete optional output reloads.
Add code to allow deletion of output reloads that use no spill reg.
At the end, set reload_override_in to oldequiv.
Also call delete_output_reload if reload_out_reg is equal to old
in oldequiv code.
Add code to call delete_output_reload for stores with no matching load.
Set / use spill_reg_stored_to.
Handle case where secondary output reload uses a temporary, but
actual store isn't found.
When looking for a store of a value not loaded in order to call
delete_output_reload, count_occurences should return 0 for no
loads; but discount inherited input reloadill_reg_stored_to.
Do checks for extra uses of REG. Changed all
callers.
Use delete_address_reloads.
(reload): Take return value of find_reloads into account.
If a no-op set needs more than one reload, delete it.
(reload_reg_free_before_p): RELOAD_FOR_INPUT
can ignore RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS
for the same operand.
(clear_reload_reg_in_use): Check for other reloads that keep a
register in use.
(reload_reg_free_for_value_p): handle RELOAD_FOR_OPERAND_ADDRESS /
RELOAD_FOR_OPADDR_ADDR.
Take into account when an address address reload is only needed
for the address reload we are considering.
(count_occurrences): Use rtx_equal_p for MEMs.
(inc_for_reload): Return instruction that stores into RELOADREG.
New argument two, IN, and rtx. Changed all callers.
(calculate_needs_all_insns, reload_as_needed):
Don't clear after_call for a CLOBBER.
Keep track of how many hard registers need to be copied from
after_call, and don't clear after_call before we have seen
that much copies, or we see a different instruction.
From-SVN: r23143
1998-10-16 21:54:38 +02:00
|
|
|
|
char reload_flags[MAX_RELOADS];
|
|
|
|
|
int something_changed = 0;
|
1998-05-14 02:44:02 +02:00
|
|
|
|
|
alias.c [...] (init_alias_analysis, [...]): Use memset () instead of bzero ().
* alias.c (init_alias_analysis), calls.c (expand_call,
emit_library_call_value_1), combine.c (init_reg_last_arrays),
cse.c (new_basic_block), dbxout.c (dbxout_type), diagnostic.c
(init_output_buffer, set_diagnostic_context), dwarf2out.c
(equate_decl_number_to_die, build_abbrev_table), emit-rtl.c
(init_emit_once), fold-const.c (mul_double, div_and_round_double),
function.c (assign_parms), gcse.c (compute_can_copy,
alloc_gcse_mem, alloc_reg_set_mem, record_one_set,
compute_hash_table, compute_set_hash_table,
compute_expr_hash_table), genattrtab.c (optimize_attrs), global.c
(global_alloc, global_conflicts), haifa-sched.c (compute_trg_info,
clear_units, schedule_block), integrate.c (initialize_for_inline,
expand_inline_function), jump.c (thread_jumps), local-alloc.c
(local_alloc), loop.c (combine_movables, count_loop_regs_set,
load_mems_and_recount_loop_regs_set), print-tree.c (debug_tree),
regclass.c (init_reg_sets, init_reg_sets_1, regclass,
record_reg_classes, allocate_reg_info), reload.c
(get_secondary_mem, remove_address_replacements, find_reloads),
reload1.c (reload, set_initial_label_offsets, finish_spills,
reload_as_needed, choose_reload_regs_init,
reload_cse_simplify_operands), reorg.c (dbr_schedule), sbitmap.c
(sbitmap_zero), simplify-rtx.c (simplify_plus_minus), ssa.c
(rename_registers), stmt.c (expand_end_case), unroll.c
(unroll_loop), varray.c (varray_grow), objc/objc-act.c: Use memset
() instead of bzero ().
ch:
* actions.c (check_missing_cases), typeck.c (build_chill_slice,
build_chill_cast): Use memset () instead of bzero ().
cp:
* class.c (duplicate_tag_error, build_vtbl_initializer), decl.c
(push_binding_level), error.c (cp_tree_printer), pt.c
(process_partial_specialization, tsubst_template_arg_vector),
search.c (lookup_member): Use memset () instead of bzero ().
java:
* expr.c (note_instructions), jcf-io.c (find_class), jcf-parse.c
(init_outgoing_cpool), lex.c (java_init_lex): Use memset ()
instead of bzero ().
From-SVN: r37303
2000-11-07 23:50:06 +01:00
|
|
|
|
memset (reload_flags, 0, sizeof reload_flags);
|
1998-05-14 02:44:02 +02:00
|
|
|
|
for (i = 0, j = 0; i < n_replacements; i++)
|
|
|
|
|
{
|
Fix consistency problems with reg_equiv_{mem,address};
Improve reload inheritance;
* reload.c (reload_out_reg): New variable.
(loc_mentioned_in_p, remove_address_replacements): New functions.
(remove_replacements): Deleted.
(push_reload): Set reload_out_reg[i].
When merging, also set reload_{in,out}_reg[i], and remove
duplicate address reloads.
(combine_reloads): Copy reload_out_reg[i].
(find_reloads): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
Include *recog_operand_loc in commutativity operand changes.
Generate optional output reloads.
Delete reference to n_memlocs. Don't set *recog_operand_loc before
processing operands. Call make_memloc in reg_equiv_address code.
Set *recog_operand_loc only after processing operands, and only
if replace is true. Return a value.
When changing address reload types for operands that didn't get
reloaded, use RELOAD_FOR_OPADDR_ADDRESS for
RELOAD_FOR_INPADDR_ADDRESS / RELOAD_FOR_OUTADDR_ADDRESS reloads.
Don't emit USEs for pseudo SUBREGs when not replacing.
(find_reloads_address): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
(find_reloads_toplev): Likewise.
Call make_memloc in reg_equiv_address code.
(debug_reload_to_stream): Add code to output reload_out_reg.
(make_memloc): Delete local variable i, ifdefed out code, and
references to memlocs and n_memlocs.
(memlocs, n_memlocs): Delete.
(push_secondary_reload): Clear reload_out_reg.
(find_reloads_address_1): Provide memrefloc argument to all calls
to find_reloads_address.
In AUTO_INC code, handle non-directly addressable equivalences properly.
* reload.h (reload_out_reg, num_not_at_initial_offset): Declare.
(find_reloads): Add return type.
(remove_address_replacements, deallocate_reload_reg): Declare.
* reload1.c (num_not_at_initial_offset): No longer static.
(delete_address_reloads, delete_address_reloads_1): Likewise.
(deallocate_reload_reg): New function.
(spill_reg_stored_to): New array.
(eliminate_regs): Don't substitute from reg_equiv_memory_loc.
(eliminate_regs_in_insn): Move assignments of previous_offset and
max_offset fields, and recalculation of num_not_at_initial_offset
into new static function:
(update_eliminable_offsets) .
(reload_as_needed): Call update_eliminable_offsetss after calling
find_reloads.
Call forget_old_reloads_1 with contents of reloaded auto_inc
expressions if the actual addressing can't be changed to match the
auto_inc.
(choose_reload_regs): For inheritance, replace
reload_reg_free_before_p test with reload_reg_ions.
(emit_reload_insns): If reload_in is a MEM, set OLD to
reload_in_reg[j].
Don't reload directly from oldequiv; if it's a pseudo with a
stack slot, use reload_in[j].
Check that reload_in_reg[j] is a MEM before replacing reload_in
from reg_reloaded_contents.
Include non-spill registers in reload inheritance processing.
Also try to use reload_out_reg to set spill_reg_store /
reg_last_reload_reg.
In code to set new_spill_reg_store, use single_set to find out if
there is a single set.
Add code that allows to delete optional output reloads.
Add code to allow deletion of output reloads that use no spill reg.
At the end, set reload_override_in to oldequiv.
Also call delete_output_reload if reload_out_reg is equal to old
in oldequiv code.
Add code to call delete_output_reload for stores with no matching load.
Set / use spill_reg_stored_to.
Handle case where secondary output reload uses a temporary, but
actual store isn't found.
When looking for a store of a value not loaded in order to call
delete_output_reload, count_occurences should return 0 for no
loads; but discount inherited input reloadill_reg_stored_to.
Do checks for extra uses of REG. Changed all
callers.
Use delete_address_reloads.
(reload): Take return value of find_reloads into account.
If a no-op set needs more than one reload, delete it.
(reload_reg_free_before_p): RELOAD_FOR_INPUT
can ignore RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS
for the same operand.
(clear_reload_reg_in_use): Check for other reloads that keep a
register in use.
(reload_reg_free_for_value_p): handle RELOAD_FOR_OPERAND_ADDRESS /
RELOAD_FOR_OPADDR_ADDR.
Take into account when an address address reload is only needed
for the address reload we are considering.
(count_occurrences): Use rtx_equal_p for MEMs.
(inc_for_reload): Return instruction that stores into RELOADREG.
New argument two, IN, and rtx. Changed all callers.
(calculate_needs_all_insns, reload_as_needed):
Don't clear after_call for a CLOBBER.
Keep track of how many hard registers need to be copied from
after_call, and don't clear after_call before we have seen
that much copies, or we see a different instruction.
From-SVN: r23143
1998-10-16 21:54:38 +02:00
|
|
|
|
if (loc_mentioned_in_p (replacements[i].where, in_rtx))
|
|
|
|
|
reload_flags[replacements[i].what] |= 1;
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
replacements[j++] = replacements[i];
|
|
|
|
|
reload_flags[replacements[i].what] |= 2;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
/* Note that the following store must be done before the recursive calls. */
|
|
|
|
|
n_replacements = j;
|
|
|
|
|
|
|
|
|
|
for (i = n_reloads - 1; i >= 0; i--)
|
|
|
|
|
{
|
|
|
|
|
if (reload_flags[i] == 1)
|
|
|
|
|
{
|
|
|
|
|
deallocate_reload_reg (i);
|
1999-09-12 16:54:56 +02:00
|
|
|
|
remove_address_replacements (rld[i].in);
|
|
|
|
|
rld[i].in = 0;
|
Fix consistency problems with reg_equiv_{mem,address};
Improve reload inheritance;
* reload.c (reload_out_reg): New variable.
(loc_mentioned_in_p, remove_address_replacements): New functions.
(remove_replacements): Deleted.
(push_reload): Set reload_out_reg[i].
When merging, also set reload_{in,out}_reg[i], and remove
duplicate address reloads.
(combine_reloads): Copy reload_out_reg[i].
(find_reloads): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
Include *recog_operand_loc in commutativity operand changes.
Generate optional output reloads.
Delete reference to n_memlocs. Don't set *recog_operand_loc before
processing operands. Call make_memloc in reg_equiv_address code.
Set *recog_operand_loc only after processing operands, and only
if replace is true. Return a value.
When changing address reload types for operands that didn't get
reloaded, use RELOAD_FOR_OPADDR_ADDRESS for
RELOAD_FOR_INPADDR_ADDRESS / RELOAD_FOR_OUTADDR_ADDRESS reloads.
Don't emit USEs for pseudo SUBREGs when not replacing.
(find_reloads_address): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
(find_reloads_toplev): Likewise.
Call make_memloc in reg_equiv_address code.
(debug_reload_to_stream): Add code to output reload_out_reg.
(make_memloc): Delete local variable i, ifdefed out code, and
references to memlocs and n_memlocs.
(memlocs, n_memlocs): Delete.
(push_secondary_reload): Clear reload_out_reg.
(find_reloads_address_1): Provide memrefloc argument to all calls
to find_reloads_address.
In AUTO_INC code, handle non-directly addressable equivalences properly.
* reload.h (reload_out_reg, num_not_at_initial_offset): Declare.
(find_reloads): Add return type.
(remove_address_replacements, deallocate_reload_reg): Declare.
* reload1.c (num_not_at_initial_offset): No longer static.
(delete_address_reloads, delete_address_reloads_1): Likewise.
(deallocate_reload_reg): New function.
(spill_reg_stored_to): New array.
(eliminate_regs): Don't substitute from reg_equiv_memory_loc.
(eliminate_regs_in_insn): Move assignments of previous_offset and
max_offset fields, and recalculation of num_not_at_initial_offset
into new static function:
(update_eliminable_offsets) .
(reload_as_needed): Call update_eliminable_offsetss after calling
find_reloads.
Call forget_old_reloads_1 with contents of reloaded auto_inc
expressions if the actual addressing can't be changed to match the
auto_inc.
(choose_reload_regs): For inheritance, replace
reload_reg_free_before_p test with reload_reg_ions.
(emit_reload_insns): If reload_in is a MEM, set OLD to
reload_in_reg[j].
Don't reload directly from oldequiv; if it's a pseudo with a
stack slot, use reload_in[j].
Check that reload_in_reg[j] is a MEM before replacing reload_in
from reg_reloaded_contents.
Include non-spill registers in reload inheritance processing.
Also try to use reload_out_reg to set spill_reg_store /
reg_last_reload_reg.
In code to set new_spill_reg_store, use single_set to find out if
there is a single set.
Add code that allows to delete optional output reloads.
Add code to allow deletion of output reloads that use no spill reg.
At the end, set reload_override_in to oldequiv.
Also call delete_output_reload if reload_out_reg is equal to old
in oldequiv code.
Add code to call delete_output_reload for stores with no matching load.
Set / use spill_reg_stored_to.
Handle case where secondary output reload uses a temporary, but
actual store isn't found.
When looking for a store of a value not loaded in order to call
delete_output_reload, count_occurences should return 0 for no
loads; but discount inherited input reloadill_reg_stored_to.
Do checks for extra uses of REG. Changed all
callers.
Use delete_address_reloads.
(reload): Take return value of find_reloads into account.
If a no-op set needs more than one reload, delete it.
(reload_reg_free_before_p): RELOAD_FOR_INPUT
can ignore RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS
for the same operand.
(clear_reload_reg_in_use): Check for other reloads that keep a
register in use.
(reload_reg_free_for_value_p): handle RELOAD_FOR_OPERAND_ADDRESS /
RELOAD_FOR_OPADDR_ADDR.
Take into account when an address address reload is only needed
for the address reload we are considering.
(count_occurrences): Use rtx_equal_p for MEMs.
(inc_for_reload): Return instruction that stores into RELOADREG.
New argument two, IN, and rtx. Changed all callers.
(calculate_needs_all_insns, reload_as_needed):
Don't clear after_call for a CLOBBER.
Keep track of how many hard registers need to be copied from
after_call, and don't clear after_call before we have seen
that much copies, or we see a different instruction.
From-SVN: r23143
1998-10-16 21:54:38 +02:00
|
|
|
|
something_changed = 1;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
return something_changed;
|
|
|
|
|
}
|
1998-05-14 02:44:02 +02:00
|
|
|
|
|
1992-02-28 11:23:25 +01:00
|
|
|
|
/* If there is only one output reload, and it is not for an earlyclobber
|
|
|
|
|
operand, try to combine it with a (logically unrelated) input reload
|
|
|
|
|
to reduce the number of reload registers needed.
|
|
|
|
|
|
|
|
|
|
This is safe if the input reload does not appear in
|
|
|
|
|
the value being output-reloaded, because this implies
|
|
|
|
|
it is not needed any more once the original insn completes.
|
|
|
|
|
|
|
|
|
|
If that doesn't work, see we can use any of the registers that
|
|
|
|
|
die in this insn as a reload register. We can if it is of the right
|
|
|
|
|
class and does not appear in the value being output-reloaded. */
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
combine_reloads ()
|
|
|
|
|
{
|
|
|
|
|
int i;
|
|
|
|
|
int output_reload = -1;
|
1994-12-01 00:04:48 +01:00
|
|
|
|
int secondary_out = -1;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
rtx note;
|
|
|
|
|
|
|
|
|
|
/* Find the output reload; return unless there is exactly one
|
|
|
|
|
and that one is mandatory. */
|
|
|
|
|
|
|
|
|
|
for (i = 0; i < n_reloads; i++)
|
1999-09-12 16:54:56 +02:00
|
|
|
|
if (rld[i].out != 0)
|
1992-02-28 11:23:25 +01:00
|
|
|
|
{
|
|
|
|
|
if (output_reload >= 0)
|
|
|
|
|
return;
|
|
|
|
|
output_reload = i;
|
|
|
|
|
}
|
|
|
|
|
|
1999-09-12 16:54:56 +02:00
|
|
|
|
if (output_reload < 0 || rld[output_reload].optional)
|
1992-02-28 11:23:25 +01:00
|
|
|
|
return;
|
|
|
|
|
|
|
|
|
|
/* An input-output reload isn't combinable. */
|
|
|
|
|
|
1999-09-12 16:54:56 +02:00
|
|
|
|
if (rld[output_reload].in != 0)
|
1992-02-28 11:23:25 +01:00
|
|
|
|
return;
|
|
|
|
|
|
1992-05-07 08:41:23 +02:00
|
|
|
|
/* If this reload is for an earlyclobber operand, we can't do anything. */
|
1999-09-12 16:54:56 +02:00
|
|
|
|
if (earlyclobber_operand_p (rld[output_reload].out))
|
1993-09-18 13:57:54 +02:00
|
|
|
|
return;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
2001-11-03 16:56:17 +01:00
|
|
|
|
/* If there is a reload for part of the address of this operand, we would
|
|
|
|
|
need to chnage it to RELOAD_FOR_OTHER_ADDRESS. But that would extend
|
|
|
|
|
its life to the point where doing this combine would not lower the
|
|
|
|
|
number of spill registers needed. */
|
|
|
|
|
for (i = 0; i < n_reloads; i++)
|
|
|
|
|
if ((rld[i].when_needed == RELOAD_FOR_OUTPUT_ADDRESS
|
|
|
|
|
|| rld[i].when_needed == RELOAD_FOR_OUTADDR_ADDRESS)
|
|
|
|
|
&& rld[i].opnum == rld[output_reload].opnum)
|
|
|
|
|
return;
|
|
|
|
|
|
1992-02-28 11:23:25 +01:00
|
|
|
|
/* Check each input reload; can we combine it? */
|
|
|
|
|
|
|
|
|
|
for (i = 0; i < n_reloads; i++)
|
1999-09-12 16:54:56 +02:00
|
|
|
|
if (rld[i].in && ! rld[i].optional && ! rld[i].nocombine
|
1992-02-28 11:23:25 +01:00
|
|
|
|
/* Life span of this reload must not extend past main insn. */
|
1999-09-12 16:54:56 +02:00
|
|
|
|
&& rld[i].when_needed != RELOAD_FOR_OUTPUT_ADDRESS
|
|
|
|
|
&& rld[i].when_needed != RELOAD_FOR_OUTADDR_ADDRESS
|
|
|
|
|
&& rld[i].when_needed != RELOAD_OTHER
|
|
|
|
|
&& (CLASS_MAX_NREGS (rld[i].class, rld[i].inmode)
|
|
|
|
|
== CLASS_MAX_NREGS (rld[output_reload].class,
|
|
|
|
|
rld[output_reload].outmode))
|
|
|
|
|
&& rld[i].inc == 0
|
|
|
|
|
&& rld[i].reg_rtx == 0
|
1993-03-29 13:27:52 +02:00
|
|
|
|
#ifdef SECONDARY_MEMORY_NEEDED
|
1994-02-10 15:04:07 +01:00
|
|
|
|
/* Don't combine two reloads with different secondary
|
|
|
|
|
memory locations. */
|
1999-09-12 16:54:56 +02:00
|
|
|
|
&& (secondary_memlocs_elim[(int) rld[output_reload].outmode][rld[i].opnum] == 0
|
|
|
|
|
|| secondary_memlocs_elim[(int) rld[output_reload].outmode][rld[output_reload].opnum] == 0
|
|
|
|
|
|| rtx_equal_p (secondary_memlocs_elim[(int) rld[output_reload].outmode][rld[i].opnum],
|
|
|
|
|
secondary_memlocs_elim[(int) rld[output_reload].outmode][rld[output_reload].opnum]))
|
1993-03-29 13:27:52 +02:00
|
|
|
|
#endif
|
1997-11-02 22:19:36 +01:00
|
|
|
|
&& (SMALL_REGISTER_CLASSES
|
1999-09-12 16:54:56 +02:00
|
|
|
|
? (rld[i].class == rld[output_reload].class)
|
|
|
|
|
: (reg_class_subset_p (rld[i].class,
|
|
|
|
|
rld[output_reload].class)
|
|
|
|
|
|| reg_class_subset_p (rld[output_reload].class,
|
|
|
|
|
rld[i].class)))
|
|
|
|
|
&& (MATCHES (rld[i].in, rld[output_reload].out)
|
1992-02-28 11:23:25 +01:00
|
|
|
|
/* Args reversed because the first arg seems to be
|
|
|
|
|
the one that we imagine being modified
|
|
|
|
|
while the second is the one that might be affected. */
|
1999-09-12 16:54:56 +02:00
|
|
|
|
|| (! reg_overlap_mentioned_for_reload_p (rld[output_reload].out,
|
|
|
|
|
rld[i].in)
|
1992-02-28 11:23:25 +01:00
|
|
|
|
/* However, if the input is a register that appears inside
|
|
|
|
|
the output, then we also can't share.
|
|
|
|
|
Imagine (set (mem (reg 69)) (plus (reg 69) ...)).
|
|
|
|
|
If the same reload reg is used for both reg 69 and the
|
|
|
|
|
result to be stored in memory, then that result
|
|
|
|
|
will clobber the address of the memory ref. */
|
1999-09-12 16:54:56 +02:00
|
|
|
|
&& ! (GET_CODE (rld[i].in) == REG
|
|
|
|
|
&& reg_overlap_mentioned_for_reload_p (rld[i].in,
|
|
|
|
|
rld[output_reload].out))))
|
2000-08-21 15:46:47 +02:00
|
|
|
|
&& ! reload_inner_reg_of_subreg (rld[i].in, rld[i].inmode)
|
1999-09-12 16:54:56 +02:00
|
|
|
|
&& (reg_class_size[(int) rld[i].class]
|
1997-11-02 22:19:36 +01:00
|
|
|
|
|| SMALL_REGISTER_CLASSES)
|
1993-03-29 13:27:52 +02:00
|
|
|
|
/* We will allow making things slightly worse by combining an
|
|
|
|
|
input and an output, but no worse than that. */
|
1999-09-12 16:54:56 +02:00
|
|
|
|
&& (rld[i].when_needed == RELOAD_FOR_INPUT
|
|
|
|
|
|| rld[i].when_needed == RELOAD_FOR_OUTPUT))
|
1992-02-28 11:23:25 +01:00
|
|
|
|
{
|
|
|
|
|
int j;
|
|
|
|
|
|
|
|
|
|
/* We have found a reload to combine with! */
|
1999-09-12 16:54:56 +02:00
|
|
|
|
rld[i].out = rld[output_reload].out;
|
|
|
|
|
rld[i].out_reg = rld[output_reload].out_reg;
|
|
|
|
|
rld[i].outmode = rld[output_reload].outmode;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
/* Mark the old output reload as inoperative. */
|
1999-09-12 16:54:56 +02:00
|
|
|
|
rld[output_reload].out = 0;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
/* The combined reload is needed for the entire insn. */
|
1999-09-12 16:54:56 +02:00
|
|
|
|
rld[i].when_needed = RELOAD_OTHER;
|
1996-07-04 00:07:53 +02:00
|
|
|
|
/* If the output reload had a secondary reload, copy it. */
|
1999-09-12 16:54:56 +02:00
|
|
|
|
if (rld[output_reload].secondary_out_reload != -1)
|
1994-02-10 15:04:07 +01:00
|
|
|
|
{
|
1999-09-12 16:54:56 +02:00
|
|
|
|
rld[i].secondary_out_reload
|
|
|
|
|
= rld[output_reload].secondary_out_reload;
|
|
|
|
|
rld[i].secondary_out_icode
|
|
|
|
|
= rld[output_reload].secondary_out_icode;
|
1994-02-10 15:04:07 +01:00
|
|
|
|
}
|
|
|
|
|
|
1993-03-29 13:27:52 +02:00
|
|
|
|
#ifdef SECONDARY_MEMORY_NEEDED
|
|
|
|
|
/* Copy any secondary MEM. */
|
1999-09-12 16:54:56 +02:00
|
|
|
|
if (secondary_memlocs_elim[(int) rld[output_reload].outmode][rld[output_reload].opnum] != 0)
|
|
|
|
|
secondary_memlocs_elim[(int) rld[output_reload].outmode][rld[i].opnum]
|
|
|
|
|
= secondary_memlocs_elim[(int) rld[output_reload].outmode][rld[output_reload].opnum];
|
1993-03-29 13:27:52 +02:00
|
|
|
|
#endif
|
1996-07-04 00:07:53 +02:00
|
|
|
|
/* If required, minimize the register class. */
|
1999-09-12 16:54:56 +02:00
|
|
|
|
if (reg_class_subset_p (rld[output_reload].class,
|
|
|
|
|
rld[i].class))
|
|
|
|
|
rld[i].class = rld[output_reload].class;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
|
|
|
|
/* Transfer all replacements from the old reload to the combined. */
|
|
|
|
|
for (j = 0; j < n_replacements; j++)
|
|
|
|
|
if (replacements[j].what == output_reload)
|
|
|
|
|
replacements[j].what = i;
|
|
|
|
|
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* If this insn has only one operand that is modified or written (assumed
|
|
|
|
|
to be the first), it must be the one corresponding to this reload. It
|
|
|
|
|
is safe to use anything that dies in this insn for that output provided
|
|
|
|
|
that it does not occur in the output (we already know it isn't an
|
|
|
|
|
earlyclobber. If this is an asm insn, give up. */
|
|
|
|
|
|
1999-12-19 02:19:33 +01:00
|
|
|
|
if (INSN_CODE (this_insn) == -1)
|
1992-02-28 11:23:25 +01:00
|
|
|
|
return;
|
|
|
|
|
|
1999-09-12 14:46:08 +02:00
|
|
|
|
for (i = 1; i < insn_data[INSN_CODE (this_insn)].n_operands; i++)
|
|
|
|
|
if (insn_data[INSN_CODE (this_insn)].operand[i].constraint[0] == '='
|
|
|
|
|
|| insn_data[INSN_CODE (this_insn)].operand[i].constraint[0] == '+')
|
1992-02-28 11:23:25 +01:00
|
|
|
|
return;
|
|
|
|
|
|
|
|
|
|
/* See if some hard register that dies in this insn and is not used in
|
|
|
|
|
the output is the right class. Only works if the register we pick
|
|
|
|
|
up can fully hold our output reload. */
|
|
|
|
|
for (note = REG_NOTES (this_insn); note; note = XEXP (note, 1))
|
|
|
|
|
if (REG_NOTE_KIND (note) == REG_DEAD
|
|
|
|
|
&& GET_CODE (XEXP (note, 0)) == REG
|
1992-05-12 04:51:59 +02:00
|
|
|
|
&& ! reg_overlap_mentioned_for_reload_p (XEXP (note, 0),
|
1999-09-12 16:54:56 +02:00
|
|
|
|
rld[output_reload].out)
|
1992-02-28 11:23:25 +01:00
|
|
|
|
&& REGNO (XEXP (note, 0)) < FIRST_PSEUDO_REGISTER
|
1999-09-12 16:54:56 +02:00
|
|
|
|
&& HARD_REGNO_MODE_OK (REGNO (XEXP (note, 0)), rld[output_reload].outmode)
|
|
|
|
|
&& TEST_HARD_REG_BIT (reg_class_contents[(int) rld[output_reload].class],
|
1992-02-28 11:23:25 +01:00
|
|
|
|
REGNO (XEXP (note, 0)))
|
1999-09-12 16:54:56 +02:00
|
|
|
|
&& (HARD_REGNO_NREGS (REGNO (XEXP (note, 0)), rld[output_reload].outmode)
|
1992-02-28 11:23:25 +01:00
|
|
|
|
<= HARD_REGNO_NREGS (REGNO (XEXP (note, 0)), GET_MODE (XEXP (note, 0))))
|
1994-12-01 00:04:48 +01:00
|
|
|
|
/* Ensure that a secondary or tertiary reload for this output
|
|
|
|
|
won't want this register. */
|
1999-09-12 16:54:56 +02:00
|
|
|
|
&& ((secondary_out = rld[output_reload].secondary_out_reload) == -1
|
1999-09-01 16:30:35 +02:00
|
|
|
|
|| (! (TEST_HARD_REG_BIT
|
1999-09-12 16:54:56 +02:00
|
|
|
|
(reg_class_contents[(int) rld[secondary_out].class],
|
1999-09-01 16:30:35 +02:00
|
|
|
|
REGNO (XEXP (note, 0))))
|
1999-09-12 16:54:56 +02:00
|
|
|
|
&& ((secondary_out = rld[secondary_out].secondary_out_reload) == -1
|
1994-12-01 00:04:48 +01:00
|
|
|
|
|| ! (TEST_HARD_REG_BIT
|
1999-09-12 16:54:56 +02:00
|
|
|
|
(reg_class_contents[(int) rld[secondary_out].class],
|
1994-12-01 00:04:48 +01:00
|
|
|
|
REGNO (XEXP (note, 0)))))))
|
1992-02-28 11:23:25 +01:00
|
|
|
|
&& ! fixed_regs[REGNO (XEXP (note, 0))])
|
|
|
|
|
{
|
1999-09-12 16:54:56 +02:00
|
|
|
|
rld[output_reload].reg_rtx
|
|
|
|
|
= gen_rtx_REG (rld[output_reload].outmode,
|
alias.c: Change all uses of gen_rtx(FOO...) to gen_rtx_FOO...
* alias.c: Change all uses of gen_rtx(FOO...) to gen_rtx_FOO;
change gen_rtx(expr...) to gen_rtx_fmt_foo(expr...).
* caller-save.c, calls.c, combine.c, cse.c: Likewise.
* dwarf2out.c, except.c, explow.c, expmed.c, expr.c: Likewise.
* final.c, flow.c, function.c, genpeep.c, haifa-sched.c: Likewise.
* halfpic.c, integrate.c, jump.c, local-alloc.c, loop.c: Likewise.
* profile.c, recog.c, reg-stack.c, regclass.c, regmove.c: Likewise.
* reload.c, reload1.c, reorg.c, sched.c, stmt.c, stupid.c: Likewise.
* unroll.c, varasm.c: Likewise.
* config/alpha/alpha.c, config/alpha/alpha.md: Likewise.
From-SVN: r17357
1998-01-15 00:10:50 +01:00
|
|
|
|
REGNO (XEXP (note, 0)));
|
1992-02-28 11:23:25 +01:00
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Try to find a reload register for an in-out reload (expressions IN and OUT).
|
|
|
|
|
See if one of IN and OUT is a register that may be used;
|
|
|
|
|
this is desirable since a spill-register won't be needed.
|
|
|
|
|
If so, return the register rtx that proves acceptable.
|
|
|
|
|
|
|
|
|
|
INLOC and OUTLOC are locations where IN and OUT appear in the insn.
|
|
|
|
|
CLASS is the register class required for the reload.
|
|
|
|
|
|
|
|
|
|
If FOR_REAL is >= 0, it is the number of the reload,
|
|
|
|
|
and in some cases when it can be discovered that OUT doesn't need
|
1999-09-12 16:54:56 +02:00
|
|
|
|
to be computed, clear out rld[FOR_REAL].out.
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
|
|
|
|
If FOR_REAL is -1, this should not be done, because this call
|
1997-03-25 20:27:59 +01:00
|
|
|
|
is just to see if a register can be found, not to find and install it.
|
|
|
|
|
|
|
|
|
|
EARLYCLOBBER is non-zero if OUT is an earlyclobber operand. This
|
|
|
|
|
puts an additional constraint on being able to use IN for OUT since
|
|
|
|
|
IN must not appear elsewhere in the insn (it is assumed that IN itself
|
|
|
|
|
is safe from the earlyclobber). */
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
|
|
|
|
static rtx
|
1993-09-14 18:39:28 +02:00
|
|
|
|
find_dummy_reload (real_in, real_out, inloc, outloc,
|
1997-03-25 20:27:59 +01:00
|
|
|
|
inmode, outmode, class, for_real, earlyclobber)
|
1992-02-28 11:23:25 +01:00
|
|
|
|
rtx real_in, real_out;
|
|
|
|
|
rtx *inloc, *outloc;
|
1993-09-14 18:39:28 +02:00
|
|
|
|
enum machine_mode inmode, outmode;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
enum reg_class class;
|
|
|
|
|
int for_real;
|
1997-03-25 20:27:59 +01:00
|
|
|
|
int earlyclobber;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
{
|
|
|
|
|
rtx in = real_in;
|
|
|
|
|
rtx out = real_out;
|
|
|
|
|
int in_offset = 0;
|
|
|
|
|
int out_offset = 0;
|
|
|
|
|
rtx value = 0;
|
|
|
|
|
|
|
|
|
|
/* If operands exceed a word, we can't use either of them
|
|
|
|
|
unless they have the same size. */
|
1993-09-14 18:39:28 +02:00
|
|
|
|
if (GET_MODE_SIZE (outmode) != GET_MODE_SIZE (inmode)
|
|
|
|
|
&& (GET_MODE_SIZE (outmode) > UNITS_PER_WORD
|
|
|
|
|
|| GET_MODE_SIZE (inmode) > UNITS_PER_WORD))
|
1992-02-28 11:23:25 +01:00
|
|
|
|
return 0;
|
|
|
|
|
|
Use byte offsets in SUBREGs instead of words.
2001-04-03 Jakub Jelinek <jakub@redhat.com>
David S. Miller <davem@pierdol.cobaltmicro.com>
Andrew MacLeod <amacleod@redhat.com>
Use byte offsets in SUBREGs instead of words.
* alias.c (nonlocal_mentioned_p): Use subreg_regno function.
* caller-save.c (mark_set_regs): Change callers of subreg_hard_regno
to pass new argument.
(add_stored_regs): Use subreg_regno_offset function.
* calls.c (expand_call): For non-paradoxical SUBREG take endianess
into account.
(precompute_arguments): Use gen_lowpart_SUBREG.
* combine.c (try_combine): Replace explicit XEXP with SUBREG_REG.
(combine_simplify_rtx): Rework to use SUBREG_BYTE.
(simplify_set): Rework to use SUBREG_BYTE.
(expand_field_assignment): Use SUBREG_BYTE.
(make_extraction): Use SUBREG_BYTE.
(if_then_else_cond): Use SUBREG_BYTE.
(apply_distributive_law): Use SUBREG_BYTE and fixup subreg comments.
(gen_lowpart_for_combine): Compute full byte offset.
* cse.c (mention_regs): Use SUBREG_BYTE.
(remove_invalid_subreg_refs): Rework to use SUBREG_BYTE.
(canon_hash): Use SUBREG_BYTE.
(fold_rtx): Pass SUBREG_BYTE div UNITS_PER_WORD to operand_subword.
(gen_lowpart_if_possible): Formatting.
* dbxout.c (dbxout_symbol_location): Compute SUBREG hard regnos
correctly.
* dwarf2out.c (is_pseudo_reg): Fixup explicit XEXP into SUBREG_REG
(mem_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
(loc_descriptor): Fixup explicit XEXP into SUBREG_REG
* dwarfout.c (is_pseudo_reg): Fixup explicit XEXP into SUBREG_REG
(output_mem_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
(output_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
* emit-rtl.c (gen_rtx_SUBREG): New function, used to verify
certain invariants about SUBREGs the compiler creates.
(gen_lowpart_SUBREG): New function.
(subreg_hard_regno): New function to get the final register number.
(gen_lowpart_common): Use SUBREG_BYTE.
(gen_imagpart): Spacing nits.
(subreg_realpart_p): Use SUBREG_BYTE.
(gen_highpart): Use SUBREG_BYTE.
(subreg_lowpart_p): Always compute endian corrected goal offset,
even at the byte level, then compare against that.
(constant_subword): New function, pulled out all constant cases
from operand_subword and changed second argument name to offset.
(operand_subword): Detect non REG/SUBREG/CONCAT/MEM cases early
and call constant_subword to do the work. Return const0_rtx if
looking for a word outside of OP.
(operand_subword_force): Change second arg name to offset.
* expmed.c (store_bit_field): Use SUBREG_BYTE.
(store_split_bit_field): Use SUBREG_BYTE.
(extract_bit_field): Use SUBREG_BYTE.
(extract_split_bit_field): Use SUBREG_BYTE.
(expand_shift): Use SUBREG_BYTE.
* expr.c (store_expr, expand_expr): Use gen_lowpart_SUBREG.
* final.c (alter_subreg) Use subreg_hard_regno and SUBREG_BYTE.
* flow.c (set_noop_p): Use SUBREG_BYTE.
(mark_set_1): Remove ALTER_HARD_SUBREG. Use subreg_regno_offset instead.
* function.c (fixup_var_refs_1): Fixup explicit XEXP into a SUBREG_REG.
(fixup_memory_subreg): Use SUBREG_BYTE and remove byte endian
correction code.
(optimize_bit_field): Use SUBREG_BYTE.
(purge_addressof_1): Use SUBREG_BYTE.
(purge_single_hard_subreg_set): Use subreg_regno_offset function.
(assign_params): Mark arguments SUBREG_PROMOTED_VAR_P if they are
actually promoted by the caller and PROMOTE_FOR_CALLS_ONLY is true.
* gengenrtl.c (special_rtx): Add SUBREG.
* global.c (mark_reg_store): Use SUBREG_BYTE.
(set_preference): Rework to use subreg_regno_offset and SUBREG_BYTE.
* ifcvt (noce_emit_move_insn): Use SUBREG_BYTE.
* integrate.c (copy_rtx_and_substitute): Use SUBREG_BYTE and make sure
final byte offset is congruent to subreg's mode size.
(subst_constants): Use SUBREG_BYTE.
(mark_stores): Use subreg_regno_offset function.
* jump.c (rtx_renumbered_equal_p, true_regnum): Use subreg_regno_offset
function and SUBREG_BYTE.
* local-alloc.c (combine_regs): Use subreg_regno_offset function.
(reg_is_born): Use subreg_hard_regno.
* recog.c (valid_replace_rtx_1): Use SUBREG_BYTE and remove byte
endian correction code. Don't combine subregs unless resulting
offset aligns with type. Fix subreg constant extraction for DImode.
Simplify SUBREG of VOIDmode CONST_DOUBLE.
(general_operand): Remove dead mode_altering_drug code.
(indirect_operand): Use SUBREG_BYTE.
(constrain_operands): Use subreg_regno_offset function.
* reg-stack.c (get_true_reg): Use subreg_regno_offset function.
* regmove.c (regmove_optimize): Use SUBREG_BYTE.
(optimize_reg_copy_3): Use gen_lowpart_SUBREG.
* regs.h (REG_SIZE): Allow target to override.
(REGMODE_NATURAL_SIZE): New macro which target can override.
* reload.c (reload_inner_reg_of_subreg): subreg_regno should be used
on the entire subreg rtx.
(push_reload): Use SUBREG_BYTE in comments and code.
(find_dummy_reload): Use subreg_regno_offset. Only adjust offsets
for hard registers inside subregs.
(operands_match_p): Use subreg_regno_offset.
(find_reloads): Use SUBREG_BYTE and only advance offset for subregs
containing hard regs.
(find_reload_toplev): Use SUBREG_BYTE. Remove byte endian
corrections when fixing up MEM subregs.
(find_reloads_address_1): Use SUBREG_BYTE, subreg_regno, and
subreg_regno_offset where appropriate.
(find_reloads_subreg_address): Use SUBREG_BYTE. Remove
byte endian corrections when fixing up MEM subregs.
(subst_reloads): When combining two subregs, make sure final
offset is congruent to subreg's mode size.
(find_replacement): Use SUBREG_BYTE and subreg_regno_offset.
(refers_to_regno_for_reload_p): Use subreg_regno.
(reg_overlap_mentioned_for_reload_p): Use subreg_regno_offset.
* reload1.c (eliminate_regs) Use SUBREG_BYTE. Remove byte endian
correction code for memory subreg fixups.
(forget_old_reload_1): Use subreg_regno_offset.
(choose_reload_regs): Use subreg_regno.
(emit_input_reload_insns): Use SUBREG_BYTE.
(reload_combine_note_store): Use subreg_regno_offset.
(move2add_note_store): Use subreg_regno_offset.
* resource.c (update_live_status, mark_referenced_resources): Use
subreg_regno function.
(mark_set_resources): Use subreg_regno function.
* rtl.h (SUBREG_WORD): Rename to SUBREG_BYTE.
(subreg_regno_offset, subreg_regno): Define prototypes.
(subreg_hard_regno, constant_subword, gen_rtx_SUBREG): Newi functions.
(gen_lowpart_SUBREG): Add prototype.
* rtl.texi (subreg): Update to reflect new byte offset representation.
Add mentioning of the effect that BYTES_BIG_ENDIAN has on subregs now.
* rtlanal.c (refers_to_regno_p): Use subreg_regno.
(reg_overlap_mentioned_p): Use subreg_regno.
(replace_regs); Make sure final offset of combined subreg is
congruent to size of subreg's mode.
(subreg_regno_offset): New function.
(subreg_regno): New function.
* sched-vis.c (print_value): Change SUBREG_WORD to SUBREG_BYTE.
* sdbout.c (sdbout_symbol): Compute offset using alter_subreg.
* stmt.c (expand_anon_union_decl): Use gen_lowpart_SUBREG.
* tm.texi (ALTER_HARD_SUBREG): Remove, it is now dead.
(SUBREG_REGNO_OFFSET): Describe SUBREG_REGNO_OFFSET overrides.
* config/a29k/a29k.c (gpc_reg_operand): Use subreg_regno.
(a29k_get_reloaded_address): Use SUBREG_BYTE.
(print_operand): Use SUBREG_BYTE.
* config/alpha/alpha.c (print_operand_address): Use SUBREG_BYTE.
* config/arm/arm.c (arm_reload_in_hi): Use SUBREG_BYTE.
(arm_reload_out_hi): Use SUBREG_BYTE.
* config/d30v/d30v.c (d30v_split_double): Use subreg_regno_offset
instead of SUBREG_WORD.
(d30v_print_operand_memory_reference): Use subreg_regno_offset.
* config/dsp16xx/dsp16xx.md (extendqihi2, zero_extendqihi2): Fix
SUBREG creation to use byte offset.
* config/h8300/h8300.md (Unnamed HImode zero extraction and 16bit
inverted load insns): Fix explicit rtl subregs to use byte
offsets.
* config/i370/i370.md (cmpstrsi, movstrsi, mulsi3, divsi3,
udivsi3, umodsi3): Generate SUBREGs with byte offsets.
* config/i860/i860.c (single_insn_src_p): Use SUBREG_BYTE.
* config/i860/i860.md (mulsi3_big): Fixup explicit SUBREGs in rtl
to use byte offsets.
(unnamed fmlow.dd insn): Fixup SUBREGS to use byte offsets.
* config/i960/i960.md (extendhisi2): Generate SUBREGs with byte
offsets, also make sure it is congruent to SUBREG's mode size.
(extendqisi2, extendqihi2, zero_extendhisi2, zero_extendqisi2,
unnamed ldob insn): Generate SUBREGs with byte offset.
(zero_extendqihi2): SUBREG's are byte offsets.
* config/m68hc11/m68hc11.c (m68hc11_gen_lowpart): Use SUBREG_BYTE.
(m68hc11_gen_highpart): Use SUBREG_BYTE.
* config/m68k/m68k.md (zero_extendhisi2, zero_extendqihi2,
zero-extendqisi2): Generate SUBREGs with byte offset.
(umulsidi3, mulsidi3, subreghi1ashrdi_const32,
subregsi1ashrdi_const32, subreg1lshrdi_const32): Fixup explicit
subregs in rtl to use byte offsets.
* config/m88k/m88k.md (extendsidi2): fixup subregs to use byte offset.
* config/mips/mips.c (mips_move_1word): Use subreg_regno_offset.
(mips_move_2words): Use subreg_regno_offset.
(mips_secondary_reload_class): Use subreg_regno_offset.
* config/mips/mips.md (DImode plus, minus, move, and logical op
splits): Fixup explicit subregs in rtl to use byte offsets.
* config/mn10200/mn10200.c (print_operand): Use subreg_regno function.
* config/mn10300/mn10300.c (print_operand): Use subreg_regno function.
* config/ns32k/ns32k.md (udivmoddisi4): Fix explicit subregs in
rtl to use byte offsets.
* config/pa/pa.c (emit_move_sequence): Use SUBREG_BYTE.
* config/pa/pa.md (floatunssisf2, floatunssidf2, mulsi3): fix explicit
subregs to use byte offsets.
* config/pdp11/pdp11.md (zero_extendhisi2, modhi3, modhi3+1):
Fixup explicit subregs in rtl to use byte offsets.
* config/romp/romp.c (memory_offset_in_range_p): Use SUBREG_BYTE
and remove byte endian correction code.
* config/sh/sh.c (output_movedouble): Use subreg_regno.
(gen_ashift_hi): Use SUBREG_BYTE.
(regs_used): Use subreg_regno_offset.
(machine_dependent_reorg): Use subreg_regno_offset.
* config/sh/sh.h (INDEX_REGISTER_RTX_P): Use SUBREG_BYTE.
* config/sh/sh.md (DImode and DFmode move splits): Use subreg_regno.
(movdf_i4): Subregs are byte offsets now.
* config/sparc/sparc.c (ultra_find_type): Use SUBREG_BYTE.
* config/sparc/sparc.h (ALTER_HARD_SUBREG): Removed.
(REGMODE_NATURAL_SIZE): Override.
(REG_SIZE): For SUBREG check float mode on SUBREG_REG's mode.
* config/sparc/sparc.md (TFmode move splits): Generate SUBREGs
with byte offsets.
(zero_extendhisi2, zero_extendqidi2_insn, extendhisi2,
extendqihi2, sign_extendqihi2_insn, sign_extendqisi2_insn,
extendqidi2): Generate SUBREGs with byte offsets, also make sure
it is congruent to SUBREG's mode size.
(smulsi3_highpart_v8plus): Fix explicit subregs in rtl to use byte
offsets.
(cmp_siqi_trunc, cmp_siqi_trunc_set, cmp_diqi_trunc,
cmp_diqi_trunc_set, lshrdi3_v8plus+1, lshrdi3_v8plus+2,
lshrdi3_v8plus+3, lshrdi3_v8plus+4): Use proper
SUBREG_BYTE offset for non-paradoxical subregs in patterns.
* config/v850/v850.c (print_operand, output_move_double): Use
subreg_regno function.
Co-Authored-By: Andrew MacLeod <amacleod@redhat.com>
Co-Authored-By: David S. Miller <davem@pierdol.cobaltmicro.com>
From-SVN: r41058
2001-04-03 17:06:12 +02:00
|
|
|
|
/* Note that {in,out}_offset are needed only when 'in' or 'out'
|
|
|
|
|
respectively refers to a hard register. */
|
|
|
|
|
|
1992-02-28 11:23:25 +01:00
|
|
|
|
/* Find the inside of any subregs. */
|
|
|
|
|
while (GET_CODE (out) == SUBREG)
|
|
|
|
|
{
|
Use byte offsets in SUBREGs instead of words.
2001-04-03 Jakub Jelinek <jakub@redhat.com>
David S. Miller <davem@pierdol.cobaltmicro.com>
Andrew MacLeod <amacleod@redhat.com>
Use byte offsets in SUBREGs instead of words.
* alias.c (nonlocal_mentioned_p): Use subreg_regno function.
* caller-save.c (mark_set_regs): Change callers of subreg_hard_regno
to pass new argument.
(add_stored_regs): Use subreg_regno_offset function.
* calls.c (expand_call): For non-paradoxical SUBREG take endianess
into account.
(precompute_arguments): Use gen_lowpart_SUBREG.
* combine.c (try_combine): Replace explicit XEXP with SUBREG_REG.
(combine_simplify_rtx): Rework to use SUBREG_BYTE.
(simplify_set): Rework to use SUBREG_BYTE.
(expand_field_assignment): Use SUBREG_BYTE.
(make_extraction): Use SUBREG_BYTE.
(if_then_else_cond): Use SUBREG_BYTE.
(apply_distributive_law): Use SUBREG_BYTE and fixup subreg comments.
(gen_lowpart_for_combine): Compute full byte offset.
* cse.c (mention_regs): Use SUBREG_BYTE.
(remove_invalid_subreg_refs): Rework to use SUBREG_BYTE.
(canon_hash): Use SUBREG_BYTE.
(fold_rtx): Pass SUBREG_BYTE div UNITS_PER_WORD to operand_subword.
(gen_lowpart_if_possible): Formatting.
* dbxout.c (dbxout_symbol_location): Compute SUBREG hard regnos
correctly.
* dwarf2out.c (is_pseudo_reg): Fixup explicit XEXP into SUBREG_REG
(mem_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
(loc_descriptor): Fixup explicit XEXP into SUBREG_REG
* dwarfout.c (is_pseudo_reg): Fixup explicit XEXP into SUBREG_REG
(output_mem_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
(output_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
* emit-rtl.c (gen_rtx_SUBREG): New function, used to verify
certain invariants about SUBREGs the compiler creates.
(gen_lowpart_SUBREG): New function.
(subreg_hard_regno): New function to get the final register number.
(gen_lowpart_common): Use SUBREG_BYTE.
(gen_imagpart): Spacing nits.
(subreg_realpart_p): Use SUBREG_BYTE.
(gen_highpart): Use SUBREG_BYTE.
(subreg_lowpart_p): Always compute endian corrected goal offset,
even at the byte level, then compare against that.
(constant_subword): New function, pulled out all constant cases
from operand_subword and changed second argument name to offset.
(operand_subword): Detect non REG/SUBREG/CONCAT/MEM cases early
and call constant_subword to do the work. Return const0_rtx if
looking for a word outside of OP.
(operand_subword_force): Change second arg name to offset.
* expmed.c (store_bit_field): Use SUBREG_BYTE.
(store_split_bit_field): Use SUBREG_BYTE.
(extract_bit_field): Use SUBREG_BYTE.
(extract_split_bit_field): Use SUBREG_BYTE.
(expand_shift): Use SUBREG_BYTE.
* expr.c (store_expr, expand_expr): Use gen_lowpart_SUBREG.
* final.c (alter_subreg) Use subreg_hard_regno and SUBREG_BYTE.
* flow.c (set_noop_p): Use SUBREG_BYTE.
(mark_set_1): Remove ALTER_HARD_SUBREG. Use subreg_regno_offset instead.
* function.c (fixup_var_refs_1): Fixup explicit XEXP into a SUBREG_REG.
(fixup_memory_subreg): Use SUBREG_BYTE and remove byte endian
correction code.
(optimize_bit_field): Use SUBREG_BYTE.
(purge_addressof_1): Use SUBREG_BYTE.
(purge_single_hard_subreg_set): Use subreg_regno_offset function.
(assign_params): Mark arguments SUBREG_PROMOTED_VAR_P if they are
actually promoted by the caller and PROMOTE_FOR_CALLS_ONLY is true.
* gengenrtl.c (special_rtx): Add SUBREG.
* global.c (mark_reg_store): Use SUBREG_BYTE.
(set_preference): Rework to use subreg_regno_offset and SUBREG_BYTE.
* ifcvt (noce_emit_move_insn): Use SUBREG_BYTE.
* integrate.c (copy_rtx_and_substitute): Use SUBREG_BYTE and make sure
final byte offset is congruent to subreg's mode size.
(subst_constants): Use SUBREG_BYTE.
(mark_stores): Use subreg_regno_offset function.
* jump.c (rtx_renumbered_equal_p, true_regnum): Use subreg_regno_offset
function and SUBREG_BYTE.
* local-alloc.c (combine_regs): Use subreg_regno_offset function.
(reg_is_born): Use subreg_hard_regno.
* recog.c (valid_replace_rtx_1): Use SUBREG_BYTE and remove byte
endian correction code. Don't combine subregs unless resulting
offset aligns with type. Fix subreg constant extraction for DImode.
Simplify SUBREG of VOIDmode CONST_DOUBLE.
(general_operand): Remove dead mode_altering_drug code.
(indirect_operand): Use SUBREG_BYTE.
(constrain_operands): Use subreg_regno_offset function.
* reg-stack.c (get_true_reg): Use subreg_regno_offset function.
* regmove.c (regmove_optimize): Use SUBREG_BYTE.
(optimize_reg_copy_3): Use gen_lowpart_SUBREG.
* regs.h (REG_SIZE): Allow target to override.
(REGMODE_NATURAL_SIZE): New macro which target can override.
* reload.c (reload_inner_reg_of_subreg): subreg_regno should be used
on the entire subreg rtx.
(push_reload): Use SUBREG_BYTE in comments and code.
(find_dummy_reload): Use subreg_regno_offset. Only adjust offsets
for hard registers inside subregs.
(operands_match_p): Use subreg_regno_offset.
(find_reloads): Use SUBREG_BYTE and only advance offset for subregs
containing hard regs.
(find_reload_toplev): Use SUBREG_BYTE. Remove byte endian
corrections when fixing up MEM subregs.
(find_reloads_address_1): Use SUBREG_BYTE, subreg_regno, and
subreg_regno_offset where appropriate.
(find_reloads_subreg_address): Use SUBREG_BYTE. Remove
byte endian corrections when fixing up MEM subregs.
(subst_reloads): When combining two subregs, make sure final
offset is congruent to subreg's mode size.
(find_replacement): Use SUBREG_BYTE and subreg_regno_offset.
(refers_to_regno_for_reload_p): Use subreg_regno.
(reg_overlap_mentioned_for_reload_p): Use subreg_regno_offset.
* reload1.c (eliminate_regs) Use SUBREG_BYTE. Remove byte endian
correction code for memory subreg fixups.
(forget_old_reload_1): Use subreg_regno_offset.
(choose_reload_regs): Use subreg_regno.
(emit_input_reload_insns): Use SUBREG_BYTE.
(reload_combine_note_store): Use subreg_regno_offset.
(move2add_note_store): Use subreg_regno_offset.
* resource.c (update_live_status, mark_referenced_resources): Use
subreg_regno function.
(mark_set_resources): Use subreg_regno function.
* rtl.h (SUBREG_WORD): Rename to SUBREG_BYTE.
(subreg_regno_offset, subreg_regno): Define prototypes.
(subreg_hard_regno, constant_subword, gen_rtx_SUBREG): Newi functions.
(gen_lowpart_SUBREG): Add prototype.
* rtl.texi (subreg): Update to reflect new byte offset representation.
Add mentioning of the effect that BYTES_BIG_ENDIAN has on subregs now.
* rtlanal.c (refers_to_regno_p): Use subreg_regno.
(reg_overlap_mentioned_p): Use subreg_regno.
(replace_regs); Make sure final offset of combined subreg is
congruent to size of subreg's mode.
(subreg_regno_offset): New function.
(subreg_regno): New function.
* sched-vis.c (print_value): Change SUBREG_WORD to SUBREG_BYTE.
* sdbout.c (sdbout_symbol): Compute offset using alter_subreg.
* stmt.c (expand_anon_union_decl): Use gen_lowpart_SUBREG.
* tm.texi (ALTER_HARD_SUBREG): Remove, it is now dead.
(SUBREG_REGNO_OFFSET): Describe SUBREG_REGNO_OFFSET overrides.
* config/a29k/a29k.c (gpc_reg_operand): Use subreg_regno.
(a29k_get_reloaded_address): Use SUBREG_BYTE.
(print_operand): Use SUBREG_BYTE.
* config/alpha/alpha.c (print_operand_address): Use SUBREG_BYTE.
* config/arm/arm.c (arm_reload_in_hi): Use SUBREG_BYTE.
(arm_reload_out_hi): Use SUBREG_BYTE.
* config/d30v/d30v.c (d30v_split_double): Use subreg_regno_offset
instead of SUBREG_WORD.
(d30v_print_operand_memory_reference): Use subreg_regno_offset.
* config/dsp16xx/dsp16xx.md (extendqihi2, zero_extendqihi2): Fix
SUBREG creation to use byte offset.
* config/h8300/h8300.md (Unnamed HImode zero extraction and 16bit
inverted load insns): Fix explicit rtl subregs to use byte
offsets.
* config/i370/i370.md (cmpstrsi, movstrsi, mulsi3, divsi3,
udivsi3, umodsi3): Generate SUBREGs with byte offsets.
* config/i860/i860.c (single_insn_src_p): Use SUBREG_BYTE.
* config/i860/i860.md (mulsi3_big): Fixup explicit SUBREGs in rtl
to use byte offsets.
(unnamed fmlow.dd insn): Fixup SUBREGS to use byte offsets.
* config/i960/i960.md (extendhisi2): Generate SUBREGs with byte
offsets, also make sure it is congruent to SUBREG's mode size.
(extendqisi2, extendqihi2, zero_extendhisi2, zero_extendqisi2,
unnamed ldob insn): Generate SUBREGs with byte offset.
(zero_extendqihi2): SUBREG's are byte offsets.
* config/m68hc11/m68hc11.c (m68hc11_gen_lowpart): Use SUBREG_BYTE.
(m68hc11_gen_highpart): Use SUBREG_BYTE.
* config/m68k/m68k.md (zero_extendhisi2, zero_extendqihi2,
zero-extendqisi2): Generate SUBREGs with byte offset.
(umulsidi3, mulsidi3, subreghi1ashrdi_const32,
subregsi1ashrdi_const32, subreg1lshrdi_const32): Fixup explicit
subregs in rtl to use byte offsets.
* config/m88k/m88k.md (extendsidi2): fixup subregs to use byte offset.
* config/mips/mips.c (mips_move_1word): Use subreg_regno_offset.
(mips_move_2words): Use subreg_regno_offset.
(mips_secondary_reload_class): Use subreg_regno_offset.
* config/mips/mips.md (DImode plus, minus, move, and logical op
splits): Fixup explicit subregs in rtl to use byte offsets.
* config/mn10200/mn10200.c (print_operand): Use subreg_regno function.
* config/mn10300/mn10300.c (print_operand): Use subreg_regno function.
* config/ns32k/ns32k.md (udivmoddisi4): Fix explicit subregs in
rtl to use byte offsets.
* config/pa/pa.c (emit_move_sequence): Use SUBREG_BYTE.
* config/pa/pa.md (floatunssisf2, floatunssidf2, mulsi3): fix explicit
subregs to use byte offsets.
* config/pdp11/pdp11.md (zero_extendhisi2, modhi3, modhi3+1):
Fixup explicit subregs in rtl to use byte offsets.
* config/romp/romp.c (memory_offset_in_range_p): Use SUBREG_BYTE
and remove byte endian correction code.
* config/sh/sh.c (output_movedouble): Use subreg_regno.
(gen_ashift_hi): Use SUBREG_BYTE.
(regs_used): Use subreg_regno_offset.
(machine_dependent_reorg): Use subreg_regno_offset.
* config/sh/sh.h (INDEX_REGISTER_RTX_P): Use SUBREG_BYTE.
* config/sh/sh.md (DImode and DFmode move splits): Use subreg_regno.
(movdf_i4): Subregs are byte offsets now.
* config/sparc/sparc.c (ultra_find_type): Use SUBREG_BYTE.
* config/sparc/sparc.h (ALTER_HARD_SUBREG): Removed.
(REGMODE_NATURAL_SIZE): Override.
(REG_SIZE): For SUBREG check float mode on SUBREG_REG's mode.
* config/sparc/sparc.md (TFmode move splits): Generate SUBREGs
with byte offsets.
(zero_extendhisi2, zero_extendqidi2_insn, extendhisi2,
extendqihi2, sign_extendqihi2_insn, sign_extendqisi2_insn,
extendqidi2): Generate SUBREGs with byte offsets, also make sure
it is congruent to SUBREG's mode size.
(smulsi3_highpart_v8plus): Fix explicit subregs in rtl to use byte
offsets.
(cmp_siqi_trunc, cmp_siqi_trunc_set, cmp_diqi_trunc,
cmp_diqi_trunc_set, lshrdi3_v8plus+1, lshrdi3_v8plus+2,
lshrdi3_v8plus+3, lshrdi3_v8plus+4): Use proper
SUBREG_BYTE offset for non-paradoxical subregs in patterns.
* config/v850/v850.c (print_operand, output_move_double): Use
subreg_regno function.
Co-Authored-By: Andrew MacLeod <amacleod@redhat.com>
Co-Authored-By: David S. Miller <davem@pierdol.cobaltmicro.com>
From-SVN: r41058
2001-04-03 17:06:12 +02:00
|
|
|
|
if (GET_CODE (SUBREG_REG (out)) == REG
|
|
|
|
|
&& REGNO (SUBREG_REG (out)) < FIRST_PSEUDO_REGISTER)
|
|
|
|
|
out_offset += subreg_regno_offset (REGNO (SUBREG_REG (out)),
|
|
|
|
|
GET_MODE (SUBREG_REG (out)),
|
|
|
|
|
SUBREG_BYTE (out),
|
|
|
|
|
GET_MODE (out));
|
1992-02-28 11:23:25 +01:00
|
|
|
|
out = SUBREG_REG (out);
|
|
|
|
|
}
|
|
|
|
|
while (GET_CODE (in) == SUBREG)
|
|
|
|
|
{
|
Use byte offsets in SUBREGs instead of words.
2001-04-03 Jakub Jelinek <jakub@redhat.com>
David S. Miller <davem@pierdol.cobaltmicro.com>
Andrew MacLeod <amacleod@redhat.com>
Use byte offsets in SUBREGs instead of words.
* alias.c (nonlocal_mentioned_p): Use subreg_regno function.
* caller-save.c (mark_set_regs): Change callers of subreg_hard_regno
to pass new argument.
(add_stored_regs): Use subreg_regno_offset function.
* calls.c (expand_call): For non-paradoxical SUBREG take endianess
into account.
(precompute_arguments): Use gen_lowpart_SUBREG.
* combine.c (try_combine): Replace explicit XEXP with SUBREG_REG.
(combine_simplify_rtx): Rework to use SUBREG_BYTE.
(simplify_set): Rework to use SUBREG_BYTE.
(expand_field_assignment): Use SUBREG_BYTE.
(make_extraction): Use SUBREG_BYTE.
(if_then_else_cond): Use SUBREG_BYTE.
(apply_distributive_law): Use SUBREG_BYTE and fixup subreg comments.
(gen_lowpart_for_combine): Compute full byte offset.
* cse.c (mention_regs): Use SUBREG_BYTE.
(remove_invalid_subreg_refs): Rework to use SUBREG_BYTE.
(canon_hash): Use SUBREG_BYTE.
(fold_rtx): Pass SUBREG_BYTE div UNITS_PER_WORD to operand_subword.
(gen_lowpart_if_possible): Formatting.
* dbxout.c (dbxout_symbol_location): Compute SUBREG hard regnos
correctly.
* dwarf2out.c (is_pseudo_reg): Fixup explicit XEXP into SUBREG_REG
(mem_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
(loc_descriptor): Fixup explicit XEXP into SUBREG_REG
* dwarfout.c (is_pseudo_reg): Fixup explicit XEXP into SUBREG_REG
(output_mem_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
(output_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
* emit-rtl.c (gen_rtx_SUBREG): New function, used to verify
certain invariants about SUBREGs the compiler creates.
(gen_lowpart_SUBREG): New function.
(subreg_hard_regno): New function to get the final register number.
(gen_lowpart_common): Use SUBREG_BYTE.
(gen_imagpart): Spacing nits.
(subreg_realpart_p): Use SUBREG_BYTE.
(gen_highpart): Use SUBREG_BYTE.
(subreg_lowpart_p): Always compute endian corrected goal offset,
even at the byte level, then compare against that.
(constant_subword): New function, pulled out all constant cases
from operand_subword and changed second argument name to offset.
(operand_subword): Detect non REG/SUBREG/CONCAT/MEM cases early
and call constant_subword to do the work. Return const0_rtx if
looking for a word outside of OP.
(operand_subword_force): Change second arg name to offset.
* expmed.c (store_bit_field): Use SUBREG_BYTE.
(store_split_bit_field): Use SUBREG_BYTE.
(extract_bit_field): Use SUBREG_BYTE.
(extract_split_bit_field): Use SUBREG_BYTE.
(expand_shift): Use SUBREG_BYTE.
* expr.c (store_expr, expand_expr): Use gen_lowpart_SUBREG.
* final.c (alter_subreg) Use subreg_hard_regno and SUBREG_BYTE.
* flow.c (set_noop_p): Use SUBREG_BYTE.
(mark_set_1): Remove ALTER_HARD_SUBREG. Use subreg_regno_offset instead.
* function.c (fixup_var_refs_1): Fixup explicit XEXP into a SUBREG_REG.
(fixup_memory_subreg): Use SUBREG_BYTE and remove byte endian
correction code.
(optimize_bit_field): Use SUBREG_BYTE.
(purge_addressof_1): Use SUBREG_BYTE.
(purge_single_hard_subreg_set): Use subreg_regno_offset function.
(assign_params): Mark arguments SUBREG_PROMOTED_VAR_P if they are
actually promoted by the caller and PROMOTE_FOR_CALLS_ONLY is true.
* gengenrtl.c (special_rtx): Add SUBREG.
* global.c (mark_reg_store): Use SUBREG_BYTE.
(set_preference): Rework to use subreg_regno_offset and SUBREG_BYTE.
* ifcvt (noce_emit_move_insn): Use SUBREG_BYTE.
* integrate.c (copy_rtx_and_substitute): Use SUBREG_BYTE and make sure
final byte offset is congruent to subreg's mode size.
(subst_constants): Use SUBREG_BYTE.
(mark_stores): Use subreg_regno_offset function.
* jump.c (rtx_renumbered_equal_p, true_regnum): Use subreg_regno_offset
function and SUBREG_BYTE.
* local-alloc.c (combine_regs): Use subreg_regno_offset function.
(reg_is_born): Use subreg_hard_regno.
* recog.c (valid_replace_rtx_1): Use SUBREG_BYTE and remove byte
endian correction code. Don't combine subregs unless resulting
offset aligns with type. Fix subreg constant extraction for DImode.
Simplify SUBREG of VOIDmode CONST_DOUBLE.
(general_operand): Remove dead mode_altering_drug code.
(indirect_operand): Use SUBREG_BYTE.
(constrain_operands): Use subreg_regno_offset function.
* reg-stack.c (get_true_reg): Use subreg_regno_offset function.
* regmove.c (regmove_optimize): Use SUBREG_BYTE.
(optimize_reg_copy_3): Use gen_lowpart_SUBREG.
* regs.h (REG_SIZE): Allow target to override.
(REGMODE_NATURAL_SIZE): New macro which target can override.
* reload.c (reload_inner_reg_of_subreg): subreg_regno should be used
on the entire subreg rtx.
(push_reload): Use SUBREG_BYTE in comments and code.
(find_dummy_reload): Use subreg_regno_offset. Only adjust offsets
for hard registers inside subregs.
(operands_match_p): Use subreg_regno_offset.
(find_reloads): Use SUBREG_BYTE and only advance offset for subregs
containing hard regs.
(find_reload_toplev): Use SUBREG_BYTE. Remove byte endian
corrections when fixing up MEM subregs.
(find_reloads_address_1): Use SUBREG_BYTE, subreg_regno, and
subreg_regno_offset where appropriate.
(find_reloads_subreg_address): Use SUBREG_BYTE. Remove
byte endian corrections when fixing up MEM subregs.
(subst_reloads): When combining two subregs, make sure final
offset is congruent to subreg's mode size.
(find_replacement): Use SUBREG_BYTE and subreg_regno_offset.
(refers_to_regno_for_reload_p): Use subreg_regno.
(reg_overlap_mentioned_for_reload_p): Use subreg_regno_offset.
* reload1.c (eliminate_regs) Use SUBREG_BYTE. Remove byte endian
correction code for memory subreg fixups.
(forget_old_reload_1): Use subreg_regno_offset.
(choose_reload_regs): Use subreg_regno.
(emit_input_reload_insns): Use SUBREG_BYTE.
(reload_combine_note_store): Use subreg_regno_offset.
(move2add_note_store): Use subreg_regno_offset.
* resource.c (update_live_status, mark_referenced_resources): Use
subreg_regno function.
(mark_set_resources): Use subreg_regno function.
* rtl.h (SUBREG_WORD): Rename to SUBREG_BYTE.
(subreg_regno_offset, subreg_regno): Define prototypes.
(subreg_hard_regno, constant_subword, gen_rtx_SUBREG): Newi functions.
(gen_lowpart_SUBREG): Add prototype.
* rtl.texi (subreg): Update to reflect new byte offset representation.
Add mentioning of the effect that BYTES_BIG_ENDIAN has on subregs now.
* rtlanal.c (refers_to_regno_p): Use subreg_regno.
(reg_overlap_mentioned_p): Use subreg_regno.
(replace_regs); Make sure final offset of combined subreg is
congruent to size of subreg's mode.
(subreg_regno_offset): New function.
(subreg_regno): New function.
* sched-vis.c (print_value): Change SUBREG_WORD to SUBREG_BYTE.
* sdbout.c (sdbout_symbol): Compute offset using alter_subreg.
* stmt.c (expand_anon_union_decl): Use gen_lowpart_SUBREG.
* tm.texi (ALTER_HARD_SUBREG): Remove, it is now dead.
(SUBREG_REGNO_OFFSET): Describe SUBREG_REGNO_OFFSET overrides.
* config/a29k/a29k.c (gpc_reg_operand): Use subreg_regno.
(a29k_get_reloaded_address): Use SUBREG_BYTE.
(print_operand): Use SUBREG_BYTE.
* config/alpha/alpha.c (print_operand_address): Use SUBREG_BYTE.
* config/arm/arm.c (arm_reload_in_hi): Use SUBREG_BYTE.
(arm_reload_out_hi): Use SUBREG_BYTE.
* config/d30v/d30v.c (d30v_split_double): Use subreg_regno_offset
instead of SUBREG_WORD.
(d30v_print_operand_memory_reference): Use subreg_regno_offset.
* config/dsp16xx/dsp16xx.md (extendqihi2, zero_extendqihi2): Fix
SUBREG creation to use byte offset.
* config/h8300/h8300.md (Unnamed HImode zero extraction and 16bit
inverted load insns): Fix explicit rtl subregs to use byte
offsets.
* config/i370/i370.md (cmpstrsi, movstrsi, mulsi3, divsi3,
udivsi3, umodsi3): Generate SUBREGs with byte offsets.
* config/i860/i860.c (single_insn_src_p): Use SUBREG_BYTE.
* config/i860/i860.md (mulsi3_big): Fixup explicit SUBREGs in rtl
to use byte offsets.
(unnamed fmlow.dd insn): Fixup SUBREGS to use byte offsets.
* config/i960/i960.md (extendhisi2): Generate SUBREGs with byte
offsets, also make sure it is congruent to SUBREG's mode size.
(extendqisi2, extendqihi2, zero_extendhisi2, zero_extendqisi2,
unnamed ldob insn): Generate SUBREGs with byte offset.
(zero_extendqihi2): SUBREG's are byte offsets.
* config/m68hc11/m68hc11.c (m68hc11_gen_lowpart): Use SUBREG_BYTE.
(m68hc11_gen_highpart): Use SUBREG_BYTE.
* config/m68k/m68k.md (zero_extendhisi2, zero_extendqihi2,
zero-extendqisi2): Generate SUBREGs with byte offset.
(umulsidi3, mulsidi3, subreghi1ashrdi_const32,
subregsi1ashrdi_const32, subreg1lshrdi_const32): Fixup explicit
subregs in rtl to use byte offsets.
* config/m88k/m88k.md (extendsidi2): fixup subregs to use byte offset.
* config/mips/mips.c (mips_move_1word): Use subreg_regno_offset.
(mips_move_2words): Use subreg_regno_offset.
(mips_secondary_reload_class): Use subreg_regno_offset.
* config/mips/mips.md (DImode plus, minus, move, and logical op
splits): Fixup explicit subregs in rtl to use byte offsets.
* config/mn10200/mn10200.c (print_operand): Use subreg_regno function.
* config/mn10300/mn10300.c (print_operand): Use subreg_regno function.
* config/ns32k/ns32k.md (udivmoddisi4): Fix explicit subregs in
rtl to use byte offsets.
* config/pa/pa.c (emit_move_sequence): Use SUBREG_BYTE.
* config/pa/pa.md (floatunssisf2, floatunssidf2, mulsi3): fix explicit
subregs to use byte offsets.
* config/pdp11/pdp11.md (zero_extendhisi2, modhi3, modhi3+1):
Fixup explicit subregs in rtl to use byte offsets.
* config/romp/romp.c (memory_offset_in_range_p): Use SUBREG_BYTE
and remove byte endian correction code.
* config/sh/sh.c (output_movedouble): Use subreg_regno.
(gen_ashift_hi): Use SUBREG_BYTE.
(regs_used): Use subreg_regno_offset.
(machine_dependent_reorg): Use subreg_regno_offset.
* config/sh/sh.h (INDEX_REGISTER_RTX_P): Use SUBREG_BYTE.
* config/sh/sh.md (DImode and DFmode move splits): Use subreg_regno.
(movdf_i4): Subregs are byte offsets now.
* config/sparc/sparc.c (ultra_find_type): Use SUBREG_BYTE.
* config/sparc/sparc.h (ALTER_HARD_SUBREG): Removed.
(REGMODE_NATURAL_SIZE): Override.
(REG_SIZE): For SUBREG check float mode on SUBREG_REG's mode.
* config/sparc/sparc.md (TFmode move splits): Generate SUBREGs
with byte offsets.
(zero_extendhisi2, zero_extendqidi2_insn, extendhisi2,
extendqihi2, sign_extendqihi2_insn, sign_extendqisi2_insn,
extendqidi2): Generate SUBREGs with byte offsets, also make sure
it is congruent to SUBREG's mode size.
(smulsi3_highpart_v8plus): Fix explicit subregs in rtl to use byte
offsets.
(cmp_siqi_trunc, cmp_siqi_trunc_set, cmp_diqi_trunc,
cmp_diqi_trunc_set, lshrdi3_v8plus+1, lshrdi3_v8plus+2,
lshrdi3_v8plus+3, lshrdi3_v8plus+4): Use proper
SUBREG_BYTE offset for non-paradoxical subregs in patterns.
* config/v850/v850.c (print_operand, output_move_double): Use
subreg_regno function.
Co-Authored-By: Andrew MacLeod <amacleod@redhat.com>
Co-Authored-By: David S. Miller <davem@pierdol.cobaltmicro.com>
From-SVN: r41058
2001-04-03 17:06:12 +02:00
|
|
|
|
if (GET_CODE (SUBREG_REG (in)) == REG
|
|
|
|
|
&& REGNO (SUBREG_REG (in)) < FIRST_PSEUDO_REGISTER)
|
|
|
|
|
in_offset += subreg_regno_offset (REGNO (SUBREG_REG (in)),
|
|
|
|
|
GET_MODE (SUBREG_REG (in)),
|
|
|
|
|
SUBREG_BYTE (in),
|
|
|
|
|
GET_MODE (in));
|
1992-02-28 11:23:25 +01:00
|
|
|
|
in = SUBREG_REG (in);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Narrow down the reg class, the same way push_reload will;
|
|
|
|
|
otherwise we might find a dummy now, but push_reload won't. */
|
|
|
|
|
class = PREFERRED_RELOAD_CLASS (in, class);
|
|
|
|
|
|
|
|
|
|
/* See if OUT will do. */
|
|
|
|
|
if (GET_CODE (out) == REG
|
|
|
|
|
&& REGNO (out) < FIRST_PSEUDO_REGISTER)
|
|
|
|
|
{
|
* Rework fields used to describe positions of bitfields and
modify sizes to be unsigned and use HOST_WIDE_INT.
* alias.c (reg_known_value_size): Now unsigned.
* c-typeck.c (build_unary_op, case ADDR_EXPR): Use byte_position.
(really_start_incremental_init): Use bitsize_zero_node.
(push_init_level, pop_init_level, output_init_element): Likewise.
Use bitsize_unit_node and bitsize_one_node.
(output_pending_init_elements, process_init_element): Likewise.
* combine.c (combine_max_regno, reg_sign_bit_copies): Now unsigned.
(make_extraction): Position and length HOST_WIDE_INT and unsigned
HOST_WIDE_INT, respectively.
(get_pos_from_mask): Passed in value is unsigned HOST_WIDE_INT.
(num_sign_bit_copies): Returns unsigned.
BITWIDTH now unsigned; rework arithmetic.
Remove recursive call from arg to MAX.
(combine_instructions, init_reg_last_arrays): NREGS now unsigned.
(setup_incoming_promotions, can_combine_p, try_combine, simplify_set):
REGNO now unsigned.
(set_nonzero_bit_and_sign_copies): NUM now unsigned.
(find_split_point, expand_compound_operation, make_extraction): LEN
now unsigned HOST_WIDE_INT, POS now HOST_WIDE_INT.
(make_field_assignment): Likewise.
(combine_simplify_rtx): Add cast.
(expand_compound_operation): MODEWIDTH now unsigned; rework arithmetic.
(force_to_mode): WIDTH now unsigned; add cast.
(if_then_else_cond): SIZE now unsigned.
(nonzero_bits): MODE_WIDTH, RESULT_WIDTH, and WIDTH now unsigned.
(extended_count): Now returns unsigned.
(simplify_shift_const): COUNT unsigned; arg is now INPUT_COUNT.
Add SIGNED_COUNT variable; MODE_WORDS and FIRST_COUNT now unsigned.
(simplify_comparison): MODE_WIDTH now unsigned.
(update_table_tick): REGNO and ENDREGNO now unsigned; new var R.
(mark_used_regs_combine): Likewise; rework arithmetic.
(record_value_for_reg): REGNO, ENDREGNO, and I now unsigned.
(record_dead_and_set_regs, reg_dead_at_p, distribute_notes): Likewise.
(record_promoted_value): REGNO now unsigned.
(get_last_value_validate): REGNO, ENDREGNO, and J now unsigned.
(get_last_value): REGNO now unsigned.
(use_crosses_set_p): REGNO and ENDREGNO now unsigned.
(reg_dead_regno, reg_dead_endregno): Now unsigned.
(remove_death): Arg REGNO now unsigned.
(move_deaths): REGNO, DEADREGNO, DEADEND, OUREND, and I now unsigned.
(reg_bitfield_target_p): REGNO, REGNO, ENDREGNO, and ENDTREGNO
now unsigned.
* convert.c (convert_to_integer): INPREC and OUTPREC now unsigned.
* cse.c (struct qty_table_elem): FIRST_REG and LAST_REG now unsigned.
(struct cse_reg_info): REGNO now unsigned.
(cached_regno): Now unsigned.
(REGNO_QTY_VALID_P): Add cast.
(make_new_qty, make_regs_eqv, delete_reg_eqiv): Regno args unsigned.
(remove_invalid_regs): Likewise.
(remove_invalid_subreg_refs): Likewise; arg WORD also unsigned
as are variables END and I.
(get_cse_reg_info, insert): Likewise.
(mention_regs, invalidate_for_call): REGNO, ENDREGNO, and I unsigned.
(canon_hash): Likewise.
(insert_regs, lookup_for_remove): REGNO now unsigned.
(invalidate): REGNO, ENDREGNO, TREGNO, and TENDREGNO now unsigned.
New variable RN.
* dbxout.c (dbxout_parms, dbxout_reg_parms): Don't check for REGNO < 0.
* dwarf2out.c (dwarf2ou_frame_debug_expr): Remove cast.
* emit-rtl.c (subreg_realpart_p): Add cast.
(operand_subword): Arg I is now unsigned as is var PARTWORDS.
(operand_subword_force): Arg I is now unsigned.
* except.c (eh_regs): Variable I is now unsigned.
* explow.c (hard_function_value): BYTES is unsigned HOST_WIDE_INT.
* expmed.c (store_fixed_bit_field): Position is HOST_WIDE_INT;
length is unsigned HOST_WIDE_INT; likewise for internal variables.
(store_split_bit_field, extract_fixed_bit_field): Likewise.
(extract_split_bit_field, store_bit_field, extract_bit_field):
Likewise.
* expr.c (store_constructor_fields, store_constructor, store_field):
Positions are HOST_WIDE_INT and lengths are unsigned HOST_WIDE_INT.
(expand_assignment, expand_expr, expand_expr_unaligned): Likewise.
(do_jump): Likewise.
(move_by_pieces, move_by_pieces_ninsns, clear_by_pieces):
MAX_SIZE is now unsigned.
(emit_group_load): BYTEPOS is HOST_WIDE_INT; BYTELEN is unsigned.
(emit_group_store): Likewise.
(emit_move_insn): I now unsigned.
(store_constructor): Use host_integerp, tree_low_cst, and
bitsize_unit_node.
(get_inner_reference): Return bitpos and bitsize as HOST_WIDE_INT.
Rework all calculations to use trees and new fields.
* expr.h (promoted_input_arg): Regno now unsigned.
(store_bit_field, extract_bit_field): Adjust types of pos and size.
(mark_seen_cases): Arg is HOST_WIDE_INT.
* flow.c (verify_wide_reg_1): REGNO now unsigned.
* fold-const.c (decode_field_reference): Size and pos HOST_WIDE_INT;
precisions and alignments are unsigned.
(optimize_bit_field_compare, fold_truthop): Likewise.
(int_const_binop): Adjust threshold for size_int_type_wide call.
(fold_convert): Likewise.
(size_int_type_wide): Make table larger and fix thinko that only
had half of table used.
(all_ones_mask_p, fold): Precisions are unsigned.
* function.c (put_reg_info_stack): REGNO is unsigned.
(instantiate_decl): Size is HOST_WIDE_INT.
(instantiate_virtual_regs): I is unsigned.
(assign_parms): REGNO, REGNOI, and REGNOR are unsigned.
(promoted_input_arg): REGNO is unsigned.
* function.h (struct function): x_max_parm_reg is now unsigned.
* gcse.c (max_gcse_regno): Now unsigned.
(struct null_pointer_info): min_reg and max_reg now unsigned.
(lookup_set, next_set): REGNO arg now unsigned.
(compute_hash_table): REGNO and I now unsigned.
(handle_avail_expr): regnum_for_replacing now unsigned.
(cprop_insn): REGNO now unsigned.
(delete_null_pointer_checks_1): BLOCK_REG now pointer to unsigned.
* ggc-common.c (ggc_mark_tree_children, case FIELD_DECL): New case.
* global.c (set_preference): SRC_REGNO, DEST_REGNO, and I now unsigned.
* hard-reg-set.h (reg_class_size): Now unsigned.
* integrate.c (mark_stores): LAST_REG and I now unsigned; new UREGNO.
* jump.c (mark_modified_reg): I now unsigned; add cast.
(rtx_equal_for_thread_p): Add cast.
* loop.c (max_reg_before_loop): Now unsigned.
(struct_movable): REGNO now unsigned.
(try_copy_prop): REGNO arg unsigned.
(regs_match_p): XN and YN now unsigned.
(consec_sets_invariant_p, maybe_eliminate_biv): REGNO now unsigned.
(strength_reduce): Likewise; NREGS also unsigned.
(first_increment_giv, last_increment_giv unsigned): Now unsigned.
* loop.h (struct iv_class): REGNO now unsigned.
(max_reg_before_loop, first_increment_giv, last_increment_giv):
Now unsigned.
* machmode.h (mode_size, mode_unit_size): Now unsigned.
(mode_for_size, smallest_mode_for_size): Pass size as unsigned.
* optabs.c (expand_binop): I and NWORDS now unsigned.
(expand_unop): I now unsigned.
* print-tree.c (print_node): Don't print DECL_FIELD_BITPOS, but do
print DECL_FIELD_OFFSET and DECL_FIELD_BIT_OFFSET.
* real.c (significand_size): Now returns unsigned.
* real.h (significand_size): Likewise.
* regclass.c (reg_class_size): Now unsigned.
(choose_hard_reg_mode): Both operands now unsigned.
(record_reg_classes): REGNO and NR now unsigned.
(reg_scan): NREGS now unsigned.
(reg_scan_update): old_max_regno now unsigned.
(reg_scan_mark_refs): Arg MIN_REGNO and var REGNO now unsigned.
* reload.c (find_valid_class): BEST_SIZE now unsigned.
(find_dummy_reload): REGNO, NWORDS, and I now unsigned.
(hard_reg_set_here_p): Args BEG_REGNO and END_REGNO now unsigned.
Likewise for variable R.
(refers_to_regno_for_reload_p): Args REGNO and END_REGNO now unsigned,
as are variables INNER_REGNO and INNER_ENDREGNO; add new variable R.
(find_equiv_reg): Add casts.
(regno_clobbered_p): Arg REGNO now unsigned.
* reload.h (struct reload): NREGS now unsigned.
(refers_to_regno_for_reload_p): Regno args are unsigned.
(regno_clobbered_p): Likewise.
* reload1.c (reg_max_ref_width, spill_stack_slot_width): Now unsigned.
(compute_use_by_pseudos): REGNO now unsigned.
(find_reg): I and J now unsigned, new variable K, and change loop
variables accordingly; THIS_NREGS now unsigned.
(alter_reg): INHERENT_SIZE and TOTAL_SIZE now unsigned.
(spill_hard_reg): REGNO arg now unsigned; add casts.
(forget_old_reloads_1): REGNO, NR, and I now unsigned.
(mark_reload_reg_in_use): Arg REGNO and vars NREGS and I now unsigned.
(clear_reload_reg_in_use): Arg REGNO and vars NREGS, START_REGNO,
END_REGNO, CONFLICT_START, and CONFLICT_END now unsigned.
(reload_reg_free_p, reload_reg_reaches_end_p): Arg REGNO now unsigned.
(choose_reload_regs): MAX_GROUP_SIZE now unsigned.
(emit_reload_insns): REGNO now unsigned.
(reload_cse_move2add): Add cast.
(move2add_note_store): REGNO and I now unsigned; new variable ENDREGNO
and rework loop.
* resource.c (mark_referenced_resources, mark_set_resources): New
variable R; REGNO and LAST_REGNO now unsigned.
(mark_target_live_regs): J and REGNO now unsigned.
* rtl.c (mode_size, mode_unit_size): Now unsigned.
* rtl.h (union rtunion_def): New field rtuint.
(XCUINT): New macro.
(ADDRESSOF_REGNO, REGNO, SUBREG_WORD): New XCUINT.
(operand_subword, operand_subword_force): Word number is unsigned.
(choose_hard_reg_mode): Operands are unsigned.
(refers_to-regno_p, dead_or_set_regno_p): Regno arg is unsigned.
(find_regno_note, find_regno_fusage, replace_regs): Likewise.
(regno_use_in, combine_instructions, remove_death): Likewise.
(reg_scan, reg_scan_update): Likewise.
(extended_count): Return is unsigned.
* rtlanal.c (refers_to_regno_p): Args REGNO and ENDREGNO and vars I,
INNER_REGNO, and INNER_ENDREGNO now unsigned; new variable X_REGNO.
(reg_overlap_mentioned_p): REGNO and ENDREGNO now unsigned.
(reg_set_last_first_regno, reg_set_last_last_regno): Now unsigned.
(reg_reg_last_1): FIRS and LAST now unsigned.
(dead_or_set_p): REGNO, LAST_REGNO, and I now unsigned.
(dead_or_set_regno_p): Arg TEST_REGNO and vars REGNO and ENDREGNO
now unsigned.
(find_regno_note, regno_use_in): Arg REGNO now unsigned.
(find_regno_fusage): Likewise; also var REGNOTE now unsigned.
(find_reg_fusage): Variables REGNO, END_REGNO, and I now unsigned.
(replace_regs): Arg NREGS now unsigned.
* sdbout.c (sdbout_parms, sdbout_reg_parms): Don't check REGNO < 0.
* simplify-rtx.c (simplify_unary_operation): WIDTH now unsigned.
(simplify_binary_operation): Likewise.
(cselib_invalidate_regno): Arg REGNO and variables ENDREGNO, I, and
THIS_LAST now unsigned.
(cselib_record_set): Add cast.
* ssa.c (ssa_max_reg_num): Now unsigned.
(rename_block): REGNO now unsigned.
* stmt.c (expand_return): Bit positions unsigned HOST_WIDE_INT;
sizes now unsigned.
(all_cases_count): Just return -1 not -2.
COUNT, MINVAL, and LASTVAL now HOST_WIDE_INT.
Rework tests to use trees whenever possible.
Use host_integerp and tree_low_cst.
(mark_seen_cases): COUNT arg now HOST_WIDE_INT;
Likewise variable NEXT_NODE_OFFSET; XLO now unsigned.
(check_for_full_enumeration_handing): BYTES_NEEDED, I to HOST_WIDE_INT.
* stor-layout.c (mode_for_size): SIZE arg now unsigned.
(smallest_mode_for_size): Likewise.
(layout_decl): Simplify handing of a specified DECL_SIZE_UNIT.
KNOWN_ALIGN is now an alignment, so simplify code.
Don't turn off DECL_BIT_FIELD if field is BLKmode, but not type.
(start_record_layout): Renamed from new_record_layout_info.
Update to new fields.
(debug_rli, normalize_rli, rli_size_unit_so_far, rli_size_so_far):
New functions.
(place_union_field): Renamed from layout_union_field.
Update to use new fields in rli.
(place_field): Renamed from layout_field.
Major rewrite to use new fields in rli; pass alignment to layout_decl.
(finalize_record_size): Rework to use new fields in rli and handle
union.
(compute_record_mode): Rework to simplify and to use new DECL fields.
(finalize_type_size): Make rounding more consistent.
(finish_union_layout): Deleted.
(layout_type, case VOID_TYPE): Don't set TYPE_SIZE_UNIT either.
(layout_type, case RECORD_TYPE): Call new function names.
(initialize_sizetypes): Set TYPE_IS_SIZETYPE.
(set_sizetype): Set TYPE_IS_SIZETYPE earlier.
(get_best_mode): UNIT is now unsigned; remove casts.
* tree.c (bit_position): Compute from new fields.
(byte_position, int_byte_position): New functions.
(print_type_hash_statistics): Cast to remove warning.
(build_range_type): Use host_integerp and tree_low_cst to try to hash.
(build_index_type): Likewise; make subtype of sizetype.
(build_index_2_type): Pass sizetype to build_range_type.
(build_common_tree_nodes): Use size_int and bitsize_int to
initialize nodes; add bitsize_{zero,one,unit}_node.
* tree.h (DECL_FIELD_CONTEXT): Use FIELD_DECL_CHECK.
(DECL_BIT_FIELD_TYPE, DECL_QUALIFIER, DECL_FCONTEXT): Likewise.
(DECL_PACKED, DECL_BIT_FIELD): Likewise.
(DECL_FIELD_BITPOS): Deleted.
(DECL_FIELD_OFFSET, DECL_FIELD_BIT_OFFSET): New fields.
(DECL_RESULT, DECL_SAVED_INSNS): Use FUNCTION_DECL_CHECK.
(DECL_FRAME_SIZE, DECL_FUNCTION_CODE, DECL_NO_STATIC_CHAIN): Likewise.
(DECL_INLINE, DECL_BUILT_IN_NONANSI, DECL_IS_MALLOC): Likewise.
(DECL_BUILT_IN_CLASS, DECL_STATIC_CONSTRUCTOR): Likewise.
(DECL_STATIC_DESTRUCTOR, DECL_NO_CHECK_MEMORY_USAGE): Likewise.
(DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT, DECL_NO_LIMIT_STACK) Likewise.
(DECL_ORIGINAL_TYPE, TYPE_DECL_SUPPRESS_DEBUG): Use TYPE_DECL_CHECK.
(DECL_ARG_TYPE_AS_WRITEN, DECL_ARG_TYPE): Use PARM_DECL_CHECK.
(DECL_INCOMING_RTL, DECL_TRANSPARENT_UNION): Likewise.
(DECL_ALIGN): Adjust to new field in union.
(DECL_OFFSET_ALIGN): New field.
(DECL_ERROR_ISSUED, DECL_TOO_LATE): Use LABEL_DECL_CHECK.
(DECL_IN_TEXT_SECTION): Use VAR_DECL_CHECK.
(union tree_decl): Add struct for both aligns.
(enum tree_index): Add TI_BITSIZE_{ZERO,ONE,UNIT}.
(bitsize_zero_node, bitsize_one_node, bitsize_unit_node): Added.
(struct record_layout_info): Rework fields to have offset
alignment and byte and bit position.
(start_record_layout, place_field): Renamed from old names.
(rli_size_so_far, rli_size_unit_so_far, normalize_rli): New decls.
(byte_position, int_byte_position): Likewise.
(get_inner_reference): Change types of position and length.
* unroll.c (unroll_loop): New variable R; use for some loops.
MAX_LOCAL_REGNUM and MAXREGNUM now unsigned.
(calculate_giv_inc): Arg REGNO now unsigned.
(copy_loop_body): REGNO and SRC_REGNO now unsigned.
* varasm.c (assemble_variable): Clean up handling of size using
host_integerp and tree_low_cst.
(decode_addr_const): Use byte, not bit, position.
(output_constructor): bitpos and offsets are HOST_WIDE_INT;
use tree_low_cst and int_bit_position.
* objc/objc-act.c (build_ivar_list_initializer): Use byte_position.
* ch/actions.c (check_missing_cases): BYTES_NEEDED is HOST_WIDE_INT.
* ch/typeck.c (expand_constant_to_buffer): Use int_byte_position.
(extract_constant_from_buffer): Likewise.
* cp/class.c (build_vbase_pointer_fields): layout_field now
place_field.
(get_vfield_offset): Use byte_position.
(set_rtti_entry): Set OFFSET to ssizetype zero.
(get_binfo_offset_as_int): Deleted.
(dfs_record_base_offsets): Use tree_low_cst.
(dfs_search_base_offsets): Likewise.
(layout_nonempty_base_or_field): Reflect changes in RLI format
and call byte_position.
(layout_empty_base): Convert offset to ssizetype.
(build_base_field): use rli_size_unit_so_far.
(dfs_propagate_binfo_offsets): Do computation in proper type.
(layout_virtual_bases): Pass ssizetype to propagate_binfo_offsets.
(layout_class_type): Reflect changes in RLI names and fields.
(finish_struct_1): Set DECL_FIELD_OFFSET.
* cp/dump.c (dequeue_and_dump): Call bit_position.
* cp/expr.c (cplus_expand_constant): Use byte_position.
* cp/rtti.c (expand_class_desc): Use bitsize_one_node.
* cp/typeck.c (build_component_addr): Use byte_position and don't
special case for zero offset.
* f/com.c (ffecom_tree_canonize_ptr_): Use bitsize_zero_node.
(ffecom_tree_canonize_ref_): Likewise.
* java/class.c (make_field_value): Use byte_position.
* java/expr.c (JAVA_ARRAY_LENGTH_OFFSET): Use byte_position.
(java_array_data_offset): Likewise.
* java/java-tree.h (MAYBE_CREATE_TYPE_TYPE_LANG_SPECIFIC): Add case to
bzero call.
From-SVN: r32742
2000-03-25 19:34:13 +01:00
|
|
|
|
unsigned int regno = REGNO (out) + out_offset;
|
|
|
|
|
unsigned int nwords = HARD_REGNO_NREGS (regno, outmode);
|
1992-08-21 19:40:27 +02:00
|
|
|
|
rtx saved_rtx;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
|
|
|
|
/* When we consider whether the insn uses OUT,
|
|
|
|
|
ignore references within IN. They don't prevent us
|
|
|
|
|
from copying IN into OUT, because those refs would
|
|
|
|
|
move into the insn that reloads IN.
|
|
|
|
|
|
|
|
|
|
However, we only ignore IN in its role as this reload.
|
|
|
|
|
If the insn uses IN elsewhere and it contains OUT,
|
|
|
|
|
that counts. We can't be sure it's the "same" operand
|
|
|
|
|
so it might not go through this reload. */
|
1992-08-21 19:40:27 +02:00
|
|
|
|
saved_rtx = *inloc;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
*inloc = const0_rtx;
|
|
|
|
|
|
|
|
|
|
if (regno < FIRST_PSEUDO_REGISTER
|
2002-02-15 13:18:49 +01:00
|
|
|
|
&& HARD_REGNO_MODE_OK (regno, outmode)
|
1992-02-28 11:23:25 +01:00
|
|
|
|
&& ! refers_to_regno_for_reload_p (regno, regno + nwords,
|
|
|
|
|
PATTERN (this_insn), outloc))
|
|
|
|
|
{
|
* Rework fields used to describe positions of bitfields and
modify sizes to be unsigned and use HOST_WIDE_INT.
* alias.c (reg_known_value_size): Now unsigned.
* c-typeck.c (build_unary_op, case ADDR_EXPR): Use byte_position.
(really_start_incremental_init): Use bitsize_zero_node.
(push_init_level, pop_init_level, output_init_element): Likewise.
Use bitsize_unit_node and bitsize_one_node.
(output_pending_init_elements, process_init_element): Likewise.
* combine.c (combine_max_regno, reg_sign_bit_copies): Now unsigned.
(make_extraction): Position and length HOST_WIDE_INT and unsigned
HOST_WIDE_INT, respectively.
(get_pos_from_mask): Passed in value is unsigned HOST_WIDE_INT.
(num_sign_bit_copies): Returns unsigned.
BITWIDTH now unsigned; rework arithmetic.
Remove recursive call from arg to MAX.
(combine_instructions, init_reg_last_arrays): NREGS now unsigned.
(setup_incoming_promotions, can_combine_p, try_combine, simplify_set):
REGNO now unsigned.
(set_nonzero_bit_and_sign_copies): NUM now unsigned.
(find_split_point, expand_compound_operation, make_extraction): LEN
now unsigned HOST_WIDE_INT, POS now HOST_WIDE_INT.
(make_field_assignment): Likewise.
(combine_simplify_rtx): Add cast.
(expand_compound_operation): MODEWIDTH now unsigned; rework arithmetic.
(force_to_mode): WIDTH now unsigned; add cast.
(if_then_else_cond): SIZE now unsigned.
(nonzero_bits): MODE_WIDTH, RESULT_WIDTH, and WIDTH now unsigned.
(extended_count): Now returns unsigned.
(simplify_shift_const): COUNT unsigned; arg is now INPUT_COUNT.
Add SIGNED_COUNT variable; MODE_WORDS and FIRST_COUNT now unsigned.
(simplify_comparison): MODE_WIDTH now unsigned.
(update_table_tick): REGNO and ENDREGNO now unsigned; new var R.
(mark_used_regs_combine): Likewise; rework arithmetic.
(record_value_for_reg): REGNO, ENDREGNO, and I now unsigned.
(record_dead_and_set_regs, reg_dead_at_p, distribute_notes): Likewise.
(record_promoted_value): REGNO now unsigned.
(get_last_value_validate): REGNO, ENDREGNO, and J now unsigned.
(get_last_value): REGNO now unsigned.
(use_crosses_set_p): REGNO and ENDREGNO now unsigned.
(reg_dead_regno, reg_dead_endregno): Now unsigned.
(remove_death): Arg REGNO now unsigned.
(move_deaths): REGNO, DEADREGNO, DEADEND, OUREND, and I now unsigned.
(reg_bitfield_target_p): REGNO, REGNO, ENDREGNO, and ENDTREGNO
now unsigned.
* convert.c (convert_to_integer): INPREC and OUTPREC now unsigned.
* cse.c (struct qty_table_elem): FIRST_REG and LAST_REG now unsigned.
(struct cse_reg_info): REGNO now unsigned.
(cached_regno): Now unsigned.
(REGNO_QTY_VALID_P): Add cast.
(make_new_qty, make_regs_eqv, delete_reg_eqiv): Regno args unsigned.
(remove_invalid_regs): Likewise.
(remove_invalid_subreg_refs): Likewise; arg WORD also unsigned
as are variables END and I.
(get_cse_reg_info, insert): Likewise.
(mention_regs, invalidate_for_call): REGNO, ENDREGNO, and I unsigned.
(canon_hash): Likewise.
(insert_regs, lookup_for_remove): REGNO now unsigned.
(invalidate): REGNO, ENDREGNO, TREGNO, and TENDREGNO now unsigned.
New variable RN.
* dbxout.c (dbxout_parms, dbxout_reg_parms): Don't check for REGNO < 0.
* dwarf2out.c (dwarf2ou_frame_debug_expr): Remove cast.
* emit-rtl.c (subreg_realpart_p): Add cast.
(operand_subword): Arg I is now unsigned as is var PARTWORDS.
(operand_subword_force): Arg I is now unsigned.
* except.c (eh_regs): Variable I is now unsigned.
* explow.c (hard_function_value): BYTES is unsigned HOST_WIDE_INT.
* expmed.c (store_fixed_bit_field): Position is HOST_WIDE_INT;
length is unsigned HOST_WIDE_INT; likewise for internal variables.
(store_split_bit_field, extract_fixed_bit_field): Likewise.
(extract_split_bit_field, store_bit_field, extract_bit_field):
Likewise.
* expr.c (store_constructor_fields, store_constructor, store_field):
Positions are HOST_WIDE_INT and lengths are unsigned HOST_WIDE_INT.
(expand_assignment, expand_expr, expand_expr_unaligned): Likewise.
(do_jump): Likewise.
(move_by_pieces, move_by_pieces_ninsns, clear_by_pieces):
MAX_SIZE is now unsigned.
(emit_group_load): BYTEPOS is HOST_WIDE_INT; BYTELEN is unsigned.
(emit_group_store): Likewise.
(emit_move_insn): I now unsigned.
(store_constructor): Use host_integerp, tree_low_cst, and
bitsize_unit_node.
(get_inner_reference): Return bitpos and bitsize as HOST_WIDE_INT.
Rework all calculations to use trees and new fields.
* expr.h (promoted_input_arg): Regno now unsigned.
(store_bit_field, extract_bit_field): Adjust types of pos and size.
(mark_seen_cases): Arg is HOST_WIDE_INT.
* flow.c (verify_wide_reg_1): REGNO now unsigned.
* fold-const.c (decode_field_reference): Size and pos HOST_WIDE_INT;
precisions and alignments are unsigned.
(optimize_bit_field_compare, fold_truthop): Likewise.
(int_const_binop): Adjust threshold for size_int_type_wide call.
(fold_convert): Likewise.
(size_int_type_wide): Make table larger and fix thinko that only
had half of table used.
(all_ones_mask_p, fold): Precisions are unsigned.
* function.c (put_reg_info_stack): REGNO is unsigned.
(instantiate_decl): Size is HOST_WIDE_INT.
(instantiate_virtual_regs): I is unsigned.
(assign_parms): REGNO, REGNOI, and REGNOR are unsigned.
(promoted_input_arg): REGNO is unsigned.
* function.h (struct function): x_max_parm_reg is now unsigned.
* gcse.c (max_gcse_regno): Now unsigned.
(struct null_pointer_info): min_reg and max_reg now unsigned.
(lookup_set, next_set): REGNO arg now unsigned.
(compute_hash_table): REGNO and I now unsigned.
(handle_avail_expr): regnum_for_replacing now unsigned.
(cprop_insn): REGNO now unsigned.
(delete_null_pointer_checks_1): BLOCK_REG now pointer to unsigned.
* ggc-common.c (ggc_mark_tree_children, case FIELD_DECL): New case.
* global.c (set_preference): SRC_REGNO, DEST_REGNO, and I now unsigned.
* hard-reg-set.h (reg_class_size): Now unsigned.
* integrate.c (mark_stores): LAST_REG and I now unsigned; new UREGNO.
* jump.c (mark_modified_reg): I now unsigned; add cast.
(rtx_equal_for_thread_p): Add cast.
* loop.c (max_reg_before_loop): Now unsigned.
(struct_movable): REGNO now unsigned.
(try_copy_prop): REGNO arg unsigned.
(regs_match_p): XN and YN now unsigned.
(consec_sets_invariant_p, maybe_eliminate_biv): REGNO now unsigned.
(strength_reduce): Likewise; NREGS also unsigned.
(first_increment_giv, last_increment_giv unsigned): Now unsigned.
* loop.h (struct iv_class): REGNO now unsigned.
(max_reg_before_loop, first_increment_giv, last_increment_giv):
Now unsigned.
* machmode.h (mode_size, mode_unit_size): Now unsigned.
(mode_for_size, smallest_mode_for_size): Pass size as unsigned.
* optabs.c (expand_binop): I and NWORDS now unsigned.
(expand_unop): I now unsigned.
* print-tree.c (print_node): Don't print DECL_FIELD_BITPOS, but do
print DECL_FIELD_OFFSET and DECL_FIELD_BIT_OFFSET.
* real.c (significand_size): Now returns unsigned.
* real.h (significand_size): Likewise.
* regclass.c (reg_class_size): Now unsigned.
(choose_hard_reg_mode): Both operands now unsigned.
(record_reg_classes): REGNO and NR now unsigned.
(reg_scan): NREGS now unsigned.
(reg_scan_update): old_max_regno now unsigned.
(reg_scan_mark_refs): Arg MIN_REGNO and var REGNO now unsigned.
* reload.c (find_valid_class): BEST_SIZE now unsigned.
(find_dummy_reload): REGNO, NWORDS, and I now unsigned.
(hard_reg_set_here_p): Args BEG_REGNO and END_REGNO now unsigned.
Likewise for variable R.
(refers_to_regno_for_reload_p): Args REGNO and END_REGNO now unsigned,
as are variables INNER_REGNO and INNER_ENDREGNO; add new variable R.
(find_equiv_reg): Add casts.
(regno_clobbered_p): Arg REGNO now unsigned.
* reload.h (struct reload): NREGS now unsigned.
(refers_to_regno_for_reload_p): Regno args are unsigned.
(regno_clobbered_p): Likewise.
* reload1.c (reg_max_ref_width, spill_stack_slot_width): Now unsigned.
(compute_use_by_pseudos): REGNO now unsigned.
(find_reg): I and J now unsigned, new variable K, and change loop
variables accordingly; THIS_NREGS now unsigned.
(alter_reg): INHERENT_SIZE and TOTAL_SIZE now unsigned.
(spill_hard_reg): REGNO arg now unsigned; add casts.
(forget_old_reloads_1): REGNO, NR, and I now unsigned.
(mark_reload_reg_in_use): Arg REGNO and vars NREGS and I now unsigned.
(clear_reload_reg_in_use): Arg REGNO and vars NREGS, START_REGNO,
END_REGNO, CONFLICT_START, and CONFLICT_END now unsigned.
(reload_reg_free_p, reload_reg_reaches_end_p): Arg REGNO now unsigned.
(choose_reload_regs): MAX_GROUP_SIZE now unsigned.
(emit_reload_insns): REGNO now unsigned.
(reload_cse_move2add): Add cast.
(move2add_note_store): REGNO and I now unsigned; new variable ENDREGNO
and rework loop.
* resource.c (mark_referenced_resources, mark_set_resources): New
variable R; REGNO and LAST_REGNO now unsigned.
(mark_target_live_regs): J and REGNO now unsigned.
* rtl.c (mode_size, mode_unit_size): Now unsigned.
* rtl.h (union rtunion_def): New field rtuint.
(XCUINT): New macro.
(ADDRESSOF_REGNO, REGNO, SUBREG_WORD): New XCUINT.
(operand_subword, operand_subword_force): Word number is unsigned.
(choose_hard_reg_mode): Operands are unsigned.
(refers_to-regno_p, dead_or_set_regno_p): Regno arg is unsigned.
(find_regno_note, find_regno_fusage, replace_regs): Likewise.
(regno_use_in, combine_instructions, remove_death): Likewise.
(reg_scan, reg_scan_update): Likewise.
(extended_count): Return is unsigned.
* rtlanal.c (refers_to_regno_p): Args REGNO and ENDREGNO and vars I,
INNER_REGNO, and INNER_ENDREGNO now unsigned; new variable X_REGNO.
(reg_overlap_mentioned_p): REGNO and ENDREGNO now unsigned.
(reg_set_last_first_regno, reg_set_last_last_regno): Now unsigned.
(reg_reg_last_1): FIRS and LAST now unsigned.
(dead_or_set_p): REGNO, LAST_REGNO, and I now unsigned.
(dead_or_set_regno_p): Arg TEST_REGNO and vars REGNO and ENDREGNO
now unsigned.
(find_regno_note, regno_use_in): Arg REGNO now unsigned.
(find_regno_fusage): Likewise; also var REGNOTE now unsigned.
(find_reg_fusage): Variables REGNO, END_REGNO, and I now unsigned.
(replace_regs): Arg NREGS now unsigned.
* sdbout.c (sdbout_parms, sdbout_reg_parms): Don't check REGNO < 0.
* simplify-rtx.c (simplify_unary_operation): WIDTH now unsigned.
(simplify_binary_operation): Likewise.
(cselib_invalidate_regno): Arg REGNO and variables ENDREGNO, I, and
THIS_LAST now unsigned.
(cselib_record_set): Add cast.
* ssa.c (ssa_max_reg_num): Now unsigned.
(rename_block): REGNO now unsigned.
* stmt.c (expand_return): Bit positions unsigned HOST_WIDE_INT;
sizes now unsigned.
(all_cases_count): Just return -1 not -2.
COUNT, MINVAL, and LASTVAL now HOST_WIDE_INT.
Rework tests to use trees whenever possible.
Use host_integerp and tree_low_cst.
(mark_seen_cases): COUNT arg now HOST_WIDE_INT;
Likewise variable NEXT_NODE_OFFSET; XLO now unsigned.
(check_for_full_enumeration_handing): BYTES_NEEDED, I to HOST_WIDE_INT.
* stor-layout.c (mode_for_size): SIZE arg now unsigned.
(smallest_mode_for_size): Likewise.
(layout_decl): Simplify handing of a specified DECL_SIZE_UNIT.
KNOWN_ALIGN is now an alignment, so simplify code.
Don't turn off DECL_BIT_FIELD if field is BLKmode, but not type.
(start_record_layout): Renamed from new_record_layout_info.
Update to new fields.
(debug_rli, normalize_rli, rli_size_unit_so_far, rli_size_so_far):
New functions.
(place_union_field): Renamed from layout_union_field.
Update to use new fields in rli.
(place_field): Renamed from layout_field.
Major rewrite to use new fields in rli; pass alignment to layout_decl.
(finalize_record_size): Rework to use new fields in rli and handle
union.
(compute_record_mode): Rework to simplify and to use new DECL fields.
(finalize_type_size): Make rounding more consistent.
(finish_union_layout): Deleted.
(layout_type, case VOID_TYPE): Don't set TYPE_SIZE_UNIT either.
(layout_type, case RECORD_TYPE): Call new function names.
(initialize_sizetypes): Set TYPE_IS_SIZETYPE.
(set_sizetype): Set TYPE_IS_SIZETYPE earlier.
(get_best_mode): UNIT is now unsigned; remove casts.
* tree.c (bit_position): Compute from new fields.
(byte_position, int_byte_position): New functions.
(print_type_hash_statistics): Cast to remove warning.
(build_range_type): Use host_integerp and tree_low_cst to try to hash.
(build_index_type): Likewise; make subtype of sizetype.
(build_index_2_type): Pass sizetype to build_range_type.
(build_common_tree_nodes): Use size_int and bitsize_int to
initialize nodes; add bitsize_{zero,one,unit}_node.
* tree.h (DECL_FIELD_CONTEXT): Use FIELD_DECL_CHECK.
(DECL_BIT_FIELD_TYPE, DECL_QUALIFIER, DECL_FCONTEXT): Likewise.
(DECL_PACKED, DECL_BIT_FIELD): Likewise.
(DECL_FIELD_BITPOS): Deleted.
(DECL_FIELD_OFFSET, DECL_FIELD_BIT_OFFSET): New fields.
(DECL_RESULT, DECL_SAVED_INSNS): Use FUNCTION_DECL_CHECK.
(DECL_FRAME_SIZE, DECL_FUNCTION_CODE, DECL_NO_STATIC_CHAIN): Likewise.
(DECL_INLINE, DECL_BUILT_IN_NONANSI, DECL_IS_MALLOC): Likewise.
(DECL_BUILT_IN_CLASS, DECL_STATIC_CONSTRUCTOR): Likewise.
(DECL_STATIC_DESTRUCTOR, DECL_NO_CHECK_MEMORY_USAGE): Likewise.
(DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT, DECL_NO_LIMIT_STACK) Likewise.
(DECL_ORIGINAL_TYPE, TYPE_DECL_SUPPRESS_DEBUG): Use TYPE_DECL_CHECK.
(DECL_ARG_TYPE_AS_WRITEN, DECL_ARG_TYPE): Use PARM_DECL_CHECK.
(DECL_INCOMING_RTL, DECL_TRANSPARENT_UNION): Likewise.
(DECL_ALIGN): Adjust to new field in union.
(DECL_OFFSET_ALIGN): New field.
(DECL_ERROR_ISSUED, DECL_TOO_LATE): Use LABEL_DECL_CHECK.
(DECL_IN_TEXT_SECTION): Use VAR_DECL_CHECK.
(union tree_decl): Add struct for both aligns.
(enum tree_index): Add TI_BITSIZE_{ZERO,ONE,UNIT}.
(bitsize_zero_node, bitsize_one_node, bitsize_unit_node): Added.
(struct record_layout_info): Rework fields to have offset
alignment and byte and bit position.
(start_record_layout, place_field): Renamed from old names.
(rli_size_so_far, rli_size_unit_so_far, normalize_rli): New decls.
(byte_position, int_byte_position): Likewise.
(get_inner_reference): Change types of position and length.
* unroll.c (unroll_loop): New variable R; use for some loops.
MAX_LOCAL_REGNUM and MAXREGNUM now unsigned.
(calculate_giv_inc): Arg REGNO now unsigned.
(copy_loop_body): REGNO and SRC_REGNO now unsigned.
* varasm.c (assemble_variable): Clean up handling of size using
host_integerp and tree_low_cst.
(decode_addr_const): Use byte, not bit, position.
(output_constructor): bitpos and offsets are HOST_WIDE_INT;
use tree_low_cst and int_bit_position.
* objc/objc-act.c (build_ivar_list_initializer): Use byte_position.
* ch/actions.c (check_missing_cases): BYTES_NEEDED is HOST_WIDE_INT.
* ch/typeck.c (expand_constant_to_buffer): Use int_byte_position.
(extract_constant_from_buffer): Likewise.
* cp/class.c (build_vbase_pointer_fields): layout_field now
place_field.
(get_vfield_offset): Use byte_position.
(set_rtti_entry): Set OFFSET to ssizetype zero.
(get_binfo_offset_as_int): Deleted.
(dfs_record_base_offsets): Use tree_low_cst.
(dfs_search_base_offsets): Likewise.
(layout_nonempty_base_or_field): Reflect changes in RLI format
and call byte_position.
(layout_empty_base): Convert offset to ssizetype.
(build_base_field): use rli_size_unit_so_far.
(dfs_propagate_binfo_offsets): Do computation in proper type.
(layout_virtual_bases): Pass ssizetype to propagate_binfo_offsets.
(layout_class_type): Reflect changes in RLI names and fields.
(finish_struct_1): Set DECL_FIELD_OFFSET.
* cp/dump.c (dequeue_and_dump): Call bit_position.
* cp/expr.c (cplus_expand_constant): Use byte_position.
* cp/rtti.c (expand_class_desc): Use bitsize_one_node.
* cp/typeck.c (build_component_addr): Use byte_position and don't
special case for zero offset.
* f/com.c (ffecom_tree_canonize_ptr_): Use bitsize_zero_node.
(ffecom_tree_canonize_ref_): Likewise.
* java/class.c (make_field_value): Use byte_position.
* java/expr.c (JAVA_ARRAY_LENGTH_OFFSET): Use byte_position.
(java_array_data_offset): Likewise.
* java/java-tree.h (MAYBE_CREATE_TYPE_TYPE_LANG_SPECIFIC): Add case to
bzero call.
From-SVN: r32742
2000-03-25 19:34:13 +01:00
|
|
|
|
unsigned int i;
|
|
|
|
|
|
1992-02-28 11:23:25 +01:00
|
|
|
|
for (i = 0; i < nwords; i++)
|
|
|
|
|
if (! TEST_HARD_REG_BIT (reg_class_contents[(int) class],
|
|
|
|
|
regno + i))
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
if (i == nwords)
|
|
|
|
|
{
|
|
|
|
|
if (GET_CODE (real_out) == REG)
|
|
|
|
|
value = real_out;
|
|
|
|
|
else
|
alias.c: Change all uses of gen_rtx(FOO...) to gen_rtx_FOO...
* alias.c: Change all uses of gen_rtx(FOO...) to gen_rtx_FOO;
change gen_rtx(expr...) to gen_rtx_fmt_foo(expr...).
* caller-save.c, calls.c, combine.c, cse.c: Likewise.
* dwarf2out.c, except.c, explow.c, expmed.c, expr.c: Likewise.
* final.c, flow.c, function.c, genpeep.c, haifa-sched.c: Likewise.
* halfpic.c, integrate.c, jump.c, local-alloc.c, loop.c: Likewise.
* profile.c, recog.c, reg-stack.c, regclass.c, regmove.c: Likewise.
* reload.c, reload1.c, reorg.c, sched.c, stmt.c, stupid.c: Likewise.
* unroll.c, varasm.c: Likewise.
* config/alpha/alpha.c, config/alpha/alpha.md: Likewise.
From-SVN: r17357
1998-01-15 00:10:50 +01:00
|
|
|
|
value = gen_rtx_REG (outmode, regno);
|
1992-02-28 11:23:25 +01:00
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
1992-08-21 19:40:27 +02:00
|
|
|
|
*inloc = saved_rtx;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Consider using IN if OUT was not acceptable
|
|
|
|
|
or if OUT dies in this insn (like the quotient in a divmod insn).
|
|
|
|
|
We can't use IN unless it is dies in this insn,
|
|
|
|
|
which means we must know accurately which hard regs are live.
|
1997-03-25 20:27:59 +01:00
|
|
|
|
Also, the result can't go in IN if IN is used within OUT,
|
|
|
|
|
or if OUT is an earlyclobber and IN appears elsewhere in the insn. */
|
1992-02-28 11:23:25 +01:00
|
|
|
|
if (hard_regs_live_known
|
|
|
|
|
&& GET_CODE (in) == REG
|
|
|
|
|
&& REGNO (in) < FIRST_PSEUDO_REGISTER
|
|
|
|
|
&& (value == 0
|
|
|
|
|
|| find_reg_note (this_insn, REG_UNUSED, real_out))
|
|
|
|
|
&& find_reg_note (this_insn, REG_DEAD, real_in)
|
|
|
|
|
&& !fixed_regs[REGNO (in)]
|
1993-09-14 18:39:28 +02:00
|
|
|
|
&& HARD_REGNO_MODE_OK (REGNO (in),
|
|
|
|
|
/* The only case where out and real_out might
|
|
|
|
|
have different modes is where real_out
|
|
|
|
|
is a subreg, and in that case, out
|
|
|
|
|
has a real mode. */
|
|
|
|
|
(GET_MODE (out) != VOIDmode
|
|
|
|
|
? GET_MODE (out) : outmode)))
|
1992-02-28 11:23:25 +01:00
|
|
|
|
{
|
* Rework fields used to describe positions of bitfields and
modify sizes to be unsigned and use HOST_WIDE_INT.
* alias.c (reg_known_value_size): Now unsigned.
* c-typeck.c (build_unary_op, case ADDR_EXPR): Use byte_position.
(really_start_incremental_init): Use bitsize_zero_node.
(push_init_level, pop_init_level, output_init_element): Likewise.
Use bitsize_unit_node and bitsize_one_node.
(output_pending_init_elements, process_init_element): Likewise.
* combine.c (combine_max_regno, reg_sign_bit_copies): Now unsigned.
(make_extraction): Position and length HOST_WIDE_INT and unsigned
HOST_WIDE_INT, respectively.
(get_pos_from_mask): Passed in value is unsigned HOST_WIDE_INT.
(num_sign_bit_copies): Returns unsigned.
BITWIDTH now unsigned; rework arithmetic.
Remove recursive call from arg to MAX.
(combine_instructions, init_reg_last_arrays): NREGS now unsigned.
(setup_incoming_promotions, can_combine_p, try_combine, simplify_set):
REGNO now unsigned.
(set_nonzero_bit_and_sign_copies): NUM now unsigned.
(find_split_point, expand_compound_operation, make_extraction): LEN
now unsigned HOST_WIDE_INT, POS now HOST_WIDE_INT.
(make_field_assignment): Likewise.
(combine_simplify_rtx): Add cast.
(expand_compound_operation): MODEWIDTH now unsigned; rework arithmetic.
(force_to_mode): WIDTH now unsigned; add cast.
(if_then_else_cond): SIZE now unsigned.
(nonzero_bits): MODE_WIDTH, RESULT_WIDTH, and WIDTH now unsigned.
(extended_count): Now returns unsigned.
(simplify_shift_const): COUNT unsigned; arg is now INPUT_COUNT.
Add SIGNED_COUNT variable; MODE_WORDS and FIRST_COUNT now unsigned.
(simplify_comparison): MODE_WIDTH now unsigned.
(update_table_tick): REGNO and ENDREGNO now unsigned; new var R.
(mark_used_regs_combine): Likewise; rework arithmetic.
(record_value_for_reg): REGNO, ENDREGNO, and I now unsigned.
(record_dead_and_set_regs, reg_dead_at_p, distribute_notes): Likewise.
(record_promoted_value): REGNO now unsigned.
(get_last_value_validate): REGNO, ENDREGNO, and J now unsigned.
(get_last_value): REGNO now unsigned.
(use_crosses_set_p): REGNO and ENDREGNO now unsigned.
(reg_dead_regno, reg_dead_endregno): Now unsigned.
(remove_death): Arg REGNO now unsigned.
(move_deaths): REGNO, DEADREGNO, DEADEND, OUREND, and I now unsigned.
(reg_bitfield_target_p): REGNO, REGNO, ENDREGNO, and ENDTREGNO
now unsigned.
* convert.c (convert_to_integer): INPREC and OUTPREC now unsigned.
* cse.c (struct qty_table_elem): FIRST_REG and LAST_REG now unsigned.
(struct cse_reg_info): REGNO now unsigned.
(cached_regno): Now unsigned.
(REGNO_QTY_VALID_P): Add cast.
(make_new_qty, make_regs_eqv, delete_reg_eqiv): Regno args unsigned.
(remove_invalid_regs): Likewise.
(remove_invalid_subreg_refs): Likewise; arg WORD also unsigned
as are variables END and I.
(get_cse_reg_info, insert): Likewise.
(mention_regs, invalidate_for_call): REGNO, ENDREGNO, and I unsigned.
(canon_hash): Likewise.
(insert_regs, lookup_for_remove): REGNO now unsigned.
(invalidate): REGNO, ENDREGNO, TREGNO, and TENDREGNO now unsigned.
New variable RN.
* dbxout.c (dbxout_parms, dbxout_reg_parms): Don't check for REGNO < 0.
* dwarf2out.c (dwarf2ou_frame_debug_expr): Remove cast.
* emit-rtl.c (subreg_realpart_p): Add cast.
(operand_subword): Arg I is now unsigned as is var PARTWORDS.
(operand_subword_force): Arg I is now unsigned.
* except.c (eh_regs): Variable I is now unsigned.
* explow.c (hard_function_value): BYTES is unsigned HOST_WIDE_INT.
* expmed.c (store_fixed_bit_field): Position is HOST_WIDE_INT;
length is unsigned HOST_WIDE_INT; likewise for internal variables.
(store_split_bit_field, extract_fixed_bit_field): Likewise.
(extract_split_bit_field, store_bit_field, extract_bit_field):
Likewise.
* expr.c (store_constructor_fields, store_constructor, store_field):
Positions are HOST_WIDE_INT and lengths are unsigned HOST_WIDE_INT.
(expand_assignment, expand_expr, expand_expr_unaligned): Likewise.
(do_jump): Likewise.
(move_by_pieces, move_by_pieces_ninsns, clear_by_pieces):
MAX_SIZE is now unsigned.
(emit_group_load): BYTEPOS is HOST_WIDE_INT; BYTELEN is unsigned.
(emit_group_store): Likewise.
(emit_move_insn): I now unsigned.
(store_constructor): Use host_integerp, tree_low_cst, and
bitsize_unit_node.
(get_inner_reference): Return bitpos and bitsize as HOST_WIDE_INT.
Rework all calculations to use trees and new fields.
* expr.h (promoted_input_arg): Regno now unsigned.
(store_bit_field, extract_bit_field): Adjust types of pos and size.
(mark_seen_cases): Arg is HOST_WIDE_INT.
* flow.c (verify_wide_reg_1): REGNO now unsigned.
* fold-const.c (decode_field_reference): Size and pos HOST_WIDE_INT;
precisions and alignments are unsigned.
(optimize_bit_field_compare, fold_truthop): Likewise.
(int_const_binop): Adjust threshold for size_int_type_wide call.
(fold_convert): Likewise.
(size_int_type_wide): Make table larger and fix thinko that only
had half of table used.
(all_ones_mask_p, fold): Precisions are unsigned.
* function.c (put_reg_info_stack): REGNO is unsigned.
(instantiate_decl): Size is HOST_WIDE_INT.
(instantiate_virtual_regs): I is unsigned.
(assign_parms): REGNO, REGNOI, and REGNOR are unsigned.
(promoted_input_arg): REGNO is unsigned.
* function.h (struct function): x_max_parm_reg is now unsigned.
* gcse.c (max_gcse_regno): Now unsigned.
(struct null_pointer_info): min_reg and max_reg now unsigned.
(lookup_set, next_set): REGNO arg now unsigned.
(compute_hash_table): REGNO and I now unsigned.
(handle_avail_expr): regnum_for_replacing now unsigned.
(cprop_insn): REGNO now unsigned.
(delete_null_pointer_checks_1): BLOCK_REG now pointer to unsigned.
* ggc-common.c (ggc_mark_tree_children, case FIELD_DECL): New case.
* global.c (set_preference): SRC_REGNO, DEST_REGNO, and I now unsigned.
* hard-reg-set.h (reg_class_size): Now unsigned.
* integrate.c (mark_stores): LAST_REG and I now unsigned; new UREGNO.
* jump.c (mark_modified_reg): I now unsigned; add cast.
(rtx_equal_for_thread_p): Add cast.
* loop.c (max_reg_before_loop): Now unsigned.
(struct_movable): REGNO now unsigned.
(try_copy_prop): REGNO arg unsigned.
(regs_match_p): XN and YN now unsigned.
(consec_sets_invariant_p, maybe_eliminate_biv): REGNO now unsigned.
(strength_reduce): Likewise; NREGS also unsigned.
(first_increment_giv, last_increment_giv unsigned): Now unsigned.
* loop.h (struct iv_class): REGNO now unsigned.
(max_reg_before_loop, first_increment_giv, last_increment_giv):
Now unsigned.
* machmode.h (mode_size, mode_unit_size): Now unsigned.
(mode_for_size, smallest_mode_for_size): Pass size as unsigned.
* optabs.c (expand_binop): I and NWORDS now unsigned.
(expand_unop): I now unsigned.
* print-tree.c (print_node): Don't print DECL_FIELD_BITPOS, but do
print DECL_FIELD_OFFSET and DECL_FIELD_BIT_OFFSET.
* real.c (significand_size): Now returns unsigned.
* real.h (significand_size): Likewise.
* regclass.c (reg_class_size): Now unsigned.
(choose_hard_reg_mode): Both operands now unsigned.
(record_reg_classes): REGNO and NR now unsigned.
(reg_scan): NREGS now unsigned.
(reg_scan_update): old_max_regno now unsigned.
(reg_scan_mark_refs): Arg MIN_REGNO and var REGNO now unsigned.
* reload.c (find_valid_class): BEST_SIZE now unsigned.
(find_dummy_reload): REGNO, NWORDS, and I now unsigned.
(hard_reg_set_here_p): Args BEG_REGNO and END_REGNO now unsigned.
Likewise for variable R.
(refers_to_regno_for_reload_p): Args REGNO and END_REGNO now unsigned,
as are variables INNER_REGNO and INNER_ENDREGNO; add new variable R.
(find_equiv_reg): Add casts.
(regno_clobbered_p): Arg REGNO now unsigned.
* reload.h (struct reload): NREGS now unsigned.
(refers_to_regno_for_reload_p): Regno args are unsigned.
(regno_clobbered_p): Likewise.
* reload1.c (reg_max_ref_width, spill_stack_slot_width): Now unsigned.
(compute_use_by_pseudos): REGNO now unsigned.
(find_reg): I and J now unsigned, new variable K, and change loop
variables accordingly; THIS_NREGS now unsigned.
(alter_reg): INHERENT_SIZE and TOTAL_SIZE now unsigned.
(spill_hard_reg): REGNO arg now unsigned; add casts.
(forget_old_reloads_1): REGNO, NR, and I now unsigned.
(mark_reload_reg_in_use): Arg REGNO and vars NREGS and I now unsigned.
(clear_reload_reg_in_use): Arg REGNO and vars NREGS, START_REGNO,
END_REGNO, CONFLICT_START, and CONFLICT_END now unsigned.
(reload_reg_free_p, reload_reg_reaches_end_p): Arg REGNO now unsigned.
(choose_reload_regs): MAX_GROUP_SIZE now unsigned.
(emit_reload_insns): REGNO now unsigned.
(reload_cse_move2add): Add cast.
(move2add_note_store): REGNO and I now unsigned; new variable ENDREGNO
and rework loop.
* resource.c (mark_referenced_resources, mark_set_resources): New
variable R; REGNO and LAST_REGNO now unsigned.
(mark_target_live_regs): J and REGNO now unsigned.
* rtl.c (mode_size, mode_unit_size): Now unsigned.
* rtl.h (union rtunion_def): New field rtuint.
(XCUINT): New macro.
(ADDRESSOF_REGNO, REGNO, SUBREG_WORD): New XCUINT.
(operand_subword, operand_subword_force): Word number is unsigned.
(choose_hard_reg_mode): Operands are unsigned.
(refers_to-regno_p, dead_or_set_regno_p): Regno arg is unsigned.
(find_regno_note, find_regno_fusage, replace_regs): Likewise.
(regno_use_in, combine_instructions, remove_death): Likewise.
(reg_scan, reg_scan_update): Likewise.
(extended_count): Return is unsigned.
* rtlanal.c (refers_to_regno_p): Args REGNO and ENDREGNO and vars I,
INNER_REGNO, and INNER_ENDREGNO now unsigned; new variable X_REGNO.
(reg_overlap_mentioned_p): REGNO and ENDREGNO now unsigned.
(reg_set_last_first_regno, reg_set_last_last_regno): Now unsigned.
(reg_reg_last_1): FIRS and LAST now unsigned.
(dead_or_set_p): REGNO, LAST_REGNO, and I now unsigned.
(dead_or_set_regno_p): Arg TEST_REGNO and vars REGNO and ENDREGNO
now unsigned.
(find_regno_note, regno_use_in): Arg REGNO now unsigned.
(find_regno_fusage): Likewise; also var REGNOTE now unsigned.
(find_reg_fusage): Variables REGNO, END_REGNO, and I now unsigned.
(replace_regs): Arg NREGS now unsigned.
* sdbout.c (sdbout_parms, sdbout_reg_parms): Don't check REGNO < 0.
* simplify-rtx.c (simplify_unary_operation): WIDTH now unsigned.
(simplify_binary_operation): Likewise.
(cselib_invalidate_regno): Arg REGNO and variables ENDREGNO, I, and
THIS_LAST now unsigned.
(cselib_record_set): Add cast.
* ssa.c (ssa_max_reg_num): Now unsigned.
(rename_block): REGNO now unsigned.
* stmt.c (expand_return): Bit positions unsigned HOST_WIDE_INT;
sizes now unsigned.
(all_cases_count): Just return -1 not -2.
COUNT, MINVAL, and LASTVAL now HOST_WIDE_INT.
Rework tests to use trees whenever possible.
Use host_integerp and tree_low_cst.
(mark_seen_cases): COUNT arg now HOST_WIDE_INT;
Likewise variable NEXT_NODE_OFFSET; XLO now unsigned.
(check_for_full_enumeration_handing): BYTES_NEEDED, I to HOST_WIDE_INT.
* stor-layout.c (mode_for_size): SIZE arg now unsigned.
(smallest_mode_for_size): Likewise.
(layout_decl): Simplify handing of a specified DECL_SIZE_UNIT.
KNOWN_ALIGN is now an alignment, so simplify code.
Don't turn off DECL_BIT_FIELD if field is BLKmode, but not type.
(start_record_layout): Renamed from new_record_layout_info.
Update to new fields.
(debug_rli, normalize_rli, rli_size_unit_so_far, rli_size_so_far):
New functions.
(place_union_field): Renamed from layout_union_field.
Update to use new fields in rli.
(place_field): Renamed from layout_field.
Major rewrite to use new fields in rli; pass alignment to layout_decl.
(finalize_record_size): Rework to use new fields in rli and handle
union.
(compute_record_mode): Rework to simplify and to use new DECL fields.
(finalize_type_size): Make rounding more consistent.
(finish_union_layout): Deleted.
(layout_type, case VOID_TYPE): Don't set TYPE_SIZE_UNIT either.
(layout_type, case RECORD_TYPE): Call new function names.
(initialize_sizetypes): Set TYPE_IS_SIZETYPE.
(set_sizetype): Set TYPE_IS_SIZETYPE earlier.
(get_best_mode): UNIT is now unsigned; remove casts.
* tree.c (bit_position): Compute from new fields.
(byte_position, int_byte_position): New functions.
(print_type_hash_statistics): Cast to remove warning.
(build_range_type): Use host_integerp and tree_low_cst to try to hash.
(build_index_type): Likewise; make subtype of sizetype.
(build_index_2_type): Pass sizetype to build_range_type.
(build_common_tree_nodes): Use size_int and bitsize_int to
initialize nodes; add bitsize_{zero,one,unit}_node.
* tree.h (DECL_FIELD_CONTEXT): Use FIELD_DECL_CHECK.
(DECL_BIT_FIELD_TYPE, DECL_QUALIFIER, DECL_FCONTEXT): Likewise.
(DECL_PACKED, DECL_BIT_FIELD): Likewise.
(DECL_FIELD_BITPOS): Deleted.
(DECL_FIELD_OFFSET, DECL_FIELD_BIT_OFFSET): New fields.
(DECL_RESULT, DECL_SAVED_INSNS): Use FUNCTION_DECL_CHECK.
(DECL_FRAME_SIZE, DECL_FUNCTION_CODE, DECL_NO_STATIC_CHAIN): Likewise.
(DECL_INLINE, DECL_BUILT_IN_NONANSI, DECL_IS_MALLOC): Likewise.
(DECL_BUILT_IN_CLASS, DECL_STATIC_CONSTRUCTOR): Likewise.
(DECL_STATIC_DESTRUCTOR, DECL_NO_CHECK_MEMORY_USAGE): Likewise.
(DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT, DECL_NO_LIMIT_STACK) Likewise.
(DECL_ORIGINAL_TYPE, TYPE_DECL_SUPPRESS_DEBUG): Use TYPE_DECL_CHECK.
(DECL_ARG_TYPE_AS_WRITEN, DECL_ARG_TYPE): Use PARM_DECL_CHECK.
(DECL_INCOMING_RTL, DECL_TRANSPARENT_UNION): Likewise.
(DECL_ALIGN): Adjust to new field in union.
(DECL_OFFSET_ALIGN): New field.
(DECL_ERROR_ISSUED, DECL_TOO_LATE): Use LABEL_DECL_CHECK.
(DECL_IN_TEXT_SECTION): Use VAR_DECL_CHECK.
(union tree_decl): Add struct for both aligns.
(enum tree_index): Add TI_BITSIZE_{ZERO,ONE,UNIT}.
(bitsize_zero_node, bitsize_one_node, bitsize_unit_node): Added.
(struct record_layout_info): Rework fields to have offset
alignment and byte and bit position.
(start_record_layout, place_field): Renamed from old names.
(rli_size_so_far, rli_size_unit_so_far, normalize_rli): New decls.
(byte_position, int_byte_position): Likewise.
(get_inner_reference): Change types of position and length.
* unroll.c (unroll_loop): New variable R; use for some loops.
MAX_LOCAL_REGNUM and MAXREGNUM now unsigned.
(calculate_giv_inc): Arg REGNO now unsigned.
(copy_loop_body): REGNO and SRC_REGNO now unsigned.
* varasm.c (assemble_variable): Clean up handling of size using
host_integerp and tree_low_cst.
(decode_addr_const): Use byte, not bit, position.
(output_constructor): bitpos and offsets are HOST_WIDE_INT;
use tree_low_cst and int_bit_position.
* objc/objc-act.c (build_ivar_list_initializer): Use byte_position.
* ch/actions.c (check_missing_cases): BYTES_NEEDED is HOST_WIDE_INT.
* ch/typeck.c (expand_constant_to_buffer): Use int_byte_position.
(extract_constant_from_buffer): Likewise.
* cp/class.c (build_vbase_pointer_fields): layout_field now
place_field.
(get_vfield_offset): Use byte_position.
(set_rtti_entry): Set OFFSET to ssizetype zero.
(get_binfo_offset_as_int): Deleted.
(dfs_record_base_offsets): Use tree_low_cst.
(dfs_search_base_offsets): Likewise.
(layout_nonempty_base_or_field): Reflect changes in RLI format
and call byte_position.
(layout_empty_base): Convert offset to ssizetype.
(build_base_field): use rli_size_unit_so_far.
(dfs_propagate_binfo_offsets): Do computation in proper type.
(layout_virtual_bases): Pass ssizetype to propagate_binfo_offsets.
(layout_class_type): Reflect changes in RLI names and fields.
(finish_struct_1): Set DECL_FIELD_OFFSET.
* cp/dump.c (dequeue_and_dump): Call bit_position.
* cp/expr.c (cplus_expand_constant): Use byte_position.
* cp/rtti.c (expand_class_desc): Use bitsize_one_node.
* cp/typeck.c (build_component_addr): Use byte_position and don't
special case for zero offset.
* f/com.c (ffecom_tree_canonize_ptr_): Use bitsize_zero_node.
(ffecom_tree_canonize_ref_): Likewise.
* java/class.c (make_field_value): Use byte_position.
* java/expr.c (JAVA_ARRAY_LENGTH_OFFSET): Use byte_position.
(java_array_data_offset): Likewise.
* java/java-tree.h (MAYBE_CREATE_TYPE_TYPE_LANG_SPECIFIC): Add case to
bzero call.
From-SVN: r32742
2000-03-25 19:34:13 +01:00
|
|
|
|
unsigned int regno = REGNO (in) + in_offset;
|
|
|
|
|
unsigned int nwords = HARD_REGNO_NREGS (regno, inmode);
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
2002-01-10 01:56:56 +01:00
|
|
|
|
if (! refers_to_regno_for_reload_p (regno, regno + nwords, out, (rtx*) 0)
|
1992-02-28 11:23:25 +01:00
|
|
|
|
&& ! hard_reg_set_here_p (regno, regno + nwords,
|
1997-03-25 20:27:59 +01:00
|
|
|
|
PATTERN (this_insn))
|
|
|
|
|
&& (! earlyclobber
|
|
|
|
|
|| ! refers_to_regno_for_reload_p (regno, regno + nwords,
|
|
|
|
|
PATTERN (this_insn), inloc)))
|
1992-02-28 11:23:25 +01:00
|
|
|
|
{
|
* Rework fields used to describe positions of bitfields and
modify sizes to be unsigned and use HOST_WIDE_INT.
* alias.c (reg_known_value_size): Now unsigned.
* c-typeck.c (build_unary_op, case ADDR_EXPR): Use byte_position.
(really_start_incremental_init): Use bitsize_zero_node.
(push_init_level, pop_init_level, output_init_element): Likewise.
Use bitsize_unit_node and bitsize_one_node.
(output_pending_init_elements, process_init_element): Likewise.
* combine.c (combine_max_regno, reg_sign_bit_copies): Now unsigned.
(make_extraction): Position and length HOST_WIDE_INT and unsigned
HOST_WIDE_INT, respectively.
(get_pos_from_mask): Passed in value is unsigned HOST_WIDE_INT.
(num_sign_bit_copies): Returns unsigned.
BITWIDTH now unsigned; rework arithmetic.
Remove recursive call from arg to MAX.
(combine_instructions, init_reg_last_arrays): NREGS now unsigned.
(setup_incoming_promotions, can_combine_p, try_combine, simplify_set):
REGNO now unsigned.
(set_nonzero_bit_and_sign_copies): NUM now unsigned.
(find_split_point, expand_compound_operation, make_extraction): LEN
now unsigned HOST_WIDE_INT, POS now HOST_WIDE_INT.
(make_field_assignment): Likewise.
(combine_simplify_rtx): Add cast.
(expand_compound_operation): MODEWIDTH now unsigned; rework arithmetic.
(force_to_mode): WIDTH now unsigned; add cast.
(if_then_else_cond): SIZE now unsigned.
(nonzero_bits): MODE_WIDTH, RESULT_WIDTH, and WIDTH now unsigned.
(extended_count): Now returns unsigned.
(simplify_shift_const): COUNT unsigned; arg is now INPUT_COUNT.
Add SIGNED_COUNT variable; MODE_WORDS and FIRST_COUNT now unsigned.
(simplify_comparison): MODE_WIDTH now unsigned.
(update_table_tick): REGNO and ENDREGNO now unsigned; new var R.
(mark_used_regs_combine): Likewise; rework arithmetic.
(record_value_for_reg): REGNO, ENDREGNO, and I now unsigned.
(record_dead_and_set_regs, reg_dead_at_p, distribute_notes): Likewise.
(record_promoted_value): REGNO now unsigned.
(get_last_value_validate): REGNO, ENDREGNO, and J now unsigned.
(get_last_value): REGNO now unsigned.
(use_crosses_set_p): REGNO and ENDREGNO now unsigned.
(reg_dead_regno, reg_dead_endregno): Now unsigned.
(remove_death): Arg REGNO now unsigned.
(move_deaths): REGNO, DEADREGNO, DEADEND, OUREND, and I now unsigned.
(reg_bitfield_target_p): REGNO, REGNO, ENDREGNO, and ENDTREGNO
now unsigned.
* convert.c (convert_to_integer): INPREC and OUTPREC now unsigned.
* cse.c (struct qty_table_elem): FIRST_REG and LAST_REG now unsigned.
(struct cse_reg_info): REGNO now unsigned.
(cached_regno): Now unsigned.
(REGNO_QTY_VALID_P): Add cast.
(make_new_qty, make_regs_eqv, delete_reg_eqiv): Regno args unsigned.
(remove_invalid_regs): Likewise.
(remove_invalid_subreg_refs): Likewise; arg WORD also unsigned
as are variables END and I.
(get_cse_reg_info, insert): Likewise.
(mention_regs, invalidate_for_call): REGNO, ENDREGNO, and I unsigned.
(canon_hash): Likewise.
(insert_regs, lookup_for_remove): REGNO now unsigned.
(invalidate): REGNO, ENDREGNO, TREGNO, and TENDREGNO now unsigned.
New variable RN.
* dbxout.c (dbxout_parms, dbxout_reg_parms): Don't check for REGNO < 0.
* dwarf2out.c (dwarf2ou_frame_debug_expr): Remove cast.
* emit-rtl.c (subreg_realpart_p): Add cast.
(operand_subword): Arg I is now unsigned as is var PARTWORDS.
(operand_subword_force): Arg I is now unsigned.
* except.c (eh_regs): Variable I is now unsigned.
* explow.c (hard_function_value): BYTES is unsigned HOST_WIDE_INT.
* expmed.c (store_fixed_bit_field): Position is HOST_WIDE_INT;
length is unsigned HOST_WIDE_INT; likewise for internal variables.
(store_split_bit_field, extract_fixed_bit_field): Likewise.
(extract_split_bit_field, store_bit_field, extract_bit_field):
Likewise.
* expr.c (store_constructor_fields, store_constructor, store_field):
Positions are HOST_WIDE_INT and lengths are unsigned HOST_WIDE_INT.
(expand_assignment, expand_expr, expand_expr_unaligned): Likewise.
(do_jump): Likewise.
(move_by_pieces, move_by_pieces_ninsns, clear_by_pieces):
MAX_SIZE is now unsigned.
(emit_group_load): BYTEPOS is HOST_WIDE_INT; BYTELEN is unsigned.
(emit_group_store): Likewise.
(emit_move_insn): I now unsigned.
(store_constructor): Use host_integerp, tree_low_cst, and
bitsize_unit_node.
(get_inner_reference): Return bitpos and bitsize as HOST_WIDE_INT.
Rework all calculations to use trees and new fields.
* expr.h (promoted_input_arg): Regno now unsigned.
(store_bit_field, extract_bit_field): Adjust types of pos and size.
(mark_seen_cases): Arg is HOST_WIDE_INT.
* flow.c (verify_wide_reg_1): REGNO now unsigned.
* fold-const.c (decode_field_reference): Size and pos HOST_WIDE_INT;
precisions and alignments are unsigned.
(optimize_bit_field_compare, fold_truthop): Likewise.
(int_const_binop): Adjust threshold for size_int_type_wide call.
(fold_convert): Likewise.
(size_int_type_wide): Make table larger and fix thinko that only
had half of table used.
(all_ones_mask_p, fold): Precisions are unsigned.
* function.c (put_reg_info_stack): REGNO is unsigned.
(instantiate_decl): Size is HOST_WIDE_INT.
(instantiate_virtual_regs): I is unsigned.
(assign_parms): REGNO, REGNOI, and REGNOR are unsigned.
(promoted_input_arg): REGNO is unsigned.
* function.h (struct function): x_max_parm_reg is now unsigned.
* gcse.c (max_gcse_regno): Now unsigned.
(struct null_pointer_info): min_reg and max_reg now unsigned.
(lookup_set, next_set): REGNO arg now unsigned.
(compute_hash_table): REGNO and I now unsigned.
(handle_avail_expr): regnum_for_replacing now unsigned.
(cprop_insn): REGNO now unsigned.
(delete_null_pointer_checks_1): BLOCK_REG now pointer to unsigned.
* ggc-common.c (ggc_mark_tree_children, case FIELD_DECL): New case.
* global.c (set_preference): SRC_REGNO, DEST_REGNO, and I now unsigned.
* hard-reg-set.h (reg_class_size): Now unsigned.
* integrate.c (mark_stores): LAST_REG and I now unsigned; new UREGNO.
* jump.c (mark_modified_reg): I now unsigned; add cast.
(rtx_equal_for_thread_p): Add cast.
* loop.c (max_reg_before_loop): Now unsigned.
(struct_movable): REGNO now unsigned.
(try_copy_prop): REGNO arg unsigned.
(regs_match_p): XN and YN now unsigned.
(consec_sets_invariant_p, maybe_eliminate_biv): REGNO now unsigned.
(strength_reduce): Likewise; NREGS also unsigned.
(first_increment_giv, last_increment_giv unsigned): Now unsigned.
* loop.h (struct iv_class): REGNO now unsigned.
(max_reg_before_loop, first_increment_giv, last_increment_giv):
Now unsigned.
* machmode.h (mode_size, mode_unit_size): Now unsigned.
(mode_for_size, smallest_mode_for_size): Pass size as unsigned.
* optabs.c (expand_binop): I and NWORDS now unsigned.
(expand_unop): I now unsigned.
* print-tree.c (print_node): Don't print DECL_FIELD_BITPOS, but do
print DECL_FIELD_OFFSET and DECL_FIELD_BIT_OFFSET.
* real.c (significand_size): Now returns unsigned.
* real.h (significand_size): Likewise.
* regclass.c (reg_class_size): Now unsigned.
(choose_hard_reg_mode): Both operands now unsigned.
(record_reg_classes): REGNO and NR now unsigned.
(reg_scan): NREGS now unsigned.
(reg_scan_update): old_max_regno now unsigned.
(reg_scan_mark_refs): Arg MIN_REGNO and var REGNO now unsigned.
* reload.c (find_valid_class): BEST_SIZE now unsigned.
(find_dummy_reload): REGNO, NWORDS, and I now unsigned.
(hard_reg_set_here_p): Args BEG_REGNO and END_REGNO now unsigned.
Likewise for variable R.
(refers_to_regno_for_reload_p): Args REGNO and END_REGNO now unsigned,
as are variables INNER_REGNO and INNER_ENDREGNO; add new variable R.
(find_equiv_reg): Add casts.
(regno_clobbered_p): Arg REGNO now unsigned.
* reload.h (struct reload): NREGS now unsigned.
(refers_to_regno_for_reload_p): Regno args are unsigned.
(regno_clobbered_p): Likewise.
* reload1.c (reg_max_ref_width, spill_stack_slot_width): Now unsigned.
(compute_use_by_pseudos): REGNO now unsigned.
(find_reg): I and J now unsigned, new variable K, and change loop
variables accordingly; THIS_NREGS now unsigned.
(alter_reg): INHERENT_SIZE and TOTAL_SIZE now unsigned.
(spill_hard_reg): REGNO arg now unsigned; add casts.
(forget_old_reloads_1): REGNO, NR, and I now unsigned.
(mark_reload_reg_in_use): Arg REGNO and vars NREGS and I now unsigned.
(clear_reload_reg_in_use): Arg REGNO and vars NREGS, START_REGNO,
END_REGNO, CONFLICT_START, and CONFLICT_END now unsigned.
(reload_reg_free_p, reload_reg_reaches_end_p): Arg REGNO now unsigned.
(choose_reload_regs): MAX_GROUP_SIZE now unsigned.
(emit_reload_insns): REGNO now unsigned.
(reload_cse_move2add): Add cast.
(move2add_note_store): REGNO and I now unsigned; new variable ENDREGNO
and rework loop.
* resource.c (mark_referenced_resources, mark_set_resources): New
variable R; REGNO and LAST_REGNO now unsigned.
(mark_target_live_regs): J and REGNO now unsigned.
* rtl.c (mode_size, mode_unit_size): Now unsigned.
* rtl.h (union rtunion_def): New field rtuint.
(XCUINT): New macro.
(ADDRESSOF_REGNO, REGNO, SUBREG_WORD): New XCUINT.
(operand_subword, operand_subword_force): Word number is unsigned.
(choose_hard_reg_mode): Operands are unsigned.
(refers_to-regno_p, dead_or_set_regno_p): Regno arg is unsigned.
(find_regno_note, find_regno_fusage, replace_regs): Likewise.
(regno_use_in, combine_instructions, remove_death): Likewise.
(reg_scan, reg_scan_update): Likewise.
(extended_count): Return is unsigned.
* rtlanal.c (refers_to_regno_p): Args REGNO and ENDREGNO and vars I,
INNER_REGNO, and INNER_ENDREGNO now unsigned; new variable X_REGNO.
(reg_overlap_mentioned_p): REGNO and ENDREGNO now unsigned.
(reg_set_last_first_regno, reg_set_last_last_regno): Now unsigned.
(reg_reg_last_1): FIRS and LAST now unsigned.
(dead_or_set_p): REGNO, LAST_REGNO, and I now unsigned.
(dead_or_set_regno_p): Arg TEST_REGNO and vars REGNO and ENDREGNO
now unsigned.
(find_regno_note, regno_use_in): Arg REGNO now unsigned.
(find_regno_fusage): Likewise; also var REGNOTE now unsigned.
(find_reg_fusage): Variables REGNO, END_REGNO, and I now unsigned.
(replace_regs): Arg NREGS now unsigned.
* sdbout.c (sdbout_parms, sdbout_reg_parms): Don't check REGNO < 0.
* simplify-rtx.c (simplify_unary_operation): WIDTH now unsigned.
(simplify_binary_operation): Likewise.
(cselib_invalidate_regno): Arg REGNO and variables ENDREGNO, I, and
THIS_LAST now unsigned.
(cselib_record_set): Add cast.
* ssa.c (ssa_max_reg_num): Now unsigned.
(rename_block): REGNO now unsigned.
* stmt.c (expand_return): Bit positions unsigned HOST_WIDE_INT;
sizes now unsigned.
(all_cases_count): Just return -1 not -2.
COUNT, MINVAL, and LASTVAL now HOST_WIDE_INT.
Rework tests to use trees whenever possible.
Use host_integerp and tree_low_cst.
(mark_seen_cases): COUNT arg now HOST_WIDE_INT;
Likewise variable NEXT_NODE_OFFSET; XLO now unsigned.
(check_for_full_enumeration_handing): BYTES_NEEDED, I to HOST_WIDE_INT.
* stor-layout.c (mode_for_size): SIZE arg now unsigned.
(smallest_mode_for_size): Likewise.
(layout_decl): Simplify handing of a specified DECL_SIZE_UNIT.
KNOWN_ALIGN is now an alignment, so simplify code.
Don't turn off DECL_BIT_FIELD if field is BLKmode, but not type.
(start_record_layout): Renamed from new_record_layout_info.
Update to new fields.
(debug_rli, normalize_rli, rli_size_unit_so_far, rli_size_so_far):
New functions.
(place_union_field): Renamed from layout_union_field.
Update to use new fields in rli.
(place_field): Renamed from layout_field.
Major rewrite to use new fields in rli; pass alignment to layout_decl.
(finalize_record_size): Rework to use new fields in rli and handle
union.
(compute_record_mode): Rework to simplify and to use new DECL fields.
(finalize_type_size): Make rounding more consistent.
(finish_union_layout): Deleted.
(layout_type, case VOID_TYPE): Don't set TYPE_SIZE_UNIT either.
(layout_type, case RECORD_TYPE): Call new function names.
(initialize_sizetypes): Set TYPE_IS_SIZETYPE.
(set_sizetype): Set TYPE_IS_SIZETYPE earlier.
(get_best_mode): UNIT is now unsigned; remove casts.
* tree.c (bit_position): Compute from new fields.
(byte_position, int_byte_position): New functions.
(print_type_hash_statistics): Cast to remove warning.
(build_range_type): Use host_integerp and tree_low_cst to try to hash.
(build_index_type): Likewise; make subtype of sizetype.
(build_index_2_type): Pass sizetype to build_range_type.
(build_common_tree_nodes): Use size_int and bitsize_int to
initialize nodes; add bitsize_{zero,one,unit}_node.
* tree.h (DECL_FIELD_CONTEXT): Use FIELD_DECL_CHECK.
(DECL_BIT_FIELD_TYPE, DECL_QUALIFIER, DECL_FCONTEXT): Likewise.
(DECL_PACKED, DECL_BIT_FIELD): Likewise.
(DECL_FIELD_BITPOS): Deleted.
(DECL_FIELD_OFFSET, DECL_FIELD_BIT_OFFSET): New fields.
(DECL_RESULT, DECL_SAVED_INSNS): Use FUNCTION_DECL_CHECK.
(DECL_FRAME_SIZE, DECL_FUNCTION_CODE, DECL_NO_STATIC_CHAIN): Likewise.
(DECL_INLINE, DECL_BUILT_IN_NONANSI, DECL_IS_MALLOC): Likewise.
(DECL_BUILT_IN_CLASS, DECL_STATIC_CONSTRUCTOR): Likewise.
(DECL_STATIC_DESTRUCTOR, DECL_NO_CHECK_MEMORY_USAGE): Likewise.
(DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT, DECL_NO_LIMIT_STACK) Likewise.
(DECL_ORIGINAL_TYPE, TYPE_DECL_SUPPRESS_DEBUG): Use TYPE_DECL_CHECK.
(DECL_ARG_TYPE_AS_WRITEN, DECL_ARG_TYPE): Use PARM_DECL_CHECK.
(DECL_INCOMING_RTL, DECL_TRANSPARENT_UNION): Likewise.
(DECL_ALIGN): Adjust to new field in union.
(DECL_OFFSET_ALIGN): New field.
(DECL_ERROR_ISSUED, DECL_TOO_LATE): Use LABEL_DECL_CHECK.
(DECL_IN_TEXT_SECTION): Use VAR_DECL_CHECK.
(union tree_decl): Add struct for both aligns.
(enum tree_index): Add TI_BITSIZE_{ZERO,ONE,UNIT}.
(bitsize_zero_node, bitsize_one_node, bitsize_unit_node): Added.
(struct record_layout_info): Rework fields to have offset
alignment and byte and bit position.
(start_record_layout, place_field): Renamed from old names.
(rli_size_so_far, rli_size_unit_so_far, normalize_rli): New decls.
(byte_position, int_byte_position): Likewise.
(get_inner_reference): Change types of position and length.
* unroll.c (unroll_loop): New variable R; use for some loops.
MAX_LOCAL_REGNUM and MAXREGNUM now unsigned.
(calculate_giv_inc): Arg REGNO now unsigned.
(copy_loop_body): REGNO and SRC_REGNO now unsigned.
* varasm.c (assemble_variable): Clean up handling of size using
host_integerp and tree_low_cst.
(decode_addr_const): Use byte, not bit, position.
(output_constructor): bitpos and offsets are HOST_WIDE_INT;
use tree_low_cst and int_bit_position.
* objc/objc-act.c (build_ivar_list_initializer): Use byte_position.
* ch/actions.c (check_missing_cases): BYTES_NEEDED is HOST_WIDE_INT.
* ch/typeck.c (expand_constant_to_buffer): Use int_byte_position.
(extract_constant_from_buffer): Likewise.
* cp/class.c (build_vbase_pointer_fields): layout_field now
place_field.
(get_vfield_offset): Use byte_position.
(set_rtti_entry): Set OFFSET to ssizetype zero.
(get_binfo_offset_as_int): Deleted.
(dfs_record_base_offsets): Use tree_low_cst.
(dfs_search_base_offsets): Likewise.
(layout_nonempty_base_or_field): Reflect changes in RLI format
and call byte_position.
(layout_empty_base): Convert offset to ssizetype.
(build_base_field): use rli_size_unit_so_far.
(dfs_propagate_binfo_offsets): Do computation in proper type.
(layout_virtual_bases): Pass ssizetype to propagate_binfo_offsets.
(layout_class_type): Reflect changes in RLI names and fields.
(finish_struct_1): Set DECL_FIELD_OFFSET.
* cp/dump.c (dequeue_and_dump): Call bit_position.
* cp/expr.c (cplus_expand_constant): Use byte_position.
* cp/rtti.c (expand_class_desc): Use bitsize_one_node.
* cp/typeck.c (build_component_addr): Use byte_position and don't
special case for zero offset.
* f/com.c (ffecom_tree_canonize_ptr_): Use bitsize_zero_node.
(ffecom_tree_canonize_ref_): Likewise.
* java/class.c (make_field_value): Use byte_position.
* java/expr.c (JAVA_ARRAY_LENGTH_OFFSET): Use byte_position.
(java_array_data_offset): Likewise.
* java/java-tree.h (MAYBE_CREATE_TYPE_TYPE_LANG_SPECIFIC): Add case to
bzero call.
From-SVN: r32742
2000-03-25 19:34:13 +01:00
|
|
|
|
unsigned int i;
|
|
|
|
|
|
1992-02-28 11:23:25 +01:00
|
|
|
|
for (i = 0; i < nwords; i++)
|
|
|
|
|
if (! TEST_HARD_REG_BIT (reg_class_contents[(int) class],
|
|
|
|
|
regno + i))
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
if (i == nwords)
|
|
|
|
|
{
|
|
|
|
|
/* If we were going to use OUT as the reload reg
|
|
|
|
|
and changed our mind, it means OUT is a dummy that
|
|
|
|
|
dies here. So don't bother copying value to it. */
|
|
|
|
|
if (for_real >= 0 && value == real_out)
|
1999-09-12 16:54:56 +02:00
|
|
|
|
rld[for_real].out = 0;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
if (GET_CODE (real_in) == REG)
|
|
|
|
|
value = real_in;
|
|
|
|
|
else
|
alias.c: Change all uses of gen_rtx(FOO...) to gen_rtx_FOO...
* alias.c: Change all uses of gen_rtx(FOO...) to gen_rtx_FOO;
change gen_rtx(expr...) to gen_rtx_fmt_foo(expr...).
* caller-save.c, calls.c, combine.c, cse.c: Likewise.
* dwarf2out.c, except.c, explow.c, expmed.c, expr.c: Likewise.
* final.c, flow.c, function.c, genpeep.c, haifa-sched.c: Likewise.
* halfpic.c, integrate.c, jump.c, local-alloc.c, loop.c: Likewise.
* profile.c, recog.c, reg-stack.c, regclass.c, regmove.c: Likewise.
* reload.c, reload1.c, reorg.c, sched.c, stmt.c, stupid.c: Likewise.
* unroll.c, varasm.c: Likewise.
* config/alpha/alpha.c, config/alpha/alpha.md: Likewise.
From-SVN: r17357
1998-01-15 00:10:50 +01:00
|
|
|
|
value = gen_rtx_REG (inmode, regno);
|
1992-02-28 11:23:25 +01:00
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return value;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* This page contains subroutines used mainly for determining
|
|
|
|
|
whether the IN or an OUT of a reload can serve as the
|
|
|
|
|
reload register. */
|
|
|
|
|
|
1993-09-18 13:57:54 +02:00
|
|
|
|
/* Return 1 if X is an operand of an insn that is being earlyclobbered. */
|
|
|
|
|
|
1999-10-27 04:14:12 +02:00
|
|
|
|
int
|
1993-09-18 13:57:54 +02:00
|
|
|
|
earlyclobber_operand_p (x)
|
|
|
|
|
rtx x;
|
|
|
|
|
{
|
|
|
|
|
int i;
|
|
|
|
|
|
|
|
|
|
for (i = 0; i < n_earlyclobbers; i++)
|
|
|
|
|
if (reload_earlyclobbers[i] == x)
|
|
|
|
|
return 1;
|
|
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
1992-02-28 11:23:25 +01:00
|
|
|
|
/* Return 1 if expression X alters a hard reg in the range
|
|
|
|
|
from BEG_REGNO (inclusive) to END_REGNO (exclusive),
|
|
|
|
|
either explicitly or in the guise of a pseudo-reg allocated to REGNO.
|
|
|
|
|
X should be the body of an instruction. */
|
|
|
|
|
|
|
|
|
|
static int
|
|
|
|
|
hard_reg_set_here_p (beg_regno, end_regno, x)
|
* Rework fields used to describe positions of bitfields and
modify sizes to be unsigned and use HOST_WIDE_INT.
* alias.c (reg_known_value_size): Now unsigned.
* c-typeck.c (build_unary_op, case ADDR_EXPR): Use byte_position.
(really_start_incremental_init): Use bitsize_zero_node.
(push_init_level, pop_init_level, output_init_element): Likewise.
Use bitsize_unit_node and bitsize_one_node.
(output_pending_init_elements, process_init_element): Likewise.
* combine.c (combine_max_regno, reg_sign_bit_copies): Now unsigned.
(make_extraction): Position and length HOST_WIDE_INT and unsigned
HOST_WIDE_INT, respectively.
(get_pos_from_mask): Passed in value is unsigned HOST_WIDE_INT.
(num_sign_bit_copies): Returns unsigned.
BITWIDTH now unsigned; rework arithmetic.
Remove recursive call from arg to MAX.
(combine_instructions, init_reg_last_arrays): NREGS now unsigned.
(setup_incoming_promotions, can_combine_p, try_combine, simplify_set):
REGNO now unsigned.
(set_nonzero_bit_and_sign_copies): NUM now unsigned.
(find_split_point, expand_compound_operation, make_extraction): LEN
now unsigned HOST_WIDE_INT, POS now HOST_WIDE_INT.
(make_field_assignment): Likewise.
(combine_simplify_rtx): Add cast.
(expand_compound_operation): MODEWIDTH now unsigned; rework arithmetic.
(force_to_mode): WIDTH now unsigned; add cast.
(if_then_else_cond): SIZE now unsigned.
(nonzero_bits): MODE_WIDTH, RESULT_WIDTH, and WIDTH now unsigned.
(extended_count): Now returns unsigned.
(simplify_shift_const): COUNT unsigned; arg is now INPUT_COUNT.
Add SIGNED_COUNT variable; MODE_WORDS and FIRST_COUNT now unsigned.
(simplify_comparison): MODE_WIDTH now unsigned.
(update_table_tick): REGNO and ENDREGNO now unsigned; new var R.
(mark_used_regs_combine): Likewise; rework arithmetic.
(record_value_for_reg): REGNO, ENDREGNO, and I now unsigned.
(record_dead_and_set_regs, reg_dead_at_p, distribute_notes): Likewise.
(record_promoted_value): REGNO now unsigned.
(get_last_value_validate): REGNO, ENDREGNO, and J now unsigned.
(get_last_value): REGNO now unsigned.
(use_crosses_set_p): REGNO and ENDREGNO now unsigned.
(reg_dead_regno, reg_dead_endregno): Now unsigned.
(remove_death): Arg REGNO now unsigned.
(move_deaths): REGNO, DEADREGNO, DEADEND, OUREND, and I now unsigned.
(reg_bitfield_target_p): REGNO, REGNO, ENDREGNO, and ENDTREGNO
now unsigned.
* convert.c (convert_to_integer): INPREC and OUTPREC now unsigned.
* cse.c (struct qty_table_elem): FIRST_REG and LAST_REG now unsigned.
(struct cse_reg_info): REGNO now unsigned.
(cached_regno): Now unsigned.
(REGNO_QTY_VALID_P): Add cast.
(make_new_qty, make_regs_eqv, delete_reg_eqiv): Regno args unsigned.
(remove_invalid_regs): Likewise.
(remove_invalid_subreg_refs): Likewise; arg WORD also unsigned
as are variables END and I.
(get_cse_reg_info, insert): Likewise.
(mention_regs, invalidate_for_call): REGNO, ENDREGNO, and I unsigned.
(canon_hash): Likewise.
(insert_regs, lookup_for_remove): REGNO now unsigned.
(invalidate): REGNO, ENDREGNO, TREGNO, and TENDREGNO now unsigned.
New variable RN.
* dbxout.c (dbxout_parms, dbxout_reg_parms): Don't check for REGNO < 0.
* dwarf2out.c (dwarf2ou_frame_debug_expr): Remove cast.
* emit-rtl.c (subreg_realpart_p): Add cast.
(operand_subword): Arg I is now unsigned as is var PARTWORDS.
(operand_subword_force): Arg I is now unsigned.
* except.c (eh_regs): Variable I is now unsigned.
* explow.c (hard_function_value): BYTES is unsigned HOST_WIDE_INT.
* expmed.c (store_fixed_bit_field): Position is HOST_WIDE_INT;
length is unsigned HOST_WIDE_INT; likewise for internal variables.
(store_split_bit_field, extract_fixed_bit_field): Likewise.
(extract_split_bit_field, store_bit_field, extract_bit_field):
Likewise.
* expr.c (store_constructor_fields, store_constructor, store_field):
Positions are HOST_WIDE_INT and lengths are unsigned HOST_WIDE_INT.
(expand_assignment, expand_expr, expand_expr_unaligned): Likewise.
(do_jump): Likewise.
(move_by_pieces, move_by_pieces_ninsns, clear_by_pieces):
MAX_SIZE is now unsigned.
(emit_group_load): BYTEPOS is HOST_WIDE_INT; BYTELEN is unsigned.
(emit_group_store): Likewise.
(emit_move_insn): I now unsigned.
(store_constructor): Use host_integerp, tree_low_cst, and
bitsize_unit_node.
(get_inner_reference): Return bitpos and bitsize as HOST_WIDE_INT.
Rework all calculations to use trees and new fields.
* expr.h (promoted_input_arg): Regno now unsigned.
(store_bit_field, extract_bit_field): Adjust types of pos and size.
(mark_seen_cases): Arg is HOST_WIDE_INT.
* flow.c (verify_wide_reg_1): REGNO now unsigned.
* fold-const.c (decode_field_reference): Size and pos HOST_WIDE_INT;
precisions and alignments are unsigned.
(optimize_bit_field_compare, fold_truthop): Likewise.
(int_const_binop): Adjust threshold for size_int_type_wide call.
(fold_convert): Likewise.
(size_int_type_wide): Make table larger and fix thinko that only
had half of table used.
(all_ones_mask_p, fold): Precisions are unsigned.
* function.c (put_reg_info_stack): REGNO is unsigned.
(instantiate_decl): Size is HOST_WIDE_INT.
(instantiate_virtual_regs): I is unsigned.
(assign_parms): REGNO, REGNOI, and REGNOR are unsigned.
(promoted_input_arg): REGNO is unsigned.
* function.h (struct function): x_max_parm_reg is now unsigned.
* gcse.c (max_gcse_regno): Now unsigned.
(struct null_pointer_info): min_reg and max_reg now unsigned.
(lookup_set, next_set): REGNO arg now unsigned.
(compute_hash_table): REGNO and I now unsigned.
(handle_avail_expr): regnum_for_replacing now unsigned.
(cprop_insn): REGNO now unsigned.
(delete_null_pointer_checks_1): BLOCK_REG now pointer to unsigned.
* ggc-common.c (ggc_mark_tree_children, case FIELD_DECL): New case.
* global.c (set_preference): SRC_REGNO, DEST_REGNO, and I now unsigned.
* hard-reg-set.h (reg_class_size): Now unsigned.
* integrate.c (mark_stores): LAST_REG and I now unsigned; new UREGNO.
* jump.c (mark_modified_reg): I now unsigned; add cast.
(rtx_equal_for_thread_p): Add cast.
* loop.c (max_reg_before_loop): Now unsigned.
(struct_movable): REGNO now unsigned.
(try_copy_prop): REGNO arg unsigned.
(regs_match_p): XN and YN now unsigned.
(consec_sets_invariant_p, maybe_eliminate_biv): REGNO now unsigned.
(strength_reduce): Likewise; NREGS also unsigned.
(first_increment_giv, last_increment_giv unsigned): Now unsigned.
* loop.h (struct iv_class): REGNO now unsigned.
(max_reg_before_loop, first_increment_giv, last_increment_giv):
Now unsigned.
* machmode.h (mode_size, mode_unit_size): Now unsigned.
(mode_for_size, smallest_mode_for_size): Pass size as unsigned.
* optabs.c (expand_binop): I and NWORDS now unsigned.
(expand_unop): I now unsigned.
* print-tree.c (print_node): Don't print DECL_FIELD_BITPOS, but do
print DECL_FIELD_OFFSET and DECL_FIELD_BIT_OFFSET.
* real.c (significand_size): Now returns unsigned.
* real.h (significand_size): Likewise.
* regclass.c (reg_class_size): Now unsigned.
(choose_hard_reg_mode): Both operands now unsigned.
(record_reg_classes): REGNO and NR now unsigned.
(reg_scan): NREGS now unsigned.
(reg_scan_update): old_max_regno now unsigned.
(reg_scan_mark_refs): Arg MIN_REGNO and var REGNO now unsigned.
* reload.c (find_valid_class): BEST_SIZE now unsigned.
(find_dummy_reload): REGNO, NWORDS, and I now unsigned.
(hard_reg_set_here_p): Args BEG_REGNO and END_REGNO now unsigned.
Likewise for variable R.
(refers_to_regno_for_reload_p): Args REGNO and END_REGNO now unsigned,
as are variables INNER_REGNO and INNER_ENDREGNO; add new variable R.
(find_equiv_reg): Add casts.
(regno_clobbered_p): Arg REGNO now unsigned.
* reload.h (struct reload): NREGS now unsigned.
(refers_to_regno_for_reload_p): Regno args are unsigned.
(regno_clobbered_p): Likewise.
* reload1.c (reg_max_ref_width, spill_stack_slot_width): Now unsigned.
(compute_use_by_pseudos): REGNO now unsigned.
(find_reg): I and J now unsigned, new variable K, and change loop
variables accordingly; THIS_NREGS now unsigned.
(alter_reg): INHERENT_SIZE and TOTAL_SIZE now unsigned.
(spill_hard_reg): REGNO arg now unsigned; add casts.
(forget_old_reloads_1): REGNO, NR, and I now unsigned.
(mark_reload_reg_in_use): Arg REGNO and vars NREGS and I now unsigned.
(clear_reload_reg_in_use): Arg REGNO and vars NREGS, START_REGNO,
END_REGNO, CONFLICT_START, and CONFLICT_END now unsigned.
(reload_reg_free_p, reload_reg_reaches_end_p): Arg REGNO now unsigned.
(choose_reload_regs): MAX_GROUP_SIZE now unsigned.
(emit_reload_insns): REGNO now unsigned.
(reload_cse_move2add): Add cast.
(move2add_note_store): REGNO and I now unsigned; new variable ENDREGNO
and rework loop.
* resource.c (mark_referenced_resources, mark_set_resources): New
variable R; REGNO and LAST_REGNO now unsigned.
(mark_target_live_regs): J and REGNO now unsigned.
* rtl.c (mode_size, mode_unit_size): Now unsigned.
* rtl.h (union rtunion_def): New field rtuint.
(XCUINT): New macro.
(ADDRESSOF_REGNO, REGNO, SUBREG_WORD): New XCUINT.
(operand_subword, operand_subword_force): Word number is unsigned.
(choose_hard_reg_mode): Operands are unsigned.
(refers_to-regno_p, dead_or_set_regno_p): Regno arg is unsigned.
(find_regno_note, find_regno_fusage, replace_regs): Likewise.
(regno_use_in, combine_instructions, remove_death): Likewise.
(reg_scan, reg_scan_update): Likewise.
(extended_count): Return is unsigned.
* rtlanal.c (refers_to_regno_p): Args REGNO and ENDREGNO and vars I,
INNER_REGNO, and INNER_ENDREGNO now unsigned; new variable X_REGNO.
(reg_overlap_mentioned_p): REGNO and ENDREGNO now unsigned.
(reg_set_last_first_regno, reg_set_last_last_regno): Now unsigned.
(reg_reg_last_1): FIRS and LAST now unsigned.
(dead_or_set_p): REGNO, LAST_REGNO, and I now unsigned.
(dead_or_set_regno_p): Arg TEST_REGNO and vars REGNO and ENDREGNO
now unsigned.
(find_regno_note, regno_use_in): Arg REGNO now unsigned.
(find_regno_fusage): Likewise; also var REGNOTE now unsigned.
(find_reg_fusage): Variables REGNO, END_REGNO, and I now unsigned.
(replace_regs): Arg NREGS now unsigned.
* sdbout.c (sdbout_parms, sdbout_reg_parms): Don't check REGNO < 0.
* simplify-rtx.c (simplify_unary_operation): WIDTH now unsigned.
(simplify_binary_operation): Likewise.
(cselib_invalidate_regno): Arg REGNO and variables ENDREGNO, I, and
THIS_LAST now unsigned.
(cselib_record_set): Add cast.
* ssa.c (ssa_max_reg_num): Now unsigned.
(rename_block): REGNO now unsigned.
* stmt.c (expand_return): Bit positions unsigned HOST_WIDE_INT;
sizes now unsigned.
(all_cases_count): Just return -1 not -2.
COUNT, MINVAL, and LASTVAL now HOST_WIDE_INT.
Rework tests to use trees whenever possible.
Use host_integerp and tree_low_cst.
(mark_seen_cases): COUNT arg now HOST_WIDE_INT;
Likewise variable NEXT_NODE_OFFSET; XLO now unsigned.
(check_for_full_enumeration_handing): BYTES_NEEDED, I to HOST_WIDE_INT.
* stor-layout.c (mode_for_size): SIZE arg now unsigned.
(smallest_mode_for_size): Likewise.
(layout_decl): Simplify handing of a specified DECL_SIZE_UNIT.
KNOWN_ALIGN is now an alignment, so simplify code.
Don't turn off DECL_BIT_FIELD if field is BLKmode, but not type.
(start_record_layout): Renamed from new_record_layout_info.
Update to new fields.
(debug_rli, normalize_rli, rli_size_unit_so_far, rli_size_so_far):
New functions.
(place_union_field): Renamed from layout_union_field.
Update to use new fields in rli.
(place_field): Renamed from layout_field.
Major rewrite to use new fields in rli; pass alignment to layout_decl.
(finalize_record_size): Rework to use new fields in rli and handle
union.
(compute_record_mode): Rework to simplify and to use new DECL fields.
(finalize_type_size): Make rounding more consistent.
(finish_union_layout): Deleted.
(layout_type, case VOID_TYPE): Don't set TYPE_SIZE_UNIT either.
(layout_type, case RECORD_TYPE): Call new function names.
(initialize_sizetypes): Set TYPE_IS_SIZETYPE.
(set_sizetype): Set TYPE_IS_SIZETYPE earlier.
(get_best_mode): UNIT is now unsigned; remove casts.
* tree.c (bit_position): Compute from new fields.
(byte_position, int_byte_position): New functions.
(print_type_hash_statistics): Cast to remove warning.
(build_range_type): Use host_integerp and tree_low_cst to try to hash.
(build_index_type): Likewise; make subtype of sizetype.
(build_index_2_type): Pass sizetype to build_range_type.
(build_common_tree_nodes): Use size_int and bitsize_int to
initialize nodes; add bitsize_{zero,one,unit}_node.
* tree.h (DECL_FIELD_CONTEXT): Use FIELD_DECL_CHECK.
(DECL_BIT_FIELD_TYPE, DECL_QUALIFIER, DECL_FCONTEXT): Likewise.
(DECL_PACKED, DECL_BIT_FIELD): Likewise.
(DECL_FIELD_BITPOS): Deleted.
(DECL_FIELD_OFFSET, DECL_FIELD_BIT_OFFSET): New fields.
(DECL_RESULT, DECL_SAVED_INSNS): Use FUNCTION_DECL_CHECK.
(DECL_FRAME_SIZE, DECL_FUNCTION_CODE, DECL_NO_STATIC_CHAIN): Likewise.
(DECL_INLINE, DECL_BUILT_IN_NONANSI, DECL_IS_MALLOC): Likewise.
(DECL_BUILT_IN_CLASS, DECL_STATIC_CONSTRUCTOR): Likewise.
(DECL_STATIC_DESTRUCTOR, DECL_NO_CHECK_MEMORY_USAGE): Likewise.
(DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT, DECL_NO_LIMIT_STACK) Likewise.
(DECL_ORIGINAL_TYPE, TYPE_DECL_SUPPRESS_DEBUG): Use TYPE_DECL_CHECK.
(DECL_ARG_TYPE_AS_WRITEN, DECL_ARG_TYPE): Use PARM_DECL_CHECK.
(DECL_INCOMING_RTL, DECL_TRANSPARENT_UNION): Likewise.
(DECL_ALIGN): Adjust to new field in union.
(DECL_OFFSET_ALIGN): New field.
(DECL_ERROR_ISSUED, DECL_TOO_LATE): Use LABEL_DECL_CHECK.
(DECL_IN_TEXT_SECTION): Use VAR_DECL_CHECK.
(union tree_decl): Add struct for both aligns.
(enum tree_index): Add TI_BITSIZE_{ZERO,ONE,UNIT}.
(bitsize_zero_node, bitsize_one_node, bitsize_unit_node): Added.
(struct record_layout_info): Rework fields to have offset
alignment and byte and bit position.
(start_record_layout, place_field): Renamed from old names.
(rli_size_so_far, rli_size_unit_so_far, normalize_rli): New decls.
(byte_position, int_byte_position): Likewise.
(get_inner_reference): Change types of position and length.
* unroll.c (unroll_loop): New variable R; use for some loops.
MAX_LOCAL_REGNUM and MAXREGNUM now unsigned.
(calculate_giv_inc): Arg REGNO now unsigned.
(copy_loop_body): REGNO and SRC_REGNO now unsigned.
* varasm.c (assemble_variable): Clean up handling of size using
host_integerp and tree_low_cst.
(decode_addr_const): Use byte, not bit, position.
(output_constructor): bitpos and offsets are HOST_WIDE_INT;
use tree_low_cst and int_bit_position.
* objc/objc-act.c (build_ivar_list_initializer): Use byte_position.
* ch/actions.c (check_missing_cases): BYTES_NEEDED is HOST_WIDE_INT.
* ch/typeck.c (expand_constant_to_buffer): Use int_byte_position.
(extract_constant_from_buffer): Likewise.
* cp/class.c (build_vbase_pointer_fields): layout_field now
place_field.
(get_vfield_offset): Use byte_position.
(set_rtti_entry): Set OFFSET to ssizetype zero.
(get_binfo_offset_as_int): Deleted.
(dfs_record_base_offsets): Use tree_low_cst.
(dfs_search_base_offsets): Likewise.
(layout_nonempty_base_or_field): Reflect changes in RLI format
and call byte_position.
(layout_empty_base): Convert offset to ssizetype.
(build_base_field): use rli_size_unit_so_far.
(dfs_propagate_binfo_offsets): Do computation in proper type.
(layout_virtual_bases): Pass ssizetype to propagate_binfo_offsets.
(layout_class_type): Reflect changes in RLI names and fields.
(finish_struct_1): Set DECL_FIELD_OFFSET.
* cp/dump.c (dequeue_and_dump): Call bit_position.
* cp/expr.c (cplus_expand_constant): Use byte_position.
* cp/rtti.c (expand_class_desc): Use bitsize_one_node.
* cp/typeck.c (build_component_addr): Use byte_position and don't
special case for zero offset.
* f/com.c (ffecom_tree_canonize_ptr_): Use bitsize_zero_node.
(ffecom_tree_canonize_ref_): Likewise.
* java/class.c (make_field_value): Use byte_position.
* java/expr.c (JAVA_ARRAY_LENGTH_OFFSET): Use byte_position.
(java_array_data_offset): Likewise.
* java/java-tree.h (MAYBE_CREATE_TYPE_TYPE_LANG_SPECIFIC): Add case to
bzero call.
From-SVN: r32742
2000-03-25 19:34:13 +01:00
|
|
|
|
unsigned int beg_regno, end_regno;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
rtx x;
|
|
|
|
|
{
|
|
|
|
|
if (GET_CODE (x) == SET || GET_CODE (x) == CLOBBER)
|
|
|
|
|
{
|
2001-10-11 05:16:15 +02:00
|
|
|
|
rtx op0 = SET_DEST (x);
|
* Rework fields used to describe positions of bitfields and
modify sizes to be unsigned and use HOST_WIDE_INT.
* alias.c (reg_known_value_size): Now unsigned.
* c-typeck.c (build_unary_op, case ADDR_EXPR): Use byte_position.
(really_start_incremental_init): Use bitsize_zero_node.
(push_init_level, pop_init_level, output_init_element): Likewise.
Use bitsize_unit_node and bitsize_one_node.
(output_pending_init_elements, process_init_element): Likewise.
* combine.c (combine_max_regno, reg_sign_bit_copies): Now unsigned.
(make_extraction): Position and length HOST_WIDE_INT and unsigned
HOST_WIDE_INT, respectively.
(get_pos_from_mask): Passed in value is unsigned HOST_WIDE_INT.
(num_sign_bit_copies): Returns unsigned.
BITWIDTH now unsigned; rework arithmetic.
Remove recursive call from arg to MAX.
(combine_instructions, init_reg_last_arrays): NREGS now unsigned.
(setup_incoming_promotions, can_combine_p, try_combine, simplify_set):
REGNO now unsigned.
(set_nonzero_bit_and_sign_copies): NUM now unsigned.
(find_split_point, expand_compound_operation, make_extraction): LEN
now unsigned HOST_WIDE_INT, POS now HOST_WIDE_INT.
(make_field_assignment): Likewise.
(combine_simplify_rtx): Add cast.
(expand_compound_operation): MODEWIDTH now unsigned; rework arithmetic.
(force_to_mode): WIDTH now unsigned; add cast.
(if_then_else_cond): SIZE now unsigned.
(nonzero_bits): MODE_WIDTH, RESULT_WIDTH, and WIDTH now unsigned.
(extended_count): Now returns unsigned.
(simplify_shift_const): COUNT unsigned; arg is now INPUT_COUNT.
Add SIGNED_COUNT variable; MODE_WORDS and FIRST_COUNT now unsigned.
(simplify_comparison): MODE_WIDTH now unsigned.
(update_table_tick): REGNO and ENDREGNO now unsigned; new var R.
(mark_used_regs_combine): Likewise; rework arithmetic.
(record_value_for_reg): REGNO, ENDREGNO, and I now unsigned.
(record_dead_and_set_regs, reg_dead_at_p, distribute_notes): Likewise.
(record_promoted_value): REGNO now unsigned.
(get_last_value_validate): REGNO, ENDREGNO, and J now unsigned.
(get_last_value): REGNO now unsigned.
(use_crosses_set_p): REGNO and ENDREGNO now unsigned.
(reg_dead_regno, reg_dead_endregno): Now unsigned.
(remove_death): Arg REGNO now unsigned.
(move_deaths): REGNO, DEADREGNO, DEADEND, OUREND, and I now unsigned.
(reg_bitfield_target_p): REGNO, REGNO, ENDREGNO, and ENDTREGNO
now unsigned.
* convert.c (convert_to_integer): INPREC and OUTPREC now unsigned.
* cse.c (struct qty_table_elem): FIRST_REG and LAST_REG now unsigned.
(struct cse_reg_info): REGNO now unsigned.
(cached_regno): Now unsigned.
(REGNO_QTY_VALID_P): Add cast.
(make_new_qty, make_regs_eqv, delete_reg_eqiv): Regno args unsigned.
(remove_invalid_regs): Likewise.
(remove_invalid_subreg_refs): Likewise; arg WORD also unsigned
as are variables END and I.
(get_cse_reg_info, insert): Likewise.
(mention_regs, invalidate_for_call): REGNO, ENDREGNO, and I unsigned.
(canon_hash): Likewise.
(insert_regs, lookup_for_remove): REGNO now unsigned.
(invalidate): REGNO, ENDREGNO, TREGNO, and TENDREGNO now unsigned.
New variable RN.
* dbxout.c (dbxout_parms, dbxout_reg_parms): Don't check for REGNO < 0.
* dwarf2out.c (dwarf2ou_frame_debug_expr): Remove cast.
* emit-rtl.c (subreg_realpart_p): Add cast.
(operand_subword): Arg I is now unsigned as is var PARTWORDS.
(operand_subword_force): Arg I is now unsigned.
* except.c (eh_regs): Variable I is now unsigned.
* explow.c (hard_function_value): BYTES is unsigned HOST_WIDE_INT.
* expmed.c (store_fixed_bit_field): Position is HOST_WIDE_INT;
length is unsigned HOST_WIDE_INT; likewise for internal variables.
(store_split_bit_field, extract_fixed_bit_field): Likewise.
(extract_split_bit_field, store_bit_field, extract_bit_field):
Likewise.
* expr.c (store_constructor_fields, store_constructor, store_field):
Positions are HOST_WIDE_INT and lengths are unsigned HOST_WIDE_INT.
(expand_assignment, expand_expr, expand_expr_unaligned): Likewise.
(do_jump): Likewise.
(move_by_pieces, move_by_pieces_ninsns, clear_by_pieces):
MAX_SIZE is now unsigned.
(emit_group_load): BYTEPOS is HOST_WIDE_INT; BYTELEN is unsigned.
(emit_group_store): Likewise.
(emit_move_insn): I now unsigned.
(store_constructor): Use host_integerp, tree_low_cst, and
bitsize_unit_node.
(get_inner_reference): Return bitpos and bitsize as HOST_WIDE_INT.
Rework all calculations to use trees and new fields.
* expr.h (promoted_input_arg): Regno now unsigned.
(store_bit_field, extract_bit_field): Adjust types of pos and size.
(mark_seen_cases): Arg is HOST_WIDE_INT.
* flow.c (verify_wide_reg_1): REGNO now unsigned.
* fold-const.c (decode_field_reference): Size and pos HOST_WIDE_INT;
precisions and alignments are unsigned.
(optimize_bit_field_compare, fold_truthop): Likewise.
(int_const_binop): Adjust threshold for size_int_type_wide call.
(fold_convert): Likewise.
(size_int_type_wide): Make table larger and fix thinko that only
had half of table used.
(all_ones_mask_p, fold): Precisions are unsigned.
* function.c (put_reg_info_stack): REGNO is unsigned.
(instantiate_decl): Size is HOST_WIDE_INT.
(instantiate_virtual_regs): I is unsigned.
(assign_parms): REGNO, REGNOI, and REGNOR are unsigned.
(promoted_input_arg): REGNO is unsigned.
* function.h (struct function): x_max_parm_reg is now unsigned.
* gcse.c (max_gcse_regno): Now unsigned.
(struct null_pointer_info): min_reg and max_reg now unsigned.
(lookup_set, next_set): REGNO arg now unsigned.
(compute_hash_table): REGNO and I now unsigned.
(handle_avail_expr): regnum_for_replacing now unsigned.
(cprop_insn): REGNO now unsigned.
(delete_null_pointer_checks_1): BLOCK_REG now pointer to unsigned.
* ggc-common.c (ggc_mark_tree_children, case FIELD_DECL): New case.
* global.c (set_preference): SRC_REGNO, DEST_REGNO, and I now unsigned.
* hard-reg-set.h (reg_class_size): Now unsigned.
* integrate.c (mark_stores): LAST_REG and I now unsigned; new UREGNO.
* jump.c (mark_modified_reg): I now unsigned; add cast.
(rtx_equal_for_thread_p): Add cast.
* loop.c (max_reg_before_loop): Now unsigned.
(struct_movable): REGNO now unsigned.
(try_copy_prop): REGNO arg unsigned.
(regs_match_p): XN and YN now unsigned.
(consec_sets_invariant_p, maybe_eliminate_biv): REGNO now unsigned.
(strength_reduce): Likewise; NREGS also unsigned.
(first_increment_giv, last_increment_giv unsigned): Now unsigned.
* loop.h (struct iv_class): REGNO now unsigned.
(max_reg_before_loop, first_increment_giv, last_increment_giv):
Now unsigned.
* machmode.h (mode_size, mode_unit_size): Now unsigned.
(mode_for_size, smallest_mode_for_size): Pass size as unsigned.
* optabs.c (expand_binop): I and NWORDS now unsigned.
(expand_unop): I now unsigned.
* print-tree.c (print_node): Don't print DECL_FIELD_BITPOS, but do
print DECL_FIELD_OFFSET and DECL_FIELD_BIT_OFFSET.
* real.c (significand_size): Now returns unsigned.
* real.h (significand_size): Likewise.
* regclass.c (reg_class_size): Now unsigned.
(choose_hard_reg_mode): Both operands now unsigned.
(record_reg_classes): REGNO and NR now unsigned.
(reg_scan): NREGS now unsigned.
(reg_scan_update): old_max_regno now unsigned.
(reg_scan_mark_refs): Arg MIN_REGNO and var REGNO now unsigned.
* reload.c (find_valid_class): BEST_SIZE now unsigned.
(find_dummy_reload): REGNO, NWORDS, and I now unsigned.
(hard_reg_set_here_p): Args BEG_REGNO and END_REGNO now unsigned.
Likewise for variable R.
(refers_to_regno_for_reload_p): Args REGNO and END_REGNO now unsigned,
as are variables INNER_REGNO and INNER_ENDREGNO; add new variable R.
(find_equiv_reg): Add casts.
(regno_clobbered_p): Arg REGNO now unsigned.
* reload.h (struct reload): NREGS now unsigned.
(refers_to_regno_for_reload_p): Regno args are unsigned.
(regno_clobbered_p): Likewise.
* reload1.c (reg_max_ref_width, spill_stack_slot_width): Now unsigned.
(compute_use_by_pseudos): REGNO now unsigned.
(find_reg): I and J now unsigned, new variable K, and change loop
variables accordingly; THIS_NREGS now unsigned.
(alter_reg): INHERENT_SIZE and TOTAL_SIZE now unsigned.
(spill_hard_reg): REGNO arg now unsigned; add casts.
(forget_old_reloads_1): REGNO, NR, and I now unsigned.
(mark_reload_reg_in_use): Arg REGNO and vars NREGS and I now unsigned.
(clear_reload_reg_in_use): Arg REGNO and vars NREGS, START_REGNO,
END_REGNO, CONFLICT_START, and CONFLICT_END now unsigned.
(reload_reg_free_p, reload_reg_reaches_end_p): Arg REGNO now unsigned.
(choose_reload_regs): MAX_GROUP_SIZE now unsigned.
(emit_reload_insns): REGNO now unsigned.
(reload_cse_move2add): Add cast.
(move2add_note_store): REGNO and I now unsigned; new variable ENDREGNO
and rework loop.
* resource.c (mark_referenced_resources, mark_set_resources): New
variable R; REGNO and LAST_REGNO now unsigned.
(mark_target_live_regs): J and REGNO now unsigned.
* rtl.c (mode_size, mode_unit_size): Now unsigned.
* rtl.h (union rtunion_def): New field rtuint.
(XCUINT): New macro.
(ADDRESSOF_REGNO, REGNO, SUBREG_WORD): New XCUINT.
(operand_subword, operand_subword_force): Word number is unsigned.
(choose_hard_reg_mode): Operands are unsigned.
(refers_to-regno_p, dead_or_set_regno_p): Regno arg is unsigned.
(find_regno_note, find_regno_fusage, replace_regs): Likewise.
(regno_use_in, combine_instructions, remove_death): Likewise.
(reg_scan, reg_scan_update): Likewise.
(extended_count): Return is unsigned.
* rtlanal.c (refers_to_regno_p): Args REGNO and ENDREGNO and vars I,
INNER_REGNO, and INNER_ENDREGNO now unsigned; new variable X_REGNO.
(reg_overlap_mentioned_p): REGNO and ENDREGNO now unsigned.
(reg_set_last_first_regno, reg_set_last_last_regno): Now unsigned.
(reg_reg_last_1): FIRS and LAST now unsigned.
(dead_or_set_p): REGNO, LAST_REGNO, and I now unsigned.
(dead_or_set_regno_p): Arg TEST_REGNO and vars REGNO and ENDREGNO
now unsigned.
(find_regno_note, regno_use_in): Arg REGNO now unsigned.
(find_regno_fusage): Likewise; also var REGNOTE now unsigned.
(find_reg_fusage): Variables REGNO, END_REGNO, and I now unsigned.
(replace_regs): Arg NREGS now unsigned.
* sdbout.c (sdbout_parms, sdbout_reg_parms): Don't check REGNO < 0.
* simplify-rtx.c (simplify_unary_operation): WIDTH now unsigned.
(simplify_binary_operation): Likewise.
(cselib_invalidate_regno): Arg REGNO and variables ENDREGNO, I, and
THIS_LAST now unsigned.
(cselib_record_set): Add cast.
* ssa.c (ssa_max_reg_num): Now unsigned.
(rename_block): REGNO now unsigned.
* stmt.c (expand_return): Bit positions unsigned HOST_WIDE_INT;
sizes now unsigned.
(all_cases_count): Just return -1 not -2.
COUNT, MINVAL, and LASTVAL now HOST_WIDE_INT.
Rework tests to use trees whenever possible.
Use host_integerp and tree_low_cst.
(mark_seen_cases): COUNT arg now HOST_WIDE_INT;
Likewise variable NEXT_NODE_OFFSET; XLO now unsigned.
(check_for_full_enumeration_handing): BYTES_NEEDED, I to HOST_WIDE_INT.
* stor-layout.c (mode_for_size): SIZE arg now unsigned.
(smallest_mode_for_size): Likewise.
(layout_decl): Simplify handing of a specified DECL_SIZE_UNIT.
KNOWN_ALIGN is now an alignment, so simplify code.
Don't turn off DECL_BIT_FIELD if field is BLKmode, but not type.
(start_record_layout): Renamed from new_record_layout_info.
Update to new fields.
(debug_rli, normalize_rli, rli_size_unit_so_far, rli_size_so_far):
New functions.
(place_union_field): Renamed from layout_union_field.
Update to use new fields in rli.
(place_field): Renamed from layout_field.
Major rewrite to use new fields in rli; pass alignment to layout_decl.
(finalize_record_size): Rework to use new fields in rli and handle
union.
(compute_record_mode): Rework to simplify and to use new DECL fields.
(finalize_type_size): Make rounding more consistent.
(finish_union_layout): Deleted.
(layout_type, case VOID_TYPE): Don't set TYPE_SIZE_UNIT either.
(layout_type, case RECORD_TYPE): Call new function names.
(initialize_sizetypes): Set TYPE_IS_SIZETYPE.
(set_sizetype): Set TYPE_IS_SIZETYPE earlier.
(get_best_mode): UNIT is now unsigned; remove casts.
* tree.c (bit_position): Compute from new fields.
(byte_position, int_byte_position): New functions.
(print_type_hash_statistics): Cast to remove warning.
(build_range_type): Use host_integerp and tree_low_cst to try to hash.
(build_index_type): Likewise; make subtype of sizetype.
(build_index_2_type): Pass sizetype to build_range_type.
(build_common_tree_nodes): Use size_int and bitsize_int to
initialize nodes; add bitsize_{zero,one,unit}_node.
* tree.h (DECL_FIELD_CONTEXT): Use FIELD_DECL_CHECK.
(DECL_BIT_FIELD_TYPE, DECL_QUALIFIER, DECL_FCONTEXT): Likewise.
(DECL_PACKED, DECL_BIT_FIELD): Likewise.
(DECL_FIELD_BITPOS): Deleted.
(DECL_FIELD_OFFSET, DECL_FIELD_BIT_OFFSET): New fields.
(DECL_RESULT, DECL_SAVED_INSNS): Use FUNCTION_DECL_CHECK.
(DECL_FRAME_SIZE, DECL_FUNCTION_CODE, DECL_NO_STATIC_CHAIN): Likewise.
(DECL_INLINE, DECL_BUILT_IN_NONANSI, DECL_IS_MALLOC): Likewise.
(DECL_BUILT_IN_CLASS, DECL_STATIC_CONSTRUCTOR): Likewise.
(DECL_STATIC_DESTRUCTOR, DECL_NO_CHECK_MEMORY_USAGE): Likewise.
(DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT, DECL_NO_LIMIT_STACK) Likewise.
(DECL_ORIGINAL_TYPE, TYPE_DECL_SUPPRESS_DEBUG): Use TYPE_DECL_CHECK.
(DECL_ARG_TYPE_AS_WRITEN, DECL_ARG_TYPE): Use PARM_DECL_CHECK.
(DECL_INCOMING_RTL, DECL_TRANSPARENT_UNION): Likewise.
(DECL_ALIGN): Adjust to new field in union.
(DECL_OFFSET_ALIGN): New field.
(DECL_ERROR_ISSUED, DECL_TOO_LATE): Use LABEL_DECL_CHECK.
(DECL_IN_TEXT_SECTION): Use VAR_DECL_CHECK.
(union tree_decl): Add struct for both aligns.
(enum tree_index): Add TI_BITSIZE_{ZERO,ONE,UNIT}.
(bitsize_zero_node, bitsize_one_node, bitsize_unit_node): Added.
(struct record_layout_info): Rework fields to have offset
alignment and byte and bit position.
(start_record_layout, place_field): Renamed from old names.
(rli_size_so_far, rli_size_unit_so_far, normalize_rli): New decls.
(byte_position, int_byte_position): Likewise.
(get_inner_reference): Change types of position and length.
* unroll.c (unroll_loop): New variable R; use for some loops.
MAX_LOCAL_REGNUM and MAXREGNUM now unsigned.
(calculate_giv_inc): Arg REGNO now unsigned.
(copy_loop_body): REGNO and SRC_REGNO now unsigned.
* varasm.c (assemble_variable): Clean up handling of size using
host_integerp and tree_low_cst.
(decode_addr_const): Use byte, not bit, position.
(output_constructor): bitpos and offsets are HOST_WIDE_INT;
use tree_low_cst and int_bit_position.
* objc/objc-act.c (build_ivar_list_initializer): Use byte_position.
* ch/actions.c (check_missing_cases): BYTES_NEEDED is HOST_WIDE_INT.
* ch/typeck.c (expand_constant_to_buffer): Use int_byte_position.
(extract_constant_from_buffer): Likewise.
* cp/class.c (build_vbase_pointer_fields): layout_field now
place_field.
(get_vfield_offset): Use byte_position.
(set_rtti_entry): Set OFFSET to ssizetype zero.
(get_binfo_offset_as_int): Deleted.
(dfs_record_base_offsets): Use tree_low_cst.
(dfs_search_base_offsets): Likewise.
(layout_nonempty_base_or_field): Reflect changes in RLI format
and call byte_position.
(layout_empty_base): Convert offset to ssizetype.
(build_base_field): use rli_size_unit_so_far.
(dfs_propagate_binfo_offsets): Do computation in proper type.
(layout_virtual_bases): Pass ssizetype to propagate_binfo_offsets.
(layout_class_type): Reflect changes in RLI names and fields.
(finish_struct_1): Set DECL_FIELD_OFFSET.
* cp/dump.c (dequeue_and_dump): Call bit_position.
* cp/expr.c (cplus_expand_constant): Use byte_position.
* cp/rtti.c (expand_class_desc): Use bitsize_one_node.
* cp/typeck.c (build_component_addr): Use byte_position and don't
special case for zero offset.
* f/com.c (ffecom_tree_canonize_ptr_): Use bitsize_zero_node.
(ffecom_tree_canonize_ref_): Likewise.
* java/class.c (make_field_value): Use byte_position.
* java/expr.c (JAVA_ARRAY_LENGTH_OFFSET): Use byte_position.
(java_array_data_offset): Likewise.
* java/java-tree.h (MAYBE_CREATE_TYPE_TYPE_LANG_SPECIFIC): Add case to
bzero call.
From-SVN: r32742
2000-03-25 19:34:13 +01:00
|
|
|
|
|
1992-02-28 11:23:25 +01:00
|
|
|
|
while (GET_CODE (op0) == SUBREG)
|
|
|
|
|
op0 = SUBREG_REG (op0);
|
|
|
|
|
if (GET_CODE (op0) == REG)
|
|
|
|
|
{
|
* Rework fields used to describe positions of bitfields and
modify sizes to be unsigned and use HOST_WIDE_INT.
* alias.c (reg_known_value_size): Now unsigned.
* c-typeck.c (build_unary_op, case ADDR_EXPR): Use byte_position.
(really_start_incremental_init): Use bitsize_zero_node.
(push_init_level, pop_init_level, output_init_element): Likewise.
Use bitsize_unit_node and bitsize_one_node.
(output_pending_init_elements, process_init_element): Likewise.
* combine.c (combine_max_regno, reg_sign_bit_copies): Now unsigned.
(make_extraction): Position and length HOST_WIDE_INT and unsigned
HOST_WIDE_INT, respectively.
(get_pos_from_mask): Passed in value is unsigned HOST_WIDE_INT.
(num_sign_bit_copies): Returns unsigned.
BITWIDTH now unsigned; rework arithmetic.
Remove recursive call from arg to MAX.
(combine_instructions, init_reg_last_arrays): NREGS now unsigned.
(setup_incoming_promotions, can_combine_p, try_combine, simplify_set):
REGNO now unsigned.
(set_nonzero_bit_and_sign_copies): NUM now unsigned.
(find_split_point, expand_compound_operation, make_extraction): LEN
now unsigned HOST_WIDE_INT, POS now HOST_WIDE_INT.
(make_field_assignment): Likewise.
(combine_simplify_rtx): Add cast.
(expand_compound_operation): MODEWIDTH now unsigned; rework arithmetic.
(force_to_mode): WIDTH now unsigned; add cast.
(if_then_else_cond): SIZE now unsigned.
(nonzero_bits): MODE_WIDTH, RESULT_WIDTH, and WIDTH now unsigned.
(extended_count): Now returns unsigned.
(simplify_shift_const): COUNT unsigned; arg is now INPUT_COUNT.
Add SIGNED_COUNT variable; MODE_WORDS and FIRST_COUNT now unsigned.
(simplify_comparison): MODE_WIDTH now unsigned.
(update_table_tick): REGNO and ENDREGNO now unsigned; new var R.
(mark_used_regs_combine): Likewise; rework arithmetic.
(record_value_for_reg): REGNO, ENDREGNO, and I now unsigned.
(record_dead_and_set_regs, reg_dead_at_p, distribute_notes): Likewise.
(record_promoted_value): REGNO now unsigned.
(get_last_value_validate): REGNO, ENDREGNO, and J now unsigned.
(get_last_value): REGNO now unsigned.
(use_crosses_set_p): REGNO and ENDREGNO now unsigned.
(reg_dead_regno, reg_dead_endregno): Now unsigned.
(remove_death): Arg REGNO now unsigned.
(move_deaths): REGNO, DEADREGNO, DEADEND, OUREND, and I now unsigned.
(reg_bitfield_target_p): REGNO, REGNO, ENDREGNO, and ENDTREGNO
now unsigned.
* convert.c (convert_to_integer): INPREC and OUTPREC now unsigned.
* cse.c (struct qty_table_elem): FIRST_REG and LAST_REG now unsigned.
(struct cse_reg_info): REGNO now unsigned.
(cached_regno): Now unsigned.
(REGNO_QTY_VALID_P): Add cast.
(make_new_qty, make_regs_eqv, delete_reg_eqiv): Regno args unsigned.
(remove_invalid_regs): Likewise.
(remove_invalid_subreg_refs): Likewise; arg WORD also unsigned
as are variables END and I.
(get_cse_reg_info, insert): Likewise.
(mention_regs, invalidate_for_call): REGNO, ENDREGNO, and I unsigned.
(canon_hash): Likewise.
(insert_regs, lookup_for_remove): REGNO now unsigned.
(invalidate): REGNO, ENDREGNO, TREGNO, and TENDREGNO now unsigned.
New variable RN.
* dbxout.c (dbxout_parms, dbxout_reg_parms): Don't check for REGNO < 0.
* dwarf2out.c (dwarf2ou_frame_debug_expr): Remove cast.
* emit-rtl.c (subreg_realpart_p): Add cast.
(operand_subword): Arg I is now unsigned as is var PARTWORDS.
(operand_subword_force): Arg I is now unsigned.
* except.c (eh_regs): Variable I is now unsigned.
* explow.c (hard_function_value): BYTES is unsigned HOST_WIDE_INT.
* expmed.c (store_fixed_bit_field): Position is HOST_WIDE_INT;
length is unsigned HOST_WIDE_INT; likewise for internal variables.
(store_split_bit_field, extract_fixed_bit_field): Likewise.
(extract_split_bit_field, store_bit_field, extract_bit_field):
Likewise.
* expr.c (store_constructor_fields, store_constructor, store_field):
Positions are HOST_WIDE_INT and lengths are unsigned HOST_WIDE_INT.
(expand_assignment, expand_expr, expand_expr_unaligned): Likewise.
(do_jump): Likewise.
(move_by_pieces, move_by_pieces_ninsns, clear_by_pieces):
MAX_SIZE is now unsigned.
(emit_group_load): BYTEPOS is HOST_WIDE_INT; BYTELEN is unsigned.
(emit_group_store): Likewise.
(emit_move_insn): I now unsigned.
(store_constructor): Use host_integerp, tree_low_cst, and
bitsize_unit_node.
(get_inner_reference): Return bitpos and bitsize as HOST_WIDE_INT.
Rework all calculations to use trees and new fields.
* expr.h (promoted_input_arg): Regno now unsigned.
(store_bit_field, extract_bit_field): Adjust types of pos and size.
(mark_seen_cases): Arg is HOST_WIDE_INT.
* flow.c (verify_wide_reg_1): REGNO now unsigned.
* fold-const.c (decode_field_reference): Size and pos HOST_WIDE_INT;
precisions and alignments are unsigned.
(optimize_bit_field_compare, fold_truthop): Likewise.
(int_const_binop): Adjust threshold for size_int_type_wide call.
(fold_convert): Likewise.
(size_int_type_wide): Make table larger and fix thinko that only
had half of table used.
(all_ones_mask_p, fold): Precisions are unsigned.
* function.c (put_reg_info_stack): REGNO is unsigned.
(instantiate_decl): Size is HOST_WIDE_INT.
(instantiate_virtual_regs): I is unsigned.
(assign_parms): REGNO, REGNOI, and REGNOR are unsigned.
(promoted_input_arg): REGNO is unsigned.
* function.h (struct function): x_max_parm_reg is now unsigned.
* gcse.c (max_gcse_regno): Now unsigned.
(struct null_pointer_info): min_reg and max_reg now unsigned.
(lookup_set, next_set): REGNO arg now unsigned.
(compute_hash_table): REGNO and I now unsigned.
(handle_avail_expr): regnum_for_replacing now unsigned.
(cprop_insn): REGNO now unsigned.
(delete_null_pointer_checks_1): BLOCK_REG now pointer to unsigned.
* ggc-common.c (ggc_mark_tree_children, case FIELD_DECL): New case.
* global.c (set_preference): SRC_REGNO, DEST_REGNO, and I now unsigned.
* hard-reg-set.h (reg_class_size): Now unsigned.
* integrate.c (mark_stores): LAST_REG and I now unsigned; new UREGNO.
* jump.c (mark_modified_reg): I now unsigned; add cast.
(rtx_equal_for_thread_p): Add cast.
* loop.c (max_reg_before_loop): Now unsigned.
(struct_movable): REGNO now unsigned.
(try_copy_prop): REGNO arg unsigned.
(regs_match_p): XN and YN now unsigned.
(consec_sets_invariant_p, maybe_eliminate_biv): REGNO now unsigned.
(strength_reduce): Likewise; NREGS also unsigned.
(first_increment_giv, last_increment_giv unsigned): Now unsigned.
* loop.h (struct iv_class): REGNO now unsigned.
(max_reg_before_loop, first_increment_giv, last_increment_giv):
Now unsigned.
* machmode.h (mode_size, mode_unit_size): Now unsigned.
(mode_for_size, smallest_mode_for_size): Pass size as unsigned.
* optabs.c (expand_binop): I and NWORDS now unsigned.
(expand_unop): I now unsigned.
* print-tree.c (print_node): Don't print DECL_FIELD_BITPOS, but do
print DECL_FIELD_OFFSET and DECL_FIELD_BIT_OFFSET.
* real.c (significand_size): Now returns unsigned.
* real.h (significand_size): Likewise.
* regclass.c (reg_class_size): Now unsigned.
(choose_hard_reg_mode): Both operands now unsigned.
(record_reg_classes): REGNO and NR now unsigned.
(reg_scan): NREGS now unsigned.
(reg_scan_update): old_max_regno now unsigned.
(reg_scan_mark_refs): Arg MIN_REGNO and var REGNO now unsigned.
* reload.c (find_valid_class): BEST_SIZE now unsigned.
(find_dummy_reload): REGNO, NWORDS, and I now unsigned.
(hard_reg_set_here_p): Args BEG_REGNO and END_REGNO now unsigned.
Likewise for variable R.
(refers_to_regno_for_reload_p): Args REGNO and END_REGNO now unsigned,
as are variables INNER_REGNO and INNER_ENDREGNO; add new variable R.
(find_equiv_reg): Add casts.
(regno_clobbered_p): Arg REGNO now unsigned.
* reload.h (struct reload): NREGS now unsigned.
(refers_to_regno_for_reload_p): Regno args are unsigned.
(regno_clobbered_p): Likewise.
* reload1.c (reg_max_ref_width, spill_stack_slot_width): Now unsigned.
(compute_use_by_pseudos): REGNO now unsigned.
(find_reg): I and J now unsigned, new variable K, and change loop
variables accordingly; THIS_NREGS now unsigned.
(alter_reg): INHERENT_SIZE and TOTAL_SIZE now unsigned.
(spill_hard_reg): REGNO arg now unsigned; add casts.
(forget_old_reloads_1): REGNO, NR, and I now unsigned.
(mark_reload_reg_in_use): Arg REGNO and vars NREGS and I now unsigned.
(clear_reload_reg_in_use): Arg REGNO and vars NREGS, START_REGNO,
END_REGNO, CONFLICT_START, and CONFLICT_END now unsigned.
(reload_reg_free_p, reload_reg_reaches_end_p): Arg REGNO now unsigned.
(choose_reload_regs): MAX_GROUP_SIZE now unsigned.
(emit_reload_insns): REGNO now unsigned.
(reload_cse_move2add): Add cast.
(move2add_note_store): REGNO and I now unsigned; new variable ENDREGNO
and rework loop.
* resource.c (mark_referenced_resources, mark_set_resources): New
variable R; REGNO and LAST_REGNO now unsigned.
(mark_target_live_regs): J and REGNO now unsigned.
* rtl.c (mode_size, mode_unit_size): Now unsigned.
* rtl.h (union rtunion_def): New field rtuint.
(XCUINT): New macro.
(ADDRESSOF_REGNO, REGNO, SUBREG_WORD): New XCUINT.
(operand_subword, operand_subword_force): Word number is unsigned.
(choose_hard_reg_mode): Operands are unsigned.
(refers_to-regno_p, dead_or_set_regno_p): Regno arg is unsigned.
(find_regno_note, find_regno_fusage, replace_regs): Likewise.
(regno_use_in, combine_instructions, remove_death): Likewise.
(reg_scan, reg_scan_update): Likewise.
(extended_count): Return is unsigned.
* rtlanal.c (refers_to_regno_p): Args REGNO and ENDREGNO and vars I,
INNER_REGNO, and INNER_ENDREGNO now unsigned; new variable X_REGNO.
(reg_overlap_mentioned_p): REGNO and ENDREGNO now unsigned.
(reg_set_last_first_regno, reg_set_last_last_regno): Now unsigned.
(reg_reg_last_1): FIRS and LAST now unsigned.
(dead_or_set_p): REGNO, LAST_REGNO, and I now unsigned.
(dead_or_set_regno_p): Arg TEST_REGNO and vars REGNO and ENDREGNO
now unsigned.
(find_regno_note, regno_use_in): Arg REGNO now unsigned.
(find_regno_fusage): Likewise; also var REGNOTE now unsigned.
(find_reg_fusage): Variables REGNO, END_REGNO, and I now unsigned.
(replace_regs): Arg NREGS now unsigned.
* sdbout.c (sdbout_parms, sdbout_reg_parms): Don't check REGNO < 0.
* simplify-rtx.c (simplify_unary_operation): WIDTH now unsigned.
(simplify_binary_operation): Likewise.
(cselib_invalidate_regno): Arg REGNO and variables ENDREGNO, I, and
THIS_LAST now unsigned.
(cselib_record_set): Add cast.
* ssa.c (ssa_max_reg_num): Now unsigned.
(rename_block): REGNO now unsigned.
* stmt.c (expand_return): Bit positions unsigned HOST_WIDE_INT;
sizes now unsigned.
(all_cases_count): Just return -1 not -2.
COUNT, MINVAL, and LASTVAL now HOST_WIDE_INT.
Rework tests to use trees whenever possible.
Use host_integerp and tree_low_cst.
(mark_seen_cases): COUNT arg now HOST_WIDE_INT;
Likewise variable NEXT_NODE_OFFSET; XLO now unsigned.
(check_for_full_enumeration_handing): BYTES_NEEDED, I to HOST_WIDE_INT.
* stor-layout.c (mode_for_size): SIZE arg now unsigned.
(smallest_mode_for_size): Likewise.
(layout_decl): Simplify handing of a specified DECL_SIZE_UNIT.
KNOWN_ALIGN is now an alignment, so simplify code.
Don't turn off DECL_BIT_FIELD if field is BLKmode, but not type.
(start_record_layout): Renamed from new_record_layout_info.
Update to new fields.
(debug_rli, normalize_rli, rli_size_unit_so_far, rli_size_so_far):
New functions.
(place_union_field): Renamed from layout_union_field.
Update to use new fields in rli.
(place_field): Renamed from layout_field.
Major rewrite to use new fields in rli; pass alignment to layout_decl.
(finalize_record_size): Rework to use new fields in rli and handle
union.
(compute_record_mode): Rework to simplify and to use new DECL fields.
(finalize_type_size): Make rounding more consistent.
(finish_union_layout): Deleted.
(layout_type, case VOID_TYPE): Don't set TYPE_SIZE_UNIT either.
(layout_type, case RECORD_TYPE): Call new function names.
(initialize_sizetypes): Set TYPE_IS_SIZETYPE.
(set_sizetype): Set TYPE_IS_SIZETYPE earlier.
(get_best_mode): UNIT is now unsigned; remove casts.
* tree.c (bit_position): Compute from new fields.
(byte_position, int_byte_position): New functions.
(print_type_hash_statistics): Cast to remove warning.
(build_range_type): Use host_integerp and tree_low_cst to try to hash.
(build_index_type): Likewise; make subtype of sizetype.
(build_index_2_type): Pass sizetype to build_range_type.
(build_common_tree_nodes): Use size_int and bitsize_int to
initialize nodes; add bitsize_{zero,one,unit}_node.
* tree.h (DECL_FIELD_CONTEXT): Use FIELD_DECL_CHECK.
(DECL_BIT_FIELD_TYPE, DECL_QUALIFIER, DECL_FCONTEXT): Likewise.
(DECL_PACKED, DECL_BIT_FIELD): Likewise.
(DECL_FIELD_BITPOS): Deleted.
(DECL_FIELD_OFFSET, DECL_FIELD_BIT_OFFSET): New fields.
(DECL_RESULT, DECL_SAVED_INSNS): Use FUNCTION_DECL_CHECK.
(DECL_FRAME_SIZE, DECL_FUNCTION_CODE, DECL_NO_STATIC_CHAIN): Likewise.
(DECL_INLINE, DECL_BUILT_IN_NONANSI, DECL_IS_MALLOC): Likewise.
(DECL_BUILT_IN_CLASS, DECL_STATIC_CONSTRUCTOR): Likewise.
(DECL_STATIC_DESTRUCTOR, DECL_NO_CHECK_MEMORY_USAGE): Likewise.
(DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT, DECL_NO_LIMIT_STACK) Likewise.
(DECL_ORIGINAL_TYPE, TYPE_DECL_SUPPRESS_DEBUG): Use TYPE_DECL_CHECK.
(DECL_ARG_TYPE_AS_WRITEN, DECL_ARG_TYPE): Use PARM_DECL_CHECK.
(DECL_INCOMING_RTL, DECL_TRANSPARENT_UNION): Likewise.
(DECL_ALIGN): Adjust to new field in union.
(DECL_OFFSET_ALIGN): New field.
(DECL_ERROR_ISSUED, DECL_TOO_LATE): Use LABEL_DECL_CHECK.
(DECL_IN_TEXT_SECTION): Use VAR_DECL_CHECK.
(union tree_decl): Add struct for both aligns.
(enum tree_index): Add TI_BITSIZE_{ZERO,ONE,UNIT}.
(bitsize_zero_node, bitsize_one_node, bitsize_unit_node): Added.
(struct record_layout_info): Rework fields to have offset
alignment and byte and bit position.
(start_record_layout, place_field): Renamed from old names.
(rli_size_so_far, rli_size_unit_so_far, normalize_rli): New decls.
(byte_position, int_byte_position): Likewise.
(get_inner_reference): Change types of position and length.
* unroll.c (unroll_loop): New variable R; use for some loops.
MAX_LOCAL_REGNUM and MAXREGNUM now unsigned.
(calculate_giv_inc): Arg REGNO now unsigned.
(copy_loop_body): REGNO and SRC_REGNO now unsigned.
* varasm.c (assemble_variable): Clean up handling of size using
host_integerp and tree_low_cst.
(decode_addr_const): Use byte, not bit, position.
(output_constructor): bitpos and offsets are HOST_WIDE_INT;
use tree_low_cst and int_bit_position.
* objc/objc-act.c (build_ivar_list_initializer): Use byte_position.
* ch/actions.c (check_missing_cases): BYTES_NEEDED is HOST_WIDE_INT.
* ch/typeck.c (expand_constant_to_buffer): Use int_byte_position.
(extract_constant_from_buffer): Likewise.
* cp/class.c (build_vbase_pointer_fields): layout_field now
place_field.
(get_vfield_offset): Use byte_position.
(set_rtti_entry): Set OFFSET to ssizetype zero.
(get_binfo_offset_as_int): Deleted.
(dfs_record_base_offsets): Use tree_low_cst.
(dfs_search_base_offsets): Likewise.
(layout_nonempty_base_or_field): Reflect changes in RLI format
and call byte_position.
(layout_empty_base): Convert offset to ssizetype.
(build_base_field): use rli_size_unit_so_far.
(dfs_propagate_binfo_offsets): Do computation in proper type.
(layout_virtual_bases): Pass ssizetype to propagate_binfo_offsets.
(layout_class_type): Reflect changes in RLI names and fields.
(finish_struct_1): Set DECL_FIELD_OFFSET.
* cp/dump.c (dequeue_and_dump): Call bit_position.
* cp/expr.c (cplus_expand_constant): Use byte_position.
* cp/rtti.c (expand_class_desc): Use bitsize_one_node.
* cp/typeck.c (build_component_addr): Use byte_position and don't
special case for zero offset.
* f/com.c (ffecom_tree_canonize_ptr_): Use bitsize_zero_node.
(ffecom_tree_canonize_ref_): Likewise.
* java/class.c (make_field_value): Use byte_position.
* java/expr.c (JAVA_ARRAY_LENGTH_OFFSET): Use byte_position.
(java_array_data_offset): Likewise.
* java/java-tree.h (MAYBE_CREATE_TYPE_TYPE_LANG_SPECIFIC): Add case to
bzero call.
From-SVN: r32742
2000-03-25 19:34:13 +01:00
|
|
|
|
unsigned int r = REGNO (op0);
|
|
|
|
|
|
1992-02-28 11:23:25 +01:00
|
|
|
|
/* See if this reg overlaps range under consideration. */
|
|
|
|
|
if (r < end_regno
|
|
|
|
|
&& r + HARD_REGNO_NREGS (r, GET_MODE (op0)) > beg_regno)
|
|
|
|
|
return 1;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
else if (GET_CODE (x) == PARALLEL)
|
|
|
|
|
{
|
2001-10-11 05:16:15 +02:00
|
|
|
|
int i = XVECLEN (x, 0) - 1;
|
* Rework fields used to describe positions of bitfields and
modify sizes to be unsigned and use HOST_WIDE_INT.
* alias.c (reg_known_value_size): Now unsigned.
* c-typeck.c (build_unary_op, case ADDR_EXPR): Use byte_position.
(really_start_incremental_init): Use bitsize_zero_node.
(push_init_level, pop_init_level, output_init_element): Likewise.
Use bitsize_unit_node and bitsize_one_node.
(output_pending_init_elements, process_init_element): Likewise.
* combine.c (combine_max_regno, reg_sign_bit_copies): Now unsigned.
(make_extraction): Position and length HOST_WIDE_INT and unsigned
HOST_WIDE_INT, respectively.
(get_pos_from_mask): Passed in value is unsigned HOST_WIDE_INT.
(num_sign_bit_copies): Returns unsigned.
BITWIDTH now unsigned; rework arithmetic.
Remove recursive call from arg to MAX.
(combine_instructions, init_reg_last_arrays): NREGS now unsigned.
(setup_incoming_promotions, can_combine_p, try_combine, simplify_set):
REGNO now unsigned.
(set_nonzero_bit_and_sign_copies): NUM now unsigned.
(find_split_point, expand_compound_operation, make_extraction): LEN
now unsigned HOST_WIDE_INT, POS now HOST_WIDE_INT.
(make_field_assignment): Likewise.
(combine_simplify_rtx): Add cast.
(expand_compound_operation): MODEWIDTH now unsigned; rework arithmetic.
(force_to_mode): WIDTH now unsigned; add cast.
(if_then_else_cond): SIZE now unsigned.
(nonzero_bits): MODE_WIDTH, RESULT_WIDTH, and WIDTH now unsigned.
(extended_count): Now returns unsigned.
(simplify_shift_const): COUNT unsigned; arg is now INPUT_COUNT.
Add SIGNED_COUNT variable; MODE_WORDS and FIRST_COUNT now unsigned.
(simplify_comparison): MODE_WIDTH now unsigned.
(update_table_tick): REGNO and ENDREGNO now unsigned; new var R.
(mark_used_regs_combine): Likewise; rework arithmetic.
(record_value_for_reg): REGNO, ENDREGNO, and I now unsigned.
(record_dead_and_set_regs, reg_dead_at_p, distribute_notes): Likewise.
(record_promoted_value): REGNO now unsigned.
(get_last_value_validate): REGNO, ENDREGNO, and J now unsigned.
(get_last_value): REGNO now unsigned.
(use_crosses_set_p): REGNO and ENDREGNO now unsigned.
(reg_dead_regno, reg_dead_endregno): Now unsigned.
(remove_death): Arg REGNO now unsigned.
(move_deaths): REGNO, DEADREGNO, DEADEND, OUREND, and I now unsigned.
(reg_bitfield_target_p): REGNO, REGNO, ENDREGNO, and ENDTREGNO
now unsigned.
* convert.c (convert_to_integer): INPREC and OUTPREC now unsigned.
* cse.c (struct qty_table_elem): FIRST_REG and LAST_REG now unsigned.
(struct cse_reg_info): REGNO now unsigned.
(cached_regno): Now unsigned.
(REGNO_QTY_VALID_P): Add cast.
(make_new_qty, make_regs_eqv, delete_reg_eqiv): Regno args unsigned.
(remove_invalid_regs): Likewise.
(remove_invalid_subreg_refs): Likewise; arg WORD also unsigned
as are variables END and I.
(get_cse_reg_info, insert): Likewise.
(mention_regs, invalidate_for_call): REGNO, ENDREGNO, and I unsigned.
(canon_hash): Likewise.
(insert_regs, lookup_for_remove): REGNO now unsigned.
(invalidate): REGNO, ENDREGNO, TREGNO, and TENDREGNO now unsigned.
New variable RN.
* dbxout.c (dbxout_parms, dbxout_reg_parms): Don't check for REGNO < 0.
* dwarf2out.c (dwarf2ou_frame_debug_expr): Remove cast.
* emit-rtl.c (subreg_realpart_p): Add cast.
(operand_subword): Arg I is now unsigned as is var PARTWORDS.
(operand_subword_force): Arg I is now unsigned.
* except.c (eh_regs): Variable I is now unsigned.
* explow.c (hard_function_value): BYTES is unsigned HOST_WIDE_INT.
* expmed.c (store_fixed_bit_field): Position is HOST_WIDE_INT;
length is unsigned HOST_WIDE_INT; likewise for internal variables.
(store_split_bit_field, extract_fixed_bit_field): Likewise.
(extract_split_bit_field, store_bit_field, extract_bit_field):
Likewise.
* expr.c (store_constructor_fields, store_constructor, store_field):
Positions are HOST_WIDE_INT and lengths are unsigned HOST_WIDE_INT.
(expand_assignment, expand_expr, expand_expr_unaligned): Likewise.
(do_jump): Likewise.
(move_by_pieces, move_by_pieces_ninsns, clear_by_pieces):
MAX_SIZE is now unsigned.
(emit_group_load): BYTEPOS is HOST_WIDE_INT; BYTELEN is unsigned.
(emit_group_store): Likewise.
(emit_move_insn): I now unsigned.
(store_constructor): Use host_integerp, tree_low_cst, and
bitsize_unit_node.
(get_inner_reference): Return bitpos and bitsize as HOST_WIDE_INT.
Rework all calculations to use trees and new fields.
* expr.h (promoted_input_arg): Regno now unsigned.
(store_bit_field, extract_bit_field): Adjust types of pos and size.
(mark_seen_cases): Arg is HOST_WIDE_INT.
* flow.c (verify_wide_reg_1): REGNO now unsigned.
* fold-const.c (decode_field_reference): Size and pos HOST_WIDE_INT;
precisions and alignments are unsigned.
(optimize_bit_field_compare, fold_truthop): Likewise.
(int_const_binop): Adjust threshold for size_int_type_wide call.
(fold_convert): Likewise.
(size_int_type_wide): Make table larger and fix thinko that only
had half of table used.
(all_ones_mask_p, fold): Precisions are unsigned.
* function.c (put_reg_info_stack): REGNO is unsigned.
(instantiate_decl): Size is HOST_WIDE_INT.
(instantiate_virtual_regs): I is unsigned.
(assign_parms): REGNO, REGNOI, and REGNOR are unsigned.
(promoted_input_arg): REGNO is unsigned.
* function.h (struct function): x_max_parm_reg is now unsigned.
* gcse.c (max_gcse_regno): Now unsigned.
(struct null_pointer_info): min_reg and max_reg now unsigned.
(lookup_set, next_set): REGNO arg now unsigned.
(compute_hash_table): REGNO and I now unsigned.
(handle_avail_expr): regnum_for_replacing now unsigned.
(cprop_insn): REGNO now unsigned.
(delete_null_pointer_checks_1): BLOCK_REG now pointer to unsigned.
* ggc-common.c (ggc_mark_tree_children, case FIELD_DECL): New case.
* global.c (set_preference): SRC_REGNO, DEST_REGNO, and I now unsigned.
* hard-reg-set.h (reg_class_size): Now unsigned.
* integrate.c (mark_stores): LAST_REG and I now unsigned; new UREGNO.
* jump.c (mark_modified_reg): I now unsigned; add cast.
(rtx_equal_for_thread_p): Add cast.
* loop.c (max_reg_before_loop): Now unsigned.
(struct_movable): REGNO now unsigned.
(try_copy_prop): REGNO arg unsigned.
(regs_match_p): XN and YN now unsigned.
(consec_sets_invariant_p, maybe_eliminate_biv): REGNO now unsigned.
(strength_reduce): Likewise; NREGS also unsigned.
(first_increment_giv, last_increment_giv unsigned): Now unsigned.
* loop.h (struct iv_class): REGNO now unsigned.
(max_reg_before_loop, first_increment_giv, last_increment_giv):
Now unsigned.
* machmode.h (mode_size, mode_unit_size): Now unsigned.
(mode_for_size, smallest_mode_for_size): Pass size as unsigned.
* optabs.c (expand_binop): I and NWORDS now unsigned.
(expand_unop): I now unsigned.
* print-tree.c (print_node): Don't print DECL_FIELD_BITPOS, but do
print DECL_FIELD_OFFSET and DECL_FIELD_BIT_OFFSET.
* real.c (significand_size): Now returns unsigned.
* real.h (significand_size): Likewise.
* regclass.c (reg_class_size): Now unsigned.
(choose_hard_reg_mode): Both operands now unsigned.
(record_reg_classes): REGNO and NR now unsigned.
(reg_scan): NREGS now unsigned.
(reg_scan_update): old_max_regno now unsigned.
(reg_scan_mark_refs): Arg MIN_REGNO and var REGNO now unsigned.
* reload.c (find_valid_class): BEST_SIZE now unsigned.
(find_dummy_reload): REGNO, NWORDS, and I now unsigned.
(hard_reg_set_here_p): Args BEG_REGNO and END_REGNO now unsigned.
Likewise for variable R.
(refers_to_regno_for_reload_p): Args REGNO and END_REGNO now unsigned,
as are variables INNER_REGNO and INNER_ENDREGNO; add new variable R.
(find_equiv_reg): Add casts.
(regno_clobbered_p): Arg REGNO now unsigned.
* reload.h (struct reload): NREGS now unsigned.
(refers_to_regno_for_reload_p): Regno args are unsigned.
(regno_clobbered_p): Likewise.
* reload1.c (reg_max_ref_width, spill_stack_slot_width): Now unsigned.
(compute_use_by_pseudos): REGNO now unsigned.
(find_reg): I and J now unsigned, new variable K, and change loop
variables accordingly; THIS_NREGS now unsigned.
(alter_reg): INHERENT_SIZE and TOTAL_SIZE now unsigned.
(spill_hard_reg): REGNO arg now unsigned; add casts.
(forget_old_reloads_1): REGNO, NR, and I now unsigned.
(mark_reload_reg_in_use): Arg REGNO and vars NREGS and I now unsigned.
(clear_reload_reg_in_use): Arg REGNO and vars NREGS, START_REGNO,
END_REGNO, CONFLICT_START, and CONFLICT_END now unsigned.
(reload_reg_free_p, reload_reg_reaches_end_p): Arg REGNO now unsigned.
(choose_reload_regs): MAX_GROUP_SIZE now unsigned.
(emit_reload_insns): REGNO now unsigned.
(reload_cse_move2add): Add cast.
(move2add_note_store): REGNO and I now unsigned; new variable ENDREGNO
and rework loop.
* resource.c (mark_referenced_resources, mark_set_resources): New
variable R; REGNO and LAST_REGNO now unsigned.
(mark_target_live_regs): J and REGNO now unsigned.
* rtl.c (mode_size, mode_unit_size): Now unsigned.
* rtl.h (union rtunion_def): New field rtuint.
(XCUINT): New macro.
(ADDRESSOF_REGNO, REGNO, SUBREG_WORD): New XCUINT.
(operand_subword, operand_subword_force): Word number is unsigned.
(choose_hard_reg_mode): Operands are unsigned.
(refers_to-regno_p, dead_or_set_regno_p): Regno arg is unsigned.
(find_regno_note, find_regno_fusage, replace_regs): Likewise.
(regno_use_in, combine_instructions, remove_death): Likewise.
(reg_scan, reg_scan_update): Likewise.
(extended_count): Return is unsigned.
* rtlanal.c (refers_to_regno_p): Args REGNO and ENDREGNO and vars I,
INNER_REGNO, and INNER_ENDREGNO now unsigned; new variable X_REGNO.
(reg_overlap_mentioned_p): REGNO and ENDREGNO now unsigned.
(reg_set_last_first_regno, reg_set_last_last_regno): Now unsigned.
(reg_reg_last_1): FIRS and LAST now unsigned.
(dead_or_set_p): REGNO, LAST_REGNO, and I now unsigned.
(dead_or_set_regno_p): Arg TEST_REGNO and vars REGNO and ENDREGNO
now unsigned.
(find_regno_note, regno_use_in): Arg REGNO now unsigned.
(find_regno_fusage): Likewise; also var REGNOTE now unsigned.
(find_reg_fusage): Variables REGNO, END_REGNO, and I now unsigned.
(replace_regs): Arg NREGS now unsigned.
* sdbout.c (sdbout_parms, sdbout_reg_parms): Don't check REGNO < 0.
* simplify-rtx.c (simplify_unary_operation): WIDTH now unsigned.
(simplify_binary_operation): Likewise.
(cselib_invalidate_regno): Arg REGNO and variables ENDREGNO, I, and
THIS_LAST now unsigned.
(cselib_record_set): Add cast.
* ssa.c (ssa_max_reg_num): Now unsigned.
(rename_block): REGNO now unsigned.
* stmt.c (expand_return): Bit positions unsigned HOST_WIDE_INT;
sizes now unsigned.
(all_cases_count): Just return -1 not -2.
COUNT, MINVAL, and LASTVAL now HOST_WIDE_INT.
Rework tests to use trees whenever possible.
Use host_integerp and tree_low_cst.
(mark_seen_cases): COUNT arg now HOST_WIDE_INT;
Likewise variable NEXT_NODE_OFFSET; XLO now unsigned.
(check_for_full_enumeration_handing): BYTES_NEEDED, I to HOST_WIDE_INT.
* stor-layout.c (mode_for_size): SIZE arg now unsigned.
(smallest_mode_for_size): Likewise.
(layout_decl): Simplify handing of a specified DECL_SIZE_UNIT.
KNOWN_ALIGN is now an alignment, so simplify code.
Don't turn off DECL_BIT_FIELD if field is BLKmode, but not type.
(start_record_layout): Renamed from new_record_layout_info.
Update to new fields.
(debug_rli, normalize_rli, rli_size_unit_so_far, rli_size_so_far):
New functions.
(place_union_field): Renamed from layout_union_field.
Update to use new fields in rli.
(place_field): Renamed from layout_field.
Major rewrite to use new fields in rli; pass alignment to layout_decl.
(finalize_record_size): Rework to use new fields in rli and handle
union.
(compute_record_mode): Rework to simplify and to use new DECL fields.
(finalize_type_size): Make rounding more consistent.
(finish_union_layout): Deleted.
(layout_type, case VOID_TYPE): Don't set TYPE_SIZE_UNIT either.
(layout_type, case RECORD_TYPE): Call new function names.
(initialize_sizetypes): Set TYPE_IS_SIZETYPE.
(set_sizetype): Set TYPE_IS_SIZETYPE earlier.
(get_best_mode): UNIT is now unsigned; remove casts.
* tree.c (bit_position): Compute from new fields.
(byte_position, int_byte_position): New functions.
(print_type_hash_statistics): Cast to remove warning.
(build_range_type): Use host_integerp and tree_low_cst to try to hash.
(build_index_type): Likewise; make subtype of sizetype.
(build_index_2_type): Pass sizetype to build_range_type.
(build_common_tree_nodes): Use size_int and bitsize_int to
initialize nodes; add bitsize_{zero,one,unit}_node.
* tree.h (DECL_FIELD_CONTEXT): Use FIELD_DECL_CHECK.
(DECL_BIT_FIELD_TYPE, DECL_QUALIFIER, DECL_FCONTEXT): Likewise.
(DECL_PACKED, DECL_BIT_FIELD): Likewise.
(DECL_FIELD_BITPOS): Deleted.
(DECL_FIELD_OFFSET, DECL_FIELD_BIT_OFFSET): New fields.
(DECL_RESULT, DECL_SAVED_INSNS): Use FUNCTION_DECL_CHECK.
(DECL_FRAME_SIZE, DECL_FUNCTION_CODE, DECL_NO_STATIC_CHAIN): Likewise.
(DECL_INLINE, DECL_BUILT_IN_NONANSI, DECL_IS_MALLOC): Likewise.
(DECL_BUILT_IN_CLASS, DECL_STATIC_CONSTRUCTOR): Likewise.
(DECL_STATIC_DESTRUCTOR, DECL_NO_CHECK_MEMORY_USAGE): Likewise.
(DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT, DECL_NO_LIMIT_STACK) Likewise.
(DECL_ORIGINAL_TYPE, TYPE_DECL_SUPPRESS_DEBUG): Use TYPE_DECL_CHECK.
(DECL_ARG_TYPE_AS_WRITEN, DECL_ARG_TYPE): Use PARM_DECL_CHECK.
(DECL_INCOMING_RTL, DECL_TRANSPARENT_UNION): Likewise.
(DECL_ALIGN): Adjust to new field in union.
(DECL_OFFSET_ALIGN): New field.
(DECL_ERROR_ISSUED, DECL_TOO_LATE): Use LABEL_DECL_CHECK.
(DECL_IN_TEXT_SECTION): Use VAR_DECL_CHECK.
(union tree_decl): Add struct for both aligns.
(enum tree_index): Add TI_BITSIZE_{ZERO,ONE,UNIT}.
(bitsize_zero_node, bitsize_one_node, bitsize_unit_node): Added.
(struct record_layout_info): Rework fields to have offset
alignment and byte and bit position.
(start_record_layout, place_field): Renamed from old names.
(rli_size_so_far, rli_size_unit_so_far, normalize_rli): New decls.
(byte_position, int_byte_position): Likewise.
(get_inner_reference): Change types of position and length.
* unroll.c (unroll_loop): New variable R; use for some loops.
MAX_LOCAL_REGNUM and MAXREGNUM now unsigned.
(calculate_giv_inc): Arg REGNO now unsigned.
(copy_loop_body): REGNO and SRC_REGNO now unsigned.
* varasm.c (assemble_variable): Clean up handling of size using
host_integerp and tree_low_cst.
(decode_addr_const): Use byte, not bit, position.
(output_constructor): bitpos and offsets are HOST_WIDE_INT;
use tree_low_cst and int_bit_position.
* objc/objc-act.c (build_ivar_list_initializer): Use byte_position.
* ch/actions.c (check_missing_cases): BYTES_NEEDED is HOST_WIDE_INT.
* ch/typeck.c (expand_constant_to_buffer): Use int_byte_position.
(extract_constant_from_buffer): Likewise.
* cp/class.c (build_vbase_pointer_fields): layout_field now
place_field.
(get_vfield_offset): Use byte_position.
(set_rtti_entry): Set OFFSET to ssizetype zero.
(get_binfo_offset_as_int): Deleted.
(dfs_record_base_offsets): Use tree_low_cst.
(dfs_search_base_offsets): Likewise.
(layout_nonempty_base_or_field): Reflect changes in RLI format
and call byte_position.
(layout_empty_base): Convert offset to ssizetype.
(build_base_field): use rli_size_unit_so_far.
(dfs_propagate_binfo_offsets): Do computation in proper type.
(layout_virtual_bases): Pass ssizetype to propagate_binfo_offsets.
(layout_class_type): Reflect changes in RLI names and fields.
(finish_struct_1): Set DECL_FIELD_OFFSET.
* cp/dump.c (dequeue_and_dump): Call bit_position.
* cp/expr.c (cplus_expand_constant): Use byte_position.
* cp/rtti.c (expand_class_desc): Use bitsize_one_node.
* cp/typeck.c (build_component_addr): Use byte_position and don't
special case for zero offset.
* f/com.c (ffecom_tree_canonize_ptr_): Use bitsize_zero_node.
(ffecom_tree_canonize_ref_): Likewise.
* java/class.c (make_field_value): Use byte_position.
* java/expr.c (JAVA_ARRAY_LENGTH_OFFSET): Use byte_position.
(java_array_data_offset): Likewise.
* java/java-tree.h (MAYBE_CREATE_TYPE_TYPE_LANG_SPECIFIC): Add case to
bzero call.
From-SVN: r32742
2000-03-25 19:34:13 +01:00
|
|
|
|
|
1992-02-28 11:23:25 +01:00
|
|
|
|
for (; i >= 0; i--)
|
|
|
|
|
if (hard_reg_set_here_p (beg_regno, end_regno, XVECEXP (x, 0, i)))
|
|
|
|
|
return 1;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Return 1 if ADDR is a valid memory address for mode MODE,
|
|
|
|
|
and check that each pseudo reg has the proper kind of
|
|
|
|
|
hard reg. */
|
|
|
|
|
|
|
|
|
|
int
|
|
|
|
|
strict_memory_address_p (mode, addr)
|
2000-01-13 01:17:33 +01:00
|
|
|
|
enum machine_mode mode ATTRIBUTE_UNUSED;
|
2001-10-11 05:16:15 +02:00
|
|
|
|
rtx addr;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
{
|
|
|
|
|
GO_IF_LEGITIMATE_ADDRESS (mode, addr, win);
|
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
|
|
win:
|
|
|
|
|
return 1;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Like rtx_equal_p except that it allows a REG and a SUBREG to match
|
|
|
|
|
if they are the same hard reg, and has special hacks for
|
|
|
|
|
autoincrement and autodecrement.
|
|
|
|
|
This is specifically intended for find_reloads to use
|
|
|
|
|
in determining whether two operands match.
|
|
|
|
|
X is the operand whose number is the lower of the two.
|
|
|
|
|
|
|
|
|
|
The value is 2 if Y contains a pre-increment that matches
|
|
|
|
|
a non-incrementing address in X. */
|
|
|
|
|
|
|
|
|
|
/* ??? To be completely correct, we should arrange to pass
|
|
|
|
|
for X the output operand and for Y the input operand.
|
|
|
|
|
For now, we assume that the output operand has the lower number
|
|
|
|
|
because that is natural in (SET output (... input ...)). */
|
|
|
|
|
|
|
|
|
|
int
|
|
|
|
|
operands_match_p (x, y)
|
2001-10-11 05:16:15 +02:00
|
|
|
|
rtx x, y;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
{
|
2001-10-11 05:16:15 +02:00
|
|
|
|
int i;
|
|
|
|
|
RTX_CODE code = GET_CODE (x);
|
|
|
|
|
const char *fmt;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
int success_2;
|
1999-09-01 16:30:35 +02:00
|
|
|
|
|
1992-02-28 11:23:25 +01:00
|
|
|
|
if (x == y)
|
|
|
|
|
return 1;
|
|
|
|
|
if ((code == REG || (code == SUBREG && GET_CODE (SUBREG_REG (x)) == REG))
|
|
|
|
|
&& (GET_CODE (y) == REG || (GET_CODE (y) == SUBREG
|
|
|
|
|
&& GET_CODE (SUBREG_REG (y)) == REG)))
|
|
|
|
|
{
|
2001-10-11 05:16:15 +02:00
|
|
|
|
int j;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
|
|
|
|
if (code == SUBREG)
|
|
|
|
|
{
|
|
|
|
|
i = REGNO (SUBREG_REG (x));
|
|
|
|
|
if (i >= FIRST_PSEUDO_REGISTER)
|
|
|
|
|
goto slow;
|
Use byte offsets in SUBREGs instead of words.
2001-04-03 Jakub Jelinek <jakub@redhat.com>
David S. Miller <davem@pierdol.cobaltmicro.com>
Andrew MacLeod <amacleod@redhat.com>
Use byte offsets in SUBREGs instead of words.
* alias.c (nonlocal_mentioned_p): Use subreg_regno function.
* caller-save.c (mark_set_regs): Change callers of subreg_hard_regno
to pass new argument.
(add_stored_regs): Use subreg_regno_offset function.
* calls.c (expand_call): For non-paradoxical SUBREG take endianess
into account.
(precompute_arguments): Use gen_lowpart_SUBREG.
* combine.c (try_combine): Replace explicit XEXP with SUBREG_REG.
(combine_simplify_rtx): Rework to use SUBREG_BYTE.
(simplify_set): Rework to use SUBREG_BYTE.
(expand_field_assignment): Use SUBREG_BYTE.
(make_extraction): Use SUBREG_BYTE.
(if_then_else_cond): Use SUBREG_BYTE.
(apply_distributive_law): Use SUBREG_BYTE and fixup subreg comments.
(gen_lowpart_for_combine): Compute full byte offset.
* cse.c (mention_regs): Use SUBREG_BYTE.
(remove_invalid_subreg_refs): Rework to use SUBREG_BYTE.
(canon_hash): Use SUBREG_BYTE.
(fold_rtx): Pass SUBREG_BYTE div UNITS_PER_WORD to operand_subword.
(gen_lowpart_if_possible): Formatting.
* dbxout.c (dbxout_symbol_location): Compute SUBREG hard regnos
correctly.
* dwarf2out.c (is_pseudo_reg): Fixup explicit XEXP into SUBREG_REG
(mem_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
(loc_descriptor): Fixup explicit XEXP into SUBREG_REG
* dwarfout.c (is_pseudo_reg): Fixup explicit XEXP into SUBREG_REG
(output_mem_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
(output_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
* emit-rtl.c (gen_rtx_SUBREG): New function, used to verify
certain invariants about SUBREGs the compiler creates.
(gen_lowpart_SUBREG): New function.
(subreg_hard_regno): New function to get the final register number.
(gen_lowpart_common): Use SUBREG_BYTE.
(gen_imagpart): Spacing nits.
(subreg_realpart_p): Use SUBREG_BYTE.
(gen_highpart): Use SUBREG_BYTE.
(subreg_lowpart_p): Always compute endian corrected goal offset,
even at the byte level, then compare against that.
(constant_subword): New function, pulled out all constant cases
from operand_subword and changed second argument name to offset.
(operand_subword): Detect non REG/SUBREG/CONCAT/MEM cases early
and call constant_subword to do the work. Return const0_rtx if
looking for a word outside of OP.
(operand_subword_force): Change second arg name to offset.
* expmed.c (store_bit_field): Use SUBREG_BYTE.
(store_split_bit_field): Use SUBREG_BYTE.
(extract_bit_field): Use SUBREG_BYTE.
(extract_split_bit_field): Use SUBREG_BYTE.
(expand_shift): Use SUBREG_BYTE.
* expr.c (store_expr, expand_expr): Use gen_lowpart_SUBREG.
* final.c (alter_subreg) Use subreg_hard_regno and SUBREG_BYTE.
* flow.c (set_noop_p): Use SUBREG_BYTE.
(mark_set_1): Remove ALTER_HARD_SUBREG. Use subreg_regno_offset instead.
* function.c (fixup_var_refs_1): Fixup explicit XEXP into a SUBREG_REG.
(fixup_memory_subreg): Use SUBREG_BYTE and remove byte endian
correction code.
(optimize_bit_field): Use SUBREG_BYTE.
(purge_addressof_1): Use SUBREG_BYTE.
(purge_single_hard_subreg_set): Use subreg_regno_offset function.
(assign_params): Mark arguments SUBREG_PROMOTED_VAR_P if they are
actually promoted by the caller and PROMOTE_FOR_CALLS_ONLY is true.
* gengenrtl.c (special_rtx): Add SUBREG.
* global.c (mark_reg_store): Use SUBREG_BYTE.
(set_preference): Rework to use subreg_regno_offset and SUBREG_BYTE.
* ifcvt (noce_emit_move_insn): Use SUBREG_BYTE.
* integrate.c (copy_rtx_and_substitute): Use SUBREG_BYTE and make sure
final byte offset is congruent to subreg's mode size.
(subst_constants): Use SUBREG_BYTE.
(mark_stores): Use subreg_regno_offset function.
* jump.c (rtx_renumbered_equal_p, true_regnum): Use subreg_regno_offset
function and SUBREG_BYTE.
* local-alloc.c (combine_regs): Use subreg_regno_offset function.
(reg_is_born): Use subreg_hard_regno.
* recog.c (valid_replace_rtx_1): Use SUBREG_BYTE and remove byte
endian correction code. Don't combine subregs unless resulting
offset aligns with type. Fix subreg constant extraction for DImode.
Simplify SUBREG of VOIDmode CONST_DOUBLE.
(general_operand): Remove dead mode_altering_drug code.
(indirect_operand): Use SUBREG_BYTE.
(constrain_operands): Use subreg_regno_offset function.
* reg-stack.c (get_true_reg): Use subreg_regno_offset function.
* regmove.c (regmove_optimize): Use SUBREG_BYTE.
(optimize_reg_copy_3): Use gen_lowpart_SUBREG.
* regs.h (REG_SIZE): Allow target to override.
(REGMODE_NATURAL_SIZE): New macro which target can override.
* reload.c (reload_inner_reg_of_subreg): subreg_regno should be used
on the entire subreg rtx.
(push_reload): Use SUBREG_BYTE in comments and code.
(find_dummy_reload): Use subreg_regno_offset. Only adjust offsets
for hard registers inside subregs.
(operands_match_p): Use subreg_regno_offset.
(find_reloads): Use SUBREG_BYTE and only advance offset for subregs
containing hard regs.
(find_reload_toplev): Use SUBREG_BYTE. Remove byte endian
corrections when fixing up MEM subregs.
(find_reloads_address_1): Use SUBREG_BYTE, subreg_regno, and
subreg_regno_offset where appropriate.
(find_reloads_subreg_address): Use SUBREG_BYTE. Remove
byte endian corrections when fixing up MEM subregs.
(subst_reloads): When combining two subregs, make sure final
offset is congruent to subreg's mode size.
(find_replacement): Use SUBREG_BYTE and subreg_regno_offset.
(refers_to_regno_for_reload_p): Use subreg_regno.
(reg_overlap_mentioned_for_reload_p): Use subreg_regno_offset.
* reload1.c (eliminate_regs) Use SUBREG_BYTE. Remove byte endian
correction code for memory subreg fixups.
(forget_old_reload_1): Use subreg_regno_offset.
(choose_reload_regs): Use subreg_regno.
(emit_input_reload_insns): Use SUBREG_BYTE.
(reload_combine_note_store): Use subreg_regno_offset.
(move2add_note_store): Use subreg_regno_offset.
* resource.c (update_live_status, mark_referenced_resources): Use
subreg_regno function.
(mark_set_resources): Use subreg_regno function.
* rtl.h (SUBREG_WORD): Rename to SUBREG_BYTE.
(subreg_regno_offset, subreg_regno): Define prototypes.
(subreg_hard_regno, constant_subword, gen_rtx_SUBREG): Newi functions.
(gen_lowpart_SUBREG): Add prototype.
* rtl.texi (subreg): Update to reflect new byte offset representation.
Add mentioning of the effect that BYTES_BIG_ENDIAN has on subregs now.
* rtlanal.c (refers_to_regno_p): Use subreg_regno.
(reg_overlap_mentioned_p): Use subreg_regno.
(replace_regs); Make sure final offset of combined subreg is
congruent to size of subreg's mode.
(subreg_regno_offset): New function.
(subreg_regno): New function.
* sched-vis.c (print_value): Change SUBREG_WORD to SUBREG_BYTE.
* sdbout.c (sdbout_symbol): Compute offset using alter_subreg.
* stmt.c (expand_anon_union_decl): Use gen_lowpart_SUBREG.
* tm.texi (ALTER_HARD_SUBREG): Remove, it is now dead.
(SUBREG_REGNO_OFFSET): Describe SUBREG_REGNO_OFFSET overrides.
* config/a29k/a29k.c (gpc_reg_operand): Use subreg_regno.
(a29k_get_reloaded_address): Use SUBREG_BYTE.
(print_operand): Use SUBREG_BYTE.
* config/alpha/alpha.c (print_operand_address): Use SUBREG_BYTE.
* config/arm/arm.c (arm_reload_in_hi): Use SUBREG_BYTE.
(arm_reload_out_hi): Use SUBREG_BYTE.
* config/d30v/d30v.c (d30v_split_double): Use subreg_regno_offset
instead of SUBREG_WORD.
(d30v_print_operand_memory_reference): Use subreg_regno_offset.
* config/dsp16xx/dsp16xx.md (extendqihi2, zero_extendqihi2): Fix
SUBREG creation to use byte offset.
* config/h8300/h8300.md (Unnamed HImode zero extraction and 16bit
inverted load insns): Fix explicit rtl subregs to use byte
offsets.
* config/i370/i370.md (cmpstrsi, movstrsi, mulsi3, divsi3,
udivsi3, umodsi3): Generate SUBREGs with byte offsets.
* config/i860/i860.c (single_insn_src_p): Use SUBREG_BYTE.
* config/i860/i860.md (mulsi3_big): Fixup explicit SUBREGs in rtl
to use byte offsets.
(unnamed fmlow.dd insn): Fixup SUBREGS to use byte offsets.
* config/i960/i960.md (extendhisi2): Generate SUBREGs with byte
offsets, also make sure it is congruent to SUBREG's mode size.
(extendqisi2, extendqihi2, zero_extendhisi2, zero_extendqisi2,
unnamed ldob insn): Generate SUBREGs with byte offset.
(zero_extendqihi2): SUBREG's are byte offsets.
* config/m68hc11/m68hc11.c (m68hc11_gen_lowpart): Use SUBREG_BYTE.
(m68hc11_gen_highpart): Use SUBREG_BYTE.
* config/m68k/m68k.md (zero_extendhisi2, zero_extendqihi2,
zero-extendqisi2): Generate SUBREGs with byte offset.
(umulsidi3, mulsidi3, subreghi1ashrdi_const32,
subregsi1ashrdi_const32, subreg1lshrdi_const32): Fixup explicit
subregs in rtl to use byte offsets.
* config/m88k/m88k.md (extendsidi2): fixup subregs to use byte offset.
* config/mips/mips.c (mips_move_1word): Use subreg_regno_offset.
(mips_move_2words): Use subreg_regno_offset.
(mips_secondary_reload_class): Use subreg_regno_offset.
* config/mips/mips.md (DImode plus, minus, move, and logical op
splits): Fixup explicit subregs in rtl to use byte offsets.
* config/mn10200/mn10200.c (print_operand): Use subreg_regno function.
* config/mn10300/mn10300.c (print_operand): Use subreg_regno function.
* config/ns32k/ns32k.md (udivmoddisi4): Fix explicit subregs in
rtl to use byte offsets.
* config/pa/pa.c (emit_move_sequence): Use SUBREG_BYTE.
* config/pa/pa.md (floatunssisf2, floatunssidf2, mulsi3): fix explicit
subregs to use byte offsets.
* config/pdp11/pdp11.md (zero_extendhisi2, modhi3, modhi3+1):
Fixup explicit subregs in rtl to use byte offsets.
* config/romp/romp.c (memory_offset_in_range_p): Use SUBREG_BYTE
and remove byte endian correction code.
* config/sh/sh.c (output_movedouble): Use subreg_regno.
(gen_ashift_hi): Use SUBREG_BYTE.
(regs_used): Use subreg_regno_offset.
(machine_dependent_reorg): Use subreg_regno_offset.
* config/sh/sh.h (INDEX_REGISTER_RTX_P): Use SUBREG_BYTE.
* config/sh/sh.md (DImode and DFmode move splits): Use subreg_regno.
(movdf_i4): Subregs are byte offsets now.
* config/sparc/sparc.c (ultra_find_type): Use SUBREG_BYTE.
* config/sparc/sparc.h (ALTER_HARD_SUBREG): Removed.
(REGMODE_NATURAL_SIZE): Override.
(REG_SIZE): For SUBREG check float mode on SUBREG_REG's mode.
* config/sparc/sparc.md (TFmode move splits): Generate SUBREGs
with byte offsets.
(zero_extendhisi2, zero_extendqidi2_insn, extendhisi2,
extendqihi2, sign_extendqihi2_insn, sign_extendqisi2_insn,
extendqidi2): Generate SUBREGs with byte offsets, also make sure
it is congruent to SUBREG's mode size.
(smulsi3_highpart_v8plus): Fix explicit subregs in rtl to use byte
offsets.
(cmp_siqi_trunc, cmp_siqi_trunc_set, cmp_diqi_trunc,
cmp_diqi_trunc_set, lshrdi3_v8plus+1, lshrdi3_v8plus+2,
lshrdi3_v8plus+3, lshrdi3_v8plus+4): Use proper
SUBREG_BYTE offset for non-paradoxical subregs in patterns.
* config/v850/v850.c (print_operand, output_move_double): Use
subreg_regno function.
Co-Authored-By: Andrew MacLeod <amacleod@redhat.com>
Co-Authored-By: David S. Miller <davem@pierdol.cobaltmicro.com>
From-SVN: r41058
2001-04-03 17:06:12 +02:00
|
|
|
|
i += subreg_regno_offset (REGNO (SUBREG_REG (x)),
|
|
|
|
|
GET_MODE (SUBREG_REG (x)),
|
|
|
|
|
SUBREG_BYTE (x),
|
|
|
|
|
GET_MODE (x));
|
1992-02-28 11:23:25 +01:00
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
i = REGNO (x);
|
|
|
|
|
|
|
|
|
|
if (GET_CODE (y) == SUBREG)
|
|
|
|
|
{
|
|
|
|
|
j = REGNO (SUBREG_REG (y));
|
|
|
|
|
if (j >= FIRST_PSEUDO_REGISTER)
|
|
|
|
|
goto slow;
|
Use byte offsets in SUBREGs instead of words.
2001-04-03 Jakub Jelinek <jakub@redhat.com>
David S. Miller <davem@pierdol.cobaltmicro.com>
Andrew MacLeod <amacleod@redhat.com>
Use byte offsets in SUBREGs instead of words.
* alias.c (nonlocal_mentioned_p): Use subreg_regno function.
* caller-save.c (mark_set_regs): Change callers of subreg_hard_regno
to pass new argument.
(add_stored_regs): Use subreg_regno_offset function.
* calls.c (expand_call): For non-paradoxical SUBREG take endianess
into account.
(precompute_arguments): Use gen_lowpart_SUBREG.
* combine.c (try_combine): Replace explicit XEXP with SUBREG_REG.
(combine_simplify_rtx): Rework to use SUBREG_BYTE.
(simplify_set): Rework to use SUBREG_BYTE.
(expand_field_assignment): Use SUBREG_BYTE.
(make_extraction): Use SUBREG_BYTE.
(if_then_else_cond): Use SUBREG_BYTE.
(apply_distributive_law): Use SUBREG_BYTE and fixup subreg comments.
(gen_lowpart_for_combine): Compute full byte offset.
* cse.c (mention_regs): Use SUBREG_BYTE.
(remove_invalid_subreg_refs): Rework to use SUBREG_BYTE.
(canon_hash): Use SUBREG_BYTE.
(fold_rtx): Pass SUBREG_BYTE div UNITS_PER_WORD to operand_subword.
(gen_lowpart_if_possible): Formatting.
* dbxout.c (dbxout_symbol_location): Compute SUBREG hard regnos
correctly.
* dwarf2out.c (is_pseudo_reg): Fixup explicit XEXP into SUBREG_REG
(mem_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
(loc_descriptor): Fixup explicit XEXP into SUBREG_REG
* dwarfout.c (is_pseudo_reg): Fixup explicit XEXP into SUBREG_REG
(output_mem_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
(output_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
* emit-rtl.c (gen_rtx_SUBREG): New function, used to verify
certain invariants about SUBREGs the compiler creates.
(gen_lowpart_SUBREG): New function.
(subreg_hard_regno): New function to get the final register number.
(gen_lowpart_common): Use SUBREG_BYTE.
(gen_imagpart): Spacing nits.
(subreg_realpart_p): Use SUBREG_BYTE.
(gen_highpart): Use SUBREG_BYTE.
(subreg_lowpart_p): Always compute endian corrected goal offset,
even at the byte level, then compare against that.
(constant_subword): New function, pulled out all constant cases
from operand_subword and changed second argument name to offset.
(operand_subword): Detect non REG/SUBREG/CONCAT/MEM cases early
and call constant_subword to do the work. Return const0_rtx if
looking for a word outside of OP.
(operand_subword_force): Change second arg name to offset.
* expmed.c (store_bit_field): Use SUBREG_BYTE.
(store_split_bit_field): Use SUBREG_BYTE.
(extract_bit_field): Use SUBREG_BYTE.
(extract_split_bit_field): Use SUBREG_BYTE.
(expand_shift): Use SUBREG_BYTE.
* expr.c (store_expr, expand_expr): Use gen_lowpart_SUBREG.
* final.c (alter_subreg) Use subreg_hard_regno and SUBREG_BYTE.
* flow.c (set_noop_p): Use SUBREG_BYTE.
(mark_set_1): Remove ALTER_HARD_SUBREG. Use subreg_regno_offset instead.
* function.c (fixup_var_refs_1): Fixup explicit XEXP into a SUBREG_REG.
(fixup_memory_subreg): Use SUBREG_BYTE and remove byte endian
correction code.
(optimize_bit_field): Use SUBREG_BYTE.
(purge_addressof_1): Use SUBREG_BYTE.
(purge_single_hard_subreg_set): Use subreg_regno_offset function.
(assign_params): Mark arguments SUBREG_PROMOTED_VAR_P if they are
actually promoted by the caller and PROMOTE_FOR_CALLS_ONLY is true.
* gengenrtl.c (special_rtx): Add SUBREG.
* global.c (mark_reg_store): Use SUBREG_BYTE.
(set_preference): Rework to use subreg_regno_offset and SUBREG_BYTE.
* ifcvt (noce_emit_move_insn): Use SUBREG_BYTE.
* integrate.c (copy_rtx_and_substitute): Use SUBREG_BYTE and make sure
final byte offset is congruent to subreg's mode size.
(subst_constants): Use SUBREG_BYTE.
(mark_stores): Use subreg_regno_offset function.
* jump.c (rtx_renumbered_equal_p, true_regnum): Use subreg_regno_offset
function and SUBREG_BYTE.
* local-alloc.c (combine_regs): Use subreg_regno_offset function.
(reg_is_born): Use subreg_hard_regno.
* recog.c (valid_replace_rtx_1): Use SUBREG_BYTE and remove byte
endian correction code. Don't combine subregs unless resulting
offset aligns with type. Fix subreg constant extraction for DImode.
Simplify SUBREG of VOIDmode CONST_DOUBLE.
(general_operand): Remove dead mode_altering_drug code.
(indirect_operand): Use SUBREG_BYTE.
(constrain_operands): Use subreg_regno_offset function.
* reg-stack.c (get_true_reg): Use subreg_regno_offset function.
* regmove.c (regmove_optimize): Use SUBREG_BYTE.
(optimize_reg_copy_3): Use gen_lowpart_SUBREG.
* regs.h (REG_SIZE): Allow target to override.
(REGMODE_NATURAL_SIZE): New macro which target can override.
* reload.c (reload_inner_reg_of_subreg): subreg_regno should be used
on the entire subreg rtx.
(push_reload): Use SUBREG_BYTE in comments and code.
(find_dummy_reload): Use subreg_regno_offset. Only adjust offsets
for hard registers inside subregs.
(operands_match_p): Use subreg_regno_offset.
(find_reloads): Use SUBREG_BYTE and only advance offset for subregs
containing hard regs.
(find_reload_toplev): Use SUBREG_BYTE. Remove byte endian
corrections when fixing up MEM subregs.
(find_reloads_address_1): Use SUBREG_BYTE, subreg_regno, and
subreg_regno_offset where appropriate.
(find_reloads_subreg_address): Use SUBREG_BYTE. Remove
byte endian corrections when fixing up MEM subregs.
(subst_reloads): When combining two subregs, make sure final
offset is congruent to subreg's mode size.
(find_replacement): Use SUBREG_BYTE and subreg_regno_offset.
(refers_to_regno_for_reload_p): Use subreg_regno.
(reg_overlap_mentioned_for_reload_p): Use subreg_regno_offset.
* reload1.c (eliminate_regs) Use SUBREG_BYTE. Remove byte endian
correction code for memory subreg fixups.
(forget_old_reload_1): Use subreg_regno_offset.
(choose_reload_regs): Use subreg_regno.
(emit_input_reload_insns): Use SUBREG_BYTE.
(reload_combine_note_store): Use subreg_regno_offset.
(move2add_note_store): Use subreg_regno_offset.
* resource.c (update_live_status, mark_referenced_resources): Use
subreg_regno function.
(mark_set_resources): Use subreg_regno function.
* rtl.h (SUBREG_WORD): Rename to SUBREG_BYTE.
(subreg_regno_offset, subreg_regno): Define prototypes.
(subreg_hard_regno, constant_subword, gen_rtx_SUBREG): Newi functions.
(gen_lowpart_SUBREG): Add prototype.
* rtl.texi (subreg): Update to reflect new byte offset representation.
Add mentioning of the effect that BYTES_BIG_ENDIAN has on subregs now.
* rtlanal.c (refers_to_regno_p): Use subreg_regno.
(reg_overlap_mentioned_p): Use subreg_regno.
(replace_regs); Make sure final offset of combined subreg is
congruent to size of subreg's mode.
(subreg_regno_offset): New function.
(subreg_regno): New function.
* sched-vis.c (print_value): Change SUBREG_WORD to SUBREG_BYTE.
* sdbout.c (sdbout_symbol): Compute offset using alter_subreg.
* stmt.c (expand_anon_union_decl): Use gen_lowpart_SUBREG.
* tm.texi (ALTER_HARD_SUBREG): Remove, it is now dead.
(SUBREG_REGNO_OFFSET): Describe SUBREG_REGNO_OFFSET overrides.
* config/a29k/a29k.c (gpc_reg_operand): Use subreg_regno.
(a29k_get_reloaded_address): Use SUBREG_BYTE.
(print_operand): Use SUBREG_BYTE.
* config/alpha/alpha.c (print_operand_address): Use SUBREG_BYTE.
* config/arm/arm.c (arm_reload_in_hi): Use SUBREG_BYTE.
(arm_reload_out_hi): Use SUBREG_BYTE.
* config/d30v/d30v.c (d30v_split_double): Use subreg_regno_offset
instead of SUBREG_WORD.
(d30v_print_operand_memory_reference): Use subreg_regno_offset.
* config/dsp16xx/dsp16xx.md (extendqihi2, zero_extendqihi2): Fix
SUBREG creation to use byte offset.
* config/h8300/h8300.md (Unnamed HImode zero extraction and 16bit
inverted load insns): Fix explicit rtl subregs to use byte
offsets.
* config/i370/i370.md (cmpstrsi, movstrsi, mulsi3, divsi3,
udivsi3, umodsi3): Generate SUBREGs with byte offsets.
* config/i860/i860.c (single_insn_src_p): Use SUBREG_BYTE.
* config/i860/i860.md (mulsi3_big): Fixup explicit SUBREGs in rtl
to use byte offsets.
(unnamed fmlow.dd insn): Fixup SUBREGS to use byte offsets.
* config/i960/i960.md (extendhisi2): Generate SUBREGs with byte
offsets, also make sure it is congruent to SUBREG's mode size.
(extendqisi2, extendqihi2, zero_extendhisi2, zero_extendqisi2,
unnamed ldob insn): Generate SUBREGs with byte offset.
(zero_extendqihi2): SUBREG's are byte offsets.
* config/m68hc11/m68hc11.c (m68hc11_gen_lowpart): Use SUBREG_BYTE.
(m68hc11_gen_highpart): Use SUBREG_BYTE.
* config/m68k/m68k.md (zero_extendhisi2, zero_extendqihi2,
zero-extendqisi2): Generate SUBREGs with byte offset.
(umulsidi3, mulsidi3, subreghi1ashrdi_const32,
subregsi1ashrdi_const32, subreg1lshrdi_const32): Fixup explicit
subregs in rtl to use byte offsets.
* config/m88k/m88k.md (extendsidi2): fixup subregs to use byte offset.
* config/mips/mips.c (mips_move_1word): Use subreg_regno_offset.
(mips_move_2words): Use subreg_regno_offset.
(mips_secondary_reload_class): Use subreg_regno_offset.
* config/mips/mips.md (DImode plus, minus, move, and logical op
splits): Fixup explicit subregs in rtl to use byte offsets.
* config/mn10200/mn10200.c (print_operand): Use subreg_regno function.
* config/mn10300/mn10300.c (print_operand): Use subreg_regno function.
* config/ns32k/ns32k.md (udivmoddisi4): Fix explicit subregs in
rtl to use byte offsets.
* config/pa/pa.c (emit_move_sequence): Use SUBREG_BYTE.
* config/pa/pa.md (floatunssisf2, floatunssidf2, mulsi3): fix explicit
subregs to use byte offsets.
* config/pdp11/pdp11.md (zero_extendhisi2, modhi3, modhi3+1):
Fixup explicit subregs in rtl to use byte offsets.
* config/romp/romp.c (memory_offset_in_range_p): Use SUBREG_BYTE
and remove byte endian correction code.
* config/sh/sh.c (output_movedouble): Use subreg_regno.
(gen_ashift_hi): Use SUBREG_BYTE.
(regs_used): Use subreg_regno_offset.
(machine_dependent_reorg): Use subreg_regno_offset.
* config/sh/sh.h (INDEX_REGISTER_RTX_P): Use SUBREG_BYTE.
* config/sh/sh.md (DImode and DFmode move splits): Use subreg_regno.
(movdf_i4): Subregs are byte offsets now.
* config/sparc/sparc.c (ultra_find_type): Use SUBREG_BYTE.
* config/sparc/sparc.h (ALTER_HARD_SUBREG): Removed.
(REGMODE_NATURAL_SIZE): Override.
(REG_SIZE): For SUBREG check float mode on SUBREG_REG's mode.
* config/sparc/sparc.md (TFmode move splits): Generate SUBREGs
with byte offsets.
(zero_extendhisi2, zero_extendqidi2_insn, extendhisi2,
extendqihi2, sign_extendqihi2_insn, sign_extendqisi2_insn,
extendqidi2): Generate SUBREGs with byte offsets, also make sure
it is congruent to SUBREG's mode size.
(smulsi3_highpart_v8plus): Fix explicit subregs in rtl to use byte
offsets.
(cmp_siqi_trunc, cmp_siqi_trunc_set, cmp_diqi_trunc,
cmp_diqi_trunc_set, lshrdi3_v8plus+1, lshrdi3_v8plus+2,
lshrdi3_v8plus+3, lshrdi3_v8plus+4): Use proper
SUBREG_BYTE offset for non-paradoxical subregs in patterns.
* config/v850/v850.c (print_operand, output_move_double): Use
subreg_regno function.
Co-Authored-By: Andrew MacLeod <amacleod@redhat.com>
Co-Authored-By: David S. Miller <davem@pierdol.cobaltmicro.com>
From-SVN: r41058
2001-04-03 17:06:12 +02:00
|
|
|
|
j += subreg_regno_offset (REGNO (SUBREG_REG (y)),
|
|
|
|
|
GET_MODE (SUBREG_REG (y)),
|
|
|
|
|
SUBREG_BYTE (y),
|
|
|
|
|
GET_MODE (y));
|
1992-02-28 11:23:25 +01:00
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
j = REGNO (y);
|
|
|
|
|
|
1992-12-31 23:31:24 +01:00
|
|
|
|
/* On a WORDS_BIG_ENDIAN machine, point to the last register of a
|
|
|
|
|
multiple hard register group, so that for example (reg:DI 0) and
|
|
|
|
|
(reg:SI 1) will be considered the same register. */
|
|
|
|
|
if (WORDS_BIG_ENDIAN && GET_MODE_SIZE (GET_MODE (x)) > UNITS_PER_WORD
|
|
|
|
|
&& i < FIRST_PSEUDO_REGISTER)
|
|
|
|
|
i += (GET_MODE_SIZE (GET_MODE (x)) / UNITS_PER_WORD) - 1;
|
|
|
|
|
if (WORDS_BIG_ENDIAN && GET_MODE_SIZE (GET_MODE (y)) > UNITS_PER_WORD
|
|
|
|
|
&& j < FIRST_PSEUDO_REGISTER)
|
|
|
|
|
j += (GET_MODE_SIZE (GET_MODE (y)) / UNITS_PER_WORD) - 1;
|
|
|
|
|
|
1992-02-28 11:23:25 +01:00
|
|
|
|
return i == j;
|
|
|
|
|
}
|
|
|
|
|
/* If two operands must match, because they are really a single
|
|
|
|
|
operand of an assembler insn, then two postincrements are invalid
|
|
|
|
|
because the assembler insn would increment only once.
|
|
|
|
|
On the other hand, an postincrement matches ordinary indexing
|
|
|
|
|
if the postincrement is the output operand. */
|
2000-07-28 19:46:18 +02:00
|
|
|
|
if (code == POST_DEC || code == POST_INC || code == POST_MODIFY)
|
1992-02-28 11:23:25 +01:00
|
|
|
|
return operands_match_p (XEXP (x, 0), y);
|
|
|
|
|
/* Two preincrements are invalid
|
|
|
|
|
because the assembler insn would increment only once.
|
|
|
|
|
On the other hand, an preincrement matches ordinary indexing
|
|
|
|
|
if the preincrement is the input operand.
|
|
|
|
|
In this case, return 2, since some callers need to do special
|
|
|
|
|
things when this happens. */
|
2000-07-28 19:46:18 +02:00
|
|
|
|
if (GET_CODE (y) == PRE_DEC || GET_CODE (y) == PRE_INC
|
|
|
|
|
|| GET_CODE (y) == PRE_MODIFY)
|
1992-02-28 11:23:25 +01:00
|
|
|
|
return operands_match_p (x, XEXP (y, 0)) ? 2 : 0;
|
|
|
|
|
|
|
|
|
|
slow:
|
|
|
|
|
|
1999-09-01 16:30:35 +02:00
|
|
|
|
/* Now we have disposed of all the cases
|
1992-02-28 11:23:25 +01:00
|
|
|
|
in which different rtx codes can match. */
|
|
|
|
|
if (code != GET_CODE (y))
|
|
|
|
|
return 0;
|
|
|
|
|
if (code == LABEL_REF)
|
|
|
|
|
return XEXP (x, 0) == XEXP (y, 0);
|
|
|
|
|
if (code == SYMBOL_REF)
|
|
|
|
|
return XSTR (x, 0) == XSTR (y, 0);
|
|
|
|
|
|
|
|
|
|
/* (MULT:SI x y) and (MULT:HI x y) are NOT equivalent. */
|
|
|
|
|
|
|
|
|
|
if (GET_MODE (x) != GET_MODE (y))
|
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
|
|
/* Compare the elements. If any pair of corresponding elements
|
|
|
|
|
fail to match, return 0 for the whole things. */
|
|
|
|
|
|
|
|
|
|
success_2 = 0;
|
|
|
|
|
fmt = GET_RTX_FORMAT (code);
|
|
|
|
|
for (i = GET_RTX_LENGTH (code) - 1; i >= 0; i--)
|
|
|
|
|
{
|
1998-08-25 14:23:51 +02:00
|
|
|
|
int val, j;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
switch (fmt[i])
|
|
|
|
|
{
|
1992-07-06 22:11:22 +02:00
|
|
|
|
case 'w':
|
|
|
|
|
if (XWINT (x, i) != XWINT (y, i))
|
|
|
|
|
return 0;
|
|
|
|
|
break;
|
|
|
|
|
|
1992-02-28 11:23:25 +01:00
|
|
|
|
case 'i':
|
|
|
|
|
if (XINT (x, i) != XINT (y, i))
|
|
|
|
|
return 0;
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case 'e':
|
|
|
|
|
val = operands_match_p (XEXP (x, i), XEXP (y, i));
|
|
|
|
|
if (val == 0)
|
|
|
|
|
return 0;
|
|
|
|
|
/* If any subexpression returns 2,
|
|
|
|
|
we should return 2 if we are successful. */
|
|
|
|
|
if (val == 2)
|
|
|
|
|
success_2 = 1;
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case '0':
|
|
|
|
|
break;
|
|
|
|
|
|
1998-08-25 14:23:51 +02:00
|
|
|
|
case 'E':
|
|
|
|
|
if (XVECLEN (x, i) != XVECLEN (y, i))
|
|
|
|
|
return 0;
|
|
|
|
|
for (j = XVECLEN (x, i) - 1; j >= 0; --j)
|
|
|
|
|
{
|
|
|
|
|
val = operands_match_p (XVECEXP (x, i, j), XVECEXP (y, i, j));
|
|
|
|
|
if (val == 0)
|
|
|
|
|
return 0;
|
|
|
|
|
if (val == 2)
|
|
|
|
|
success_2 = 1;
|
|
|
|
|
}
|
|
|
|
|
break;
|
|
|
|
|
|
1992-02-28 11:23:25 +01:00
|
|
|
|
/* It is believed that rtx's at this level will never
|
|
|
|
|
contain anything but integers and other rtx's,
|
|
|
|
|
except for within LABEL_REFs and SYMBOL_REFs. */
|
|
|
|
|
default:
|
|
|
|
|
abort ();
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
return 1 + success_2;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Describe the range of registers or memory referenced by X.
|
1999-09-01 16:30:35 +02:00
|
|
|
|
If X is a register, set REG_FLAG and put the first register
|
1992-02-28 11:23:25 +01:00
|
|
|
|
number into START and the last plus one into END.
|
1999-09-01 16:30:35 +02:00
|
|
|
|
If X is a memory reference, put a base address into BASE
|
1992-02-28 11:23:25 +01:00
|
|
|
|
and a range of integer offsets into START and END.
|
1999-09-01 16:30:35 +02:00
|
|
|
|
If X is pushing on the stack, we can assume it causes no trouble,
|
1992-02-28 11:23:25 +01:00
|
|
|
|
so we set the SAFE field. */
|
|
|
|
|
|
|
|
|
|
static struct decomposition
|
|
|
|
|
decompose (x)
|
|
|
|
|
rtx x;
|
|
|
|
|
{
|
|
|
|
|
struct decomposition val;
|
|
|
|
|
int all_const = 0;
|
|
|
|
|
|
|
|
|
|
val.reg_flag = 0;
|
|
|
|
|
val.safe = 0;
|
1997-10-07 18:50:13 +02:00
|
|
|
|
val.base = 0;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
if (GET_CODE (x) == MEM)
|
|
|
|
|
{
|
1999-08-25 15:37:46 +02:00
|
|
|
|
rtx base = NULL_RTX, offset = 0;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
rtx addr = XEXP (x, 0);
|
|
|
|
|
|
|
|
|
|
if (GET_CODE (addr) == PRE_DEC || GET_CODE (addr) == PRE_INC
|
|
|
|
|
|| GET_CODE (addr) == POST_DEC || GET_CODE (addr) == POST_INC)
|
|
|
|
|
{
|
|
|
|
|
val.base = XEXP (addr, 0);
|
2000-08-29 23:14:57 +02:00
|
|
|
|
val.start = -GET_MODE_SIZE (GET_MODE (x));
|
1992-02-28 11:23:25 +01:00
|
|
|
|
val.end = GET_MODE_SIZE (GET_MODE (x));
|
|
|
|
|
val.safe = REGNO (val.base) == STACK_POINTER_REGNUM;
|
|
|
|
|
return val;
|
|
|
|
|
}
|
|
|
|
|
|
2000-07-28 19:46:18 +02:00
|
|
|
|
if (GET_CODE (addr) == PRE_MODIFY || GET_CODE (addr) == POST_MODIFY)
|
2000-08-29 23:14:57 +02:00
|
|
|
|
{
|
|
|
|
|
if (GET_CODE (XEXP (addr, 1)) == PLUS
|
2000-07-28 19:46:18 +02:00
|
|
|
|
&& XEXP (addr, 0) == XEXP (XEXP (addr, 1), 0)
|
|
|
|
|
&& CONSTANT_P (XEXP (XEXP (addr, 1), 1)))
|
2000-08-29 23:14:57 +02:00
|
|
|
|
{
|
|
|
|
|
val.base = XEXP (addr, 0);
|
|
|
|
|
val.start = -INTVAL (XEXP (XEXP (addr, 1), 1));
|
|
|
|
|
val.end = INTVAL (XEXP (XEXP (addr, 1), 1));
|
|
|
|
|
val.safe = REGNO (val.base) == STACK_POINTER_REGNUM;
|
|
|
|
|
return val;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
1992-02-28 11:23:25 +01:00
|
|
|
|
if (GET_CODE (addr) == CONST)
|
|
|
|
|
{
|
|
|
|
|
addr = XEXP (addr, 0);
|
|
|
|
|
all_const = 1;
|
|
|
|
|
}
|
|
|
|
|
if (GET_CODE (addr) == PLUS)
|
|
|
|
|
{
|
|
|
|
|
if (CONSTANT_P (XEXP (addr, 0)))
|
|
|
|
|
{
|
|
|
|
|
base = XEXP (addr, 1);
|
|
|
|
|
offset = XEXP (addr, 0);
|
|
|
|
|
}
|
|
|
|
|
else if (CONSTANT_P (XEXP (addr, 1)))
|
|
|
|
|
{
|
|
|
|
|
base = XEXP (addr, 0);
|
|
|
|
|
offset = XEXP (addr, 1);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (offset == 0)
|
|
|
|
|
{
|
|
|
|
|
base = addr;
|
|
|
|
|
offset = const0_rtx;
|
1999-09-01 16:30:35 +02:00
|
|
|
|
}
|
1992-02-28 11:23:25 +01:00
|
|
|
|
if (GET_CODE (offset) == CONST)
|
|
|
|
|
offset = XEXP (offset, 0);
|
|
|
|
|
if (GET_CODE (offset) == PLUS)
|
|
|
|
|
{
|
|
|
|
|
if (GET_CODE (XEXP (offset, 0)) == CONST_INT)
|
|
|
|
|
{
|
alias.c: Change all uses of gen_rtx(FOO...) to gen_rtx_FOO...
* alias.c: Change all uses of gen_rtx(FOO...) to gen_rtx_FOO;
change gen_rtx(expr...) to gen_rtx_fmt_foo(expr...).
* caller-save.c, calls.c, combine.c, cse.c: Likewise.
* dwarf2out.c, except.c, explow.c, expmed.c, expr.c: Likewise.
* final.c, flow.c, function.c, genpeep.c, haifa-sched.c: Likewise.
* halfpic.c, integrate.c, jump.c, local-alloc.c, loop.c: Likewise.
* profile.c, recog.c, reg-stack.c, regclass.c, regmove.c: Likewise.
* reload.c, reload1.c, reorg.c, sched.c, stmt.c, stupid.c: Likewise.
* unroll.c, varasm.c: Likewise.
* config/alpha/alpha.c, config/alpha/alpha.md: Likewise.
From-SVN: r17357
1998-01-15 00:10:50 +01:00
|
|
|
|
base = gen_rtx_PLUS (GET_MODE (base), base, XEXP (offset, 1));
|
1992-02-28 11:23:25 +01:00
|
|
|
|
offset = XEXP (offset, 0);
|
|
|
|
|
}
|
|
|
|
|
else if (GET_CODE (XEXP (offset, 1)) == CONST_INT)
|
|
|
|
|
{
|
alias.c: Change all uses of gen_rtx(FOO...) to gen_rtx_FOO...
* alias.c: Change all uses of gen_rtx(FOO...) to gen_rtx_FOO;
change gen_rtx(expr...) to gen_rtx_fmt_foo(expr...).
* caller-save.c, calls.c, combine.c, cse.c: Likewise.
* dwarf2out.c, except.c, explow.c, expmed.c, expr.c: Likewise.
* final.c, flow.c, function.c, genpeep.c, haifa-sched.c: Likewise.
* halfpic.c, integrate.c, jump.c, local-alloc.c, loop.c: Likewise.
* profile.c, recog.c, reg-stack.c, regclass.c, regmove.c: Likewise.
* reload.c, reload1.c, reorg.c, sched.c, stmt.c, stupid.c: Likewise.
* unroll.c, varasm.c: Likewise.
* config/alpha/alpha.c, config/alpha/alpha.md: Likewise.
From-SVN: r17357
1998-01-15 00:10:50 +01:00
|
|
|
|
base = gen_rtx_PLUS (GET_MODE (base), base, XEXP (offset, 0));
|
1992-02-28 11:23:25 +01:00
|
|
|
|
offset = XEXP (offset, 1);
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
alias.c: Change all uses of gen_rtx(FOO...) to gen_rtx_FOO...
* alias.c: Change all uses of gen_rtx(FOO...) to gen_rtx_FOO;
change gen_rtx(expr...) to gen_rtx_fmt_foo(expr...).
* caller-save.c, calls.c, combine.c, cse.c: Likewise.
* dwarf2out.c, except.c, explow.c, expmed.c, expr.c: Likewise.
* final.c, flow.c, function.c, genpeep.c, haifa-sched.c: Likewise.
* halfpic.c, integrate.c, jump.c, local-alloc.c, loop.c: Likewise.
* profile.c, recog.c, reg-stack.c, regclass.c, regmove.c: Likewise.
* reload.c, reload1.c, reorg.c, sched.c, stmt.c, stupid.c: Likewise.
* unroll.c, varasm.c: Likewise.
* config/alpha/alpha.c, config/alpha/alpha.md: Likewise.
From-SVN: r17357
1998-01-15 00:10:50 +01:00
|
|
|
|
base = gen_rtx_PLUS (GET_MODE (base), base, offset);
|
1992-02-28 11:23:25 +01:00
|
|
|
|
offset = const0_rtx;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
else if (GET_CODE (offset) != CONST_INT)
|
|
|
|
|
{
|
alias.c: Change all uses of gen_rtx(FOO...) to gen_rtx_FOO...
* alias.c: Change all uses of gen_rtx(FOO...) to gen_rtx_FOO;
change gen_rtx(expr...) to gen_rtx_fmt_foo(expr...).
* caller-save.c, calls.c, combine.c, cse.c: Likewise.
* dwarf2out.c, except.c, explow.c, expmed.c, expr.c: Likewise.
* final.c, flow.c, function.c, genpeep.c, haifa-sched.c: Likewise.
* halfpic.c, integrate.c, jump.c, local-alloc.c, loop.c: Likewise.
* profile.c, recog.c, reg-stack.c, regclass.c, regmove.c: Likewise.
* reload.c, reload1.c, reorg.c, sched.c, stmt.c, stupid.c: Likewise.
* unroll.c, varasm.c: Likewise.
* config/alpha/alpha.c, config/alpha/alpha.md: Likewise.
From-SVN: r17357
1998-01-15 00:10:50 +01:00
|
|
|
|
base = gen_rtx_PLUS (GET_MODE (base), base, offset);
|
1992-02-28 11:23:25 +01:00
|
|
|
|
offset = const0_rtx;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (all_const && GET_CODE (base) == PLUS)
|
alias.c: Change all uses of gen_rtx(FOO...) to gen_rtx_FOO...
* alias.c: Change all uses of gen_rtx(FOO...) to gen_rtx_FOO;
change gen_rtx(expr...) to gen_rtx_fmt_foo(expr...).
* caller-save.c, calls.c, combine.c, cse.c: Likewise.
* dwarf2out.c, except.c, explow.c, expmed.c, expr.c: Likewise.
* final.c, flow.c, function.c, genpeep.c, haifa-sched.c: Likewise.
* halfpic.c, integrate.c, jump.c, local-alloc.c, loop.c: Likewise.
* profile.c, recog.c, reg-stack.c, regclass.c, regmove.c: Likewise.
* reload.c, reload1.c, reorg.c, sched.c, stmt.c, stupid.c: Likewise.
* unroll.c, varasm.c: Likewise.
* config/alpha/alpha.c, config/alpha/alpha.md: Likewise.
From-SVN: r17357
1998-01-15 00:10:50 +01:00
|
|
|
|
base = gen_rtx_CONST (GET_MODE (base), base);
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
|
|
|
|
if (GET_CODE (offset) != CONST_INT)
|
|
|
|
|
abort ();
|
|
|
|
|
|
|
|
|
|
val.start = INTVAL (offset);
|
|
|
|
|
val.end = val.start + GET_MODE_SIZE (GET_MODE (x));
|
|
|
|
|
val.base = base;
|
|
|
|
|
return val;
|
|
|
|
|
}
|
|
|
|
|
else if (GET_CODE (x) == REG)
|
|
|
|
|
{
|
|
|
|
|
val.reg_flag = 1;
|
1999-09-01 16:30:35 +02:00
|
|
|
|
val.start = true_regnum (x);
|
1992-02-28 11:23:25 +01:00
|
|
|
|
if (val.start < 0)
|
|
|
|
|
{
|
|
|
|
|
/* A pseudo with no hard reg. */
|
|
|
|
|
val.start = REGNO (x);
|
|
|
|
|
val.end = val.start + 1;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
/* A hard reg. */
|
|
|
|
|
val.end = val.start + HARD_REGNO_NREGS (val.start, GET_MODE (x));
|
|
|
|
|
}
|
|
|
|
|
else if (GET_CODE (x) == SUBREG)
|
|
|
|
|
{
|
|
|
|
|
if (GET_CODE (SUBREG_REG (x)) != REG)
|
|
|
|
|
/* This could be more precise, but it's good enough. */
|
|
|
|
|
return decompose (SUBREG_REG (x));
|
|
|
|
|
val.reg_flag = 1;
|
1999-09-01 16:30:35 +02:00
|
|
|
|
val.start = true_regnum (x);
|
1992-02-28 11:23:25 +01:00
|
|
|
|
if (val.start < 0)
|
|
|
|
|
return decompose (SUBREG_REG (x));
|
|
|
|
|
else
|
|
|
|
|
/* A hard reg. */
|
|
|
|
|
val.end = val.start + HARD_REGNO_NREGS (val.start, GET_MODE (x));
|
|
|
|
|
}
|
|
|
|
|
else if (CONSTANT_P (x)
|
|
|
|
|
/* This hasn't been assigned yet, so it can't conflict yet. */
|
|
|
|
|
|| GET_CODE (x) == SCRATCH)
|
|
|
|
|
val.safe = 1;
|
|
|
|
|
else
|
|
|
|
|
abort ();
|
|
|
|
|
return val;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Return 1 if altering Y will not modify the value of X.
|
|
|
|
|
Y is also described by YDATA, which should be decompose (Y). */
|
|
|
|
|
|
|
|
|
|
static int
|
|
|
|
|
immune_p (x, y, ydata)
|
|
|
|
|
rtx x, y;
|
|
|
|
|
struct decomposition ydata;
|
|
|
|
|
{
|
|
|
|
|
struct decomposition xdata;
|
|
|
|
|
|
|
|
|
|
if (ydata.reg_flag)
|
2002-01-10 01:56:56 +01:00
|
|
|
|
return !refers_to_regno_for_reload_p (ydata.start, ydata.end, x, (rtx*) 0);
|
1992-02-28 11:23:25 +01:00
|
|
|
|
if (ydata.safe)
|
|
|
|
|
return 1;
|
|
|
|
|
|
|
|
|
|
if (GET_CODE (y) != MEM)
|
|
|
|
|
abort ();
|
|
|
|
|
/* If Y is memory and X is not, Y can't affect X. */
|
|
|
|
|
if (GET_CODE (x) != MEM)
|
|
|
|
|
return 1;
|
|
|
|
|
|
2000-08-29 23:14:57 +02:00
|
|
|
|
xdata = decompose (x);
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
|
|
|
|
if (! rtx_equal_p (xdata.base, ydata.base))
|
|
|
|
|
{
|
|
|
|
|
/* If bases are distinct symbolic constants, there is no overlap. */
|
|
|
|
|
if (CONSTANT_P (xdata.base) && CONSTANT_P (ydata.base))
|
|
|
|
|
return 1;
|
|
|
|
|
/* Constants and stack slots never overlap. */
|
|
|
|
|
if (CONSTANT_P (xdata.base)
|
|
|
|
|
&& (ydata.base == frame_pointer_rtx
|
1993-09-24 21:50:44 +02:00
|
|
|
|
|| ydata.base == hard_frame_pointer_rtx
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|| ydata.base == stack_pointer_rtx))
|
|
|
|
|
return 1;
|
|
|
|
|
if (CONSTANT_P (ydata.base)
|
|
|
|
|
&& (xdata.base == frame_pointer_rtx
|
1993-09-24 21:50:44 +02:00
|
|
|
|
|| xdata.base == hard_frame_pointer_rtx
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|| xdata.base == stack_pointer_rtx))
|
|
|
|
|
return 1;
|
|
|
|
|
/* If either base is variable, we don't know anything. */
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return (xdata.start >= ydata.end || ydata.start >= xdata.end);
|
|
|
|
|
}
|
1992-04-18 03:10:54 +02:00
|
|
|
|
|
1992-06-24 05:59:40 +02:00
|
|
|
|
/* Similar, but calls decompose. */
|
1992-04-18 03:10:54 +02:00
|
|
|
|
|
|
|
|
|
int
|
|
|
|
|
safe_from_earlyclobber (op, clobber)
|
|
|
|
|
rtx op, clobber;
|
|
|
|
|
{
|
|
|
|
|
struct decomposition early_data;
|
|
|
|
|
|
|
|
|
|
early_data = decompose (clobber);
|
|
|
|
|
return immune_p (op, clobber, early_data);
|
|
|
|
|
}
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
|
|
|
|
/* Main entry point of this file: search the body of INSN
|
|
|
|
|
for values that need reloading and record them with push_reload.
|
|
|
|
|
REPLACE nonzero means record also where the values occur
|
|
|
|
|
so that subst_reloads can be used.
|
|
|
|
|
|
|
|
|
|
IND_LEVELS says how many levels of indirection are supported by this
|
|
|
|
|
machine; a value of zero means that a memory reference is not a valid
|
|
|
|
|
memory address.
|
|
|
|
|
|
|
|
|
|
LIVE_KNOWN says we have valid information about which hard
|
|
|
|
|
regs are live at each point in the program; this is true when
|
|
|
|
|
we are called from global_alloc but false when stupid register
|
|
|
|
|
allocation has been done.
|
|
|
|
|
|
|
|
|
|
RELOAD_REG_P if nonzero is a vector indexed by hard reg number
|
|
|
|
|
which is nonnegative if the reg has been commandeered for reloading into.
|
|
|
|
|
It is copied into STATIC_RELOAD_REG_P and referenced from there
|
Fix consistency problems with reg_equiv_{mem,address};
Improve reload inheritance;
* reload.c (reload_out_reg): New variable.
(loc_mentioned_in_p, remove_address_replacements): New functions.
(remove_replacements): Deleted.
(push_reload): Set reload_out_reg[i].
When merging, also set reload_{in,out}_reg[i], and remove
duplicate address reloads.
(combine_reloads): Copy reload_out_reg[i].
(find_reloads): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
Include *recog_operand_loc in commutativity operand changes.
Generate optional output reloads.
Delete reference to n_memlocs. Don't set *recog_operand_loc before
processing operands. Call make_memloc in reg_equiv_address code.
Set *recog_operand_loc only after processing operands, and only
if replace is true. Return a value.
When changing address reload types for operands that didn't get
reloaded, use RELOAD_FOR_OPADDR_ADDRESS for
RELOAD_FOR_INPADDR_ADDRESS / RELOAD_FOR_OUTADDR_ADDRESS reloads.
Don't emit USEs for pseudo SUBREGs when not replacing.
(find_reloads_address): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
(find_reloads_toplev): Likewise.
Call make_memloc in reg_equiv_address code.
(debug_reload_to_stream): Add code to output reload_out_reg.
(make_memloc): Delete local variable i, ifdefed out code, and
references to memlocs and n_memlocs.
(memlocs, n_memlocs): Delete.
(push_secondary_reload): Clear reload_out_reg.
(find_reloads_address_1): Provide memrefloc argument to all calls
to find_reloads_address.
In AUTO_INC code, handle non-directly addressable equivalences properly.
* reload.h (reload_out_reg, num_not_at_initial_offset): Declare.
(find_reloads): Add return type.
(remove_address_replacements, deallocate_reload_reg): Declare.
* reload1.c (num_not_at_initial_offset): No longer static.
(delete_address_reloads, delete_address_reloads_1): Likewise.
(deallocate_reload_reg): New function.
(spill_reg_stored_to): New array.
(eliminate_regs): Don't substitute from reg_equiv_memory_loc.
(eliminate_regs_in_insn): Move assignments of previous_offset and
max_offset fields, and recalculation of num_not_at_initial_offset
into new static function:
(update_eliminable_offsets) .
(reload_as_needed): Call update_eliminable_offsetss after calling
find_reloads.
Call forget_old_reloads_1 with contents of reloaded auto_inc
expressions if the actual addressing can't be changed to match the
auto_inc.
(choose_reload_regs): For inheritance, replace
reload_reg_free_before_p test with reload_reg_ions.
(emit_reload_insns): If reload_in is a MEM, set OLD to
reload_in_reg[j].
Don't reload directly from oldequiv; if it's a pseudo with a
stack slot, use reload_in[j].
Check that reload_in_reg[j] is a MEM before replacing reload_in
from reg_reloaded_contents.
Include non-spill registers in reload inheritance processing.
Also try to use reload_out_reg to set spill_reg_store /
reg_last_reload_reg.
In code to set new_spill_reg_store, use single_set to find out if
there is a single set.
Add code that allows to delete optional output reloads.
Add code to allow deletion of output reloads that use no spill reg.
At the end, set reload_override_in to oldequiv.
Also call delete_output_reload if reload_out_reg is equal to old
in oldequiv code.
Add code to call delete_output_reload for stores with no matching load.
Set / use spill_reg_stored_to.
Handle case where secondary output reload uses a temporary, but
actual store isn't found.
When looking for a store of a value not loaded in order to call
delete_output_reload, count_occurences should return 0 for no
loads; but discount inherited input reloadill_reg_stored_to.
Do checks for extra uses of REG. Changed all
callers.
Use delete_address_reloads.
(reload): Take return value of find_reloads into account.
If a no-op set needs more than one reload, delete it.
(reload_reg_free_before_p): RELOAD_FOR_INPUT
can ignore RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS
for the same operand.
(clear_reload_reg_in_use): Check for other reloads that keep a
register in use.
(reload_reg_free_for_value_p): handle RELOAD_FOR_OPERAND_ADDRESS /
RELOAD_FOR_OPADDR_ADDR.
Take into account when an address address reload is only needed
for the address reload we are considering.
(count_occurrences): Use rtx_equal_p for MEMs.
(inc_for_reload): Return instruction that stores into RELOADREG.
New argument two, IN, and rtx. Changed all callers.
(calculate_needs_all_insns, reload_as_needed):
Don't clear after_call for a CLOBBER.
Keep track of how many hard registers need to be copied from
after_call, and don't clear after_call before we have seen
that much copies, or we see a different instruction.
From-SVN: r23143
1998-10-16 21:54:38 +02:00
|
|
|
|
by various subroutines.
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
Fix consistency problems with reg_equiv_{mem,address};
Improve reload inheritance;
* reload.c (reload_out_reg): New variable.
(loc_mentioned_in_p, remove_address_replacements): New functions.
(remove_replacements): Deleted.
(push_reload): Set reload_out_reg[i].
When merging, also set reload_{in,out}_reg[i], and remove
duplicate address reloads.
(combine_reloads): Copy reload_out_reg[i].
(find_reloads): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
Include *recog_operand_loc in commutativity operand changes.
Generate optional output reloads.
Delete reference to n_memlocs. Don't set *recog_operand_loc before
processing operands. Call make_memloc in reg_equiv_address code.
Set *recog_operand_loc only after processing operands, and only
if replace is true. Return a value.
When changing address reload types for operands that didn't get
reloaded, use RELOAD_FOR_OPADDR_ADDRESS for
RELOAD_FOR_INPADDR_ADDRESS / RELOAD_FOR_OUTADDR_ADDRESS reloads.
Don't emit USEs for pseudo SUBREGs when not replacing.
(find_reloads_address): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
(find_reloads_toplev): Likewise.
Call make_memloc in reg_equiv_address code.
(debug_reload_to_stream): Add code to output reload_out_reg.
(make_memloc): Delete local variable i, ifdefed out code, and
references to memlocs and n_memlocs.
(memlocs, n_memlocs): Delete.
(push_secondary_reload): Clear reload_out_reg.
(find_reloads_address_1): Provide memrefloc argument to all calls
to find_reloads_address.
In AUTO_INC code, handle non-directly addressable equivalences properly.
* reload.h (reload_out_reg, num_not_at_initial_offset): Declare.
(find_reloads): Add return type.
(remove_address_replacements, deallocate_reload_reg): Declare.
* reload1.c (num_not_at_initial_offset): No longer static.
(delete_address_reloads, delete_address_reloads_1): Likewise.
(deallocate_reload_reg): New function.
(spill_reg_stored_to): New array.
(eliminate_regs): Don't substitute from reg_equiv_memory_loc.
(eliminate_regs_in_insn): Move assignments of previous_offset and
max_offset fields, and recalculation of num_not_at_initial_offset
into new static function:
(update_eliminable_offsets) .
(reload_as_needed): Call update_eliminable_offsetss after calling
find_reloads.
Call forget_old_reloads_1 with contents of reloaded auto_inc
expressions if the actual addressing can't be changed to match the
auto_inc.
(choose_reload_regs): For inheritance, replace
reload_reg_free_before_p test with reload_reg_ions.
(emit_reload_insns): If reload_in is a MEM, set OLD to
reload_in_reg[j].
Don't reload directly from oldequiv; if it's a pseudo with a
stack slot, use reload_in[j].
Check that reload_in_reg[j] is a MEM before replacing reload_in
from reg_reloaded_contents.
Include non-spill registers in reload inheritance processing.
Also try to use reload_out_reg to set spill_reg_store /
reg_last_reload_reg.
In code to set new_spill_reg_store, use single_set to find out if
there is a single set.
Add code that allows to delete optional output reloads.
Add code to allow deletion of output reloads that use no spill reg.
At the end, set reload_override_in to oldequiv.
Also call delete_output_reload if reload_out_reg is equal to old
in oldequiv code.
Add code to call delete_output_reload for stores with no matching load.
Set / use spill_reg_stored_to.
Handle case where secondary output reload uses a temporary, but
actual store isn't found.
When looking for a store of a value not loaded in order to call
delete_output_reload, count_occurences should return 0 for no
loads; but discount inherited input reloadill_reg_stored_to.
Do checks for extra uses of REG. Changed all
callers.
Use delete_address_reloads.
(reload): Take return value of find_reloads into account.
If a no-op set needs more than one reload, delete it.
(reload_reg_free_before_p): RELOAD_FOR_INPUT
can ignore RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS
for the same operand.
(clear_reload_reg_in_use): Check for other reloads that keep a
register in use.
(reload_reg_free_for_value_p): handle RELOAD_FOR_OPERAND_ADDRESS /
RELOAD_FOR_OPADDR_ADDR.
Take into account when an address address reload is only needed
for the address reload we are considering.
(count_occurrences): Use rtx_equal_p for MEMs.
(inc_for_reload): Return instruction that stores into RELOADREG.
New argument two, IN, and rtx. Changed all callers.
(calculate_needs_all_insns, reload_as_needed):
Don't clear after_call for a CLOBBER.
Keep track of how many hard registers need to be copied from
after_call, and don't clear after_call before we have seen
that much copies, or we see a different instruction.
From-SVN: r23143
1998-10-16 21:54:38 +02:00
|
|
|
|
Return TRUE if some operands need to be changed, because of swapping
|
|
|
|
|
commutative operands, reg_equiv_address substitution, or whatever. */
|
|
|
|
|
|
|
|
|
|
int
|
1992-02-28 11:23:25 +01:00
|
|
|
|
find_reloads (insn, replace, ind_levels, live_known, reload_reg_p)
|
|
|
|
|
rtx insn;
|
|
|
|
|
int replace, ind_levels;
|
|
|
|
|
int live_known;
|
|
|
|
|
short *reload_reg_p;
|
|
|
|
|
{
|
2001-10-11 05:16:15 +02:00
|
|
|
|
int insn_code_number;
|
|
|
|
|
int i, j;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
int noperands;
|
|
|
|
|
/* These start out as the constraints for the insn
|
|
|
|
|
and they are chewed up as we consider alternatives. */
|
|
|
|
|
char *constraints[MAX_RECOG_OPERANDS];
|
|
|
|
|
/* These are the preferred classes for an operand, or NO_REGS if it isn't
|
|
|
|
|
a register. */
|
|
|
|
|
enum reg_class preferred_class[MAX_RECOG_OPERANDS];
|
|
|
|
|
char pref_or_nothing[MAX_RECOG_OPERANDS];
|
|
|
|
|
/* Nonzero for a MEM operand whose entire address needs a reload. */
|
|
|
|
|
int address_reloaded[MAX_RECOG_OPERANDS];
|
1993-03-29 13:27:52 +02:00
|
|
|
|
/* Value of enum reload_type to use for operand. */
|
|
|
|
|
enum reload_type operand_type[MAX_RECOG_OPERANDS];
|
|
|
|
|
/* Value of enum reload_type to use within address of operand. */
|
|
|
|
|
enum reload_type address_type[MAX_RECOG_OPERANDS];
|
|
|
|
|
/* Save the usage of each operand. */
|
|
|
|
|
enum reload_usage { RELOAD_READ, RELOAD_READ_WRITE, RELOAD_WRITE } modified[MAX_RECOG_OPERANDS];
|
1992-02-28 11:23:25 +01:00
|
|
|
|
int no_input_reloads = 0, no_output_reloads = 0;
|
|
|
|
|
int n_alternatives;
|
|
|
|
|
int this_alternative[MAX_RECOG_OPERANDS];
|
2000-10-28 21:33:09 +02:00
|
|
|
|
char this_alternative_match_win[MAX_RECOG_OPERANDS];
|
1992-02-28 11:23:25 +01:00
|
|
|
|
char this_alternative_win[MAX_RECOG_OPERANDS];
|
|
|
|
|
char this_alternative_offmemok[MAX_RECOG_OPERANDS];
|
|
|
|
|
char this_alternative_earlyclobber[MAX_RECOG_OPERANDS];
|
|
|
|
|
int this_alternative_matches[MAX_RECOG_OPERANDS];
|
|
|
|
|
int swapped;
|
|
|
|
|
int goal_alternative[MAX_RECOG_OPERANDS];
|
|
|
|
|
int this_alternative_number;
|
2000-01-04 17:29:41 +01:00
|
|
|
|
int goal_alternative_number = 0;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
int operand_reloadnum[MAX_RECOG_OPERANDS];
|
|
|
|
|
int goal_alternative_matches[MAX_RECOG_OPERANDS];
|
|
|
|
|
int goal_alternative_matched[MAX_RECOG_OPERANDS];
|
2000-10-28 21:33:09 +02:00
|
|
|
|
char goal_alternative_match_win[MAX_RECOG_OPERANDS];
|
1992-02-28 11:23:25 +01:00
|
|
|
|
char goal_alternative_win[MAX_RECOG_OPERANDS];
|
|
|
|
|
char goal_alternative_offmemok[MAX_RECOG_OPERANDS];
|
|
|
|
|
char goal_alternative_earlyclobber[MAX_RECOG_OPERANDS];
|
|
|
|
|
int goal_alternative_swapped;
|
|
|
|
|
int best;
|
|
|
|
|
int commutative;
|
|
|
|
|
char operands_match[MAX_RECOG_OPERANDS][MAX_RECOG_OPERANDS];
|
|
|
|
|
rtx substed_operand[MAX_RECOG_OPERANDS];
|
|
|
|
|
rtx body = PATTERN (insn);
|
|
|
|
|
rtx set = single_set (insn);
|
2000-01-04 17:29:41 +01:00
|
|
|
|
int goal_earlyclobber = 0, this_earlyclobber;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
enum machine_mode operand_mode[MAX_RECOG_OPERANDS];
|
Fix consistency problems with reg_equiv_{mem,address};
Improve reload inheritance;
* reload.c (reload_out_reg): New variable.
(loc_mentioned_in_p, remove_address_replacements): New functions.
(remove_replacements): Deleted.
(push_reload): Set reload_out_reg[i].
When merging, also set reload_{in,out}_reg[i], and remove
duplicate address reloads.
(combine_reloads): Copy reload_out_reg[i].
(find_reloads): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
Include *recog_operand_loc in commutativity operand changes.
Generate optional output reloads.
Delete reference to n_memlocs. Don't set *recog_operand_loc before
processing operands. Call make_memloc in reg_equiv_address code.
Set *recog_operand_loc only after processing operands, and only
if replace is true. Return a value.
When changing address reload types for operands that didn't get
reloaded, use RELOAD_FOR_OPADDR_ADDRESS for
RELOAD_FOR_INPADDR_ADDRESS / RELOAD_FOR_OUTADDR_ADDRESS reloads.
Don't emit USEs for pseudo SUBREGs when not replacing.
(find_reloads_address): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
(find_reloads_toplev): Likewise.
Call make_memloc in reg_equiv_address code.
(debug_reload_to_stream): Add code to output reload_out_reg.
(make_memloc): Delete local variable i, ifdefed out code, and
references to memlocs and n_memlocs.
(memlocs, n_memlocs): Delete.
(push_secondary_reload): Clear reload_out_reg.
(find_reloads_address_1): Provide memrefloc argument to all calls
to find_reloads_address.
In AUTO_INC code, handle non-directly addressable equivalences properly.
* reload.h (reload_out_reg, num_not_at_initial_offset): Declare.
(find_reloads): Add return type.
(remove_address_replacements, deallocate_reload_reg): Declare.
* reload1.c (num_not_at_initial_offset): No longer static.
(delete_address_reloads, delete_address_reloads_1): Likewise.
(deallocate_reload_reg): New function.
(spill_reg_stored_to): New array.
(eliminate_regs): Don't substitute from reg_equiv_memory_loc.
(eliminate_regs_in_insn): Move assignments of previous_offset and
max_offset fields, and recalculation of num_not_at_initial_offset
into new static function:
(update_eliminable_offsets) .
(reload_as_needed): Call update_eliminable_offsetss after calling
find_reloads.
Call forget_old_reloads_1 with contents of reloaded auto_inc
expressions if the actual addressing can't be changed to match the
auto_inc.
(choose_reload_regs): For inheritance, replace
reload_reg_free_before_p test with reload_reg_ions.
(emit_reload_insns): If reload_in is a MEM, set OLD to
reload_in_reg[j].
Don't reload directly from oldequiv; if it's a pseudo with a
stack slot, use reload_in[j].
Check that reload_in_reg[j] is a MEM before replacing reload_in
from reg_reloaded_contents.
Include non-spill registers in reload inheritance processing.
Also try to use reload_out_reg to set spill_reg_store /
reg_last_reload_reg.
In code to set new_spill_reg_store, use single_set to find out if
there is a single set.
Add code that allows to delete optional output reloads.
Add code to allow deletion of output reloads that use no spill reg.
At the end, set reload_override_in to oldequiv.
Also call delete_output_reload if reload_out_reg is equal to old
in oldequiv code.
Add code to call delete_output_reload for stores with no matching load.
Set / use spill_reg_stored_to.
Handle case where secondary output reload uses a temporary, but
actual store isn't found.
When looking for a store of a value not loaded in order to call
delete_output_reload, count_occurences should return 0 for no
loads; but discount inherited input reloadill_reg_stored_to.
Do checks for extra uses of REG. Changed all
callers.
Use delete_address_reloads.
(reload): Take return value of find_reloads into account.
If a no-op set needs more than one reload, delete it.
(reload_reg_free_before_p): RELOAD_FOR_INPUT
can ignore RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS
for the same operand.
(clear_reload_reg_in_use): Check for other reloads that keep a
register in use.
(reload_reg_free_for_value_p): handle RELOAD_FOR_OPERAND_ADDRESS /
RELOAD_FOR_OPADDR_ADDR.
Take into account when an address address reload is only needed
for the address reload we are considering.
(count_occurrences): Use rtx_equal_p for MEMs.
(inc_for_reload): Return instruction that stores into RELOADREG.
New argument two, IN, and rtx. Changed all callers.
(calculate_needs_all_insns, reload_as_needed):
Don't clear after_call for a CLOBBER.
Keep track of how many hard registers need to be copied from
after_call, and don't clear after_call before we have seen
that much copies, or we see a different instruction.
From-SVN: r23143
1998-10-16 21:54:38 +02:00
|
|
|
|
int retval = 0;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
|
|
|
|
this_insn = insn;
|
|
|
|
|
n_reloads = 0;
|
|
|
|
|
n_replacements = 0;
|
|
|
|
|
n_earlyclobbers = 0;
|
|
|
|
|
replace_reloads = replace;
|
|
|
|
|
hard_regs_live_known = live_known;
|
|
|
|
|
static_reload_reg_p = reload_reg_p;
|
|
|
|
|
|
|
|
|
|
/* JUMP_INSNs and CALL_INSNs are not allowed to have any output reloads;
|
|
|
|
|
neither are insns that SET cc0. Insns that use CC0 are not allowed
|
|
|
|
|
to have any input reloads. */
|
|
|
|
|
if (GET_CODE (insn) == JUMP_INSN || GET_CODE (insn) == CALL_INSN)
|
|
|
|
|
no_output_reloads = 1;
|
|
|
|
|
|
|
|
|
|
#ifdef HAVE_cc0
|
|
|
|
|
if (reg_referenced_p (cc0_rtx, PATTERN (insn)))
|
|
|
|
|
no_input_reloads = 1;
|
|
|
|
|
if (reg_set_p (cc0_rtx, PATTERN (insn)))
|
|
|
|
|
no_output_reloads = 1;
|
|
|
|
|
#endif
|
1999-09-01 16:30:35 +02:00
|
|
|
|
|
1992-07-17 11:57:24 +02:00
|
|
|
|
#ifdef SECONDARY_MEMORY_NEEDED
|
|
|
|
|
/* The eliminated forms of any secondary memory locations are per-insn, so
|
|
|
|
|
clear them out here. */
|
|
|
|
|
|
alias.c [...] (init_alias_analysis, [...]): Use memset () instead of bzero ().
* alias.c (init_alias_analysis), calls.c (expand_call,
emit_library_call_value_1), combine.c (init_reg_last_arrays),
cse.c (new_basic_block), dbxout.c (dbxout_type), diagnostic.c
(init_output_buffer, set_diagnostic_context), dwarf2out.c
(equate_decl_number_to_die, build_abbrev_table), emit-rtl.c
(init_emit_once), fold-const.c (mul_double, div_and_round_double),
function.c (assign_parms), gcse.c (compute_can_copy,
alloc_gcse_mem, alloc_reg_set_mem, record_one_set,
compute_hash_table, compute_set_hash_table,
compute_expr_hash_table), genattrtab.c (optimize_attrs), global.c
(global_alloc, global_conflicts), haifa-sched.c (compute_trg_info,
clear_units, schedule_block), integrate.c (initialize_for_inline,
expand_inline_function), jump.c (thread_jumps), local-alloc.c
(local_alloc), loop.c (combine_movables, count_loop_regs_set,
load_mems_and_recount_loop_regs_set), print-tree.c (debug_tree),
regclass.c (init_reg_sets, init_reg_sets_1, regclass,
record_reg_classes, allocate_reg_info), reload.c
(get_secondary_mem, remove_address_replacements, find_reloads),
reload1.c (reload, set_initial_label_offsets, finish_spills,
reload_as_needed, choose_reload_regs_init,
reload_cse_simplify_operands), reorg.c (dbr_schedule), sbitmap.c
(sbitmap_zero), simplify-rtx.c (simplify_plus_minus), ssa.c
(rename_registers), stmt.c (expand_end_case), unroll.c
(unroll_loop), varray.c (varray_grow), objc/objc-act.c: Use memset
() instead of bzero ().
ch:
* actions.c (check_missing_cases), typeck.c (build_chill_slice,
build_chill_cast): Use memset () instead of bzero ().
cp:
* class.c (duplicate_tag_error, build_vtbl_initializer), decl.c
(push_binding_level), error.c (cp_tree_printer), pt.c
(process_partial_specialization, tsubst_template_arg_vector),
search.c (lookup_member): Use memset () instead of bzero ().
java:
* expr.c (note_instructions), jcf-io.c (find_class), jcf-parse.c
(init_outgoing_cpool), lex.c (java_init_lex): Use memset ()
instead of bzero ().
From-SVN: r37303
2000-11-07 23:50:06 +01:00
|
|
|
|
memset ((char *) secondary_memlocs_elim, 0, sizeof secondary_memlocs_elim);
|
1992-07-17 11:57:24 +02:00
|
|
|
|
#endif
|
|
|
|
|
|
Makefile.in (insn-extract.o): Fix dependencies.
* Makefile.in (insn-extract.o): Fix dependencies.
* genextract.c (main): Generate includes for insn-config.h and
recog.h.
Delete generation of declarations which are now in recog.h.
* genrecog.c (main): Delete generation of definitions which are
now in recog.c.
* local-alloc.c (block_alloc): Use extract_insn and the variables
it sets up instead of looking up values by insn_code.
* recog.c (recog_operand, recog_operand_loc, recog_dup_loc,
recog_dup_num): Define here instead of generating the definition in
genrecog.c.
(recog_n_operands, recog_n_dups, recog_n_alternatives,
recog_operand_mode, recog_constraints, recog_operand_address_p):
New variables.
(extract_insn): New function.
* recog.h (extract_insn): Declare function.
(which_alternative, recog_n_operands, recog_n_dups,
recog_n_alternatives, recog_operand_mode, recog_constraints,
recog_operand_address_p): Declare variables.
* regclass.c (n_occurrences): New static function.
* reload.c (n_occurrences): Delete function.
(find_reloads): Use extract_insn.
* reload.h (n_occurrences): Delete declaration.
From-SVN: r23147
1998-10-17 03:28:57 +02:00
|
|
|
|
/* Dispose quickly of (set (reg..) (reg..)) if both have hard regs and it
|
|
|
|
|
is cheap to move between them. If it is not, there may not be an insn
|
|
|
|
|
to do the copy, so we may need a reload. */
|
|
|
|
|
if (GET_CODE (body) == SET
|
|
|
|
|
&& GET_CODE (SET_DEST (body)) == REG
|
|
|
|
|
&& REGNO (SET_DEST (body)) < FIRST_PSEUDO_REGISTER
|
|
|
|
|
&& GET_CODE (SET_SRC (body)) == REG
|
|
|
|
|
&& REGNO (SET_SRC (body)) < FIRST_PSEUDO_REGISTER
|
2001-01-02 01:59:52 +01:00
|
|
|
|
&& REGISTER_MOVE_COST (GET_MODE (SET_SRC (body)),
|
|
|
|
|
REGNO_REG_CLASS (REGNO (SET_SRC (body))),
|
Makefile.in (insn-extract.o): Fix dependencies.
* Makefile.in (insn-extract.o): Fix dependencies.
* genextract.c (main): Generate includes for insn-config.h and
recog.h.
Delete generation of declarations which are now in recog.h.
* genrecog.c (main): Delete generation of definitions which are
now in recog.c.
* local-alloc.c (block_alloc): Use extract_insn and the variables
it sets up instead of looking up values by insn_code.
* recog.c (recog_operand, recog_operand_loc, recog_dup_loc,
recog_dup_num): Define here instead of generating the definition in
genrecog.c.
(recog_n_operands, recog_n_dups, recog_n_alternatives,
recog_operand_mode, recog_constraints, recog_operand_address_p):
New variables.
(extract_insn): New function.
* recog.h (extract_insn): Declare function.
(which_alternative, recog_n_operands, recog_n_dups,
recog_n_alternatives, recog_operand_mode, recog_constraints,
recog_operand_address_p): Declare variables.
* regclass.c (n_occurrences): New static function.
* reload.c (n_occurrences): Delete function.
(find_reloads): Use extract_insn.
* reload.h (n_occurrences): Delete declaration.
From-SVN: r23147
1998-10-17 03:28:57 +02:00
|
|
|
|
REGNO_REG_CLASS (REGNO (SET_DEST (body)))) == 2)
|
|
|
|
|
return 0;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
Makefile.in (insn-extract.o): Fix dependencies.
* Makefile.in (insn-extract.o): Fix dependencies.
* genextract.c (main): Generate includes for insn-config.h and
recog.h.
Delete generation of declarations which are now in recog.h.
* genrecog.c (main): Delete generation of definitions which are
now in recog.c.
* local-alloc.c (block_alloc): Use extract_insn and the variables
it sets up instead of looking up values by insn_code.
* recog.c (recog_operand, recog_operand_loc, recog_dup_loc,
recog_dup_num): Define here instead of generating the definition in
genrecog.c.
(recog_n_operands, recog_n_dups, recog_n_alternatives,
recog_operand_mode, recog_constraints, recog_operand_address_p):
New variables.
(extract_insn): New function.
* recog.h (extract_insn): Declare function.
(which_alternative, recog_n_operands, recog_n_dups,
recog_n_alternatives, recog_operand_mode, recog_constraints,
recog_operand_address_p): Declare variables.
* regclass.c (n_occurrences): New static function.
* reload.c (n_occurrences): Delete function.
(find_reloads): Use extract_insn.
* reload.h (n_occurrences): Delete declaration.
From-SVN: r23147
1998-10-17 03:28:57 +02:00
|
|
|
|
extract_insn (insn);
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
1999-09-12 03:51:28 +02:00
|
|
|
|
noperands = reload_n_operands = recog_data.n_operands;
|
|
|
|
|
n_alternatives = recog_data.n_alternatives;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
Makefile.in (insn-extract.o): Fix dependencies.
* Makefile.in (insn-extract.o): Fix dependencies.
* genextract.c (main): Generate includes for insn-config.h and
recog.h.
Delete generation of declarations which are now in recog.h.
* genrecog.c (main): Delete generation of definitions which are
now in recog.c.
* local-alloc.c (block_alloc): Use extract_insn and the variables
it sets up instead of looking up values by insn_code.
* recog.c (recog_operand, recog_operand_loc, recog_dup_loc,
recog_dup_num): Define here instead of generating the definition in
genrecog.c.
(recog_n_operands, recog_n_dups, recog_n_alternatives,
recog_operand_mode, recog_constraints, recog_operand_address_p):
New variables.
(extract_insn): New function.
* recog.h (extract_insn): Declare function.
(which_alternative, recog_n_operands, recog_n_dups,
recog_n_alternatives, recog_operand_mode, recog_constraints,
recog_operand_address_p): Declare variables.
* regclass.c (n_occurrences): New static function.
* reload.c (n_occurrences): Delete function.
(find_reloads): Use extract_insn.
* reload.h (n_occurrences): Delete declaration.
From-SVN: r23147
1998-10-17 03:28:57 +02:00
|
|
|
|
/* Just return "no reloads" if insn has no operands with constraints. */
|
|
|
|
|
if (noperands == 0 || n_alternatives == 0)
|
|
|
|
|
return 0;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
Makefile.in (insn-extract.o): Fix dependencies.
* Makefile.in (insn-extract.o): Fix dependencies.
* genextract.c (main): Generate includes for insn-config.h and
recog.h.
Delete generation of declarations which are now in recog.h.
* genrecog.c (main): Delete generation of definitions which are
now in recog.c.
* local-alloc.c (block_alloc): Use extract_insn and the variables
it sets up instead of looking up values by insn_code.
* recog.c (recog_operand, recog_operand_loc, recog_dup_loc,
recog_dup_num): Define here instead of generating the definition in
genrecog.c.
(recog_n_operands, recog_n_dups, recog_n_alternatives,
recog_operand_mode, recog_constraints, recog_operand_address_p):
New variables.
(extract_insn): New function.
* recog.h (extract_insn): Declare function.
(which_alternative, recog_n_operands, recog_n_dups,
recog_n_alternatives, recog_operand_mode, recog_constraints,
recog_operand_address_p): Declare variables.
* regclass.c (n_occurrences): New static function.
* reload.c (n_occurrences): Delete function.
(find_reloads): Use extract_insn.
* reload.h (n_occurrences): Delete declaration.
From-SVN: r23147
1998-10-17 03:28:57 +02:00
|
|
|
|
insn_code_number = INSN_CODE (insn);
|
|
|
|
|
this_insn_is_asm = insn_code_number < 0;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
collect2.c (scan_prog_file, [...]): Prototype function pointers and casts for `int_handler' and `quit_handler'.
* collect2.c (scan_prog_file, scan_libraries): Prototype function
pointers and casts for `int_handler' and `quit_handler'.
* flow.c (verify_flow_info, split_hard_reg_notes,
find_insn_with_note, sets_reg_or_subreg_1, prepend_reg_notes,
remove_edge, remove_fake_successors): Add static prototypes.
(verify_flow_info): Wrap with macro ENABLE_CHECKING.
(mark_set_1): Initialize variable `regno'.
(unlink_insn_chain): Likewise for variable `curr'.
(remove_fake_edges): Remove unused variables `e', `tmp' and `last'.
* loop.c (strength_reduce): Initialize variable
`unrolled_insn_copies'.
(cmp_combine_givs_stats, cmp_recombine_givs_stats): Add static
prototypes. Change these functions to take const PTR parameters
to avoid prototype conflict when used as the comparson argument
for qsort.
(check_dbra_loop): Initialize variable `comparison_val'.
* reload.c (debug_reload_to_stream, debug_reload): Add prototypes.
(get_secondary_mem): Mark parameter `x' with ATTRIBUTE_UNUSED.
(find_valid_class): Initialize variable `best_class'.
(find_reloads): Call memcpy, not bcopy.
* reload1.c (gen_mode_int, dump_needs): Add prototypes.
(hard_reg_use_compare): Don't needlessly cast away const.
(reload_reg_class_lower): Likewise.
(choose_reload_regs): Initialize variable `regno'.
From-SVN: r29840
1999-10-06 16:48:41 +02:00
|
|
|
|
memcpy (operand_mode, recog_data.operand_mode,
|
|
|
|
|
noperands * sizeof (enum machine_mode));
|
|
|
|
|
memcpy (constraints, recog_data.constraints, noperands * sizeof (char *));
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
|
|
|
|
commutative = -1;
|
|
|
|
|
|
|
|
|
|
/* If we will need to know, later, whether some pair of operands
|
|
|
|
|
are the same, we must compare them now and save the result.
|
|
|
|
|
Reloading the base and index registers will clobber them
|
|
|
|
|
and afterward they will fail to match. */
|
|
|
|
|
|
|
|
|
|
for (i = 0; i < noperands; i++)
|
|
|
|
|
{
|
2001-10-11 05:16:15 +02:00
|
|
|
|
char *p;
|
|
|
|
|
int c;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
1999-09-12 03:51:28 +02:00
|
|
|
|
substed_operand[i] = recog_data.operand[i];
|
1992-02-28 11:23:25 +01:00
|
|
|
|
p = constraints[i];
|
|
|
|
|
|
1993-03-29 13:27:52 +02:00
|
|
|
|
modified[i] = RELOAD_READ;
|
|
|
|
|
|
1999-09-01 16:30:35 +02:00
|
|
|
|
/* Scan this operand's constraint to see if it is an output operand,
|
1993-03-29 13:27:52 +02:00
|
|
|
|
an in-out operand, is commutative, or should match another. */
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
1998-02-28 08:06:53 +01:00
|
|
|
|
while ((c = *p++))
|
1993-03-29 13:27:52 +02:00
|
|
|
|
{
|
|
|
|
|
if (c == '=')
|
|
|
|
|
modified[i] = RELOAD_WRITE;
|
|
|
|
|
else if (c == '+')
|
|
|
|
|
modified[i] = RELOAD_READ_WRITE;
|
|
|
|
|
else if (c == '%')
|
|
|
|
|
{
|
|
|
|
|
/* The last operand should not be marked commutative. */
|
|
|
|
|
if (i == noperands - 1)
|
1998-10-08 06:07:40 +02:00
|
|
|
|
abort ();
|
|
|
|
|
|
|
|
|
|
commutative = i;
|
1993-03-29 13:27:52 +02:00
|
|
|
|
}
|
c-format.c (maybe_read_dollar_number): Use safe-ctype macros and/or fold extra calls into fewer ones.
* c-format.c (maybe_read_dollar_number): Use safe-ctype macros
and/or fold extra calls into fewer ones.
* collect2.c (dump_file): Likewise.
* cppexp.c (parse_number): Likewise.
* cpplex.c (_cpp_lex_direct): Likewise.
* final.c (output_asm_insn, asm_fprintf): Likewise.
* fix-header.c (inf_scan_ident, main): Likewise.
* fixinc/fixfixes.c (char_macro_use_fix, char_macro_def_fix):
Likewise.
* fold-const.c (real_hex_to_f): Likewise.
* gen-protos.c (parse_fn_proto): Likewise.
* genattrtab.c (check_attr_test, check_attr_value): Likewise.
* genrecog.c (change_state, write_action): Likewise.
* gensupport.c (shift_output_template): Likewise.
* local-alloc.c (requires_inout): Likewise.
* mips-tfile.c (IS_ASM_IDENT): Likewise.
* protoize.c (is_id_char, main): Likewise.
* real.c (asctoeg): Likewise.
* recog.c (asm_operand_ok): Likewise.
* reload.c (find_reloads): Likewise.
* scan.c (scan_identget_token): Likewise.
* sched-vis.c (print_value): Likewise.
* stringpool.c (ggc_alloc_string): Likewise.
* toplev.c (read_integral_parameter, decode_g_option): Likewise.
* tradcif.y (parse_number, yylex, parse_escape): Likewise.
* tradcpp.c (rescan): Likewise.
* tree.c (clean_symbol_name): Likewise.
* varasm.c (decode_reg_name): Likewise.
* alpha.h (ASM_OUTPUT_ASCII): Likewise.
* darwin.c (name_needs_quotes, func_name_maybe_scoped): Likewise.
* dsp16xx.h (ASM_OUTPUT_ASCII): Likewise.
* m88k.c (output_ascii): Likewise.
* m88k.h (OVERRIDE_OPTIONS): Likewise.
* mcore.h (REG_CLASS_FROM_LETTER): Likewise.
* ns32k/encore.h (ASM_OUTPUT_ASCII): Likewise.
* sh.h (REG_CLASS_FROM_LETTER): Likewise.
cp:
* xref.c (GNU_xref_member): Use safe-ctype macros and/or fold
extra calls into fewer ones.
f:
* bad.c (ffebad_finish): Use safe-ctype macros and/or fold extra
calls into fewer ones.
* implic.c (ffeimplic_lookup_): Likewise.
* intdoc.c (dumpimp): Likewise.
* intrin.c (ffeintrin_init_0): Likewise.
* lex.c (ffelex_backslash_, ffelex_cfebackslash_, ffelex_hash_):
Likewise.
* lex.h (ffelex_is_firstnamechar): Likewise.
* target.c (ffetarget_integerhex): Likewise.
java:
* gjavah.c (jni_print_char, decode_signature_piece): Use
safe-ctype macros and/or fold extra calls into fewer ones.
* lex.c (java_read_unicode, java_lex): Likewise.
* lex.h (JAVA_START_CHAR_P, JAVA_PART_CHAR_P, JAVA_ASCII_DIGIT,
JAVA_ASCII_HEXDIGIT, JAVA_ASCII_LETTER): Likewise.
* mangle_name.c (append_unicode_mangled_name,
unicode_mangling_length): Likewise.
From-SVN: r46397
2001-10-21 23:32:15 +02:00
|
|
|
|
else if (ISDIGIT (c))
|
1993-03-29 13:27:52 +02:00
|
|
|
|
{
|
2001-10-11 09:07:30 +02:00
|
|
|
|
c = strtoul (p - 1, &p, 10);
|
|
|
|
|
|
1993-03-29 13:27:52 +02:00
|
|
|
|
operands_match[c][i]
|
1999-09-12 03:51:28 +02:00
|
|
|
|
= operands_match_p (recog_data.operand[c],
|
|
|
|
|
recog_data.operand[i]);
|
1992-10-14 23:51:59 +01:00
|
|
|
|
|
1993-03-29 13:27:52 +02:00
|
|
|
|
/* An operand may not match itself. */
|
|
|
|
|
if (c == i)
|
1998-10-08 06:07:40 +02:00
|
|
|
|
abort ();
|
1992-10-14 23:51:59 +01:00
|
|
|
|
|
1993-03-29 13:27:52 +02:00
|
|
|
|
/* If C can be commuted with C+1, and C might need to match I,
|
|
|
|
|
then C+1 might also need to match I. */
|
|
|
|
|
if (commutative >= 0)
|
|
|
|
|
{
|
|
|
|
|
if (c == commutative || c == commutative + 1)
|
|
|
|
|
{
|
|
|
|
|
int other = c + (c == commutative ? 1 : -1);
|
|
|
|
|
operands_match[other][i]
|
1999-09-12 03:51:28 +02:00
|
|
|
|
= operands_match_p (recog_data.operand[other],
|
|
|
|
|
recog_data.operand[i]);
|
1993-03-29 13:27:52 +02:00
|
|
|
|
}
|
|
|
|
|
if (i == commutative || i == commutative + 1)
|
|
|
|
|
{
|
|
|
|
|
int other = i + (i == commutative ? 1 : -1);
|
|
|
|
|
operands_match[c][other]
|
1999-09-12 03:51:28 +02:00
|
|
|
|
= operands_match_p (recog_data.operand[c],
|
|
|
|
|
recog_data.operand[other]);
|
1993-03-29 13:27:52 +02:00
|
|
|
|
}
|
|
|
|
|
/* Note that C is supposed to be less than I.
|
|
|
|
|
No need to consider altering both C and I because in
|
|
|
|
|
that case we would alter one into the other. */
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
1992-02-28 11:23:25 +01:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Examine each operand that is a memory reference or memory address
|
|
|
|
|
and reload parts of the addresses into index registers.
|
|
|
|
|
Also here any references to pseudo regs that didn't get hard regs
|
|
|
|
|
but are equivalent to constants get replaced in the insn itself
|
1999-09-01 16:30:35 +02:00
|
|
|
|
with those constants. Nobody will ever see them again.
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
|
|
|
|
Finally, set up the preferred classes of each operand. */
|
|
|
|
|
|
|
|
|
|
for (i = 0; i < noperands; i++)
|
|
|
|
|
{
|
2001-10-11 05:16:15 +02:00
|
|
|
|
RTX_CODE code = GET_CODE (recog_data.operand[i]);
|
1993-03-29 13:27:52 +02:00
|
|
|
|
|
1992-02-28 11:23:25 +01:00
|
|
|
|
address_reloaded[i] = 0;
|
1993-03-29 13:27:52 +02:00
|
|
|
|
operand_type[i] = (modified[i] == RELOAD_READ ? RELOAD_FOR_INPUT
|
|
|
|
|
: modified[i] == RELOAD_WRITE ? RELOAD_FOR_OUTPUT
|
|
|
|
|
: RELOAD_OTHER);
|
|
|
|
|
address_type[i]
|
|
|
|
|
= (modified[i] == RELOAD_READ ? RELOAD_FOR_INPUT_ADDRESS
|
|
|
|
|
: modified[i] == RELOAD_WRITE ? RELOAD_FOR_OUTPUT_ADDRESS
|
|
|
|
|
: RELOAD_OTHER);
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
1993-09-29 03:21:41 +01:00
|
|
|
|
if (*constraints[i] == 0)
|
|
|
|
|
/* Ignore things like match_operator operands. */
|
|
|
|
|
;
|
|
|
|
|
else if (constraints[i][0] == 'p')
|
1992-02-28 11:23:25 +01:00
|
|
|
|
{
|
2002-01-10 01:56:56 +01:00
|
|
|
|
find_reloads_address (VOIDmode, (rtx*) 0,
|
1999-09-12 03:51:28 +02:00
|
|
|
|
recog_data.operand[i],
|
|
|
|
|
recog_data.operand_loc[i],
|
1997-03-15 13:28:39 +01:00
|
|
|
|
i, operand_type[i], ind_levels, insn);
|
1997-01-03 16:50:25 +01:00
|
|
|
|
|
1999-09-01 16:30:35 +02:00
|
|
|
|
/* If we now have a simple operand where we used to have a
|
1997-01-03 16:50:25 +01:00
|
|
|
|
PLUS or MULT, re-recognize and try again. */
|
1999-09-12 03:51:28 +02:00
|
|
|
|
if ((GET_RTX_CLASS (GET_CODE (*recog_data.operand_loc[i])) == 'o'
|
|
|
|
|
|| GET_CODE (*recog_data.operand_loc[i]) == SUBREG)
|
|
|
|
|
&& (GET_CODE (recog_data.operand[i]) == MULT
|
|
|
|
|
|| GET_CODE (recog_data.operand[i]) == PLUS))
|
1997-01-03 16:50:25 +01:00
|
|
|
|
{
|
|
|
|
|
INSN_CODE (insn) = -1;
|
Fix consistency problems with reg_equiv_{mem,address};
Improve reload inheritance;
* reload.c (reload_out_reg): New variable.
(loc_mentioned_in_p, remove_address_replacements): New functions.
(remove_replacements): Deleted.
(push_reload): Set reload_out_reg[i].
When merging, also set reload_{in,out}_reg[i], and remove
duplicate address reloads.
(combine_reloads): Copy reload_out_reg[i].
(find_reloads): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
Include *recog_operand_loc in commutativity operand changes.
Generate optional output reloads.
Delete reference to n_memlocs. Don't set *recog_operand_loc before
processing operands. Call make_memloc in reg_equiv_address code.
Set *recog_operand_loc only after processing operands, and only
if replace is true. Return a value.
When changing address reload types for operands that didn't get
reloaded, use RELOAD_FOR_OPADDR_ADDRESS for
RELOAD_FOR_INPADDR_ADDRESS / RELOAD_FOR_OUTADDR_ADDRESS reloads.
Don't emit USEs for pseudo SUBREGs when not replacing.
(find_reloads_address): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
(find_reloads_toplev): Likewise.
Call make_memloc in reg_equiv_address code.
(debug_reload_to_stream): Add code to output reload_out_reg.
(make_memloc): Delete local variable i, ifdefed out code, and
references to memlocs and n_memlocs.
(memlocs, n_memlocs): Delete.
(push_secondary_reload): Clear reload_out_reg.
(find_reloads_address_1): Provide memrefloc argument to all calls
to find_reloads_address.
In AUTO_INC code, handle non-directly addressable equivalences properly.
* reload.h (reload_out_reg, num_not_at_initial_offset): Declare.
(find_reloads): Add return type.
(remove_address_replacements, deallocate_reload_reg): Declare.
* reload1.c (num_not_at_initial_offset): No longer static.
(delete_address_reloads, delete_address_reloads_1): Likewise.
(deallocate_reload_reg): New function.
(spill_reg_stored_to): New array.
(eliminate_regs): Don't substitute from reg_equiv_memory_loc.
(eliminate_regs_in_insn): Move assignments of previous_offset and
max_offset fields, and recalculation of num_not_at_initial_offset
into new static function:
(update_eliminable_offsets) .
(reload_as_needed): Call update_eliminable_offsetss after calling
find_reloads.
Call forget_old_reloads_1 with contents of reloaded auto_inc
expressions if the actual addressing can't be changed to match the
auto_inc.
(choose_reload_regs): For inheritance, replace
reload_reg_free_before_p test with reload_reg_ions.
(emit_reload_insns): If reload_in is a MEM, set OLD to
reload_in_reg[j].
Don't reload directly from oldequiv; if it's a pseudo with a
stack slot, use reload_in[j].
Check that reload_in_reg[j] is a MEM before replacing reload_in
from reg_reloaded_contents.
Include non-spill registers in reload inheritance processing.
Also try to use reload_out_reg to set spill_reg_store /
reg_last_reload_reg.
In code to set new_spill_reg_store, use single_set to find out if
there is a single set.
Add code that allows to delete optional output reloads.
Add code to allow deletion of output reloads that use no spill reg.
At the end, set reload_override_in to oldequiv.
Also call delete_output_reload if reload_out_reg is equal to old
in oldequiv code.
Add code to call delete_output_reload for stores with no matching load.
Set / use spill_reg_stored_to.
Handle case where secondary output reload uses a temporary, but
actual store isn't found.
When looking for a store of a value not loaded in order to call
delete_output_reload, count_occurences should return 0 for no
loads; but discount inherited input reloadill_reg_stored_to.
Do checks for extra uses of REG. Changed all
callers.
Use delete_address_reloads.
(reload): Take return value of find_reloads into account.
If a no-op set needs more than one reload, delete it.
(reload_reg_free_before_p): RELOAD_FOR_INPUT
can ignore RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS
for the same operand.
(clear_reload_reg_in_use): Check for other reloads that keep a
register in use.
(reload_reg_free_for_value_p): handle RELOAD_FOR_OPERAND_ADDRESS /
RELOAD_FOR_OPADDR_ADDR.
Take into account when an address address reload is only needed
for the address reload we are considering.
(count_occurrences): Use rtx_equal_p for MEMs.
(inc_for_reload): Return instruction that stores into RELOADREG.
New argument two, IN, and rtx. Changed all callers.
(calculate_needs_all_insns, reload_as_needed):
Don't clear after_call for a CLOBBER.
Keep track of how many hard registers need to be copied from
after_call, and don't clear after_call before we have seen
that much copies, or we see a different instruction.
From-SVN: r23143
1998-10-16 21:54:38 +02:00
|
|
|
|
retval = find_reloads (insn, replace, ind_levels, live_known,
|
|
|
|
|
reload_reg_p);
|
|
|
|
|
return retval;
|
1997-01-03 16:50:25 +01:00
|
|
|
|
}
|
|
|
|
|
|
1999-09-12 03:51:28 +02:00
|
|
|
|
recog_data.operand[i] = *recog_data.operand_loc[i];
|
|
|
|
|
substed_operand[i] = recog_data.operand[i];
|
1992-02-28 11:23:25 +01:00
|
|
|
|
}
|
|
|
|
|
else if (code == MEM)
|
|
|
|
|
{
|
1999-01-27 02:43:17 +01:00
|
|
|
|
address_reloaded[i]
|
1999-09-12 03:51:28 +02:00
|
|
|
|
= find_reloads_address (GET_MODE (recog_data.operand[i]),
|
|
|
|
|
recog_data.operand_loc[i],
|
|
|
|
|
XEXP (recog_data.operand[i], 0),
|
|
|
|
|
&XEXP (recog_data.operand[i], 0),
|
1999-01-27 02:43:17 +01:00
|
|
|
|
i, address_type[i], ind_levels, insn);
|
1999-09-12 03:51:28 +02:00
|
|
|
|
recog_data.operand[i] = *recog_data.operand_loc[i];
|
|
|
|
|
substed_operand[i] = recog_data.operand[i];
|
1992-02-28 11:23:25 +01:00
|
|
|
|
}
|
|
|
|
|
else if (code == SUBREG)
|
1998-05-01 19:40:53 +02:00
|
|
|
|
{
|
1999-09-12 03:51:28 +02:00
|
|
|
|
rtx reg = SUBREG_REG (recog_data.operand[i]);
|
1998-05-01 19:40:53 +02:00
|
|
|
|
rtx op
|
1999-09-12 03:51:28 +02:00
|
|
|
|
= find_reloads_toplev (recog_data.operand[i], i, address_type[i],
|
1998-05-01 19:40:53 +02:00
|
|
|
|
ind_levels,
|
|
|
|
|
set != 0
|
1999-09-12 03:51:28 +02:00
|
|
|
|
&& &SET_DEST (set) == recog_data.operand_loc[i],
|
2000-07-23 08:17:41 +02:00
|
|
|
|
insn,
|
|
|
|
|
&address_reloaded[i]);
|
1998-05-01 19:40:53 +02:00
|
|
|
|
|
|
|
|
|
/* If we made a MEM to load (a part of) the stackslot of a pseudo
|
|
|
|
|
that didn't get a hard register, emit a USE with a REG_EQUAL
|
|
|
|
|
note in front so that we might inherit a previous, possibly
|
|
|
|
|
wider reload. */
|
1999-09-01 16:30:35 +02:00
|
|
|
|
|
Fix consistency problems with reg_equiv_{mem,address};
Improve reload inheritance;
* reload.c (reload_out_reg): New variable.
(loc_mentioned_in_p, remove_address_replacements): New functions.
(remove_replacements): Deleted.
(push_reload): Set reload_out_reg[i].
When merging, also set reload_{in,out}_reg[i], and remove
duplicate address reloads.
(combine_reloads): Copy reload_out_reg[i].
(find_reloads): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
Include *recog_operand_loc in commutativity operand changes.
Generate optional output reloads.
Delete reference to n_memlocs. Don't set *recog_operand_loc before
processing operands. Call make_memloc in reg_equiv_address code.
Set *recog_operand_loc only after processing operands, and only
if replace is true. Return a value.
When changing address reload types for operands that didn't get
reloaded, use RELOAD_FOR_OPADDR_ADDRESS for
RELOAD_FOR_INPADDR_ADDRESS / RELOAD_FOR_OUTADDR_ADDRESS reloads.
Don't emit USEs for pseudo SUBREGs when not replacing.
(find_reloads_address): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
(find_reloads_toplev): Likewise.
Call make_memloc in reg_equiv_address code.
(debug_reload_to_stream): Add code to output reload_out_reg.
(make_memloc): Delete local variable i, ifdefed out code, and
references to memlocs and n_memlocs.
(memlocs, n_memlocs): Delete.
(push_secondary_reload): Clear reload_out_reg.
(find_reloads_address_1): Provide memrefloc argument to all calls
to find_reloads_address.
In AUTO_INC code, handle non-directly addressable equivalences properly.
* reload.h (reload_out_reg, num_not_at_initial_offset): Declare.
(find_reloads): Add return type.
(remove_address_replacements, deallocate_reload_reg): Declare.
* reload1.c (num_not_at_initial_offset): No longer static.
(delete_address_reloads, delete_address_reloads_1): Likewise.
(deallocate_reload_reg): New function.
(spill_reg_stored_to): New array.
(eliminate_regs): Don't substitute from reg_equiv_memory_loc.
(eliminate_regs_in_insn): Move assignments of previous_offset and
max_offset fields, and recalculation of num_not_at_initial_offset
into new static function:
(update_eliminable_offsets) .
(reload_as_needed): Call update_eliminable_offsetss after calling
find_reloads.
Call forget_old_reloads_1 with contents of reloaded auto_inc
expressions if the actual addressing can't be changed to match the
auto_inc.
(choose_reload_regs): For inheritance, replace
reload_reg_free_before_p test with reload_reg_ions.
(emit_reload_insns): If reload_in is a MEM, set OLD to
reload_in_reg[j].
Don't reload directly from oldequiv; if it's a pseudo with a
stack slot, use reload_in[j].
Check that reload_in_reg[j] is a MEM before replacing reload_in
from reg_reloaded_contents.
Include non-spill registers in reload inheritance processing.
Also try to use reload_out_reg to set spill_reg_store /
reg_last_reload_reg.
In code to set new_spill_reg_store, use single_set to find out if
there is a single set.
Add code that allows to delete optional output reloads.
Add code to allow deletion of output reloads that use no spill reg.
At the end, set reload_override_in to oldequiv.
Also call delete_output_reload if reload_out_reg is equal to old
in oldequiv code.
Add code to call delete_output_reload for stores with no matching load.
Set / use spill_reg_stored_to.
Handle case where secondary output reload uses a temporary, but
actual store isn't found.
When looking for a store of a value not loaded in order to call
delete_output_reload, count_occurences should return 0 for no
loads; but discount inherited input reloadill_reg_stored_to.
Do checks for extra uses of REG. Changed all
callers.
Use delete_address_reloads.
(reload): Take return value of find_reloads into account.
If a no-op set needs more than one reload, delete it.
(reload_reg_free_before_p): RELOAD_FOR_INPUT
can ignore RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS
for the same operand.
(clear_reload_reg_in_use): Check for other reloads that keep a
register in use.
(reload_reg_free_for_value_p): handle RELOAD_FOR_OPERAND_ADDRESS /
RELOAD_FOR_OPADDR_ADDR.
Take into account when an address address reload is only needed
for the address reload we are considering.
(count_occurrences): Use rtx_equal_p for MEMs.
(inc_for_reload): Return instruction that stores into RELOADREG.
New argument two, IN, and rtx. Changed all callers.
(calculate_needs_all_insns, reload_as_needed):
Don't clear after_call for a CLOBBER.
Keep track of how many hard registers need to be copied from
after_call, and don't clear after_call before we have seen
that much copies, or we see a different instruction.
From-SVN: r23143
1998-10-16 21:54:38 +02:00
|
|
|
|
if (replace
|
|
|
|
|
&& GET_CODE (op) == MEM
|
1998-05-01 19:40:53 +02:00
|
|
|
|
&& GET_CODE (reg) == REG
|
|
|
|
|
&& (GET_MODE_SIZE (GET_MODE (reg))
|
|
|
|
|
>= GET_MODE_SIZE (GET_MODE (op))))
|
2001-10-30 13:41:45 +01:00
|
|
|
|
set_unique_reg_note (emit_insn_before (gen_rtx_USE (VOIDmode, reg),
|
|
|
|
|
insn),
|
|
|
|
|
REG_EQUAL, reg_equiv_memory_loc[REGNO (reg)]);
|
1998-05-01 19:40:53 +02:00
|
|
|
|
|
1999-09-12 03:51:28 +02:00
|
|
|
|
substed_operand[i] = recog_data.operand[i] = op;
|
1998-05-01 19:40:53 +02:00
|
|
|
|
}
|
1996-10-24 00:01:23 +02:00
|
|
|
|
else if (code == PLUS || GET_RTX_CLASS (code) == '1')
|
|
|
|
|
/* We can get a PLUS as an "operand" as a result of register
|
|
|
|
|
elimination. See eliminate_regs and gen_reload. We handle
|
|
|
|
|
a unary operator by reloading the operand. */
|
1999-09-12 03:51:28 +02:00
|
|
|
|
substed_operand[i] = recog_data.operand[i]
|
|
|
|
|
= find_reloads_toplev (recog_data.operand[i], i, address_type[i],
|
2000-07-23 08:17:41 +02:00
|
|
|
|
ind_levels, 0, insn,
|
|
|
|
|
&address_reloaded[i]);
|
1992-02-28 11:23:25 +01:00
|
|
|
|
else if (code == REG)
|
|
|
|
|
{
|
|
|
|
|
/* This is equivalent to calling find_reloads_toplev.
|
|
|
|
|
The code is duplicated for speed.
|
|
|
|
|
When we find a pseudo always equivalent to a constant,
|
|
|
|
|
we replace it by the constant. We must be sure, however,
|
|
|
|
|
that we don't try to replace it in the insn in which it
|
2001-10-10 13:33:39 +02:00
|
|
|
|
is being set. */
|
2001-10-11 05:16:15 +02:00
|
|
|
|
int regno = REGNO (recog_data.operand[i]);
|
1992-02-28 11:23:25 +01:00
|
|
|
|
if (reg_equiv_constant[regno] != 0
|
1999-09-12 03:51:28 +02:00
|
|
|
|
&& (set == 0 || &SET_DEST (set) != recog_data.operand_loc[i]))
|
reload.c (find_reloads): Record the existing mode if operand_mode == VOIDmode before replacing a...
* reload.c (find_reloads): Record the existing mode if
operand_mode == VOIDmode before replacing a register with
a constant.
* i386.md (tstsi, tsthi, tstqi, tstsf, tstdf, tstxf): Set
i386_compare_op1 to const0_rtx for the benefit of the
conditional move patterns.
(movsicc, movhicc, movsfcc, movdfcc, movxfcc, movdicc): Rewrite
based on suggestions from Jim Wilson.
From-SVN: r20151
1998-05-31 17:13:36 +02:00
|
|
|
|
{
|
|
|
|
|
/* Record the existing mode so that the check if constants are
|
1999-09-12 16:54:56 +02:00
|
|
|
|
allowed will work when operand_mode isn't specified. */
|
reload.c (find_reloads): Record the existing mode if operand_mode == VOIDmode before replacing a...
* reload.c (find_reloads): Record the existing mode if
operand_mode == VOIDmode before replacing a register with
a constant.
* i386.md (tstsi, tsthi, tstqi, tstsf, tstdf, tstxf): Set
i386_compare_op1 to const0_rtx for the benefit of the
conditional move patterns.
(movsicc, movhicc, movsfcc, movdfcc, movxfcc, movdicc): Rewrite
based on suggestions from Jim Wilson.
From-SVN: r20151
1998-05-31 17:13:36 +02:00
|
|
|
|
|
|
|
|
|
if (operand_mode[i] == VOIDmode)
|
1999-09-12 03:51:28 +02:00
|
|
|
|
operand_mode[i] = GET_MODE (recog_data.operand[i]);
|
reload.c (find_reloads): Record the existing mode if operand_mode == VOIDmode before replacing a...
* reload.c (find_reloads): Record the existing mode if
operand_mode == VOIDmode before replacing a register with
a constant.
* i386.md (tstsi, tsthi, tstqi, tstsf, tstdf, tstxf): Set
i386_compare_op1 to const0_rtx for the benefit of the
conditional move patterns.
(movsicc, movhicc, movsfcc, movdfcc, movxfcc, movdicc): Rewrite
based on suggestions from Jim Wilson.
From-SVN: r20151
1998-05-31 17:13:36 +02:00
|
|
|
|
|
1999-09-12 03:51:28 +02:00
|
|
|
|
substed_operand[i] = recog_data.operand[i]
|
1999-09-01 16:30:35 +02:00
|
|
|
|
= reg_equiv_constant[regno];
|
reload.c (find_reloads): Record the existing mode if operand_mode == VOIDmode before replacing a...
* reload.c (find_reloads): Record the existing mode if
operand_mode == VOIDmode before replacing a register with
a constant.
* i386.md (tstsi, tsthi, tstqi, tstsf, tstdf, tstxf): Set
i386_compare_op1 to const0_rtx for the benefit of the
conditional move patterns.
(movsicc, movhicc, movsfcc, movdfcc, movxfcc, movdicc): Rewrite
based on suggestions from Jim Wilson.
From-SVN: r20151
1998-05-31 17:13:36 +02:00
|
|
|
|
}
|
Fix consistency problems with reg_equiv_{mem,address};
Improve reload inheritance;
* reload.c (reload_out_reg): New variable.
(loc_mentioned_in_p, remove_address_replacements): New functions.
(remove_replacements): Deleted.
(push_reload): Set reload_out_reg[i].
When merging, also set reload_{in,out}_reg[i], and remove
duplicate address reloads.
(combine_reloads): Copy reload_out_reg[i].
(find_reloads): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
Include *recog_operand_loc in commutativity operand changes.
Generate optional output reloads.
Delete reference to n_memlocs. Don't set *recog_operand_loc before
processing operands. Call make_memloc in reg_equiv_address code.
Set *recog_operand_loc only after processing operands, and only
if replace is true. Return a value.
When changing address reload types for operands that didn't get
reloaded, use RELOAD_FOR_OPADDR_ADDRESS for
RELOAD_FOR_INPADDR_ADDRESS / RELOAD_FOR_OUTADDR_ADDRESS reloads.
Don't emit USEs for pseudo SUBREGs when not replacing.
(find_reloads_address): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
(find_reloads_toplev): Likewise.
Call make_memloc in reg_equiv_address code.
(debug_reload_to_stream): Add code to output reload_out_reg.
(make_memloc): Delete local variable i, ifdefed out code, and
references to memlocs and n_memlocs.
(memlocs, n_memlocs): Delete.
(push_secondary_reload): Clear reload_out_reg.
(find_reloads_address_1): Provide memrefloc argument to all calls
to find_reloads_address.
In AUTO_INC code, handle non-directly addressable equivalences properly.
* reload.h (reload_out_reg, num_not_at_initial_offset): Declare.
(find_reloads): Add return type.
(remove_address_replacements, deallocate_reload_reg): Declare.
* reload1.c (num_not_at_initial_offset): No longer static.
(delete_address_reloads, delete_address_reloads_1): Likewise.
(deallocate_reload_reg): New function.
(spill_reg_stored_to): New array.
(eliminate_regs): Don't substitute from reg_equiv_memory_loc.
(eliminate_regs_in_insn): Move assignments of previous_offset and
max_offset fields, and recalculation of num_not_at_initial_offset
into new static function:
(update_eliminable_offsets) .
(reload_as_needed): Call update_eliminable_offsetss after calling
find_reloads.
Call forget_old_reloads_1 with contents of reloaded auto_inc
expressions if the actual addressing can't be changed to match the
auto_inc.
(choose_reload_regs): For inheritance, replace
reload_reg_free_before_p test with reload_reg_ions.
(emit_reload_insns): If reload_in is a MEM, set OLD to
reload_in_reg[j].
Don't reload directly from oldequiv; if it's a pseudo with a
stack slot, use reload_in[j].
Check that reload_in_reg[j] is a MEM before replacing reload_in
from reg_reloaded_contents.
Include non-spill registers in reload inheritance processing.
Also try to use reload_out_reg to set spill_reg_store /
reg_last_reload_reg.
In code to set new_spill_reg_store, use single_set to find out if
there is a single set.
Add code that allows to delete optional output reloads.
Add code to allow deletion of output reloads that use no spill reg.
At the end, set reload_override_in to oldequiv.
Also call delete_output_reload if reload_out_reg is equal to old
in oldequiv code.
Add code to call delete_output_reload for stores with no matching load.
Set / use spill_reg_stored_to.
Handle case where secondary output reload uses a temporary, but
actual store isn't found.
When looking for a store of a value not loaded in order to call
delete_output_reload, count_occurences should return 0 for no
loads; but discount inherited input reloadill_reg_stored_to.
Do checks for extra uses of REG. Changed all
callers.
Use delete_address_reloads.
(reload): Take return value of find_reloads into account.
If a no-op set needs more than one reload, delete it.
(reload_reg_free_before_p): RELOAD_FOR_INPUT
can ignore RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS
for the same operand.
(clear_reload_reg_in_use): Check for other reloads that keep a
register in use.
(reload_reg_free_for_value_p): handle RELOAD_FOR_OPERAND_ADDRESS /
RELOAD_FOR_OPADDR_ADDR.
Take into account when an address address reload is only needed
for the address reload we are considering.
(count_occurrences): Use rtx_equal_p for MEMs.
(inc_for_reload): Return instruction that stores into RELOADREG.
New argument two, IN, and rtx. Changed all callers.
(calculate_needs_all_insns, reload_as_needed):
Don't clear after_call for a CLOBBER.
Keep track of how many hard registers need to be copied from
after_call, and don't clear after_call before we have seen
that much copies, or we see a different instruction.
From-SVN: r23143
1998-10-16 21:54:38 +02:00
|
|
|
|
if (reg_equiv_memory_loc[regno] != 0
|
|
|
|
|
&& (reg_equiv_address[regno] != 0 || num_not_at_initial_offset))
|
|
|
|
|
/* We need not give a valid is_set_dest argument since the case
|
|
|
|
|
of a constant equivalence was checked above. */
|
1999-09-12 03:51:28 +02:00
|
|
|
|
substed_operand[i] = recog_data.operand[i]
|
|
|
|
|
= find_reloads_toplev (recog_data.operand[i], i, address_type[i],
|
2000-07-23 08:17:41 +02:00
|
|
|
|
ind_levels, 0, insn,
|
|
|
|
|
&address_reloaded[i]);
|
1992-02-28 11:23:25 +01:00
|
|
|
|
}
|
1992-05-05 17:59:06 +02:00
|
|
|
|
/* If the operand is still a register (we didn't replace it with an
|
|
|
|
|
equivalent), get the preferred class to reload it into. */
|
1999-09-12 03:51:28 +02:00
|
|
|
|
code = GET_CODE (recog_data.operand[i]);
|
1992-05-05 17:59:06 +02:00
|
|
|
|
preferred_class[i]
|
1999-09-12 03:51:28 +02:00
|
|
|
|
= ((code == REG && REGNO (recog_data.operand[i])
|
|
|
|
|
>= FIRST_PSEUDO_REGISTER)
|
|
|
|
|
? reg_preferred_class (REGNO (recog_data.operand[i]))
|
|
|
|
|
: NO_REGS);
|
1992-05-05 17:59:06 +02:00
|
|
|
|
pref_or_nothing[i]
|
1999-09-12 03:51:28 +02:00
|
|
|
|
= (code == REG
|
|
|
|
|
&& REGNO (recog_data.operand[i]) >= FIRST_PSEUDO_REGISTER
|
|
|
|
|
&& reg_alternate_class (REGNO (recog_data.operand[i])) == NO_REGS);
|
1992-02-28 11:23:25 +01:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* If this is simply a copy from operand 1 to operand 0, merge the
|
|
|
|
|
preferred classes for the operands. */
|
1999-09-12 03:51:28 +02:00
|
|
|
|
if (set != 0 && noperands >= 2 && recog_data.operand[0] == SET_DEST (set)
|
|
|
|
|
&& recog_data.operand[1] == SET_SRC (set))
|
1992-02-28 11:23:25 +01:00
|
|
|
|
{
|
|
|
|
|
preferred_class[0] = preferred_class[1]
|
|
|
|
|
= reg_class_subunion[(int) preferred_class[0]][(int) preferred_class[1]];
|
|
|
|
|
pref_or_nothing[0] |= pref_or_nothing[1];
|
|
|
|
|
pref_or_nothing[1] |= pref_or_nothing[0];
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Now see what we need for pseudo-regs that didn't get hard regs
|
|
|
|
|
or got the wrong kind of hard reg. For this, we must consider
|
|
|
|
|
all the operands together against the register constraints. */
|
|
|
|
|
|
1998-03-26 11:44:22 +01:00
|
|
|
|
best = MAX_RECOG_OPERANDS * 2 + 600;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
|
|
|
|
swapped = 0;
|
|
|
|
|
goal_alternative_swapped = 0;
|
|
|
|
|
try_swapped:
|
|
|
|
|
|
|
|
|
|
/* The constraints are made of several alternatives.
|
|
|
|
|
Each operand's constraint looks like foo,bar,... with commas
|
|
|
|
|
separating the alternatives. The first alternatives for all
|
|
|
|
|
operands go together, the second alternatives go together, etc.
|
|
|
|
|
|
|
|
|
|
First loop over alternatives. */
|
|
|
|
|
|
|
|
|
|
for (this_alternative_number = 0;
|
|
|
|
|
this_alternative_number < n_alternatives;
|
|
|
|
|
this_alternative_number++)
|
|
|
|
|
{
|
|
|
|
|
/* Loop over operands for one constraint alternative. */
|
|
|
|
|
/* LOSERS counts those that don't fit this alternative
|
|
|
|
|
and would require loading. */
|
|
|
|
|
int losers = 0;
|
|
|
|
|
/* BAD is set to 1 if it some operand can't fit this alternative
|
|
|
|
|
even after reloading. */
|
|
|
|
|
int bad = 0;
|
|
|
|
|
/* REJECT is a count of how undesirable this alternative says it is
|
|
|
|
|
if any reloading is required. If the alternative matches exactly
|
|
|
|
|
then REJECT is ignored, but otherwise it gets this much
|
1999-09-01 16:30:35 +02:00
|
|
|
|
counted against it in addition to the reloading needed. Each
|
1992-02-28 11:23:25 +01:00
|
|
|
|
? counts three times here since we want the disparaging caused by
|
|
|
|
|
a bad register class to only count 1/3 as much. */
|
|
|
|
|
int reject = 0;
|
|
|
|
|
|
|
|
|
|
this_earlyclobber = 0;
|
|
|
|
|
|
|
|
|
|
for (i = 0; i < noperands; i++)
|
|
|
|
|
{
|
2001-10-11 05:16:15 +02:00
|
|
|
|
char *p = constraints[i];
|
|
|
|
|
int win = 0;
|
2000-10-28 21:33:09 +02:00
|
|
|
|
int did_match = 0;
|
2001-07-24 00:41:10 +02:00
|
|
|
|
/* 0 => this operand can be reloaded somehow for this alternative. */
|
1992-02-28 11:23:25 +01:00
|
|
|
|
int badop = 1;
|
|
|
|
|
/* 0 => this operand can be reloaded if the alternative allows regs. */
|
|
|
|
|
int winreg = 0;
|
|
|
|
|
int c;
|
2001-10-11 05:16:15 +02:00
|
|
|
|
rtx operand = recog_data.operand[i];
|
1992-02-28 11:23:25 +01:00
|
|
|
|
int offset = 0;
|
|
|
|
|
/* Nonzero means this is a MEM that must be reloaded into a reg
|
|
|
|
|
regardless of what the constraint says. */
|
|
|
|
|
int force_reload = 0;
|
|
|
|
|
int offmemok = 0;
|
1994-05-17 21:51:48 +02:00
|
|
|
|
/* Nonzero if a constant forced into memory would be OK for this
|
|
|
|
|
operand. */
|
|
|
|
|
int constmemok = 0;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
int earlyclobber = 0;
|
|
|
|
|
|
1996-10-24 00:01:23 +02:00
|
|
|
|
/* If the predicate accepts a unary operator, it means that
|
1999-09-01 16:30:35 +02:00
|
|
|
|
we need to reload the operand, but do not do this for
|
1998-05-28 13:59:30 +02:00
|
|
|
|
match_operator and friends. */
|
|
|
|
|
if (GET_RTX_CLASS (GET_CODE (operand)) == '1' && *p != 0)
|
1996-10-24 00:01:23 +02:00
|
|
|
|
operand = XEXP (operand, 0);
|
|
|
|
|
|
1992-02-28 11:23:25 +01:00
|
|
|
|
/* If the operand is a SUBREG, extract
|
|
|
|
|
the REG or MEM (or maybe even a constant) within.
|
|
|
|
|
(Constants can occur as a result of reg_equiv_constant.) */
|
|
|
|
|
|
|
|
|
|
while (GET_CODE (operand) == SUBREG)
|
|
|
|
|
{
|
Use byte offsets in SUBREGs instead of words.
2001-04-03 Jakub Jelinek <jakub@redhat.com>
David S. Miller <davem@pierdol.cobaltmicro.com>
Andrew MacLeod <amacleod@redhat.com>
Use byte offsets in SUBREGs instead of words.
* alias.c (nonlocal_mentioned_p): Use subreg_regno function.
* caller-save.c (mark_set_regs): Change callers of subreg_hard_regno
to pass new argument.
(add_stored_regs): Use subreg_regno_offset function.
* calls.c (expand_call): For non-paradoxical SUBREG take endianess
into account.
(precompute_arguments): Use gen_lowpart_SUBREG.
* combine.c (try_combine): Replace explicit XEXP with SUBREG_REG.
(combine_simplify_rtx): Rework to use SUBREG_BYTE.
(simplify_set): Rework to use SUBREG_BYTE.
(expand_field_assignment): Use SUBREG_BYTE.
(make_extraction): Use SUBREG_BYTE.
(if_then_else_cond): Use SUBREG_BYTE.
(apply_distributive_law): Use SUBREG_BYTE and fixup subreg comments.
(gen_lowpart_for_combine): Compute full byte offset.
* cse.c (mention_regs): Use SUBREG_BYTE.
(remove_invalid_subreg_refs): Rework to use SUBREG_BYTE.
(canon_hash): Use SUBREG_BYTE.
(fold_rtx): Pass SUBREG_BYTE div UNITS_PER_WORD to operand_subword.
(gen_lowpart_if_possible): Formatting.
* dbxout.c (dbxout_symbol_location): Compute SUBREG hard regnos
correctly.
* dwarf2out.c (is_pseudo_reg): Fixup explicit XEXP into SUBREG_REG
(mem_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
(loc_descriptor): Fixup explicit XEXP into SUBREG_REG
* dwarfout.c (is_pseudo_reg): Fixup explicit XEXP into SUBREG_REG
(output_mem_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
(output_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
* emit-rtl.c (gen_rtx_SUBREG): New function, used to verify
certain invariants about SUBREGs the compiler creates.
(gen_lowpart_SUBREG): New function.
(subreg_hard_regno): New function to get the final register number.
(gen_lowpart_common): Use SUBREG_BYTE.
(gen_imagpart): Spacing nits.
(subreg_realpart_p): Use SUBREG_BYTE.
(gen_highpart): Use SUBREG_BYTE.
(subreg_lowpart_p): Always compute endian corrected goal offset,
even at the byte level, then compare against that.
(constant_subword): New function, pulled out all constant cases
from operand_subword and changed second argument name to offset.
(operand_subword): Detect non REG/SUBREG/CONCAT/MEM cases early
and call constant_subword to do the work. Return const0_rtx if
looking for a word outside of OP.
(operand_subword_force): Change second arg name to offset.
* expmed.c (store_bit_field): Use SUBREG_BYTE.
(store_split_bit_field): Use SUBREG_BYTE.
(extract_bit_field): Use SUBREG_BYTE.
(extract_split_bit_field): Use SUBREG_BYTE.
(expand_shift): Use SUBREG_BYTE.
* expr.c (store_expr, expand_expr): Use gen_lowpart_SUBREG.
* final.c (alter_subreg) Use subreg_hard_regno and SUBREG_BYTE.
* flow.c (set_noop_p): Use SUBREG_BYTE.
(mark_set_1): Remove ALTER_HARD_SUBREG. Use subreg_regno_offset instead.
* function.c (fixup_var_refs_1): Fixup explicit XEXP into a SUBREG_REG.
(fixup_memory_subreg): Use SUBREG_BYTE and remove byte endian
correction code.
(optimize_bit_field): Use SUBREG_BYTE.
(purge_addressof_1): Use SUBREG_BYTE.
(purge_single_hard_subreg_set): Use subreg_regno_offset function.
(assign_params): Mark arguments SUBREG_PROMOTED_VAR_P if they are
actually promoted by the caller and PROMOTE_FOR_CALLS_ONLY is true.
* gengenrtl.c (special_rtx): Add SUBREG.
* global.c (mark_reg_store): Use SUBREG_BYTE.
(set_preference): Rework to use subreg_regno_offset and SUBREG_BYTE.
* ifcvt (noce_emit_move_insn): Use SUBREG_BYTE.
* integrate.c (copy_rtx_and_substitute): Use SUBREG_BYTE and make sure
final byte offset is congruent to subreg's mode size.
(subst_constants): Use SUBREG_BYTE.
(mark_stores): Use subreg_regno_offset function.
* jump.c (rtx_renumbered_equal_p, true_regnum): Use subreg_regno_offset
function and SUBREG_BYTE.
* local-alloc.c (combine_regs): Use subreg_regno_offset function.
(reg_is_born): Use subreg_hard_regno.
* recog.c (valid_replace_rtx_1): Use SUBREG_BYTE and remove byte
endian correction code. Don't combine subregs unless resulting
offset aligns with type. Fix subreg constant extraction for DImode.
Simplify SUBREG of VOIDmode CONST_DOUBLE.
(general_operand): Remove dead mode_altering_drug code.
(indirect_operand): Use SUBREG_BYTE.
(constrain_operands): Use subreg_regno_offset function.
* reg-stack.c (get_true_reg): Use subreg_regno_offset function.
* regmove.c (regmove_optimize): Use SUBREG_BYTE.
(optimize_reg_copy_3): Use gen_lowpart_SUBREG.
* regs.h (REG_SIZE): Allow target to override.
(REGMODE_NATURAL_SIZE): New macro which target can override.
* reload.c (reload_inner_reg_of_subreg): subreg_regno should be used
on the entire subreg rtx.
(push_reload): Use SUBREG_BYTE in comments and code.
(find_dummy_reload): Use subreg_regno_offset. Only adjust offsets
for hard registers inside subregs.
(operands_match_p): Use subreg_regno_offset.
(find_reloads): Use SUBREG_BYTE and only advance offset for subregs
containing hard regs.
(find_reload_toplev): Use SUBREG_BYTE. Remove byte endian
corrections when fixing up MEM subregs.
(find_reloads_address_1): Use SUBREG_BYTE, subreg_regno, and
subreg_regno_offset where appropriate.
(find_reloads_subreg_address): Use SUBREG_BYTE. Remove
byte endian corrections when fixing up MEM subregs.
(subst_reloads): When combining two subregs, make sure final
offset is congruent to subreg's mode size.
(find_replacement): Use SUBREG_BYTE and subreg_regno_offset.
(refers_to_regno_for_reload_p): Use subreg_regno.
(reg_overlap_mentioned_for_reload_p): Use subreg_regno_offset.
* reload1.c (eliminate_regs) Use SUBREG_BYTE. Remove byte endian
correction code for memory subreg fixups.
(forget_old_reload_1): Use subreg_regno_offset.
(choose_reload_regs): Use subreg_regno.
(emit_input_reload_insns): Use SUBREG_BYTE.
(reload_combine_note_store): Use subreg_regno_offset.
(move2add_note_store): Use subreg_regno_offset.
* resource.c (update_live_status, mark_referenced_resources): Use
subreg_regno function.
(mark_set_resources): Use subreg_regno function.
* rtl.h (SUBREG_WORD): Rename to SUBREG_BYTE.
(subreg_regno_offset, subreg_regno): Define prototypes.
(subreg_hard_regno, constant_subword, gen_rtx_SUBREG): Newi functions.
(gen_lowpart_SUBREG): Add prototype.
* rtl.texi (subreg): Update to reflect new byte offset representation.
Add mentioning of the effect that BYTES_BIG_ENDIAN has on subregs now.
* rtlanal.c (refers_to_regno_p): Use subreg_regno.
(reg_overlap_mentioned_p): Use subreg_regno.
(replace_regs); Make sure final offset of combined subreg is
congruent to size of subreg's mode.
(subreg_regno_offset): New function.
(subreg_regno): New function.
* sched-vis.c (print_value): Change SUBREG_WORD to SUBREG_BYTE.
* sdbout.c (sdbout_symbol): Compute offset using alter_subreg.
* stmt.c (expand_anon_union_decl): Use gen_lowpart_SUBREG.
* tm.texi (ALTER_HARD_SUBREG): Remove, it is now dead.
(SUBREG_REGNO_OFFSET): Describe SUBREG_REGNO_OFFSET overrides.
* config/a29k/a29k.c (gpc_reg_operand): Use subreg_regno.
(a29k_get_reloaded_address): Use SUBREG_BYTE.
(print_operand): Use SUBREG_BYTE.
* config/alpha/alpha.c (print_operand_address): Use SUBREG_BYTE.
* config/arm/arm.c (arm_reload_in_hi): Use SUBREG_BYTE.
(arm_reload_out_hi): Use SUBREG_BYTE.
* config/d30v/d30v.c (d30v_split_double): Use subreg_regno_offset
instead of SUBREG_WORD.
(d30v_print_operand_memory_reference): Use subreg_regno_offset.
* config/dsp16xx/dsp16xx.md (extendqihi2, zero_extendqihi2): Fix
SUBREG creation to use byte offset.
* config/h8300/h8300.md (Unnamed HImode zero extraction and 16bit
inverted load insns): Fix explicit rtl subregs to use byte
offsets.
* config/i370/i370.md (cmpstrsi, movstrsi, mulsi3, divsi3,
udivsi3, umodsi3): Generate SUBREGs with byte offsets.
* config/i860/i860.c (single_insn_src_p): Use SUBREG_BYTE.
* config/i860/i860.md (mulsi3_big): Fixup explicit SUBREGs in rtl
to use byte offsets.
(unnamed fmlow.dd insn): Fixup SUBREGS to use byte offsets.
* config/i960/i960.md (extendhisi2): Generate SUBREGs with byte
offsets, also make sure it is congruent to SUBREG's mode size.
(extendqisi2, extendqihi2, zero_extendhisi2, zero_extendqisi2,
unnamed ldob insn): Generate SUBREGs with byte offset.
(zero_extendqihi2): SUBREG's are byte offsets.
* config/m68hc11/m68hc11.c (m68hc11_gen_lowpart): Use SUBREG_BYTE.
(m68hc11_gen_highpart): Use SUBREG_BYTE.
* config/m68k/m68k.md (zero_extendhisi2, zero_extendqihi2,
zero-extendqisi2): Generate SUBREGs with byte offset.
(umulsidi3, mulsidi3, subreghi1ashrdi_const32,
subregsi1ashrdi_const32, subreg1lshrdi_const32): Fixup explicit
subregs in rtl to use byte offsets.
* config/m88k/m88k.md (extendsidi2): fixup subregs to use byte offset.
* config/mips/mips.c (mips_move_1word): Use subreg_regno_offset.
(mips_move_2words): Use subreg_regno_offset.
(mips_secondary_reload_class): Use subreg_regno_offset.
* config/mips/mips.md (DImode plus, minus, move, and logical op
splits): Fixup explicit subregs in rtl to use byte offsets.
* config/mn10200/mn10200.c (print_operand): Use subreg_regno function.
* config/mn10300/mn10300.c (print_operand): Use subreg_regno function.
* config/ns32k/ns32k.md (udivmoddisi4): Fix explicit subregs in
rtl to use byte offsets.
* config/pa/pa.c (emit_move_sequence): Use SUBREG_BYTE.
* config/pa/pa.md (floatunssisf2, floatunssidf2, mulsi3): fix explicit
subregs to use byte offsets.
* config/pdp11/pdp11.md (zero_extendhisi2, modhi3, modhi3+1):
Fixup explicit subregs in rtl to use byte offsets.
* config/romp/romp.c (memory_offset_in_range_p): Use SUBREG_BYTE
and remove byte endian correction code.
* config/sh/sh.c (output_movedouble): Use subreg_regno.
(gen_ashift_hi): Use SUBREG_BYTE.
(regs_used): Use subreg_regno_offset.
(machine_dependent_reorg): Use subreg_regno_offset.
* config/sh/sh.h (INDEX_REGISTER_RTX_P): Use SUBREG_BYTE.
* config/sh/sh.md (DImode and DFmode move splits): Use subreg_regno.
(movdf_i4): Subregs are byte offsets now.
* config/sparc/sparc.c (ultra_find_type): Use SUBREG_BYTE.
* config/sparc/sparc.h (ALTER_HARD_SUBREG): Removed.
(REGMODE_NATURAL_SIZE): Override.
(REG_SIZE): For SUBREG check float mode on SUBREG_REG's mode.
* config/sparc/sparc.md (TFmode move splits): Generate SUBREGs
with byte offsets.
(zero_extendhisi2, zero_extendqidi2_insn, extendhisi2,
extendqihi2, sign_extendqihi2_insn, sign_extendqisi2_insn,
extendqidi2): Generate SUBREGs with byte offsets, also make sure
it is congruent to SUBREG's mode size.
(smulsi3_highpart_v8plus): Fix explicit subregs in rtl to use byte
offsets.
(cmp_siqi_trunc, cmp_siqi_trunc_set, cmp_diqi_trunc,
cmp_diqi_trunc_set, lshrdi3_v8plus+1, lshrdi3_v8plus+2,
lshrdi3_v8plus+3, lshrdi3_v8plus+4): Use proper
SUBREG_BYTE offset for non-paradoxical subregs in patterns.
* config/v850/v850.c (print_operand, output_move_double): Use
subreg_regno function.
Co-Authored-By: Andrew MacLeod <amacleod@redhat.com>
Co-Authored-By: David S. Miller <davem@pierdol.cobaltmicro.com>
From-SVN: r41058
2001-04-03 17:06:12 +02:00
|
|
|
|
/* Offset only matters when operand is a REG and
|
|
|
|
|
it is a hard reg. This is because it is passed
|
|
|
|
|
to reg_fits_class_p if it is a REG and all pseudos
|
|
|
|
|
return 0 from that function. */
|
|
|
|
|
if (GET_CODE (SUBREG_REG (operand)) == REG
|
|
|
|
|
&& REGNO (SUBREG_REG (operand)) < FIRST_PSEUDO_REGISTER)
|
|
|
|
|
{
|
|
|
|
|
offset += subreg_regno_offset (REGNO (SUBREG_REG (operand)),
|
|
|
|
|
GET_MODE (SUBREG_REG (operand)),
|
|
|
|
|
SUBREG_BYTE (operand),
|
|
|
|
|
GET_MODE (operand));
|
|
|
|
|
}
|
1992-02-28 11:23:25 +01:00
|
|
|
|
operand = SUBREG_REG (operand);
|
1998-05-06 23:09:07 +02:00
|
|
|
|
/* Force reload if this is a constant or PLUS or if there may
|
1993-08-07 13:42:21 +02:00
|
|
|
|
be a problem accessing OPERAND in the outer mode. */
|
|
|
|
|
if (CONSTANT_P (operand)
|
1993-10-20 00:20:04 +01:00
|
|
|
|
|| GET_CODE (operand) == PLUS
|
1993-12-24 14:33:15 +01:00
|
|
|
|
/* We must force a reload of paradoxical SUBREGs
|
|
|
|
|
of a MEM because the alignment of the inner value
|
1994-08-09 01:25:16 +02:00
|
|
|
|
may not be enough to do the outer reference. On
|
|
|
|
|
big-endian machines, it may also reference outside
|
|
|
|
|
the object.
|
1993-12-24 14:33:15 +01:00
|
|
|
|
|
|
|
|
|
On machines that extend byte operations and we have a
|
1994-08-07 14:53:02 +02:00
|
|
|
|
SUBREG where both the inner and outer modes are no wider
|
|
|
|
|
than a word and the inner mode is narrower, is integral,
|
|
|
|
|
and gets extended when loaded from memory, combine.c has
|
|
|
|
|
made assumptions about the behavior of the machine in such
|
1993-12-24 14:33:15 +01:00
|
|
|
|
register access. If the data is, in fact, in memory we
|
|
|
|
|
must always load using the size assumed to be in the
|
1999-09-01 16:30:35 +02:00
|
|
|
|
register and let the insn do the different-sized
|
1998-03-05 03:42:22 +01:00
|
|
|
|
accesses.
|
|
|
|
|
|
1999-09-01 16:30:35 +02:00
|
|
|
|
This is doubly true if WORD_REGISTER_OPERATIONS. In
|
1998-03-05 03:42:22 +01:00
|
|
|
|
this case eliminate_regs has left non-paradoxical
|
|
|
|
|
subregs for push_reloads to see. Make sure it does
|
|
|
|
|
by forcing the reload.
|
|
|
|
|
|
|
|
|
|
??? When is it right at this stage to have a subreg
|
|
|
|
|
of a mem that is _not_ to be handled specialy? IMO
|
|
|
|
|
those should have been reduced to just a mem. */
|
1993-08-07 13:42:21 +02:00
|
|
|
|
|| ((GET_CODE (operand) == MEM
|
|
|
|
|
|| (GET_CODE (operand)== REG
|
|
|
|
|
&& REGNO (operand) >= FIRST_PSEUDO_REGISTER))
|
1998-03-05 03:42:22 +01:00
|
|
|
|
#ifndef WORD_REGISTER_OPERATIONS
|
1993-12-24 14:33:15 +01:00
|
|
|
|
&& (((GET_MODE_BITSIZE (GET_MODE (operand))
|
|
|
|
|
< BIGGEST_ALIGNMENT)
|
|
|
|
|
&& (GET_MODE_SIZE (operand_mode[i])
|
|
|
|
|
> GET_MODE_SIZE (GET_MODE (operand))))
|
1994-08-09 01:25:16 +02:00
|
|
|
|
|| (GET_CODE (operand) == MEM && BYTES_BIG_ENDIAN)
|
1993-12-24 14:33:15 +01:00
|
|
|
|
#ifdef LOAD_EXTEND_OP
|
|
|
|
|
|| (GET_MODE_SIZE (operand_mode[i]) <= UNITS_PER_WORD
|
|
|
|
|
&& (GET_MODE_SIZE (GET_MODE (operand))
|
|
|
|
|
<= UNITS_PER_WORD)
|
|
|
|
|
&& (GET_MODE_SIZE (operand_mode[i])
|
1994-08-07 14:53:02 +02:00
|
|
|
|
> GET_MODE_SIZE (GET_MODE (operand)))
|
|
|
|
|
&& INTEGRAL_MODE_P (GET_MODE (operand))
|
|
|
|
|
&& LOAD_EXTEND_OP (GET_MODE (operand)) != NIL)
|
1992-09-20 11:50:34 +02:00
|
|
|
|
#endif
|
1998-03-05 03:42:22 +01:00
|
|
|
|
)
|
|
|
|
|
#endif
|
|
|
|
|
)
|
Use byte offsets in SUBREGs instead of words.
2001-04-03 Jakub Jelinek <jakub@redhat.com>
David S. Miller <davem@pierdol.cobaltmicro.com>
Andrew MacLeod <amacleod@redhat.com>
Use byte offsets in SUBREGs instead of words.
* alias.c (nonlocal_mentioned_p): Use subreg_regno function.
* caller-save.c (mark_set_regs): Change callers of subreg_hard_regno
to pass new argument.
(add_stored_regs): Use subreg_regno_offset function.
* calls.c (expand_call): For non-paradoxical SUBREG take endianess
into account.
(precompute_arguments): Use gen_lowpart_SUBREG.
* combine.c (try_combine): Replace explicit XEXP with SUBREG_REG.
(combine_simplify_rtx): Rework to use SUBREG_BYTE.
(simplify_set): Rework to use SUBREG_BYTE.
(expand_field_assignment): Use SUBREG_BYTE.
(make_extraction): Use SUBREG_BYTE.
(if_then_else_cond): Use SUBREG_BYTE.
(apply_distributive_law): Use SUBREG_BYTE and fixup subreg comments.
(gen_lowpart_for_combine): Compute full byte offset.
* cse.c (mention_regs): Use SUBREG_BYTE.
(remove_invalid_subreg_refs): Rework to use SUBREG_BYTE.
(canon_hash): Use SUBREG_BYTE.
(fold_rtx): Pass SUBREG_BYTE div UNITS_PER_WORD to operand_subword.
(gen_lowpart_if_possible): Formatting.
* dbxout.c (dbxout_symbol_location): Compute SUBREG hard regnos
correctly.
* dwarf2out.c (is_pseudo_reg): Fixup explicit XEXP into SUBREG_REG
(mem_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
(loc_descriptor): Fixup explicit XEXP into SUBREG_REG
* dwarfout.c (is_pseudo_reg): Fixup explicit XEXP into SUBREG_REG
(output_mem_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
(output_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
* emit-rtl.c (gen_rtx_SUBREG): New function, used to verify
certain invariants about SUBREGs the compiler creates.
(gen_lowpart_SUBREG): New function.
(subreg_hard_regno): New function to get the final register number.
(gen_lowpart_common): Use SUBREG_BYTE.
(gen_imagpart): Spacing nits.
(subreg_realpart_p): Use SUBREG_BYTE.
(gen_highpart): Use SUBREG_BYTE.
(subreg_lowpart_p): Always compute endian corrected goal offset,
even at the byte level, then compare against that.
(constant_subword): New function, pulled out all constant cases
from operand_subword and changed second argument name to offset.
(operand_subword): Detect non REG/SUBREG/CONCAT/MEM cases early
and call constant_subword to do the work. Return const0_rtx if
looking for a word outside of OP.
(operand_subword_force): Change second arg name to offset.
* expmed.c (store_bit_field): Use SUBREG_BYTE.
(store_split_bit_field): Use SUBREG_BYTE.
(extract_bit_field): Use SUBREG_BYTE.
(extract_split_bit_field): Use SUBREG_BYTE.
(expand_shift): Use SUBREG_BYTE.
* expr.c (store_expr, expand_expr): Use gen_lowpart_SUBREG.
* final.c (alter_subreg) Use subreg_hard_regno and SUBREG_BYTE.
* flow.c (set_noop_p): Use SUBREG_BYTE.
(mark_set_1): Remove ALTER_HARD_SUBREG. Use subreg_regno_offset instead.
* function.c (fixup_var_refs_1): Fixup explicit XEXP into a SUBREG_REG.
(fixup_memory_subreg): Use SUBREG_BYTE and remove byte endian
correction code.
(optimize_bit_field): Use SUBREG_BYTE.
(purge_addressof_1): Use SUBREG_BYTE.
(purge_single_hard_subreg_set): Use subreg_regno_offset function.
(assign_params): Mark arguments SUBREG_PROMOTED_VAR_P if they are
actually promoted by the caller and PROMOTE_FOR_CALLS_ONLY is true.
* gengenrtl.c (special_rtx): Add SUBREG.
* global.c (mark_reg_store): Use SUBREG_BYTE.
(set_preference): Rework to use subreg_regno_offset and SUBREG_BYTE.
* ifcvt (noce_emit_move_insn): Use SUBREG_BYTE.
* integrate.c (copy_rtx_and_substitute): Use SUBREG_BYTE and make sure
final byte offset is congruent to subreg's mode size.
(subst_constants): Use SUBREG_BYTE.
(mark_stores): Use subreg_regno_offset function.
* jump.c (rtx_renumbered_equal_p, true_regnum): Use subreg_regno_offset
function and SUBREG_BYTE.
* local-alloc.c (combine_regs): Use subreg_regno_offset function.
(reg_is_born): Use subreg_hard_regno.
* recog.c (valid_replace_rtx_1): Use SUBREG_BYTE and remove byte
endian correction code. Don't combine subregs unless resulting
offset aligns with type. Fix subreg constant extraction for DImode.
Simplify SUBREG of VOIDmode CONST_DOUBLE.
(general_operand): Remove dead mode_altering_drug code.
(indirect_operand): Use SUBREG_BYTE.
(constrain_operands): Use subreg_regno_offset function.
* reg-stack.c (get_true_reg): Use subreg_regno_offset function.
* regmove.c (regmove_optimize): Use SUBREG_BYTE.
(optimize_reg_copy_3): Use gen_lowpart_SUBREG.
* regs.h (REG_SIZE): Allow target to override.
(REGMODE_NATURAL_SIZE): New macro which target can override.
* reload.c (reload_inner_reg_of_subreg): subreg_regno should be used
on the entire subreg rtx.
(push_reload): Use SUBREG_BYTE in comments and code.
(find_dummy_reload): Use subreg_regno_offset. Only adjust offsets
for hard registers inside subregs.
(operands_match_p): Use subreg_regno_offset.
(find_reloads): Use SUBREG_BYTE and only advance offset for subregs
containing hard regs.
(find_reload_toplev): Use SUBREG_BYTE. Remove byte endian
corrections when fixing up MEM subregs.
(find_reloads_address_1): Use SUBREG_BYTE, subreg_regno, and
subreg_regno_offset where appropriate.
(find_reloads_subreg_address): Use SUBREG_BYTE. Remove
byte endian corrections when fixing up MEM subregs.
(subst_reloads): When combining two subregs, make sure final
offset is congruent to subreg's mode size.
(find_replacement): Use SUBREG_BYTE and subreg_regno_offset.
(refers_to_regno_for_reload_p): Use subreg_regno.
(reg_overlap_mentioned_for_reload_p): Use subreg_regno_offset.
* reload1.c (eliminate_regs) Use SUBREG_BYTE. Remove byte endian
correction code for memory subreg fixups.
(forget_old_reload_1): Use subreg_regno_offset.
(choose_reload_regs): Use subreg_regno.
(emit_input_reload_insns): Use SUBREG_BYTE.
(reload_combine_note_store): Use subreg_regno_offset.
(move2add_note_store): Use subreg_regno_offset.
* resource.c (update_live_status, mark_referenced_resources): Use
subreg_regno function.
(mark_set_resources): Use subreg_regno function.
* rtl.h (SUBREG_WORD): Rename to SUBREG_BYTE.
(subreg_regno_offset, subreg_regno): Define prototypes.
(subreg_hard_regno, constant_subword, gen_rtx_SUBREG): Newi functions.
(gen_lowpart_SUBREG): Add prototype.
* rtl.texi (subreg): Update to reflect new byte offset representation.
Add mentioning of the effect that BYTES_BIG_ENDIAN has on subregs now.
* rtlanal.c (refers_to_regno_p): Use subreg_regno.
(reg_overlap_mentioned_p): Use subreg_regno.
(replace_regs); Make sure final offset of combined subreg is
congruent to size of subreg's mode.
(subreg_regno_offset): New function.
(subreg_regno): New function.
* sched-vis.c (print_value): Change SUBREG_WORD to SUBREG_BYTE.
* sdbout.c (sdbout_symbol): Compute offset using alter_subreg.
* stmt.c (expand_anon_union_decl): Use gen_lowpart_SUBREG.
* tm.texi (ALTER_HARD_SUBREG): Remove, it is now dead.
(SUBREG_REGNO_OFFSET): Describe SUBREG_REGNO_OFFSET overrides.
* config/a29k/a29k.c (gpc_reg_operand): Use subreg_regno.
(a29k_get_reloaded_address): Use SUBREG_BYTE.
(print_operand): Use SUBREG_BYTE.
* config/alpha/alpha.c (print_operand_address): Use SUBREG_BYTE.
* config/arm/arm.c (arm_reload_in_hi): Use SUBREG_BYTE.
(arm_reload_out_hi): Use SUBREG_BYTE.
* config/d30v/d30v.c (d30v_split_double): Use subreg_regno_offset
instead of SUBREG_WORD.
(d30v_print_operand_memory_reference): Use subreg_regno_offset.
* config/dsp16xx/dsp16xx.md (extendqihi2, zero_extendqihi2): Fix
SUBREG creation to use byte offset.
* config/h8300/h8300.md (Unnamed HImode zero extraction and 16bit
inverted load insns): Fix explicit rtl subregs to use byte
offsets.
* config/i370/i370.md (cmpstrsi, movstrsi, mulsi3, divsi3,
udivsi3, umodsi3): Generate SUBREGs with byte offsets.
* config/i860/i860.c (single_insn_src_p): Use SUBREG_BYTE.
* config/i860/i860.md (mulsi3_big): Fixup explicit SUBREGs in rtl
to use byte offsets.
(unnamed fmlow.dd insn): Fixup SUBREGS to use byte offsets.
* config/i960/i960.md (extendhisi2): Generate SUBREGs with byte
offsets, also make sure it is congruent to SUBREG's mode size.
(extendqisi2, extendqihi2, zero_extendhisi2, zero_extendqisi2,
unnamed ldob insn): Generate SUBREGs with byte offset.
(zero_extendqihi2): SUBREG's are byte offsets.
* config/m68hc11/m68hc11.c (m68hc11_gen_lowpart): Use SUBREG_BYTE.
(m68hc11_gen_highpart): Use SUBREG_BYTE.
* config/m68k/m68k.md (zero_extendhisi2, zero_extendqihi2,
zero-extendqisi2): Generate SUBREGs with byte offset.
(umulsidi3, mulsidi3, subreghi1ashrdi_const32,
subregsi1ashrdi_const32, subreg1lshrdi_const32): Fixup explicit
subregs in rtl to use byte offsets.
* config/m88k/m88k.md (extendsidi2): fixup subregs to use byte offset.
* config/mips/mips.c (mips_move_1word): Use subreg_regno_offset.
(mips_move_2words): Use subreg_regno_offset.
(mips_secondary_reload_class): Use subreg_regno_offset.
* config/mips/mips.md (DImode plus, minus, move, and logical op
splits): Fixup explicit subregs in rtl to use byte offsets.
* config/mn10200/mn10200.c (print_operand): Use subreg_regno function.
* config/mn10300/mn10300.c (print_operand): Use subreg_regno function.
* config/ns32k/ns32k.md (udivmoddisi4): Fix explicit subregs in
rtl to use byte offsets.
* config/pa/pa.c (emit_move_sequence): Use SUBREG_BYTE.
* config/pa/pa.md (floatunssisf2, floatunssidf2, mulsi3): fix explicit
subregs to use byte offsets.
* config/pdp11/pdp11.md (zero_extendhisi2, modhi3, modhi3+1):
Fixup explicit subregs in rtl to use byte offsets.
* config/romp/romp.c (memory_offset_in_range_p): Use SUBREG_BYTE
and remove byte endian correction code.
* config/sh/sh.c (output_movedouble): Use subreg_regno.
(gen_ashift_hi): Use SUBREG_BYTE.
(regs_used): Use subreg_regno_offset.
(machine_dependent_reorg): Use subreg_regno_offset.
* config/sh/sh.h (INDEX_REGISTER_RTX_P): Use SUBREG_BYTE.
* config/sh/sh.md (DImode and DFmode move splits): Use subreg_regno.
(movdf_i4): Subregs are byte offsets now.
* config/sparc/sparc.c (ultra_find_type): Use SUBREG_BYTE.
* config/sparc/sparc.h (ALTER_HARD_SUBREG): Removed.
(REGMODE_NATURAL_SIZE): Override.
(REG_SIZE): For SUBREG check float mode on SUBREG_REG's mode.
* config/sparc/sparc.md (TFmode move splits): Generate SUBREGs
with byte offsets.
(zero_extendhisi2, zero_extendqidi2_insn, extendhisi2,
extendqihi2, sign_extendqihi2_insn, sign_extendqisi2_insn,
extendqidi2): Generate SUBREGs with byte offsets, also make sure
it is congruent to SUBREG's mode size.
(smulsi3_highpart_v8plus): Fix explicit subregs in rtl to use byte
offsets.
(cmp_siqi_trunc, cmp_siqi_trunc_set, cmp_diqi_trunc,
cmp_diqi_trunc_set, lshrdi3_v8plus+1, lshrdi3_v8plus+2,
lshrdi3_v8plus+3, lshrdi3_v8plus+4): Use proper
SUBREG_BYTE offset for non-paradoxical subregs in patterns.
* config/v850/v850.c (print_operand, output_move_double): Use
subreg_regno function.
Co-Authored-By: Andrew MacLeod <amacleod@redhat.com>
Co-Authored-By: David S. Miller <davem@pierdol.cobaltmicro.com>
From-SVN: r41058
2001-04-03 17:06:12 +02:00
|
|
|
|
/* This following hunk of code should no longer be
|
|
|
|
|
needed at all with SUBREG_BYTE. If you need this
|
|
|
|
|
code back, please explain to me why so I can
|
|
|
|
|
fix the real problem. -DaveM */
|
|
|
|
|
#if 0
|
1992-02-28 11:23:25 +01:00
|
|
|
|
/* Subreg of a hard reg which can't handle the subreg's mode
|
|
|
|
|
or which would handle that mode in the wrong number of
|
|
|
|
|
registers for subregging to work. */
|
1993-08-07 13:42:21 +02:00
|
|
|
|
|| (GET_CODE (operand) == REG
|
|
|
|
|
&& REGNO (operand) < FIRST_PSEUDO_REGISTER
|
1993-08-06 01:17:30 +02:00
|
|
|
|
&& ((GET_MODE_SIZE (operand_mode[i]) <= UNITS_PER_WORD
|
|
|
|
|
&& (GET_MODE_SIZE (GET_MODE (operand))
|
|
|
|
|
> UNITS_PER_WORD)
|
|
|
|
|
&& ((GET_MODE_SIZE (GET_MODE (operand))
|
|
|
|
|
/ UNITS_PER_WORD)
|
|
|
|
|
!= HARD_REGNO_NREGS (REGNO (operand),
|
|
|
|
|
GET_MODE (operand))))
|
|
|
|
|
|| ! HARD_REGNO_MODE_OK (REGNO (operand) + offset,
|
Use byte offsets in SUBREGs instead of words.
2001-04-03 Jakub Jelinek <jakub@redhat.com>
David S. Miller <davem@pierdol.cobaltmicro.com>
Andrew MacLeod <amacleod@redhat.com>
Use byte offsets in SUBREGs instead of words.
* alias.c (nonlocal_mentioned_p): Use subreg_regno function.
* caller-save.c (mark_set_regs): Change callers of subreg_hard_regno
to pass new argument.
(add_stored_regs): Use subreg_regno_offset function.
* calls.c (expand_call): For non-paradoxical SUBREG take endianess
into account.
(precompute_arguments): Use gen_lowpart_SUBREG.
* combine.c (try_combine): Replace explicit XEXP with SUBREG_REG.
(combine_simplify_rtx): Rework to use SUBREG_BYTE.
(simplify_set): Rework to use SUBREG_BYTE.
(expand_field_assignment): Use SUBREG_BYTE.
(make_extraction): Use SUBREG_BYTE.
(if_then_else_cond): Use SUBREG_BYTE.
(apply_distributive_law): Use SUBREG_BYTE and fixup subreg comments.
(gen_lowpart_for_combine): Compute full byte offset.
* cse.c (mention_regs): Use SUBREG_BYTE.
(remove_invalid_subreg_refs): Rework to use SUBREG_BYTE.
(canon_hash): Use SUBREG_BYTE.
(fold_rtx): Pass SUBREG_BYTE div UNITS_PER_WORD to operand_subword.
(gen_lowpart_if_possible): Formatting.
* dbxout.c (dbxout_symbol_location): Compute SUBREG hard regnos
correctly.
* dwarf2out.c (is_pseudo_reg): Fixup explicit XEXP into SUBREG_REG
(mem_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
(loc_descriptor): Fixup explicit XEXP into SUBREG_REG
* dwarfout.c (is_pseudo_reg): Fixup explicit XEXP into SUBREG_REG
(output_mem_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
(output_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
* emit-rtl.c (gen_rtx_SUBREG): New function, used to verify
certain invariants about SUBREGs the compiler creates.
(gen_lowpart_SUBREG): New function.
(subreg_hard_regno): New function to get the final register number.
(gen_lowpart_common): Use SUBREG_BYTE.
(gen_imagpart): Spacing nits.
(subreg_realpart_p): Use SUBREG_BYTE.
(gen_highpart): Use SUBREG_BYTE.
(subreg_lowpart_p): Always compute endian corrected goal offset,
even at the byte level, then compare against that.
(constant_subword): New function, pulled out all constant cases
from operand_subword and changed second argument name to offset.
(operand_subword): Detect non REG/SUBREG/CONCAT/MEM cases early
and call constant_subword to do the work. Return const0_rtx if
looking for a word outside of OP.
(operand_subword_force): Change second arg name to offset.
* expmed.c (store_bit_field): Use SUBREG_BYTE.
(store_split_bit_field): Use SUBREG_BYTE.
(extract_bit_field): Use SUBREG_BYTE.
(extract_split_bit_field): Use SUBREG_BYTE.
(expand_shift): Use SUBREG_BYTE.
* expr.c (store_expr, expand_expr): Use gen_lowpart_SUBREG.
* final.c (alter_subreg) Use subreg_hard_regno and SUBREG_BYTE.
* flow.c (set_noop_p): Use SUBREG_BYTE.
(mark_set_1): Remove ALTER_HARD_SUBREG. Use subreg_regno_offset instead.
* function.c (fixup_var_refs_1): Fixup explicit XEXP into a SUBREG_REG.
(fixup_memory_subreg): Use SUBREG_BYTE and remove byte endian
correction code.
(optimize_bit_field): Use SUBREG_BYTE.
(purge_addressof_1): Use SUBREG_BYTE.
(purge_single_hard_subreg_set): Use subreg_regno_offset function.
(assign_params): Mark arguments SUBREG_PROMOTED_VAR_P if they are
actually promoted by the caller and PROMOTE_FOR_CALLS_ONLY is true.
* gengenrtl.c (special_rtx): Add SUBREG.
* global.c (mark_reg_store): Use SUBREG_BYTE.
(set_preference): Rework to use subreg_regno_offset and SUBREG_BYTE.
* ifcvt (noce_emit_move_insn): Use SUBREG_BYTE.
* integrate.c (copy_rtx_and_substitute): Use SUBREG_BYTE and make sure
final byte offset is congruent to subreg's mode size.
(subst_constants): Use SUBREG_BYTE.
(mark_stores): Use subreg_regno_offset function.
* jump.c (rtx_renumbered_equal_p, true_regnum): Use subreg_regno_offset
function and SUBREG_BYTE.
* local-alloc.c (combine_regs): Use subreg_regno_offset function.
(reg_is_born): Use subreg_hard_regno.
* recog.c (valid_replace_rtx_1): Use SUBREG_BYTE and remove byte
endian correction code. Don't combine subregs unless resulting
offset aligns with type. Fix subreg constant extraction for DImode.
Simplify SUBREG of VOIDmode CONST_DOUBLE.
(general_operand): Remove dead mode_altering_drug code.
(indirect_operand): Use SUBREG_BYTE.
(constrain_operands): Use subreg_regno_offset function.
* reg-stack.c (get_true_reg): Use subreg_regno_offset function.
* regmove.c (regmove_optimize): Use SUBREG_BYTE.
(optimize_reg_copy_3): Use gen_lowpart_SUBREG.
* regs.h (REG_SIZE): Allow target to override.
(REGMODE_NATURAL_SIZE): New macro which target can override.
* reload.c (reload_inner_reg_of_subreg): subreg_regno should be used
on the entire subreg rtx.
(push_reload): Use SUBREG_BYTE in comments and code.
(find_dummy_reload): Use subreg_regno_offset. Only adjust offsets
for hard registers inside subregs.
(operands_match_p): Use subreg_regno_offset.
(find_reloads): Use SUBREG_BYTE and only advance offset for subregs
containing hard regs.
(find_reload_toplev): Use SUBREG_BYTE. Remove byte endian
corrections when fixing up MEM subregs.
(find_reloads_address_1): Use SUBREG_BYTE, subreg_regno, and
subreg_regno_offset where appropriate.
(find_reloads_subreg_address): Use SUBREG_BYTE. Remove
byte endian corrections when fixing up MEM subregs.
(subst_reloads): When combining two subregs, make sure final
offset is congruent to subreg's mode size.
(find_replacement): Use SUBREG_BYTE and subreg_regno_offset.
(refers_to_regno_for_reload_p): Use subreg_regno.
(reg_overlap_mentioned_for_reload_p): Use subreg_regno_offset.
* reload1.c (eliminate_regs) Use SUBREG_BYTE. Remove byte endian
correction code for memory subreg fixups.
(forget_old_reload_1): Use subreg_regno_offset.
(choose_reload_regs): Use subreg_regno.
(emit_input_reload_insns): Use SUBREG_BYTE.
(reload_combine_note_store): Use subreg_regno_offset.
(move2add_note_store): Use subreg_regno_offset.
* resource.c (update_live_status, mark_referenced_resources): Use
subreg_regno function.
(mark_set_resources): Use subreg_regno function.
* rtl.h (SUBREG_WORD): Rename to SUBREG_BYTE.
(subreg_regno_offset, subreg_regno): Define prototypes.
(subreg_hard_regno, constant_subword, gen_rtx_SUBREG): Newi functions.
(gen_lowpart_SUBREG): Add prototype.
* rtl.texi (subreg): Update to reflect new byte offset representation.
Add mentioning of the effect that BYTES_BIG_ENDIAN has on subregs now.
* rtlanal.c (refers_to_regno_p): Use subreg_regno.
(reg_overlap_mentioned_p): Use subreg_regno.
(replace_regs); Make sure final offset of combined subreg is
congruent to size of subreg's mode.
(subreg_regno_offset): New function.
(subreg_regno): New function.
* sched-vis.c (print_value): Change SUBREG_WORD to SUBREG_BYTE.
* sdbout.c (sdbout_symbol): Compute offset using alter_subreg.
* stmt.c (expand_anon_union_decl): Use gen_lowpart_SUBREG.
* tm.texi (ALTER_HARD_SUBREG): Remove, it is now dead.
(SUBREG_REGNO_OFFSET): Describe SUBREG_REGNO_OFFSET overrides.
* config/a29k/a29k.c (gpc_reg_operand): Use subreg_regno.
(a29k_get_reloaded_address): Use SUBREG_BYTE.
(print_operand): Use SUBREG_BYTE.
* config/alpha/alpha.c (print_operand_address): Use SUBREG_BYTE.
* config/arm/arm.c (arm_reload_in_hi): Use SUBREG_BYTE.
(arm_reload_out_hi): Use SUBREG_BYTE.
* config/d30v/d30v.c (d30v_split_double): Use subreg_regno_offset
instead of SUBREG_WORD.
(d30v_print_operand_memory_reference): Use subreg_regno_offset.
* config/dsp16xx/dsp16xx.md (extendqihi2, zero_extendqihi2): Fix
SUBREG creation to use byte offset.
* config/h8300/h8300.md (Unnamed HImode zero extraction and 16bit
inverted load insns): Fix explicit rtl subregs to use byte
offsets.
* config/i370/i370.md (cmpstrsi, movstrsi, mulsi3, divsi3,
udivsi3, umodsi3): Generate SUBREGs with byte offsets.
* config/i860/i860.c (single_insn_src_p): Use SUBREG_BYTE.
* config/i860/i860.md (mulsi3_big): Fixup explicit SUBREGs in rtl
to use byte offsets.
(unnamed fmlow.dd insn): Fixup SUBREGS to use byte offsets.
* config/i960/i960.md (extendhisi2): Generate SUBREGs with byte
offsets, also make sure it is congruent to SUBREG's mode size.
(extendqisi2, extendqihi2, zero_extendhisi2, zero_extendqisi2,
unnamed ldob insn): Generate SUBREGs with byte offset.
(zero_extendqihi2): SUBREG's are byte offsets.
* config/m68hc11/m68hc11.c (m68hc11_gen_lowpart): Use SUBREG_BYTE.
(m68hc11_gen_highpart): Use SUBREG_BYTE.
* config/m68k/m68k.md (zero_extendhisi2, zero_extendqihi2,
zero-extendqisi2): Generate SUBREGs with byte offset.
(umulsidi3, mulsidi3, subreghi1ashrdi_const32,
subregsi1ashrdi_const32, subreg1lshrdi_const32): Fixup explicit
subregs in rtl to use byte offsets.
* config/m88k/m88k.md (extendsidi2): fixup subregs to use byte offset.
* config/mips/mips.c (mips_move_1word): Use subreg_regno_offset.
(mips_move_2words): Use subreg_regno_offset.
(mips_secondary_reload_class): Use subreg_regno_offset.
* config/mips/mips.md (DImode plus, minus, move, and logical op
splits): Fixup explicit subregs in rtl to use byte offsets.
* config/mn10200/mn10200.c (print_operand): Use subreg_regno function.
* config/mn10300/mn10300.c (print_operand): Use subreg_regno function.
* config/ns32k/ns32k.md (udivmoddisi4): Fix explicit subregs in
rtl to use byte offsets.
* config/pa/pa.c (emit_move_sequence): Use SUBREG_BYTE.
* config/pa/pa.md (floatunssisf2, floatunssidf2, mulsi3): fix explicit
subregs to use byte offsets.
* config/pdp11/pdp11.md (zero_extendhisi2, modhi3, modhi3+1):
Fixup explicit subregs in rtl to use byte offsets.
* config/romp/romp.c (memory_offset_in_range_p): Use SUBREG_BYTE
and remove byte endian correction code.
* config/sh/sh.c (output_movedouble): Use subreg_regno.
(gen_ashift_hi): Use SUBREG_BYTE.
(regs_used): Use subreg_regno_offset.
(machine_dependent_reorg): Use subreg_regno_offset.
* config/sh/sh.h (INDEX_REGISTER_RTX_P): Use SUBREG_BYTE.
* config/sh/sh.md (DImode and DFmode move splits): Use subreg_regno.
(movdf_i4): Subregs are byte offsets now.
* config/sparc/sparc.c (ultra_find_type): Use SUBREG_BYTE.
* config/sparc/sparc.h (ALTER_HARD_SUBREG): Removed.
(REGMODE_NATURAL_SIZE): Override.
(REG_SIZE): For SUBREG check float mode on SUBREG_REG's mode.
* config/sparc/sparc.md (TFmode move splits): Generate SUBREGs
with byte offsets.
(zero_extendhisi2, zero_extendqidi2_insn, extendhisi2,
extendqihi2, sign_extendqihi2_insn, sign_extendqisi2_insn,
extendqidi2): Generate SUBREGs with byte offsets, also make sure
it is congruent to SUBREG's mode size.
(smulsi3_highpart_v8plus): Fix explicit subregs in rtl to use byte
offsets.
(cmp_siqi_trunc, cmp_siqi_trunc_set, cmp_diqi_trunc,
cmp_diqi_trunc_set, lshrdi3_v8plus+1, lshrdi3_v8plus+2,
lshrdi3_v8plus+3, lshrdi3_v8plus+4): Use proper
SUBREG_BYTE offset for non-paradoxical subregs in patterns.
* config/v850/v850.c (print_operand, output_move_double): Use
subreg_regno function.
Co-Authored-By: Andrew MacLeod <amacleod@redhat.com>
Co-Authored-By: David S. Miller <davem@pierdol.cobaltmicro.com>
From-SVN: r41058
2001-04-03 17:06:12 +02:00
|
|
|
|
operand_mode[i])))
|
|
|
|
|
#endif
|
|
|
|
|
)
|
1992-02-28 11:23:25 +01:00
|
|
|
|
force_reload = 1;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
this_alternative[i] = (int) NO_REGS;
|
|
|
|
|
this_alternative_win[i] = 0;
|
2000-10-28 21:33:09 +02:00
|
|
|
|
this_alternative_match_win[i] = 0;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
this_alternative_offmemok[i] = 0;
|
|
|
|
|
this_alternative_earlyclobber[i] = 0;
|
|
|
|
|
this_alternative_matches[i] = -1;
|
|
|
|
|
|
|
|
|
|
/* An empty constraint or empty alternative
|
|
|
|
|
allows anything which matched the pattern. */
|
|
|
|
|
if (*p == 0 || *p == ',')
|
|
|
|
|
win = 1, badop = 0;
|
|
|
|
|
|
|
|
|
|
/* Scan this alternative's specs for this operand;
|
|
|
|
|
set WIN if the operand fits any letter in this alternative.
|
|
|
|
|
Otherwise, clear BADOP if this operand could
|
|
|
|
|
fit some letter after reloads,
|
|
|
|
|
or set WINREG if this operand could fit after reloads
|
|
|
|
|
provided the constraint allows some registers. */
|
|
|
|
|
|
|
|
|
|
while (*p && (c = *p++) != ',')
|
|
|
|
|
switch (c)
|
|
|
|
|
{
|
1999-09-07 07:49:18 +02:00
|
|
|
|
case '=': case '+': case '*':
|
1992-02-28 11:23:25 +01:00
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case '%':
|
1992-08-14 20:39:00 +02:00
|
|
|
|
/* The last operand should not be marked commutative. */
|
|
|
|
|
if (i != noperands - 1)
|
|
|
|
|
commutative = i;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case '?':
|
1998-03-26 11:44:22 +01:00
|
|
|
|
reject += 6;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case '!':
|
1998-03-26 11:44:22 +01:00
|
|
|
|
reject = 600;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case '#':
|
|
|
|
|
/* Ignore rest of this alternative as far as
|
|
|
|
|
reloading is concerned. */
|
2000-08-29 23:14:57 +02:00
|
|
|
|
while (*p && *p != ',')
|
|
|
|
|
p++;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
break;
|
|
|
|
|
|
1999-09-07 07:49:18 +02:00
|
|
|
|
case '0': case '1': case '2': case '3': case '4':
|
|
|
|
|
case '5': case '6': case '7': case '8': case '9':
|
2001-10-11 09:07:30 +02:00
|
|
|
|
c = strtoul (p - 1, &p, 10);
|
1999-09-07 07:49:18 +02:00
|
|
|
|
|
1992-02-28 11:23:25 +01:00
|
|
|
|
this_alternative_matches[i] = c;
|
|
|
|
|
/* We are supposed to match a previous operand.
|
|
|
|
|
If we do, we win if that one did.
|
|
|
|
|
If we do not, count both of the operands as losers.
|
|
|
|
|
(This is too conservative, since most of the time
|
|
|
|
|
only a single reload insn will be needed to make
|
|
|
|
|
the two operands win. As a result, this alternative
|
|
|
|
|
may be rejected when it is actually desirable.) */
|
|
|
|
|
if ((swapped && (c != commutative || i != commutative + 1))
|
|
|
|
|
/* If we are matching as if two operands were swapped,
|
|
|
|
|
also pretend that operands_match had been computed
|
|
|
|
|
with swapped.
|
|
|
|
|
But if I is the second of those and C is the first,
|
|
|
|
|
don't exchange them, because operands_match is valid
|
|
|
|
|
only on one side of its diagonal. */
|
|
|
|
|
? (operands_match
|
1999-09-01 16:30:35 +02:00
|
|
|
|
[(c == commutative || c == commutative + 1)
|
2000-08-29 23:14:57 +02:00
|
|
|
|
? 2 * commutative + 1 - c : c]
|
1999-09-01 16:30:35 +02:00
|
|
|
|
[(i == commutative || i == commutative + 1)
|
2000-08-29 23:14:57 +02:00
|
|
|
|
? 2 * commutative + 1 - i : i])
|
1992-02-28 11:23:25 +01:00
|
|
|
|
: operands_match[c][i])
|
1997-08-27 02:49:59 +02:00
|
|
|
|
{
|
|
|
|
|
/* If we are matching a non-offsettable address where an
|
|
|
|
|
offsettable address was expected, then we must reject
|
|
|
|
|
this combination, because we can't reload it. */
|
|
|
|
|
if (this_alternative_offmemok[c]
|
1999-09-12 03:51:28 +02:00
|
|
|
|
&& GET_CODE (recog_data.operand[c]) == MEM
|
1997-08-27 02:49:59 +02:00
|
|
|
|
&& this_alternative[c] == (int) NO_REGS
|
|
|
|
|
&& ! this_alternative_win[c])
|
|
|
|
|
bad = 1;
|
|
|
|
|
|
2000-10-28 21:33:09 +02:00
|
|
|
|
did_match = this_alternative_win[c];
|
1997-08-27 02:49:59 +02:00
|
|
|
|
}
|
1992-02-28 11:23:25 +01:00
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
/* Operands don't match. */
|
|
|
|
|
rtx value;
|
|
|
|
|
/* Retroactively mark the operand we had to match
|
|
|
|
|
as a loser, if it wasn't already. */
|
|
|
|
|
if (this_alternative_win[c])
|
|
|
|
|
losers++;
|
|
|
|
|
this_alternative_win[c] = 0;
|
|
|
|
|
if (this_alternative[c] == (int) NO_REGS)
|
|
|
|
|
bad = 1;
|
|
|
|
|
/* But count the pair only once in the total badness of
|
|
|
|
|
this alternative, if the pair can be a dummy reload. */
|
|
|
|
|
value
|
1999-09-12 03:51:28 +02:00
|
|
|
|
= find_dummy_reload (recog_data.operand[i],
|
|
|
|
|
recog_data.operand[c],
|
|
|
|
|
recog_data.operand_loc[i],
|
|
|
|
|
recog_data.operand_loc[c],
|
1993-09-15 15:40:11 +02:00
|
|
|
|
operand_mode[i], operand_mode[c],
|
1997-03-25 20:27:59 +01:00
|
|
|
|
this_alternative[c], -1,
|
|
|
|
|
this_alternative_earlyclobber[c]);
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
|
|
|
|
if (value != 0)
|
|
|
|
|
losers--;
|
|
|
|
|
}
|
|
|
|
|
/* This can be fixed with reloads if the operand
|
|
|
|
|
we are supposed to match can be fixed with reloads. */
|
|
|
|
|
badop = 0;
|
|
|
|
|
this_alternative[i] = this_alternative[c];
|
1993-09-19 18:48:55 +02:00
|
|
|
|
|
|
|
|
|
/* If we have to reload this operand and some previous
|
|
|
|
|
operand also had to match the same thing as this
|
|
|
|
|
operand, we don't know how to do that. So reject this
|
|
|
|
|
alternative. */
|
2000-10-28 21:33:09 +02:00
|
|
|
|
if (! did_match || force_reload)
|
1993-09-19 18:48:55 +02:00
|
|
|
|
for (j = 0; j < i; j++)
|
|
|
|
|
if (this_alternative_matches[j]
|
|
|
|
|
== this_alternative_matches[i])
|
|
|
|
|
badop = 1;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case 'p':
|
|
|
|
|
/* All necessary reloads for an address_operand
|
|
|
|
|
were handled in find_reloads_address. */
|
2001-12-17 17:46:11 +01:00
|
|
|
|
this_alternative[i] = (int) MODE_BASE_REG_CLASS (VOIDmode);
|
1992-02-28 11:23:25 +01:00
|
|
|
|
win = 1;
|
2002-05-01 19:33:55 +02:00
|
|
|
|
badop = 0;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case 'm':
|
|
|
|
|
if (force_reload)
|
|
|
|
|
break;
|
|
|
|
|
if (GET_CODE (operand) == MEM
|
|
|
|
|
|| (GET_CODE (operand) == REG
|
|
|
|
|
&& REGNO (operand) >= FIRST_PSEUDO_REGISTER
|
|
|
|
|
&& reg_renumber[REGNO (operand)] < 0))
|
|
|
|
|
win = 1;
|
1997-11-05 02:08:08 +01:00
|
|
|
|
if (CONSTANT_P (operand)
|
|
|
|
|
/* force_const_mem does not accept HIGH. */
|
|
|
|
|
&& GET_CODE (operand) != HIGH)
|
1992-02-28 11:23:25 +01:00
|
|
|
|
badop = 0;
|
1994-05-17 21:51:48 +02:00
|
|
|
|
constmemok = 1;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case '<':
|
|
|
|
|
if (GET_CODE (operand) == MEM
|
|
|
|
|
&& ! address_reloaded[i]
|
|
|
|
|
&& (GET_CODE (XEXP (operand, 0)) == PRE_DEC
|
|
|
|
|
|| GET_CODE (XEXP (operand, 0)) == POST_DEC))
|
|
|
|
|
win = 1;
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case '>':
|
|
|
|
|
if (GET_CODE (operand) == MEM
|
|
|
|
|
&& ! address_reloaded[i]
|
|
|
|
|
&& (GET_CODE (XEXP (operand, 0)) == PRE_INC
|
|
|
|
|
|| GET_CODE (XEXP (operand, 0)) == POST_INC))
|
|
|
|
|
win = 1;
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
/* Memory operand whose address is not offsettable. */
|
|
|
|
|
case 'V':
|
|
|
|
|
if (force_reload)
|
|
|
|
|
break;
|
|
|
|
|
if (GET_CODE (operand) == MEM
|
|
|
|
|
&& ! (ind_levels ? offsettable_memref_p (operand)
|
|
|
|
|
: offsettable_nonstrict_memref_p (operand))
|
|
|
|
|
/* Certain mem addresses will become offsettable
|
|
|
|
|
after they themselves are reloaded. This is important;
|
|
|
|
|
we don't want our own handling of unoffsettables
|
|
|
|
|
to override the handling of reg_equiv_address. */
|
|
|
|
|
&& !(GET_CODE (XEXP (operand, 0)) == REG
|
|
|
|
|
&& (ind_levels == 0
|
|
|
|
|
|| reg_equiv_address[REGNO (XEXP (operand, 0))] != 0)))
|
|
|
|
|
win = 1;
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
/* Memory operand whose address is offsettable. */
|
|
|
|
|
case 'o':
|
|
|
|
|
if (force_reload)
|
|
|
|
|
break;
|
|
|
|
|
if ((GET_CODE (operand) == MEM
|
|
|
|
|
/* If IND_LEVELS, find_reloads_address won't reload a
|
|
|
|
|
pseudo that didn't get a hard reg, so we have to
|
|
|
|
|
reject that case. */
|
1999-01-27 02:43:17 +01:00
|
|
|
|
&& ((ind_levels ? offsettable_memref_p (operand)
|
|
|
|
|
: offsettable_nonstrict_memref_p (operand))
|
|
|
|
|
/* A reloaded address is offsettable because it is now
|
|
|
|
|
just a simple register indirect. */
|
|
|
|
|
|| address_reloaded[i]))
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|| (GET_CODE (operand) == REG
|
|
|
|
|
&& REGNO (operand) >= FIRST_PSEUDO_REGISTER
|
1993-11-05 01:00:08 +01:00
|
|
|
|
&& reg_renumber[REGNO (operand)] < 0
|
|
|
|
|
/* If reg_equiv_address is nonzero, we will be
|
|
|
|
|
loading it into a register; hence it will be
|
|
|
|
|
offsettable, but we cannot say that reg_equiv_mem
|
|
|
|
|
is offsettable without checking. */
|
|
|
|
|
&& ((reg_equiv_mem[REGNO (operand)] != 0
|
|
|
|
|
&& offsettable_memref_p (reg_equiv_mem[REGNO (operand)]))
|
|
|
|
|
|| (reg_equiv_address[REGNO (operand)] != 0))))
|
1992-02-28 11:23:25 +01:00
|
|
|
|
win = 1;
|
1997-11-05 02:08:08 +01:00
|
|
|
|
/* force_const_mem does not accept HIGH. */
|
|
|
|
|
if ((CONSTANT_P (operand) && GET_CODE (operand) != HIGH)
|
|
|
|
|
|| GET_CODE (operand) == MEM)
|
1992-02-28 11:23:25 +01:00
|
|
|
|
badop = 0;
|
1994-05-17 21:51:48 +02:00
|
|
|
|
constmemok = 1;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
offmemok = 1;
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case '&':
|
|
|
|
|
/* Output operand that is stored before the need for the
|
|
|
|
|
input operands (and their index registers) is over. */
|
|
|
|
|
earlyclobber = 1, this_earlyclobber = 1;
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case 'E':
|
|
|
|
|
case 'F':
|
|
|
|
|
if (GET_CODE (operand) == CONST_DOUBLE)
|
|
|
|
|
win = 1;
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case 'G':
|
|
|
|
|
case 'H':
|
|
|
|
|
if (GET_CODE (operand) == CONST_DOUBLE
|
|
|
|
|
&& CONST_DOUBLE_OK_FOR_LETTER_P (operand, c))
|
|
|
|
|
win = 1;
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case 's':
|
|
|
|
|
if (GET_CODE (operand) == CONST_INT
|
|
|
|
|
|| (GET_CODE (operand) == CONST_DOUBLE
|
|
|
|
|
&& GET_MODE (operand) == VOIDmode))
|
|
|
|
|
break;
|
|
|
|
|
case 'i':
|
|
|
|
|
if (CONSTANT_P (operand)
|
|
|
|
|
#ifdef LEGITIMATE_PIC_OPERAND_P
|
|
|
|
|
&& (! flag_pic || LEGITIMATE_PIC_OPERAND_P (operand))
|
|
|
|
|
#endif
|
|
|
|
|
)
|
|
|
|
|
win = 1;
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case 'n':
|
|
|
|
|
if (GET_CODE (operand) == CONST_INT
|
|
|
|
|
|| (GET_CODE (operand) == CONST_DOUBLE
|
|
|
|
|
&& GET_MODE (operand) == VOIDmode))
|
|
|
|
|
win = 1;
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case 'I':
|
|
|
|
|
case 'J':
|
|
|
|
|
case 'K':
|
|
|
|
|
case 'L':
|
|
|
|
|
case 'M':
|
|
|
|
|
case 'N':
|
|
|
|
|
case 'O':
|
|
|
|
|
case 'P':
|
|
|
|
|
if (GET_CODE (operand) == CONST_INT
|
|
|
|
|
&& CONST_OK_FOR_LETTER_P (INTVAL (operand), c))
|
|
|
|
|
win = 1;
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case 'X':
|
|
|
|
|
win = 1;
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case 'g':
|
|
|
|
|
if (! force_reload
|
|
|
|
|
/* A PLUS is never a valid operand, but reload can make
|
|
|
|
|
it from a register when eliminating registers. */
|
|
|
|
|
&& GET_CODE (operand) != PLUS
|
|
|
|
|
/* A SCRATCH is not a valid operand. */
|
|
|
|
|
&& GET_CODE (operand) != SCRATCH
|
|
|
|
|
#ifdef LEGITIMATE_PIC_OPERAND_P
|
1999-09-01 16:30:35 +02:00
|
|
|
|
&& (! CONSTANT_P (operand)
|
|
|
|
|
|| ! flag_pic
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|| LEGITIMATE_PIC_OPERAND_P (operand))
|
|
|
|
|
#endif
|
|
|
|
|
&& (GENERAL_REGS == ALL_REGS
|
|
|
|
|
|| GET_CODE (operand) != REG
|
|
|
|
|
|| (REGNO (operand) >= FIRST_PSEUDO_REGISTER
|
|
|
|
|
&& reg_renumber[REGNO (operand)] < 0)))
|
|
|
|
|
win = 1;
|
2001-07-24 00:41:10 +02:00
|
|
|
|
/* Drop through into 'r' case. */
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
|
|
|
|
case 'r':
|
|
|
|
|
this_alternative[i]
|
|
|
|
|
= (int) reg_class_subunion[this_alternative[i]][(int) GENERAL_REGS];
|
|
|
|
|
goto reg;
|
|
|
|
|
|
2000-08-29 02:44:21 +02:00
|
|
|
|
default:
|
|
|
|
|
if (REG_CLASS_FROM_LETTER (c) == NO_REGS)
|
|
|
|
|
{
|
1992-02-28 11:23:25 +01:00
|
|
|
|
#ifdef EXTRA_CONSTRAINT
|
2000-08-29 02:44:21 +02:00
|
|
|
|
if (EXTRA_CONSTRAINT (operand, c))
|
|
|
|
|
win = 1;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
#endif
|
2000-08-29 02:44:21 +02:00
|
|
|
|
break;
|
|
|
|
|
}
|
1999-09-01 16:30:35 +02:00
|
|
|
|
|
1992-02-28 11:23:25 +01:00
|
|
|
|
this_alternative[i]
|
|
|
|
|
= (int) reg_class_subunion[this_alternative[i]][(int) REG_CLASS_FROM_LETTER (c)];
|
|
|
|
|
reg:
|
|
|
|
|
if (GET_MODE (operand) == BLKmode)
|
|
|
|
|
break;
|
|
|
|
|
winreg = 1;
|
|
|
|
|
if (GET_CODE (operand) == REG
|
|
|
|
|
&& reg_fits_class_p (operand, this_alternative[i],
|
1999-09-12 03:51:28 +02:00
|
|
|
|
offset, GET_MODE (recog_data.operand[i])))
|
1992-02-28 11:23:25 +01:00
|
|
|
|
win = 1;
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
constraints[i] = p;
|
|
|
|
|
|
|
|
|
|
/* If this operand could be handled with a reg,
|
|
|
|
|
and some reg is allowed, then this operand can be handled. */
|
|
|
|
|
if (winreg && this_alternative[i] != (int) NO_REGS)
|
|
|
|
|
badop = 0;
|
|
|
|
|
|
|
|
|
|
/* Record which operands fit this alternative. */
|
|
|
|
|
this_alternative_earlyclobber[i] = earlyclobber;
|
|
|
|
|
if (win && ! force_reload)
|
|
|
|
|
this_alternative_win[i] = 1;
|
2000-10-28 21:33:09 +02:00
|
|
|
|
else if (did_match && ! force_reload)
|
|
|
|
|
this_alternative_match_win[i] = 1;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
else
|
|
|
|
|
{
|
1994-05-17 21:51:48 +02:00
|
|
|
|
int const_to_mem = 0;
|
|
|
|
|
|
1992-02-28 11:23:25 +01:00
|
|
|
|
this_alternative_offmemok[i] = offmemok;
|
|
|
|
|
losers++;
|
|
|
|
|
if (badop)
|
|
|
|
|
bad = 1;
|
|
|
|
|
/* Alternative loses if it has no regs for a reg operand. */
|
|
|
|
|
if (GET_CODE (operand) == REG
|
|
|
|
|
&& this_alternative[i] == (int) NO_REGS
|
|
|
|
|
&& this_alternative_matches[i] < 0)
|
|
|
|
|
bad = 1;
|
|
|
|
|
|
1993-11-05 01:00:08 +01:00
|
|
|
|
/* If this is a constant that is reloaded into the desired
|
|
|
|
|
class by copying it to memory first, count that as another
|
|
|
|
|
reload. This is consistent with other code and is
|
1995-04-10 23:39:56 +02:00
|
|
|
|
required to avoid choosing another alternative when
|
1993-11-05 01:00:08 +01:00
|
|
|
|
the constant is moved into memory by this function on
|
1999-09-01 16:30:35 +02:00
|
|
|
|
an early reload pass. Note that the test here is
|
1993-11-05 01:00:08 +01:00
|
|
|
|
precisely the same as in the code below that calls
|
|
|
|
|
force_const_mem. */
|
|
|
|
|
if (CONSTANT_P (operand)
|
1994-07-12 21:09:44 +02:00
|
|
|
|
/* force_const_mem does not accept HIGH. */
|
|
|
|
|
&& GET_CODE (operand) != HIGH
|
1998-04-04 15:32:39 +02:00
|
|
|
|
&& ((PREFERRED_RELOAD_CLASS (operand,
|
1999-09-01 16:30:35 +02:00
|
|
|
|
(enum reg_class) this_alternative[i])
|
1998-04-04 15:32:39 +02:00
|
|
|
|
== NO_REGS)
|
|
|
|
|
|| no_input_reloads)
|
1993-11-05 01:00:08 +01:00
|
|
|
|
&& operand_mode[i] != VOIDmode)
|
1994-05-17 21:51:48 +02:00
|
|
|
|
{
|
|
|
|
|
const_to_mem = 1;
|
|
|
|
|
if (this_alternative[i] != (int) NO_REGS)
|
|
|
|
|
losers++;
|
|
|
|
|
}
|
1993-11-05 01:00:08 +01:00
|
|
|
|
|
1994-05-07 00:55:32 +02:00
|
|
|
|
/* If we can't reload this value at all, reject this
|
|
|
|
|
alternative. Note that we could also lose due to
|
|
|
|
|
LIMIT_RELOAD_RELOAD_CLASS, but we don't check that
|
|
|
|
|
here. */
|
|
|
|
|
|
|
|
|
|
if (! CONSTANT_P (operand)
|
1994-06-23 23:59:22 +02:00
|
|
|
|
&& (enum reg_class) this_alternative[i] != NO_REGS
|
1994-05-07 00:55:32 +02:00
|
|
|
|
&& (PREFERRED_RELOAD_CLASS (operand,
|
|
|
|
|
(enum reg_class) this_alternative[i])
|
|
|
|
|
== NO_REGS))
|
|
|
|
|
bad = 1;
|
|
|
|
|
|
1998-04-04 15:32:39 +02:00
|
|
|
|
/* Alternative loses if it requires a type of reload not
|
|
|
|
|
permitted for this insn. We can always reload SCRATCH
|
|
|
|
|
and objects with a REG_UNUSED note. */
|
|
|
|
|
else if (GET_CODE (operand) != SCRATCH
|
1999-09-01 16:30:35 +02:00
|
|
|
|
&& modified[i] != RELOAD_READ && no_output_reloads
|
|
|
|
|
&& ! find_reg_note (insn, REG_UNUSED, operand))
|
1998-04-04 15:32:39 +02:00
|
|
|
|
bad = 1;
|
|
|
|
|
else if (modified[i] != RELOAD_WRITE && no_input_reloads
|
|
|
|
|
&& ! const_to_mem)
|
|
|
|
|
bad = 1;
|
|
|
|
|
|
1992-02-28 11:23:25 +01:00
|
|
|
|
/* We prefer to reload pseudos over reloading other things,
|
|
|
|
|
since such reloads may be able to be eliminated later.
|
|
|
|
|
If we are reloading a SCRATCH, we won't be generating any
|
1999-09-01 16:30:35 +02:00
|
|
|
|
insns, just using a register, so it is also preferred.
|
1994-05-17 21:51:48 +02:00
|
|
|
|
So bump REJECT in other cases. Don't do this in the
|
|
|
|
|
case where we are forcing a constant into memory and
|
|
|
|
|
it will then win since we don't want to have a different
|
|
|
|
|
alternative match then. */
|
1993-09-02 00:46:03 +02:00
|
|
|
|
if (! (GET_CODE (operand) == REG
|
|
|
|
|
&& REGNO (operand) >= FIRST_PSEUDO_REGISTER)
|
1994-05-17 21:51:48 +02:00
|
|
|
|
&& GET_CODE (operand) != SCRATCH
|
|
|
|
|
&& ! (const_to_mem && constmemok))
|
1998-03-26 11:44:22 +01:00
|
|
|
|
reject += 2;
|
|
|
|
|
|
|
|
|
|
/* Input reloads can be inherited more often than output
|
|
|
|
|
reloads can be removed, so penalize output reloads. */
|
1998-05-14 21:54:35 +02:00
|
|
|
|
if (operand_type[i] != RELOAD_FOR_INPUT
|
|
|
|
|
&& GET_CODE (operand) != SCRATCH)
|
1992-02-28 11:23:25 +01:00
|
|
|
|
reject++;
|
|
|
|
|
}
|
|
|
|
|
|
1999-09-01 16:30:35 +02:00
|
|
|
|
/* If this operand is a pseudo register that didn't get a hard
|
1992-02-28 11:23:25 +01:00
|
|
|
|
reg and this alternative accepts some register, see if the
|
|
|
|
|
class that we want is a subset of the preferred class for this
|
|
|
|
|
register. If not, but it intersects that class, use the
|
|
|
|
|
preferred class instead. If it does not intersect the preferred
|
|
|
|
|
class, show that usage of this alternative should be discouraged;
|
|
|
|
|
it will be discouraged more still if the register is `preferred
|
|
|
|
|
or nothing'. We do this because it increases the chance of
|
|
|
|
|
reusing our spill register in a later insn and avoiding a pair
|
|
|
|
|
of memory stores and loads.
|
|
|
|
|
|
|
|
|
|
Don't bother with this if this alternative will accept this
|
|
|
|
|
operand.
|
|
|
|
|
|
1994-02-25 13:19:23 +01:00
|
|
|
|
Don't do this for a multiword operand, since it is only a
|
|
|
|
|
small win and has the risk of requiring more spill registers,
|
|
|
|
|
which could cause a large loss.
|
1992-11-28 00:52:02 +01:00
|
|
|
|
|
1992-02-28 11:23:25 +01:00
|
|
|
|
Don't do this if the preferred class has only one register
|
|
|
|
|
because we might otherwise exhaust the class. */
|
|
|
|
|
|
2000-10-28 21:33:09 +02:00
|
|
|
|
if (! win && ! did_match
|
|
|
|
|
&& this_alternative[i] != (int) NO_REGS
|
1992-11-28 00:52:02 +01:00
|
|
|
|
&& GET_MODE_SIZE (operand_mode[i]) <= UNITS_PER_WORD
|
1992-02-28 11:23:25 +01:00
|
|
|
|
&& reg_class_size[(int) preferred_class[i]] > 1)
|
|
|
|
|
{
|
|
|
|
|
if (! reg_class_subset_p (this_alternative[i],
|
|
|
|
|
preferred_class[i]))
|
|
|
|
|
{
|
|
|
|
|
/* Since we don't have a way of forming the intersection,
|
|
|
|
|
we just do something special if the preferred class
|
1999-09-01 16:30:35 +02:00
|
|
|
|
is a subset of the class we have; that's the most
|
1992-02-28 11:23:25 +01:00
|
|
|
|
common case anyway. */
|
|
|
|
|
if (reg_class_subset_p (preferred_class[i],
|
|
|
|
|
this_alternative[i]))
|
|
|
|
|
this_alternative[i] = (int) preferred_class[i];
|
|
|
|
|
else
|
1998-03-26 11:44:22 +01:00
|
|
|
|
reject += (2 + 2 * pref_or_nothing[i]);
|
1992-02-28 11:23:25 +01:00
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Now see if any output operands that are marked "earlyclobber"
|
|
|
|
|
in this alternative conflict with any input operands
|
|
|
|
|
or any memory addresses. */
|
|
|
|
|
|
|
|
|
|
for (i = 0; i < noperands; i++)
|
|
|
|
|
if (this_alternative_earlyclobber[i]
|
2000-10-28 21:33:09 +02:00
|
|
|
|
&& (this_alternative_win[i] || this_alternative_match_win[i]))
|
1992-02-28 11:23:25 +01:00
|
|
|
|
{
|
1999-09-01 16:30:35 +02:00
|
|
|
|
struct decomposition early_data;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
1999-09-12 03:51:28 +02:00
|
|
|
|
early_data = decompose (recog_data.operand[i]);
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
|
|
|
|
if (modified[i] == RELOAD_READ)
|
1998-10-08 06:07:40 +02:00
|
|
|
|
abort ();
|
1999-09-01 16:30:35 +02:00
|
|
|
|
|
1992-02-28 11:23:25 +01:00
|
|
|
|
if (this_alternative[i] == NO_REGS)
|
|
|
|
|
{
|
|
|
|
|
this_alternative_earlyclobber[i] = 0;
|
|
|
|
|
if (this_insn_is_asm)
|
|
|
|
|
error_for_asm (this_insn,
|
|
|
|
|
"`&' constraint used with no register class");
|
|
|
|
|
else
|
|
|
|
|
abort ();
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
for (j = 0; j < noperands; j++)
|
|
|
|
|
/* Is this an input operand or a memory ref? */
|
1999-09-12 03:51:28 +02:00
|
|
|
|
if ((GET_CODE (recog_data.operand[j]) == MEM
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|| modified[j] != RELOAD_WRITE)
|
|
|
|
|
&& j != i
|
|
|
|
|
/* Ignore things like match_operator operands. */
|
1999-09-12 03:51:28 +02:00
|
|
|
|
&& *recog_data.constraints[j] != 0
|
1992-02-28 11:23:25 +01:00
|
|
|
|
/* Don't count an input operand that is constrained to match
|
|
|
|
|
the early clobber operand. */
|
|
|
|
|
&& ! (this_alternative_matches[j] == i
|
1999-09-12 03:51:28 +02:00
|
|
|
|
&& rtx_equal_p (recog_data.operand[i],
|
|
|
|
|
recog_data.operand[j]))
|
1992-02-28 11:23:25 +01:00
|
|
|
|
/* Is it altered by storing the earlyclobber operand? */
|
1999-09-12 03:51:28 +02:00
|
|
|
|
&& !immune_p (recog_data.operand[j], recog_data.operand[i],
|
|
|
|
|
early_data))
|
1992-02-28 11:23:25 +01:00
|
|
|
|
{
|
|
|
|
|
/* If the output is in a single-reg class,
|
|
|
|
|
it's costly to reload it, so reload the input instead. */
|
|
|
|
|
if (reg_class_size[this_alternative[i]] == 1
|
1999-09-12 03:51:28 +02:00
|
|
|
|
&& (GET_CODE (recog_data.operand[j]) == REG
|
|
|
|
|
|| GET_CODE (recog_data.operand[j]) == SUBREG))
|
1992-02-28 11:23:25 +01:00
|
|
|
|
{
|
|
|
|
|
losers++;
|
|
|
|
|
this_alternative_win[j] = 0;
|
2000-10-28 21:33:09 +02:00
|
|
|
|
this_alternative_match_win[j] = 0;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
/* If an earlyclobber operand conflicts with something,
|
|
|
|
|
it must be reloaded, so request this and count the cost. */
|
|
|
|
|
if (j != noperands)
|
|
|
|
|
{
|
|
|
|
|
losers++;
|
|
|
|
|
this_alternative_win[i] = 0;
|
2000-10-28 21:33:09 +02:00
|
|
|
|
this_alternative_match_win[j] = 0;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
for (j = 0; j < noperands; j++)
|
|
|
|
|
if (this_alternative_matches[j] == i
|
2000-10-28 21:33:09 +02:00
|
|
|
|
&& this_alternative_match_win[j])
|
1992-02-28 11:23:25 +01:00
|
|
|
|
{
|
|
|
|
|
this_alternative_win[j] = 0;
|
2000-10-28 21:33:09 +02:00
|
|
|
|
this_alternative_match_win[j] = 0;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
losers++;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* If one alternative accepts all the operands, no reload required,
|
|
|
|
|
choose that alternative; don't consider the remaining ones. */
|
|
|
|
|
if (losers == 0)
|
|
|
|
|
{
|
|
|
|
|
/* Unswap these so that they are never swapped at `finish'. */
|
|
|
|
|
if (commutative >= 0)
|
|
|
|
|
{
|
1999-09-12 03:51:28 +02:00
|
|
|
|
recog_data.operand[commutative] = substed_operand[commutative];
|
|
|
|
|
recog_data.operand[commutative + 1]
|
1992-02-28 11:23:25 +01:00
|
|
|
|
= substed_operand[commutative + 1];
|
|
|
|
|
}
|
|
|
|
|
for (i = 0; i < noperands; i++)
|
|
|
|
|
{
|
2000-10-28 21:33:09 +02:00
|
|
|
|
goal_alternative_win[i] = this_alternative_win[i];
|
|
|
|
|
goal_alternative_match_win[i] = this_alternative_match_win[i];
|
1992-02-28 11:23:25 +01:00
|
|
|
|
goal_alternative[i] = this_alternative[i];
|
|
|
|
|
goal_alternative_offmemok[i] = this_alternative_offmemok[i];
|
|
|
|
|
goal_alternative_matches[i] = this_alternative_matches[i];
|
|
|
|
|
goal_alternative_earlyclobber[i]
|
|
|
|
|
= this_alternative_earlyclobber[i];
|
|
|
|
|
}
|
|
|
|
|
goal_alternative_number = this_alternative_number;
|
|
|
|
|
goal_alternative_swapped = swapped;
|
|
|
|
|
goal_earlyclobber = this_earlyclobber;
|
|
|
|
|
goto finish;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* REJECT, set by the ! and ? constraint characters and when a register
|
|
|
|
|
would be reloaded into a non-preferred class, discourages the use of
|
1998-03-26 11:44:22 +01:00
|
|
|
|
this alternative for a reload goal. REJECT is incremented by six
|
|
|
|
|
for each ? and two for each non-preferred class. */
|
|
|
|
|
losers = losers * 6 + reject;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
|
|
|
|
/* If this alternative can be made to work by reloading,
|
|
|
|
|
and it needs less reloading than the others checked so far,
|
|
|
|
|
record it as the chosen goal for reloading. */
|
|
|
|
|
if (! bad && best > losers)
|
|
|
|
|
{
|
|
|
|
|
for (i = 0; i < noperands; i++)
|
|
|
|
|
{
|
|
|
|
|
goal_alternative[i] = this_alternative[i];
|
|
|
|
|
goal_alternative_win[i] = this_alternative_win[i];
|
2000-10-28 21:33:09 +02:00
|
|
|
|
goal_alternative_match_win[i] = this_alternative_match_win[i];
|
1992-02-28 11:23:25 +01:00
|
|
|
|
goal_alternative_offmemok[i] = this_alternative_offmemok[i];
|
|
|
|
|
goal_alternative_matches[i] = this_alternative_matches[i];
|
|
|
|
|
goal_alternative_earlyclobber[i]
|
|
|
|
|
= this_alternative_earlyclobber[i];
|
|
|
|
|
}
|
|
|
|
|
goal_alternative_swapped = swapped;
|
|
|
|
|
best = losers;
|
|
|
|
|
goal_alternative_number = this_alternative_number;
|
|
|
|
|
goal_earlyclobber = this_earlyclobber;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* If insn is commutative (it's safe to exchange a certain pair of operands)
|
|
|
|
|
then we need to try each alternative twice,
|
|
|
|
|
the second time matching those two operands
|
|
|
|
|
as if we had exchanged them.
|
|
|
|
|
To do this, really exchange them in operands.
|
|
|
|
|
|
|
|
|
|
If we have just tried the alternatives the second time,
|
|
|
|
|
return operands to normal and drop through. */
|
|
|
|
|
|
|
|
|
|
if (commutative >= 0)
|
|
|
|
|
{
|
|
|
|
|
swapped = !swapped;
|
|
|
|
|
if (swapped)
|
|
|
|
|
{
|
2001-10-11 05:16:15 +02:00
|
|
|
|
enum reg_class tclass;
|
|
|
|
|
int t;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
1999-09-12 03:51:28 +02:00
|
|
|
|
recog_data.operand[commutative] = substed_operand[commutative + 1];
|
|
|
|
|
recog_data.operand[commutative + 1] = substed_operand[commutative];
|
2001-12-03 16:22:47 +01:00
|
|
|
|
/* Swap the duplicates too. */
|
|
|
|
|
for (i = 0; i < recog_data.n_dups; i++)
|
|
|
|
|
if (recog_data.dup_num[i] == commutative
|
|
|
|
|
|| recog_data.dup_num[i] == commutative + 1)
|
|
|
|
|
*recog_data.dup_loc[i]
|
|
|
|
|
= recog_data.operand[(int) recog_data.dup_num[i]];
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
|
|
|
|
tclass = preferred_class[commutative];
|
|
|
|
|
preferred_class[commutative] = preferred_class[commutative + 1];
|
|
|
|
|
preferred_class[commutative + 1] = tclass;
|
|
|
|
|
|
|
|
|
|
t = pref_or_nothing[commutative];
|
|
|
|
|
pref_or_nothing[commutative] = pref_or_nothing[commutative + 1];
|
|
|
|
|
pref_or_nothing[commutative + 1] = t;
|
|
|
|
|
|
collect2.c (scan_prog_file, [...]): Prototype function pointers and casts for `int_handler' and `quit_handler'.
* collect2.c (scan_prog_file, scan_libraries): Prototype function
pointers and casts for `int_handler' and `quit_handler'.
* flow.c (verify_flow_info, split_hard_reg_notes,
find_insn_with_note, sets_reg_or_subreg_1, prepend_reg_notes,
remove_edge, remove_fake_successors): Add static prototypes.
(verify_flow_info): Wrap with macro ENABLE_CHECKING.
(mark_set_1): Initialize variable `regno'.
(unlink_insn_chain): Likewise for variable `curr'.
(remove_fake_edges): Remove unused variables `e', `tmp' and `last'.
* loop.c (strength_reduce): Initialize variable
`unrolled_insn_copies'.
(cmp_combine_givs_stats, cmp_recombine_givs_stats): Add static
prototypes. Change these functions to take const PTR parameters
to avoid prototype conflict when used as the comparson argument
for qsort.
(check_dbra_loop): Initialize variable `comparison_val'.
* reload.c (debug_reload_to_stream, debug_reload): Add prototypes.
(get_secondary_mem): Mark parameter `x' with ATTRIBUTE_UNUSED.
(find_valid_class): Initialize variable `best_class'.
(find_reloads): Call memcpy, not bcopy.
* reload1.c (gen_mode_int, dump_needs): Add prototypes.
(hard_reg_use_compare): Don't needlessly cast away const.
(reload_reg_class_lower): Likewise.
(choose_reload_regs): Initialize variable `regno'.
From-SVN: r29840
1999-10-06 16:48:41 +02:00
|
|
|
|
memcpy (constraints, recog_data.constraints,
|
|
|
|
|
noperands * sizeof (char *));
|
1992-02-28 11:23:25 +01:00
|
|
|
|
goto try_swapped;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
1999-09-12 03:51:28 +02:00
|
|
|
|
recog_data.operand[commutative] = substed_operand[commutative];
|
|
|
|
|
recog_data.operand[commutative + 1]
|
|
|
|
|
= substed_operand[commutative + 1];
|
2001-12-03 16:22:47 +01:00
|
|
|
|
/* Unswap the duplicates too. */
|
|
|
|
|
for (i = 0; i < recog_data.n_dups; i++)
|
|
|
|
|
if (recog_data.dup_num[i] == commutative
|
|
|
|
|
|| recog_data.dup_num[i] == commutative + 1)
|
|
|
|
|
*recog_data.dup_loc[i]
|
|
|
|
|
= recog_data.operand[(int) recog_data.dup_num[i]];
|
1992-02-28 11:23:25 +01:00
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* The operands don't meet the constraints.
|
|
|
|
|
goal_alternative describes the alternative
|
|
|
|
|
that we could reach by reloading the fewest operands.
|
|
|
|
|
Reload so as to fit it. */
|
|
|
|
|
|
1998-06-23 20:28:47 +02:00
|
|
|
|
if (best == MAX_RECOG_OPERANDS * 2 + 600)
|
1992-02-28 11:23:25 +01:00
|
|
|
|
{
|
|
|
|
|
/* No alternative works with reloads?? */
|
|
|
|
|
if (insn_code_number >= 0)
|
c-decl.c (duplicate_decls, [...]): Remove leading capital from diagnostics.
* c-decl.c (duplicate_decls, push_parm_decl): Remove leading
capital from diagnostics.
* c-lex.c (cb_file_change): Similarly.
* c-parse.in : Similarly.
* cfgrtl.c (verify_flow_info): Similarly.
* collect2.c: Similarly.
* cppfiles.c (find_include_file): Similarly.
* cppinit.c (cpp_handle_option): Similarly.
* cpplex.c (cpp_spell_token): Similarly.
* cppmain.c (do_preprocessing): Similarly.
* gcc.c (translate_options, process_command, do_spec1,
main, pfatal_execute): Similarly.
* genattr.c (main): Similarly.
* genattrtab.c (check_attr_test, operate_exp, simplify_test_exp,
write_test_expr, main): Similarly.
* gencodes.c (main): Similarly.
* genconfig.c (main): Similarly.
* genconstants.c (main): Similarly.
* genemit.c (main): Similarly.
* genextract.c (main): Similarly.
* genflags.c (main): Similarly.
* genopinit.c (main): Similarly.
* genoutput.c (process_template, main): Similarly.
* genpeep.c (main): Similarly.
* genrecog.c (main): Similarly.
* gensupport.c (is_predicable, identify_predicable_attribute,
alter_predicate_for_insn, init_md_reader_args, main): Similarly.
* ggc-page.c (alloc_anon): Similarly.
* mips-tfile.c (add_string, add_procedure, add_file, read_line,
parse_begin, parse_bend, parse_def, parse_end, parse_file,
parse_stabs_common, parse_stabs, write_varray, write_object,
read_seek, copy_object, main, error): Similarly.
* profile.c (compute_branch_probabilities): Similarly.
* reg-stack.c (check_asm_stack_operands): Similarly.
* reload.c (find_reloads): Similarly.
* reload1.c (spill_failure, failed_reload): Similarly.
* rtl-error.c (_fatal_insn_not_found): Similarly.
* toplev.c (read_integral_parameter, crash_signal,
decode_f_option, set_target_switch, parse_options_and_default_flags)
: Similarly.
* tradcif.y (parse_number, yylex): Similarly.
* tradcpp.c (main, fancy_abort): Similarly.
* tree.c (tree_check_failed): Similarly.
* varray.c (varray_check_failed): Similarly.
* xcoffout.c (xcoff_output_standard_types): Similarly.
cp:
* call.c (build_java_interface_fn_ref): Similarly.
* except.c (is_admissible_throw_operand): Similarly.
* init.c (build_java_class_ref): Similarly.
* xref.c (open_xref_file): Similarly.
objc:
* objc-act.c (get_object_ref, lookup_and_install_protocols,
build_objc_string_object, objc_declare_alias, build_ivar_chain,
finish_message_expr, build_protocol_expr, is_public,
start_class): Similarly.
testsuite:
* objc.dg/alias.m: Update.
* objc.dg/class-1.m: Update.
* objc.dg/const-str-1.m: Update.
* objc.dg/fwd-proto-1.m: Update.
* objc.dg/id-1.m: Update.
* objc.dg/super-class-1.m: Update.
From-SVN: r47518
2001-12-02 01:04:36 +01:00
|
|
|
|
fatal_insn ("unable to generate reloads for:", insn);
|
1992-02-28 11:23:25 +01:00
|
|
|
|
error_for_asm (insn, "inconsistent operand constraints in an `asm'");
|
|
|
|
|
/* Avoid further trouble with this insn. */
|
alias.c: Change all uses of gen_rtx(FOO...) to gen_rtx_FOO...
* alias.c: Change all uses of gen_rtx(FOO...) to gen_rtx_FOO;
change gen_rtx(expr...) to gen_rtx_fmt_foo(expr...).
* caller-save.c, calls.c, combine.c, cse.c: Likewise.
* dwarf2out.c, except.c, explow.c, expmed.c, expr.c: Likewise.
* final.c, flow.c, function.c, genpeep.c, haifa-sched.c: Likewise.
* halfpic.c, integrate.c, jump.c, local-alloc.c, loop.c: Likewise.
* profile.c, recog.c, reg-stack.c, regclass.c, regmove.c: Likewise.
* reload.c, reload1.c, reorg.c, sched.c, stmt.c, stupid.c: Likewise.
* unroll.c, varasm.c: Likewise.
* config/alpha/alpha.c, config/alpha/alpha.md: Likewise.
From-SVN: r17357
1998-01-15 00:10:50 +01:00
|
|
|
|
PATTERN (insn) = gen_rtx_USE (VOIDmode, const0_rtx);
|
1992-02-28 11:23:25 +01:00
|
|
|
|
n_reloads = 0;
|
Fix consistency problems with reg_equiv_{mem,address};
Improve reload inheritance;
* reload.c (reload_out_reg): New variable.
(loc_mentioned_in_p, remove_address_replacements): New functions.
(remove_replacements): Deleted.
(push_reload): Set reload_out_reg[i].
When merging, also set reload_{in,out}_reg[i], and remove
duplicate address reloads.
(combine_reloads): Copy reload_out_reg[i].
(find_reloads): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
Include *recog_operand_loc in commutativity operand changes.
Generate optional output reloads.
Delete reference to n_memlocs. Don't set *recog_operand_loc before
processing operands. Call make_memloc in reg_equiv_address code.
Set *recog_operand_loc only after processing operands, and only
if replace is true. Return a value.
When changing address reload types for operands that didn't get
reloaded, use RELOAD_FOR_OPADDR_ADDRESS for
RELOAD_FOR_INPADDR_ADDRESS / RELOAD_FOR_OUTADDR_ADDRESS reloads.
Don't emit USEs for pseudo SUBREGs when not replacing.
(find_reloads_address): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
(find_reloads_toplev): Likewise.
Call make_memloc in reg_equiv_address code.
(debug_reload_to_stream): Add code to output reload_out_reg.
(make_memloc): Delete local variable i, ifdefed out code, and
references to memlocs and n_memlocs.
(memlocs, n_memlocs): Delete.
(push_secondary_reload): Clear reload_out_reg.
(find_reloads_address_1): Provide memrefloc argument to all calls
to find_reloads_address.
In AUTO_INC code, handle non-directly addressable equivalences properly.
* reload.h (reload_out_reg, num_not_at_initial_offset): Declare.
(find_reloads): Add return type.
(remove_address_replacements, deallocate_reload_reg): Declare.
* reload1.c (num_not_at_initial_offset): No longer static.
(delete_address_reloads, delete_address_reloads_1): Likewise.
(deallocate_reload_reg): New function.
(spill_reg_stored_to): New array.
(eliminate_regs): Don't substitute from reg_equiv_memory_loc.
(eliminate_regs_in_insn): Move assignments of previous_offset and
max_offset fields, and recalculation of num_not_at_initial_offset
into new static function:
(update_eliminable_offsets) .
(reload_as_needed): Call update_eliminable_offsetss after calling
find_reloads.
Call forget_old_reloads_1 with contents of reloaded auto_inc
expressions if the actual addressing can't be changed to match the
auto_inc.
(choose_reload_regs): For inheritance, replace
reload_reg_free_before_p test with reload_reg_ions.
(emit_reload_insns): If reload_in is a MEM, set OLD to
reload_in_reg[j].
Don't reload directly from oldequiv; if it's a pseudo with a
stack slot, use reload_in[j].
Check that reload_in_reg[j] is a MEM before replacing reload_in
from reg_reloaded_contents.
Include non-spill registers in reload inheritance processing.
Also try to use reload_out_reg to set spill_reg_store /
reg_last_reload_reg.
In code to set new_spill_reg_store, use single_set to find out if
there is a single set.
Add code that allows to delete optional output reloads.
Add code to allow deletion of output reloads that use no spill reg.
At the end, set reload_override_in to oldequiv.
Also call delete_output_reload if reload_out_reg is equal to old
in oldequiv code.
Add code to call delete_output_reload for stores with no matching load.
Set / use spill_reg_stored_to.
Handle case where secondary output reload uses a temporary, but
actual store isn't found.
When looking for a store of a value not loaded in order to call
delete_output_reload, count_occurences should return 0 for no
loads; but discount inherited input reloadill_reg_stored_to.
Do checks for extra uses of REG. Changed all
callers.
Use delete_address_reloads.
(reload): Take return value of find_reloads into account.
If a no-op set needs more than one reload, delete it.
(reload_reg_free_before_p): RELOAD_FOR_INPUT
can ignore RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS
for the same operand.
(clear_reload_reg_in_use): Check for other reloads that keep a
register in use.
(reload_reg_free_for_value_p): handle RELOAD_FOR_OPERAND_ADDRESS /
RELOAD_FOR_OPADDR_ADDR.
Take into account when an address address reload is only needed
for the address reload we are considering.
(count_occurrences): Use rtx_equal_p for MEMs.
(inc_for_reload): Return instruction that stores into RELOADREG.
New argument two, IN, and rtx. Changed all callers.
(calculate_needs_all_insns, reload_as_needed):
Don't clear after_call for a CLOBBER.
Keep track of how many hard registers need to be copied from
after_call, and don't clear after_call before we have seen
that much copies, or we see a different instruction.
From-SVN: r23143
1998-10-16 21:54:38 +02:00
|
|
|
|
return 0;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Jump to `finish' from above if all operands are valid already.
|
|
|
|
|
In that case, goal_alternative_win is all 1. */
|
|
|
|
|
finish:
|
|
|
|
|
|
|
|
|
|
/* Right now, for any pair of operands I and J that are required to match,
|
|
|
|
|
with I < J,
|
|
|
|
|
goal_alternative_matches[J] is I.
|
|
|
|
|
Set up goal_alternative_matched as the inverse function:
|
|
|
|
|
goal_alternative_matched[I] = J. */
|
|
|
|
|
|
|
|
|
|
for (i = 0; i < noperands; i++)
|
|
|
|
|
goal_alternative_matched[i] = -1;
|
2002-05-09 03:42:28 +02:00
|
|
|
|
|
1992-02-28 11:23:25 +01:00
|
|
|
|
for (i = 0; i < noperands; i++)
|
|
|
|
|
if (! goal_alternative_win[i]
|
|
|
|
|
&& goal_alternative_matches[i] >= 0)
|
|
|
|
|
goal_alternative_matched[goal_alternative_matches[i]] = i;
|
|
|
|
|
|
2000-10-28 21:33:09 +02:00
|
|
|
|
for (i = 0; i < noperands; i++)
|
|
|
|
|
goal_alternative_win[i] |= goal_alternative_match_win[i];
|
|
|
|
|
|
1992-02-28 11:23:25 +01:00
|
|
|
|
/* If the best alternative is with operands 1 and 2 swapped,
|
1993-03-29 13:27:52 +02:00
|
|
|
|
consider them swapped before reporting the reloads. Update the
|
|
|
|
|
operand numbers of any reloads already pushed. */
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
|
|
|
|
if (goal_alternative_swapped)
|
|
|
|
|
{
|
2001-10-11 05:16:15 +02:00
|
|
|
|
rtx tem;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
|
|
|
|
tem = substed_operand[commutative];
|
|
|
|
|
substed_operand[commutative] = substed_operand[commutative + 1];
|
|
|
|
|
substed_operand[commutative + 1] = tem;
|
1999-09-12 03:51:28 +02:00
|
|
|
|
tem = recog_data.operand[commutative];
|
|
|
|
|
recog_data.operand[commutative] = recog_data.operand[commutative + 1];
|
|
|
|
|
recog_data.operand[commutative + 1] = tem;
|
|
|
|
|
tem = *recog_data.operand_loc[commutative];
|
|
|
|
|
*recog_data.operand_loc[commutative]
|
|
|
|
|
= *recog_data.operand_loc[commutative + 1];
|
2000-08-29 23:14:57 +02:00
|
|
|
|
*recog_data.operand_loc[commutative + 1] = tem;
|
1993-03-29 13:27:52 +02:00
|
|
|
|
|
|
|
|
|
for (i = 0; i < n_reloads; i++)
|
|
|
|
|
{
|
1999-09-12 16:54:56 +02:00
|
|
|
|
if (rld[i].opnum == commutative)
|
|
|
|
|
rld[i].opnum = commutative + 1;
|
|
|
|
|
else if (rld[i].opnum == commutative + 1)
|
|
|
|
|
rld[i].opnum = commutative;
|
1993-03-29 13:27:52 +02:00
|
|
|
|
}
|
1992-02-28 11:23:25 +01:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
for (i = 0; i < noperands; i++)
|
|
|
|
|
{
|
|
|
|
|
operand_reloadnum[i] = -1;
|
1993-03-29 13:27:52 +02:00
|
|
|
|
|
|
|
|
|
/* If this is an earlyclobber operand, we need to widen the scope.
|
|
|
|
|
The reload must remain valid from the start of the insn being
|
|
|
|
|
reloaded until after the operand is stored into its destination.
|
|
|
|
|
We approximate this with RELOAD_OTHER even though we know that we
|
|
|
|
|
do not conflict with RELOAD_FOR_INPUT_ADDRESS reloads.
|
|
|
|
|
|
|
|
|
|
One special case that is worth checking is when we have an
|
|
|
|
|
output that is earlyclobber but isn't used past the insn (typically
|
1999-09-01 16:30:35 +02:00
|
|
|
|
a SCRATCH). In this case, we only need have the reload live
|
1993-03-29 13:27:52 +02:00
|
|
|
|
through the insn itself, but not for any of our input or output
|
1999-09-01 16:30:35 +02:00
|
|
|
|
reloads.
|
1998-06-18 11:33:39 +02:00
|
|
|
|
But we must not accidentally narrow the scope of an existing
|
|
|
|
|
RELOAD_OTHER reload - leave these alone.
|
1993-03-29 13:27:52 +02:00
|
|
|
|
|
|
|
|
|
In any case, anything needed to address this operand can remain
|
|
|
|
|
however they were previously categorized. */
|
|
|
|
|
|
1998-06-18 11:33:39 +02:00
|
|
|
|
if (goal_alternative_earlyclobber[i] && operand_type[i] != RELOAD_OTHER)
|
1993-03-29 13:27:52 +02:00
|
|
|
|
operand_type[i]
|
1999-09-12 03:51:28 +02:00
|
|
|
|
= (find_reg_note (insn, REG_UNUSED, recog_data.operand[i])
|
1993-03-29 13:27:52 +02:00
|
|
|
|
? RELOAD_FOR_INSN : RELOAD_OTHER);
|
1992-02-28 11:23:25 +01:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Any constants that aren't allowed and can't be reloaded
|
|
|
|
|
into registers are here changed into memory references. */
|
|
|
|
|
for (i = 0; i < noperands; i++)
|
|
|
|
|
if (! goal_alternative_win[i]
|
1999-09-12 03:51:28 +02:00
|
|
|
|
&& CONSTANT_P (recog_data.operand[i])
|
1994-07-12 21:09:44 +02:00
|
|
|
|
/* force_const_mem does not accept HIGH. */
|
1999-09-12 03:51:28 +02:00
|
|
|
|
&& GET_CODE (recog_data.operand[i]) != HIGH
|
|
|
|
|
&& ((PREFERRED_RELOAD_CLASS (recog_data.operand[i],
|
1999-09-01 16:30:35 +02:00
|
|
|
|
(enum reg_class) goal_alternative[i])
|
1998-04-04 15:32:39 +02:00
|
|
|
|
== NO_REGS)
|
|
|
|
|
|| no_input_reloads)
|
1992-02-28 11:23:25 +01:00
|
|
|
|
&& operand_mode[i] != VOIDmode)
|
|
|
|
|
{
|
1999-09-12 03:51:28 +02:00
|
|
|
|
substed_operand[i] = recog_data.operand[i]
|
1992-02-28 11:23:25 +01:00
|
|
|
|
= find_reloads_toplev (force_const_mem (operand_mode[i],
|
1999-09-12 03:51:28 +02:00
|
|
|
|
recog_data.operand[i]),
|
2000-07-23 08:17:41 +02:00
|
|
|
|
i, address_type[i], ind_levels, 0, insn,
|
|
|
|
|
NULL);
|
1999-09-12 03:51:28 +02:00
|
|
|
|
if (alternative_allows_memconst (recog_data.constraints[i],
|
1992-02-28 11:23:25 +01:00
|
|
|
|
goal_alternative_number))
|
|
|
|
|
goal_alternative_win[i] = 1;
|
|
|
|
|
}
|
|
|
|
|
|
1993-09-18 13:57:54 +02:00
|
|
|
|
/* Record the values of the earlyclobber operands for the caller. */
|
|
|
|
|
if (goal_earlyclobber)
|
|
|
|
|
for (i = 0; i < noperands; i++)
|
|
|
|
|
if (goal_alternative_earlyclobber[i])
|
1999-09-12 03:51:28 +02:00
|
|
|
|
reload_earlyclobbers[n_earlyclobbers++] = recog_data.operand[i];
|
1993-09-18 13:57:54 +02:00
|
|
|
|
|
1992-02-28 11:23:25 +01:00
|
|
|
|
/* Now record reloads for all the operands that need them. */
|
|
|
|
|
for (i = 0; i < noperands; i++)
|
|
|
|
|
if (! goal_alternative_win[i])
|
|
|
|
|
{
|
|
|
|
|
/* Operands that match previous ones have already been handled. */
|
|
|
|
|
if (goal_alternative_matches[i] >= 0)
|
|
|
|
|
;
|
|
|
|
|
/* Handle an operand with a nonoffsettable address
|
|
|
|
|
appearing where an offsettable address will do
|
1993-11-05 01:00:08 +01:00
|
|
|
|
by reloading the address into a base register.
|
|
|
|
|
|
|
|
|
|
??? We can also do this when the operand is a register and
|
|
|
|
|
reg_equiv_mem is not offsettable, but this is a bit tricky,
|
|
|
|
|
so we don't bother with it. It may not be worth doing. */
|
1992-02-28 11:23:25 +01:00
|
|
|
|
else if (goal_alternative_matched[i] == -1
|
|
|
|
|
&& goal_alternative_offmemok[i]
|
1999-09-12 03:51:28 +02:00
|
|
|
|
&& GET_CODE (recog_data.operand[i]) == MEM)
|
1992-02-28 11:23:25 +01:00
|
|
|
|
{
|
|
|
|
|
operand_reloadnum[i]
|
1999-09-12 03:51:28 +02:00
|
|
|
|
= push_reload (XEXP (recog_data.operand[i], 0), NULL_RTX,
|
2002-01-10 01:56:56 +01:00
|
|
|
|
&XEXP (recog_data.operand[i], 0), (rtx*) 0,
|
2001-12-17 17:46:11 +01:00
|
|
|
|
MODE_BASE_REG_CLASS (VOIDmode),
|
1999-09-12 03:51:28 +02:00
|
|
|
|
GET_MODE (XEXP (recog_data.operand[i], 0)),
|
1993-03-29 13:27:52 +02:00
|
|
|
|
VOIDmode, 0, 0, i, RELOAD_FOR_INPUT);
|
1999-09-12 16:54:56 +02:00
|
|
|
|
rld[operand_reloadnum[i]].inc
|
1999-09-12 03:51:28 +02:00
|
|
|
|
= GET_MODE_SIZE (GET_MODE (recog_data.operand[i]));
|
1993-03-29 13:27:52 +02:00
|
|
|
|
|
|
|
|
|
/* If this operand is an output, we will have made any
|
|
|
|
|
reloads for its address as RELOAD_FOR_OUTPUT_ADDRESS, but
|
|
|
|
|
now we are treating part of the operand as an input, so
|
|
|
|
|
we must change these to RELOAD_FOR_INPUT_ADDRESS. */
|
|
|
|
|
|
1994-01-24 02:11:18 +01:00
|
|
|
|
if (modified[i] == RELOAD_WRITE)
|
1997-02-03 19:04:00 +01:00
|
|
|
|
{
|
|
|
|
|
for (j = 0; j < n_reloads; j++)
|
|
|
|
|
{
|
1999-09-12 16:54:56 +02:00
|
|
|
|
if (rld[j].opnum == i)
|
1997-02-03 19:04:00 +01:00
|
|
|
|
{
|
1999-09-12 16:54:56 +02:00
|
|
|
|
if (rld[j].when_needed == RELOAD_FOR_OUTPUT_ADDRESS)
|
|
|
|
|
rld[j].when_needed = RELOAD_FOR_INPUT_ADDRESS;
|
|
|
|
|
else if (rld[j].when_needed
|
1997-02-03 19:04:00 +01:00
|
|
|
|
== RELOAD_FOR_OUTADDR_ADDRESS)
|
1999-09-12 16:54:56 +02:00
|
|
|
|
rld[j].when_needed = RELOAD_FOR_INPADDR_ADDRESS;
|
1997-02-03 19:04:00 +01:00
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
1992-02-28 11:23:25 +01:00
|
|
|
|
}
|
|
|
|
|
else if (goal_alternative_matched[i] == -1)
|
1998-06-29 23:40:49 +02:00
|
|
|
|
{
|
|
|
|
|
operand_reloadnum[i]
|
|
|
|
|
= push_reload ((modified[i] != RELOAD_WRITE
|
1999-09-12 03:51:28 +02:00
|
|
|
|
? recog_data.operand[i] : 0),
|
|
|
|
|
(modified[i] != RELOAD_READ
|
|
|
|
|
? recog_data.operand[i] : 0),
|
1998-06-29 23:40:49 +02:00
|
|
|
|
(modified[i] != RELOAD_WRITE
|
1999-09-12 03:51:28 +02:00
|
|
|
|
? recog_data.operand_loc[i] : 0),
|
1998-06-29 23:40:49 +02:00
|
|
|
|
(modified[i] != RELOAD_READ
|
1999-09-12 03:51:28 +02:00
|
|
|
|
? recog_data.operand_loc[i] : 0),
|
1998-06-29 23:40:49 +02:00
|
|
|
|
(enum reg_class) goal_alternative[i],
|
|
|
|
|
(modified[i] == RELOAD_WRITE
|
|
|
|
|
? VOIDmode : operand_mode[i]),
|
|
|
|
|
(modified[i] == RELOAD_READ
|
|
|
|
|
? VOIDmode : operand_mode[i]),
|
|
|
|
|
(insn_code_number < 0 ? 0
|
1999-09-12 14:46:08 +02:00
|
|
|
|
: insn_data[insn_code_number].operand[i].strict_low),
|
1998-06-29 23:40:49 +02:00
|
|
|
|
0, i, operand_type[i]);
|
|
|
|
|
}
|
1992-02-28 11:23:25 +01:00
|
|
|
|
/* In a matching pair of operands, one must be input only
|
|
|
|
|
and the other must be output only.
|
|
|
|
|
Pass the input operand as IN and the other as OUT. */
|
|
|
|
|
else if (modified[i] == RELOAD_READ
|
|
|
|
|
&& modified[goal_alternative_matched[i]] == RELOAD_WRITE)
|
|
|
|
|
{
|
|
|
|
|
operand_reloadnum[i]
|
1999-09-12 03:51:28 +02:00
|
|
|
|
= push_reload (recog_data.operand[i],
|
|
|
|
|
recog_data.operand[goal_alternative_matched[i]],
|
|
|
|
|
recog_data.operand_loc[i],
|
|
|
|
|
recog_data.operand_loc[goal_alternative_matched[i]],
|
1992-02-28 11:23:25 +01:00
|
|
|
|
(enum reg_class) goal_alternative[i],
|
|
|
|
|
operand_mode[i],
|
|
|
|
|
operand_mode[goal_alternative_matched[i]],
|
1993-03-29 13:27:52 +02:00
|
|
|
|
0, 0, i, RELOAD_OTHER);
|
1992-02-28 11:23:25 +01:00
|
|
|
|
operand_reloadnum[goal_alternative_matched[i]] = output_reloadnum;
|
|
|
|
|
}
|
|
|
|
|
else if (modified[i] == RELOAD_WRITE
|
|
|
|
|
&& modified[goal_alternative_matched[i]] == RELOAD_READ)
|
|
|
|
|
{
|
|
|
|
|
operand_reloadnum[goal_alternative_matched[i]]
|
1999-09-12 03:51:28 +02:00
|
|
|
|
= push_reload (recog_data.operand[goal_alternative_matched[i]],
|
|
|
|
|
recog_data.operand[i],
|
|
|
|
|
recog_data.operand_loc[goal_alternative_matched[i]],
|
|
|
|
|
recog_data.operand_loc[i],
|
1992-02-28 11:23:25 +01:00
|
|
|
|
(enum reg_class) goal_alternative[i],
|
|
|
|
|
operand_mode[goal_alternative_matched[i]],
|
|
|
|
|
operand_mode[i],
|
1993-03-29 13:27:52 +02:00
|
|
|
|
0, 0, i, RELOAD_OTHER);
|
1992-02-28 11:23:25 +01:00
|
|
|
|
operand_reloadnum[i] = output_reloadnum;
|
|
|
|
|
}
|
|
|
|
|
else if (insn_code_number >= 0)
|
|
|
|
|
abort ();
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
error_for_asm (insn, "inconsistent operand constraints in an `asm'");
|
|
|
|
|
/* Avoid further trouble with this insn. */
|
alias.c: Change all uses of gen_rtx(FOO...) to gen_rtx_FOO...
* alias.c: Change all uses of gen_rtx(FOO...) to gen_rtx_FOO;
change gen_rtx(expr...) to gen_rtx_fmt_foo(expr...).
* caller-save.c, calls.c, combine.c, cse.c: Likewise.
* dwarf2out.c, except.c, explow.c, expmed.c, expr.c: Likewise.
* final.c, flow.c, function.c, genpeep.c, haifa-sched.c: Likewise.
* halfpic.c, integrate.c, jump.c, local-alloc.c, loop.c: Likewise.
* profile.c, recog.c, reg-stack.c, regclass.c, regmove.c: Likewise.
* reload.c, reload1.c, reorg.c, sched.c, stmt.c, stupid.c: Likewise.
* unroll.c, varasm.c: Likewise.
* config/alpha/alpha.c, config/alpha/alpha.md: Likewise.
From-SVN: r17357
1998-01-15 00:10:50 +01:00
|
|
|
|
PATTERN (insn) = gen_rtx_USE (VOIDmode, const0_rtx);
|
1992-02-28 11:23:25 +01:00
|
|
|
|
n_reloads = 0;
|
Fix consistency problems with reg_equiv_{mem,address};
Improve reload inheritance;
* reload.c (reload_out_reg): New variable.
(loc_mentioned_in_p, remove_address_replacements): New functions.
(remove_replacements): Deleted.
(push_reload): Set reload_out_reg[i].
When merging, also set reload_{in,out}_reg[i], and remove
duplicate address reloads.
(combine_reloads): Copy reload_out_reg[i].
(find_reloads): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
Include *recog_operand_loc in commutativity operand changes.
Generate optional output reloads.
Delete reference to n_memlocs. Don't set *recog_operand_loc before
processing operands. Call make_memloc in reg_equiv_address code.
Set *recog_operand_loc only after processing operands, and only
if replace is true. Return a value.
When changing address reload types for operands that didn't get
reloaded, use RELOAD_FOR_OPADDR_ADDRESS for
RELOAD_FOR_INPADDR_ADDRESS / RELOAD_FOR_OUTADDR_ADDRESS reloads.
Don't emit USEs for pseudo SUBREGs when not replacing.
(find_reloads_address): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
(find_reloads_toplev): Likewise.
Call make_memloc in reg_equiv_address code.
(debug_reload_to_stream): Add code to output reload_out_reg.
(make_memloc): Delete local variable i, ifdefed out code, and
references to memlocs and n_memlocs.
(memlocs, n_memlocs): Delete.
(push_secondary_reload): Clear reload_out_reg.
(find_reloads_address_1): Provide memrefloc argument to all calls
to find_reloads_address.
In AUTO_INC code, handle non-directly addressable equivalences properly.
* reload.h (reload_out_reg, num_not_at_initial_offset): Declare.
(find_reloads): Add return type.
(remove_address_replacements, deallocate_reload_reg): Declare.
* reload1.c (num_not_at_initial_offset): No longer static.
(delete_address_reloads, delete_address_reloads_1): Likewise.
(deallocate_reload_reg): New function.
(spill_reg_stored_to): New array.
(eliminate_regs): Don't substitute from reg_equiv_memory_loc.
(eliminate_regs_in_insn): Move assignments of previous_offset and
max_offset fields, and recalculation of num_not_at_initial_offset
into new static function:
(update_eliminable_offsets) .
(reload_as_needed): Call update_eliminable_offsetss after calling
find_reloads.
Call forget_old_reloads_1 with contents of reloaded auto_inc
expressions if the actual addressing can't be changed to match the
auto_inc.
(choose_reload_regs): For inheritance, replace
reload_reg_free_before_p test with reload_reg_ions.
(emit_reload_insns): If reload_in is a MEM, set OLD to
reload_in_reg[j].
Don't reload directly from oldequiv; if it's a pseudo with a
stack slot, use reload_in[j].
Check that reload_in_reg[j] is a MEM before replacing reload_in
from reg_reloaded_contents.
Include non-spill registers in reload inheritance processing.
Also try to use reload_out_reg to set spill_reg_store /
reg_last_reload_reg.
In code to set new_spill_reg_store, use single_set to find out if
there is a single set.
Add code that allows to delete optional output reloads.
Add code to allow deletion of output reloads that use no spill reg.
At the end, set reload_override_in to oldequiv.
Also call delete_output_reload if reload_out_reg is equal to old
in oldequiv code.
Add code to call delete_output_reload for stores with no matching load.
Set / use spill_reg_stored_to.
Handle case where secondary output reload uses a temporary, but
actual store isn't found.
When looking for a store of a value not loaded in order to call
delete_output_reload, count_occurences should return 0 for no
loads; but discount inherited input reloadill_reg_stored_to.
Do checks for extra uses of REG. Changed all
callers.
Use delete_address_reloads.
(reload): Take return value of find_reloads into account.
If a no-op set needs more than one reload, delete it.
(reload_reg_free_before_p): RELOAD_FOR_INPUT
can ignore RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS
for the same operand.
(clear_reload_reg_in_use): Check for other reloads that keep a
register in use.
(reload_reg_free_for_value_p): handle RELOAD_FOR_OPERAND_ADDRESS /
RELOAD_FOR_OPADDR_ADDR.
Take into account when an address address reload is only needed
for the address reload we are considering.
(count_occurrences): Use rtx_equal_p for MEMs.
(inc_for_reload): Return instruction that stores into RELOADREG.
New argument two, IN, and rtx. Changed all callers.
(calculate_needs_all_insns, reload_as_needed):
Don't clear after_call for a CLOBBER.
Keep track of how many hard registers need to be copied from
after_call, and don't clear after_call before we have seen
that much copies, or we see a different instruction.
From-SVN: r23143
1998-10-16 21:54:38 +02:00
|
|
|
|
return 0;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
else if (goal_alternative_matched[i] < 0
|
|
|
|
|
&& goal_alternative_matches[i] < 0
|
|
|
|
|
&& optimize)
|
|
|
|
|
{
|
1999-09-01 16:30:35 +02:00
|
|
|
|
/* For each non-matching operand that's a MEM or a pseudo-register
|
1992-02-28 11:23:25 +01:00
|
|
|
|
that didn't get a hard register, make an optional reload.
|
|
|
|
|
This may get done even if the insn needs no reloads otherwise. */
|
1993-03-29 13:27:52 +02:00
|
|
|
|
|
1999-09-12 03:51:28 +02:00
|
|
|
|
rtx operand = recog_data.operand[i];
|
1993-03-29 13:27:52 +02:00
|
|
|
|
|
1992-02-28 11:23:25 +01:00
|
|
|
|
while (GET_CODE (operand) == SUBREG)
|
Use byte offsets in SUBREGs instead of words.
2001-04-03 Jakub Jelinek <jakub@redhat.com>
David S. Miller <davem@pierdol.cobaltmicro.com>
Andrew MacLeod <amacleod@redhat.com>
Use byte offsets in SUBREGs instead of words.
* alias.c (nonlocal_mentioned_p): Use subreg_regno function.
* caller-save.c (mark_set_regs): Change callers of subreg_hard_regno
to pass new argument.
(add_stored_regs): Use subreg_regno_offset function.
* calls.c (expand_call): For non-paradoxical SUBREG take endianess
into account.
(precompute_arguments): Use gen_lowpart_SUBREG.
* combine.c (try_combine): Replace explicit XEXP with SUBREG_REG.
(combine_simplify_rtx): Rework to use SUBREG_BYTE.
(simplify_set): Rework to use SUBREG_BYTE.
(expand_field_assignment): Use SUBREG_BYTE.
(make_extraction): Use SUBREG_BYTE.
(if_then_else_cond): Use SUBREG_BYTE.
(apply_distributive_law): Use SUBREG_BYTE and fixup subreg comments.
(gen_lowpart_for_combine): Compute full byte offset.
* cse.c (mention_regs): Use SUBREG_BYTE.
(remove_invalid_subreg_refs): Rework to use SUBREG_BYTE.
(canon_hash): Use SUBREG_BYTE.
(fold_rtx): Pass SUBREG_BYTE div UNITS_PER_WORD to operand_subword.
(gen_lowpart_if_possible): Formatting.
* dbxout.c (dbxout_symbol_location): Compute SUBREG hard regnos
correctly.
* dwarf2out.c (is_pseudo_reg): Fixup explicit XEXP into SUBREG_REG
(mem_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
(loc_descriptor): Fixup explicit XEXP into SUBREG_REG
* dwarfout.c (is_pseudo_reg): Fixup explicit XEXP into SUBREG_REG
(output_mem_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
(output_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
* emit-rtl.c (gen_rtx_SUBREG): New function, used to verify
certain invariants about SUBREGs the compiler creates.
(gen_lowpart_SUBREG): New function.
(subreg_hard_regno): New function to get the final register number.
(gen_lowpart_common): Use SUBREG_BYTE.
(gen_imagpart): Spacing nits.
(subreg_realpart_p): Use SUBREG_BYTE.
(gen_highpart): Use SUBREG_BYTE.
(subreg_lowpart_p): Always compute endian corrected goal offset,
even at the byte level, then compare against that.
(constant_subword): New function, pulled out all constant cases
from operand_subword and changed second argument name to offset.
(operand_subword): Detect non REG/SUBREG/CONCAT/MEM cases early
and call constant_subword to do the work. Return const0_rtx if
looking for a word outside of OP.
(operand_subword_force): Change second arg name to offset.
* expmed.c (store_bit_field): Use SUBREG_BYTE.
(store_split_bit_field): Use SUBREG_BYTE.
(extract_bit_field): Use SUBREG_BYTE.
(extract_split_bit_field): Use SUBREG_BYTE.
(expand_shift): Use SUBREG_BYTE.
* expr.c (store_expr, expand_expr): Use gen_lowpart_SUBREG.
* final.c (alter_subreg) Use subreg_hard_regno and SUBREG_BYTE.
* flow.c (set_noop_p): Use SUBREG_BYTE.
(mark_set_1): Remove ALTER_HARD_SUBREG. Use subreg_regno_offset instead.
* function.c (fixup_var_refs_1): Fixup explicit XEXP into a SUBREG_REG.
(fixup_memory_subreg): Use SUBREG_BYTE and remove byte endian
correction code.
(optimize_bit_field): Use SUBREG_BYTE.
(purge_addressof_1): Use SUBREG_BYTE.
(purge_single_hard_subreg_set): Use subreg_regno_offset function.
(assign_params): Mark arguments SUBREG_PROMOTED_VAR_P if they are
actually promoted by the caller and PROMOTE_FOR_CALLS_ONLY is true.
* gengenrtl.c (special_rtx): Add SUBREG.
* global.c (mark_reg_store): Use SUBREG_BYTE.
(set_preference): Rework to use subreg_regno_offset and SUBREG_BYTE.
* ifcvt (noce_emit_move_insn): Use SUBREG_BYTE.
* integrate.c (copy_rtx_and_substitute): Use SUBREG_BYTE and make sure
final byte offset is congruent to subreg's mode size.
(subst_constants): Use SUBREG_BYTE.
(mark_stores): Use subreg_regno_offset function.
* jump.c (rtx_renumbered_equal_p, true_regnum): Use subreg_regno_offset
function and SUBREG_BYTE.
* local-alloc.c (combine_regs): Use subreg_regno_offset function.
(reg_is_born): Use subreg_hard_regno.
* recog.c (valid_replace_rtx_1): Use SUBREG_BYTE and remove byte
endian correction code. Don't combine subregs unless resulting
offset aligns with type. Fix subreg constant extraction for DImode.
Simplify SUBREG of VOIDmode CONST_DOUBLE.
(general_operand): Remove dead mode_altering_drug code.
(indirect_operand): Use SUBREG_BYTE.
(constrain_operands): Use subreg_regno_offset function.
* reg-stack.c (get_true_reg): Use subreg_regno_offset function.
* regmove.c (regmove_optimize): Use SUBREG_BYTE.
(optimize_reg_copy_3): Use gen_lowpart_SUBREG.
* regs.h (REG_SIZE): Allow target to override.
(REGMODE_NATURAL_SIZE): New macro which target can override.
* reload.c (reload_inner_reg_of_subreg): subreg_regno should be used
on the entire subreg rtx.
(push_reload): Use SUBREG_BYTE in comments and code.
(find_dummy_reload): Use subreg_regno_offset. Only adjust offsets
for hard registers inside subregs.
(operands_match_p): Use subreg_regno_offset.
(find_reloads): Use SUBREG_BYTE and only advance offset for subregs
containing hard regs.
(find_reload_toplev): Use SUBREG_BYTE. Remove byte endian
corrections when fixing up MEM subregs.
(find_reloads_address_1): Use SUBREG_BYTE, subreg_regno, and
subreg_regno_offset where appropriate.
(find_reloads_subreg_address): Use SUBREG_BYTE. Remove
byte endian corrections when fixing up MEM subregs.
(subst_reloads): When combining two subregs, make sure final
offset is congruent to subreg's mode size.
(find_replacement): Use SUBREG_BYTE and subreg_regno_offset.
(refers_to_regno_for_reload_p): Use subreg_regno.
(reg_overlap_mentioned_for_reload_p): Use subreg_regno_offset.
* reload1.c (eliminate_regs) Use SUBREG_BYTE. Remove byte endian
correction code for memory subreg fixups.
(forget_old_reload_1): Use subreg_regno_offset.
(choose_reload_regs): Use subreg_regno.
(emit_input_reload_insns): Use SUBREG_BYTE.
(reload_combine_note_store): Use subreg_regno_offset.
(move2add_note_store): Use subreg_regno_offset.
* resource.c (update_live_status, mark_referenced_resources): Use
subreg_regno function.
(mark_set_resources): Use subreg_regno function.
* rtl.h (SUBREG_WORD): Rename to SUBREG_BYTE.
(subreg_regno_offset, subreg_regno): Define prototypes.
(subreg_hard_regno, constant_subword, gen_rtx_SUBREG): Newi functions.
(gen_lowpart_SUBREG): Add prototype.
* rtl.texi (subreg): Update to reflect new byte offset representation.
Add mentioning of the effect that BYTES_BIG_ENDIAN has on subregs now.
* rtlanal.c (refers_to_regno_p): Use subreg_regno.
(reg_overlap_mentioned_p): Use subreg_regno.
(replace_regs); Make sure final offset of combined subreg is
congruent to size of subreg's mode.
(subreg_regno_offset): New function.
(subreg_regno): New function.
* sched-vis.c (print_value): Change SUBREG_WORD to SUBREG_BYTE.
* sdbout.c (sdbout_symbol): Compute offset using alter_subreg.
* stmt.c (expand_anon_union_decl): Use gen_lowpart_SUBREG.
* tm.texi (ALTER_HARD_SUBREG): Remove, it is now dead.
(SUBREG_REGNO_OFFSET): Describe SUBREG_REGNO_OFFSET overrides.
* config/a29k/a29k.c (gpc_reg_operand): Use subreg_regno.
(a29k_get_reloaded_address): Use SUBREG_BYTE.
(print_operand): Use SUBREG_BYTE.
* config/alpha/alpha.c (print_operand_address): Use SUBREG_BYTE.
* config/arm/arm.c (arm_reload_in_hi): Use SUBREG_BYTE.
(arm_reload_out_hi): Use SUBREG_BYTE.
* config/d30v/d30v.c (d30v_split_double): Use subreg_regno_offset
instead of SUBREG_WORD.
(d30v_print_operand_memory_reference): Use subreg_regno_offset.
* config/dsp16xx/dsp16xx.md (extendqihi2, zero_extendqihi2): Fix
SUBREG creation to use byte offset.
* config/h8300/h8300.md (Unnamed HImode zero extraction and 16bit
inverted load insns): Fix explicit rtl subregs to use byte
offsets.
* config/i370/i370.md (cmpstrsi, movstrsi, mulsi3, divsi3,
udivsi3, umodsi3): Generate SUBREGs with byte offsets.
* config/i860/i860.c (single_insn_src_p): Use SUBREG_BYTE.
* config/i860/i860.md (mulsi3_big): Fixup explicit SUBREGs in rtl
to use byte offsets.
(unnamed fmlow.dd insn): Fixup SUBREGS to use byte offsets.
* config/i960/i960.md (extendhisi2): Generate SUBREGs with byte
offsets, also make sure it is congruent to SUBREG's mode size.
(extendqisi2, extendqihi2, zero_extendhisi2, zero_extendqisi2,
unnamed ldob insn): Generate SUBREGs with byte offset.
(zero_extendqihi2): SUBREG's are byte offsets.
* config/m68hc11/m68hc11.c (m68hc11_gen_lowpart): Use SUBREG_BYTE.
(m68hc11_gen_highpart): Use SUBREG_BYTE.
* config/m68k/m68k.md (zero_extendhisi2, zero_extendqihi2,
zero-extendqisi2): Generate SUBREGs with byte offset.
(umulsidi3, mulsidi3, subreghi1ashrdi_const32,
subregsi1ashrdi_const32, subreg1lshrdi_const32): Fixup explicit
subregs in rtl to use byte offsets.
* config/m88k/m88k.md (extendsidi2): fixup subregs to use byte offset.
* config/mips/mips.c (mips_move_1word): Use subreg_regno_offset.
(mips_move_2words): Use subreg_regno_offset.
(mips_secondary_reload_class): Use subreg_regno_offset.
* config/mips/mips.md (DImode plus, minus, move, and logical op
splits): Fixup explicit subregs in rtl to use byte offsets.
* config/mn10200/mn10200.c (print_operand): Use subreg_regno function.
* config/mn10300/mn10300.c (print_operand): Use subreg_regno function.
* config/ns32k/ns32k.md (udivmoddisi4): Fix explicit subregs in
rtl to use byte offsets.
* config/pa/pa.c (emit_move_sequence): Use SUBREG_BYTE.
* config/pa/pa.md (floatunssisf2, floatunssidf2, mulsi3): fix explicit
subregs to use byte offsets.
* config/pdp11/pdp11.md (zero_extendhisi2, modhi3, modhi3+1):
Fixup explicit subregs in rtl to use byte offsets.
* config/romp/romp.c (memory_offset_in_range_p): Use SUBREG_BYTE
and remove byte endian correction code.
* config/sh/sh.c (output_movedouble): Use subreg_regno.
(gen_ashift_hi): Use SUBREG_BYTE.
(regs_used): Use subreg_regno_offset.
(machine_dependent_reorg): Use subreg_regno_offset.
* config/sh/sh.h (INDEX_REGISTER_RTX_P): Use SUBREG_BYTE.
* config/sh/sh.md (DImode and DFmode move splits): Use subreg_regno.
(movdf_i4): Subregs are byte offsets now.
* config/sparc/sparc.c (ultra_find_type): Use SUBREG_BYTE.
* config/sparc/sparc.h (ALTER_HARD_SUBREG): Removed.
(REGMODE_NATURAL_SIZE): Override.
(REG_SIZE): For SUBREG check float mode on SUBREG_REG's mode.
* config/sparc/sparc.md (TFmode move splits): Generate SUBREGs
with byte offsets.
(zero_extendhisi2, zero_extendqidi2_insn, extendhisi2,
extendqihi2, sign_extendqihi2_insn, sign_extendqisi2_insn,
extendqidi2): Generate SUBREGs with byte offsets, also make sure
it is congruent to SUBREG's mode size.
(smulsi3_highpart_v8plus): Fix explicit subregs in rtl to use byte
offsets.
(cmp_siqi_trunc, cmp_siqi_trunc_set, cmp_diqi_trunc,
cmp_diqi_trunc_set, lshrdi3_v8plus+1, lshrdi3_v8plus+2,
lshrdi3_v8plus+3, lshrdi3_v8plus+4): Use proper
SUBREG_BYTE offset for non-paradoxical subregs in patterns.
* config/v850/v850.c (print_operand, output_move_double): Use
subreg_regno function.
Co-Authored-By: Andrew MacLeod <amacleod@redhat.com>
Co-Authored-By: David S. Miller <davem@pierdol.cobaltmicro.com>
From-SVN: r41058
2001-04-03 17:06:12 +02:00
|
|
|
|
operand = SUBREG_REG (operand);
|
1993-03-29 13:27:52 +02:00
|
|
|
|
if ((GET_CODE (operand) == MEM
|
|
|
|
|
|| (GET_CODE (operand) == REG
|
|
|
|
|
&& REGNO (operand) >= FIRST_PSEUDO_REGISTER))
|
Fix consistency problems with reg_equiv_{mem,address};
Improve reload inheritance;
* reload.c (reload_out_reg): New variable.
(loc_mentioned_in_p, remove_address_replacements): New functions.
(remove_replacements): Deleted.
(push_reload): Set reload_out_reg[i].
When merging, also set reload_{in,out}_reg[i], and remove
duplicate address reloads.
(combine_reloads): Copy reload_out_reg[i].
(find_reloads): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
Include *recog_operand_loc in commutativity operand changes.
Generate optional output reloads.
Delete reference to n_memlocs. Don't set *recog_operand_loc before
processing operands. Call make_memloc in reg_equiv_address code.
Set *recog_operand_loc only after processing operands, and only
if replace is true. Return a value.
When changing address reload types for operands that didn't get
reloaded, use RELOAD_FOR_OPADDR_ADDRESS for
RELOAD_FOR_INPADDR_ADDRESS / RELOAD_FOR_OUTADDR_ADDRESS reloads.
Don't emit USEs for pseudo SUBREGs when not replacing.
(find_reloads_address): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
(find_reloads_toplev): Likewise.
Call make_memloc in reg_equiv_address code.
(debug_reload_to_stream): Add code to output reload_out_reg.
(make_memloc): Delete local variable i, ifdefed out code, and
references to memlocs and n_memlocs.
(memlocs, n_memlocs): Delete.
(push_secondary_reload): Clear reload_out_reg.
(find_reloads_address_1): Provide memrefloc argument to all calls
to find_reloads_address.
In AUTO_INC code, handle non-directly addressable equivalences properly.
* reload.h (reload_out_reg, num_not_at_initial_offset): Declare.
(find_reloads): Add return type.
(remove_address_replacements, deallocate_reload_reg): Declare.
* reload1.c (num_not_at_initial_offset): No longer static.
(delete_address_reloads, delete_address_reloads_1): Likewise.
(deallocate_reload_reg): New function.
(spill_reg_stored_to): New array.
(eliminate_regs): Don't substitute from reg_equiv_memory_loc.
(eliminate_regs_in_insn): Move assignments of previous_offset and
max_offset fields, and recalculation of num_not_at_initial_offset
into new static function:
(update_eliminable_offsets) .
(reload_as_needed): Call update_eliminable_offsetss after calling
find_reloads.
Call forget_old_reloads_1 with contents of reloaded auto_inc
expressions if the actual addressing can't be changed to match the
auto_inc.
(choose_reload_regs): For inheritance, replace
reload_reg_free_before_p test with reload_reg_ions.
(emit_reload_insns): If reload_in is a MEM, set OLD to
reload_in_reg[j].
Don't reload directly from oldequiv; if it's a pseudo with a
stack slot, use reload_in[j].
Check that reload_in_reg[j] is a MEM before replacing reload_in
from reg_reloaded_contents.
Include non-spill registers in reload inheritance processing.
Also try to use reload_out_reg to set spill_reg_store /
reg_last_reload_reg.
In code to set new_spill_reg_store, use single_set to find out if
there is a single set.
Add code that allows to delete optional output reloads.
Add code to allow deletion of output reloads that use no spill reg.
At the end, set reload_override_in to oldequiv.
Also call delete_output_reload if reload_out_reg is equal to old
in oldequiv code.
Add code to call delete_output_reload for stores with no matching load.
Set / use spill_reg_stored_to.
Handle case where secondary output reload uses a temporary, but
actual store isn't found.
When looking for a store of a value not loaded in order to call
delete_output_reload, count_occurences should return 0 for no
loads; but discount inherited input reloadill_reg_stored_to.
Do checks for extra uses of REG. Changed all
callers.
Use delete_address_reloads.
(reload): Take return value of find_reloads into account.
If a no-op set needs more than one reload, delete it.
(reload_reg_free_before_p): RELOAD_FOR_INPUT
can ignore RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS
for the same operand.
(clear_reload_reg_in_use): Check for other reloads that keep a
register in use.
(reload_reg_free_for_value_p): handle RELOAD_FOR_OPERAND_ADDRESS /
RELOAD_FOR_OPADDR_ADDR.
Take into account when an address address reload is only needed
for the address reload we are considering.
(count_occurrences): Use rtx_equal_p for MEMs.
(inc_for_reload): Return instruction that stores into RELOADREG.
New argument two, IN, and rtx. Changed all callers.
(calculate_needs_all_insns, reload_as_needed):
Don't clear after_call for a CLOBBER.
Keep track of how many hard registers need to be copied from
after_call, and don't clear after_call before we have seen
that much copies, or we see a different instruction.
From-SVN: r23143
1998-10-16 21:54:38 +02:00
|
|
|
|
/* If this is only for an output, the optional reload would not
|
|
|
|
|
actually cause us to use a register now, just note that
|
|
|
|
|
something is stored here. */
|
|
|
|
|
&& ((enum reg_class) goal_alternative[i] != NO_REGS
|
|
|
|
|
|| modified[i] == RELOAD_WRITE)
|
1993-03-29 13:27:52 +02:00
|
|
|
|
&& ! no_input_reloads
|
Fix consistency problems with reg_equiv_{mem,address};
Improve reload inheritance;
* reload.c (reload_out_reg): New variable.
(loc_mentioned_in_p, remove_address_replacements): New functions.
(remove_replacements): Deleted.
(push_reload): Set reload_out_reg[i].
When merging, also set reload_{in,out}_reg[i], and remove
duplicate address reloads.
(combine_reloads): Copy reload_out_reg[i].
(find_reloads): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
Include *recog_operand_loc in commutativity operand changes.
Generate optional output reloads.
Delete reference to n_memlocs. Don't set *recog_operand_loc before
processing operands. Call make_memloc in reg_equiv_address code.
Set *recog_operand_loc only after processing operands, and only
if replace is true. Return a value.
When changing address reload types for operands that didn't get
reloaded, use RELOAD_FOR_OPADDR_ADDRESS for
RELOAD_FOR_INPADDR_ADDRESS / RELOAD_FOR_OUTADDR_ADDRESS reloads.
Don't emit USEs for pseudo SUBREGs when not replacing.
(find_reloads_address): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
(find_reloads_toplev): Likewise.
Call make_memloc in reg_equiv_address code.
(debug_reload_to_stream): Add code to output reload_out_reg.
(make_memloc): Delete local variable i, ifdefed out code, and
references to memlocs and n_memlocs.
(memlocs, n_memlocs): Delete.
(push_secondary_reload): Clear reload_out_reg.
(find_reloads_address_1): Provide memrefloc argument to all calls
to find_reloads_address.
In AUTO_INC code, handle non-directly addressable equivalences properly.
* reload.h (reload_out_reg, num_not_at_initial_offset): Declare.
(find_reloads): Add return type.
(remove_address_replacements, deallocate_reload_reg): Declare.
* reload1.c (num_not_at_initial_offset): No longer static.
(delete_address_reloads, delete_address_reloads_1): Likewise.
(deallocate_reload_reg): New function.
(spill_reg_stored_to): New array.
(eliminate_regs): Don't substitute from reg_equiv_memory_loc.
(eliminate_regs_in_insn): Move assignments of previous_offset and
max_offset fields, and recalculation of num_not_at_initial_offset
into new static function:
(update_eliminable_offsets) .
(reload_as_needed): Call update_eliminable_offsetss after calling
find_reloads.
Call forget_old_reloads_1 with contents of reloaded auto_inc
expressions if the actual addressing can't be changed to match the
auto_inc.
(choose_reload_regs): For inheritance, replace
reload_reg_free_before_p test with reload_reg_ions.
(emit_reload_insns): If reload_in is a MEM, set OLD to
reload_in_reg[j].
Don't reload directly from oldequiv; if it's a pseudo with a
stack slot, use reload_in[j].
Check that reload_in_reg[j] is a MEM before replacing reload_in
from reg_reloaded_contents.
Include non-spill registers in reload inheritance processing.
Also try to use reload_out_reg to set spill_reg_store /
reg_last_reload_reg.
In code to set new_spill_reg_store, use single_set to find out if
there is a single set.
Add code that allows to delete optional output reloads.
Add code to allow deletion of output reloads that use no spill reg.
At the end, set reload_override_in to oldequiv.
Also call delete_output_reload if reload_out_reg is equal to old
in oldequiv code.
Add code to call delete_output_reload for stores with no matching load.
Set / use spill_reg_stored_to.
Handle case where secondary output reload uses a temporary, but
actual store isn't found.
When looking for a store of a value not loaded in order to call
delete_output_reload, count_occurences should return 0 for no
loads; but discount inherited input reloadill_reg_stored_to.
Do checks for extra uses of REG. Changed all
callers.
Use delete_address_reloads.
(reload): Take return value of find_reloads into account.
If a no-op set needs more than one reload, delete it.
(reload_reg_free_before_p): RELOAD_FOR_INPUT
can ignore RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS
for the same operand.
(clear_reload_reg_in_use): Check for other reloads that keep a
register in use.
(reload_reg_free_for_value_p): handle RELOAD_FOR_OPERAND_ADDRESS /
RELOAD_FOR_OPADDR_ADDR.
Take into account when an address address reload is only needed
for the address reload we are considering.
(count_occurrences): Use rtx_equal_p for MEMs.
(inc_for_reload): Return instruction that stores into RELOADREG.
New argument two, IN, and rtx. Changed all callers.
(calculate_needs_all_insns, reload_as_needed):
Don't clear after_call for a CLOBBER.
Keep track of how many hard registers need to be copied from
after_call, and don't clear after_call before we have seen
that much copies, or we see a different instruction.
From-SVN: r23143
1998-10-16 21:54:38 +02:00
|
|
|
|
/* An optional output reload might allow to delete INSN later.
|
|
|
|
|
We mustn't make in-out reloads on insns that are not permitted
|
|
|
|
|
output reloads.
|
|
|
|
|
If this is an asm, we can't delete it; we must not even call
|
|
|
|
|
push_reload for an optional output reload in this case,
|
|
|
|
|
because we can't be sure that the constraint allows a register,
|
|
|
|
|
and push_reload verifies the constraints for asms. */
|
1992-02-28 11:23:25 +01:00
|
|
|
|
&& (modified[i] == RELOAD_READ
|
Fix consistency problems with reg_equiv_{mem,address};
Improve reload inheritance;
* reload.c (reload_out_reg): New variable.
(loc_mentioned_in_p, remove_address_replacements): New functions.
(remove_replacements): Deleted.
(push_reload): Set reload_out_reg[i].
When merging, also set reload_{in,out}_reg[i], and remove
duplicate address reloads.
(combine_reloads): Copy reload_out_reg[i].
(find_reloads): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
Include *recog_operand_loc in commutativity operand changes.
Generate optional output reloads.
Delete reference to n_memlocs. Don't set *recog_operand_loc before
processing operands. Call make_memloc in reg_equiv_address code.
Set *recog_operand_loc only after processing operands, and only
if replace is true. Return a value.
When changing address reload types for operands that didn't get
reloaded, use RELOAD_FOR_OPADDR_ADDRESS for
RELOAD_FOR_INPADDR_ADDRESS / RELOAD_FOR_OUTADDR_ADDRESS reloads.
Don't emit USEs for pseudo SUBREGs when not replacing.
(find_reloads_address): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
(find_reloads_toplev): Likewise.
Call make_memloc in reg_equiv_address code.
(debug_reload_to_stream): Add code to output reload_out_reg.
(make_memloc): Delete local variable i, ifdefed out code, and
references to memlocs and n_memlocs.
(memlocs, n_memlocs): Delete.
(push_secondary_reload): Clear reload_out_reg.
(find_reloads_address_1): Provide memrefloc argument to all calls
to find_reloads_address.
In AUTO_INC code, handle non-directly addressable equivalences properly.
* reload.h (reload_out_reg, num_not_at_initial_offset): Declare.
(find_reloads): Add return type.
(remove_address_replacements, deallocate_reload_reg): Declare.
* reload1.c (num_not_at_initial_offset): No longer static.
(delete_address_reloads, delete_address_reloads_1): Likewise.
(deallocate_reload_reg): New function.
(spill_reg_stored_to): New array.
(eliminate_regs): Don't substitute from reg_equiv_memory_loc.
(eliminate_regs_in_insn): Move assignments of previous_offset and
max_offset fields, and recalculation of num_not_at_initial_offset
into new static function:
(update_eliminable_offsets) .
(reload_as_needed): Call update_eliminable_offsetss after calling
find_reloads.
Call forget_old_reloads_1 with contents of reloaded auto_inc
expressions if the actual addressing can't be changed to match the
auto_inc.
(choose_reload_regs): For inheritance, replace
reload_reg_free_before_p test with reload_reg_ions.
(emit_reload_insns): If reload_in is a MEM, set OLD to
reload_in_reg[j].
Don't reload directly from oldequiv; if it's a pseudo with a
stack slot, use reload_in[j].
Check that reload_in_reg[j] is a MEM before replacing reload_in
from reg_reloaded_contents.
Include non-spill registers in reload inheritance processing.
Also try to use reload_out_reg to set spill_reg_store /
reg_last_reload_reg.
In code to set new_spill_reg_store, use single_set to find out if
there is a single set.
Add code that allows to delete optional output reloads.
Add code to allow deletion of output reloads that use no spill reg.
At the end, set reload_override_in to oldequiv.
Also call delete_output_reload if reload_out_reg is equal to old
in oldequiv code.
Add code to call delete_output_reload for stores with no matching load.
Set / use spill_reg_stored_to.
Handle case where secondary output reload uses a temporary, but
actual store isn't found.
When looking for a store of a value not loaded in order to call
delete_output_reload, count_occurences should return 0 for no
loads; but discount inherited input reloadill_reg_stored_to.
Do checks for extra uses of REG. Changed all
callers.
Use delete_address_reloads.
(reload): Take return value of find_reloads into account.
If a no-op set needs more than one reload, delete it.
(reload_reg_free_before_p): RELOAD_FOR_INPUT
can ignore RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS
for the same operand.
(clear_reload_reg_in_use): Check for other reloads that keep a
register in use.
(reload_reg_free_for_value_p): handle RELOAD_FOR_OPERAND_ADDRESS /
RELOAD_FOR_OPADDR_ADDR.
Take into account when an address address reload is only needed
for the address reload we are considering.
(count_occurrences): Use rtx_equal_p for MEMs.
(inc_for_reload): Return instruction that stores into RELOADREG.
New argument two, IN, and rtx. Changed all callers.
(calculate_needs_all_insns, reload_as_needed):
Don't clear after_call for a CLOBBER.
Keep track of how many hard registers need to be copied from
after_call, and don't clear after_call before we have seen
that much copies, or we see a different instruction.
From-SVN: r23143
1998-10-16 21:54:38 +02:00
|
|
|
|
|| (! no_output_reloads && ! this_insn_is_asm)))
|
1992-02-28 11:23:25 +01:00
|
|
|
|
operand_reloadnum[i]
|
1999-09-12 03:51:28 +02:00
|
|
|
|
= push_reload ((modified[i] != RELOAD_WRITE
|
|
|
|
|
? recog_data.operand[i] : 0),
|
|
|
|
|
(modified[i] != RELOAD_READ
|
|
|
|
|
? recog_data.operand[i] : 0),
|
1993-03-29 13:27:52 +02:00
|
|
|
|
(modified[i] != RELOAD_WRITE
|
1999-09-12 03:51:28 +02:00
|
|
|
|
? recog_data.operand_loc[i] : 0),
|
1993-03-29 13:27:52 +02:00
|
|
|
|
(modified[i] != RELOAD_READ
|
1999-09-12 03:51:28 +02:00
|
|
|
|
? recog_data.operand_loc[i] : 0),
|
1992-02-28 11:23:25 +01:00
|
|
|
|
(enum reg_class) goal_alternative[i],
|
1993-03-29 13:27:52 +02:00
|
|
|
|
(modified[i] == RELOAD_WRITE
|
|
|
|
|
? VOIDmode : operand_mode[i]),
|
|
|
|
|
(modified[i] == RELOAD_READ
|
|
|
|
|
? VOIDmode : operand_mode[i]),
|
1992-02-28 11:23:25 +01:00
|
|
|
|
(insn_code_number < 0 ? 0
|
1999-09-12 14:46:08 +02:00
|
|
|
|
: insn_data[insn_code_number].operand[i].strict_low),
|
1993-03-29 13:27:52 +02:00
|
|
|
|
1, i, operand_type[i]);
|
1999-07-15 00:30:24 +02:00
|
|
|
|
/* If a memory reference remains (either as a MEM or a pseudo that
|
|
|
|
|
did not get a hard register), yet we can't make an optional
|
Fix consistency problems with reg_equiv_{mem,address};
Improve reload inheritance;
* reload.c (reload_out_reg): New variable.
(loc_mentioned_in_p, remove_address_replacements): New functions.
(remove_replacements): Deleted.
(push_reload): Set reload_out_reg[i].
When merging, also set reload_{in,out}_reg[i], and remove
duplicate address reloads.
(combine_reloads): Copy reload_out_reg[i].
(find_reloads): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
Include *recog_operand_loc in commutativity operand changes.
Generate optional output reloads.
Delete reference to n_memlocs. Don't set *recog_operand_loc before
processing operands. Call make_memloc in reg_equiv_address code.
Set *recog_operand_loc only after processing operands, and only
if replace is true. Return a value.
When changing address reload types for operands that didn't get
reloaded, use RELOAD_FOR_OPADDR_ADDRESS for
RELOAD_FOR_INPADDR_ADDRESS / RELOAD_FOR_OUTADDR_ADDRESS reloads.
Don't emit USEs for pseudo SUBREGs when not replacing.
(find_reloads_address): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
(find_reloads_toplev): Likewise.
Call make_memloc in reg_equiv_address code.
(debug_reload_to_stream): Add code to output reload_out_reg.
(make_memloc): Delete local variable i, ifdefed out code, and
references to memlocs and n_memlocs.
(memlocs, n_memlocs): Delete.
(push_secondary_reload): Clear reload_out_reg.
(find_reloads_address_1): Provide memrefloc argument to all calls
to find_reloads_address.
In AUTO_INC code, handle non-directly addressable equivalences properly.
* reload.h (reload_out_reg, num_not_at_initial_offset): Declare.
(find_reloads): Add return type.
(remove_address_replacements, deallocate_reload_reg): Declare.
* reload1.c (num_not_at_initial_offset): No longer static.
(delete_address_reloads, delete_address_reloads_1): Likewise.
(deallocate_reload_reg): New function.
(spill_reg_stored_to): New array.
(eliminate_regs): Don't substitute from reg_equiv_memory_loc.
(eliminate_regs_in_insn): Move assignments of previous_offset and
max_offset fields, and recalculation of num_not_at_initial_offset
into new static function:
(update_eliminable_offsets) .
(reload_as_needed): Call update_eliminable_offsetss after calling
find_reloads.
Call forget_old_reloads_1 with contents of reloaded auto_inc
expressions if the actual addressing can't be changed to match the
auto_inc.
(choose_reload_regs): For inheritance, replace
reload_reg_free_before_p test with reload_reg_ions.
(emit_reload_insns): If reload_in is a MEM, set OLD to
reload_in_reg[j].
Don't reload directly from oldequiv; if it's a pseudo with a
stack slot, use reload_in[j].
Check that reload_in_reg[j] is a MEM before replacing reload_in
from reg_reloaded_contents.
Include non-spill registers in reload inheritance processing.
Also try to use reload_out_reg to set spill_reg_store /
reg_last_reload_reg.
In code to set new_spill_reg_store, use single_set to find out if
there is a single set.
Add code that allows to delete optional output reloads.
Add code to allow deletion of output reloads that use no spill reg.
At the end, set reload_override_in to oldequiv.
Also call delete_output_reload if reload_out_reg is equal to old
in oldequiv code.
Add code to call delete_output_reload for stores with no matching load.
Set / use spill_reg_stored_to.
Handle case where secondary output reload uses a temporary, but
actual store isn't found.
When looking for a store of a value not loaded in order to call
delete_output_reload, count_occurences should return 0 for no
loads; but discount inherited input reloadill_reg_stored_to.
Do checks for extra uses of REG. Changed all
callers.
Use delete_address_reloads.
(reload): Take return value of find_reloads into account.
If a no-op set needs more than one reload, delete it.
(reload_reg_free_before_p): RELOAD_FOR_INPUT
can ignore RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS
for the same operand.
(clear_reload_reg_in_use): Check for other reloads that keep a
register in use.
(reload_reg_free_for_value_p): handle RELOAD_FOR_OPERAND_ADDRESS /
RELOAD_FOR_OPADDR_ADDR.
Take into account when an address address reload is only needed
for the address reload we are considering.
(count_occurrences): Use rtx_equal_p for MEMs.
(inc_for_reload): Return instruction that stores into RELOADREG.
New argument two, IN, and rtx. Changed all callers.
(calculate_needs_all_insns, reload_as_needed):
Don't clear after_call for a CLOBBER.
Keep track of how many hard registers need to be copied from
after_call, and don't clear after_call before we have seen
that much copies, or we see a different instruction.
From-SVN: r23143
1998-10-16 21:54:38 +02:00
|
|
|
|
reload, check if this is actually a pseudo register reference;
|
|
|
|
|
we then need to emit a USE and/or a CLOBBER so that reload
|
|
|
|
|
inheritance will do the right thing. */
|
1999-07-15 00:30:24 +02:00
|
|
|
|
else if (replace
|
|
|
|
|
&& (GET_CODE (operand) == MEM
|
|
|
|
|
|| (GET_CODE (operand) == REG
|
|
|
|
|
&& REGNO (operand) >= FIRST_PSEUDO_REGISTER
|
|
|
|
|
&& reg_renumber [REGNO (operand)] < 0)))
|
Fix consistency problems with reg_equiv_{mem,address};
Improve reload inheritance;
* reload.c (reload_out_reg): New variable.
(loc_mentioned_in_p, remove_address_replacements): New functions.
(remove_replacements): Deleted.
(push_reload): Set reload_out_reg[i].
When merging, also set reload_{in,out}_reg[i], and remove
duplicate address reloads.
(combine_reloads): Copy reload_out_reg[i].
(find_reloads): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
Include *recog_operand_loc in commutativity operand changes.
Generate optional output reloads.
Delete reference to n_memlocs. Don't set *recog_operand_loc before
processing operands. Call make_memloc in reg_equiv_address code.
Set *recog_operand_loc only after processing operands, and only
if replace is true. Return a value.
When changing address reload types for operands that didn't get
reloaded, use RELOAD_FOR_OPADDR_ADDRESS for
RELOAD_FOR_INPADDR_ADDRESS / RELOAD_FOR_OUTADDR_ADDRESS reloads.
Don't emit USEs for pseudo SUBREGs when not replacing.
(find_reloads_address): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
(find_reloads_toplev): Likewise.
Call make_memloc in reg_equiv_address code.
(debug_reload_to_stream): Add code to output reload_out_reg.
(make_memloc): Delete local variable i, ifdefed out code, and
references to memlocs and n_memlocs.
(memlocs, n_memlocs): Delete.
(push_secondary_reload): Clear reload_out_reg.
(find_reloads_address_1): Provide memrefloc argument to all calls
to find_reloads_address.
In AUTO_INC code, handle non-directly addressable equivalences properly.
* reload.h (reload_out_reg, num_not_at_initial_offset): Declare.
(find_reloads): Add return type.
(remove_address_replacements, deallocate_reload_reg): Declare.
* reload1.c (num_not_at_initial_offset): No longer static.
(delete_address_reloads, delete_address_reloads_1): Likewise.
(deallocate_reload_reg): New function.
(spill_reg_stored_to): New array.
(eliminate_regs): Don't substitute from reg_equiv_memory_loc.
(eliminate_regs_in_insn): Move assignments of previous_offset and
max_offset fields, and recalculation of num_not_at_initial_offset
into new static function:
(update_eliminable_offsets) .
(reload_as_needed): Call update_eliminable_offsetss after calling
find_reloads.
Call forget_old_reloads_1 with contents of reloaded auto_inc
expressions if the actual addressing can't be changed to match the
auto_inc.
(choose_reload_regs): For inheritance, replace
reload_reg_free_before_p test with reload_reg_ions.
(emit_reload_insns): If reload_in is a MEM, set OLD to
reload_in_reg[j].
Don't reload directly from oldequiv; if it's a pseudo with a
stack slot, use reload_in[j].
Check that reload_in_reg[j] is a MEM before replacing reload_in
from reg_reloaded_contents.
Include non-spill registers in reload inheritance processing.
Also try to use reload_out_reg to set spill_reg_store /
reg_last_reload_reg.
In code to set new_spill_reg_store, use single_set to find out if
there is a single set.
Add code that allows to delete optional output reloads.
Add code to allow deletion of output reloads that use no spill reg.
At the end, set reload_override_in to oldequiv.
Also call delete_output_reload if reload_out_reg is equal to old
in oldequiv code.
Add code to call delete_output_reload for stores with no matching load.
Set / use spill_reg_stored_to.
Handle case where secondary output reload uses a temporary, but
actual store isn't found.
When looking for a store of a value not loaded in order to call
delete_output_reload, count_occurences should return 0 for no
loads; but discount inherited input reloadill_reg_stored_to.
Do checks for extra uses of REG. Changed all
callers.
Use delete_address_reloads.
(reload): Take return value of find_reloads into account.
If a no-op set needs more than one reload, delete it.
(reload_reg_free_before_p): RELOAD_FOR_INPUT
can ignore RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS
for the same operand.
(clear_reload_reg_in_use): Check for other reloads that keep a
register in use.
(reload_reg_free_for_value_p): handle RELOAD_FOR_OPERAND_ADDRESS /
RELOAD_FOR_OPADDR_ADDR.
Take into account when an address address reload is only needed
for the address reload we are considering.
(count_occurrences): Use rtx_equal_p for MEMs.
(inc_for_reload): Return instruction that stores into RELOADREG.
New argument two, IN, and rtx. Changed all callers.
(calculate_needs_all_insns, reload_as_needed):
Don't clear after_call for a CLOBBER.
Keep track of how many hard registers need to be copied from
after_call, and don't clear after_call before we have seen
that much copies, or we see a different instruction.
From-SVN: r23143
1998-10-16 21:54:38 +02:00
|
|
|
|
{
|
1999-09-12 03:51:28 +02:00
|
|
|
|
operand = *recog_data.operand_loc[i];
|
Fix consistency problems with reg_equiv_{mem,address};
Improve reload inheritance;
* reload.c (reload_out_reg): New variable.
(loc_mentioned_in_p, remove_address_replacements): New functions.
(remove_replacements): Deleted.
(push_reload): Set reload_out_reg[i].
When merging, also set reload_{in,out}_reg[i], and remove
duplicate address reloads.
(combine_reloads): Copy reload_out_reg[i].
(find_reloads): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
Include *recog_operand_loc in commutativity operand changes.
Generate optional output reloads.
Delete reference to n_memlocs. Don't set *recog_operand_loc before
processing operands. Call make_memloc in reg_equiv_address code.
Set *recog_operand_loc only after processing operands, and only
if replace is true. Return a value.
When changing address reload types for operands that didn't get
reloaded, use RELOAD_FOR_OPADDR_ADDRESS for
RELOAD_FOR_INPADDR_ADDRESS / RELOAD_FOR_OUTADDR_ADDRESS reloads.
Don't emit USEs for pseudo SUBREGs when not replacing.
(find_reloads_address): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
(find_reloads_toplev): Likewise.
Call make_memloc in reg_equiv_address code.
(debug_reload_to_stream): Add code to output reload_out_reg.
(make_memloc): Delete local variable i, ifdefed out code, and
references to memlocs and n_memlocs.
(memlocs, n_memlocs): Delete.
(push_secondary_reload): Clear reload_out_reg.
(find_reloads_address_1): Provide memrefloc argument to all calls
to find_reloads_address.
In AUTO_INC code, handle non-directly addressable equivalences properly.
* reload.h (reload_out_reg, num_not_at_initial_offset): Declare.
(find_reloads): Add return type.
(remove_address_replacements, deallocate_reload_reg): Declare.
* reload1.c (num_not_at_initial_offset): No longer static.
(delete_address_reloads, delete_address_reloads_1): Likewise.
(deallocate_reload_reg): New function.
(spill_reg_stored_to): New array.
(eliminate_regs): Don't substitute from reg_equiv_memory_loc.
(eliminate_regs_in_insn): Move assignments of previous_offset and
max_offset fields, and recalculation of num_not_at_initial_offset
into new static function:
(update_eliminable_offsets) .
(reload_as_needed): Call update_eliminable_offsetss after calling
find_reloads.
Call forget_old_reloads_1 with contents of reloaded auto_inc
expressions if the actual addressing can't be changed to match the
auto_inc.
(choose_reload_regs): For inheritance, replace
reload_reg_free_before_p test with reload_reg_ions.
(emit_reload_insns): If reload_in is a MEM, set OLD to
reload_in_reg[j].
Don't reload directly from oldequiv; if it's a pseudo with a
stack slot, use reload_in[j].
Check that reload_in_reg[j] is a MEM before replacing reload_in
from reg_reloaded_contents.
Include non-spill registers in reload inheritance processing.
Also try to use reload_out_reg to set spill_reg_store /
reg_last_reload_reg.
In code to set new_spill_reg_store, use single_set to find out if
there is a single set.
Add code that allows to delete optional output reloads.
Add code to allow deletion of output reloads that use no spill reg.
At the end, set reload_override_in to oldequiv.
Also call delete_output_reload if reload_out_reg is equal to old
in oldequiv code.
Add code to call delete_output_reload for stores with no matching load.
Set / use spill_reg_stored_to.
Handle case where secondary output reload uses a temporary, but
actual store isn't found.
When looking for a store of a value not loaded in order to call
delete_output_reload, count_occurences should return 0 for no
loads; but discount inherited input reloadill_reg_stored_to.
Do checks for extra uses of REG. Changed all
callers.
Use delete_address_reloads.
(reload): Take return value of find_reloads into account.
If a no-op set needs more than one reload, delete it.
(reload_reg_free_before_p): RELOAD_FOR_INPUT
can ignore RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS
for the same operand.
(clear_reload_reg_in_use): Check for other reloads that keep a
register in use.
(reload_reg_free_for_value_p): handle RELOAD_FOR_OPERAND_ADDRESS /
RELOAD_FOR_OPADDR_ADDR.
Take into account when an address address reload is only needed
for the address reload we are considering.
(count_occurrences): Use rtx_equal_p for MEMs.
(inc_for_reload): Return instruction that stores into RELOADREG.
New argument two, IN, and rtx. Changed all callers.
(calculate_needs_all_insns, reload_as_needed):
Don't clear after_call for a CLOBBER.
Keep track of how many hard registers need to be copied from
after_call, and don't clear after_call before we have seen
that much copies, or we see a different instruction.
From-SVN: r23143
1998-10-16 21:54:38 +02:00
|
|
|
|
|
|
|
|
|
while (GET_CODE (operand) == SUBREG)
|
Use byte offsets in SUBREGs instead of words.
2001-04-03 Jakub Jelinek <jakub@redhat.com>
David S. Miller <davem@pierdol.cobaltmicro.com>
Andrew MacLeod <amacleod@redhat.com>
Use byte offsets in SUBREGs instead of words.
* alias.c (nonlocal_mentioned_p): Use subreg_regno function.
* caller-save.c (mark_set_regs): Change callers of subreg_hard_regno
to pass new argument.
(add_stored_regs): Use subreg_regno_offset function.
* calls.c (expand_call): For non-paradoxical SUBREG take endianess
into account.
(precompute_arguments): Use gen_lowpart_SUBREG.
* combine.c (try_combine): Replace explicit XEXP with SUBREG_REG.
(combine_simplify_rtx): Rework to use SUBREG_BYTE.
(simplify_set): Rework to use SUBREG_BYTE.
(expand_field_assignment): Use SUBREG_BYTE.
(make_extraction): Use SUBREG_BYTE.
(if_then_else_cond): Use SUBREG_BYTE.
(apply_distributive_law): Use SUBREG_BYTE and fixup subreg comments.
(gen_lowpart_for_combine): Compute full byte offset.
* cse.c (mention_regs): Use SUBREG_BYTE.
(remove_invalid_subreg_refs): Rework to use SUBREG_BYTE.
(canon_hash): Use SUBREG_BYTE.
(fold_rtx): Pass SUBREG_BYTE div UNITS_PER_WORD to operand_subword.
(gen_lowpart_if_possible): Formatting.
* dbxout.c (dbxout_symbol_location): Compute SUBREG hard regnos
correctly.
* dwarf2out.c (is_pseudo_reg): Fixup explicit XEXP into SUBREG_REG
(mem_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
(loc_descriptor): Fixup explicit XEXP into SUBREG_REG
* dwarfout.c (is_pseudo_reg): Fixup explicit XEXP into SUBREG_REG
(output_mem_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
(output_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
* emit-rtl.c (gen_rtx_SUBREG): New function, used to verify
certain invariants about SUBREGs the compiler creates.
(gen_lowpart_SUBREG): New function.
(subreg_hard_regno): New function to get the final register number.
(gen_lowpart_common): Use SUBREG_BYTE.
(gen_imagpart): Spacing nits.
(subreg_realpart_p): Use SUBREG_BYTE.
(gen_highpart): Use SUBREG_BYTE.
(subreg_lowpart_p): Always compute endian corrected goal offset,
even at the byte level, then compare against that.
(constant_subword): New function, pulled out all constant cases
from operand_subword and changed second argument name to offset.
(operand_subword): Detect non REG/SUBREG/CONCAT/MEM cases early
and call constant_subword to do the work. Return const0_rtx if
looking for a word outside of OP.
(operand_subword_force): Change second arg name to offset.
* expmed.c (store_bit_field): Use SUBREG_BYTE.
(store_split_bit_field): Use SUBREG_BYTE.
(extract_bit_field): Use SUBREG_BYTE.
(extract_split_bit_field): Use SUBREG_BYTE.
(expand_shift): Use SUBREG_BYTE.
* expr.c (store_expr, expand_expr): Use gen_lowpart_SUBREG.
* final.c (alter_subreg) Use subreg_hard_regno and SUBREG_BYTE.
* flow.c (set_noop_p): Use SUBREG_BYTE.
(mark_set_1): Remove ALTER_HARD_SUBREG. Use subreg_regno_offset instead.
* function.c (fixup_var_refs_1): Fixup explicit XEXP into a SUBREG_REG.
(fixup_memory_subreg): Use SUBREG_BYTE and remove byte endian
correction code.
(optimize_bit_field): Use SUBREG_BYTE.
(purge_addressof_1): Use SUBREG_BYTE.
(purge_single_hard_subreg_set): Use subreg_regno_offset function.
(assign_params): Mark arguments SUBREG_PROMOTED_VAR_P if they are
actually promoted by the caller and PROMOTE_FOR_CALLS_ONLY is true.
* gengenrtl.c (special_rtx): Add SUBREG.
* global.c (mark_reg_store): Use SUBREG_BYTE.
(set_preference): Rework to use subreg_regno_offset and SUBREG_BYTE.
* ifcvt (noce_emit_move_insn): Use SUBREG_BYTE.
* integrate.c (copy_rtx_and_substitute): Use SUBREG_BYTE and make sure
final byte offset is congruent to subreg's mode size.
(subst_constants): Use SUBREG_BYTE.
(mark_stores): Use subreg_regno_offset function.
* jump.c (rtx_renumbered_equal_p, true_regnum): Use subreg_regno_offset
function and SUBREG_BYTE.
* local-alloc.c (combine_regs): Use subreg_regno_offset function.
(reg_is_born): Use subreg_hard_regno.
* recog.c (valid_replace_rtx_1): Use SUBREG_BYTE and remove byte
endian correction code. Don't combine subregs unless resulting
offset aligns with type. Fix subreg constant extraction for DImode.
Simplify SUBREG of VOIDmode CONST_DOUBLE.
(general_operand): Remove dead mode_altering_drug code.
(indirect_operand): Use SUBREG_BYTE.
(constrain_operands): Use subreg_regno_offset function.
* reg-stack.c (get_true_reg): Use subreg_regno_offset function.
* regmove.c (regmove_optimize): Use SUBREG_BYTE.
(optimize_reg_copy_3): Use gen_lowpart_SUBREG.
* regs.h (REG_SIZE): Allow target to override.
(REGMODE_NATURAL_SIZE): New macro which target can override.
* reload.c (reload_inner_reg_of_subreg): subreg_regno should be used
on the entire subreg rtx.
(push_reload): Use SUBREG_BYTE in comments and code.
(find_dummy_reload): Use subreg_regno_offset. Only adjust offsets
for hard registers inside subregs.
(operands_match_p): Use subreg_regno_offset.
(find_reloads): Use SUBREG_BYTE and only advance offset for subregs
containing hard regs.
(find_reload_toplev): Use SUBREG_BYTE. Remove byte endian
corrections when fixing up MEM subregs.
(find_reloads_address_1): Use SUBREG_BYTE, subreg_regno, and
subreg_regno_offset where appropriate.
(find_reloads_subreg_address): Use SUBREG_BYTE. Remove
byte endian corrections when fixing up MEM subregs.
(subst_reloads): When combining two subregs, make sure final
offset is congruent to subreg's mode size.
(find_replacement): Use SUBREG_BYTE and subreg_regno_offset.
(refers_to_regno_for_reload_p): Use subreg_regno.
(reg_overlap_mentioned_for_reload_p): Use subreg_regno_offset.
* reload1.c (eliminate_regs) Use SUBREG_BYTE. Remove byte endian
correction code for memory subreg fixups.
(forget_old_reload_1): Use subreg_regno_offset.
(choose_reload_regs): Use subreg_regno.
(emit_input_reload_insns): Use SUBREG_BYTE.
(reload_combine_note_store): Use subreg_regno_offset.
(move2add_note_store): Use subreg_regno_offset.
* resource.c (update_live_status, mark_referenced_resources): Use
subreg_regno function.
(mark_set_resources): Use subreg_regno function.
* rtl.h (SUBREG_WORD): Rename to SUBREG_BYTE.
(subreg_regno_offset, subreg_regno): Define prototypes.
(subreg_hard_regno, constant_subword, gen_rtx_SUBREG): Newi functions.
(gen_lowpart_SUBREG): Add prototype.
* rtl.texi (subreg): Update to reflect new byte offset representation.
Add mentioning of the effect that BYTES_BIG_ENDIAN has on subregs now.
* rtlanal.c (refers_to_regno_p): Use subreg_regno.
(reg_overlap_mentioned_p): Use subreg_regno.
(replace_regs); Make sure final offset of combined subreg is
congruent to size of subreg's mode.
(subreg_regno_offset): New function.
(subreg_regno): New function.
* sched-vis.c (print_value): Change SUBREG_WORD to SUBREG_BYTE.
* sdbout.c (sdbout_symbol): Compute offset using alter_subreg.
* stmt.c (expand_anon_union_decl): Use gen_lowpart_SUBREG.
* tm.texi (ALTER_HARD_SUBREG): Remove, it is now dead.
(SUBREG_REGNO_OFFSET): Describe SUBREG_REGNO_OFFSET overrides.
* config/a29k/a29k.c (gpc_reg_operand): Use subreg_regno.
(a29k_get_reloaded_address): Use SUBREG_BYTE.
(print_operand): Use SUBREG_BYTE.
* config/alpha/alpha.c (print_operand_address): Use SUBREG_BYTE.
* config/arm/arm.c (arm_reload_in_hi): Use SUBREG_BYTE.
(arm_reload_out_hi): Use SUBREG_BYTE.
* config/d30v/d30v.c (d30v_split_double): Use subreg_regno_offset
instead of SUBREG_WORD.
(d30v_print_operand_memory_reference): Use subreg_regno_offset.
* config/dsp16xx/dsp16xx.md (extendqihi2, zero_extendqihi2): Fix
SUBREG creation to use byte offset.
* config/h8300/h8300.md (Unnamed HImode zero extraction and 16bit
inverted load insns): Fix explicit rtl subregs to use byte
offsets.
* config/i370/i370.md (cmpstrsi, movstrsi, mulsi3, divsi3,
udivsi3, umodsi3): Generate SUBREGs with byte offsets.
* config/i860/i860.c (single_insn_src_p): Use SUBREG_BYTE.
* config/i860/i860.md (mulsi3_big): Fixup explicit SUBREGs in rtl
to use byte offsets.
(unnamed fmlow.dd insn): Fixup SUBREGS to use byte offsets.
* config/i960/i960.md (extendhisi2): Generate SUBREGs with byte
offsets, also make sure it is congruent to SUBREG's mode size.
(extendqisi2, extendqihi2, zero_extendhisi2, zero_extendqisi2,
unnamed ldob insn): Generate SUBREGs with byte offset.
(zero_extendqihi2): SUBREG's are byte offsets.
* config/m68hc11/m68hc11.c (m68hc11_gen_lowpart): Use SUBREG_BYTE.
(m68hc11_gen_highpart): Use SUBREG_BYTE.
* config/m68k/m68k.md (zero_extendhisi2, zero_extendqihi2,
zero-extendqisi2): Generate SUBREGs with byte offset.
(umulsidi3, mulsidi3, subreghi1ashrdi_const32,
subregsi1ashrdi_const32, subreg1lshrdi_const32): Fixup explicit
subregs in rtl to use byte offsets.
* config/m88k/m88k.md (extendsidi2): fixup subregs to use byte offset.
* config/mips/mips.c (mips_move_1word): Use subreg_regno_offset.
(mips_move_2words): Use subreg_regno_offset.
(mips_secondary_reload_class): Use subreg_regno_offset.
* config/mips/mips.md (DImode plus, minus, move, and logical op
splits): Fixup explicit subregs in rtl to use byte offsets.
* config/mn10200/mn10200.c (print_operand): Use subreg_regno function.
* config/mn10300/mn10300.c (print_operand): Use subreg_regno function.
* config/ns32k/ns32k.md (udivmoddisi4): Fix explicit subregs in
rtl to use byte offsets.
* config/pa/pa.c (emit_move_sequence): Use SUBREG_BYTE.
* config/pa/pa.md (floatunssisf2, floatunssidf2, mulsi3): fix explicit
subregs to use byte offsets.
* config/pdp11/pdp11.md (zero_extendhisi2, modhi3, modhi3+1):
Fixup explicit subregs in rtl to use byte offsets.
* config/romp/romp.c (memory_offset_in_range_p): Use SUBREG_BYTE
and remove byte endian correction code.
* config/sh/sh.c (output_movedouble): Use subreg_regno.
(gen_ashift_hi): Use SUBREG_BYTE.
(regs_used): Use subreg_regno_offset.
(machine_dependent_reorg): Use subreg_regno_offset.
* config/sh/sh.h (INDEX_REGISTER_RTX_P): Use SUBREG_BYTE.
* config/sh/sh.md (DImode and DFmode move splits): Use subreg_regno.
(movdf_i4): Subregs are byte offsets now.
* config/sparc/sparc.c (ultra_find_type): Use SUBREG_BYTE.
* config/sparc/sparc.h (ALTER_HARD_SUBREG): Removed.
(REGMODE_NATURAL_SIZE): Override.
(REG_SIZE): For SUBREG check float mode on SUBREG_REG's mode.
* config/sparc/sparc.md (TFmode move splits): Generate SUBREGs
with byte offsets.
(zero_extendhisi2, zero_extendqidi2_insn, extendhisi2,
extendqihi2, sign_extendqihi2_insn, sign_extendqisi2_insn,
extendqidi2): Generate SUBREGs with byte offsets, also make sure
it is congruent to SUBREG's mode size.
(smulsi3_highpart_v8plus): Fix explicit subregs in rtl to use byte
offsets.
(cmp_siqi_trunc, cmp_siqi_trunc_set, cmp_diqi_trunc,
cmp_diqi_trunc_set, lshrdi3_v8plus+1, lshrdi3_v8plus+2,
lshrdi3_v8plus+3, lshrdi3_v8plus+4): Use proper
SUBREG_BYTE offset for non-paradoxical subregs in patterns.
* config/v850/v850.c (print_operand, output_move_double): Use
subreg_regno function.
Co-Authored-By: Andrew MacLeod <amacleod@redhat.com>
Co-Authored-By: David S. Miller <davem@pierdol.cobaltmicro.com>
From-SVN: r41058
2001-04-03 17:06:12 +02:00
|
|
|
|
operand = SUBREG_REG (operand);
|
Fix consistency problems with reg_equiv_{mem,address};
Improve reload inheritance;
* reload.c (reload_out_reg): New variable.
(loc_mentioned_in_p, remove_address_replacements): New functions.
(remove_replacements): Deleted.
(push_reload): Set reload_out_reg[i].
When merging, also set reload_{in,out}_reg[i], and remove
duplicate address reloads.
(combine_reloads): Copy reload_out_reg[i].
(find_reloads): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
Include *recog_operand_loc in commutativity operand changes.
Generate optional output reloads.
Delete reference to n_memlocs. Don't set *recog_operand_loc before
processing operands. Call make_memloc in reg_equiv_address code.
Set *recog_operand_loc only after processing operands, and only
if replace is true. Return a value.
When changing address reload types for operands that didn't get
reloaded, use RELOAD_FOR_OPADDR_ADDRESS for
RELOAD_FOR_INPADDR_ADDRESS / RELOAD_FOR_OUTADDR_ADDRESS reloads.
Don't emit USEs for pseudo SUBREGs when not replacing.
(find_reloads_address): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
(find_reloads_toplev): Likewise.
Call make_memloc in reg_equiv_address code.
(debug_reload_to_stream): Add code to output reload_out_reg.
(make_memloc): Delete local variable i, ifdefed out code, and
references to memlocs and n_memlocs.
(memlocs, n_memlocs): Delete.
(push_secondary_reload): Clear reload_out_reg.
(find_reloads_address_1): Provide memrefloc argument to all calls
to find_reloads_address.
In AUTO_INC code, handle non-directly addressable equivalences properly.
* reload.h (reload_out_reg, num_not_at_initial_offset): Declare.
(find_reloads): Add return type.
(remove_address_replacements, deallocate_reload_reg): Declare.
* reload1.c (num_not_at_initial_offset): No longer static.
(delete_address_reloads, delete_address_reloads_1): Likewise.
(deallocate_reload_reg): New function.
(spill_reg_stored_to): New array.
(eliminate_regs): Don't substitute from reg_equiv_memory_loc.
(eliminate_regs_in_insn): Move assignments of previous_offset and
max_offset fields, and recalculation of num_not_at_initial_offset
into new static function:
(update_eliminable_offsets) .
(reload_as_needed): Call update_eliminable_offsetss after calling
find_reloads.
Call forget_old_reloads_1 with contents of reloaded auto_inc
expressions if the actual addressing can't be changed to match the
auto_inc.
(choose_reload_regs): For inheritance, replace
reload_reg_free_before_p test with reload_reg_ions.
(emit_reload_insns): If reload_in is a MEM, set OLD to
reload_in_reg[j].
Don't reload directly from oldequiv; if it's a pseudo with a
stack slot, use reload_in[j].
Check that reload_in_reg[j] is a MEM before replacing reload_in
from reg_reloaded_contents.
Include non-spill registers in reload inheritance processing.
Also try to use reload_out_reg to set spill_reg_store /
reg_last_reload_reg.
In code to set new_spill_reg_store, use single_set to find out if
there is a single set.
Add code that allows to delete optional output reloads.
Add code to allow deletion of output reloads that use no spill reg.
At the end, set reload_override_in to oldequiv.
Also call delete_output_reload if reload_out_reg is equal to old
in oldequiv code.
Add code to call delete_output_reload for stores with no matching load.
Set / use spill_reg_stored_to.
Handle case where secondary output reload uses a temporary, but
actual store isn't found.
When looking for a store of a value not loaded in order to call
delete_output_reload, count_occurences should return 0 for no
loads; but discount inherited input reloadill_reg_stored_to.
Do checks for extra uses of REG. Changed all
callers.
Use delete_address_reloads.
(reload): Take return value of find_reloads into account.
If a no-op set needs more than one reload, delete it.
(reload_reg_free_before_p): RELOAD_FOR_INPUT
can ignore RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS
for the same operand.
(clear_reload_reg_in_use): Check for other reloads that keep a
register in use.
(reload_reg_free_for_value_p): handle RELOAD_FOR_OPERAND_ADDRESS /
RELOAD_FOR_OPADDR_ADDR.
Take into account when an address address reload is only needed
for the address reload we are considering.
(count_occurrences): Use rtx_equal_p for MEMs.
(inc_for_reload): Return instruction that stores into RELOADREG.
New argument two, IN, and rtx. Changed all callers.
(calculate_needs_all_insns, reload_as_needed):
Don't clear after_call for a CLOBBER.
Keep track of how many hard registers need to be copied from
after_call, and don't clear after_call before we have seen
that much copies, or we see a different instruction.
From-SVN: r23143
1998-10-16 21:54:38 +02:00
|
|
|
|
if (GET_CODE (operand) == REG)
|
|
|
|
|
{
|
|
|
|
|
if (modified[i] != RELOAD_WRITE)
|
2001-09-29 23:52:12 +02:00
|
|
|
|
/* We mark the USE with QImode so that we recognize
|
|
|
|
|
it as one that can be safely deleted at the end
|
|
|
|
|
of reload. */
|
|
|
|
|
PUT_MODE (emit_insn_before (gen_rtx_USE (VOIDmode, operand),
|
|
|
|
|
insn), QImode);
|
Fix consistency problems with reg_equiv_{mem,address};
Improve reload inheritance;
* reload.c (reload_out_reg): New variable.
(loc_mentioned_in_p, remove_address_replacements): New functions.
(remove_replacements): Deleted.
(push_reload): Set reload_out_reg[i].
When merging, also set reload_{in,out}_reg[i], and remove
duplicate address reloads.
(combine_reloads): Copy reload_out_reg[i].
(find_reloads): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
Include *recog_operand_loc in commutativity operand changes.
Generate optional output reloads.
Delete reference to n_memlocs. Don't set *recog_operand_loc before
processing operands. Call make_memloc in reg_equiv_address code.
Set *recog_operand_loc only after processing operands, and only
if replace is true. Return a value.
When changing address reload types for operands that didn't get
reloaded, use RELOAD_FOR_OPADDR_ADDRESS for
RELOAD_FOR_INPADDR_ADDRESS / RELOAD_FOR_OUTADDR_ADDRESS reloads.
Don't emit USEs for pseudo SUBREGs when not replacing.
(find_reloads_address): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
(find_reloads_toplev): Likewise.
Call make_memloc in reg_equiv_address code.
(debug_reload_to_stream): Add code to output reload_out_reg.
(make_memloc): Delete local variable i, ifdefed out code, and
references to memlocs and n_memlocs.
(memlocs, n_memlocs): Delete.
(push_secondary_reload): Clear reload_out_reg.
(find_reloads_address_1): Provide memrefloc argument to all calls
to find_reloads_address.
In AUTO_INC code, handle non-directly addressable equivalences properly.
* reload.h (reload_out_reg, num_not_at_initial_offset): Declare.
(find_reloads): Add return type.
(remove_address_replacements, deallocate_reload_reg): Declare.
* reload1.c (num_not_at_initial_offset): No longer static.
(delete_address_reloads, delete_address_reloads_1): Likewise.
(deallocate_reload_reg): New function.
(spill_reg_stored_to): New array.
(eliminate_regs): Don't substitute from reg_equiv_memory_loc.
(eliminate_regs_in_insn): Move assignments of previous_offset and
max_offset fields, and recalculation of num_not_at_initial_offset
into new static function:
(update_eliminable_offsets) .
(reload_as_needed): Call update_eliminable_offsetss after calling
find_reloads.
Call forget_old_reloads_1 with contents of reloaded auto_inc
expressions if the actual addressing can't be changed to match the
auto_inc.
(choose_reload_regs): For inheritance, replace
reload_reg_free_before_p test with reload_reg_ions.
(emit_reload_insns): If reload_in is a MEM, set OLD to
reload_in_reg[j].
Don't reload directly from oldequiv; if it's a pseudo with a
stack slot, use reload_in[j].
Check that reload_in_reg[j] is a MEM before replacing reload_in
from reg_reloaded_contents.
Include non-spill registers in reload inheritance processing.
Also try to use reload_out_reg to set spill_reg_store /
reg_last_reload_reg.
In code to set new_spill_reg_store, use single_set to find out if
there is a single set.
Add code that allows to delete optional output reloads.
Add code to allow deletion of output reloads that use no spill reg.
At the end, set reload_override_in to oldequiv.
Also call delete_output_reload if reload_out_reg is equal to old
in oldequiv code.
Add code to call delete_output_reload for stores with no matching load.
Set / use spill_reg_stored_to.
Handle case where secondary output reload uses a temporary, but
actual store isn't found.
When looking for a store of a value not loaded in order to call
delete_output_reload, count_occurences should return 0 for no
loads; but discount inherited input reloadill_reg_stored_to.
Do checks for extra uses of REG. Changed all
callers.
Use delete_address_reloads.
(reload): Take return value of find_reloads into account.
If a no-op set needs more than one reload, delete it.
(reload_reg_free_before_p): RELOAD_FOR_INPUT
can ignore RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS
for the same operand.
(clear_reload_reg_in_use): Check for other reloads that keep a
register in use.
(reload_reg_free_for_value_p): handle RELOAD_FOR_OPERAND_ADDRESS /
RELOAD_FOR_OPADDR_ADDR.
Take into account when an address address reload is only needed
for the address reload we are considering.
(count_occurrences): Use rtx_equal_p for MEMs.
(inc_for_reload): Return instruction that stores into RELOADREG.
New argument two, IN, and rtx. Changed all callers.
(calculate_needs_all_insns, reload_as_needed):
Don't clear after_call for a CLOBBER.
Keep track of how many hard registers need to be copied from
after_call, and don't clear after_call before we have seen
that much copies, or we see a different instruction.
From-SVN: r23143
1998-10-16 21:54:38 +02:00
|
|
|
|
if (modified[i] != RELOAD_READ)
|
|
|
|
|
emit_insn_after (gen_rtx_CLOBBER (VOIDmode, operand), insn);
|
|
|
|
|
}
|
|
|
|
|
}
|
1992-02-28 11:23:25 +01:00
|
|
|
|
}
|
1993-03-29 13:27:52 +02:00
|
|
|
|
else if (goal_alternative_matches[i] >= 0
|
|
|
|
|
&& goal_alternative_win[goal_alternative_matches[i]]
|
|
|
|
|
&& modified[i] == RELOAD_READ
|
|
|
|
|
&& modified[goal_alternative_matches[i]] == RELOAD_WRITE
|
|
|
|
|
&& ! no_input_reloads && ! no_output_reloads
|
|
|
|
|
&& optimize)
|
|
|
|
|
{
|
|
|
|
|
/* Similarly, make an optional reload for a pair of matching
|
|
|
|
|
objects that are in MEM or a pseudo that didn't get a hard reg. */
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
1999-09-12 03:51:28 +02:00
|
|
|
|
rtx operand = recog_data.operand[i];
|
1993-03-29 13:27:52 +02:00
|
|
|
|
|
|
|
|
|
while (GET_CODE (operand) == SUBREG)
|
Use byte offsets in SUBREGs instead of words.
2001-04-03 Jakub Jelinek <jakub@redhat.com>
David S. Miller <davem@pierdol.cobaltmicro.com>
Andrew MacLeod <amacleod@redhat.com>
Use byte offsets in SUBREGs instead of words.
* alias.c (nonlocal_mentioned_p): Use subreg_regno function.
* caller-save.c (mark_set_regs): Change callers of subreg_hard_regno
to pass new argument.
(add_stored_regs): Use subreg_regno_offset function.
* calls.c (expand_call): For non-paradoxical SUBREG take endianess
into account.
(precompute_arguments): Use gen_lowpart_SUBREG.
* combine.c (try_combine): Replace explicit XEXP with SUBREG_REG.
(combine_simplify_rtx): Rework to use SUBREG_BYTE.
(simplify_set): Rework to use SUBREG_BYTE.
(expand_field_assignment): Use SUBREG_BYTE.
(make_extraction): Use SUBREG_BYTE.
(if_then_else_cond): Use SUBREG_BYTE.
(apply_distributive_law): Use SUBREG_BYTE and fixup subreg comments.
(gen_lowpart_for_combine): Compute full byte offset.
* cse.c (mention_regs): Use SUBREG_BYTE.
(remove_invalid_subreg_refs): Rework to use SUBREG_BYTE.
(canon_hash): Use SUBREG_BYTE.
(fold_rtx): Pass SUBREG_BYTE div UNITS_PER_WORD to operand_subword.
(gen_lowpart_if_possible): Formatting.
* dbxout.c (dbxout_symbol_location): Compute SUBREG hard regnos
correctly.
* dwarf2out.c (is_pseudo_reg): Fixup explicit XEXP into SUBREG_REG
(mem_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
(loc_descriptor): Fixup explicit XEXP into SUBREG_REG
* dwarfout.c (is_pseudo_reg): Fixup explicit XEXP into SUBREG_REG
(output_mem_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
(output_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
* emit-rtl.c (gen_rtx_SUBREG): New function, used to verify
certain invariants about SUBREGs the compiler creates.
(gen_lowpart_SUBREG): New function.
(subreg_hard_regno): New function to get the final register number.
(gen_lowpart_common): Use SUBREG_BYTE.
(gen_imagpart): Spacing nits.
(subreg_realpart_p): Use SUBREG_BYTE.
(gen_highpart): Use SUBREG_BYTE.
(subreg_lowpart_p): Always compute endian corrected goal offset,
even at the byte level, then compare against that.
(constant_subword): New function, pulled out all constant cases
from operand_subword and changed second argument name to offset.
(operand_subword): Detect non REG/SUBREG/CONCAT/MEM cases early
and call constant_subword to do the work. Return const0_rtx if
looking for a word outside of OP.
(operand_subword_force): Change second arg name to offset.
* expmed.c (store_bit_field): Use SUBREG_BYTE.
(store_split_bit_field): Use SUBREG_BYTE.
(extract_bit_field): Use SUBREG_BYTE.
(extract_split_bit_field): Use SUBREG_BYTE.
(expand_shift): Use SUBREG_BYTE.
* expr.c (store_expr, expand_expr): Use gen_lowpart_SUBREG.
* final.c (alter_subreg) Use subreg_hard_regno and SUBREG_BYTE.
* flow.c (set_noop_p): Use SUBREG_BYTE.
(mark_set_1): Remove ALTER_HARD_SUBREG. Use subreg_regno_offset instead.
* function.c (fixup_var_refs_1): Fixup explicit XEXP into a SUBREG_REG.
(fixup_memory_subreg): Use SUBREG_BYTE and remove byte endian
correction code.
(optimize_bit_field): Use SUBREG_BYTE.
(purge_addressof_1): Use SUBREG_BYTE.
(purge_single_hard_subreg_set): Use subreg_regno_offset function.
(assign_params): Mark arguments SUBREG_PROMOTED_VAR_P if they are
actually promoted by the caller and PROMOTE_FOR_CALLS_ONLY is true.
* gengenrtl.c (special_rtx): Add SUBREG.
* global.c (mark_reg_store): Use SUBREG_BYTE.
(set_preference): Rework to use subreg_regno_offset and SUBREG_BYTE.
* ifcvt (noce_emit_move_insn): Use SUBREG_BYTE.
* integrate.c (copy_rtx_and_substitute): Use SUBREG_BYTE and make sure
final byte offset is congruent to subreg's mode size.
(subst_constants): Use SUBREG_BYTE.
(mark_stores): Use subreg_regno_offset function.
* jump.c (rtx_renumbered_equal_p, true_regnum): Use subreg_regno_offset
function and SUBREG_BYTE.
* local-alloc.c (combine_regs): Use subreg_regno_offset function.
(reg_is_born): Use subreg_hard_regno.
* recog.c (valid_replace_rtx_1): Use SUBREG_BYTE and remove byte
endian correction code. Don't combine subregs unless resulting
offset aligns with type. Fix subreg constant extraction for DImode.
Simplify SUBREG of VOIDmode CONST_DOUBLE.
(general_operand): Remove dead mode_altering_drug code.
(indirect_operand): Use SUBREG_BYTE.
(constrain_operands): Use subreg_regno_offset function.
* reg-stack.c (get_true_reg): Use subreg_regno_offset function.
* regmove.c (regmove_optimize): Use SUBREG_BYTE.
(optimize_reg_copy_3): Use gen_lowpart_SUBREG.
* regs.h (REG_SIZE): Allow target to override.
(REGMODE_NATURAL_SIZE): New macro which target can override.
* reload.c (reload_inner_reg_of_subreg): subreg_regno should be used
on the entire subreg rtx.
(push_reload): Use SUBREG_BYTE in comments and code.
(find_dummy_reload): Use subreg_regno_offset. Only adjust offsets
for hard registers inside subregs.
(operands_match_p): Use subreg_regno_offset.
(find_reloads): Use SUBREG_BYTE and only advance offset for subregs
containing hard regs.
(find_reload_toplev): Use SUBREG_BYTE. Remove byte endian
corrections when fixing up MEM subregs.
(find_reloads_address_1): Use SUBREG_BYTE, subreg_regno, and
subreg_regno_offset where appropriate.
(find_reloads_subreg_address): Use SUBREG_BYTE. Remove
byte endian corrections when fixing up MEM subregs.
(subst_reloads): When combining two subregs, make sure final
offset is congruent to subreg's mode size.
(find_replacement): Use SUBREG_BYTE and subreg_regno_offset.
(refers_to_regno_for_reload_p): Use subreg_regno.
(reg_overlap_mentioned_for_reload_p): Use subreg_regno_offset.
* reload1.c (eliminate_regs) Use SUBREG_BYTE. Remove byte endian
correction code for memory subreg fixups.
(forget_old_reload_1): Use subreg_regno_offset.
(choose_reload_regs): Use subreg_regno.
(emit_input_reload_insns): Use SUBREG_BYTE.
(reload_combine_note_store): Use subreg_regno_offset.
(move2add_note_store): Use subreg_regno_offset.
* resource.c (update_live_status, mark_referenced_resources): Use
subreg_regno function.
(mark_set_resources): Use subreg_regno function.
* rtl.h (SUBREG_WORD): Rename to SUBREG_BYTE.
(subreg_regno_offset, subreg_regno): Define prototypes.
(subreg_hard_regno, constant_subword, gen_rtx_SUBREG): Newi functions.
(gen_lowpart_SUBREG): Add prototype.
* rtl.texi (subreg): Update to reflect new byte offset representation.
Add mentioning of the effect that BYTES_BIG_ENDIAN has on subregs now.
* rtlanal.c (refers_to_regno_p): Use subreg_regno.
(reg_overlap_mentioned_p): Use subreg_regno.
(replace_regs); Make sure final offset of combined subreg is
congruent to size of subreg's mode.
(subreg_regno_offset): New function.
(subreg_regno): New function.
* sched-vis.c (print_value): Change SUBREG_WORD to SUBREG_BYTE.
* sdbout.c (sdbout_symbol): Compute offset using alter_subreg.
* stmt.c (expand_anon_union_decl): Use gen_lowpart_SUBREG.
* tm.texi (ALTER_HARD_SUBREG): Remove, it is now dead.
(SUBREG_REGNO_OFFSET): Describe SUBREG_REGNO_OFFSET overrides.
* config/a29k/a29k.c (gpc_reg_operand): Use subreg_regno.
(a29k_get_reloaded_address): Use SUBREG_BYTE.
(print_operand): Use SUBREG_BYTE.
* config/alpha/alpha.c (print_operand_address): Use SUBREG_BYTE.
* config/arm/arm.c (arm_reload_in_hi): Use SUBREG_BYTE.
(arm_reload_out_hi): Use SUBREG_BYTE.
* config/d30v/d30v.c (d30v_split_double): Use subreg_regno_offset
instead of SUBREG_WORD.
(d30v_print_operand_memory_reference): Use subreg_regno_offset.
* config/dsp16xx/dsp16xx.md (extendqihi2, zero_extendqihi2): Fix
SUBREG creation to use byte offset.
* config/h8300/h8300.md (Unnamed HImode zero extraction and 16bit
inverted load insns): Fix explicit rtl subregs to use byte
offsets.
* config/i370/i370.md (cmpstrsi, movstrsi, mulsi3, divsi3,
udivsi3, umodsi3): Generate SUBREGs with byte offsets.
* config/i860/i860.c (single_insn_src_p): Use SUBREG_BYTE.
* config/i860/i860.md (mulsi3_big): Fixup explicit SUBREGs in rtl
to use byte offsets.
(unnamed fmlow.dd insn): Fixup SUBREGS to use byte offsets.
* config/i960/i960.md (extendhisi2): Generate SUBREGs with byte
offsets, also make sure it is congruent to SUBREG's mode size.
(extendqisi2, extendqihi2, zero_extendhisi2, zero_extendqisi2,
unnamed ldob insn): Generate SUBREGs with byte offset.
(zero_extendqihi2): SUBREG's are byte offsets.
* config/m68hc11/m68hc11.c (m68hc11_gen_lowpart): Use SUBREG_BYTE.
(m68hc11_gen_highpart): Use SUBREG_BYTE.
* config/m68k/m68k.md (zero_extendhisi2, zero_extendqihi2,
zero-extendqisi2): Generate SUBREGs with byte offset.
(umulsidi3, mulsidi3, subreghi1ashrdi_const32,
subregsi1ashrdi_const32, subreg1lshrdi_const32): Fixup explicit
subregs in rtl to use byte offsets.
* config/m88k/m88k.md (extendsidi2): fixup subregs to use byte offset.
* config/mips/mips.c (mips_move_1word): Use subreg_regno_offset.
(mips_move_2words): Use subreg_regno_offset.
(mips_secondary_reload_class): Use subreg_regno_offset.
* config/mips/mips.md (DImode plus, minus, move, and logical op
splits): Fixup explicit subregs in rtl to use byte offsets.
* config/mn10200/mn10200.c (print_operand): Use subreg_regno function.
* config/mn10300/mn10300.c (print_operand): Use subreg_regno function.
* config/ns32k/ns32k.md (udivmoddisi4): Fix explicit subregs in
rtl to use byte offsets.
* config/pa/pa.c (emit_move_sequence): Use SUBREG_BYTE.
* config/pa/pa.md (floatunssisf2, floatunssidf2, mulsi3): fix explicit
subregs to use byte offsets.
* config/pdp11/pdp11.md (zero_extendhisi2, modhi3, modhi3+1):
Fixup explicit subregs in rtl to use byte offsets.
* config/romp/romp.c (memory_offset_in_range_p): Use SUBREG_BYTE
and remove byte endian correction code.
* config/sh/sh.c (output_movedouble): Use subreg_regno.
(gen_ashift_hi): Use SUBREG_BYTE.
(regs_used): Use subreg_regno_offset.
(machine_dependent_reorg): Use subreg_regno_offset.
* config/sh/sh.h (INDEX_REGISTER_RTX_P): Use SUBREG_BYTE.
* config/sh/sh.md (DImode and DFmode move splits): Use subreg_regno.
(movdf_i4): Subregs are byte offsets now.
* config/sparc/sparc.c (ultra_find_type): Use SUBREG_BYTE.
* config/sparc/sparc.h (ALTER_HARD_SUBREG): Removed.
(REGMODE_NATURAL_SIZE): Override.
(REG_SIZE): For SUBREG check float mode on SUBREG_REG's mode.
* config/sparc/sparc.md (TFmode move splits): Generate SUBREGs
with byte offsets.
(zero_extendhisi2, zero_extendqidi2_insn, extendhisi2,
extendqihi2, sign_extendqihi2_insn, sign_extendqisi2_insn,
extendqidi2): Generate SUBREGs with byte offsets, also make sure
it is congruent to SUBREG's mode size.
(smulsi3_highpart_v8plus): Fix explicit subregs in rtl to use byte
offsets.
(cmp_siqi_trunc, cmp_siqi_trunc_set, cmp_diqi_trunc,
cmp_diqi_trunc_set, lshrdi3_v8plus+1, lshrdi3_v8plus+2,
lshrdi3_v8plus+3, lshrdi3_v8plus+4): Use proper
SUBREG_BYTE offset for non-paradoxical subregs in patterns.
* config/v850/v850.c (print_operand, output_move_double): Use
subreg_regno function.
Co-Authored-By: Andrew MacLeod <amacleod@redhat.com>
Co-Authored-By: David S. Miller <davem@pierdol.cobaltmicro.com>
From-SVN: r41058
2001-04-03 17:06:12 +02:00
|
|
|
|
operand = SUBREG_REG (operand);
|
1993-03-29 13:27:52 +02:00
|
|
|
|
if ((GET_CODE (operand) == MEM
|
|
|
|
|
|| (GET_CODE (operand) == REG
|
|
|
|
|
&& REGNO (operand) >= FIRST_PSEUDO_REGISTER))
|
|
|
|
|
&& ((enum reg_class) goal_alternative[goal_alternative_matches[i]]
|
|
|
|
|
!= NO_REGS))
|
|
|
|
|
operand_reloadnum[i] = operand_reloadnum[goal_alternative_matches[i]]
|
1999-09-12 03:51:28 +02:00
|
|
|
|
= push_reload (recog_data.operand[goal_alternative_matches[i]],
|
|
|
|
|
recog_data.operand[i],
|
|
|
|
|
recog_data.operand_loc[goal_alternative_matches[i]],
|
|
|
|
|
recog_data.operand_loc[i],
|
1993-03-29 13:27:52 +02:00
|
|
|
|
(enum reg_class) goal_alternative[goal_alternative_matches[i]],
|
|
|
|
|
operand_mode[goal_alternative_matches[i]],
|
|
|
|
|
operand_mode[i],
|
|
|
|
|
0, 1, goal_alternative_matches[i], RELOAD_OTHER);
|
|
|
|
|
}
|
1999-09-01 16:30:35 +02:00
|
|
|
|
|
Fix consistency problems with reg_equiv_{mem,address};
Improve reload inheritance;
* reload.c (reload_out_reg): New variable.
(loc_mentioned_in_p, remove_address_replacements): New functions.
(remove_replacements): Deleted.
(push_reload): Set reload_out_reg[i].
When merging, also set reload_{in,out}_reg[i], and remove
duplicate address reloads.
(combine_reloads): Copy reload_out_reg[i].
(find_reloads): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
Include *recog_operand_loc in commutativity operand changes.
Generate optional output reloads.
Delete reference to n_memlocs. Don't set *recog_operand_loc before
processing operands. Call make_memloc in reg_equiv_address code.
Set *recog_operand_loc only after processing operands, and only
if replace is true. Return a value.
When changing address reload types for operands that didn't get
reloaded, use RELOAD_FOR_OPADDR_ADDRESS for
RELOAD_FOR_INPADDR_ADDRESS / RELOAD_FOR_OUTADDR_ADDRESS reloads.
Don't emit USEs for pseudo SUBREGs when not replacing.
(find_reloads_address): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
(find_reloads_toplev): Likewise.
Call make_memloc in reg_equiv_address code.
(debug_reload_to_stream): Add code to output reload_out_reg.
(make_memloc): Delete local variable i, ifdefed out code, and
references to memlocs and n_memlocs.
(memlocs, n_memlocs): Delete.
(push_secondary_reload): Clear reload_out_reg.
(find_reloads_address_1): Provide memrefloc argument to all calls
to find_reloads_address.
In AUTO_INC code, handle non-directly addressable equivalences properly.
* reload.h (reload_out_reg, num_not_at_initial_offset): Declare.
(find_reloads): Add return type.
(remove_address_replacements, deallocate_reload_reg): Declare.
* reload1.c (num_not_at_initial_offset): No longer static.
(delete_address_reloads, delete_address_reloads_1): Likewise.
(deallocate_reload_reg): New function.
(spill_reg_stored_to): New array.
(eliminate_regs): Don't substitute from reg_equiv_memory_loc.
(eliminate_regs_in_insn): Move assignments of previous_offset and
max_offset fields, and recalculation of num_not_at_initial_offset
into new static function:
(update_eliminable_offsets) .
(reload_as_needed): Call update_eliminable_offsetss after calling
find_reloads.
Call forget_old_reloads_1 with contents of reloaded auto_inc
expressions if the actual addressing can't be changed to match the
auto_inc.
(choose_reload_regs): For inheritance, replace
reload_reg_free_before_p test with reload_reg_ions.
(emit_reload_insns): If reload_in is a MEM, set OLD to
reload_in_reg[j].
Don't reload directly from oldequiv; if it's a pseudo with a
stack slot, use reload_in[j].
Check that reload_in_reg[j] is a MEM before replacing reload_in
from reg_reloaded_contents.
Include non-spill registers in reload inheritance processing.
Also try to use reload_out_reg to set spill_reg_store /
reg_last_reload_reg.
In code to set new_spill_reg_store, use single_set to find out if
there is a single set.
Add code that allows to delete optional output reloads.
Add code to allow deletion of output reloads that use no spill reg.
At the end, set reload_override_in to oldequiv.
Also call delete_output_reload if reload_out_reg is equal to old
in oldequiv code.
Add code to call delete_output_reload for stores with no matching load.
Set / use spill_reg_stored_to.
Handle case where secondary output reload uses a temporary, but
actual store isn't found.
When looking for a store of a value not loaded in order to call
delete_output_reload, count_occurences should return 0 for no
loads; but discount inherited input reloadill_reg_stored_to.
Do checks for extra uses of REG. Changed all
callers.
Use delete_address_reloads.
(reload): Take return value of find_reloads into account.
If a no-op set needs more than one reload, delete it.
(reload_reg_free_before_p): RELOAD_FOR_INPUT
can ignore RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS
for the same operand.
(clear_reload_reg_in_use): Check for other reloads that keep a
register in use.
(reload_reg_free_for_value_p): handle RELOAD_FOR_OPERAND_ADDRESS /
RELOAD_FOR_OPADDR_ADDR.
Take into account when an address address reload is only needed
for the address reload we are considering.
(count_occurrences): Use rtx_equal_p for MEMs.
(inc_for_reload): Return instruction that stores into RELOADREG.
New argument two, IN, and rtx. Changed all callers.
(calculate_needs_all_insns, reload_as_needed):
Don't clear after_call for a CLOBBER.
Keep track of how many hard registers need to be copied from
after_call, and don't clear after_call before we have seen
that much copies, or we see a different instruction.
From-SVN: r23143
1998-10-16 21:54:38 +02:00
|
|
|
|
/* Perform whatever substitutions on the operands we are supposed
|
|
|
|
|
to make due to commutativity or replacement of registers
|
|
|
|
|
with equivalent constants or memory slots. */
|
|
|
|
|
|
|
|
|
|
for (i = 0; i < noperands; i++)
|
|
|
|
|
{
|
|
|
|
|
/* We only do this on the last pass through reload, because it is
|
1999-09-01 16:30:35 +02:00
|
|
|
|
possible for some data (like reg_equiv_address) to be changed during
|
|
|
|
|
later passes. Moreover, we loose the opportunity to get a useful
|
|
|
|
|
reload_{in,out}_reg when we do these replacements. */
|
Fix consistency problems with reg_equiv_{mem,address};
Improve reload inheritance;
* reload.c (reload_out_reg): New variable.
(loc_mentioned_in_p, remove_address_replacements): New functions.
(remove_replacements): Deleted.
(push_reload): Set reload_out_reg[i].
When merging, also set reload_{in,out}_reg[i], and remove
duplicate address reloads.
(combine_reloads): Copy reload_out_reg[i].
(find_reloads): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
Include *recog_operand_loc in commutativity operand changes.
Generate optional output reloads.
Delete reference to n_memlocs. Don't set *recog_operand_loc before
processing operands. Call make_memloc in reg_equiv_address code.
Set *recog_operand_loc only after processing operands, and only
if replace is true. Return a value.
When changing address reload types for operands that didn't get
reloaded, use RELOAD_FOR_OPADDR_ADDRESS for
RELOAD_FOR_INPADDR_ADDRESS / RELOAD_FOR_OUTADDR_ADDRESS reloads.
Don't emit USEs for pseudo SUBREGs when not replacing.
(find_reloads_address): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
(find_reloads_toplev): Likewise.
Call make_memloc in reg_equiv_address code.
(debug_reload_to_stream): Add code to output reload_out_reg.
(make_memloc): Delete local variable i, ifdefed out code, and
references to memlocs and n_memlocs.
(memlocs, n_memlocs): Delete.
(push_secondary_reload): Clear reload_out_reg.
(find_reloads_address_1): Provide memrefloc argument to all calls
to find_reloads_address.
In AUTO_INC code, handle non-directly addressable equivalences properly.
* reload.h (reload_out_reg, num_not_at_initial_offset): Declare.
(find_reloads): Add return type.
(remove_address_replacements, deallocate_reload_reg): Declare.
* reload1.c (num_not_at_initial_offset): No longer static.
(delete_address_reloads, delete_address_reloads_1): Likewise.
(deallocate_reload_reg): New function.
(spill_reg_stored_to): New array.
(eliminate_regs): Don't substitute from reg_equiv_memory_loc.
(eliminate_regs_in_insn): Move assignments of previous_offset and
max_offset fields, and recalculation of num_not_at_initial_offset
into new static function:
(update_eliminable_offsets) .
(reload_as_needed): Call update_eliminable_offsetss after calling
find_reloads.
Call forget_old_reloads_1 with contents of reloaded auto_inc
expressions if the actual addressing can't be changed to match the
auto_inc.
(choose_reload_regs): For inheritance, replace
reload_reg_free_before_p test with reload_reg_ions.
(emit_reload_insns): If reload_in is a MEM, set OLD to
reload_in_reg[j].
Don't reload directly from oldequiv; if it's a pseudo with a
stack slot, use reload_in[j].
Check that reload_in_reg[j] is a MEM before replacing reload_in
from reg_reloaded_contents.
Include non-spill registers in reload inheritance processing.
Also try to use reload_out_reg to set spill_reg_store /
reg_last_reload_reg.
In code to set new_spill_reg_store, use single_set to find out if
there is a single set.
Add code that allows to delete optional output reloads.
Add code to allow deletion of output reloads that use no spill reg.
At the end, set reload_override_in to oldequiv.
Also call delete_output_reload if reload_out_reg is equal to old
in oldequiv code.
Add code to call delete_output_reload for stores with no matching load.
Set / use spill_reg_stored_to.
Handle case where secondary output reload uses a temporary, but
actual store isn't found.
When looking for a store of a value not loaded in order to call
delete_output_reload, count_occurences should return 0 for no
loads; but discount inherited input reloadill_reg_stored_to.
Do checks for extra uses of REG. Changed all
callers.
Use delete_address_reloads.
(reload): Take return value of find_reloads into account.
If a no-op set needs more than one reload, delete it.
(reload_reg_free_before_p): RELOAD_FOR_INPUT
can ignore RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS
for the same operand.
(clear_reload_reg_in_use): Check for other reloads that keep a
register in use.
(reload_reg_free_for_value_p): handle RELOAD_FOR_OPERAND_ADDRESS /
RELOAD_FOR_OPADDR_ADDR.
Take into account when an address address reload is only needed
for the address reload we are considering.
(count_occurrences): Use rtx_equal_p for MEMs.
(inc_for_reload): Return instruction that stores into RELOADREG.
New argument two, IN, and rtx. Changed all callers.
(calculate_needs_all_insns, reload_as_needed):
Don't clear after_call for a CLOBBER.
Keep track of how many hard registers need to be copied from
after_call, and don't clear after_call before we have seen
that much copies, or we see a different instruction.
From-SVN: r23143
1998-10-16 21:54:38 +02:00
|
|
|
|
|
|
|
|
|
if (replace)
|
1999-03-15 10:25:01 +01:00
|
|
|
|
{
|
|
|
|
|
rtx substitution = substed_operand[i];
|
|
|
|
|
|
1999-09-12 03:51:28 +02:00
|
|
|
|
*recog_data.operand_loc[i] = substitution;
|
1999-03-15 10:25:01 +01:00
|
|
|
|
|
|
|
|
|
/* If we're replacing an operand with a LABEL_REF, we need
|
|
|
|
|
to make sure that there's a REG_LABEL note attached to
|
|
|
|
|
this instruction. */
|
|
|
|
|
if (GET_CODE (insn) != JUMP_INSN
|
|
|
|
|
&& GET_CODE (substitution) == LABEL_REF
|
|
|
|
|
&& !find_reg_note (insn, REG_LABEL, XEXP (substitution, 0)))
|
2001-08-31 16:49:37 +02:00
|
|
|
|
REG_NOTES (insn) = gen_rtx_INSN_LIST (REG_LABEL,
|
1999-03-15 10:25:01 +01:00
|
|
|
|
XEXP (substitution, 0),
|
|
|
|
|
REG_NOTES (insn));
|
|
|
|
|
}
|
Fix consistency problems with reg_equiv_{mem,address};
Improve reload inheritance;
* reload.c (reload_out_reg): New variable.
(loc_mentioned_in_p, remove_address_replacements): New functions.
(remove_replacements): Deleted.
(push_reload): Set reload_out_reg[i].
When merging, also set reload_{in,out}_reg[i], and remove
duplicate address reloads.
(combine_reloads): Copy reload_out_reg[i].
(find_reloads): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
Include *recog_operand_loc in commutativity operand changes.
Generate optional output reloads.
Delete reference to n_memlocs. Don't set *recog_operand_loc before
processing operands. Call make_memloc in reg_equiv_address code.
Set *recog_operand_loc only after processing operands, and only
if replace is true. Return a value.
When changing address reload types for operands that didn't get
reloaded, use RELOAD_FOR_OPADDR_ADDRESS for
RELOAD_FOR_INPADDR_ADDRESS / RELOAD_FOR_OUTADDR_ADDRESS reloads.
Don't emit USEs for pseudo SUBREGs when not replacing.
(find_reloads_address): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
(find_reloads_toplev): Likewise.
Call make_memloc in reg_equiv_address code.
(debug_reload_to_stream): Add code to output reload_out_reg.
(make_memloc): Delete local variable i, ifdefed out code, and
references to memlocs and n_memlocs.
(memlocs, n_memlocs): Delete.
(push_secondary_reload): Clear reload_out_reg.
(find_reloads_address_1): Provide memrefloc argument to all calls
to find_reloads_address.
In AUTO_INC code, handle non-directly addressable equivalences properly.
* reload.h (reload_out_reg, num_not_at_initial_offset): Declare.
(find_reloads): Add return type.
(remove_address_replacements, deallocate_reload_reg): Declare.
* reload1.c (num_not_at_initial_offset): No longer static.
(delete_address_reloads, delete_address_reloads_1): Likewise.
(deallocate_reload_reg): New function.
(spill_reg_stored_to): New array.
(eliminate_regs): Don't substitute from reg_equiv_memory_loc.
(eliminate_regs_in_insn): Move assignments of previous_offset and
max_offset fields, and recalculation of num_not_at_initial_offset
into new static function:
(update_eliminable_offsets) .
(reload_as_needed): Call update_eliminable_offsetss after calling
find_reloads.
Call forget_old_reloads_1 with contents of reloaded auto_inc
expressions if the actual addressing can't be changed to match the
auto_inc.
(choose_reload_regs): For inheritance, replace
reload_reg_free_before_p test with reload_reg_ions.
(emit_reload_insns): If reload_in is a MEM, set OLD to
reload_in_reg[j].
Don't reload directly from oldequiv; if it's a pseudo with a
stack slot, use reload_in[j].
Check that reload_in_reg[j] is a MEM before replacing reload_in
from reg_reloaded_contents.
Include non-spill registers in reload inheritance processing.
Also try to use reload_out_reg to set spill_reg_store /
reg_last_reload_reg.
In code to set new_spill_reg_store, use single_set to find out if
there is a single set.
Add code that allows to delete optional output reloads.
Add code to allow deletion of output reloads that use no spill reg.
At the end, set reload_override_in to oldequiv.
Also call delete_output_reload if reload_out_reg is equal to old
in oldequiv code.
Add code to call delete_output_reload for stores with no matching load.
Set / use spill_reg_stored_to.
Handle case where secondary output reload uses a temporary, but
actual store isn't found.
When looking for a store of a value not loaded in order to call
delete_output_reload, count_occurences should return 0 for no
loads; but discount inherited input reloadill_reg_stored_to.
Do checks for extra uses of REG. Changed all
callers.
Use delete_address_reloads.
(reload): Take return value of find_reloads into account.
If a no-op set needs more than one reload, delete it.
(reload_reg_free_before_p): RELOAD_FOR_INPUT
can ignore RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS
for the same operand.
(clear_reload_reg_in_use): Check for other reloads that keep a
register in use.
(reload_reg_free_for_value_p): handle RELOAD_FOR_OPERAND_ADDRESS /
RELOAD_FOR_OPADDR_ADDR.
Take into account when an address address reload is only needed
for the address reload we are considering.
(count_occurrences): Use rtx_equal_p for MEMs.
(inc_for_reload): Return instruction that stores into RELOADREG.
New argument two, IN, and rtx. Changed all callers.
(calculate_needs_all_insns, reload_as_needed):
Don't clear after_call for a CLOBBER.
Keep track of how many hard registers need to be copied from
after_call, and don't clear after_call before we have seen
that much copies, or we see a different instruction.
From-SVN: r23143
1998-10-16 21:54:38 +02:00
|
|
|
|
else
|
1999-09-12 03:51:28 +02:00
|
|
|
|
retval |= (substed_operand[i] != *recog_data.operand_loc[i]);
|
Fix consistency problems with reg_equiv_{mem,address};
Improve reload inheritance;
* reload.c (reload_out_reg): New variable.
(loc_mentioned_in_p, remove_address_replacements): New functions.
(remove_replacements): Deleted.
(push_reload): Set reload_out_reg[i].
When merging, also set reload_{in,out}_reg[i], and remove
duplicate address reloads.
(combine_reloads): Copy reload_out_reg[i].
(find_reloads): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
Include *recog_operand_loc in commutativity operand changes.
Generate optional output reloads.
Delete reference to n_memlocs. Don't set *recog_operand_loc before
processing operands. Call make_memloc in reg_equiv_address code.
Set *recog_operand_loc only after processing operands, and only
if replace is true. Return a value.
When changing address reload types for operands that didn't get
reloaded, use RELOAD_FOR_OPADDR_ADDRESS for
RELOAD_FOR_INPADDR_ADDRESS / RELOAD_FOR_OUTADDR_ADDRESS reloads.
Don't emit USEs for pseudo SUBREGs when not replacing.
(find_reloads_address): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
(find_reloads_toplev): Likewise.
Call make_memloc in reg_equiv_address code.
(debug_reload_to_stream): Add code to output reload_out_reg.
(make_memloc): Delete local variable i, ifdefed out code, and
references to memlocs and n_memlocs.
(memlocs, n_memlocs): Delete.
(push_secondary_reload): Clear reload_out_reg.
(find_reloads_address_1): Provide memrefloc argument to all calls
to find_reloads_address.
In AUTO_INC code, handle non-directly addressable equivalences properly.
* reload.h (reload_out_reg, num_not_at_initial_offset): Declare.
(find_reloads): Add return type.
(remove_address_replacements, deallocate_reload_reg): Declare.
* reload1.c (num_not_at_initial_offset): No longer static.
(delete_address_reloads, delete_address_reloads_1): Likewise.
(deallocate_reload_reg): New function.
(spill_reg_stored_to): New array.
(eliminate_regs): Don't substitute from reg_equiv_memory_loc.
(eliminate_regs_in_insn): Move assignments of previous_offset and
max_offset fields, and recalculation of num_not_at_initial_offset
into new static function:
(update_eliminable_offsets) .
(reload_as_needed): Call update_eliminable_offsetss after calling
find_reloads.
Call forget_old_reloads_1 with contents of reloaded auto_inc
expressions if the actual addressing can't be changed to match the
auto_inc.
(choose_reload_regs): For inheritance, replace
reload_reg_free_before_p test with reload_reg_ions.
(emit_reload_insns): If reload_in is a MEM, set OLD to
reload_in_reg[j].
Don't reload directly from oldequiv; if it's a pseudo with a
stack slot, use reload_in[j].
Check that reload_in_reg[j] is a MEM before replacing reload_in
from reg_reloaded_contents.
Include non-spill registers in reload inheritance processing.
Also try to use reload_out_reg to set spill_reg_store /
reg_last_reload_reg.
In code to set new_spill_reg_store, use single_set to find out if
there is a single set.
Add code that allows to delete optional output reloads.
Add code to allow deletion of output reloads that use no spill reg.
At the end, set reload_override_in to oldequiv.
Also call delete_output_reload if reload_out_reg is equal to old
in oldequiv code.
Add code to call delete_output_reload for stores with no matching load.
Set / use spill_reg_stored_to.
Handle case where secondary output reload uses a temporary, but
actual store isn't found.
When looking for a store of a value not loaded in order to call
delete_output_reload, count_occurences should return 0 for no
loads; but discount inherited input reloadill_reg_stored_to.
Do checks for extra uses of REG. Changed all
callers.
Use delete_address_reloads.
(reload): Take return value of find_reloads into account.
If a no-op set needs more than one reload, delete it.
(reload_reg_free_before_p): RELOAD_FOR_INPUT
can ignore RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS
for the same operand.
(clear_reload_reg_in_use): Check for other reloads that keep a
register in use.
(reload_reg_free_for_value_p): handle RELOAD_FOR_OPERAND_ADDRESS /
RELOAD_FOR_OPADDR_ADDR.
Take into account when an address address reload is only needed
for the address reload we are considering.
(count_occurrences): Use rtx_equal_p for MEMs.
(inc_for_reload): Return instruction that stores into RELOADREG.
New argument two, IN, and rtx. Changed all callers.
(calculate_needs_all_insns, reload_as_needed):
Don't clear after_call for a CLOBBER.
Keep track of how many hard registers need to be copied from
after_call, and don't clear after_call before we have seen
that much copies, or we see a different instruction.
From-SVN: r23143
1998-10-16 21:54:38 +02:00
|
|
|
|
}
|
|
|
|
|
|
1992-02-28 11:23:25 +01:00
|
|
|
|
/* If this insn pattern contains any MATCH_DUP's, make sure that
|
|
|
|
|
they will be substituted if the operands they match are substituted.
|
|
|
|
|
Also do now any substitutions we already did on the operands.
|
|
|
|
|
|
|
|
|
|
Don't do this if we aren't making replacements because we might be
|
|
|
|
|
propagating things allocated by frame pointer elimination into places
|
|
|
|
|
it doesn't expect. */
|
|
|
|
|
|
|
|
|
|
if (insn_code_number >= 0 && replace)
|
1999-09-12 14:46:08 +02:00
|
|
|
|
for (i = insn_data[insn_code_number].n_dups - 1; i >= 0; i--)
|
1992-02-28 11:23:25 +01:00
|
|
|
|
{
|
1999-09-12 03:51:28 +02:00
|
|
|
|
int opno = recog_data.dup_num[i];
|
|
|
|
|
*recog_data.dup_loc[i] = *recog_data.operand_loc[opno];
|
1992-02-28 11:23:25 +01:00
|
|
|
|
if (operand_reloadnum[opno] >= 0)
|
1999-09-12 03:51:28 +02:00
|
|
|
|
push_replacement (recog_data.dup_loc[i], operand_reloadnum[opno],
|
1999-09-12 14:46:08 +02:00
|
|
|
|
insn_data[insn_code_number].operand[opno].mode);
|
1992-02-28 11:23:25 +01:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
#if 0
|
|
|
|
|
/* This loses because reloading of prior insns can invalidate the equivalence
|
|
|
|
|
(or at least find_equiv_reg isn't smart enough to find it any more),
|
|
|
|
|
causing this insn to need more reload regs than it needed before.
|
|
|
|
|
It may be too late to make the reload regs available.
|
|
|
|
|
Now this optimization is done safely in choose_reload_regs. */
|
|
|
|
|
|
|
|
|
|
/* For each reload of a reg into some other class of reg,
|
|
|
|
|
search for an existing equivalent reg (same value now) in the right class.
|
|
|
|
|
We can use it as long as we don't need to change its contents. */
|
|
|
|
|
for (i = 0; i < n_reloads; i++)
|
1999-09-12 16:54:56 +02:00
|
|
|
|
if (rld[i].reg_rtx == 0
|
|
|
|
|
&& rld[i].in != 0
|
|
|
|
|
&& GET_CODE (rld[i].in) == REG
|
|
|
|
|
&& rld[i].out == 0)
|
1992-02-28 11:23:25 +01:00
|
|
|
|
{
|
1999-09-12 16:54:56 +02:00
|
|
|
|
rld[i].reg_rtx
|
|
|
|
|
= find_equiv_reg (rld[i].in, insn, rld[i].class, -1,
|
|
|
|
|
static_reload_reg_p, 0, rld[i].inmode);
|
1992-02-28 11:23:25 +01:00
|
|
|
|
/* Prevent generation of insn to load the value
|
|
|
|
|
because the one we found already has the value. */
|
1999-09-12 16:54:56 +02:00
|
|
|
|
if (rld[i].reg_rtx)
|
|
|
|
|
rld[i].in = rld[i].reg_rtx;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
}
|
|
|
|
|
#endif
|
|
|
|
|
|
1993-03-29 13:27:52 +02:00
|
|
|
|
/* Perhaps an output reload can be combined with another
|
|
|
|
|
to reduce needs by one. */
|
|
|
|
|
if (!goal_earlyclobber)
|
|
|
|
|
combine_reloads ();
|
|
|
|
|
|
|
|
|
|
/* If we have a pair of reloads for parts of an address, they are reloading
|
|
|
|
|
the same object, the operands themselves were not reloaded, and they
|
|
|
|
|
are for two operands that are supposed to match, merge the reloads and
|
1996-07-04 00:07:53 +02:00
|
|
|
|
change the type of the surviving reload to RELOAD_FOR_OPERAND_ADDRESS. */
|
1993-03-29 13:27:52 +02:00
|
|
|
|
|
|
|
|
|
for (i = 0; i < n_reloads; i++)
|
|
|
|
|
{
|
|
|
|
|
int k;
|
|
|
|
|
|
|
|
|
|
for (j = i + 1; j < n_reloads; j++)
|
1999-09-12 16:54:56 +02:00
|
|
|
|
if ((rld[i].when_needed == RELOAD_FOR_INPUT_ADDRESS
|
|
|
|
|
|| rld[i].when_needed == RELOAD_FOR_OUTPUT_ADDRESS
|
|
|
|
|
|| rld[i].when_needed == RELOAD_FOR_INPADDR_ADDRESS
|
|
|
|
|
|| rld[i].when_needed == RELOAD_FOR_OUTADDR_ADDRESS)
|
|
|
|
|
&& (rld[j].when_needed == RELOAD_FOR_INPUT_ADDRESS
|
|
|
|
|
|| rld[j].when_needed == RELOAD_FOR_OUTPUT_ADDRESS
|
|
|
|
|
|| rld[j].when_needed == RELOAD_FOR_INPADDR_ADDRESS
|
|
|
|
|
|| rld[j].when_needed == RELOAD_FOR_OUTADDR_ADDRESS)
|
|
|
|
|
&& rtx_equal_p (rld[i].in, rld[j].in)
|
|
|
|
|
&& (operand_reloadnum[rld[i].opnum] < 0
|
|
|
|
|
|| rld[operand_reloadnum[rld[i].opnum]].optional)
|
|
|
|
|
&& (operand_reloadnum[rld[j].opnum] < 0
|
|
|
|
|
|| rld[operand_reloadnum[rld[j].opnum]].optional)
|
|
|
|
|
&& (goal_alternative_matches[rld[i].opnum] == rld[j].opnum
|
|
|
|
|
|| (goal_alternative_matches[rld[j].opnum]
|
|
|
|
|
== rld[i].opnum)))
|
1993-03-29 13:27:52 +02:00
|
|
|
|
{
|
|
|
|
|
for (k = 0; k < n_replacements; k++)
|
|
|
|
|
if (replacements[k].what == j)
|
|
|
|
|
replacements[k].what = i;
|
|
|
|
|
|
1999-09-12 16:54:56 +02:00
|
|
|
|
if (rld[i].when_needed == RELOAD_FOR_INPADDR_ADDRESS
|
|
|
|
|
|| rld[i].when_needed == RELOAD_FOR_OUTADDR_ADDRESS)
|
|
|
|
|
rld[i].when_needed = RELOAD_FOR_OPADDR_ADDR;
|
1997-02-03 19:04:00 +01:00
|
|
|
|
else
|
1999-09-12 16:54:56 +02:00
|
|
|
|
rld[i].when_needed = RELOAD_FOR_OPERAND_ADDRESS;
|
|
|
|
|
rld[j].in = 0;
|
1993-03-29 13:27:52 +02:00
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
1999-09-01 16:30:35 +02:00
|
|
|
|
/* Scan all the reloads and update their type.
|
1993-03-29 13:27:52 +02:00
|
|
|
|
If a reload is for the address of an operand and we didn't reload
|
|
|
|
|
that operand, change the type. Similarly, change the operand number
|
|
|
|
|
of a reload when two operands match. If a reload is optional, treat it
|
|
|
|
|
as though the operand isn't reloaded.
|
|
|
|
|
|
|
|
|
|
??? This latter case is somewhat odd because if we do the optional
|
|
|
|
|
reload, it means the object is hanging around. Thus we need only
|
|
|
|
|
do the address reload if the optional reload was NOT done.
|
|
|
|
|
|
|
|
|
|
Change secondary reloads to be the address type of their operand, not
|
|
|
|
|
the normal type.
|
|
|
|
|
|
|
|
|
|
If an operand's reload is now RELOAD_OTHER, change any
|
|
|
|
|
RELOAD_FOR_INPUT_ADDRESS reloads of that operand to
|
|
|
|
|
RELOAD_FOR_OTHER_ADDRESS. */
|
|
|
|
|
|
|
|
|
|
for (i = 0; i < n_reloads; i++)
|
|
|
|
|
{
|
1999-09-12 16:54:56 +02:00
|
|
|
|
if (rld[i].secondary_p
|
2000-08-29 05:59:00 +02:00
|
|
|
|
&& rld[i].when_needed == operand_type[rld[i].opnum])
|
|
|
|
|
rld[i].when_needed = address_type[rld[i].opnum];
|
1999-09-12 16:54:56 +02:00
|
|
|
|
|
|
|
|
|
if ((rld[i].when_needed == RELOAD_FOR_INPUT_ADDRESS
|
|
|
|
|
|| rld[i].when_needed == RELOAD_FOR_OUTPUT_ADDRESS
|
|
|
|
|
|| rld[i].when_needed == RELOAD_FOR_INPADDR_ADDRESS
|
|
|
|
|
|| rld[i].when_needed == RELOAD_FOR_OUTADDR_ADDRESS)
|
|
|
|
|
&& (operand_reloadnum[rld[i].opnum] < 0
|
|
|
|
|
|| rld[operand_reloadnum[rld[i].opnum]].optional))
|
1994-06-14 23:36:25 +02:00
|
|
|
|
{
|
|
|
|
|
/* If we have a secondary reload to go along with this reload,
|
1996-07-04 00:07:53 +02:00
|
|
|
|
change its type to RELOAD_FOR_OPADDR_ADDR. */
|
1994-06-14 23:36:25 +02:00
|
|
|
|
|
1999-09-12 16:54:56 +02:00
|
|
|
|
if ((rld[i].when_needed == RELOAD_FOR_INPUT_ADDRESS
|
|
|
|
|
|| rld[i].when_needed == RELOAD_FOR_INPADDR_ADDRESS)
|
|
|
|
|
&& rld[i].secondary_in_reload != -1)
|
1994-06-14 23:36:25 +02:00
|
|
|
|
{
|
1999-09-12 16:54:56 +02:00
|
|
|
|
int secondary_in_reload = rld[i].secondary_in_reload;
|
1994-06-14 23:36:25 +02:00
|
|
|
|
|
2000-08-29 23:14:57 +02:00
|
|
|
|
rld[secondary_in_reload].when_needed = RELOAD_FOR_OPADDR_ADDR;
|
1994-06-14 23:36:25 +02:00
|
|
|
|
|
1996-07-04 00:07:53 +02:00
|
|
|
|
/* If there's a tertiary reload we have to change it also. */
|
1994-06-14 23:36:25 +02:00
|
|
|
|
if (secondary_in_reload > 0
|
1999-09-12 16:54:56 +02:00
|
|
|
|
&& rld[secondary_in_reload].secondary_in_reload != -1)
|
|
|
|
|
rld[rld[secondary_in_reload].secondary_in_reload].when_needed
|
2000-08-29 05:59:00 +02:00
|
|
|
|
= RELOAD_FOR_OPADDR_ADDR;
|
1994-06-14 23:36:25 +02:00
|
|
|
|
}
|
|
|
|
|
|
1999-09-12 16:54:56 +02:00
|
|
|
|
if ((rld[i].when_needed == RELOAD_FOR_OUTPUT_ADDRESS
|
|
|
|
|
|| rld[i].when_needed == RELOAD_FOR_OUTADDR_ADDRESS)
|
|
|
|
|
&& rld[i].secondary_out_reload != -1)
|
1994-06-14 23:36:25 +02:00
|
|
|
|
{
|
1999-09-12 16:54:56 +02:00
|
|
|
|
int secondary_out_reload = rld[i].secondary_out_reload;
|
1994-06-14 23:36:25 +02:00
|
|
|
|
|
2000-08-29 23:14:57 +02:00
|
|
|
|
rld[secondary_out_reload].when_needed = RELOAD_FOR_OPADDR_ADDR;
|
1994-06-14 23:36:25 +02:00
|
|
|
|
|
1996-07-04 00:07:53 +02:00
|
|
|
|
/* If there's a tertiary reload we have to change it also. */
|
1994-06-14 23:36:25 +02:00
|
|
|
|
if (secondary_out_reload
|
1999-09-12 16:54:56 +02:00
|
|
|
|
&& rld[secondary_out_reload].secondary_out_reload != -1)
|
|
|
|
|
rld[rld[secondary_out_reload].secondary_out_reload].when_needed
|
2000-08-29 05:59:00 +02:00
|
|
|
|
= RELOAD_FOR_OPADDR_ADDR;
|
1994-06-14 23:36:25 +02:00
|
|
|
|
}
|
1998-04-04 15:32:39 +02:00
|
|
|
|
|
1999-09-12 16:54:56 +02:00
|
|
|
|
if (rld[i].when_needed == RELOAD_FOR_INPADDR_ADDRESS
|
|
|
|
|
|| rld[i].when_needed == RELOAD_FOR_OUTADDR_ADDRESS)
|
|
|
|
|
rld[i].when_needed = RELOAD_FOR_OPADDR_ADDR;
|
Fix consistency problems with reg_equiv_{mem,address};
Improve reload inheritance;
* reload.c (reload_out_reg): New variable.
(loc_mentioned_in_p, remove_address_replacements): New functions.
(remove_replacements): Deleted.
(push_reload): Set reload_out_reg[i].
When merging, also set reload_{in,out}_reg[i], and remove
duplicate address reloads.
(combine_reloads): Copy reload_out_reg[i].
(find_reloads): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
Include *recog_operand_loc in commutativity operand changes.
Generate optional output reloads.
Delete reference to n_memlocs. Don't set *recog_operand_loc before
processing operands. Call make_memloc in reg_equiv_address code.
Set *recog_operand_loc only after processing operands, and only
if replace is true. Return a value.
When changing address reload types for operands that didn't get
reloaded, use RELOAD_FOR_OPADDR_ADDRESS for
RELOAD_FOR_INPADDR_ADDRESS / RELOAD_FOR_OUTADDR_ADDRESS reloads.
Don't emit USEs for pseudo SUBREGs when not replacing.
(find_reloads_address): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
(find_reloads_toplev): Likewise.
Call make_memloc in reg_equiv_address code.
(debug_reload_to_stream): Add code to output reload_out_reg.
(make_memloc): Delete local variable i, ifdefed out code, and
references to memlocs and n_memlocs.
(memlocs, n_memlocs): Delete.
(push_secondary_reload): Clear reload_out_reg.
(find_reloads_address_1): Provide memrefloc argument to all calls
to find_reloads_address.
In AUTO_INC code, handle non-directly addressable equivalences properly.
* reload.h (reload_out_reg, num_not_at_initial_offset): Declare.
(find_reloads): Add return type.
(remove_address_replacements, deallocate_reload_reg): Declare.
* reload1.c (num_not_at_initial_offset): No longer static.
(delete_address_reloads, delete_address_reloads_1): Likewise.
(deallocate_reload_reg): New function.
(spill_reg_stored_to): New array.
(eliminate_regs): Don't substitute from reg_equiv_memory_loc.
(eliminate_regs_in_insn): Move assignments of previous_offset and
max_offset fields, and recalculation of num_not_at_initial_offset
into new static function:
(update_eliminable_offsets) .
(reload_as_needed): Call update_eliminable_offsetss after calling
find_reloads.
Call forget_old_reloads_1 with contents of reloaded auto_inc
expressions if the actual addressing can't be changed to match the
auto_inc.
(choose_reload_regs): For inheritance, replace
reload_reg_free_before_p test with reload_reg_ions.
(emit_reload_insns): If reload_in is a MEM, set OLD to
reload_in_reg[j].
Don't reload directly from oldequiv; if it's a pseudo with a
stack slot, use reload_in[j].
Check that reload_in_reg[j] is a MEM before replacing reload_in
from reg_reloaded_contents.
Include non-spill registers in reload inheritance processing.
Also try to use reload_out_reg to set spill_reg_store /
reg_last_reload_reg.
In code to set new_spill_reg_store, use single_set to find out if
there is a single set.
Add code that allows to delete optional output reloads.
Add code to allow deletion of output reloads that use no spill reg.
At the end, set reload_override_in to oldequiv.
Also call delete_output_reload if reload_out_reg is equal to old
in oldequiv code.
Add code to call delete_output_reload for stores with no matching load.
Set / use spill_reg_stored_to.
Handle case where secondary output reload uses a temporary, but
actual store isn't found.
When looking for a store of a value not loaded in order to call
delete_output_reload, count_occurences should return 0 for no
loads; but discount inherited input reloadill_reg_stored_to.
Do checks for extra uses of REG. Changed all
callers.
Use delete_address_reloads.
(reload): Take return value of find_reloads into account.
If a no-op set needs more than one reload, delete it.
(reload_reg_free_before_p): RELOAD_FOR_INPUT
can ignore RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS
for the same operand.
(clear_reload_reg_in_use): Check for other reloads that keep a
register in use.
(reload_reg_free_for_value_p): handle RELOAD_FOR_OPERAND_ADDRESS /
RELOAD_FOR_OPADDR_ADDR.
Take into account when an address address reload is only needed
for the address reload we are considering.
(count_occurrences): Use rtx_equal_p for MEMs.
(inc_for_reload): Return instruction that stores into RELOADREG.
New argument two, IN, and rtx. Changed all callers.
(calculate_needs_all_insns, reload_as_needed):
Don't clear after_call for a CLOBBER.
Keep track of how many hard registers need to be copied from
after_call, and don't clear after_call before we have seen
that much copies, or we see a different instruction.
From-SVN: r23143
1998-10-16 21:54:38 +02:00
|
|
|
|
else
|
1999-09-12 16:54:56 +02:00
|
|
|
|
rld[i].when_needed = RELOAD_FOR_OPERAND_ADDRESS;
|
1994-06-14 23:36:25 +02:00
|
|
|
|
}
|
1993-03-29 13:27:52 +02:00
|
|
|
|
|
1999-09-12 16:54:56 +02:00
|
|
|
|
if ((rld[i].when_needed == RELOAD_FOR_INPUT_ADDRESS
|
|
|
|
|
|| rld[i].when_needed == RELOAD_FOR_INPADDR_ADDRESS)
|
|
|
|
|
&& operand_reloadnum[rld[i].opnum] >= 0
|
|
|
|
|
&& (rld[operand_reloadnum[rld[i].opnum]].when_needed
|
1993-03-29 13:27:52 +02:00
|
|
|
|
== RELOAD_OTHER))
|
1999-09-12 16:54:56 +02:00
|
|
|
|
rld[i].when_needed = RELOAD_FOR_OTHER_ADDRESS;
|
1993-03-29 13:27:52 +02:00
|
|
|
|
|
1999-09-12 16:54:56 +02:00
|
|
|
|
if (goal_alternative_matches[rld[i].opnum] >= 0)
|
|
|
|
|
rld[i].opnum = goal_alternative_matches[rld[i].opnum];
|
1993-03-29 13:27:52 +02:00
|
|
|
|
}
|
|
|
|
|
|
1997-08-19 18:04:22 +02:00
|
|
|
|
/* Scan all the reloads, and check for RELOAD_FOR_OPERAND_ADDRESS reloads.
|
|
|
|
|
If we have more than one, then convert all RELOAD_FOR_OPADDR_ADDR
|
|
|
|
|
reloads to RELOAD_FOR_OPERAND_ADDRESS reloads.
|
|
|
|
|
|
|
|
|
|
choose_reload_regs assumes that RELOAD_FOR_OPADDR_ADDR reloads never
|
|
|
|
|
conflict with RELOAD_FOR_OPERAND_ADDRESS reloads. This is true for a
|
|
|
|
|
single pair of RELOAD_FOR_OPADDR_ADDR/RELOAD_FOR_OPERAND_ADDRESS reloads.
|
|
|
|
|
However, if there is more than one RELOAD_FOR_OPERAND_ADDRESS reload,
|
|
|
|
|
then a RELOAD_FOR_OPADDR_ADDR reload conflicts with all
|
|
|
|
|
RELOAD_FOR_OPERAND_ADDRESS reloads other than the one that uses it.
|
|
|
|
|
This is complicated by the fact that a single operand can have more
|
|
|
|
|
than one RELOAD_FOR_OPERAND_ADDRESS reload. It is very difficult to fix
|
|
|
|
|
choose_reload_regs without affecting code quality, and cases that
|
|
|
|
|
actually fail are extremely rare, so it turns out to be better to fix
|
|
|
|
|
the problem here by not generating cases that choose_reload_regs will
|
|
|
|
|
fail for. */
|
1998-09-08 15:42:58 +02:00
|
|
|
|
/* There is a similar problem with RELOAD_FOR_INPUT_ADDRESS /
|
1998-07-01 15:20:50 +02:00
|
|
|
|
RELOAD_FOR_OUTPUT_ADDRESS when there is more than one of a kind for
|
|
|
|
|
a single operand.
|
|
|
|
|
We can reduce the register pressure by exploiting that a
|
|
|
|
|
RELOAD_FOR_X_ADDR_ADDR that precedes all RELOAD_FOR_X_ADDRESS reloads
|
1998-09-24 12:51:35 +02:00
|
|
|
|
does not conflict with any of them, if it is only used for the first of
|
|
|
|
|
the RELOAD_FOR_X_ADDRESS reloads. */
|
1997-08-19 18:04:22 +02:00
|
|
|
|
{
|
1998-07-01 15:20:50 +02:00
|
|
|
|
int first_op_addr_num = -2;
|
|
|
|
|
int first_inpaddr_num[MAX_RECOG_OPERANDS];
|
|
|
|
|
int first_outpaddr_num[MAX_RECOG_OPERANDS];
|
2000-08-29 23:14:57 +02:00
|
|
|
|
int need_change = 0;
|
1998-07-01 15:20:50 +02:00
|
|
|
|
/* We use last_op_addr_reload and the contents of the above arrays
|
|
|
|
|
first as flags - -2 means no instance encountered, -1 means exactly
|
|
|
|
|
one instance encountered.
|
|
|
|
|
If more than one instance has been encountered, we store the reload
|
|
|
|
|
number of the first reload of the kind in question; reload numbers
|
|
|
|
|
are known to be non-negative. */
|
|
|
|
|
for (i = 0; i < noperands; i++)
|
|
|
|
|
first_inpaddr_num[i] = first_outpaddr_num[i] = -2;
|
|
|
|
|
for (i = n_reloads - 1; i >= 0; i--)
|
|
|
|
|
{
|
1999-09-12 16:54:56 +02:00
|
|
|
|
switch (rld[i].when_needed)
|
1998-07-01 15:20:50 +02:00
|
|
|
|
{
|
|
|
|
|
case RELOAD_FOR_OPERAND_ADDRESS:
|
1998-09-24 12:51:35 +02:00
|
|
|
|
if (++first_op_addr_num >= 0)
|
1998-07-01 15:20:50 +02:00
|
|
|
|
{
|
1998-09-24 12:51:35 +02:00
|
|
|
|
first_op_addr_num = i;
|
1998-07-01 15:20:50 +02:00
|
|
|
|
need_change = 1;
|
|
|
|
|
}
|
|
|
|
|
break;
|
|
|
|
|
case RELOAD_FOR_INPUT_ADDRESS:
|
1999-09-12 16:54:56 +02:00
|
|
|
|
if (++first_inpaddr_num[rld[i].opnum] >= 0)
|
1998-07-01 15:20:50 +02:00
|
|
|
|
{
|
1999-09-12 16:54:56 +02:00
|
|
|
|
first_inpaddr_num[rld[i].opnum] = i;
|
1998-07-01 15:20:50 +02:00
|
|
|
|
need_change = 1;
|
|
|
|
|
}
|
|
|
|
|
break;
|
|
|
|
|
case RELOAD_FOR_OUTPUT_ADDRESS:
|
1999-09-12 16:54:56 +02:00
|
|
|
|
if (++first_outpaddr_num[rld[i].opnum] >= 0)
|
1998-07-01 15:20:50 +02:00
|
|
|
|
{
|
1999-09-12 16:54:56 +02:00
|
|
|
|
first_outpaddr_num[rld[i].opnum] = i;
|
1998-07-01 15:20:50 +02:00
|
|
|
|
need_change = 1;
|
|
|
|
|
}
|
|
|
|
|
break;
|
|
|
|
|
default:
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
}
|
1997-08-19 18:04:22 +02:00
|
|
|
|
|
1998-07-01 15:20:50 +02:00
|
|
|
|
if (need_change)
|
|
|
|
|
{
|
|
|
|
|
for (i = 0; i < n_reloads; i++)
|
|
|
|
|
{
|
2000-02-19 02:27:00 +01:00
|
|
|
|
int first_num;
|
|
|
|
|
enum reload_type type;
|
1998-07-01 15:20:50 +02:00
|
|
|
|
|
1999-09-12 16:54:56 +02:00
|
|
|
|
switch (rld[i].when_needed)
|
1998-07-01 15:20:50 +02:00
|
|
|
|
{
|
|
|
|
|
case RELOAD_FOR_OPADDR_ADDR:
|
|
|
|
|
first_num = first_op_addr_num;
|
|
|
|
|
type = RELOAD_FOR_OPERAND_ADDRESS;
|
|
|
|
|
break;
|
|
|
|
|
case RELOAD_FOR_INPADDR_ADDRESS:
|
1999-09-12 16:54:56 +02:00
|
|
|
|
first_num = first_inpaddr_num[rld[i].opnum];
|
1998-07-01 15:20:50 +02:00
|
|
|
|
type = RELOAD_FOR_INPUT_ADDRESS;
|
|
|
|
|
break;
|
|
|
|
|
case RELOAD_FOR_OUTADDR_ADDRESS:
|
1999-09-12 16:54:56 +02:00
|
|
|
|
first_num = first_outpaddr_num[rld[i].opnum];
|
1998-07-01 15:20:50 +02:00
|
|
|
|
type = RELOAD_FOR_OUTPUT_ADDRESS;
|
|
|
|
|
break;
|
|
|
|
|
default:
|
|
|
|
|
continue;
|
|
|
|
|
}
|
1998-09-24 12:51:35 +02:00
|
|
|
|
if (first_num < 0)
|
|
|
|
|
continue;
|
|
|
|
|
else if (i > first_num)
|
1999-09-12 16:54:56 +02:00
|
|
|
|
rld[i].when_needed = type;
|
1998-09-24 12:51:35 +02:00
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
/* Check if the only TYPE reload that uses reload I is
|
|
|
|
|
reload FIRST_NUM. */
|
|
|
|
|
for (j = n_reloads - 1; j > first_num; j--)
|
|
|
|
|
{
|
1999-09-12 16:54:56 +02:00
|
|
|
|
if (rld[j].when_needed == type
|
|
|
|
|
&& (rld[i].secondary_p
|
|
|
|
|
? rld[j].secondary_in_reload == i
|
|
|
|
|
: reg_mentioned_p (rld[i].in, rld[j].in)))
|
1998-09-24 12:51:35 +02:00
|
|
|
|
{
|
1999-09-12 16:54:56 +02:00
|
|
|
|
rld[i].when_needed = type;
|
1998-09-24 12:51:35 +02:00
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
1998-07-01 15:20:50 +02:00
|
|
|
|
}
|
|
|
|
|
}
|
1997-08-19 18:04:22 +02:00
|
|
|
|
}
|
|
|
|
|
|
1993-03-29 13:27:52 +02:00
|
|
|
|
/* See if we have any reloads that are now allowed to be merged
|
|
|
|
|
because we've changed when the reload is needed to
|
|
|
|
|
RELOAD_FOR_OPERAND_ADDRESS or RELOAD_FOR_OTHER_ADDRESS. Only
|
|
|
|
|
check for the most common cases. */
|
|
|
|
|
|
|
|
|
|
for (i = 0; i < n_reloads; i++)
|
1999-09-12 16:54:56 +02:00
|
|
|
|
if (rld[i].in != 0 && rld[i].out == 0
|
|
|
|
|
&& (rld[i].when_needed == RELOAD_FOR_OPERAND_ADDRESS
|
|
|
|
|
|| rld[i].when_needed == RELOAD_FOR_OPADDR_ADDR
|
|
|
|
|
|| rld[i].when_needed == RELOAD_FOR_OTHER_ADDRESS))
|
1993-03-29 13:27:52 +02:00
|
|
|
|
for (j = 0; j < n_reloads; j++)
|
1999-09-12 16:54:56 +02:00
|
|
|
|
if (i != j && rld[j].in != 0 && rld[j].out == 0
|
|
|
|
|
&& rld[j].when_needed == rld[i].when_needed
|
|
|
|
|
&& MATCHES (rld[i].in, rld[j].in)
|
|
|
|
|
&& rld[i].class == rld[j].class
|
|
|
|
|
&& !rld[i].nocombine && !rld[j].nocombine
|
|
|
|
|
&& rld[i].reg_rtx == rld[j].reg_rtx)
|
1993-03-29 13:27:52 +02:00
|
|
|
|
{
|
1999-09-12 16:54:56 +02:00
|
|
|
|
rld[i].opnum = MIN (rld[i].opnum, rld[j].opnum);
|
1993-03-29 13:27:52 +02:00
|
|
|
|
transfer_replacements (i, j);
|
1999-09-12 16:54:56 +02:00
|
|
|
|
rld[j].in = 0;
|
1993-03-29 13:27:52 +02:00
|
|
|
|
}
|
|
|
|
|
|
[multiple changes]
Fri Oct 29 15:25:07 1999 Arnaud Charlet <charlet@ACT-Europe.FR>
* gcov.c (DIR_SEPARATOR): Provide default.
(output_data): Add test for MS-DOS format absolute filename.
(fancy_abort): Correct program name.
(open_files): Open all files in binary mode.
* libgcc2.c (__bb_exit_func): Likewise.
* profile.c (init_branch_prob): Specify binary when opening files.
* flags.h (flag_unwind_tables): New decl.
* toplev.c (flag_unwind_table): New definition.
(f_options): Add -funwind-tables.
(decode_g_option): Clarify warning when unknown -g option is given.
(rest_of_compilation): If inside an inlined external function,
pretend we are just being declared.
* dwarf2out.c (dwarf2out_do_frame): Check -funwind_tables.
(dwarf2out_frame_finish): Likewise.
Fri Oct 29 06:32:44 1999 Geoffrey Keating <geoffk@cygnus.com>
* flow.c (propagate_block): When the last reference to a label
before an ADDR_VEC is deleted because the reference is a dead
store, delete the ADDR_VEC.
Fri Oct 29 07:44:26 1999 Vasco Pedro <vp@di.fct.unl.pt>
* fold-const.c (merge_ranges): In not in0, but in1, handle
upper bounds equal like subset case.
Thu Oct 28 19:22:24 1999 Douglas Rupp <rupp@gnat.com>
* dbxout.c (dbxout_parms): Generate a second stabs line for parameters
passed in a register but moved to the stack.
Thu Oct 28 19:12:57 1999 Sam Tardieu <tardieu@act-europe.fr>
* gcc.c (pass_exit_codes, greatest_status): New variables.
(struct option_map): Add entry for "--pass-exit-codes".
(execute): Update greatest_status if error.
(display_help): Add documentation for -pass-exit-codes.
(process_command): Handle -pass-exit-codes.
(main): Look at pass_exit_codes and greatest_status on call to exit.
Thu Oct 28 18:06:50 1999 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
* reload.c (find_reloads): Refine test for no input reload
case to not includes reloads emitted after insn.
* function.c (find_temp_slots_from_address): Handle sum involving
a register that points to a temp slot.
(update_temp_slot_address): Make recursive call if both old and
new are PLUS with a common operand.
* calls.c (expand_call): Mark temp slot for result as having
address taken.
* rtlanal.c (reg_referenced_p, case IF_THEN_ELSE): New case.
* gcc.c (process_command): Add standard_exec_prefix with "GCC"
component as well as "BINUTILS".
* integrate.h (copy_rtx_and_substitute): New arg, FOR_LHS.
* integrate.c (copy_rtx_and_substitute): Likewise.
(expand_inline_function, integrate_parm_decls, integrate_decl_tree):
All callers changed.
* unroll.c (inital_reg_note_copy, copy_loop_body): Likewise.
* dbxout.c (dbxout_type, case INTEGER_TYPE_NODE): If can use
gdb extensions, write size of type; also be more consistent
in using references when this is a subtype.
* pa.md (extv, extzv, insv): Use define_expand to reject constant
that is out of range.
* loop.c (unknown_constant_address_altered): New variable.
(prescan_loop): Initialize it.
(note_addr_stored): Set it for RTX_UNCHANGING_P MEM.
(invariant_p, case MEM): Remove handling for volatile and readony;
check new variable if readonly.
(check_dbra_loop): Chdeck unknown_constant_address_altered.
* cse.c (canon_hash, case MEM): Do not record if BLKmode.
(addr_affects_sp_p): Removed from note_mem_written and only
define #ifdef AUTO_INC_DEC.
* alpha.c (input_operand, case ADDRESSOF): Treat as REG.
* regclass.c (record_reg_classes): Properly handle register move
directions.
* varasm.c (initializer_constant_valid_p, case MINUS_EXPR):
Don't think valid if both operands are invalid.
(struct constant_descriptor): New field RTL.
(mark_const_hash_entry): Mark it.
(record_constant{,_rtx}): Initialize it.
(output_constant_def): Allocate RTL in permanent obstack and
save in table.
({record,compare}_constant_1): Modes must match for
CONSTRUCTOR of ARRAY_TYPE.
* c-common.h (initializer_constant_valid_p): Delete decl from here.
* output.h (initializer_constant_valid_p): Move decl to here.
* c-common.c (initializer_constant_valid_p): Delete function from here.
* varasm.c (initializer_constant_valid_p): Move function to here.
* tree.h (STRIP_SIGN_NOPS): New macro.
* fold-const.c (optimize_minmax_comparison): New function.
(invert_truthvalue, case WITH_RECORD_EXPR): New case.
(fold): Use STRIP_SIGN_NOPS instead of STRIP_TYPE_NOPS.
(fold, case EQ_EXPR): Call optimize_minmax_comparison and add
cases with ABS_EXPR, NEGATE_EXPR, PLUS_EXPR, MINUS_EXPR, and
widening conversions.
(fold, case LE_EXPR): Rework changing unsigned to signed comparisons
to look at size of mode, not precision of type; also add missing cases.
(optimize_bit_field_compare, decode_field_reference): Don't try to
optimize COMPONENT_REF of a PLACEHOLDER_EXPR.
* dwarf2out.c (ctype.h): Include.
(dwarf2out_set_demangle_name_func): New function.
(size_of_line_info): Deleted.
(output_line_info): Compute size of line info table from difference
of labels.
(base_type_die, add_name_attribute): Call demangle function, if any.
(field_byte_offset): Use bits per word for variable length fields.
(gen_array_type_die): Add array name.
(gen_subprogram_die): Ignore DECL_INLINE if -fno-inline.
(dwarf2out_add_library_unit_info): New function.
* explow.c (set_stack_check_libfunc): New function.
(stack_check_libfunc): New static variable.
(probe_stack_range): Allow front-end to set up a libfunc to call.
* combine.c (simplify_comparison): When making comparison in wider
mode, check for having commuted an AND and a SUBREG.
(contains_muldiv): New function.
(try_combine): Call it when dividing a PARALLEL.
(simplify_rtx, case TRUNCATE): Don't remove for umulsi3_highpart.
(simplify_comparison, case ASHIFTRT): Recognize sign-extension of
a PLUS.
(record_value_for_reg): If TEM is a binary operation with two CLOBBERs,
use one of the CLOBBERs instead.
(if_then_else_cond): If comparing against zero, just return thing
being compared.
* optabs.c (expand_abs): If machine has MAX, ABS (x) is MAX (x, -x).
Don't generate shifts and subtract if have conditional arithmetic.
* rtl.h (delete_barrier): New declaration.
* jump.c (jump_optimize): Set up to handle conditional call.
In conditional arithmetic case, handle CALL_INSN followed by a BARRIER.
(delete_barrier): New function.
* rtl.c (read_rtx): Call fatal if bad RTL code; check for bad mode.
* recog.c (nonmemory_operand): Accept ADDRESSOF.
* tree.c (build_type_attribute_variant): Push to obstack of
ttype around type_hash_canon call.
* expr.c (placeholder_list): Move decl to file scope.
(expand_expr): Don't force access to volatile just because its
address is taken.
If ignoring reference operations, just expand the operands.
(expand_expr, case COMPONENT_REF): Propagate
EXPAND_CONST_ADDRESS to recursive call when expanding inner.
Refine test for using bitfield operations vs pointer punning.
(expand_expr, case CONVERT_EXPR): If converting to
BLKmode UNION_TYPE from BLKmode, just return inner object.
Use proper mode in store_field call.
Properly set sizes of object to store and total size in store_field
call for convert to union.
(expand_expr, case ARRAY_REF): If OP0 is in a register, put it in
memory (like for ADDR_EXPR). Also, don't put constant in register if
we'll want it in memory.
(readonly_fields_p): New function.
(expand_expr, case INDIRECT_REF): Call it if LHS.
(expand_assignment): Handle a RESULT_DECL where
DECL_RTL is a PARALLEL.
(do_jump, case WITH_RECORD_EXPR): New case.
(get_inner_reference): Always go inside a CONVERT_EXPR
and NOP_EXPR if both modes are the same.
(store_field): Use bitfield operations if size of bitsize is not same
as size of RHS's type.
Check for bitpos not a multiple of alignment in BLKmode case.
Do block move in largest possible alignment.
(store_constructor): Set BITSIZE to -1 for variable size and properly
in case of array of BLKmode.
(expand_expr_unaligned): New function.
(do_compare_and_jump): Call it.
* mips/iris5.h (SWITCHES_NEED_SPACES): New macro.
* collect2.c (main): Only allow -ofoo if SWITCHES_NEED_SPACES
does not include 'o'.
* function.c (instantiate_virtual_regs_1, case SET): Handle case where
both SET_DEST and SET_SRC reference a virtual register.
(gen_mem_addressof): Copy RTX_UNCHANGING_P from new REG to old REG.
* integrate.c (expand_inline_function): Handle case of setting
virtual stack vars register (from built in setjmp); when parameter
lives in memory, expand virtual_{stack_vars,incoming_args}_rtx early.
(subst_constant): Add new parm, MEMONLY.
(expand_inline_function, integrate_parm_decls): Pass new parm.
(integrate_decl_tree): Likewise.
(copy_rtx_and_substitute, case MEM): Do copy RTX_UNCHANGING_P.
(try_constants): Call subst_constants twice, with MEMONLY 0 and 1.
(copy_rtx_and_substitute, case SET): Add explicit calls to
copy_rtx_and_substitute for both sides.
* stmt.c (expand_asm_operands): Don't use TREE_STRING_LENGTH for
constraints.
(pushcase{,_range}): Convert to NOMINAL_TYPE after checking for
within INDEX_TYPE, instead of before.
(fixup_gotos): Use f->target_rtl, not the next insn,
since latter may be from a later fixup.
(expand_value_return): Correctly convert VAL when promoting function
return; support RETURN_REG being a PARALLEL.
(expand_return): When checking for result in regs and having
cleanup, consider PARALLEL in DECL_RTL as being in regs.
From-SVN: r30299
1999-11-01 02:11:22 +01:00
|
|
|
|
#ifdef HAVE_cc0
|
|
|
|
|
/* If we made any reloads for addresses, see if they violate a
|
|
|
|
|
"no input reloads" requirement for this insn. But loads that we
|
|
|
|
|
do after the insn (such as for output addresses) are fine. */
|
|
|
|
|
if (no_input_reloads)
|
|
|
|
|
for (i = 0; i < n_reloads; i++)
|
1999-11-03 13:43:35 +01:00
|
|
|
|
if (rld[i].in != 0
|
|
|
|
|
&& rld[i].when_needed != RELOAD_FOR_OUTADDR_ADDRESS
|
|
|
|
|
&& rld[i].when_needed != RELOAD_FOR_OUTPUT_ADDRESS)
|
[multiple changes]
Fri Oct 29 15:25:07 1999 Arnaud Charlet <charlet@ACT-Europe.FR>
* gcov.c (DIR_SEPARATOR): Provide default.
(output_data): Add test for MS-DOS format absolute filename.
(fancy_abort): Correct program name.
(open_files): Open all files in binary mode.
* libgcc2.c (__bb_exit_func): Likewise.
* profile.c (init_branch_prob): Specify binary when opening files.
* flags.h (flag_unwind_tables): New decl.
* toplev.c (flag_unwind_table): New definition.
(f_options): Add -funwind-tables.
(decode_g_option): Clarify warning when unknown -g option is given.
(rest_of_compilation): If inside an inlined external function,
pretend we are just being declared.
* dwarf2out.c (dwarf2out_do_frame): Check -funwind_tables.
(dwarf2out_frame_finish): Likewise.
Fri Oct 29 06:32:44 1999 Geoffrey Keating <geoffk@cygnus.com>
* flow.c (propagate_block): When the last reference to a label
before an ADDR_VEC is deleted because the reference is a dead
store, delete the ADDR_VEC.
Fri Oct 29 07:44:26 1999 Vasco Pedro <vp@di.fct.unl.pt>
* fold-const.c (merge_ranges): In not in0, but in1, handle
upper bounds equal like subset case.
Thu Oct 28 19:22:24 1999 Douglas Rupp <rupp@gnat.com>
* dbxout.c (dbxout_parms): Generate a second stabs line for parameters
passed in a register but moved to the stack.
Thu Oct 28 19:12:57 1999 Sam Tardieu <tardieu@act-europe.fr>
* gcc.c (pass_exit_codes, greatest_status): New variables.
(struct option_map): Add entry for "--pass-exit-codes".
(execute): Update greatest_status if error.
(display_help): Add documentation for -pass-exit-codes.
(process_command): Handle -pass-exit-codes.
(main): Look at pass_exit_codes and greatest_status on call to exit.
Thu Oct 28 18:06:50 1999 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
* reload.c (find_reloads): Refine test for no input reload
case to not includes reloads emitted after insn.
* function.c (find_temp_slots_from_address): Handle sum involving
a register that points to a temp slot.
(update_temp_slot_address): Make recursive call if both old and
new are PLUS with a common operand.
* calls.c (expand_call): Mark temp slot for result as having
address taken.
* rtlanal.c (reg_referenced_p, case IF_THEN_ELSE): New case.
* gcc.c (process_command): Add standard_exec_prefix with "GCC"
component as well as "BINUTILS".
* integrate.h (copy_rtx_and_substitute): New arg, FOR_LHS.
* integrate.c (copy_rtx_and_substitute): Likewise.
(expand_inline_function, integrate_parm_decls, integrate_decl_tree):
All callers changed.
* unroll.c (inital_reg_note_copy, copy_loop_body): Likewise.
* dbxout.c (dbxout_type, case INTEGER_TYPE_NODE): If can use
gdb extensions, write size of type; also be more consistent
in using references when this is a subtype.
* pa.md (extv, extzv, insv): Use define_expand to reject constant
that is out of range.
* loop.c (unknown_constant_address_altered): New variable.
(prescan_loop): Initialize it.
(note_addr_stored): Set it for RTX_UNCHANGING_P MEM.
(invariant_p, case MEM): Remove handling for volatile and readony;
check new variable if readonly.
(check_dbra_loop): Chdeck unknown_constant_address_altered.
* cse.c (canon_hash, case MEM): Do not record if BLKmode.
(addr_affects_sp_p): Removed from note_mem_written and only
define #ifdef AUTO_INC_DEC.
* alpha.c (input_operand, case ADDRESSOF): Treat as REG.
* regclass.c (record_reg_classes): Properly handle register move
directions.
* varasm.c (initializer_constant_valid_p, case MINUS_EXPR):
Don't think valid if both operands are invalid.
(struct constant_descriptor): New field RTL.
(mark_const_hash_entry): Mark it.
(record_constant{,_rtx}): Initialize it.
(output_constant_def): Allocate RTL in permanent obstack and
save in table.
({record,compare}_constant_1): Modes must match for
CONSTRUCTOR of ARRAY_TYPE.
* c-common.h (initializer_constant_valid_p): Delete decl from here.
* output.h (initializer_constant_valid_p): Move decl to here.
* c-common.c (initializer_constant_valid_p): Delete function from here.
* varasm.c (initializer_constant_valid_p): Move function to here.
* tree.h (STRIP_SIGN_NOPS): New macro.
* fold-const.c (optimize_minmax_comparison): New function.
(invert_truthvalue, case WITH_RECORD_EXPR): New case.
(fold): Use STRIP_SIGN_NOPS instead of STRIP_TYPE_NOPS.
(fold, case EQ_EXPR): Call optimize_minmax_comparison and add
cases with ABS_EXPR, NEGATE_EXPR, PLUS_EXPR, MINUS_EXPR, and
widening conversions.
(fold, case LE_EXPR): Rework changing unsigned to signed comparisons
to look at size of mode, not precision of type; also add missing cases.
(optimize_bit_field_compare, decode_field_reference): Don't try to
optimize COMPONENT_REF of a PLACEHOLDER_EXPR.
* dwarf2out.c (ctype.h): Include.
(dwarf2out_set_demangle_name_func): New function.
(size_of_line_info): Deleted.
(output_line_info): Compute size of line info table from difference
of labels.
(base_type_die, add_name_attribute): Call demangle function, if any.
(field_byte_offset): Use bits per word for variable length fields.
(gen_array_type_die): Add array name.
(gen_subprogram_die): Ignore DECL_INLINE if -fno-inline.
(dwarf2out_add_library_unit_info): New function.
* explow.c (set_stack_check_libfunc): New function.
(stack_check_libfunc): New static variable.
(probe_stack_range): Allow front-end to set up a libfunc to call.
* combine.c (simplify_comparison): When making comparison in wider
mode, check for having commuted an AND and a SUBREG.
(contains_muldiv): New function.
(try_combine): Call it when dividing a PARALLEL.
(simplify_rtx, case TRUNCATE): Don't remove for umulsi3_highpart.
(simplify_comparison, case ASHIFTRT): Recognize sign-extension of
a PLUS.
(record_value_for_reg): If TEM is a binary operation with two CLOBBERs,
use one of the CLOBBERs instead.
(if_then_else_cond): If comparing against zero, just return thing
being compared.
* optabs.c (expand_abs): If machine has MAX, ABS (x) is MAX (x, -x).
Don't generate shifts and subtract if have conditional arithmetic.
* rtl.h (delete_barrier): New declaration.
* jump.c (jump_optimize): Set up to handle conditional call.
In conditional arithmetic case, handle CALL_INSN followed by a BARRIER.
(delete_barrier): New function.
* rtl.c (read_rtx): Call fatal if bad RTL code; check for bad mode.
* recog.c (nonmemory_operand): Accept ADDRESSOF.
* tree.c (build_type_attribute_variant): Push to obstack of
ttype around type_hash_canon call.
* expr.c (placeholder_list): Move decl to file scope.
(expand_expr): Don't force access to volatile just because its
address is taken.
If ignoring reference operations, just expand the operands.
(expand_expr, case COMPONENT_REF): Propagate
EXPAND_CONST_ADDRESS to recursive call when expanding inner.
Refine test for using bitfield operations vs pointer punning.
(expand_expr, case CONVERT_EXPR): If converting to
BLKmode UNION_TYPE from BLKmode, just return inner object.
Use proper mode in store_field call.
Properly set sizes of object to store and total size in store_field
call for convert to union.
(expand_expr, case ARRAY_REF): If OP0 is in a register, put it in
memory (like for ADDR_EXPR). Also, don't put constant in register if
we'll want it in memory.
(readonly_fields_p): New function.
(expand_expr, case INDIRECT_REF): Call it if LHS.
(expand_assignment): Handle a RESULT_DECL where
DECL_RTL is a PARALLEL.
(do_jump, case WITH_RECORD_EXPR): New case.
(get_inner_reference): Always go inside a CONVERT_EXPR
and NOP_EXPR if both modes are the same.
(store_field): Use bitfield operations if size of bitsize is not same
as size of RHS's type.
Check for bitpos not a multiple of alignment in BLKmode case.
Do block move in largest possible alignment.
(store_constructor): Set BITSIZE to -1 for variable size and properly
in case of array of BLKmode.
(expand_expr_unaligned): New function.
(do_compare_and_jump): Call it.
* mips/iris5.h (SWITCHES_NEED_SPACES): New macro.
* collect2.c (main): Only allow -ofoo if SWITCHES_NEED_SPACES
does not include 'o'.
* function.c (instantiate_virtual_regs_1, case SET): Handle case where
both SET_DEST and SET_SRC reference a virtual register.
(gen_mem_addressof): Copy RTX_UNCHANGING_P from new REG to old REG.
* integrate.c (expand_inline_function): Handle case of setting
virtual stack vars register (from built in setjmp); when parameter
lives in memory, expand virtual_{stack_vars,incoming_args}_rtx early.
(subst_constant): Add new parm, MEMONLY.
(expand_inline_function, integrate_parm_decls): Pass new parm.
(integrate_decl_tree): Likewise.
(copy_rtx_and_substitute, case MEM): Do copy RTX_UNCHANGING_P.
(try_constants): Call subst_constants twice, with MEMONLY 0 and 1.
(copy_rtx_and_substitute, case SET): Add explicit calls to
copy_rtx_and_substitute for both sides.
* stmt.c (expand_asm_operands): Don't use TREE_STRING_LENGTH for
constraints.
(pushcase{,_range}): Convert to NOMINAL_TYPE after checking for
within INDEX_TYPE, instead of before.
(fixup_gotos): Use f->target_rtl, not the next insn,
since latter may be from a later fixup.
(expand_value_return): Correctly convert VAL when promoting function
return; support RETURN_REG being a PARALLEL.
(expand_return): When checking for result in regs and having
cleanup, consider PARALLEL in DECL_RTL as being in regs.
From-SVN: r30299
1999-11-01 02:11:22 +01:00
|
|
|
|
abort ();
|
|
|
|
|
#endif
|
|
|
|
|
|
1999-10-26 15:45:31 +02:00
|
|
|
|
/* Compute reload_mode and reload_nregs. */
|
|
|
|
|
for (i = 0; i < n_reloads; i++)
|
|
|
|
|
{
|
|
|
|
|
rld[i].mode
|
|
|
|
|
= (rld[i].inmode == VOIDmode
|
|
|
|
|
|| (GET_MODE_SIZE (rld[i].outmode)
|
|
|
|
|
> GET_MODE_SIZE (rld[i].inmode)))
|
|
|
|
|
? rld[i].outmode : rld[i].inmode;
|
|
|
|
|
|
|
|
|
|
rld[i].nregs = CLASS_MAX_NREGS (rld[i].class, rld[i].mode);
|
|
|
|
|
}
|
|
|
|
|
|
2002-01-13 23:57:29 +01:00
|
|
|
|
/* Special case a simple move with an input reload and a
|
|
|
|
|
destination of a hard reg, if the hard reg is ok, use it. */
|
|
|
|
|
for (i = 0; i < n_reloads; i++)
|
|
|
|
|
if (rld[i].when_needed == RELOAD_FOR_INPUT
|
|
|
|
|
&& GET_CODE (PATTERN (insn)) == SET
|
|
|
|
|
&& GET_CODE (SET_DEST (PATTERN (insn))) == REG
|
|
|
|
|
&& SET_SRC (PATTERN (insn)) == rld[i].in)
|
|
|
|
|
{
|
|
|
|
|
rtx dest = SET_DEST (PATTERN (insn));
|
|
|
|
|
unsigned int regno = REGNO (dest);
|
|
|
|
|
|
|
|
|
|
if (regno < FIRST_PSEUDO_REGISTER
|
|
|
|
|
&& TEST_HARD_REG_BIT (reg_class_contents[rld[i].class], regno)
|
|
|
|
|
&& HARD_REGNO_MODE_OK (regno, rld[i].mode))
|
|
|
|
|
rld[i].reg_rtx = dest;
|
|
|
|
|
}
|
|
|
|
|
|
Fix consistency problems with reg_equiv_{mem,address};
Improve reload inheritance;
* reload.c (reload_out_reg): New variable.
(loc_mentioned_in_p, remove_address_replacements): New functions.
(remove_replacements): Deleted.
(push_reload): Set reload_out_reg[i].
When merging, also set reload_{in,out}_reg[i], and remove
duplicate address reloads.
(combine_reloads): Copy reload_out_reg[i].
(find_reloads): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
Include *recog_operand_loc in commutativity operand changes.
Generate optional output reloads.
Delete reference to n_memlocs. Don't set *recog_operand_loc before
processing operands. Call make_memloc in reg_equiv_address code.
Set *recog_operand_loc only after processing operands, and only
if replace is true. Return a value.
When changing address reload types for operands that didn't get
reloaded, use RELOAD_FOR_OPADDR_ADDRESS for
RELOAD_FOR_INPADDR_ADDRESS / RELOAD_FOR_OUTADDR_ADDRESS reloads.
Don't emit USEs for pseudo SUBREGs when not replacing.
(find_reloads_address): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
(find_reloads_toplev): Likewise.
Call make_memloc in reg_equiv_address code.
(debug_reload_to_stream): Add code to output reload_out_reg.
(make_memloc): Delete local variable i, ifdefed out code, and
references to memlocs and n_memlocs.
(memlocs, n_memlocs): Delete.
(push_secondary_reload): Clear reload_out_reg.
(find_reloads_address_1): Provide memrefloc argument to all calls
to find_reloads_address.
In AUTO_INC code, handle non-directly addressable equivalences properly.
* reload.h (reload_out_reg, num_not_at_initial_offset): Declare.
(find_reloads): Add return type.
(remove_address_replacements, deallocate_reload_reg): Declare.
* reload1.c (num_not_at_initial_offset): No longer static.
(delete_address_reloads, delete_address_reloads_1): Likewise.
(deallocate_reload_reg): New function.
(spill_reg_stored_to): New array.
(eliminate_regs): Don't substitute from reg_equiv_memory_loc.
(eliminate_regs_in_insn): Move assignments of previous_offset and
max_offset fields, and recalculation of num_not_at_initial_offset
into new static function:
(update_eliminable_offsets) .
(reload_as_needed): Call update_eliminable_offsetss after calling
find_reloads.
Call forget_old_reloads_1 with contents of reloaded auto_inc
expressions if the actual addressing can't be changed to match the
auto_inc.
(choose_reload_regs): For inheritance, replace
reload_reg_free_before_p test with reload_reg_ions.
(emit_reload_insns): If reload_in is a MEM, set OLD to
reload_in_reg[j].
Don't reload directly from oldequiv; if it's a pseudo with a
stack slot, use reload_in[j].
Check that reload_in_reg[j] is a MEM before replacing reload_in
from reg_reloaded_contents.
Include non-spill registers in reload inheritance processing.
Also try to use reload_out_reg to set spill_reg_store /
reg_last_reload_reg.
In code to set new_spill_reg_store, use single_set to find out if
there is a single set.
Add code that allows to delete optional output reloads.
Add code to allow deletion of output reloads that use no spill reg.
At the end, set reload_override_in to oldequiv.
Also call delete_output_reload if reload_out_reg is equal to old
in oldequiv code.
Add code to call delete_output_reload for stores with no matching load.
Set / use spill_reg_stored_to.
Handle case where secondary output reload uses a temporary, but
actual store isn't found.
When looking for a store of a value not loaded in order to call
delete_output_reload, count_occurences should return 0 for no
loads; but discount inherited input reloadill_reg_stored_to.
Do checks for extra uses of REG. Changed all
callers.
Use delete_address_reloads.
(reload): Take return value of find_reloads into account.
If a no-op set needs more than one reload, delete it.
(reload_reg_free_before_p): RELOAD_FOR_INPUT
can ignore RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS
for the same operand.
(clear_reload_reg_in_use): Check for other reloads that keep a
register in use.
(reload_reg_free_for_value_p): handle RELOAD_FOR_OPERAND_ADDRESS /
RELOAD_FOR_OPADDR_ADDR.
Take into account when an address address reload is only needed
for the address reload we are considering.
(count_occurrences): Use rtx_equal_p for MEMs.
(inc_for_reload): Return instruction that stores into RELOADREG.
New argument two, IN, and rtx. Changed all callers.
(calculate_needs_all_insns, reload_as_needed):
Don't clear after_call for a CLOBBER.
Keep track of how many hard registers need to be copied from
after_call, and don't clear after_call before we have seen
that much copies, or we see a different instruction.
From-SVN: r23143
1998-10-16 21:54:38 +02:00
|
|
|
|
return retval;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Return 1 if alternative number ALTNUM in constraint-string CONSTRAINT
|
|
|
|
|
accepts a memory operand with constant address. */
|
|
|
|
|
|
|
|
|
|
static int
|
|
|
|
|
alternative_allows_memconst (constraint, altnum)
|
final.c (bb_str): Qualify a char* with the keyword `const'.
* final.c (bb_str): Qualify a char* with the keyword `const'.
(add_bb_string, final_scan_insn, output_asm_insn): Likewise.
* fix-header.c (read_scan_file): Likewise.
* genoutput.c (output_epilogue, process_template): Likewise.
* local-alloc.c (requires_inout, block_alloc): Likewise.
* output.h (output_asm_insn, assemble_string): Likewise.
* recog.c (recog_constraints, check_asm_operands,
decode_asm_operands, extract_insn, preprocess_constraints,
constrain_operands): Likewise.
* recog.h (operand_alternative, recog_constraints, insn_template,
insn_outfun, insn_operand_constraint, insn_name): Likewise.
* regclass.c (record_reg_classes, scan_one_insn): Likewise.
* regmove.c (find_matches): Likewise.
* reload.c (alternative_allows_memconst): Likewise.
* reload1.c (constraint_accepts_reg_p,
reload_cse_simplify_operands): Likewise.
* rtl.h (decode_asm_operands): Likewise.
* scan.h (fn_decl): Likewise.
* varasm.c (assemble_string): Likewise.
From-SVN: r24834
1999-01-23 20:45:50 +01:00
|
|
|
|
const char *constraint;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
int altnum;
|
|
|
|
|
{
|
2001-10-11 05:16:15 +02:00
|
|
|
|
int c;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
/* Skip alternatives before the one requested. */
|
|
|
|
|
while (altnum > 0)
|
|
|
|
|
{
|
|
|
|
|
while (*constraint++ != ',');
|
|
|
|
|
altnum--;
|
|
|
|
|
}
|
|
|
|
|
/* Scan the requested alternative for 'm' or 'o'.
|
|
|
|
|
If one of them is present, this alternative accepts memory constants. */
|
|
|
|
|
while ((c = *constraint++) && c != ',' && c != '#')
|
|
|
|
|
if (c == 'm' || c == 'o')
|
|
|
|
|
return 1;
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Scan X for memory references and scan the addresses for reloading.
|
|
|
|
|
Also checks for references to "constant" regs that we want to eliminate
|
|
|
|
|
and replaces them with the values they stand for.
|
1992-05-07 08:41:23 +02:00
|
|
|
|
We may alter X destructively if it contains a reference to such.
|
1992-02-28 11:23:25 +01:00
|
|
|
|
If X is just a constant reg, we return the equivalent value
|
|
|
|
|
instead of X.
|
|
|
|
|
|
|
|
|
|
IND_LEVELS says how many levels of indirect addressing this machine
|
|
|
|
|
supports.
|
|
|
|
|
|
1993-03-29 13:27:52 +02:00
|
|
|
|
OPNUM and TYPE identify the purpose of the reload.
|
|
|
|
|
|
1992-02-28 11:23:25 +01:00
|
|
|
|
IS_SET_DEST is true if X is the destination of a SET, which is not
|
Fix consistency problems with reg_equiv_{mem,address};
Improve reload inheritance;
* reload.c (reload_out_reg): New variable.
(loc_mentioned_in_p, remove_address_replacements): New functions.
(remove_replacements): Deleted.
(push_reload): Set reload_out_reg[i].
When merging, also set reload_{in,out}_reg[i], and remove
duplicate address reloads.
(combine_reloads): Copy reload_out_reg[i].
(find_reloads): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
Include *recog_operand_loc in commutativity operand changes.
Generate optional output reloads.
Delete reference to n_memlocs. Don't set *recog_operand_loc before
processing operands. Call make_memloc in reg_equiv_address code.
Set *recog_operand_loc only after processing operands, and only
if replace is true. Return a value.
When changing address reload types for operands that didn't get
reloaded, use RELOAD_FOR_OPADDR_ADDRESS for
RELOAD_FOR_INPADDR_ADDRESS / RELOAD_FOR_OUTADDR_ADDRESS reloads.
Don't emit USEs for pseudo SUBREGs when not replacing.
(find_reloads_address): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
(find_reloads_toplev): Likewise.
Call make_memloc in reg_equiv_address code.
(debug_reload_to_stream): Add code to output reload_out_reg.
(make_memloc): Delete local variable i, ifdefed out code, and
references to memlocs and n_memlocs.
(memlocs, n_memlocs): Delete.
(push_secondary_reload): Clear reload_out_reg.
(find_reloads_address_1): Provide memrefloc argument to all calls
to find_reloads_address.
In AUTO_INC code, handle non-directly addressable equivalences properly.
* reload.h (reload_out_reg, num_not_at_initial_offset): Declare.
(find_reloads): Add return type.
(remove_address_replacements, deallocate_reload_reg): Declare.
* reload1.c (num_not_at_initial_offset): No longer static.
(delete_address_reloads, delete_address_reloads_1): Likewise.
(deallocate_reload_reg): New function.
(spill_reg_stored_to): New array.
(eliminate_regs): Don't substitute from reg_equiv_memory_loc.
(eliminate_regs_in_insn): Move assignments of previous_offset and
max_offset fields, and recalculation of num_not_at_initial_offset
into new static function:
(update_eliminable_offsets) .
(reload_as_needed): Call update_eliminable_offsetss after calling
find_reloads.
Call forget_old_reloads_1 with contents of reloaded auto_inc
expressions if the actual addressing can't be changed to match the
auto_inc.
(choose_reload_regs): For inheritance, replace
reload_reg_free_before_p test with reload_reg_ions.
(emit_reload_insns): If reload_in is a MEM, set OLD to
reload_in_reg[j].
Don't reload directly from oldequiv; if it's a pseudo with a
stack slot, use reload_in[j].
Check that reload_in_reg[j] is a MEM before replacing reload_in
from reg_reloaded_contents.
Include non-spill registers in reload inheritance processing.
Also try to use reload_out_reg to set spill_reg_store /
reg_last_reload_reg.
In code to set new_spill_reg_store, use single_set to find out if
there is a single set.
Add code that allows to delete optional output reloads.
Add code to allow deletion of output reloads that use no spill reg.
At the end, set reload_override_in to oldequiv.
Also call delete_output_reload if reload_out_reg is equal to old
in oldequiv code.
Add code to call delete_output_reload for stores with no matching load.
Set / use spill_reg_stored_to.
Handle case where secondary output reload uses a temporary, but
actual store isn't found.
When looking for a store of a value not loaded in order to call
delete_output_reload, count_occurences should return 0 for no
loads; but discount inherited input reloadill_reg_stored_to.
Do checks for extra uses of REG. Changed all
callers.
Use delete_address_reloads.
(reload): Take return value of find_reloads into account.
If a no-op set needs more than one reload, delete it.
(reload_reg_free_before_p): RELOAD_FOR_INPUT
can ignore RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS
for the same operand.
(clear_reload_reg_in_use): Check for other reloads that keep a
register in use.
(reload_reg_free_for_value_p): handle RELOAD_FOR_OPERAND_ADDRESS /
RELOAD_FOR_OPADDR_ADDR.
Take into account when an address address reload is only needed
for the address reload we are considering.
(count_occurrences): Use rtx_equal_p for MEMs.
(inc_for_reload): Return instruction that stores into RELOADREG.
New argument two, IN, and rtx. Changed all callers.
(calculate_needs_all_insns, reload_as_needed):
Don't clear after_call for a CLOBBER.
Keep track of how many hard registers need to be copied from
after_call, and don't clear after_call before we have seen
that much copies, or we see a different instruction.
From-SVN: r23143
1998-10-16 21:54:38 +02:00
|
|
|
|
appropriate to be replaced by a constant.
|
|
|
|
|
|
|
|
|
|
INSN, if nonzero, is the insn in which we do the reload. It is used
|
|
|
|
|
to determine if we may generate output reloads, and where to put USEs
|
2000-07-23 08:17:41 +02:00
|
|
|
|
for pseudos that we have to replace with stack slots.
|
|
|
|
|
|
|
|
|
|
ADDRESS_RELOADED. If nonzero, is a pointer to where we put the
|
|
|
|
|
result of find_reloads_address. */
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
|
|
|
|
static rtx
|
2000-07-23 08:17:41 +02:00
|
|
|
|
find_reloads_toplev (x, opnum, type, ind_levels, is_set_dest, insn,
|
|
|
|
|
address_reloaded)
|
1992-02-28 11:23:25 +01:00
|
|
|
|
rtx x;
|
1993-03-29 13:27:52 +02:00
|
|
|
|
int opnum;
|
|
|
|
|
enum reload_type type;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
int ind_levels;
|
|
|
|
|
int is_set_dest;
|
Fix consistency problems with reg_equiv_{mem,address};
Improve reload inheritance;
* reload.c (reload_out_reg): New variable.
(loc_mentioned_in_p, remove_address_replacements): New functions.
(remove_replacements): Deleted.
(push_reload): Set reload_out_reg[i].
When merging, also set reload_{in,out}_reg[i], and remove
duplicate address reloads.
(combine_reloads): Copy reload_out_reg[i].
(find_reloads): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
Include *recog_operand_loc in commutativity operand changes.
Generate optional output reloads.
Delete reference to n_memlocs. Don't set *recog_operand_loc before
processing operands. Call make_memloc in reg_equiv_address code.
Set *recog_operand_loc only after processing operands, and only
if replace is true. Return a value.
When changing address reload types for operands that didn't get
reloaded, use RELOAD_FOR_OPADDR_ADDRESS for
RELOAD_FOR_INPADDR_ADDRESS / RELOAD_FOR_OUTADDR_ADDRESS reloads.
Don't emit USEs for pseudo SUBREGs when not replacing.
(find_reloads_address): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
(find_reloads_toplev): Likewise.
Call make_memloc in reg_equiv_address code.
(debug_reload_to_stream): Add code to output reload_out_reg.
(make_memloc): Delete local variable i, ifdefed out code, and
references to memlocs and n_memlocs.
(memlocs, n_memlocs): Delete.
(push_secondary_reload): Clear reload_out_reg.
(find_reloads_address_1): Provide memrefloc argument to all calls
to find_reloads_address.
In AUTO_INC code, handle non-directly addressable equivalences properly.
* reload.h (reload_out_reg, num_not_at_initial_offset): Declare.
(find_reloads): Add return type.
(remove_address_replacements, deallocate_reload_reg): Declare.
* reload1.c (num_not_at_initial_offset): No longer static.
(delete_address_reloads, delete_address_reloads_1): Likewise.
(deallocate_reload_reg): New function.
(spill_reg_stored_to): New array.
(eliminate_regs): Don't substitute from reg_equiv_memory_loc.
(eliminate_regs_in_insn): Move assignments of previous_offset and
max_offset fields, and recalculation of num_not_at_initial_offset
into new static function:
(update_eliminable_offsets) .
(reload_as_needed): Call update_eliminable_offsetss after calling
find_reloads.
Call forget_old_reloads_1 with contents of reloaded auto_inc
expressions if the actual addressing can't be changed to match the
auto_inc.
(choose_reload_regs): For inheritance, replace
reload_reg_free_before_p test with reload_reg_ions.
(emit_reload_insns): If reload_in is a MEM, set OLD to
reload_in_reg[j].
Don't reload directly from oldequiv; if it's a pseudo with a
stack slot, use reload_in[j].
Check that reload_in_reg[j] is a MEM before replacing reload_in
from reg_reloaded_contents.
Include non-spill registers in reload inheritance processing.
Also try to use reload_out_reg to set spill_reg_store /
reg_last_reload_reg.
In code to set new_spill_reg_store, use single_set to find out if
there is a single set.
Add code that allows to delete optional output reloads.
Add code to allow deletion of output reloads that use no spill reg.
At the end, set reload_override_in to oldequiv.
Also call delete_output_reload if reload_out_reg is equal to old
in oldequiv code.
Add code to call delete_output_reload for stores with no matching load.
Set / use spill_reg_stored_to.
Handle case where secondary output reload uses a temporary, but
actual store isn't found.
When looking for a store of a value not loaded in order to call
delete_output_reload, count_occurences should return 0 for no
loads; but discount inherited input reloadill_reg_stored_to.
Do checks for extra uses of REG. Changed all
callers.
Use delete_address_reloads.
(reload): Take return value of find_reloads into account.
If a no-op set needs more than one reload, delete it.
(reload_reg_free_before_p): RELOAD_FOR_INPUT
can ignore RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS
for the same operand.
(clear_reload_reg_in_use): Check for other reloads that keep a
register in use.
(reload_reg_free_for_value_p): handle RELOAD_FOR_OPERAND_ADDRESS /
RELOAD_FOR_OPADDR_ADDR.
Take into account when an address address reload is only needed
for the address reload we are considering.
(count_occurrences): Use rtx_equal_p for MEMs.
(inc_for_reload): Return instruction that stores into RELOADREG.
New argument two, IN, and rtx. Changed all callers.
(calculate_needs_all_insns, reload_as_needed):
Don't clear after_call for a CLOBBER.
Keep track of how many hard registers need to be copied from
after_call, and don't clear after_call before we have seen
that much copies, or we see a different instruction.
From-SVN: r23143
1998-10-16 21:54:38 +02:00
|
|
|
|
rtx insn;
|
2000-07-23 08:17:41 +02:00
|
|
|
|
int *address_reloaded;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
{
|
2001-10-11 05:16:15 +02:00
|
|
|
|
RTX_CODE code = GET_CODE (x);
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
2001-10-11 05:16:15 +02:00
|
|
|
|
const char *fmt = GET_RTX_FORMAT (code);
|
|
|
|
|
int i;
|
1999-03-18 12:12:01 +01:00
|
|
|
|
int copied;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
|
|
|
|
if (code == REG)
|
|
|
|
|
{
|
|
|
|
|
/* This code is duplicated for speed in find_reloads. */
|
2001-10-11 05:16:15 +02:00
|
|
|
|
int regno = REGNO (x);
|
1992-02-28 11:23:25 +01:00
|
|
|
|
if (reg_equiv_constant[regno] != 0 && !is_set_dest)
|
|
|
|
|
x = reg_equiv_constant[regno];
|
|
|
|
|
#if 0
|
1999-09-01 16:30:35 +02:00
|
|
|
|
/* This creates (subreg (mem...)) which would cause an unnecessary
|
|
|
|
|
reload of the mem. */
|
1992-02-28 11:23:25 +01:00
|
|
|
|
else if (reg_equiv_mem[regno] != 0)
|
|
|
|
|
x = reg_equiv_mem[regno];
|
|
|
|
|
#endif
|
Fix consistency problems with reg_equiv_{mem,address};
Improve reload inheritance;
* reload.c (reload_out_reg): New variable.
(loc_mentioned_in_p, remove_address_replacements): New functions.
(remove_replacements): Deleted.
(push_reload): Set reload_out_reg[i].
When merging, also set reload_{in,out}_reg[i], and remove
duplicate address reloads.
(combine_reloads): Copy reload_out_reg[i].
(find_reloads): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
Include *recog_operand_loc in commutativity operand changes.
Generate optional output reloads.
Delete reference to n_memlocs. Don't set *recog_operand_loc before
processing operands. Call make_memloc in reg_equiv_address code.
Set *recog_operand_loc only after processing operands, and only
if replace is true. Return a value.
When changing address reload types for operands that didn't get
reloaded, use RELOAD_FOR_OPADDR_ADDRESS for
RELOAD_FOR_INPADDR_ADDRESS / RELOAD_FOR_OUTADDR_ADDRESS reloads.
Don't emit USEs for pseudo SUBREGs when not replacing.
(find_reloads_address): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
(find_reloads_toplev): Likewise.
Call make_memloc in reg_equiv_address code.
(debug_reload_to_stream): Add code to output reload_out_reg.
(make_memloc): Delete local variable i, ifdefed out code, and
references to memlocs and n_memlocs.
(memlocs, n_memlocs): Delete.
(push_secondary_reload): Clear reload_out_reg.
(find_reloads_address_1): Provide memrefloc argument to all calls
to find_reloads_address.
In AUTO_INC code, handle non-directly addressable equivalences properly.
* reload.h (reload_out_reg, num_not_at_initial_offset): Declare.
(find_reloads): Add return type.
(remove_address_replacements, deallocate_reload_reg): Declare.
* reload1.c (num_not_at_initial_offset): No longer static.
(delete_address_reloads, delete_address_reloads_1): Likewise.
(deallocate_reload_reg): New function.
(spill_reg_stored_to): New array.
(eliminate_regs): Don't substitute from reg_equiv_memory_loc.
(eliminate_regs_in_insn): Move assignments of previous_offset and
max_offset fields, and recalculation of num_not_at_initial_offset
into new static function:
(update_eliminable_offsets) .
(reload_as_needed): Call update_eliminable_offsetss after calling
find_reloads.
Call forget_old_reloads_1 with contents of reloaded auto_inc
expressions if the actual addressing can't be changed to match the
auto_inc.
(choose_reload_regs): For inheritance, replace
reload_reg_free_before_p test with reload_reg_ions.
(emit_reload_insns): If reload_in is a MEM, set OLD to
reload_in_reg[j].
Don't reload directly from oldequiv; if it's a pseudo with a
stack slot, use reload_in[j].
Check that reload_in_reg[j] is a MEM before replacing reload_in
from reg_reloaded_contents.
Include non-spill registers in reload inheritance processing.
Also try to use reload_out_reg to set spill_reg_store /
reg_last_reload_reg.
In code to set new_spill_reg_store, use single_set to find out if
there is a single set.
Add code that allows to delete optional output reloads.
Add code to allow deletion of output reloads that use no spill reg.
At the end, set reload_override_in to oldequiv.
Also call delete_output_reload if reload_out_reg is equal to old
in oldequiv code.
Add code to call delete_output_reload for stores with no matching load.
Set / use spill_reg_stored_to.
Handle case where secondary output reload uses a temporary, but
actual store isn't found.
When looking for a store of a value not loaded in order to call
delete_output_reload, count_occurences should return 0 for no
loads; but discount inherited input reloadill_reg_stored_to.
Do checks for extra uses of REG. Changed all
callers.
Use delete_address_reloads.
(reload): Take return value of find_reloads into account.
If a no-op set needs more than one reload, delete it.
(reload_reg_free_before_p): RELOAD_FOR_INPUT
can ignore RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS
for the same operand.
(clear_reload_reg_in_use): Check for other reloads that keep a
register in use.
(reload_reg_free_for_value_p): handle RELOAD_FOR_OPERAND_ADDRESS /
RELOAD_FOR_OPADDR_ADDR.
Take into account when an address address reload is only needed
for the address reload we are considering.
(count_occurrences): Use rtx_equal_p for MEMs.
(inc_for_reload): Return instruction that stores into RELOADREG.
New argument two, IN, and rtx. Changed all callers.
(calculate_needs_all_insns, reload_as_needed):
Don't clear after_call for a CLOBBER.
Keep track of how many hard registers need to be copied from
after_call, and don't clear after_call before we have seen
that much copies, or we see a different instruction.
From-SVN: r23143
1998-10-16 21:54:38 +02:00
|
|
|
|
else if (reg_equiv_memory_loc[regno]
|
|
|
|
|
&& (reg_equiv_address[regno] != 0 || num_not_at_initial_offset))
|
1992-02-28 11:23:25 +01:00
|
|
|
|
{
|
Fix consistency problems with reg_equiv_{mem,address};
Improve reload inheritance;
* reload.c (reload_out_reg): New variable.
(loc_mentioned_in_p, remove_address_replacements): New functions.
(remove_replacements): Deleted.
(push_reload): Set reload_out_reg[i].
When merging, also set reload_{in,out}_reg[i], and remove
duplicate address reloads.
(combine_reloads): Copy reload_out_reg[i].
(find_reloads): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
Include *recog_operand_loc in commutativity operand changes.
Generate optional output reloads.
Delete reference to n_memlocs. Don't set *recog_operand_loc before
processing operands. Call make_memloc in reg_equiv_address code.
Set *recog_operand_loc only after processing operands, and only
if replace is true. Return a value.
When changing address reload types for operands that didn't get
reloaded, use RELOAD_FOR_OPADDR_ADDRESS for
RELOAD_FOR_INPADDR_ADDRESS / RELOAD_FOR_OUTADDR_ADDRESS reloads.
Don't emit USEs for pseudo SUBREGs when not replacing.
(find_reloads_address): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
(find_reloads_toplev): Likewise.
Call make_memloc in reg_equiv_address code.
(debug_reload_to_stream): Add code to output reload_out_reg.
(make_memloc): Delete local variable i, ifdefed out code, and
references to memlocs and n_memlocs.
(memlocs, n_memlocs): Delete.
(push_secondary_reload): Clear reload_out_reg.
(find_reloads_address_1): Provide memrefloc argument to all calls
to find_reloads_address.
In AUTO_INC code, handle non-directly addressable equivalences properly.
* reload.h (reload_out_reg, num_not_at_initial_offset): Declare.
(find_reloads): Add return type.
(remove_address_replacements, deallocate_reload_reg): Declare.
* reload1.c (num_not_at_initial_offset): No longer static.
(delete_address_reloads, delete_address_reloads_1): Likewise.
(deallocate_reload_reg): New function.
(spill_reg_stored_to): New array.
(eliminate_regs): Don't substitute from reg_equiv_memory_loc.
(eliminate_regs_in_insn): Move assignments of previous_offset and
max_offset fields, and recalculation of num_not_at_initial_offset
into new static function:
(update_eliminable_offsets) .
(reload_as_needed): Call update_eliminable_offsetss after calling
find_reloads.
Call forget_old_reloads_1 with contents of reloaded auto_inc
expressions if the actual addressing can't be changed to match the
auto_inc.
(choose_reload_regs): For inheritance, replace
reload_reg_free_before_p test with reload_reg_ions.
(emit_reload_insns): If reload_in is a MEM, set OLD to
reload_in_reg[j].
Don't reload directly from oldequiv; if it's a pseudo with a
stack slot, use reload_in[j].
Check that reload_in_reg[j] is a MEM before replacing reload_in
from reg_reloaded_contents.
Include non-spill registers in reload inheritance processing.
Also try to use reload_out_reg to set spill_reg_store /
reg_last_reload_reg.
In code to set new_spill_reg_store, use single_set to find out if
there is a single set.
Add code that allows to delete optional output reloads.
Add code to allow deletion of output reloads that use no spill reg.
At the end, set reload_override_in to oldequiv.
Also call delete_output_reload if reload_out_reg is equal to old
in oldequiv code.
Add code to call delete_output_reload for stores with no matching load.
Set / use spill_reg_stored_to.
Handle case where secondary output reload uses a temporary, but
actual store isn't found.
When looking for a store of a value not loaded in order to call
delete_output_reload, count_occurences should return 0 for no
loads; but discount inherited input reloadill_reg_stored_to.
Do checks for extra uses of REG. Changed all
callers.
Use delete_address_reloads.
(reload): Take return value of find_reloads into account.
If a no-op set needs more than one reload, delete it.
(reload_reg_free_before_p): RELOAD_FOR_INPUT
can ignore RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS
for the same operand.
(clear_reload_reg_in_use): Check for other reloads that keep a
register in use.
(reload_reg_free_for_value_p): handle RELOAD_FOR_OPERAND_ADDRESS /
RELOAD_FOR_OPADDR_ADDR.
Take into account when an address address reload is only needed
for the address reload we are considering.
(count_occurrences): Use rtx_equal_p for MEMs.
(inc_for_reload): Return instruction that stores into RELOADREG.
New argument two, IN, and rtx. Changed all callers.
(calculate_needs_all_insns, reload_as_needed):
Don't clear after_call for a CLOBBER.
Keep track of how many hard registers need to be copied from
after_call, and don't clear after_call before we have seen
that much copies, or we see a different instruction.
From-SVN: r23143
1998-10-16 21:54:38 +02:00
|
|
|
|
rtx mem = make_memloc (x, regno);
|
|
|
|
|
if (reg_equiv_address[regno]
|
|
|
|
|
|| ! rtx_equal_p (mem, reg_equiv_mem[regno]))
|
|
|
|
|
{
|
|
|
|
|
/* If this is not a toplevel operand, find_reloads doesn't see
|
|
|
|
|
this substitution. We have to emit a USE of the pseudo so
|
|
|
|
|
that delete_output_reload can see it. */
|
1999-09-12 03:51:28 +02:00
|
|
|
|
if (replace_reloads && recog_data.operand[opnum] != x)
|
2001-09-29 23:52:12 +02:00
|
|
|
|
/* We mark the USE with QImode so that we recognize it
|
|
|
|
|
as one that can be safely deleted at the end of
|
|
|
|
|
reload. */
|
|
|
|
|
PUT_MODE (emit_insn_before (gen_rtx_USE (VOIDmode, x), insn),
|
|
|
|
|
QImode);
|
Fix consistency problems with reg_equiv_{mem,address};
Improve reload inheritance;
* reload.c (reload_out_reg): New variable.
(loc_mentioned_in_p, remove_address_replacements): New functions.
(remove_replacements): Deleted.
(push_reload): Set reload_out_reg[i].
When merging, also set reload_{in,out}_reg[i], and remove
duplicate address reloads.
(combine_reloads): Copy reload_out_reg[i].
(find_reloads): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
Include *recog_operand_loc in commutativity operand changes.
Generate optional output reloads.
Delete reference to n_memlocs. Don't set *recog_operand_loc before
processing operands. Call make_memloc in reg_equiv_address code.
Set *recog_operand_loc only after processing operands, and only
if replace is true. Return a value.
When changing address reload types for operands that didn't get
reloaded, use RELOAD_FOR_OPADDR_ADDRESS for
RELOAD_FOR_INPADDR_ADDRESS / RELOAD_FOR_OUTADDR_ADDRESS reloads.
Don't emit USEs for pseudo SUBREGs when not replacing.
(find_reloads_address): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
(find_reloads_toplev): Likewise.
Call make_memloc in reg_equiv_address code.
(debug_reload_to_stream): Add code to output reload_out_reg.
(make_memloc): Delete local variable i, ifdefed out code, and
references to memlocs and n_memlocs.
(memlocs, n_memlocs): Delete.
(push_secondary_reload): Clear reload_out_reg.
(find_reloads_address_1): Provide memrefloc argument to all calls
to find_reloads_address.
In AUTO_INC code, handle non-directly addressable equivalences properly.
* reload.h (reload_out_reg, num_not_at_initial_offset): Declare.
(find_reloads): Add return type.
(remove_address_replacements, deallocate_reload_reg): Declare.
* reload1.c (num_not_at_initial_offset): No longer static.
(delete_address_reloads, delete_address_reloads_1): Likewise.
(deallocate_reload_reg): New function.
(spill_reg_stored_to): New array.
(eliminate_regs): Don't substitute from reg_equiv_memory_loc.
(eliminate_regs_in_insn): Move assignments of previous_offset and
max_offset fields, and recalculation of num_not_at_initial_offset
into new static function:
(update_eliminable_offsets) .
(reload_as_needed): Call update_eliminable_offsetss after calling
find_reloads.
Call forget_old_reloads_1 with contents of reloaded auto_inc
expressions if the actual addressing can't be changed to match the
auto_inc.
(choose_reload_regs): For inheritance, replace
reload_reg_free_before_p test with reload_reg_ions.
(emit_reload_insns): If reload_in is a MEM, set OLD to
reload_in_reg[j].
Don't reload directly from oldequiv; if it's a pseudo with a
stack slot, use reload_in[j].
Check that reload_in_reg[j] is a MEM before replacing reload_in
from reg_reloaded_contents.
Include non-spill registers in reload inheritance processing.
Also try to use reload_out_reg to set spill_reg_store /
reg_last_reload_reg.
In code to set new_spill_reg_store, use single_set to find out if
there is a single set.
Add code that allows to delete optional output reloads.
Add code to allow deletion of output reloads that use no spill reg.
At the end, set reload_override_in to oldequiv.
Also call delete_output_reload if reload_out_reg is equal to old
in oldequiv code.
Add code to call delete_output_reload for stores with no matching load.
Set / use spill_reg_stored_to.
Handle case where secondary output reload uses a temporary, but
actual store isn't found.
When looking for a store of a value not loaded in order to call
delete_output_reload, count_occurences should return 0 for no
loads; but discount inherited input reloadill_reg_stored_to.
Do checks for extra uses of REG. Changed all
callers.
Use delete_address_reloads.
(reload): Take return value of find_reloads into account.
If a no-op set needs more than one reload, delete it.
(reload_reg_free_before_p): RELOAD_FOR_INPUT
can ignore RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS
for the same operand.
(clear_reload_reg_in_use): Check for other reloads that keep a
register in use.
(reload_reg_free_for_value_p): handle RELOAD_FOR_OPERAND_ADDRESS /
RELOAD_FOR_OPADDR_ADDR.
Take into account when an address address reload is only needed
for the address reload we are considering.
(count_occurrences): Use rtx_equal_p for MEMs.
(inc_for_reload): Return instruction that stores into RELOADREG.
New argument two, IN, and rtx. Changed all callers.
(calculate_needs_all_insns, reload_as_needed):
Don't clear after_call for a CLOBBER.
Keep track of how many hard registers need to be copied from
after_call, and don't clear after_call before we have seen
that much copies, or we see a different instruction.
From-SVN: r23143
1998-10-16 21:54:38 +02:00
|
|
|
|
x = mem;
|
2000-07-23 08:17:41 +02:00
|
|
|
|
i = find_reloads_address (GET_MODE (x), &x, XEXP (x, 0), &XEXP (x, 0),
|
|
|
|
|
opnum, type, ind_levels, insn);
|
|
|
|
|
if (address_reloaded)
|
|
|
|
|
*address_reloaded = i;
|
Fix consistency problems with reg_equiv_{mem,address};
Improve reload inheritance;
* reload.c (reload_out_reg): New variable.
(loc_mentioned_in_p, remove_address_replacements): New functions.
(remove_replacements): Deleted.
(push_reload): Set reload_out_reg[i].
When merging, also set reload_{in,out}_reg[i], and remove
duplicate address reloads.
(combine_reloads): Copy reload_out_reg[i].
(find_reloads): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
Include *recog_operand_loc in commutativity operand changes.
Generate optional output reloads.
Delete reference to n_memlocs. Don't set *recog_operand_loc before
processing operands. Call make_memloc in reg_equiv_address code.
Set *recog_operand_loc only after processing operands, and only
if replace is true. Return a value.
When changing address reload types for operands that didn't get
reloaded, use RELOAD_FOR_OPADDR_ADDRESS for
RELOAD_FOR_INPADDR_ADDRESS / RELOAD_FOR_OUTADDR_ADDRESS reloads.
Don't emit USEs for pseudo SUBREGs when not replacing.
(find_reloads_address): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
(find_reloads_toplev): Likewise.
Call make_memloc in reg_equiv_address code.
(debug_reload_to_stream): Add code to output reload_out_reg.
(make_memloc): Delete local variable i, ifdefed out code, and
references to memlocs and n_memlocs.
(memlocs, n_memlocs): Delete.
(push_secondary_reload): Clear reload_out_reg.
(find_reloads_address_1): Provide memrefloc argument to all calls
to find_reloads_address.
In AUTO_INC code, handle non-directly addressable equivalences properly.
* reload.h (reload_out_reg, num_not_at_initial_offset): Declare.
(find_reloads): Add return type.
(remove_address_replacements, deallocate_reload_reg): Declare.
* reload1.c (num_not_at_initial_offset): No longer static.
(delete_address_reloads, delete_address_reloads_1): Likewise.
(deallocate_reload_reg): New function.
(spill_reg_stored_to): New array.
(eliminate_regs): Don't substitute from reg_equiv_memory_loc.
(eliminate_regs_in_insn): Move assignments of previous_offset and
max_offset fields, and recalculation of num_not_at_initial_offset
into new static function:
(update_eliminable_offsets) .
(reload_as_needed): Call update_eliminable_offsetss after calling
find_reloads.
Call forget_old_reloads_1 with contents of reloaded auto_inc
expressions if the actual addressing can't be changed to match the
auto_inc.
(choose_reload_regs): For inheritance, replace
reload_reg_free_before_p test with reload_reg_ions.
(emit_reload_insns): If reload_in is a MEM, set OLD to
reload_in_reg[j].
Don't reload directly from oldequiv; if it's a pseudo with a
stack slot, use reload_in[j].
Check that reload_in_reg[j] is a MEM before replacing reload_in
from reg_reloaded_contents.
Include non-spill registers in reload inheritance processing.
Also try to use reload_out_reg to set spill_reg_store /
reg_last_reload_reg.
In code to set new_spill_reg_store, use single_set to find out if
there is a single set.
Add code that allows to delete optional output reloads.
Add code to allow deletion of output reloads that use no spill reg.
At the end, set reload_override_in to oldequiv.
Also call delete_output_reload if reload_out_reg is equal to old
in oldequiv code.
Add code to call delete_output_reload for stores with no matching load.
Set / use spill_reg_stored_to.
Handle case where secondary output reload uses a temporary, but
actual store isn't found.
When looking for a store of a value not loaded in order to call
delete_output_reload, count_occurences should return 0 for no
loads; but discount inherited input reloadill_reg_stored_to.
Do checks for extra uses of REG. Changed all
callers.
Use delete_address_reloads.
(reload): Take return value of find_reloads into account.
If a no-op set needs more than one reload, delete it.
(reload_reg_free_before_p): RELOAD_FOR_INPUT
can ignore RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS
for the same operand.
(clear_reload_reg_in_use): Check for other reloads that keep a
register in use.
(reload_reg_free_for_value_p): handle RELOAD_FOR_OPERAND_ADDRESS /
RELOAD_FOR_OPADDR_ADDR.
Take into account when an address address reload is only needed
for the address reload we are considering.
(count_occurrences): Use rtx_equal_p for MEMs.
(inc_for_reload): Return instruction that stores into RELOADREG.
New argument two, IN, and rtx. Changed all callers.
(calculate_needs_all_insns, reload_as_needed):
Don't clear after_call for a CLOBBER.
Keep track of how many hard registers need to be copied from
after_call, and don't clear after_call before we have seen
that much copies, or we see a different instruction.
From-SVN: r23143
1998-10-16 21:54:38 +02:00
|
|
|
|
}
|
1992-02-28 11:23:25 +01:00
|
|
|
|
}
|
|
|
|
|
return x;
|
|
|
|
|
}
|
|
|
|
|
if (code == MEM)
|
|
|
|
|
{
|
|
|
|
|
rtx tem = x;
|
2000-07-23 08:17:41 +02:00
|
|
|
|
|
|
|
|
|
i = find_reloads_address (GET_MODE (x), &tem, XEXP (x, 0), &XEXP (x, 0),
|
|
|
|
|
opnum, type, ind_levels, insn);
|
|
|
|
|
if (address_reloaded)
|
|
|
|
|
*address_reloaded = i;
|
|
|
|
|
|
1992-02-28 11:23:25 +01:00
|
|
|
|
return tem;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (code == SUBREG && GET_CODE (SUBREG_REG (x)) == REG)
|
|
|
|
|
{
|
1999-09-01 16:30:35 +02:00
|
|
|
|
/* Check for SUBREG containing a REG that's equivalent to a constant.
|
1992-02-28 11:23:25 +01:00
|
|
|
|
If the constant has a known value, truncate it right now.
|
|
|
|
|
Similarly if we are extracting a single-word of a multi-word
|
|
|
|
|
constant. If the constant is symbolic, allow it to be substituted
|
|
|
|
|
normally. push_reload will strip the subreg later. If the
|
|
|
|
|
constant is VOIDmode, abort because we will lose the mode of
|
|
|
|
|
the register (this should never happen because one of the cases
|
|
|
|
|
above should handle it). */
|
|
|
|
|
|
2001-10-11 05:16:15 +02:00
|
|
|
|
int regno = REGNO (SUBREG_REG (x));
|
1992-02-28 11:23:25 +01:00
|
|
|
|
rtx tem;
|
|
|
|
|
|
|
|
|
|
if (subreg_lowpart_p (x)
|
|
|
|
|
&& regno >= FIRST_PSEUDO_REGISTER && reg_renumber[regno] < 0
|
|
|
|
|
&& reg_equiv_constant[regno] != 0
|
|
|
|
|
&& (tem = gen_lowpart_common (GET_MODE (x),
|
|
|
|
|
reg_equiv_constant[regno])) != 0)
|
|
|
|
|
return tem;
|
|
|
|
|
|
|
|
|
|
if (GET_MODE_BITSIZE (GET_MODE (x)) == BITS_PER_WORD
|
|
|
|
|
&& regno >= FIRST_PSEUDO_REGISTER && reg_renumber[regno] < 0
|
2002-07-23 22:06:46 +02:00
|
|
|
|
&& reg_equiv_constant[regno] != 0)
|
1998-06-10 03:14:54 +02:00
|
|
|
|
{
|
2002-07-23 22:06:46 +02:00
|
|
|
|
tem =
|
|
|
|
|
simplify_gen_subreg (GET_MODE (x), reg_equiv_constant[regno],
|
|
|
|
|
GET_MODE (SUBREG_REG (x)), SUBREG_BYTE (x));
|
1998-06-10 03:14:54 +02:00
|
|
|
|
if (!tem)
|
|
|
|
|
abort ();
|
|
|
|
|
return tem;
|
|
|
|
|
}
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
|
|
|
|
/* If the subreg contains a reg that will be converted to a mem,
|
|
|
|
|
convert the subreg to a narrower memref now.
|
|
|
|
|
Otherwise, we would get (subreg (mem ...) ...),
|
|
|
|
|
which would force reload of the mem.
|
|
|
|
|
|
|
|
|
|
We also need to do this if there is an equivalent MEM that is
|
|
|
|
|
not offsettable. In that case, alter_subreg would produce an
|
|
|
|
|
invalid address on big-endian machines.
|
|
|
|
|
|
1992-09-20 11:50:34 +02:00
|
|
|
|
For machines that extend byte loads, we must not reload using
|
1992-02-28 11:23:25 +01:00
|
|
|
|
a wider mode if we have a paradoxical SUBREG. find_reloads will
|
|
|
|
|
force a reload in that case. So we should not do anything here. */
|
|
|
|
|
|
|
|
|
|
else if (regno >= FIRST_PSEUDO_REGISTER
|
1993-12-02 12:45:55 +01:00
|
|
|
|
#ifdef LOAD_EXTEND_OP
|
1992-02-28 11:23:25 +01:00
|
|
|
|
&& (GET_MODE_SIZE (GET_MODE (x))
|
|
|
|
|
<= GET_MODE_SIZE (GET_MODE (SUBREG_REG (x))))
|
|
|
|
|
#endif
|
|
|
|
|
&& (reg_equiv_address[regno] != 0
|
|
|
|
|
|| (reg_equiv_mem[regno] != 0
|
1999-09-01 16:30:35 +02:00
|
|
|
|
&& (! strict_memory_address_p (GET_MODE (x),
|
1993-01-29 18:09:30 +01:00
|
|
|
|
XEXP (reg_equiv_mem[regno], 0))
|
Fix consistency problems with reg_equiv_{mem,address};
Improve reload inheritance;
* reload.c (reload_out_reg): New variable.
(loc_mentioned_in_p, remove_address_replacements): New functions.
(remove_replacements): Deleted.
(push_reload): Set reload_out_reg[i].
When merging, also set reload_{in,out}_reg[i], and remove
duplicate address reloads.
(combine_reloads): Copy reload_out_reg[i].
(find_reloads): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
Include *recog_operand_loc in commutativity operand changes.
Generate optional output reloads.
Delete reference to n_memlocs. Don't set *recog_operand_loc before
processing operands. Call make_memloc in reg_equiv_address code.
Set *recog_operand_loc only after processing operands, and only
if replace is true. Return a value.
When changing address reload types for operands that didn't get
reloaded, use RELOAD_FOR_OPADDR_ADDRESS for
RELOAD_FOR_INPADDR_ADDRESS / RELOAD_FOR_OUTADDR_ADDRESS reloads.
Don't emit USEs for pseudo SUBREGs when not replacing.
(find_reloads_address): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
(find_reloads_toplev): Likewise.
Call make_memloc in reg_equiv_address code.
(debug_reload_to_stream): Add code to output reload_out_reg.
(make_memloc): Delete local variable i, ifdefed out code, and
references to memlocs and n_memlocs.
(memlocs, n_memlocs): Delete.
(push_secondary_reload): Clear reload_out_reg.
(find_reloads_address_1): Provide memrefloc argument to all calls
to find_reloads_address.
In AUTO_INC code, handle non-directly addressable equivalences properly.
* reload.h (reload_out_reg, num_not_at_initial_offset): Declare.
(find_reloads): Add return type.
(remove_address_replacements, deallocate_reload_reg): Declare.
* reload1.c (num_not_at_initial_offset): No longer static.
(delete_address_reloads, delete_address_reloads_1): Likewise.
(deallocate_reload_reg): New function.
(spill_reg_stored_to): New array.
(eliminate_regs): Don't substitute from reg_equiv_memory_loc.
(eliminate_regs_in_insn): Move assignments of previous_offset and
max_offset fields, and recalculation of num_not_at_initial_offset
into new static function:
(update_eliminable_offsets) .
(reload_as_needed): Call update_eliminable_offsetss after calling
find_reloads.
Call forget_old_reloads_1 with contents of reloaded auto_inc
expressions if the actual addressing can't be changed to match the
auto_inc.
(choose_reload_regs): For inheritance, replace
reload_reg_free_before_p test with reload_reg_ions.
(emit_reload_insns): If reload_in is a MEM, set OLD to
reload_in_reg[j].
Don't reload directly from oldequiv; if it's a pseudo with a
stack slot, use reload_in[j].
Check that reload_in_reg[j] is a MEM before replacing reload_in
from reg_reloaded_contents.
Include non-spill registers in reload inheritance processing.
Also try to use reload_out_reg to set spill_reg_store /
reg_last_reload_reg.
In code to set new_spill_reg_store, use single_set to find out if
there is a single set.
Add code that allows to delete optional output reloads.
Add code to allow deletion of output reloads that use no spill reg.
At the end, set reload_override_in to oldequiv.
Also call delete_output_reload if reload_out_reg is equal to old
in oldequiv code.
Add code to call delete_output_reload for stores with no matching load.
Set / use spill_reg_stored_to.
Handle case where secondary output reload uses a temporary, but
actual store isn't found.
When looking for a store of a value not loaded in order to call
delete_output_reload, count_occurences should return 0 for no
loads; but discount inherited input reloadill_reg_stored_to.
Do checks for extra uses of REG. Changed all
callers.
Use delete_address_reloads.
(reload): Take return value of find_reloads into account.
If a no-op set needs more than one reload, delete it.
(reload_reg_free_before_p): RELOAD_FOR_INPUT
can ignore RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS
for the same operand.
(clear_reload_reg_in_use): Check for other reloads that keep a
register in use.
(reload_reg_free_for_value_p): handle RELOAD_FOR_OPERAND_ADDRESS /
RELOAD_FOR_OPADDR_ADDR.
Take into account when an address address reload is only needed
for the address reload we are considering.
(count_occurrences): Use rtx_equal_p for MEMs.
(inc_for_reload): Return instruction that stores into RELOADREG.
New argument two, IN, and rtx. Changed all callers.
(calculate_needs_all_insns, reload_as_needed):
Don't clear after_call for a CLOBBER.
Keep track of how many hard registers need to be copied from
after_call, and don't clear after_call before we have seen
that much copies, or we see a different instruction.
From-SVN: r23143
1998-10-16 21:54:38 +02:00
|
|
|
|
|| ! offsettable_memref_p (reg_equiv_mem[regno])
|
|
|
|
|
|| num_not_at_initial_offset))))
|
1999-02-12 14:12:48 +01:00
|
|
|
|
x = find_reloads_subreg_address (x, 1, opnum, type, ind_levels,
|
|
|
|
|
insn);
|
1992-02-28 11:23:25 +01:00
|
|
|
|
}
|
|
|
|
|
|
1999-03-18 12:12:01 +01:00
|
|
|
|
for (copied = 0, i = GET_RTX_LENGTH (code) - 1; i >= 0; i--)
|
1992-02-28 11:23:25 +01:00
|
|
|
|
{
|
|
|
|
|
if (fmt[i] == 'e')
|
1999-03-18 12:12:01 +01:00
|
|
|
|
{
|
|
|
|
|
rtx new_part = find_reloads_toplev (XEXP (x, i), opnum, type,
|
2000-07-23 08:17:41 +02:00
|
|
|
|
ind_levels, is_set_dest, insn,
|
|
|
|
|
address_reloaded);
|
1999-03-18 12:12:01 +01:00
|
|
|
|
/* If we have replaced a reg with it's equivalent memory loc -
|
|
|
|
|
that can still be handled here e.g. if it's in a paradoxical
|
|
|
|
|
subreg - we must make the change in a copy, rather than using
|
|
|
|
|
a destructive change. This way, find_reloads can still elect
|
|
|
|
|
not to do the change. */
|
|
|
|
|
if (new_part != XEXP (x, i) && ! CONSTANT_P (new_part) && ! copied)
|
|
|
|
|
{
|
1999-03-22 14:11:31 +01:00
|
|
|
|
x = shallow_copy_rtx (x);
|
1999-03-18 12:12:01 +01:00
|
|
|
|
copied = 1;
|
|
|
|
|
}
|
|
|
|
|
XEXP (x, i) = new_part;
|
|
|
|
|
}
|
1992-02-28 11:23:25 +01:00
|
|
|
|
}
|
|
|
|
|
return x;
|
|
|
|
|
}
|
|
|
|
|
|
1993-06-14 10:47:36 +02:00
|
|
|
|
/* Return a mem ref for the memory equivalent of reg REGNO.
|
|
|
|
|
This mem ref is not shared with anything. */
|
|
|
|
|
|
1992-02-28 11:23:25 +01:00
|
|
|
|
static rtx
|
|
|
|
|
make_memloc (ad, regno)
|
|
|
|
|
rtx ad;
|
|
|
|
|
int regno;
|
|
|
|
|
{
|
1995-04-17 21:46:50 +02:00
|
|
|
|
/* We must rerun eliminate_regs, in case the elimination
|
|
|
|
|
offsets have changed. */
|
Fix consistency problems with reg_equiv_{mem,address};
Improve reload inheritance;
* reload.c (reload_out_reg): New variable.
(loc_mentioned_in_p, remove_address_replacements): New functions.
(remove_replacements): Deleted.
(push_reload): Set reload_out_reg[i].
When merging, also set reload_{in,out}_reg[i], and remove
duplicate address reloads.
(combine_reloads): Copy reload_out_reg[i].
(find_reloads): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
Include *recog_operand_loc in commutativity operand changes.
Generate optional output reloads.
Delete reference to n_memlocs. Don't set *recog_operand_loc before
processing operands. Call make_memloc in reg_equiv_address code.
Set *recog_operand_loc only after processing operands, and only
if replace is true. Return a value.
When changing address reload types for operands that didn't get
reloaded, use RELOAD_FOR_OPADDR_ADDRESS for
RELOAD_FOR_INPADDR_ADDRESS / RELOAD_FOR_OUTADDR_ADDRESS reloads.
Don't emit USEs for pseudo SUBREGs when not replacing.
(find_reloads_address): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
(find_reloads_toplev): Likewise.
Call make_memloc in reg_equiv_address code.
(debug_reload_to_stream): Add code to output reload_out_reg.
(make_memloc): Delete local variable i, ifdefed out code, and
references to memlocs and n_memlocs.
(memlocs, n_memlocs): Delete.
(push_secondary_reload): Clear reload_out_reg.
(find_reloads_address_1): Provide memrefloc argument to all calls
to find_reloads_address.
In AUTO_INC code, handle non-directly addressable equivalences properly.
* reload.h (reload_out_reg, num_not_at_initial_offset): Declare.
(find_reloads): Add return type.
(remove_address_replacements, deallocate_reload_reg): Declare.
* reload1.c (num_not_at_initial_offset): No longer static.
(delete_address_reloads, delete_address_reloads_1): Likewise.
(deallocate_reload_reg): New function.
(spill_reg_stored_to): New array.
(eliminate_regs): Don't substitute from reg_equiv_memory_loc.
(eliminate_regs_in_insn): Move assignments of previous_offset and
max_offset fields, and recalculation of num_not_at_initial_offset
into new static function:
(update_eliminable_offsets) .
(reload_as_needed): Call update_eliminable_offsetss after calling
find_reloads.
Call forget_old_reloads_1 with contents of reloaded auto_inc
expressions if the actual addressing can't be changed to match the
auto_inc.
(choose_reload_regs): For inheritance, replace
reload_reg_free_before_p test with reload_reg_ions.
(emit_reload_insns): If reload_in is a MEM, set OLD to
reload_in_reg[j].
Don't reload directly from oldequiv; if it's a pseudo with a
stack slot, use reload_in[j].
Check that reload_in_reg[j] is a MEM before replacing reload_in
from reg_reloaded_contents.
Include non-spill registers in reload inheritance processing.
Also try to use reload_out_reg to set spill_reg_store /
reg_last_reload_reg.
In code to set new_spill_reg_store, use single_set to find out if
there is a single set.
Add code that allows to delete optional output reloads.
Add code to allow deletion of output reloads that use no spill reg.
At the end, set reload_override_in to oldequiv.
Also call delete_output_reload if reload_out_reg is equal to old
in oldequiv code.
Add code to call delete_output_reload for stores with no matching load.
Set / use spill_reg_stored_to.
Handle case where secondary output reload uses a temporary, but
actual store isn't found.
When looking for a store of a value not loaded in order to call
delete_output_reload, count_occurences should return 0 for no
loads; but discount inherited input reloadill_reg_stored_to.
Do checks for extra uses of REG. Changed all
callers.
Use delete_address_reloads.
(reload): Take return value of find_reloads into account.
If a no-op set needs more than one reload, delete it.
(reload_reg_free_before_p): RELOAD_FOR_INPUT
can ignore RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS
for the same operand.
(clear_reload_reg_in_use): Check for other reloads that keep a
register in use.
(reload_reg_free_for_value_p): handle RELOAD_FOR_OPERAND_ADDRESS /
RELOAD_FOR_OPADDR_ADDR.
Take into account when an address address reload is only needed
for the address reload we are considering.
(count_occurrences): Use rtx_equal_p for MEMs.
(inc_for_reload): Return instruction that stores into RELOADREG.
New argument two, IN, and rtx. Changed all callers.
(calculate_needs_all_insns, reload_as_needed):
Don't clear after_call for a CLOBBER.
Keep track of how many hard registers need to be copied from
after_call, and don't clear after_call before we have seen
that much copies, or we see a different instruction.
From-SVN: r23143
1998-10-16 21:54:38 +02:00
|
|
|
|
rtx tem
|
|
|
|
|
= XEXP (eliminate_regs (reg_equiv_memory_loc[regno], 0, NULL_RTX), 0);
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
|
|
|
|
/* If TEM might contain a pseudo, we must copy it to avoid
|
|
|
|
|
modifying it when we do the substitution for the reload. */
|
2001-01-01 18:20:09 +01:00
|
|
|
|
if (rtx_varies_p (tem, 0))
|
1992-02-28 11:23:25 +01:00
|
|
|
|
tem = copy_rtx (tem);
|
|
|
|
|
|
[multiple changes]
Mon Jul 9 06:41:07 2001 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
* emit-rtl.c (adjust_address_nv, replace_equiv_address_nv): New fcns.
(operand_subword): Use them.
(change_address_1): Renamed from change_address; new arg VALIDATE.
* expr.h: Reflect above changes; change_address now macro.
* alias.c (canon_rtx): Use replace_equiv_address_nv instead of
making MEM.
* cselib.c (add_mem_for_addr): Likewise.
* expr.c (protect_from_queue, emit_move_insn_1): Likewise.
* regmove.c (try_apply_stack_adjustment): Likewise.
* reload.c (push_reload, make_memloc): Likewise.
* reload1.c (eliminate_regs): Likewise.
* simplify-rtx.c (simplify_replace_rtx): Likewise.
* caller-save.c (setup_save_areas): Use adjust_address_nv instead of
adjust_addess.
* combine.c (make_extraction, simplify_shift_const): Likewise.
(gen_lowpart_for_combine): Likewise.
* cse.c (gen_lowpart_if_possible): Likewise.
* function.c (fixup_var_refs_1, purge_addressof_1): Likewise.
* expr.c (expand_expr, case COMPONENT_REF): Likewise.
* optabs.c (gen_move_insn): Likewise.
* reload1.c (alter_reg): Likewise.
* simplify-rtx.c (simplify_subreg): Likewise.
* stmt.c (expand_anon_union_decl): Likewise.
* recog.c (validate_replace_rtx_1): Likewise.
(expr.h): Include.
* Makefile.in (recog.o): Add $(EXPR_H).
* explow.c (stabilize): Call replace_equiv_address.
* expr.c (move_by_pieces_1, store_by_pieces_2): Likewise.
* final.c (alter_subreg): OFFSET is HOST_WIDE_INT.
2001-07-09 Bo Thorsen <bo@suse.co.uk>
* config/i386/unix.h (ASM_OUTPUT_MI_THUNK): Fix x86-64 vtable support.
2001-07-09 Neil Booth <neil@daikokuya.demon.co.uk>
* final.c (output_addr_const): Use target opening and
closing parentheses.
* target-def.h: Define TARGET_ASM_OPEN_PAREN, TARGET_ASM_CLOSE_PAREN
defaults, add to TARGET_ASM_OUT.
* target.h (struct gcc_target): Add open_paren and close_paren.
* doc/md.texi: Update.
* doc/tm.texi: Document TARGET_ASM_FUNCTION_END_PROLOGUE,
TARGET_ASM_FUNCTION_BEGIN_EPILOGUE, TARGET_ASM_OPEN_PAREN and
TARGET_ASM_CLOSE_PAREN.
* config/i386/i386.c (TARGET_ASM_OPEN_PAREN, TARGET_ASM_CLOSE_PAREN):
Override.
* config/pdp11/pdp11.c (TARGET_ASM_OPEN_PAREN, TARGET_ASM_CLOSE_PAREN):
Override.
* config/1750a/1750a.h (ASM_OPEN_PAREN, ASM_CLOSE_PAREN): Remove.
* config/a29k/a29k.h: Similarly.
* config/alpha/alpha.h: Similarly.
* config/arc/arc.h: Similarly.
* config/arm/aof.h: Similarly.
* config/arm/aout.h: Similarly.
* config/avr/avr.h: Similarly.
* config/c4x/c4x.h: Similarly.
* config/clipper/clipper.h: Similarly.
* config/convex/convex.h: Similarly.
* config/d30v/d30v.h: Similarly.
* config/dsp16xx/dsp16xx.h: Similarly.
* config/elxsi/elxsi.h: Similarly.
* config/fr30/fr30.h: Similarly.
* config/h8300/h8300.h: Similarly.
* config/i370/i370.h: Similarly.
* config/i386/i386.h: Similarly.
* config/i860/i860.h: Similarly.
* config/i960/i960.h: Similarly.
* config/ia64/ia64.h: Similarly.
* config/m32r/m32r.h: Similarly.
* config/m68hc11/m68hc11.h: Similarly.
* config/m68k/m68k.h: Similarly.
* config/m88k/m88k.h: Similarly.
* config/mcore/mcore.h: Similarly.
* config/mips/mips.h: Similarly.
* config/mn10200/mn10200.h: Similarly.
* config/mn10300/mn10300.h: Similarly.
* config/ns32k/ns32k.h: Similarly.
* config/pa/pa.h: Similarly.
* config/pdp11/pdp11.h: Similarly.
* config/pj/pj.h: Similarly.
* config/romp/romp.h: Similarly.
* config/rs6000/rs6000.h: Similarly.
* config/sh/sh.h: Similarly.
* config/sparc/sparc.h: Similarly.
* config/v850/v850.h: Similarly.
* config/vax/vax.h: Similarly.
* config/we32k/we32k.h: Similarly.
2001-07-09 Joseph S. Myers <jsm28@cam.ac.uk>
* doc/c-tree.texi: Document representation of attributes.
2001-07-08 Joseph S. Myers <jsm28@cam.ac.uk>
* doc/tm.texi: Update some places for the rename of target to
targetm. Fix typo.
2001-07-08 Joseph S. Myers <jsm28@cam.ac.uk>
* target.h (struct gcc_target): Add insert_attributes.
* target-def.h (TARGET_INSERT_ATTRIBUTES): Define.
(TARGET_INITIALIZER): Update.
* tree.c, tree.h (default_insert_attributes): New function.
Update comments on other default functions to refer to targetm,
not target.
* doc/tm.texi (INSERT_ATTRIBUTES): Update to document
TARGET_INSERT_ATTRIBUTES.
(SET_DEFAULT_DECL_ATTRIBUTES): Remove.
* c-common.c (decl_attributes): Use targetm.insert_attributes.
Don't use PRAGMA_INSERT_ATTRIBUTES.
* Makefile.in (c-common.o): Depend on $(TARGET_H).
* c-decl.c (start_decl, start_function): Don't call
SET_DEFAULT_DECL_ATTRIBUTES.
* config/c4x/c4x.h (SET_DEFAULT_DECL_ATTRIBUTES): Don't define.
* config/c4x/c4x-protos.h (c4x_set_default_attributes): Don't
declare.
* config/c4x/c4x.c (TARGET_INSERT_ATTRIBUTES): Define.
(c4x_check_attribute): Avoid modifying attribute list itself.
(c4x_set_default_attributes): Rename to c4x_insert_attributes.
Make static.
* config/sh/sh.h (PRAGMA_INSERT_ATTRIBUTES): Don't define.
* config/sh/sh-protos.h (sh_pragma_insert_attributes): Don't
declare.
* config/sh/sh.c (TARGET_INSERT_ATTRIBUTES): Define.
(sh_pragma_insert_attributes): Rename to sh_insert_attributes.
Make static.
* config/v850/v850.h (SET_DEFAULT_DECL_ATTRIBUTES): Don't define.
* config/v850/v850-protos.h (v850_set_default_decl_attr): Don't
declare.
* config/v850/v850.c (TARGET_INSERT_ATTRIBUTES): Define.
(v850_set_default_decl_attr): Rename to v850_insert_attributes.
Adjust parameters. Make static.
2001-07-08 Joseph S. Myers <jsm28@cam.ac.uk>
* c-common.c (decl_attributes): Only take a single attributes
parameter.
* c-common.h (decl_attributes): Update prototype.
* c-decl.c (start_decl, start_function): Only take a single
attributes parameter. Update calls to decl_attributes.
(finish_struct, finish_enum): Update calls to decl_attributes.
(push_parm_decl): Expect unified list of attributes. Update call
to decl_attributes.
* c-parse.in (fndef, initdcl, notype_initdcl, nested_function,
notype_nested_function, component_declarator,
component_notype_declarator, label): Update calls to
decl_attributes.
(absdcl_maybe_attribute, parm, firstparm, myparm): Unify attribute
lists that are passed to push_parm_decl.
* c-tree.h (start_function, start_decl): Update prototypes.
* config/sh/sh-protos.h, config/sh/sh.c
(sh_pragma_insert_attributes): Only take a single attributes
parameter.
* config/sh/sh.h (PRAGMA_INSERT_ATTRIBUTES): Likewise.
* doc/tm.texi (INSERT_ATTRIBUTES): Update.
* objc/objc-act.c (define_decl, generate_objc_symtab_decl,
build_module_descriptor, generate_static_references,
generate_strings, build_selector_translation_table,
generate_descriptor_table, generate_protocols,
generate_ivars_list, generate_dispatch_table,
generate_protocol_list, generate_category,
generate_shared_structures, really_start_method, add_objc_decls,
generate_classref_translation_entry): Update calls to start_decl
and start_function.
(build_tmp_function_decl, start_method_def): Unify attribute lists
that are passed to push_parm_decl.
2001-07-08 Neil Booth <neil@daikokuya.demon.co.uk>
* final.c (no_asm_to_stream): New.
(final_scan_insn): Use target structures for prologue ends
and epilogue starts.
* output.h (no_asm_to_stream): New.
* target-def.h (TARGET_ASM_FUNCTION_END_PROLOGUE,
TARGET_ASM_FUNCTION_BEGIN_EPILOGUE): New.
(TARGET_ASM_OUT): Update.
* target.h (struct gcc_target): New members function_end_prologue
and function_begin_epilogue.
* config/1750/1750.h (ASM_OUTPUT_FUNNAM): Delete as unused.
* config/alpha/alpha-protos.h (output_end_prologue): Delete.
* config/alpha/alpha.c (output_end_prologue): Rename to
alpha_output_function_end_prologue. Use in target struct
and make static.
* config/alpha/alpha.h (FUNCTION_END_PROLOGUE): Delete.
* config/ia64/ia64-protos.h (ia64_output_end_prologue): Delete.
* config/ia64/ia64.c (ia64_output_end_prologue): Rename to
ia64_output_function_end_prologue. Use in target struct
and make static.
(ia64_function_prologue, ia64_funciton_epilogue): Rename
mistyped prototypes.
* config/ia64/ia64.h (FUNCTION_END_PROLOGUE): Delete.
* config/m88k/m88k-protos.h (m88k_end_prologue, m88k_begin_epilogue):
Delete.
* config/m88k/m88k.c (m88k_end_prologue, m88k_begin_epilogue): Rename
an use in target struct, make static.
* config/ia64/ia64.h (FUNCTION_END_PROLOGUE, FUNCTION_BEGIN_EPILOGUE):
Delete.
2001-07-08 Richard Henderson <rth@redhat.com>
* stmt.c (emit_case_nodes): Convert modes properly in low+high test.
2001-07-08 Richard Henderson <rth@redhat.com>
* config/i386/i386.md: Remove constraints strings from define_split
and define_peephole2 patterns.
(eh_return_si, eh_return_di): Split eh_return_1 for modes.
(eh_return): Use them.
2001-07-08 Richard Henderson <rth@redhat.com>
* doc/tm.texi (Exception Handling): New subnode of Stack and Calling.
Document MD_FALLBACK_FRAME_STATE_FOR.
2001-07-07 Stephane Carrez <Stephane.Carrez@worldnet.fr>
* config/m68hc11/m68hc11.c (m68hc11_initial_elimination_offset):
Take into account m68hc11_sp_correction for FRAME_POINTER_REGNUM
elimination.
* config/m68hc11/m68hc11.h (STARTING_FRAME_OFFSET): Use 0.
2001-07-07 Nick Clifton <nickc@cambridge.redhat.com>
* config/ia64/sysv4.h (ASM_OUTPUT_LABELREF): Append # to end
of the label inside NAME as opposed to just the end of NAME.
2001-07-07 Neil Booth <neil@daikokuya.demon.co.uk>
* config/alpha/alpha-protos.h (vms_valid_decl_attribute_p): Delete.
* config/alpha/alpha.c (alpha_init_machine_status,
alpha_mark_machine_status, alpha_free_machine_status): Delete.
(TARGET_VALID_DECL_ATTRIBUTE): Define for VMS.
(vms_valid_decl_attribute_p): Make static, conditionally compile.
* config/alpha/alpha.h (VALID_MACHINE_DECL_ATTRIBUTE): Delete.
2001-07-06 Stan Shebs <shebs@apple.com>
* target.h (targetm): Rename global from "target", so as not to
conflict with local variables.
* c-decl.c: Ditto.
* c-typeck.c: Ditto.
* final.c: Ditto.
* tree.c: Ditto.
* cp/decl.c: Ditto.
* cp/decl2.c: Ditto.
* cp/typeck.c: Ditto.
* 1750a/1750a.c: Ditto.
* a29k/a29k.c: Ditto.
* arc/arc.c: Ditto.
* arm/arm.c: Ditto.
* avr/avr.c: Ditto.
* clipper/clipper.c: Ditto.
* convex/convex.c: Ditto.
* d30v/d30v.c: Ditto.
* dsp16xx/dsp16xx.c: Ditto.
* elxsi/elxsi.c: Ditto.
* fr30/fr30.c: Ditto.
* h8300/h8300.c: Ditto.
* i370/i370.c: Ditto.
* i386/i386.c: Ditto.
* i860/i860.c: Ditto.
* i960/i960.c: Ditto.
* ia64/ia64.c: Ditto.
* m32r/m32r.c: Ditto.
* m68hc11/m68hc11.c: Ditto.
* m68k/m68k.c: Ditto.
* m88k/m88k.c: Ditto.
* mips/mips.c: Ditto.
* ns32k/ns32k.c: Ditto.
* pa/pa.c: Ditto.
* pdp11/pdp11.c: Ditto.
* romp/romp.c: Ditto.
* rs6000/rs6000.c: Ditto.
* sh/sh.c: Ditto.
* sparc/sparc.c: Ditto.
* vax/vax.c: Ditto.
* we32k/we32k.c: Ditto.
* doc/tm.texi: Update the manual to match.
2001-07-06 Richard Henderson <rth@redhat.com>
* except.h (MUST_USE_SJLJ_EXCEPTIONS): Examine the value of
DWARF2_UNWIND_INFO not just whether it is defined.
2001-07-06 Diego Novillo <dnovillo@redhat.com>
* combine.c (combine_simplify_rtx): Also recompute 'mode' if the
call to simplify_binary_operation returns a new pattern.
2001-07-06 Roman Lechtchinsky <rl@cs.tu-berlin.de>
* glimits.h (__SHRT_MAX__): New.
(SHRT_MIN, USHRT_MAX): Define in terms of SHRT_MAX.
(SHRT_MAX): Define in terms of __SHRT_MAX__.
2001-07-06 Jan van Male <jan.vanmale@fenk.wau.nl>
* alias.c (base_alias_check): Cast GET_MODE_UNIT_SIZE to int to
avoid warnings.
2001-07-06 Richard Henderson <rth@redhat.com>
* bitmap.c (bitmap_release_memory): Move adjacent to the
allocation functions.
(bitmap_first_set_bit, bitmap_last_set_bit): Streamline knowing
the implementation. Binary search for the set bit.
(bitmap_union_of_diff): Allocate the temporary on the stack
instead of using xmalloc.
2001-07-06 Richard Henderson <rth@redhat.com>
* genrecog.c (validate_pattern): Warn for constraints in
define_{expand,split,peephole2}. Remove strict_low_part
before looking up match_dup.
2001-07-06 DJ Delorie <dj@redhat.com>
* doc/gcc.texi (Makefile): Rename to be a more general purpose
chapter about various build hints and history. Add section
talking about the various types of native and cross builds.
2001-07-06 Neil Booth <neil@daikokuya.demon.co.uk>
* Makefile.in (final.o): Depend on target.h.
* final.c: Include target.h.
(default_function_pro_epilogue): New.
(final_start_function): Use target structure for function prologues.
(final_end_function): Use target structure for function epilogues.
* fold-const.c (real_hex_to_f): Constify s and p.
* output.h (default_function_pro_epilogue): New.
* real.h (real_hex_to_f): Update prototype.
* target-def.h (TARGET_ASM_FUNCTION_PROLOGUE,
TARGET_ASM_FUNCTION_EPILOGUE, TARGET_ASM_OUT): New.
(TARGET_INITIALIZER): Update.
* target.h (gcc_target): Add struct asm_out.
* doc/tm.texi: Update.
config:
Update each arch to use TARGET_ASM_FUNCTION_PROLOGUE and
TARGET_ASM_FUNCTION_EPILOGUE. Move macro code to functions
in cpu/cpu.c, or rename old functions consistently. Take
a HOST_WIDE INT not an int as the SIZE parameter. Remove now
redundant macros and prototypes. Make new functions static.
* 1750a/1750a.c: Similarly.
* 1750a/1750a.h: Similarly.
* a29k/a29k-protos.h: Similarly.
* a29k/a29k.c: Similarly.
* a29k/a29k.h: Similarly.
* arc/arc-protos.h: Similarly.
* arc/arc.c: Similarly.
* arc/arc.h: Similarly.
* arm/arm-protos.h: Similarly.
* arm/arm.c: Similarly.
* arm/arm.h: Similarly.
* avr/avr-protos.h: Similarly.
* avr/avr.c: Similarly.
* avr/avr.h: Similarly.
* clipper/clipper-protos.h: Similarly.
* clipper/clipper.c: Similarly.
* clipper/clipper.h: Similarly.
* convex/convex.c: Similarly.
* convex/convex.h: Similarly.
* d30v/d30v-protos.h: Similarly.
* d30v/d30v.c: Similarly.
* d30v/d30v.h: Similarly.
* d30v/d30v.md: Similarly.
* dsp16xx/dsp16xx-protos.h: Similarly.
* dsp16xx/dsp16xx.c: Similarly.
* dsp16xx/dsp16xx.h: Similarly.
* elxsi/elxsi.c: Similarly.
* elxsi/elxsi.h: Similarly.
* fr30/fr30.c: Similarly.
* fr30/fr30.md: Similarly.
* h8300/h8300-protos.h: Similarly.
* h8300/h8300.c: Similarly.
* h8300/h8300.h: Similarly.
* i370/i370-protos.h: Similarly.
* i370/i370.c: Similarly.
* i370/i370.h: Similarly.
* i386/i386.c: Similarly.
* i386/osf1elf.h: Similarly.
* i386/osfrose.h: Similarly.
* i860/i860-protos.h: Similarly.
* i860/i860.c: Similarly.
* i860/i860.h: Similarly.
* i960/i960-protos.h: Similarly.
* i960/i960.c: Similarly.
* i960/i960.h: Similarly.
* ia64/ia64-protos.h: Similarly.
* ia64/ia64.c: Similarly.
* ia64/ia64.h: Similarly.
* m32r/m32r-protos.h: Similarly.
* m32r/m32r.c: Similarly.
* m32r/m32r.h: Similarly.
* m68hc11/m68hc11-protos.h: Similarly.
* m68hc11/m68hc11.c: Similarly.
* m68hc11/m68hc11.h: Similarly.
* m68k/crds.h: Similarly.
* m68k/dpx2.h: Similarly.
* m68k/m68k-protos.h: Similarly.
* m68k/m68k.c: Similarly.
* m68k/m68k.h: Similarly.
* m68k/news.h: Similarly.
* m88k/m88k-protos.h: Similarly.
* m88k/m88k.c: Similarly.
* m88k/m88k.h: Similarly.
* mips/mips-protos.h: Similarly.
* mips/mips.c: Similarly.
* mips/mips.h: Similarly.
* ns32k/merlin.h: Similarly.
* ns32k/ns32k.c: Similarly.
* ns32k/ns32k.h: Similarly.
* ns32k/tek6000.h: Similarly.
* pa/pa-protos.h: Similarly.
* pa/pa.c: Similarly.
* pa/pa.h: Similarly.
* pdp11/2bsd.h: Similarly.
* pdp11/pdp11-protos.h: Similarly.
* pdp11/pdp11.c: Similarly.
* pdp11/pdp11.h: Similarly.
* romp/romp-protos.h: Similarly.
* romp/romp.c: Similarly.
* romp/romp.h: Similarly.
* rs6000/rs6000-protos.h: Similarly.
* rs6000/rs6000.c: Similarly.
* rs6000/rs6000.h: Similarly.
* rs6000/sysv4.h: Similarly.
* sh/sh-protos.h: Similarly.
* sh/sh.c: Similarly.
* sh/sh.h: Similarly.
* sparc/sparc-protos.h: Similarly.
* sparc/sparc.c: Similarly.
* sparc/sparc.h: Similarly.
* vax/vax.c: Similarly.
* vax/vax.h: Similarly.
* vax/vms.h: Similarly.
* we32k/we32k.c: Similarly.
* we32k/we32k.h: Similarly.
Fri Jul 6 11:47:59 2001 Jeffrey A Law (law@cygnus.com)
* basic-block.h (first_insn_after_basic_block_note): Declare.
* flow.c (first_insn_after_basic_block_note): Define. Moved
from...
* ssa.c (first_insn_after_basic_block_note): Remove.
* ssa-dce.c (find_inherently_necessary): Consider BARRIERs
necessary.
(ssa_eliminate_dead_code): Properly update the CFG and PHI
nodes when we find a dead conditional branch. Insert BARRIERs
after any blocks with no successors, but which do not have
any BARRIERs.
2001-07-06 Zack Weinberg <zackw@stanford.edu>
* varray.c (varray_check_failed): Use internal_error.
2001-07-05 Andrew Haley <aph@redhat.com>
* Makefile.in (LIB2_DIVMOD_FUNCS): New.
(LIB2FUNCS): Move divmod functions to LIB2_DIVMOD_FUNCS.
* mklibgcc.in: Compile LIB2_DIVMOD_FUNCS.
2001-07-02 Jason Merrill <jason_merrill@redhat.com>
* dwarf2out.c (mem_loc_descriptor): Only look through a constant pool
reference if the target constant is also a SYMBOL_REF.
2001-07-05 Eric Christopher <echristo@redhat.com>
* config/mips/mips.h (MASK_MIPS3900): Remove.
(MASK_MIPS16,MASK_NO_CHECK_ZERO_DIV,MASK_CHECK_RANGE_DIV,
MASK_UNINIT_CONST_IN_RODATA): Change for 3900 mask removal.
(TARGET_MIPS3900): Change to use mips_arch.
(TARGET_MIPS4000): New.
(TARGET_MIPS4100): New.
(TARGET_MIPS4300): New.
(TARGET_SWITCHES): Change 3900 and 4650 options to NULL.
(SUBTARGET_TARGET_OPTIONS): Add -march. Change help text
for -mipsX.
(GENERATE_BRANCHLIKELY): Move TARGET_MIPS3900.
(ISA_HAS_BRANCHLIKELY): To here.
(CC1_CPU_SPEC): New.
(CC1_SPEC): Use here. Remove 4650 and 3900 options.
(mips_arch_string): Declare.
(mips_arch): Declare.
(TARGET_OPTIONS): Add -march and -mtune.
* config/mips/mips.c (mips_arch_string): New.
(mips_arch): New.
(override_options): Handle -march for codegen and -mtune
for scheduling. Use mips_arch. Move tx39 target default here.
(mips_parse_cpu): Move error message to override_options.
* config/mips/r3900.h (TARGET_DEFAULT): Remove.
* config/mips/mips.md: Use TARGET_MIPS4000 and TARGET_MIPS4300.
* doc/invoke.texi (Option Summary): Add -march and -mtune entries.
(MIPS Options): Ditto. Change mcpu entry to historical text.
2001-07-05 H.J. Lu (hjl@gnu.org)
* config/mips/mips.c (mips_parse_cpu): New function to parse
-march=*/-mcpu=*.
2001-07-05 Jim Wilson <wilson@redhat.com>
* config/ia64/lib1funcs.asm: Revert 2001-07-02 change.
* config/ia64/t-ia64: Likewise.
(LIB1ASMFUNCS): Update comment.
2001-07-05 David Edelsohn <edelsohn@gnu.org>
* doc/install.texi (Install GCC: Binaries): Fix typo.
2001-07-04 Stephane Carrez <Stephane.Carrez@worldnet.fr>
* config/m68hc11/m68hc11.md ("*ashlsi3"): Operand 1 can be a memory
reference using the stack pointer, adjust it since we push Y
temporarily.
("*ashrsi3"): Likewise.
("*lshrsi3"): Likewise.
2001-07-05 Stephane Carrez <Stephane.Carrez@worldnet.fr>
* config/m68hc11/m68hc11.h (RETURN_ADDR_RTX): Fix return address
when -fomit-frame-pointer is used.
2001-07-05 Jeffrey Oldham <oldham@codesourcery.com>
* flow.c: Reverse Jan Hubicka's patch of 02July2001.
(try_redirect_by_replacing_jump): Reverse updating properly the
count and frequency information. Reverse removing cc0 setter.
(forwarder_block_p): Reverse fixing for fallthru blocks.
2001-07-05 DJ Delorie <dj@redhat.com>
* gcc.c (TARGET_OPTION_TRANSLATE_TABLE): New.
(translate_options): If the above is defined, use it to map
given options to new options.
* doc/tm.texi: Document it.
2001-07-05 Brad Lucier <lucier@math.purdue.edu>
Gerald Pfeifer <pfeifer@dbai.tuwien.ac.at>
* doc/invoke.texi (Optimize Options): Document that -fgcse may
cause programs using computed gotos to run more slowly.
2001-07-05 Rainer Orth <ro@TechFak.Uni-Bielefeld.DE>
* doc/install.texi (Specific): Markup, spelling and typo fixes.
Fixed sorting.
Consistently require binutils 2.11.2, not prereleases.
(Specific, decstation-*): Canonicalize as mips-dec-*.
(Specific, i?86-*-sco3.2v5*): Remove make bootstrap requirement,
always necessary.
(Specific, m68k-altos): Removed reference to README.altos, deleted.
(Specific, mips-*): Reword MIPS C compiler requirements.
(Specific, powerpc*-*-*): New, mention --with-cpu once.
(Specific, sunv5): Removed, obsolete.
2001-07-05 Nathan Sidwell <nathan@codesourcery.com>
* dwarf2out.c (output_loc_list): Use an all ones mask for
.text asm output and don't rely on long long
literals. Reformat some long lines.
2001-07-05 Andreas Jaeger <aj@suse.de>
* doc/gcc.texi (GNU/Linux): Remove accidental re-add of GPL
section.
2001-07-04 Daniel Berlin <dan@cgsoftware.com>
* dwarf2out.c (dwarf2out_define): Update comment.
(dwarf2out_undef): Ditto.
(dwarf2out_start_source_file): Ditto.
(dwarf2out_end_source_file): Ditto.
(dwarf2out_finish): Output DW_MACINFO_end_file for primary file,
since we never call the start/end debug hook for the primary file.
2001-07-04 Kazu Hirata <kazu@hxi.com>
* config/h8300/h8300.c (get_shift_alg): Remove an extra operand
from shll.
2001-07-04 Nathan Sidwell <nathan@codesourcery.com>
* cppinit.c (remove_dup_dirs): Inform if a system include
directory is being reordered.
* doc/invoke.texi (Directory Options): GCC warns if you hide a
system include.
* doc/cpp.texi (Search Paths): Likewise.
* doc/gcc.texi (Interoperation): Remove information about
-I/usr/include.
2001-07-04 Nathan Sidwell <nathan@codesourcery.com>
* varray.h (VARRAY_TOP_GENERIC_PTR): Remove spurious parameter.
(VARRAY_TOP_CHAR_PTR): Likewise.
2001-07-04 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
* gcc.c (process_command): Don't assign elements of a const char*.
Wed Jul 4 13:40:02 2001 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
* emit-rtl.c (change_address): Don't abort if invalid address while
reload is in progress.
2001-07-04 Daniel Berlin <dan@cgsoftware.com>
* c-lex.c (cb_file_change): Pass line number to
debug_start_source_file.
(cb_undefine): Pass correct line number to debug_undef.
* toplev.c (debug_start_source_file): Add line number to
parameters. Pass it along to dwarf2out_start_source_file.
(decode_g_option): Stop resetting debug level back to normal when
we change debug formats, unless the current level is
none. (Before, -g3 -gdwarf-2 would use debug level 2, rather than
3).
* toplev.h (debug_start_source_file): Add line number to
parameters.
* dwarf2out.h (dwarf2out_start_source_file): Add line number to
parameters.
* dwarf2out.c (dwarf2out_start_source_file): Add line number to
parameters.
Output debug_macinfo data for starting file if requested.
(dwarf2out_end_source_file): Output debug_macinfo data for ending
file if requested.
(dwarf2out_define): Output debug_macinfo data for defining a macro
if requested.
(dwarf2out_undef): Output debug_macinfo data for undefining a
macro if requested.
(DEBUG_MACINFO_SECTION): New. DWARF2 macro info section name.
(DEBUG_MACINFO_SECTION_LABEL): New. DWARF2 macro info section label.
(macinfo_section_label): New. DWARF2 macro info section label.
(dwarf2out_init): If we want macro info, output the start label
for the section.
(dwarf2out_finish): If we want macro info, add a DW_AT_macro_info
attribute to the compilation unit die pointing to the macro info.
2001-07-04 Daniel Berlin <dan@cgsoftware.com>
* dwarf2out.c (new_loc_list): Move to inside #ifdef
DWARF2_DEBUGGING_INFO.
(add_loc_descr_to_loc_list): Ditto.
(output_loc_list): Ditto.
Also, fix thinko in curr not being initialized.
(gen_internal_sym): Ditto.
Wed Jul 4 13:40:02 2001 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
* emit-rtl.c (replace_equiv_address): New function.
* expr.h (replace_equiv_address): New declaration.
* explow.c (validize_mem): Call it instead of change_address and
also call if -fforce-addr and address is constant.
* expr.c: Replace more calls to change_address with adjust_address
and/or replace_equiv_address or to validize_mem.
* function.c, regmove.c, config/alpha/alpha.c: Likewise.
* config/arm/arm.md, config/clipper/clipper.md: Likewise.
* config/dsp16xx/dsp16xx.md, config/fr30/fr30.c: Likewise.
* config/i370/i370.md, config/i860/i860.md: Likewise.
* config/i960/i960.md, config/mips/mips.c: Likewise.
* config/mips/mips.md, config/pa/pa.md: Likewise.
* config/pdp11/pdp11.md, config/rs6000/rs6000.c: Likewise.
* config/rs6000/rs6000.md, config/sh/sh.md: Likewise.
2001-07-04 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
* bitmap.c (bitmap_union_of_diff): Don't use BITMAP_ALLOCA.
* bitmap.h (BITMAP_ALLOCA): Don't pass alloca as an argument to a
function.
2001-07-04 Joseph S. Myers <jsm28@cam.ac.uk>
* doc/include: New directory.
* doc/fdl.texi: Move to doc/include/fdl.texi.
* doc/texinfo.tex: Move to doc/include/texinfo.tex.
* doc/include/funding.texi, doc/include/gpl.texi: New files.
* doc/gcc.texi: Use funding.texi and gpl.texi.
* Makefile.in ($(docdir)/cpp.info, $(docdir)/gcc.info,
$(docdir)/cppinternals.info, cpp.dvi. gcc.dvi. cppinternals.dvi):
Update dependencies and use -I $(docdir)/include.
2001-07-04 Anthony Green <green@redhat.com>
* config/v850/t-v850 (v850-c.o): Add missing dependencies.
2001-07-04 Gerald Pfeifer <pfeifer@dbai.tuwien.ac.at>
* doc/install.texi (sparc64-*-*): Remove garbage.
Wed Jul 4 09:07:44 2001 Jan van Male <jan.vanmale@fenk.wau.nl>
* i386.c (ix86_expand_builtin, case IX86_BUILTIN_SETPS):
Fix typo in last change to use adjust_address.
2001-07-04 Gerald Pfeifer <pfeifer@dbai.tuwien.ac.at>
* doc/install.texi (Specific): Update information for *-*-solaris*.
Tue Jul 3 22:33:15 2001 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
* explow.c (plus_constant_wide): Reinitialize Y for restart.
2001-07-03 Stan Shebs <shebs@apple.com>
* config/darwin.h (SECTION_FUNCTION): Remove WAS_TEXT argument, remove
case for flag_no_mach_text_sections.
(EXTRA_SECTION_FUNCTIONS): Remove arg from uses of SECTION_FUNCTION.
* config/darwin.c (flag_no_mach_text_sections): Remove.
* config/darwin-protos.h (darwin_init_pragma): Remove decl.
Tue Jul 3 15:35:52 2001 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
* explow.c (plus_constant_wide, case PLUS): Call find_constant_term
and avoid checking for constant as first operand.
* recog.c (find_constant_term_loc): No longer static.
(adj_offettable_operand): Delete.
* rtl.h (adj_offsettable_operand): Delete declaration.
(find_constant_term): Add declaration.
* caller-save.c: Replace calls to adj_offsettable_operand with calls
to adjust_address.
* config/arm/arm.c, config/c4x/c4x.c: Likewise.
* config/clipper/clipper.md, config/h8300/h8300.c: Likewise.
* config/i386/i386.c, config/i386/i386.md: Likewise.
* config/i860/i860.c, config/i960/i960.c: Likewise.
* config/i960/i960.md, config/m68hc11/m68hc11.c: Likewise.
* config/m68k/m68k.c, config/m68k/m68k.md: Likewise.
* config/m88k/m88k.md, config/mcore/mcore.c: Likewise.
* config/mips/mips.c, config/mips/mips.md: Likewise.
* config/mn10200/mn10200.c, config/mn10300/mn10300.c: Likewise.
* config/ns32k/ns32k.c, config/ns32k/ns32k.md: Likewise.
* config/pa/pa.c, config/pdp11/pdp11.c: Likewise.
* config/pdp11/pdp11.md, config/sh/sh.c, config/v850/v850.c: Likewise.
* config/vax/vax.md, config/ns32k/ns32k.c: Likewise.
* config/ns32k/ns32k.md: Likewise.
2001-07-03 Zack Weinberg <zackw@stanford.edu>
* rtl.c (copy_rtx): Handle 'T' format letter.
* gensupport.c (collect_insn_data): Likewise.
* print-rtl.c (print_rtx): Print 'T' slots like 's'.
2001-07-03 Nick Clifton <nickc@cambridge.redhat.com>
* doc/invoke.texi (Directory Options): Specifiy range for <N> in
-B option. Use 'dir' not 'foo' as example directory name.
2001-07-03 Rainer Orth <ro@TechFak.Uni-Bielefeld.DE>
* config/i386/sol2.h (ASM_PREFERRED_EH_DATA_FORMAT): Define.
Fixes PRs bootstrap/3067, bootstrap/3249, bootstrap/3275.
2001-07-03 Joseph S. Myers <jsm28@cam.ac.uk>
* doc/cppinternals.texi: Improve formatting and logical markup.
2001-07-03 Andreas Jaeger <aj@suse.de>
* Makefile.in (insn-recog.o): Add dependency on reload.h.
* genrecog.c (write_header): Include reload.h for prototypes in
insn-recog.c.
2001-07-03 Neil Booth <neil@daikokuya.demon.co.uk>
config:
* i386/cygwin.h (VALID_MACHINE_DECL_ATTRIBUTE,
VALID_MACHINE_TYPE_ATTRIBUTE): Remove.
* i386/i386-protos.h (i386_pe_valid_decl_attribute_p,
i386_pe_valid_type_attribute_p): Add.
* i386/i386.c (TARGET_INITIALIZER): Override for cygwin targets.
* i386/winnt.c (i386_valid_decl_attribute_p): Return directly.
Mon Jul 2 21:52:19 2001 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
* explow.c (plus_constant_wide, case LO_SUM): New case.
(plus_constant_for_output_wide): Delete.
* rtl.h (plus_constant_for_output): Delete.
* alias.c (canon_rtx, init_alias_analysis): Call plus_constant
instead of plus_constant_for_output.
* recog.c (offsettable_address_p, adj_offsettable_operand): Likewise.
* config/darwin.c, config/arm/arm.c, config/m68k/m68k.c: Likewise.
* config/m88k/m88k.c, config/mips/mips.c, config/pa/pa.c: Likewise.
* config/rs6000/rs6000.c, config/sparc/sparc.c: Likewise.
* config/sparc/sparc.md: Likewise.
Convert some change_address calls to adjust_address.
2001-07-03 Joseph S. Myers <jsm28@cam.ac.uk>
* doc/extend.texi, doc/gcc.texi, doc/invoke.texi, doc/md.texi,
doc/rtl.texi, doc/tm.texi: Improve formatting. Improve
documentation of -std and -Wwrite-strings.
2001-07-02 Geoffrey Keating <geoffk@redhat.com>
* cse.c (canon_hash): Don't register registers in very small
register classes, as extending their lifetime might cause
reload to fail.
Mon Jul 2 23:14:00 CEST 2001 Jan Hubicka <jh@suse.cz>
* flow.c (try_redirect_by_replacing_jump): Remove cc0 setter.
* flow.c (forwarder_block_p): Fix for fallthru blocks.
(try_redirect_by_replacing_jump): Update properly the count
and frequency information.
Mon Jul 2 14:20:13 2001 Jeffrey A Law (law@cygnus.com)
* toplev.c (dump_file_index): Move SSA dumps just after first
jump dump.
(dump_file): Corresponding changes.
(rest_of_compilation): Move SSA path to just after the first
jump pass.
* doc/gcc.texi (Passes): Update due to movement of SSA path.
* doc/invoke.texi: Update dump file #s as they were completely
out of date with reality.
2001-07-02 Geoffrey Keating <geoffk@redhat.com>
* doc/tm.texi (Frame Layout): Document STACK_PUSH_CODE.
* expr.c (emit_move_insn_1): Deal with non-default
STACK_PUSH_CODE.
* expr.c (emit_single_push_insn): Fix warning.
2001-07-02 Toshiyasu Morita <toshiyasu.morita@hsa.hitachi.com>
* expr.c (emit_move_insn_1): Avoid modifying
cfun->expr->x_stack_pointer when PUSH_ROUNDING is defined.
Mon Jul 2 15:33:31 2001 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
* emit-rtl.c (adjust_address): New function.
* expr.h (adjust_address): Add declaration.
* builtins.c: Replace some calls to change_address with calls to it
or to validize_mem.
* caller-save.c, dwarf2out.c, except.c, expmed.c, expr.c: Likewise.
* function.c, config/a29k/a29k.md, config/alpha/alpha.c: Likewise.
* config/arm/arm.c, config/convex/convex.c: Likewise.
* config/dsp16xx/dsp16xx.md, config/fr30/fr30.c: Likewise.
* config/i386/i386.c, config/i386/i386.md: Likewise.
* config/ia64/ia64.c, config/ia64/ia64.md: Likewise.
* config/m32r/m32r.c, config/m68k/m68k.md: Likewise.
* config/m88k/m88k.c, config/mips/mips.md: Likewise.
* config/ns32k/ns32k.c, config/rs6000/rs6000.c: Likewise.
* config/sh/sh.c, config/sparc/sparc.md: Likewise.
2001-07-02 Jim Wilson <wilson@redhat.com>
* config/ia64/ia64.h: Delete obsolete lib1funcs.asm comment.
2001-07-02 Steve Ellcey <sje@cup.hp.com>
* config/ia64/t-ia64: Change LIB1ASMFUNCS to use single underscore.
* config/ia64/lib1funcs.asm: Change macro names to match t-ia64.
2001-07-02 Zack Weinberg <zackw@stanford.edu>
* cppinit.c (lang_defaults): New table.
(set_lang): Just read from lang_defaults into the live options
structure.
2001-07-02 Zack Weinberg <zackw@stanford.edu>
* Makefile.in (doc): Depend on $(GENERATED_MANPAGES).
* doc/.cvsignore: Add gcc.1, cpp.1, gcov.1.
* doc/gcc.1, doc/cpp.1, doc/gcov.1: Removed.
2001-07-02 Rainer Orth <ro@TechFak.Uni-Bielefeld.DE>
* doc/install.texi: Various spelling and markup fixes.
(Installing GCC): Component specific installation instructions are
gone.
Fix reference.
Warn about removing old install dir in the presence of shared libs.
(Configuration): Invoke with options target to match configure
--help.
Consistently refer to gas, gld pathnames.
Invert --enable-multilib documentation.
Remove references to old compiler versions.
Mon Jul 2 12:50:51 2001 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
* flow.c (try_simplify_condjump): Fix typo in updating fallthru flags.
2001-07-02 Rainer Orth <ro@TechFak.Uni-Bielefeld.DE>
* doc/install.texi (Specific, mips*-sgi-irix4): Split from IRIX 5
section.
(Specific, mips*-sgi-irix5): Note IDO download.
Reworded MIPS C hints.
Use GNU as instead of GAS.
Markup fixes.
Removed SGI Freeware reference, IRIX 6 only.
(Specific, mips*-sgi-irix6): Removed ranlib caveats, obsolete.
Note N64 library requirement/workaround.
Update O32 hints.
Complete list of structure passing bug victims.
2001-07-02 Gerald Pfeifer <pfeifer@dbai.tuwien.ac.at>
* doc/install.texi: Remove CVS Id.
2001-07-02 Andreas Jaeger <aj@suse.de>
* ssa-dce.c (note_inherently_necessary_set): Add unused attribute.
(find_inherently_necessary): Remove unused variable.
2001-07-02 Nathan Sidwell <nathan@codesourcery.com>
* c-common.h (TDI_inlined): New ast dump phase.
(dump_flag_name): New function.
* c-dump.c (dump_files): Add inlined phase.
(dump_flag_name): Define.
* doc/invoke.texi (-fdump-ast-inlined): Document.
Mon Jul 2 06:29:36 2001 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
* stor-layout.c (layout_decl): Revert change to handling of alignment
in packed types.
Sun Jul 1 11:53:52 2001 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
* c-common.c (decl_attributes, case A_MODE): Don't call layout_decl
for FIELD_DECL.
2001-07-01 Geoffrey Keating <geoffk@redhat.com>
* doc/tm.texi (FUNCTION_ARG): Document that the last call
is special.
2001-07-01 Nathan Sidwell <nathan@codesourcery.com>
* tlink.c (recompile_files): Remove COMPILER_PATH and
LIBRARY_PATH from the environment.
2001-07-01 Zack Weinberg <zackw@stanford.edu>
* c-common.h (enum rid): Add RID_FIRST_AT, RID_LAST_AT,
RID_LAST_PQ. Move RID_FIRST_PQ down with the other FIRST/LAST
enumerators.
(OBJC_IS_AT_KEYWORD, OBJC_IS_PQ_KEYWORD): New macros.
* c-parse.in (OBJC_STRING): Kill.
(objc_string): Decompose to [objc_string] '@' STRING.
(reswords): Take the leading '@' off all the Objective C keywords.
(objc_rid_sans_at): Kill.
(init_reswords): Don't initialize it.
(yylexname): Use OBJC_IS_AT_KEYWORD and OBJC_IS_PQ_KEYWORD.
(_yylex): Kill reconsider label. Look ahead one token after
an '@'; if we get an identifier, check whether it's an
Objective C @-keyword. If so, return the keyword. Otherwise,
put back the token and return the '@' as a terminal.
* cpplib.c (lex_macro_node): Remove unnecessary check for
leading '@' on identifier. Clarify control flow and commentary.
Sun Jul 1 11:53:52 2001 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
* cse.c (new_label_ref): Variable deleted.
(insert): Remove set of new_label_ref.
(check_for_label_ref): New function.
(cse_basic_block): Don't check new_label_ref; call check_for_label_ref.
See ChangeLog.5 for earlier changes.
From-SVN: r43861
2001-07-09 13:20:51 +02:00
|
|
|
|
tem = replace_equiv_address_nv (reg_equiv_memory_loc[regno], tem);
|
2001-08-25 23:39:47 +02:00
|
|
|
|
tem = adjust_address_nv (tem, GET_MODE (ad), 0);
|
|
|
|
|
|
|
|
|
|
/* Copy the result if it's still the same as the equivalence, to avoid
|
|
|
|
|
modifying it when we do the substitution for the reload. */
|
|
|
|
|
if (tem == reg_equiv_memory_loc[regno])
|
|
|
|
|
tem = copy_rtx (tem);
|
|
|
|
|
return tem;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Record all reloads needed for handling memory address AD
|
|
|
|
|
which appears in *LOC in a memory reference to mode MODE
|
|
|
|
|
which itself is found in location *MEMREFLOC.
|
|
|
|
|
Note that we take shortcuts assuming that no multi-reg machine mode
|
|
|
|
|
occurs as part of an address.
|
|
|
|
|
|
1993-03-29 13:27:52 +02:00
|
|
|
|
OPNUM and TYPE specify the purpose of this reload.
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
|
|
|
|
IND_LEVELS says how many levels of indirect addressing this machine
|
|
|
|
|
supports.
|
|
|
|
|
|
1997-03-15 13:28:39 +01:00
|
|
|
|
INSN, if nonzero, is the insn in which we do the reload. It is used
|
Fix consistency problems with reg_equiv_{mem,address};
Improve reload inheritance;
* reload.c (reload_out_reg): New variable.
(loc_mentioned_in_p, remove_address_replacements): New functions.
(remove_replacements): Deleted.
(push_reload): Set reload_out_reg[i].
When merging, also set reload_{in,out}_reg[i], and remove
duplicate address reloads.
(combine_reloads): Copy reload_out_reg[i].
(find_reloads): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
Include *recog_operand_loc in commutativity operand changes.
Generate optional output reloads.
Delete reference to n_memlocs. Don't set *recog_operand_loc before
processing operands. Call make_memloc in reg_equiv_address code.
Set *recog_operand_loc only after processing operands, and only
if replace is true. Return a value.
When changing address reload types for operands that didn't get
reloaded, use RELOAD_FOR_OPADDR_ADDRESS for
RELOAD_FOR_INPADDR_ADDRESS / RELOAD_FOR_OUTADDR_ADDRESS reloads.
Don't emit USEs for pseudo SUBREGs when not replacing.
(find_reloads_address): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
(find_reloads_toplev): Likewise.
Call make_memloc in reg_equiv_address code.
(debug_reload_to_stream): Add code to output reload_out_reg.
(make_memloc): Delete local variable i, ifdefed out code, and
references to memlocs and n_memlocs.
(memlocs, n_memlocs): Delete.
(push_secondary_reload): Clear reload_out_reg.
(find_reloads_address_1): Provide memrefloc argument to all calls
to find_reloads_address.
In AUTO_INC code, handle non-directly addressable equivalences properly.
* reload.h (reload_out_reg, num_not_at_initial_offset): Declare.
(find_reloads): Add return type.
(remove_address_replacements, deallocate_reload_reg): Declare.
* reload1.c (num_not_at_initial_offset): No longer static.
(delete_address_reloads, delete_address_reloads_1): Likewise.
(deallocate_reload_reg): New function.
(spill_reg_stored_to): New array.
(eliminate_regs): Don't substitute from reg_equiv_memory_loc.
(eliminate_regs_in_insn): Move assignments of previous_offset and
max_offset fields, and recalculation of num_not_at_initial_offset
into new static function:
(update_eliminable_offsets) .
(reload_as_needed): Call update_eliminable_offsetss after calling
find_reloads.
Call forget_old_reloads_1 with contents of reloaded auto_inc
expressions if the actual addressing can't be changed to match the
auto_inc.
(choose_reload_regs): For inheritance, replace
reload_reg_free_before_p test with reload_reg_ions.
(emit_reload_insns): If reload_in is a MEM, set OLD to
reload_in_reg[j].
Don't reload directly from oldequiv; if it's a pseudo with a
stack slot, use reload_in[j].
Check that reload_in_reg[j] is a MEM before replacing reload_in
from reg_reloaded_contents.
Include non-spill registers in reload inheritance processing.
Also try to use reload_out_reg to set spill_reg_store /
reg_last_reload_reg.
In code to set new_spill_reg_store, use single_set to find out if
there is a single set.
Add code that allows to delete optional output reloads.
Add code to allow deletion of output reloads that use no spill reg.
At the end, set reload_override_in to oldequiv.
Also call delete_output_reload if reload_out_reg is equal to old
in oldequiv code.
Add code to call delete_output_reload for stores with no matching load.
Set / use spill_reg_stored_to.
Handle case where secondary output reload uses a temporary, but
actual store isn't found.
When looking for a store of a value not loaded in order to call
delete_output_reload, count_occurences should return 0 for no
loads; but discount inherited input reloadill_reg_stored_to.
Do checks for extra uses of REG. Changed all
callers.
Use delete_address_reloads.
(reload): Take return value of find_reloads into account.
If a no-op set needs more than one reload, delete it.
(reload_reg_free_before_p): RELOAD_FOR_INPUT
can ignore RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS
for the same operand.
(clear_reload_reg_in_use): Check for other reloads that keep a
register in use.
(reload_reg_free_for_value_p): handle RELOAD_FOR_OPERAND_ADDRESS /
RELOAD_FOR_OPADDR_ADDR.
Take into account when an address address reload is only needed
for the address reload we are considering.
(count_occurrences): Use rtx_equal_p for MEMs.
(inc_for_reload): Return instruction that stores into RELOADREG.
New argument two, IN, and rtx. Changed all callers.
(calculate_needs_all_insns, reload_as_needed):
Don't clear after_call for a CLOBBER.
Keep track of how many hard registers need to be copied from
after_call, and don't clear after_call before we have seen
that much copies, or we see a different instruction.
From-SVN: r23143
1998-10-16 21:54:38 +02:00
|
|
|
|
to determine if we may generate output reloads, and where to put USEs
|
|
|
|
|
for pseudos that we have to replace with stack slots.
|
1997-03-15 13:28:39 +01:00
|
|
|
|
|
1992-02-28 11:23:25 +01:00
|
|
|
|
Value is nonzero if this address is reloaded or replaced as a whole.
|
|
|
|
|
This is interesting to the caller if the address is an autoincrement.
|
|
|
|
|
|
|
|
|
|
Note that there is no verification that the address will be valid after
|
|
|
|
|
this routine does its work. Instead, we rely on the fact that the address
|
|
|
|
|
was valid when reload started. So we need only undo things that reload
|
|
|
|
|
could have broken. These are wrong register types, pseudos not allocated
|
|
|
|
|
to a hard register, and frame pointer elimination. */
|
|
|
|
|
|
|
|
|
|
static int
|
1997-03-15 13:28:39 +01:00
|
|
|
|
find_reloads_address (mode, memrefloc, ad, loc, opnum, type, ind_levels, insn)
|
1992-02-28 11:23:25 +01:00
|
|
|
|
enum machine_mode mode;
|
|
|
|
|
rtx *memrefloc;
|
|
|
|
|
rtx ad;
|
|
|
|
|
rtx *loc;
|
1993-03-29 13:27:52 +02:00
|
|
|
|
int opnum;
|
|
|
|
|
enum reload_type type;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
int ind_levels;
|
1997-03-15 13:28:39 +01:00
|
|
|
|
rtx insn;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
{
|
2001-10-11 05:16:15 +02:00
|
|
|
|
int regno;
|
1999-01-27 02:43:17 +01:00
|
|
|
|
int removed_and = 0;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
rtx tem;
|
|
|
|
|
|
|
|
|
|
/* If the address is a register, see if it is a legitimate address and
|
|
|
|
|
reload if not. We first handle the cases where we need not reload
|
|
|
|
|
or where we must reload in a non-standard way. */
|
|
|
|
|
|
|
|
|
|
if (GET_CODE (ad) == REG)
|
|
|
|
|
{
|
|
|
|
|
regno = REGNO (ad);
|
|
|
|
|
|
2001-01-10 03:34:14 +01:00
|
|
|
|
/* If the register is equivalent to an invariant expression, substitute
|
2001-07-24 00:41:10 +02:00
|
|
|
|
the invariant, and eliminate any eliminable register references. */
|
2001-01-10 03:34:14 +01:00
|
|
|
|
tem = reg_equiv_constant[regno];
|
|
|
|
|
if (tem != 0
|
|
|
|
|
&& (tem = eliminate_regs (tem, mode, insn))
|
|
|
|
|
&& strict_memory_address_p (mode, tem))
|
1992-02-28 11:23:25 +01:00
|
|
|
|
{
|
2001-01-10 03:34:14 +01:00
|
|
|
|
*loc = ad = tem;
|
1999-01-27 02:43:17 +01:00
|
|
|
|
return 0;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
}
|
|
|
|
|
|
Fix consistency problems with reg_equiv_{mem,address};
Improve reload inheritance;
* reload.c (reload_out_reg): New variable.
(loc_mentioned_in_p, remove_address_replacements): New functions.
(remove_replacements): Deleted.
(push_reload): Set reload_out_reg[i].
When merging, also set reload_{in,out}_reg[i], and remove
duplicate address reloads.
(combine_reloads): Copy reload_out_reg[i].
(find_reloads): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
Include *recog_operand_loc in commutativity operand changes.
Generate optional output reloads.
Delete reference to n_memlocs. Don't set *recog_operand_loc before
processing operands. Call make_memloc in reg_equiv_address code.
Set *recog_operand_loc only after processing operands, and only
if replace is true. Return a value.
When changing address reload types for operands that didn't get
reloaded, use RELOAD_FOR_OPADDR_ADDRESS for
RELOAD_FOR_INPADDR_ADDRESS / RELOAD_FOR_OUTADDR_ADDRESS reloads.
Don't emit USEs for pseudo SUBREGs when not replacing.
(find_reloads_address): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
(find_reloads_toplev): Likewise.
Call make_memloc in reg_equiv_address code.
(debug_reload_to_stream): Add code to output reload_out_reg.
(make_memloc): Delete local variable i, ifdefed out code, and
references to memlocs and n_memlocs.
(memlocs, n_memlocs): Delete.
(push_secondary_reload): Clear reload_out_reg.
(find_reloads_address_1): Provide memrefloc argument to all calls
to find_reloads_address.
In AUTO_INC code, handle non-directly addressable equivalences properly.
* reload.h (reload_out_reg, num_not_at_initial_offset): Declare.
(find_reloads): Add return type.
(remove_address_replacements, deallocate_reload_reg): Declare.
* reload1.c (num_not_at_initial_offset): No longer static.
(delete_address_reloads, delete_address_reloads_1): Likewise.
(deallocate_reload_reg): New function.
(spill_reg_stored_to): New array.
(eliminate_regs): Don't substitute from reg_equiv_memory_loc.
(eliminate_regs_in_insn): Move assignments of previous_offset and
max_offset fields, and recalculation of num_not_at_initial_offset
into new static function:
(update_eliminable_offsets) .
(reload_as_needed): Call update_eliminable_offsetss after calling
find_reloads.
Call forget_old_reloads_1 with contents of reloaded auto_inc
expressions if the actual addressing can't be changed to match the
auto_inc.
(choose_reload_regs): For inheritance, replace
reload_reg_free_before_p test with reload_reg_ions.
(emit_reload_insns): If reload_in is a MEM, set OLD to
reload_in_reg[j].
Don't reload directly from oldequiv; if it's a pseudo with a
stack slot, use reload_in[j].
Check that reload_in_reg[j] is a MEM before replacing reload_in
from reg_reloaded_contents.
Include non-spill registers in reload inheritance processing.
Also try to use reload_out_reg to set spill_reg_store /
reg_last_reload_reg.
In code to set new_spill_reg_store, use single_set to find out if
there is a single set.
Add code that allows to delete optional output reloads.
Add code to allow deletion of output reloads that use no spill reg.
At the end, set reload_override_in to oldequiv.
Also call delete_output_reload if reload_out_reg is equal to old
in oldequiv code.
Add code to call delete_output_reload for stores with no matching load.
Set / use spill_reg_stored_to.
Handle case where secondary output reload uses a temporary, but
actual store isn't found.
When looking for a store of a value not loaded in order to call
delete_output_reload, count_occurences should return 0 for no
loads; but discount inherited input reloadill_reg_stored_to.
Do checks for extra uses of REG. Changed all
callers.
Use delete_address_reloads.
(reload): Take return value of find_reloads into account.
If a no-op set needs more than one reload, delete it.
(reload_reg_free_before_p): RELOAD_FOR_INPUT
can ignore RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS
for the same operand.
(clear_reload_reg_in_use): Check for other reloads that keep a
register in use.
(reload_reg_free_for_value_p): handle RELOAD_FOR_OPERAND_ADDRESS /
RELOAD_FOR_OPADDR_ADDR.
Take into account when an address address reload is only needed
for the address reload we are considering.
(count_occurrences): Use rtx_equal_p for MEMs.
(inc_for_reload): Return instruction that stores into RELOADREG.
New argument two, IN, and rtx. Changed all callers.
(calculate_needs_all_insns, reload_as_needed):
Don't clear after_call for a CLOBBER.
Keep track of how many hard registers need to be copied from
after_call, and don't clear after_call before we have seen
that much copies, or we see a different instruction.
From-SVN: r23143
1998-10-16 21:54:38 +02:00
|
|
|
|
tem = reg_equiv_memory_loc[regno];
|
|
|
|
|
if (tem != 0)
|
1992-02-28 11:23:25 +01:00
|
|
|
|
{
|
Fix consistency problems with reg_equiv_{mem,address};
Improve reload inheritance;
* reload.c (reload_out_reg): New variable.
(loc_mentioned_in_p, remove_address_replacements): New functions.
(remove_replacements): Deleted.
(push_reload): Set reload_out_reg[i].
When merging, also set reload_{in,out}_reg[i], and remove
duplicate address reloads.
(combine_reloads): Copy reload_out_reg[i].
(find_reloads): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
Include *recog_operand_loc in commutativity operand changes.
Generate optional output reloads.
Delete reference to n_memlocs. Don't set *recog_operand_loc before
processing operands. Call make_memloc in reg_equiv_address code.
Set *recog_operand_loc only after processing operands, and only
if replace is true. Return a value.
When changing address reload types for operands that didn't get
reloaded, use RELOAD_FOR_OPADDR_ADDRESS for
RELOAD_FOR_INPADDR_ADDRESS / RELOAD_FOR_OUTADDR_ADDRESS reloads.
Don't emit USEs for pseudo SUBREGs when not replacing.
(find_reloads_address): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
(find_reloads_toplev): Likewise.
Call make_memloc in reg_equiv_address code.
(debug_reload_to_stream): Add code to output reload_out_reg.
(make_memloc): Delete local variable i, ifdefed out code, and
references to memlocs and n_memlocs.
(memlocs, n_memlocs): Delete.
(push_secondary_reload): Clear reload_out_reg.
(find_reloads_address_1): Provide memrefloc argument to all calls
to find_reloads_address.
In AUTO_INC code, handle non-directly addressable equivalences properly.
* reload.h (reload_out_reg, num_not_at_initial_offset): Declare.
(find_reloads): Add return type.
(remove_address_replacements, deallocate_reload_reg): Declare.
* reload1.c (num_not_at_initial_offset): No longer static.
(delete_address_reloads, delete_address_reloads_1): Likewise.
(deallocate_reload_reg): New function.
(spill_reg_stored_to): New array.
(eliminate_regs): Don't substitute from reg_equiv_memory_loc.
(eliminate_regs_in_insn): Move assignments of previous_offset and
max_offset fields, and recalculation of num_not_at_initial_offset
into new static function:
(update_eliminable_offsets) .
(reload_as_needed): Call update_eliminable_offsetss after calling
find_reloads.
Call forget_old_reloads_1 with contents of reloaded auto_inc
expressions if the actual addressing can't be changed to match the
auto_inc.
(choose_reload_regs): For inheritance, replace
reload_reg_free_before_p test with reload_reg_ions.
(emit_reload_insns): If reload_in is a MEM, set OLD to
reload_in_reg[j].
Don't reload directly from oldequiv; if it's a pseudo with a
stack slot, use reload_in[j].
Check that reload_in_reg[j] is a MEM before replacing reload_in
from reg_reloaded_contents.
Include non-spill registers in reload inheritance processing.
Also try to use reload_out_reg to set spill_reg_store /
reg_last_reload_reg.
In code to set new_spill_reg_store, use single_set to find out if
there is a single set.
Add code that allows to delete optional output reloads.
Add code to allow deletion of output reloads that use no spill reg.
At the end, set reload_override_in to oldequiv.
Also call delete_output_reload if reload_out_reg is equal to old
in oldequiv code.
Add code to call delete_output_reload for stores with no matching load.
Set / use spill_reg_stored_to.
Handle case where secondary output reload uses a temporary, but
actual store isn't found.
When looking for a store of a value not loaded in order to call
delete_output_reload, count_occurences should return 0 for no
loads; but discount inherited input reloadill_reg_stored_to.
Do checks for extra uses of REG. Changed all
callers.
Use delete_address_reloads.
(reload): Take return value of find_reloads into account.
If a no-op set needs more than one reload, delete it.
(reload_reg_free_before_p): RELOAD_FOR_INPUT
can ignore RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS
for the same operand.
(clear_reload_reg_in_use): Check for other reloads that keep a
register in use.
(reload_reg_free_for_value_p): handle RELOAD_FOR_OPERAND_ADDRESS /
RELOAD_FOR_OPADDR_ADDR.
Take into account when an address address reload is only needed
for the address reload we are considering.
(count_occurrences): Use rtx_equal_p for MEMs.
(inc_for_reload): Return instruction that stores into RELOADREG.
New argument two, IN, and rtx. Changed all callers.
(calculate_needs_all_insns, reload_as_needed):
Don't clear after_call for a CLOBBER.
Keep track of how many hard registers need to be copied from
after_call, and don't clear after_call before we have seen
that much copies, or we see a different instruction.
From-SVN: r23143
1998-10-16 21:54:38 +02:00
|
|
|
|
if (reg_equiv_address[regno] != 0 || num_not_at_initial_offset)
|
|
|
|
|
{
|
|
|
|
|
tem = make_memloc (ad, regno);
|
|
|
|
|
if (! strict_memory_address_p (GET_MODE (tem), XEXP (tem, 0)))
|
|
|
|
|
{
|
2002-06-14 03:41:53 +02:00
|
|
|
|
find_reloads_address (GET_MODE (tem), &tem, XEXP (tem, 0),
|
|
|
|
|
&XEXP (tem, 0), opnum,
|
|
|
|
|
ADDR_TYPE (type), ind_levels, insn);
|
Fix consistency problems with reg_equiv_{mem,address};
Improve reload inheritance;
* reload.c (reload_out_reg): New variable.
(loc_mentioned_in_p, remove_address_replacements): New functions.
(remove_replacements): Deleted.
(push_reload): Set reload_out_reg[i].
When merging, also set reload_{in,out}_reg[i], and remove
duplicate address reloads.
(combine_reloads): Copy reload_out_reg[i].
(find_reloads): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
Include *recog_operand_loc in commutativity operand changes.
Generate optional output reloads.
Delete reference to n_memlocs. Don't set *recog_operand_loc before
processing operands. Call make_memloc in reg_equiv_address code.
Set *recog_operand_loc only after processing operands, and only
if replace is true. Return a value.
When changing address reload types for operands that didn't get
reloaded, use RELOAD_FOR_OPADDR_ADDRESS for
RELOAD_FOR_INPADDR_ADDRESS / RELOAD_FOR_OUTADDR_ADDRESS reloads.
Don't emit USEs for pseudo SUBREGs when not replacing.
(find_reloads_address): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
(find_reloads_toplev): Likewise.
Call make_memloc in reg_equiv_address code.
(debug_reload_to_stream): Add code to output reload_out_reg.
(make_memloc): Delete local variable i, ifdefed out code, and
references to memlocs and n_memlocs.
(memlocs, n_memlocs): Delete.
(push_secondary_reload): Clear reload_out_reg.
(find_reloads_address_1): Provide memrefloc argument to all calls
to find_reloads_address.
In AUTO_INC code, handle non-directly addressable equivalences properly.
* reload.h (reload_out_reg, num_not_at_initial_offset): Declare.
(find_reloads): Add return type.
(remove_address_replacements, deallocate_reload_reg): Declare.
* reload1.c (num_not_at_initial_offset): No longer static.
(delete_address_reloads, delete_address_reloads_1): Likewise.
(deallocate_reload_reg): New function.
(spill_reg_stored_to): New array.
(eliminate_regs): Don't substitute from reg_equiv_memory_loc.
(eliminate_regs_in_insn): Move assignments of previous_offset and
max_offset fields, and recalculation of num_not_at_initial_offset
into new static function:
(update_eliminable_offsets) .
(reload_as_needed): Call update_eliminable_offsetss after calling
find_reloads.
Call forget_old_reloads_1 with contents of reloaded auto_inc
expressions if the actual addressing can't be changed to match the
auto_inc.
(choose_reload_regs): For inheritance, replace
reload_reg_free_before_p test with reload_reg_ions.
(emit_reload_insns): If reload_in is a MEM, set OLD to
reload_in_reg[j].
Don't reload directly from oldequiv; if it's a pseudo with a
stack slot, use reload_in[j].
Check that reload_in_reg[j] is a MEM before replacing reload_in
from reg_reloaded_contents.
Include non-spill registers in reload inheritance processing.
Also try to use reload_out_reg to set spill_reg_store /
reg_last_reload_reg.
In code to set new_spill_reg_store, use single_set to find out if
there is a single set.
Add code that allows to delete optional output reloads.
Add code to allow deletion of output reloads that use no spill reg.
At the end, set reload_override_in to oldequiv.
Also call delete_output_reload if reload_out_reg is equal to old
in oldequiv code.
Add code to call delete_output_reload for stores with no matching load.
Set / use spill_reg_stored_to.
Handle case where secondary output reload uses a temporary, but
actual store isn't found.
When looking for a store of a value not loaded in order to call
delete_output_reload, count_occurences should return 0 for no
loads; but discount inherited input reloadill_reg_stored_to.
Do checks for extra uses of REG. Changed all
callers.
Use delete_address_reloads.
(reload): Take return value of find_reloads into account.
If a no-op set needs more than one reload, delete it.
(reload_reg_free_before_p): RELOAD_FOR_INPUT
can ignore RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS
for the same operand.
(clear_reload_reg_in_use): Check for other reloads that keep a
register in use.
(reload_reg_free_for_value_p): handle RELOAD_FOR_OPERAND_ADDRESS /
RELOAD_FOR_OPADDR_ADDR.
Take into account when an address address reload is only needed
for the address reload we are considering.
(count_occurrences): Use rtx_equal_p for MEMs.
(inc_for_reload): Return instruction that stores into RELOADREG.
New argument two, IN, and rtx. Changed all callers.
(calculate_needs_all_insns, reload_as_needed):
Don't clear after_call for a CLOBBER.
Keep track of how many hard registers need to be copied from
after_call, and don't clear after_call before we have seen
that much copies, or we see a different instruction.
From-SVN: r23143
1998-10-16 21:54:38 +02:00
|
|
|
|
}
|
|
|
|
|
/* We can avoid a reload if the register's equivalent memory
|
|
|
|
|
expression is valid as an indirect memory address.
|
|
|
|
|
But not all addresses are valid in a mem used as an indirect
|
|
|
|
|
address: only reg or reg+constant. */
|
|
|
|
|
|
|
|
|
|
if (ind_levels > 0
|
|
|
|
|
&& strict_memory_address_p (mode, tem)
|
|
|
|
|
&& (GET_CODE (XEXP (tem, 0)) == REG
|
|
|
|
|
|| (GET_CODE (XEXP (tem, 0)) == PLUS
|
|
|
|
|
&& GET_CODE (XEXP (XEXP (tem, 0), 0)) == REG
|
|
|
|
|
&& CONSTANT_P (XEXP (XEXP (tem, 0), 1)))))
|
|
|
|
|
{
|
|
|
|
|
/* TEM is not the same as what we'll be replacing the
|
|
|
|
|
pseudo with after reload, put a USE in front of INSN
|
|
|
|
|
in the final reload pass. */
|
|
|
|
|
if (replace_reloads
|
|
|
|
|
&& num_not_at_initial_offset
|
|
|
|
|
&& ! rtx_equal_p (tem, reg_equiv_mem[regno]))
|
|
|
|
|
{
|
|
|
|
|
*loc = tem;
|
2001-09-29 23:52:12 +02:00
|
|
|
|
/* We mark the USE with QImode so that we
|
|
|
|
|
recognize it as one that can be safely
|
|
|
|
|
deleted at the end of reload. */
|
|
|
|
|
PUT_MODE (emit_insn_before (gen_rtx_USE (VOIDmode, ad),
|
|
|
|
|
insn), QImode);
|
|
|
|
|
|
Fix consistency problems with reg_equiv_{mem,address};
Improve reload inheritance;
* reload.c (reload_out_reg): New variable.
(loc_mentioned_in_p, remove_address_replacements): New functions.
(remove_replacements): Deleted.
(push_reload): Set reload_out_reg[i].
When merging, also set reload_{in,out}_reg[i], and remove
duplicate address reloads.
(combine_reloads): Copy reload_out_reg[i].
(find_reloads): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
Include *recog_operand_loc in commutativity operand changes.
Generate optional output reloads.
Delete reference to n_memlocs. Don't set *recog_operand_loc before
processing operands. Call make_memloc in reg_equiv_address code.
Set *recog_operand_loc only after processing operands, and only
if replace is true. Return a value.
When changing address reload types for operands that didn't get
reloaded, use RELOAD_FOR_OPADDR_ADDRESS for
RELOAD_FOR_INPADDR_ADDRESS / RELOAD_FOR_OUTADDR_ADDRESS reloads.
Don't emit USEs for pseudo SUBREGs when not replacing.
(find_reloads_address): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
(find_reloads_toplev): Likewise.
Call make_memloc in reg_equiv_address code.
(debug_reload_to_stream): Add code to output reload_out_reg.
(make_memloc): Delete local variable i, ifdefed out code, and
references to memlocs and n_memlocs.
(memlocs, n_memlocs): Delete.
(push_secondary_reload): Clear reload_out_reg.
(find_reloads_address_1): Provide memrefloc argument to all calls
to find_reloads_address.
In AUTO_INC code, handle non-directly addressable equivalences properly.
* reload.h (reload_out_reg, num_not_at_initial_offset): Declare.
(find_reloads): Add return type.
(remove_address_replacements, deallocate_reload_reg): Declare.
* reload1.c (num_not_at_initial_offset): No longer static.
(delete_address_reloads, delete_address_reloads_1): Likewise.
(deallocate_reload_reg): New function.
(spill_reg_stored_to): New array.
(eliminate_regs): Don't substitute from reg_equiv_memory_loc.
(eliminate_regs_in_insn): Move assignments of previous_offset and
max_offset fields, and recalculation of num_not_at_initial_offset
into new static function:
(update_eliminable_offsets) .
(reload_as_needed): Call update_eliminable_offsetss after calling
find_reloads.
Call forget_old_reloads_1 with contents of reloaded auto_inc
expressions if the actual addressing can't be changed to match the
auto_inc.
(choose_reload_regs): For inheritance, replace
reload_reg_free_before_p test with reload_reg_ions.
(emit_reload_insns): If reload_in is a MEM, set OLD to
reload_in_reg[j].
Don't reload directly from oldequiv; if it's a pseudo with a
stack slot, use reload_in[j].
Check that reload_in_reg[j] is a MEM before replacing reload_in
from reg_reloaded_contents.
Include non-spill registers in reload inheritance processing.
Also try to use reload_out_reg to set spill_reg_store /
reg_last_reload_reg.
In code to set new_spill_reg_store, use single_set to find out if
there is a single set.
Add code that allows to delete optional output reloads.
Add code to allow deletion of output reloads that use no spill reg.
At the end, set reload_override_in to oldequiv.
Also call delete_output_reload if reload_out_reg is equal to old
in oldequiv code.
Add code to call delete_output_reload for stores with no matching load.
Set / use spill_reg_stored_to.
Handle case where secondary output reload uses a temporary, but
actual store isn't found.
When looking for a store of a value not loaded in order to call
delete_output_reload, count_occurences should return 0 for no
loads; but discount inherited input reloadill_reg_stored_to.
Do checks for extra uses of REG. Changed all
callers.
Use delete_address_reloads.
(reload): Take return value of find_reloads into account.
If a no-op set needs more than one reload, delete it.
(reload_reg_free_before_p): RELOAD_FOR_INPUT
can ignore RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS
for the same operand.
(clear_reload_reg_in_use): Check for other reloads that keep a
register in use.
(reload_reg_free_for_value_p): handle RELOAD_FOR_OPERAND_ADDRESS /
RELOAD_FOR_OPADDR_ADDR.
Take into account when an address address reload is only needed
for the address reload we are considering.
(count_occurrences): Use rtx_equal_p for MEMs.
(inc_for_reload): Return instruction that stores into RELOADREG.
New argument two, IN, and rtx. Changed all callers.
(calculate_needs_all_insns, reload_as_needed):
Don't clear after_call for a CLOBBER.
Keep track of how many hard registers need to be copied from
after_call, and don't clear after_call before we have seen
that much copies, or we see a different instruction.
From-SVN: r23143
1998-10-16 21:54:38 +02:00
|
|
|
|
/* This doesn't really count as replacing the address
|
|
|
|
|
as a whole, since it is still a memory access. */
|
|
|
|
|
}
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
ad = tem;
|
|
|
|
|
}
|
1992-02-28 11:23:25 +01:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* The only remaining case where we can avoid a reload is if this is a
|
|
|
|
|
hard register that is valid as a base register and which is not the
|
|
|
|
|
subject of a CLOBBER in this insn. */
|
|
|
|
|
|
1997-01-14 21:38:34 +01:00
|
|
|
|
else if (regno < FIRST_PSEUDO_REGISTER
|
|
|
|
|
&& REGNO_MODE_OK_FOR_BASE_P (regno, mode)
|
2000-11-10 18:10:29 +01:00
|
|
|
|
&& ! regno_clobbered_p (regno, this_insn, mode, 0))
|
1992-02-28 11:23:25 +01:00
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
|
|
/* If we do not have one of the cases above, we must do the reload. */
|
2002-01-10 01:56:56 +01:00
|
|
|
|
push_reload (ad, NULL_RTX, loc, (rtx*) 0, MODE_BASE_REG_CLASS (mode),
|
1993-03-29 13:27:52 +02:00
|
|
|
|
GET_MODE (ad), VOIDmode, 0, 0, opnum, type);
|
1992-02-28 11:23:25 +01:00
|
|
|
|
return 1;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (strict_memory_address_p (mode, ad))
|
|
|
|
|
{
|
|
|
|
|
/* The address appears valid, so reloads are not needed.
|
|
|
|
|
But the address may contain an eliminable register.
|
|
|
|
|
This can happen because a machine with indirect addressing
|
|
|
|
|
may consider a pseudo register by itself a valid address even when
|
|
|
|
|
it has failed to get a hard reg.
|
|
|
|
|
So do a tree-walk to find and eliminate all such regs. */
|
|
|
|
|
|
|
|
|
|
/* But first quickly dispose of a common case. */
|
|
|
|
|
if (GET_CODE (ad) == PLUS
|
|
|
|
|
&& GET_CODE (XEXP (ad, 1)) == CONST_INT
|
|
|
|
|
&& GET_CODE (XEXP (ad, 0)) == REG
|
|
|
|
|
&& reg_equiv_constant[REGNO (XEXP (ad, 0))] == 0)
|
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
|
|
subst_reg_equivs_changed = 0;
|
Fix consistency problems with reg_equiv_{mem,address};
Improve reload inheritance;
* reload.c (reload_out_reg): New variable.
(loc_mentioned_in_p, remove_address_replacements): New functions.
(remove_replacements): Deleted.
(push_reload): Set reload_out_reg[i].
When merging, also set reload_{in,out}_reg[i], and remove
duplicate address reloads.
(combine_reloads): Copy reload_out_reg[i].
(find_reloads): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
Include *recog_operand_loc in commutativity operand changes.
Generate optional output reloads.
Delete reference to n_memlocs. Don't set *recog_operand_loc before
processing operands. Call make_memloc in reg_equiv_address code.
Set *recog_operand_loc only after processing operands, and only
if replace is true. Return a value.
When changing address reload types for operands that didn't get
reloaded, use RELOAD_FOR_OPADDR_ADDRESS for
RELOAD_FOR_INPADDR_ADDRESS / RELOAD_FOR_OUTADDR_ADDRESS reloads.
Don't emit USEs for pseudo SUBREGs when not replacing.
(find_reloads_address): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
(find_reloads_toplev): Likewise.
Call make_memloc in reg_equiv_address code.
(debug_reload_to_stream): Add code to output reload_out_reg.
(make_memloc): Delete local variable i, ifdefed out code, and
references to memlocs and n_memlocs.
(memlocs, n_memlocs): Delete.
(push_secondary_reload): Clear reload_out_reg.
(find_reloads_address_1): Provide memrefloc argument to all calls
to find_reloads_address.
In AUTO_INC code, handle non-directly addressable equivalences properly.
* reload.h (reload_out_reg, num_not_at_initial_offset): Declare.
(find_reloads): Add return type.
(remove_address_replacements, deallocate_reload_reg): Declare.
* reload1.c (num_not_at_initial_offset): No longer static.
(delete_address_reloads, delete_address_reloads_1): Likewise.
(deallocate_reload_reg): New function.
(spill_reg_stored_to): New array.
(eliminate_regs): Don't substitute from reg_equiv_memory_loc.
(eliminate_regs_in_insn): Move assignments of previous_offset and
max_offset fields, and recalculation of num_not_at_initial_offset
into new static function:
(update_eliminable_offsets) .
(reload_as_needed): Call update_eliminable_offsetss after calling
find_reloads.
Call forget_old_reloads_1 with contents of reloaded auto_inc
expressions if the actual addressing can't be changed to match the
auto_inc.
(choose_reload_regs): For inheritance, replace
reload_reg_free_before_p test with reload_reg_ions.
(emit_reload_insns): If reload_in is a MEM, set OLD to
reload_in_reg[j].
Don't reload directly from oldequiv; if it's a pseudo with a
stack slot, use reload_in[j].
Check that reload_in_reg[j] is a MEM before replacing reload_in
from reg_reloaded_contents.
Include non-spill registers in reload inheritance processing.
Also try to use reload_out_reg to set spill_reg_store /
reg_last_reload_reg.
In code to set new_spill_reg_store, use single_set to find out if
there is a single set.
Add code that allows to delete optional output reloads.
Add code to allow deletion of output reloads that use no spill reg.
At the end, set reload_override_in to oldequiv.
Also call delete_output_reload if reload_out_reg is equal to old
in oldequiv code.
Add code to call delete_output_reload for stores with no matching load.
Set / use spill_reg_stored_to.
Handle case where secondary output reload uses a temporary, but
actual store isn't found.
When looking for a store of a value not loaded in order to call
delete_output_reload, count_occurences should return 0 for no
loads; but discount inherited input reloadill_reg_stored_to.
Do checks for extra uses of REG. Changed all
callers.
Use delete_address_reloads.
(reload): Take return value of find_reloads into account.
If a no-op set needs more than one reload, delete it.
(reload_reg_free_before_p): RELOAD_FOR_INPUT
can ignore RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS
for the same operand.
(clear_reload_reg_in_use): Check for other reloads that keep a
register in use.
(reload_reg_free_for_value_p): handle RELOAD_FOR_OPERAND_ADDRESS /
RELOAD_FOR_OPADDR_ADDR.
Take into account when an address address reload is only needed
for the address reload we are considering.
(count_occurrences): Use rtx_equal_p for MEMs.
(inc_for_reload): Return instruction that stores into RELOADREG.
New argument two, IN, and rtx. Changed all callers.
(calculate_needs_all_insns, reload_as_needed):
Don't clear after_call for a CLOBBER.
Keep track of how many hard registers need to be copied from
after_call, and don't clear after_call before we have seen
that much copies, or we see a different instruction.
From-SVN: r23143
1998-10-16 21:54:38 +02:00
|
|
|
|
*loc = subst_reg_equivs (ad, insn);
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
|
|
|
|
if (! subst_reg_equivs_changed)
|
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
|
|
/* Check result for validity after substitution. */
|
|
|
|
|
if (strict_memory_address_p (mode, ad))
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
1998-04-02 04:42:26 +02:00
|
|
|
|
#ifdef LEGITIMIZE_RELOAD_ADDRESS
|
|
|
|
|
do
|
|
|
|
|
{
|
|
|
|
|
if (memrefloc)
|
|
|
|
|
{
|
|
|
|
|
LEGITIMIZE_RELOAD_ADDRESS (ad, GET_MODE (*memrefloc), opnum, type,
|
|
|
|
|
ind_levels, win);
|
|
|
|
|
}
|
|
|
|
|
break;
|
|
|
|
|
win:
|
|
|
|
|
*memrefloc = copy_rtx (*memrefloc);
|
|
|
|
|
XEXP (*memrefloc, 0) = ad;
|
|
|
|
|
move_replacements (&ad, &XEXP (*memrefloc, 0));
|
|
|
|
|
return 1;
|
|
|
|
|
}
|
|
|
|
|
while (0);
|
|
|
|
|
#endif
|
|
|
|
|
|
1999-01-27 02:43:17 +01:00
|
|
|
|
/* The address is not valid. We have to figure out why. First see if
|
|
|
|
|
we have an outer AND and remove it if so. Then analyze what's inside. */
|
|
|
|
|
|
|
|
|
|
if (GET_CODE (ad) == AND)
|
|
|
|
|
{
|
|
|
|
|
removed_and = 1;
|
|
|
|
|
loc = &XEXP (ad, 0);
|
|
|
|
|
ad = *loc;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* One possibility for why the address is invalid is that it is itself
|
|
|
|
|
a MEM. This can happen when the frame pointer is being eliminated, a
|
|
|
|
|
pseudo is not allocated to a hard register, and the offset between the
|
|
|
|
|
frame and stack pointers is not its initial value. In that case the
|
|
|
|
|
pseudo will have been replaced by a MEM referring to the
|
|
|
|
|
stack pointer. */
|
1992-02-28 11:23:25 +01:00
|
|
|
|
if (GET_CODE (ad) == MEM)
|
|
|
|
|
{
|
|
|
|
|
/* First ensure that the address in this MEM is valid. Then, unless
|
|
|
|
|
indirect addresses are valid, reload the MEM into a register. */
|
|
|
|
|
tem = ad;
|
|
|
|
|
find_reloads_address (GET_MODE (ad), &tem, XEXP (ad, 0), &XEXP (ad, 0),
|
1997-02-03 19:04:00 +01:00
|
|
|
|
opnum, ADDR_TYPE (type),
|
1997-03-15 13:28:39 +01:00
|
|
|
|
ind_levels == 0 ? 0 : ind_levels - 1, insn);
|
1992-10-06 01:19:55 +01:00
|
|
|
|
|
|
|
|
|
/* If tem was changed, then we must create a new memory reference to
|
|
|
|
|
hold it and store it back into memrefloc. */
|
|
|
|
|
if (tem != ad && memrefloc)
|
1992-10-18 01:49:34 +01:00
|
|
|
|
{
|
|
|
|
|
*memrefloc = copy_rtx (*memrefloc);
|
1992-10-28 23:03:55 +01:00
|
|
|
|
copy_replacements (tem, XEXP (*memrefloc, 0));
|
1992-10-18 01:49:34 +01:00
|
|
|
|
loc = &XEXP (*memrefloc, 0);
|
1999-01-27 02:43:17 +01:00
|
|
|
|
if (removed_and)
|
|
|
|
|
loc = &XEXP (*loc, 0);
|
1992-10-18 01:49:34 +01:00
|
|
|
|
}
|
1992-10-06 01:19:55 +01:00
|
|
|
|
|
1992-02-28 11:23:25 +01:00
|
|
|
|
/* Check similar cases as for indirect addresses as above except
|
|
|
|
|
that we can allow pseudos and a MEM since they should have been
|
|
|
|
|
taken care of above. */
|
|
|
|
|
|
|
|
|
|
if (ind_levels == 0
|
|
|
|
|
|| (GET_CODE (XEXP (tem, 0)) == SYMBOL_REF && ! indirect_symref_ok)
|
|
|
|
|
|| GET_CODE (XEXP (tem, 0)) == MEM
|
|
|
|
|
|| ! (GET_CODE (XEXP (tem, 0)) == REG
|
|
|
|
|
|| (GET_CODE (XEXP (tem, 0)) == PLUS
|
|
|
|
|
&& GET_CODE (XEXP (XEXP (tem, 0), 0)) == REG
|
|
|
|
|
&& GET_CODE (XEXP (XEXP (tem, 0), 1)) == CONST_INT)))
|
|
|
|
|
{
|
|
|
|
|
/* Must use TEM here, not AD, since it is the one that will
|
|
|
|
|
have any subexpressions reloaded, if needed. */
|
2002-01-10 01:56:56 +01:00
|
|
|
|
push_reload (tem, NULL_RTX, loc, (rtx*) 0,
|
2001-12-17 17:46:11 +01:00
|
|
|
|
MODE_BASE_REG_CLASS (mode), GET_MODE (tem),
|
1997-01-15 20:08:08 +01:00
|
|
|
|
VOIDmode, 0,
|
1993-03-29 13:27:52 +02:00
|
|
|
|
0, opnum, type);
|
1999-01-27 02:43:17 +01:00
|
|
|
|
return ! removed_and;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
1995-10-26 23:15:29 +01:00
|
|
|
|
/* If we have address of a stack slot but it's not valid because the
|
|
|
|
|
displacement is too large, compute the sum in a register.
|
|
|
|
|
Handle all base registers here, not just fp/ap/sp, because on some
|
|
|
|
|
targets (namely SH) we can also get too large displacements from
|
|
|
|
|
big-endian corrections. */
|
1992-02-28 11:23:25 +01:00
|
|
|
|
else if (GET_CODE (ad) == PLUS
|
1995-10-26 23:15:29 +01:00
|
|
|
|
&& GET_CODE (XEXP (ad, 0)) == REG
|
|
|
|
|
&& REGNO (XEXP (ad, 0)) < FIRST_PSEUDO_REGISTER
|
1997-01-14 21:38:34 +01:00
|
|
|
|
&& REG_MODE_OK_FOR_BASE_P (XEXP (ad, 0), mode)
|
1992-02-28 11:23:25 +01:00
|
|
|
|
&& GET_CODE (XEXP (ad, 1)) == CONST_INT)
|
|
|
|
|
{
|
|
|
|
|
/* Unshare the MEM rtx so we can safely alter it. */
|
|
|
|
|
if (memrefloc)
|
|
|
|
|
{
|
|
|
|
|
*memrefloc = copy_rtx (*memrefloc);
|
|
|
|
|
loc = &XEXP (*memrefloc, 0);
|
1999-01-27 02:43:17 +01:00
|
|
|
|
if (removed_and)
|
|
|
|
|
loc = &XEXP (*loc, 0);
|
1992-02-28 11:23:25 +01:00
|
|
|
|
}
|
1999-01-27 02:43:17 +01:00
|
|
|
|
|
1992-02-28 11:23:25 +01:00
|
|
|
|
if (double_reg_address_ok)
|
|
|
|
|
{
|
|
|
|
|
/* Unshare the sum as well. */
|
|
|
|
|
*loc = ad = copy_rtx (ad);
|
1999-01-27 02:43:17 +01:00
|
|
|
|
|
1992-02-28 11:23:25 +01:00
|
|
|
|
/* Reload the displacement into an index reg.
|
|
|
|
|
We assume the frame pointer or arg pointer is a base reg. */
|
|
|
|
|
find_reloads_address_part (XEXP (ad, 1), &XEXP (ad, 1),
|
1998-10-27 23:38:40 +01:00
|
|
|
|
INDEX_REG_CLASS, GET_MODE (ad), opnum,
|
|
|
|
|
type, ind_levels);
|
1999-01-27 02:43:17 +01:00
|
|
|
|
return 0;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
/* If the sum of two regs is not necessarily valid,
|
|
|
|
|
reload the sum into a base reg.
|
|
|
|
|
That will at least work. */
|
2001-12-17 17:46:11 +01:00
|
|
|
|
find_reloads_address_part (ad, loc, MODE_BASE_REG_CLASS (mode),
|
1997-01-15 20:08:08 +01:00
|
|
|
|
Pmode, opnum, type, ind_levels);
|
1992-02-28 11:23:25 +01:00
|
|
|
|
}
|
1999-01-27 02:43:17 +01:00
|
|
|
|
return ! removed_and;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* If we have an indexed stack slot, there are three possible reasons why
|
|
|
|
|
it might be invalid: The index might need to be reloaded, the address
|
|
|
|
|
might have been made by frame pointer elimination and hence have a
|
1999-09-01 16:30:35 +02:00
|
|
|
|
constant out of range, or both reasons might apply.
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
|
|
|
|
We can easily check for an index needing reload, but even if that is the
|
|
|
|
|
case, we might also have an invalid constant. To avoid making the
|
|
|
|
|
conservative assumption and requiring two reloads, we see if this address
|
|
|
|
|
is valid when not interpreted strictly. If it is, the only problem is
|
|
|
|
|
that the index needs a reload and find_reloads_address_1 will take care
|
|
|
|
|
of it.
|
|
|
|
|
|
|
|
|
|
If we decide to do something here, it must be that
|
|
|
|
|
`double_reg_address_ok' is true and that this address rtl was made by
|
|
|
|
|
eliminate_regs. We generate a reload of the fp/sp/ap + constant and
|
|
|
|
|
rework the sum so that the reload register will be added to the index.
|
|
|
|
|
This is safe because we know the address isn't shared.
|
|
|
|
|
|
|
|
|
|
We check for fp/ap/sp as both the first and second operand of the
|
|
|
|
|
innermost PLUS. */
|
|
|
|
|
|
|
|
|
|
else if (GET_CODE (ad) == PLUS && GET_CODE (XEXP (ad, 1)) == CONST_INT
|
1997-02-19 01:39:39 +01:00
|
|
|
|
&& GET_CODE (XEXP (ad, 0)) == PLUS
|
1992-02-28 11:23:25 +01:00
|
|
|
|
&& (XEXP (XEXP (ad, 0), 0) == frame_pointer_rtx
|
1993-09-24 21:50:44 +02:00
|
|
|
|
#if FRAME_POINTER_REGNUM != HARD_FRAME_POINTER_REGNUM
|
|
|
|
|
|| XEXP (XEXP (ad, 0), 0) == hard_frame_pointer_rtx
|
|
|
|
|
#endif
|
1992-02-28 11:23:25 +01:00
|
|
|
|
#if FRAME_POINTER_REGNUM != ARG_POINTER_REGNUM
|
|
|
|
|
|| XEXP (XEXP (ad, 0), 0) == arg_pointer_rtx
|
|
|
|
|
#endif
|
|
|
|
|
|| XEXP (XEXP (ad, 0), 0) == stack_pointer_rtx)
|
|
|
|
|
&& ! memory_address_p (mode, ad))
|
|
|
|
|
{
|
alias.c: Change all uses of gen_rtx(FOO...) to gen_rtx_FOO...
* alias.c: Change all uses of gen_rtx(FOO...) to gen_rtx_FOO;
change gen_rtx(expr...) to gen_rtx_fmt_foo(expr...).
* caller-save.c, calls.c, combine.c, cse.c: Likewise.
* dwarf2out.c, except.c, explow.c, expmed.c, expr.c: Likewise.
* final.c, flow.c, function.c, genpeep.c, haifa-sched.c: Likewise.
* halfpic.c, integrate.c, jump.c, local-alloc.c, loop.c: Likewise.
* profile.c, recog.c, reg-stack.c, regclass.c, regmove.c: Likewise.
* reload.c, reload1.c, reorg.c, sched.c, stmt.c, stupid.c: Likewise.
* unroll.c, varasm.c: Likewise.
* config/alpha/alpha.c, config/alpha/alpha.md: Likewise.
From-SVN: r17357
1998-01-15 00:10:50 +01:00
|
|
|
|
*loc = ad = gen_rtx_PLUS (GET_MODE (ad),
|
|
|
|
|
plus_constant (XEXP (XEXP (ad, 0), 0),
|
|
|
|
|
INTVAL (XEXP (ad, 1))),
|
1999-09-01 16:30:35 +02:00
|
|
|
|
XEXP (XEXP (ad, 0), 1));
|
2001-12-17 17:46:11 +01:00
|
|
|
|
find_reloads_address_part (XEXP (ad, 0), &XEXP (ad, 0),
|
|
|
|
|
MODE_BASE_REG_CLASS (mode),
|
1993-03-29 13:27:52 +02:00
|
|
|
|
GET_MODE (ad), opnum, type, ind_levels);
|
1997-01-14 21:38:34 +01:00
|
|
|
|
find_reloads_address_1 (mode, XEXP (ad, 1), 1, &XEXP (ad, 1), opnum,
|
1997-03-15 13:28:39 +01:00
|
|
|
|
type, 0, insn);
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
1999-01-27 02:43:17 +01:00
|
|
|
|
return 0;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
}
|
1999-09-01 16:30:35 +02:00
|
|
|
|
|
1992-02-28 11:23:25 +01:00
|
|
|
|
else if (GET_CODE (ad) == PLUS && GET_CODE (XEXP (ad, 1)) == CONST_INT
|
|
|
|
|
&& GET_CODE (XEXP (ad, 0)) == PLUS
|
|
|
|
|
&& (XEXP (XEXP (ad, 0), 1) == frame_pointer_rtx
|
1993-09-24 21:50:44 +02:00
|
|
|
|
#if HARD_FRAME_POINTER_REGNUM != FRAME_POINTER_REGNUM
|
|
|
|
|
|| XEXP (XEXP (ad, 0), 1) == hard_frame_pointer_rtx
|
|
|
|
|
#endif
|
1992-02-28 11:23:25 +01:00
|
|
|
|
#if FRAME_POINTER_REGNUM != ARG_POINTER_REGNUM
|
|
|
|
|
|| XEXP (XEXP (ad, 0), 1) == arg_pointer_rtx
|
|
|
|
|
#endif
|
|
|
|
|
|| XEXP (XEXP (ad, 0), 1) == stack_pointer_rtx)
|
|
|
|
|
&& ! memory_address_p (mode, ad))
|
|
|
|
|
{
|
alias.c: Change all uses of gen_rtx(FOO...) to gen_rtx_FOO...
* alias.c: Change all uses of gen_rtx(FOO...) to gen_rtx_FOO;
change gen_rtx(expr...) to gen_rtx_fmt_foo(expr...).
* caller-save.c, calls.c, combine.c, cse.c: Likewise.
* dwarf2out.c, except.c, explow.c, expmed.c, expr.c: Likewise.
* final.c, flow.c, function.c, genpeep.c, haifa-sched.c: Likewise.
* halfpic.c, integrate.c, jump.c, local-alloc.c, loop.c: Likewise.
* profile.c, recog.c, reg-stack.c, regclass.c, regmove.c: Likewise.
* reload.c, reload1.c, reorg.c, sched.c, stmt.c, stupid.c: Likewise.
* unroll.c, varasm.c: Likewise.
* config/alpha/alpha.c, config/alpha/alpha.md: Likewise.
From-SVN: r17357
1998-01-15 00:10:50 +01:00
|
|
|
|
*loc = ad = gen_rtx_PLUS (GET_MODE (ad),
|
|
|
|
|
XEXP (XEXP (ad, 0), 0),
|
|
|
|
|
plus_constant (XEXP (XEXP (ad, 0), 1),
|
|
|
|
|
INTVAL (XEXP (ad, 1))));
|
2001-12-17 17:46:11 +01:00
|
|
|
|
find_reloads_address_part (XEXP (ad, 1), &XEXP (ad, 1),
|
|
|
|
|
MODE_BASE_REG_CLASS (mode),
|
1993-03-29 13:27:52 +02:00
|
|
|
|
GET_MODE (ad), opnum, type, ind_levels);
|
1997-01-14 21:38:34 +01:00
|
|
|
|
find_reloads_address_1 (mode, XEXP (ad, 0), 1, &XEXP (ad, 0), opnum,
|
1997-03-15 13:28:39 +01:00
|
|
|
|
type, 0, insn);
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
1999-01-27 02:43:17 +01:00
|
|
|
|
return 0;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
}
|
1999-09-01 16:30:35 +02:00
|
|
|
|
|
1992-02-28 11:23:25 +01:00
|
|
|
|
/* See if address becomes valid when an eliminable register
|
|
|
|
|
in a sum is replaced. */
|
|
|
|
|
|
|
|
|
|
tem = ad;
|
|
|
|
|
if (GET_CODE (ad) == PLUS)
|
|
|
|
|
tem = subst_indexed_address (ad);
|
|
|
|
|
if (tem != ad && strict_memory_address_p (mode, tem))
|
|
|
|
|
{
|
|
|
|
|
/* Ok, we win that way. Replace any additional eliminable
|
|
|
|
|
registers. */
|
|
|
|
|
|
|
|
|
|
subst_reg_equivs_changed = 0;
|
Fix consistency problems with reg_equiv_{mem,address};
Improve reload inheritance;
* reload.c (reload_out_reg): New variable.
(loc_mentioned_in_p, remove_address_replacements): New functions.
(remove_replacements): Deleted.
(push_reload): Set reload_out_reg[i].
When merging, also set reload_{in,out}_reg[i], and remove
duplicate address reloads.
(combine_reloads): Copy reload_out_reg[i].
(find_reloads): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
Include *recog_operand_loc in commutativity operand changes.
Generate optional output reloads.
Delete reference to n_memlocs. Don't set *recog_operand_loc before
processing operands. Call make_memloc in reg_equiv_address code.
Set *recog_operand_loc only after processing operands, and only
if replace is true. Return a value.
When changing address reload types for operands that didn't get
reloaded, use RELOAD_FOR_OPADDR_ADDRESS for
RELOAD_FOR_INPADDR_ADDRESS / RELOAD_FOR_OUTADDR_ADDRESS reloads.
Don't emit USEs for pseudo SUBREGs when not replacing.
(find_reloads_address): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
(find_reloads_toplev): Likewise.
Call make_memloc in reg_equiv_address code.
(debug_reload_to_stream): Add code to output reload_out_reg.
(make_memloc): Delete local variable i, ifdefed out code, and
references to memlocs and n_memlocs.
(memlocs, n_memlocs): Delete.
(push_secondary_reload): Clear reload_out_reg.
(find_reloads_address_1): Provide memrefloc argument to all calls
to find_reloads_address.
In AUTO_INC code, handle non-directly addressable equivalences properly.
* reload.h (reload_out_reg, num_not_at_initial_offset): Declare.
(find_reloads): Add return type.
(remove_address_replacements, deallocate_reload_reg): Declare.
* reload1.c (num_not_at_initial_offset): No longer static.
(delete_address_reloads, delete_address_reloads_1): Likewise.
(deallocate_reload_reg): New function.
(spill_reg_stored_to): New array.
(eliminate_regs): Don't substitute from reg_equiv_memory_loc.
(eliminate_regs_in_insn): Move assignments of previous_offset and
max_offset fields, and recalculation of num_not_at_initial_offset
into new static function:
(update_eliminable_offsets) .
(reload_as_needed): Call update_eliminable_offsetss after calling
find_reloads.
Call forget_old_reloads_1 with contents of reloaded auto_inc
expressions if the actual addressing can't be changed to match the
auto_inc.
(choose_reload_regs): For inheritance, replace
reload_reg_free_before_p test with reload_reg_ions.
(emit_reload_insns): If reload_in is a MEM, set OLD to
reload_in_reg[j].
Don't reload directly from oldequiv; if it's a pseudo with a
stack slot, use reload_in[j].
Check that reload_in_reg[j] is a MEM before replacing reload_in
from reg_reloaded_contents.
Include non-spill registers in reload inheritance processing.
Also try to use reload_out_reg to set spill_reg_store /
reg_last_reload_reg.
In code to set new_spill_reg_store, use single_set to find out if
there is a single set.
Add code that allows to delete optional output reloads.
Add code to allow deletion of output reloads that use no spill reg.
At the end, set reload_override_in to oldequiv.
Also call delete_output_reload if reload_out_reg is equal to old
in oldequiv code.
Add code to call delete_output_reload for stores with no matching load.
Set / use spill_reg_stored_to.
Handle case where secondary output reload uses a temporary, but
actual store isn't found.
When looking for a store of a value not loaded in order to call
delete_output_reload, count_occurences should return 0 for no
loads; but discount inherited input reloadill_reg_stored_to.
Do checks for extra uses of REG. Changed all
callers.
Use delete_address_reloads.
(reload): Take return value of find_reloads into account.
If a no-op set needs more than one reload, delete it.
(reload_reg_free_before_p): RELOAD_FOR_INPUT
can ignore RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS
for the same operand.
(clear_reload_reg_in_use): Check for other reloads that keep a
register in use.
(reload_reg_free_for_value_p): handle RELOAD_FOR_OPERAND_ADDRESS /
RELOAD_FOR_OPADDR_ADDR.
Take into account when an address address reload is only needed
for the address reload we are considering.
(count_occurrences): Use rtx_equal_p for MEMs.
(inc_for_reload): Return instruction that stores into RELOADREG.
New argument two, IN, and rtx. Changed all callers.
(calculate_needs_all_insns, reload_as_needed):
Don't clear after_call for a CLOBBER.
Keep track of how many hard registers need to be copied from
after_call, and don't clear after_call before we have seen
that much copies, or we see a different instruction.
From-SVN: r23143
1998-10-16 21:54:38 +02:00
|
|
|
|
tem = subst_reg_equivs (tem, insn);
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
|
|
|
|
/* Make sure that didn't make the address invalid again. */
|
|
|
|
|
|
|
|
|
|
if (! subst_reg_equivs_changed || strict_memory_address_p (mode, tem))
|
|
|
|
|
{
|
|
|
|
|
*loc = tem;
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* If constants aren't valid addresses, reload the constant address
|
|
|
|
|
into a register. */
|
1992-09-24 01:26:34 +02:00
|
|
|
|
if (CONSTANT_P (ad) && ! strict_memory_address_p (mode, ad))
|
1992-02-28 11:23:25 +01:00
|
|
|
|
{
|
2001-07-23 15:21:39 +02:00
|
|
|
|
/* If AD is an address in the constant pool, the MEM rtx may be shared.
|
1992-02-28 11:23:25 +01:00
|
|
|
|
Unshare it so we can safely alter it. */
|
|
|
|
|
if (memrefloc && GET_CODE (ad) == SYMBOL_REF
|
|
|
|
|
&& CONSTANT_POOL_ADDRESS_P (ad))
|
|
|
|
|
{
|
|
|
|
|
*memrefloc = copy_rtx (*memrefloc);
|
|
|
|
|
loc = &XEXP (*memrefloc, 0);
|
1999-01-27 02:43:17 +01:00
|
|
|
|
if (removed_and)
|
|
|
|
|
loc = &XEXP (*loc, 0);
|
1992-02-28 11:23:25 +01:00
|
|
|
|
}
|
|
|
|
|
|
2001-12-17 17:46:11 +01:00
|
|
|
|
find_reloads_address_part (ad, loc, MODE_BASE_REG_CLASS (mode),
|
|
|
|
|
Pmode, opnum, type, ind_levels);
|
1999-01-27 02:43:17 +01:00
|
|
|
|
return ! removed_and;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
}
|
|
|
|
|
|
1997-03-15 13:28:39 +01:00
|
|
|
|
return find_reloads_address_1 (mode, ad, 0, loc, opnum, type, ind_levels,
|
|
|
|
|
insn);
|
1992-02-28 11:23:25 +01:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Find all pseudo regs appearing in AD
|
|
|
|
|
that are eliminable in favor of equivalent values
|
Fix consistency problems with reg_equiv_{mem,address};
Improve reload inheritance;
* reload.c (reload_out_reg): New variable.
(loc_mentioned_in_p, remove_address_replacements): New functions.
(remove_replacements): Deleted.
(push_reload): Set reload_out_reg[i].
When merging, also set reload_{in,out}_reg[i], and remove
duplicate address reloads.
(combine_reloads): Copy reload_out_reg[i].
(find_reloads): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
Include *recog_operand_loc in commutativity operand changes.
Generate optional output reloads.
Delete reference to n_memlocs. Don't set *recog_operand_loc before
processing operands. Call make_memloc in reg_equiv_address code.
Set *recog_operand_loc only after processing operands, and only
if replace is true. Return a value.
When changing address reload types for operands that didn't get
reloaded, use RELOAD_FOR_OPADDR_ADDRESS for
RELOAD_FOR_INPADDR_ADDRESS / RELOAD_FOR_OUTADDR_ADDRESS reloads.
Don't emit USEs for pseudo SUBREGs when not replacing.
(find_reloads_address): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
(find_reloads_toplev): Likewise.
Call make_memloc in reg_equiv_address code.
(debug_reload_to_stream): Add code to output reload_out_reg.
(make_memloc): Delete local variable i, ifdefed out code, and
references to memlocs and n_memlocs.
(memlocs, n_memlocs): Delete.
(push_secondary_reload): Clear reload_out_reg.
(find_reloads_address_1): Provide memrefloc argument to all calls
to find_reloads_address.
In AUTO_INC code, handle non-directly addressable equivalences properly.
* reload.h (reload_out_reg, num_not_at_initial_offset): Declare.
(find_reloads): Add return type.
(remove_address_replacements, deallocate_reload_reg): Declare.
* reload1.c (num_not_at_initial_offset): No longer static.
(delete_address_reloads, delete_address_reloads_1): Likewise.
(deallocate_reload_reg): New function.
(spill_reg_stored_to): New array.
(eliminate_regs): Don't substitute from reg_equiv_memory_loc.
(eliminate_regs_in_insn): Move assignments of previous_offset and
max_offset fields, and recalculation of num_not_at_initial_offset
into new static function:
(update_eliminable_offsets) .
(reload_as_needed): Call update_eliminable_offsetss after calling
find_reloads.
Call forget_old_reloads_1 with contents of reloaded auto_inc
expressions if the actual addressing can't be changed to match the
auto_inc.
(choose_reload_regs): For inheritance, replace
reload_reg_free_before_p test with reload_reg_ions.
(emit_reload_insns): If reload_in is a MEM, set OLD to
reload_in_reg[j].
Don't reload directly from oldequiv; if it's a pseudo with a
stack slot, use reload_in[j].
Check that reload_in_reg[j] is a MEM before replacing reload_in
from reg_reloaded_contents.
Include non-spill registers in reload inheritance processing.
Also try to use reload_out_reg to set spill_reg_store /
reg_last_reload_reg.
In code to set new_spill_reg_store, use single_set to find out if
there is a single set.
Add code that allows to delete optional output reloads.
Add code to allow deletion of output reloads that use no spill reg.
At the end, set reload_override_in to oldequiv.
Also call delete_output_reload if reload_out_reg is equal to old
in oldequiv code.
Add code to call delete_output_reload for stores with no matching load.
Set / use spill_reg_stored_to.
Handle case where secondary output reload uses a temporary, but
actual store isn't found.
When looking for a store of a value not loaded in order to call
delete_output_reload, count_occurences should return 0 for no
loads; but discount inherited input reloadill_reg_stored_to.
Do checks for extra uses of REG. Changed all
callers.
Use delete_address_reloads.
(reload): Take return value of find_reloads into account.
If a no-op set needs more than one reload, delete it.
(reload_reg_free_before_p): RELOAD_FOR_INPUT
can ignore RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS
for the same operand.
(clear_reload_reg_in_use): Check for other reloads that keep a
register in use.
(reload_reg_free_for_value_p): handle RELOAD_FOR_OPERAND_ADDRESS /
RELOAD_FOR_OPADDR_ADDR.
Take into account when an address address reload is only needed
for the address reload we are considering.
(count_occurrences): Use rtx_equal_p for MEMs.
(inc_for_reload): Return instruction that stores into RELOADREG.
New argument two, IN, and rtx. Changed all callers.
(calculate_needs_all_insns, reload_as_needed):
Don't clear after_call for a CLOBBER.
Keep track of how many hard registers need to be copied from
after_call, and don't clear after_call before we have seen
that much copies, or we see a different instruction.
From-SVN: r23143
1998-10-16 21:54:38 +02:00
|
|
|
|
and do not have hard regs; replace them by their equivalents.
|
|
|
|
|
INSN, if nonzero, is the insn in which we do the reload. We put USEs in
|
|
|
|
|
front of it for pseudos that we have to replace with stack slots. */
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
|
|
|
|
static rtx
|
Fix consistency problems with reg_equiv_{mem,address};
Improve reload inheritance;
* reload.c (reload_out_reg): New variable.
(loc_mentioned_in_p, remove_address_replacements): New functions.
(remove_replacements): Deleted.
(push_reload): Set reload_out_reg[i].
When merging, also set reload_{in,out}_reg[i], and remove
duplicate address reloads.
(combine_reloads): Copy reload_out_reg[i].
(find_reloads): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
Include *recog_operand_loc in commutativity operand changes.
Generate optional output reloads.
Delete reference to n_memlocs. Don't set *recog_operand_loc before
processing operands. Call make_memloc in reg_equiv_address code.
Set *recog_operand_loc only after processing operands, and only
if replace is true. Return a value.
When changing address reload types for operands that didn't get
reloaded, use RELOAD_FOR_OPADDR_ADDRESS for
RELOAD_FOR_INPADDR_ADDRESS / RELOAD_FOR_OUTADDR_ADDRESS reloads.
Don't emit USEs for pseudo SUBREGs when not replacing.
(find_reloads_address): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
(find_reloads_toplev): Likewise.
Call make_memloc in reg_equiv_address code.
(debug_reload_to_stream): Add code to output reload_out_reg.
(make_memloc): Delete local variable i, ifdefed out code, and
references to memlocs and n_memlocs.
(memlocs, n_memlocs): Delete.
(push_secondary_reload): Clear reload_out_reg.
(find_reloads_address_1): Provide memrefloc argument to all calls
to find_reloads_address.
In AUTO_INC code, handle non-directly addressable equivalences properly.
* reload.h (reload_out_reg, num_not_at_initial_offset): Declare.
(find_reloads): Add return type.
(remove_address_replacements, deallocate_reload_reg): Declare.
* reload1.c (num_not_at_initial_offset): No longer static.
(delete_address_reloads, delete_address_reloads_1): Likewise.
(deallocate_reload_reg): New function.
(spill_reg_stored_to): New array.
(eliminate_regs): Don't substitute from reg_equiv_memory_loc.
(eliminate_regs_in_insn): Move assignments of previous_offset and
max_offset fields, and recalculation of num_not_at_initial_offset
into new static function:
(update_eliminable_offsets) .
(reload_as_needed): Call update_eliminable_offsetss after calling
find_reloads.
Call forget_old_reloads_1 with contents of reloaded auto_inc
expressions if the actual addressing can't be changed to match the
auto_inc.
(choose_reload_regs): For inheritance, replace
reload_reg_free_before_p test with reload_reg_ions.
(emit_reload_insns): If reload_in is a MEM, set OLD to
reload_in_reg[j].
Don't reload directly from oldequiv; if it's a pseudo with a
stack slot, use reload_in[j].
Check that reload_in_reg[j] is a MEM before replacing reload_in
from reg_reloaded_contents.
Include non-spill registers in reload inheritance processing.
Also try to use reload_out_reg to set spill_reg_store /
reg_last_reload_reg.
In code to set new_spill_reg_store, use single_set to find out if
there is a single set.
Add code that allows to delete optional output reloads.
Add code to allow deletion of output reloads that use no spill reg.
At the end, set reload_override_in to oldequiv.
Also call delete_output_reload if reload_out_reg is equal to old
in oldequiv code.
Add code to call delete_output_reload for stores with no matching load.
Set / use spill_reg_stored_to.
Handle case where secondary output reload uses a temporary, but
actual store isn't found.
When looking for a store of a value not loaded in order to call
delete_output_reload, count_occurences should return 0 for no
loads; but discount inherited input reloadill_reg_stored_to.
Do checks for extra uses of REG. Changed all
callers.
Use delete_address_reloads.
(reload): Take return value of find_reloads into account.
If a no-op set needs more than one reload, delete it.
(reload_reg_free_before_p): RELOAD_FOR_INPUT
can ignore RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS
for the same operand.
(clear_reload_reg_in_use): Check for other reloads that keep a
register in use.
(reload_reg_free_for_value_p): handle RELOAD_FOR_OPERAND_ADDRESS /
RELOAD_FOR_OPADDR_ADDR.
Take into account when an address address reload is only needed
for the address reload we are considering.
(count_occurrences): Use rtx_equal_p for MEMs.
(inc_for_reload): Return instruction that stores into RELOADREG.
New argument two, IN, and rtx. Changed all callers.
(calculate_needs_all_insns, reload_as_needed):
Don't clear after_call for a CLOBBER.
Keep track of how many hard registers need to be copied from
after_call, and don't clear after_call before we have seen
that much copies, or we see a different instruction.
From-SVN: r23143
1998-10-16 21:54:38 +02:00
|
|
|
|
subst_reg_equivs (ad, insn)
|
1992-02-28 11:23:25 +01:00
|
|
|
|
rtx ad;
|
Fix consistency problems with reg_equiv_{mem,address};
Improve reload inheritance;
* reload.c (reload_out_reg): New variable.
(loc_mentioned_in_p, remove_address_replacements): New functions.
(remove_replacements): Deleted.
(push_reload): Set reload_out_reg[i].
When merging, also set reload_{in,out}_reg[i], and remove
duplicate address reloads.
(combine_reloads): Copy reload_out_reg[i].
(find_reloads): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
Include *recog_operand_loc in commutativity operand changes.
Generate optional output reloads.
Delete reference to n_memlocs. Don't set *recog_operand_loc before
processing operands. Call make_memloc in reg_equiv_address code.
Set *recog_operand_loc only after processing operands, and only
if replace is true. Return a value.
When changing address reload types for operands that didn't get
reloaded, use RELOAD_FOR_OPADDR_ADDRESS for
RELOAD_FOR_INPADDR_ADDRESS / RELOAD_FOR_OUTADDR_ADDRESS reloads.
Don't emit USEs for pseudo SUBREGs when not replacing.
(find_reloads_address): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
(find_reloads_toplev): Likewise.
Call make_memloc in reg_equiv_address code.
(debug_reload_to_stream): Add code to output reload_out_reg.
(make_memloc): Delete local variable i, ifdefed out code, and
references to memlocs and n_memlocs.
(memlocs, n_memlocs): Delete.
(push_secondary_reload): Clear reload_out_reg.
(find_reloads_address_1): Provide memrefloc argument to all calls
to find_reloads_address.
In AUTO_INC code, handle non-directly addressable equivalences properly.
* reload.h (reload_out_reg, num_not_at_initial_offset): Declare.
(find_reloads): Add return type.
(remove_address_replacements, deallocate_reload_reg): Declare.
* reload1.c (num_not_at_initial_offset): No longer static.
(delete_address_reloads, delete_address_reloads_1): Likewise.
(deallocate_reload_reg): New function.
(spill_reg_stored_to): New array.
(eliminate_regs): Don't substitute from reg_equiv_memory_loc.
(eliminate_regs_in_insn): Move assignments of previous_offset and
max_offset fields, and recalculation of num_not_at_initial_offset
into new static function:
(update_eliminable_offsets) .
(reload_as_needed): Call update_eliminable_offsetss after calling
find_reloads.
Call forget_old_reloads_1 with contents of reloaded auto_inc
expressions if the actual addressing can't be changed to match the
auto_inc.
(choose_reload_regs): For inheritance, replace
reload_reg_free_before_p test with reload_reg_ions.
(emit_reload_insns): If reload_in is a MEM, set OLD to
reload_in_reg[j].
Don't reload directly from oldequiv; if it's a pseudo with a
stack slot, use reload_in[j].
Check that reload_in_reg[j] is a MEM before replacing reload_in
from reg_reloaded_contents.
Include non-spill registers in reload inheritance processing.
Also try to use reload_out_reg to set spill_reg_store /
reg_last_reload_reg.
In code to set new_spill_reg_store, use single_set to find out if
there is a single set.
Add code that allows to delete optional output reloads.
Add code to allow deletion of output reloads that use no spill reg.
At the end, set reload_override_in to oldequiv.
Also call delete_output_reload if reload_out_reg is equal to old
in oldequiv code.
Add code to call delete_output_reload for stores with no matching load.
Set / use spill_reg_stored_to.
Handle case where secondary output reload uses a temporary, but
actual store isn't found.
When looking for a store of a value not loaded in order to call
delete_output_reload, count_occurences should return 0 for no
loads; but discount inherited input reloadill_reg_stored_to.
Do checks for extra uses of REG. Changed all
callers.
Use delete_address_reloads.
(reload): Take return value of find_reloads into account.
If a no-op set needs more than one reload, delete it.
(reload_reg_free_before_p): RELOAD_FOR_INPUT
can ignore RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS
for the same operand.
(clear_reload_reg_in_use): Check for other reloads that keep a
register in use.
(reload_reg_free_for_value_p): handle RELOAD_FOR_OPERAND_ADDRESS /
RELOAD_FOR_OPADDR_ADDR.
Take into account when an address address reload is only needed
for the address reload we are considering.
(count_occurrences): Use rtx_equal_p for MEMs.
(inc_for_reload): Return instruction that stores into RELOADREG.
New argument two, IN, and rtx. Changed all callers.
(calculate_needs_all_insns, reload_as_needed):
Don't clear after_call for a CLOBBER.
Keep track of how many hard registers need to be copied from
after_call, and don't clear after_call before we have seen
that much copies, or we see a different instruction.
From-SVN: r23143
1998-10-16 21:54:38 +02:00
|
|
|
|
rtx insn;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
{
|
2001-10-11 05:16:15 +02:00
|
|
|
|
RTX_CODE code = GET_CODE (ad);
|
|
|
|
|
int i;
|
|
|
|
|
const char *fmt;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
|
|
|
|
switch (code)
|
|
|
|
|
{
|
|
|
|
|
case HIGH:
|
|
|
|
|
case CONST_INT:
|
|
|
|
|
case CONST:
|
|
|
|
|
case CONST_DOUBLE:
|
2002-02-19 03:53:41 +01:00
|
|
|
|
case CONST_VECTOR:
|
1992-02-28 11:23:25 +01:00
|
|
|
|
case SYMBOL_REF:
|
|
|
|
|
case LABEL_REF:
|
|
|
|
|
case PC:
|
|
|
|
|
case CC0:
|
|
|
|
|
return ad;
|
|
|
|
|
|
|
|
|
|
case REG:
|
|
|
|
|
{
|
2001-10-11 05:16:15 +02:00
|
|
|
|
int regno = REGNO (ad);
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
|
|
|
|
if (reg_equiv_constant[regno] != 0)
|
|
|
|
|
{
|
|
|
|
|
subst_reg_equivs_changed = 1;
|
|
|
|
|
return reg_equiv_constant[regno];
|
|
|
|
|
}
|
Fix consistency problems with reg_equiv_{mem,address};
Improve reload inheritance;
* reload.c (reload_out_reg): New variable.
(loc_mentioned_in_p, remove_address_replacements): New functions.
(remove_replacements): Deleted.
(push_reload): Set reload_out_reg[i].
When merging, also set reload_{in,out}_reg[i], and remove
duplicate address reloads.
(combine_reloads): Copy reload_out_reg[i].
(find_reloads): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
Include *recog_operand_loc in commutativity operand changes.
Generate optional output reloads.
Delete reference to n_memlocs. Don't set *recog_operand_loc before
processing operands. Call make_memloc in reg_equiv_address code.
Set *recog_operand_loc only after processing operands, and only
if replace is true. Return a value.
When changing address reload types for operands that didn't get
reloaded, use RELOAD_FOR_OPADDR_ADDRESS for
RELOAD_FOR_INPADDR_ADDRESS / RELOAD_FOR_OUTADDR_ADDRESS reloads.
Don't emit USEs for pseudo SUBREGs when not replacing.
(find_reloads_address): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
(find_reloads_toplev): Likewise.
Call make_memloc in reg_equiv_address code.
(debug_reload_to_stream): Add code to output reload_out_reg.
(make_memloc): Delete local variable i, ifdefed out code, and
references to memlocs and n_memlocs.
(memlocs, n_memlocs): Delete.
(push_secondary_reload): Clear reload_out_reg.
(find_reloads_address_1): Provide memrefloc argument to all calls
to find_reloads_address.
In AUTO_INC code, handle non-directly addressable equivalences properly.
* reload.h (reload_out_reg, num_not_at_initial_offset): Declare.
(find_reloads): Add return type.
(remove_address_replacements, deallocate_reload_reg): Declare.
* reload1.c (num_not_at_initial_offset): No longer static.
(delete_address_reloads, delete_address_reloads_1): Likewise.
(deallocate_reload_reg): New function.
(spill_reg_stored_to): New array.
(eliminate_regs): Don't substitute from reg_equiv_memory_loc.
(eliminate_regs_in_insn): Move assignments of previous_offset and
max_offset fields, and recalculation of num_not_at_initial_offset
into new static function:
(update_eliminable_offsets) .
(reload_as_needed): Call update_eliminable_offsetss after calling
find_reloads.
Call forget_old_reloads_1 with contents of reloaded auto_inc
expressions if the actual addressing can't be changed to match the
auto_inc.
(choose_reload_regs): For inheritance, replace
reload_reg_free_before_p test with reload_reg_ions.
(emit_reload_insns): If reload_in is a MEM, set OLD to
reload_in_reg[j].
Don't reload directly from oldequiv; if it's a pseudo with a
stack slot, use reload_in[j].
Check that reload_in_reg[j] is a MEM before replacing reload_in
from reg_reloaded_contents.
Include non-spill registers in reload inheritance processing.
Also try to use reload_out_reg to set spill_reg_store /
reg_last_reload_reg.
In code to set new_spill_reg_store, use single_set to find out if
there is a single set.
Add code that allows to delete optional output reloads.
Add code to allow deletion of output reloads that use no spill reg.
At the end, set reload_override_in to oldequiv.
Also call delete_output_reload if reload_out_reg is equal to old
in oldequiv code.
Add code to call delete_output_reload for stores with no matching load.
Set / use spill_reg_stored_to.
Handle case where secondary output reload uses a temporary, but
actual store isn't found.
When looking for a store of a value not loaded in order to call
delete_output_reload, count_occurences should return 0 for no
loads; but discount inherited input reloadill_reg_stored_to.
Do checks for extra uses of REG. Changed all
callers.
Use delete_address_reloads.
(reload): Take return value of find_reloads into account.
If a no-op set needs more than one reload, delete it.
(reload_reg_free_before_p): RELOAD_FOR_INPUT
can ignore RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS
for the same operand.
(clear_reload_reg_in_use): Check for other reloads that keep a
register in use.
(reload_reg_free_for_value_p): handle RELOAD_FOR_OPERAND_ADDRESS /
RELOAD_FOR_OPADDR_ADDR.
Take into account when an address address reload is only needed
for the address reload we are considering.
(count_occurrences): Use rtx_equal_p for MEMs.
(inc_for_reload): Return instruction that stores into RELOADREG.
New argument two, IN, and rtx. Changed all callers.
(calculate_needs_all_insns, reload_as_needed):
Don't clear after_call for a CLOBBER.
Keep track of how many hard registers need to be copied from
after_call, and don't clear after_call before we have seen
that much copies, or we see a different instruction.
From-SVN: r23143
1998-10-16 21:54:38 +02:00
|
|
|
|
if (reg_equiv_memory_loc[regno] && num_not_at_initial_offset)
|
|
|
|
|
{
|
|
|
|
|
rtx mem = make_memloc (ad, regno);
|
|
|
|
|
if (! rtx_equal_p (mem, reg_equiv_mem[regno]))
|
|
|
|
|
{
|
|
|
|
|
subst_reg_equivs_changed = 1;
|
2001-09-29 23:52:12 +02:00
|
|
|
|
/* We mark the USE with QImode so that we recognize it
|
|
|
|
|
as one that can be safely deleted at the end of
|
|
|
|
|
reload. */
|
|
|
|
|
PUT_MODE (emit_insn_before (gen_rtx_USE (VOIDmode, ad), insn),
|
|
|
|
|
QImode);
|
Fix consistency problems with reg_equiv_{mem,address};
Improve reload inheritance;
* reload.c (reload_out_reg): New variable.
(loc_mentioned_in_p, remove_address_replacements): New functions.
(remove_replacements): Deleted.
(push_reload): Set reload_out_reg[i].
When merging, also set reload_{in,out}_reg[i], and remove
duplicate address reloads.
(combine_reloads): Copy reload_out_reg[i].
(find_reloads): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
Include *recog_operand_loc in commutativity operand changes.
Generate optional output reloads.
Delete reference to n_memlocs. Don't set *recog_operand_loc before
processing operands. Call make_memloc in reg_equiv_address code.
Set *recog_operand_loc only after processing operands, and only
if replace is true. Return a value.
When changing address reload types for operands that didn't get
reloaded, use RELOAD_FOR_OPADDR_ADDRESS for
RELOAD_FOR_INPADDR_ADDRESS / RELOAD_FOR_OUTADDR_ADDRESS reloads.
Don't emit USEs for pseudo SUBREGs when not replacing.
(find_reloads_address): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
(find_reloads_toplev): Likewise.
Call make_memloc in reg_equiv_address code.
(debug_reload_to_stream): Add code to output reload_out_reg.
(make_memloc): Delete local variable i, ifdefed out code, and
references to memlocs and n_memlocs.
(memlocs, n_memlocs): Delete.
(push_secondary_reload): Clear reload_out_reg.
(find_reloads_address_1): Provide memrefloc argument to all calls
to find_reloads_address.
In AUTO_INC code, handle non-directly addressable equivalences properly.
* reload.h (reload_out_reg, num_not_at_initial_offset): Declare.
(find_reloads): Add return type.
(remove_address_replacements, deallocate_reload_reg): Declare.
* reload1.c (num_not_at_initial_offset): No longer static.
(delete_address_reloads, delete_address_reloads_1): Likewise.
(deallocate_reload_reg): New function.
(spill_reg_stored_to): New array.
(eliminate_regs): Don't substitute from reg_equiv_memory_loc.
(eliminate_regs_in_insn): Move assignments of previous_offset and
max_offset fields, and recalculation of num_not_at_initial_offset
into new static function:
(update_eliminable_offsets) .
(reload_as_needed): Call update_eliminable_offsetss after calling
find_reloads.
Call forget_old_reloads_1 with contents of reloaded auto_inc
expressions if the actual addressing can't be changed to match the
auto_inc.
(choose_reload_regs): For inheritance, replace
reload_reg_free_before_p test with reload_reg_ions.
(emit_reload_insns): If reload_in is a MEM, set OLD to
reload_in_reg[j].
Don't reload directly from oldequiv; if it's a pseudo with a
stack slot, use reload_in[j].
Check that reload_in_reg[j] is a MEM before replacing reload_in
from reg_reloaded_contents.
Include non-spill registers in reload inheritance processing.
Also try to use reload_out_reg to set spill_reg_store /
reg_last_reload_reg.
In code to set new_spill_reg_store, use single_set to find out if
there is a single set.
Add code that allows to delete optional output reloads.
Add code to allow deletion of output reloads that use no spill reg.
At the end, set reload_override_in to oldequiv.
Also call delete_output_reload if reload_out_reg is equal to old
in oldequiv code.
Add code to call delete_output_reload for stores with no matching load.
Set / use spill_reg_stored_to.
Handle case where secondary output reload uses a temporary, but
actual store isn't found.
When looking for a store of a value not loaded in order to call
delete_output_reload, count_occurences should return 0 for no
loads; but discount inherited input reloadill_reg_stored_to.
Do checks for extra uses of REG. Changed all
callers.
Use delete_address_reloads.
(reload): Take return value of find_reloads into account.
If a no-op set needs more than one reload, delete it.
(reload_reg_free_before_p): RELOAD_FOR_INPUT
can ignore RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS
for the same operand.
(clear_reload_reg_in_use): Check for other reloads that keep a
register in use.
(reload_reg_free_for_value_p): handle RELOAD_FOR_OPERAND_ADDRESS /
RELOAD_FOR_OPADDR_ADDR.
Take into account when an address address reload is only needed
for the address reload we are considering.
(count_occurrences): Use rtx_equal_p for MEMs.
(inc_for_reload): Return instruction that stores into RELOADREG.
New argument two, IN, and rtx. Changed all callers.
(calculate_needs_all_insns, reload_as_needed):
Don't clear after_call for a CLOBBER.
Keep track of how many hard registers need to be copied from
after_call, and don't clear after_call before we have seen
that much copies, or we see a different instruction.
From-SVN: r23143
1998-10-16 21:54:38 +02:00
|
|
|
|
return mem;
|
|
|
|
|
}
|
|
|
|
|
}
|
1992-02-28 11:23:25 +01:00
|
|
|
|
}
|
|
|
|
|
return ad;
|
|
|
|
|
|
|
|
|
|
case PLUS:
|
|
|
|
|
/* Quickly dispose of a common case. */
|
|
|
|
|
if (XEXP (ad, 0) == frame_pointer_rtx
|
|
|
|
|
&& GET_CODE (XEXP (ad, 1)) == CONST_INT)
|
|
|
|
|
return ad;
|
1997-11-02 22:19:36 +01:00
|
|
|
|
break;
|
1999-09-01 16:30:35 +02:00
|
|
|
|
|
1997-11-02 22:19:36 +01:00
|
|
|
|
default:
|
|
|
|
|
break;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
fmt = GET_RTX_FORMAT (code);
|
|
|
|
|
for (i = GET_RTX_LENGTH (code) - 1; i >= 0; i--)
|
|
|
|
|
if (fmt[i] == 'e')
|
Fix consistency problems with reg_equiv_{mem,address};
Improve reload inheritance;
* reload.c (reload_out_reg): New variable.
(loc_mentioned_in_p, remove_address_replacements): New functions.
(remove_replacements): Deleted.
(push_reload): Set reload_out_reg[i].
When merging, also set reload_{in,out}_reg[i], and remove
duplicate address reloads.
(combine_reloads): Copy reload_out_reg[i].
(find_reloads): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
Include *recog_operand_loc in commutativity operand changes.
Generate optional output reloads.
Delete reference to n_memlocs. Don't set *recog_operand_loc before
processing operands. Call make_memloc in reg_equiv_address code.
Set *recog_operand_loc only after processing operands, and only
if replace is true. Return a value.
When changing address reload types for operands that didn't get
reloaded, use RELOAD_FOR_OPADDR_ADDRESS for
RELOAD_FOR_INPADDR_ADDRESS / RELOAD_FOR_OUTADDR_ADDRESS reloads.
Don't emit USEs for pseudo SUBREGs when not replacing.
(find_reloads_address): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
(find_reloads_toplev): Likewise.
Call make_memloc in reg_equiv_address code.
(debug_reload_to_stream): Add code to output reload_out_reg.
(make_memloc): Delete local variable i, ifdefed out code, and
references to memlocs and n_memlocs.
(memlocs, n_memlocs): Delete.
(push_secondary_reload): Clear reload_out_reg.
(find_reloads_address_1): Provide memrefloc argument to all calls
to find_reloads_address.
In AUTO_INC code, handle non-directly addressable equivalences properly.
* reload.h (reload_out_reg, num_not_at_initial_offset): Declare.
(find_reloads): Add return type.
(remove_address_replacements, deallocate_reload_reg): Declare.
* reload1.c (num_not_at_initial_offset): No longer static.
(delete_address_reloads, delete_address_reloads_1): Likewise.
(deallocate_reload_reg): New function.
(spill_reg_stored_to): New array.
(eliminate_regs): Don't substitute from reg_equiv_memory_loc.
(eliminate_regs_in_insn): Move assignments of previous_offset and
max_offset fields, and recalculation of num_not_at_initial_offset
into new static function:
(update_eliminable_offsets) .
(reload_as_needed): Call update_eliminable_offsetss after calling
find_reloads.
Call forget_old_reloads_1 with contents of reloaded auto_inc
expressions if the actual addressing can't be changed to match the
auto_inc.
(choose_reload_regs): For inheritance, replace
reload_reg_free_before_p test with reload_reg_ions.
(emit_reload_insns): If reload_in is a MEM, set OLD to
reload_in_reg[j].
Don't reload directly from oldequiv; if it's a pseudo with a
stack slot, use reload_in[j].
Check that reload_in_reg[j] is a MEM before replacing reload_in
from reg_reloaded_contents.
Include non-spill registers in reload inheritance processing.
Also try to use reload_out_reg to set spill_reg_store /
reg_last_reload_reg.
In code to set new_spill_reg_store, use single_set to find out if
there is a single set.
Add code that allows to delete optional output reloads.
Add code to allow deletion of output reloads that use no spill reg.
At the end, set reload_override_in to oldequiv.
Also call delete_output_reload if reload_out_reg is equal to old
in oldequiv code.
Add code to call delete_output_reload for stores with no matching load.
Set / use spill_reg_stored_to.
Handle case where secondary output reload uses a temporary, but
actual store isn't found.
When looking for a store of a value not loaded in order to call
delete_output_reload, count_occurences should return 0 for no
loads; but discount inherited input reloadill_reg_stored_to.
Do checks for extra uses of REG. Changed all
callers.
Use delete_address_reloads.
(reload): Take return value of find_reloads into account.
If a no-op set needs more than one reload, delete it.
(reload_reg_free_before_p): RELOAD_FOR_INPUT
can ignore RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS
for the same operand.
(clear_reload_reg_in_use): Check for other reloads that keep a
register in use.
(reload_reg_free_for_value_p): handle RELOAD_FOR_OPERAND_ADDRESS /
RELOAD_FOR_OPADDR_ADDR.
Take into account when an address address reload is only needed
for the address reload we are considering.
(count_occurrences): Use rtx_equal_p for MEMs.
(inc_for_reload): Return instruction that stores into RELOADREG.
New argument two, IN, and rtx. Changed all callers.
(calculate_needs_all_insns, reload_as_needed):
Don't clear after_call for a CLOBBER.
Keep track of how many hard registers need to be copied from
after_call, and don't clear after_call before we have seen
that much copies, or we see a different instruction.
From-SVN: r23143
1998-10-16 21:54:38 +02:00
|
|
|
|
XEXP (ad, i) = subst_reg_equivs (XEXP (ad, i), insn);
|
1992-02-28 11:23:25 +01:00
|
|
|
|
return ad;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Compute the sum of X and Y, making canonicalizations assumed in an
|
|
|
|
|
address, namely: sum constant integers, surround the sum of two
|
|
|
|
|
constants with a CONST, put the constant as the second operand, and
|
|
|
|
|
group the constant on the outermost sum.
|
|
|
|
|
|
|
|
|
|
This routine assumes both inputs are already in canonical form. */
|
|
|
|
|
|
|
|
|
|
rtx
|
|
|
|
|
form_sum (x, y)
|
|
|
|
|
rtx x, y;
|
|
|
|
|
{
|
|
|
|
|
rtx tem;
|
1993-03-30 22:34:11 +02:00
|
|
|
|
enum machine_mode mode = GET_MODE (x);
|
|
|
|
|
|
|
|
|
|
if (mode == VOIDmode)
|
|
|
|
|
mode = GET_MODE (y);
|
|
|
|
|
|
|
|
|
|
if (mode == VOIDmode)
|
|
|
|
|
mode = Pmode;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
|
|
|
|
if (GET_CODE (x) == CONST_INT)
|
|
|
|
|
return plus_constant (y, INTVAL (x));
|
|
|
|
|
else if (GET_CODE (y) == CONST_INT)
|
|
|
|
|
return plus_constant (x, INTVAL (y));
|
|
|
|
|
else if (CONSTANT_P (x))
|
|
|
|
|
tem = x, x = y, y = tem;
|
|
|
|
|
|
|
|
|
|
if (GET_CODE (x) == PLUS && CONSTANT_P (XEXP (x, 1)))
|
|
|
|
|
return form_sum (XEXP (x, 0), form_sum (XEXP (x, 1), y));
|
|
|
|
|
|
|
|
|
|
/* Note that if the operands of Y are specified in the opposite
|
|
|
|
|
order in the recursive calls below, infinite recursion will occur. */
|
1993-10-01 23:27:08 +01:00
|
|
|
|
if (GET_CODE (y) == PLUS && CONSTANT_P (XEXP (y, 1)))
|
1992-02-28 11:23:25 +01:00
|
|
|
|
return form_sum (form_sum (x, XEXP (y, 0)), XEXP (y, 1));
|
|
|
|
|
|
|
|
|
|
/* If both constant, encapsulate sum. Otherwise, just form sum. A
|
|
|
|
|
constant will have been placed second. */
|
|
|
|
|
if (CONSTANT_P (x) && CONSTANT_P (y))
|
|
|
|
|
{
|
|
|
|
|
if (GET_CODE (x) == CONST)
|
|
|
|
|
x = XEXP (x, 0);
|
|
|
|
|
if (GET_CODE (y) == CONST)
|
|
|
|
|
y = XEXP (y, 0);
|
|
|
|
|
|
alias.c: Change all uses of gen_rtx(FOO...) to gen_rtx_FOO...
* alias.c: Change all uses of gen_rtx(FOO...) to gen_rtx_FOO;
change gen_rtx(expr...) to gen_rtx_fmt_foo(expr...).
* caller-save.c, calls.c, combine.c, cse.c: Likewise.
* dwarf2out.c, except.c, explow.c, expmed.c, expr.c: Likewise.
* final.c, flow.c, function.c, genpeep.c, haifa-sched.c: Likewise.
* halfpic.c, integrate.c, jump.c, local-alloc.c, loop.c: Likewise.
* profile.c, recog.c, reg-stack.c, regclass.c, regmove.c: Likewise.
* reload.c, reload1.c, reorg.c, sched.c, stmt.c, stupid.c: Likewise.
* unroll.c, varasm.c: Likewise.
* config/alpha/alpha.c, config/alpha/alpha.md: Likewise.
From-SVN: r17357
1998-01-15 00:10:50 +01:00
|
|
|
|
return gen_rtx_CONST (VOIDmode, gen_rtx_PLUS (mode, x, y));
|
1992-02-28 11:23:25 +01:00
|
|
|
|
}
|
|
|
|
|
|
alias.c: Change all uses of gen_rtx(FOO...) to gen_rtx_FOO...
* alias.c: Change all uses of gen_rtx(FOO...) to gen_rtx_FOO;
change gen_rtx(expr...) to gen_rtx_fmt_foo(expr...).
* caller-save.c, calls.c, combine.c, cse.c: Likewise.
* dwarf2out.c, except.c, explow.c, expmed.c, expr.c: Likewise.
* final.c, flow.c, function.c, genpeep.c, haifa-sched.c: Likewise.
* halfpic.c, integrate.c, jump.c, local-alloc.c, loop.c: Likewise.
* profile.c, recog.c, reg-stack.c, regclass.c, regmove.c: Likewise.
* reload.c, reload1.c, reorg.c, sched.c, stmt.c, stupid.c: Likewise.
* unroll.c, varasm.c: Likewise.
* config/alpha/alpha.c, config/alpha/alpha.md: Likewise.
From-SVN: r17357
1998-01-15 00:10:50 +01:00
|
|
|
|
return gen_rtx_PLUS (mode, x, y);
|
1992-02-28 11:23:25 +01:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* If ADDR is a sum containing a pseudo register that should be
|
|
|
|
|
replaced with a constant (from reg_equiv_constant),
|
|
|
|
|
return the result of doing so, and also apply the associative
|
|
|
|
|
law so that the result is more likely to be a valid address.
|
|
|
|
|
(But it is not guaranteed to be one.)
|
|
|
|
|
|
|
|
|
|
Note that at most one register is replaced, even if more are
|
|
|
|
|
replaceable. Also, we try to put the result into a canonical form
|
|
|
|
|
so it is more likely to be a valid address.
|
|
|
|
|
|
|
|
|
|
In all other cases, return ADDR. */
|
|
|
|
|
|
|
|
|
|
static rtx
|
|
|
|
|
subst_indexed_address (addr)
|
|
|
|
|
rtx addr;
|
|
|
|
|
{
|
|
|
|
|
rtx op0 = 0, op1 = 0, op2 = 0;
|
|
|
|
|
rtx tem;
|
|
|
|
|
int regno;
|
|
|
|
|
|
|
|
|
|
if (GET_CODE (addr) == PLUS)
|
|
|
|
|
{
|
|
|
|
|
/* Try to find a register to replace. */
|
|
|
|
|
op0 = XEXP (addr, 0), op1 = XEXP (addr, 1), op2 = 0;
|
|
|
|
|
if (GET_CODE (op0) == REG
|
|
|
|
|
&& (regno = REGNO (op0)) >= FIRST_PSEUDO_REGISTER
|
|
|
|
|
&& reg_renumber[regno] < 0
|
|
|
|
|
&& reg_equiv_constant[regno] != 0)
|
|
|
|
|
op0 = reg_equiv_constant[regno];
|
|
|
|
|
else if (GET_CODE (op1) == REG
|
1999-09-01 16:30:35 +02:00
|
|
|
|
&& (regno = REGNO (op1)) >= FIRST_PSEUDO_REGISTER
|
|
|
|
|
&& reg_renumber[regno] < 0
|
|
|
|
|
&& reg_equiv_constant[regno] != 0)
|
1992-02-28 11:23:25 +01:00
|
|
|
|
op1 = reg_equiv_constant[regno];
|
|
|
|
|
else if (GET_CODE (op0) == PLUS
|
|
|
|
|
&& (tem = subst_indexed_address (op0)) != op0)
|
|
|
|
|
op0 = tem;
|
|
|
|
|
else if (GET_CODE (op1) == PLUS
|
|
|
|
|
&& (tem = subst_indexed_address (op1)) != op1)
|
|
|
|
|
op1 = tem;
|
|
|
|
|
else
|
|
|
|
|
return addr;
|
|
|
|
|
|
|
|
|
|
/* Pick out up to three things to add. */
|
|
|
|
|
if (GET_CODE (op1) == PLUS)
|
|
|
|
|
op2 = XEXP (op1, 1), op1 = XEXP (op1, 0);
|
|
|
|
|
else if (GET_CODE (op0) == PLUS)
|
|
|
|
|
op2 = op1, op1 = XEXP (op0, 1), op0 = XEXP (op0, 0);
|
|
|
|
|
|
|
|
|
|
/* Compute the sum. */
|
|
|
|
|
if (op2 != 0)
|
|
|
|
|
op1 = form_sum (op1, op2);
|
|
|
|
|
if (op1 != 0)
|
|
|
|
|
op0 = form_sum (op0, op1);
|
|
|
|
|
|
|
|
|
|
return op0;
|
|
|
|
|
}
|
|
|
|
|
return addr;
|
|
|
|
|
}
|
|
|
|
|
|
2000-12-22 02:25:23 +01:00
|
|
|
|
/* Update the REG_INC notes for an insn. It updates all REG_INC
|
|
|
|
|
notes for the instruction which refer to REGNO the to refer
|
|
|
|
|
to the reload number.
|
|
|
|
|
|
|
|
|
|
INSN is the insn for which any REG_INC notes need updating.
|
|
|
|
|
|
|
|
|
|
REGNO is the register number which has been reloaded.
|
|
|
|
|
|
|
|
|
|
RELOADNUM is the reload number. */
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
update_auto_inc_notes (insn, regno, reloadnum)
|
|
|
|
|
rtx insn ATTRIBUTE_UNUSED;
|
|
|
|
|
int regno ATTRIBUTE_UNUSED;
|
|
|
|
|
int reloadnum ATTRIBUTE_UNUSED;
|
|
|
|
|
{
|
|
|
|
|
#ifdef AUTO_INC_DEC
|
|
|
|
|
rtx link;
|
|
|
|
|
|
|
|
|
|
for (link = REG_NOTES (insn); link; link = XEXP (link, 1))
|
|
|
|
|
if (REG_NOTE_KIND (link) == REG_INC
|
|
|
|
|
&& REGNO (XEXP (link, 0)) == regno)
|
|
|
|
|
push_replacement (&XEXP (link, 0), reloadnum, VOIDmode);
|
|
|
|
|
#endif
|
|
|
|
|
}
|
|
|
|
|
|
1997-01-14 21:38:34 +01:00
|
|
|
|
/* Record the pseudo registers we must reload into hard registers in a
|
|
|
|
|
subexpression of a would-be memory address, X referring to a value
|
|
|
|
|
in mode MODE. (This function is not called if the address we find
|
|
|
|
|
is strictly valid.)
|
|
|
|
|
|
1992-02-28 11:23:25 +01:00
|
|
|
|
CONTEXT = 1 means we are considering regs as index regs,
|
|
|
|
|
= 0 means we are considering them as base regs.
|
|
|
|
|
|
1993-03-29 13:27:52 +02:00
|
|
|
|
OPNUM and TYPE specify the purpose of any reloads made.
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
|
|
|
|
IND_LEVELS says how many levels of indirect addressing are
|
|
|
|
|
supported at this point in the address.
|
|
|
|
|
|
1997-03-15 13:28:39 +01:00
|
|
|
|
INSN, if nonzero, is the insn in which we do the reload. It is used
|
|
|
|
|
to determine if we may generate output reloads.
|
|
|
|
|
|
1992-02-28 11:23:25 +01:00
|
|
|
|
We return nonzero if X, as a whole, is reloaded or replaced. */
|
|
|
|
|
|
|
|
|
|
/* Note that we take shortcuts assuming that no multi-reg machine mode
|
|
|
|
|
occurs as part of an address.
|
|
|
|
|
Also, this is not fully machine-customizable; it works for machines
|
combine.c, [...]: consistently use "VAX", "VAXen", and "MicroVAX" in comments and documentation.
* combine.c, config.gcc, cse.c, defaults.h, real.c, reload.c,
simplify-rtx.c, config/alpha/alpha.h, config/avr/avr.h,
config/convex/convex.h, config/d30v/d30v.c,
config/d30v/d30v.h, config/dsp16xx/dsp16xx.h,
config/elxsi/elxsi.h, config/fr30/fr30.h, config/m88k/m88k.c,
config/mips/mips.h, config/mn10200/mn10200.h,
config/mn10300/mn10300.h, config/pdp11/pdp11.md,
config/v850/v850.h, config/vax/openbsd.h,
config/vax/openbsd1.h, config/vax/ultrix.h,
config/vax/vax-protos.h, config/vax/vax.c, config/vax/vax.h,
config/vax/vax.md, config/vax/vaxv.h, config/vax/xm-vms.h,
cp/decl2.c, doc/contrib.texi, doc/cpp.texi, doc/gcc.texi,
doc/install.texi, doc/invoke.texi, doc/md.texi, doc/rtl.texi,
doc/tm.texi: consistently use "VAX", "VAXen", and "MicroVAX"
in comments and documentation.
From-SVN: r44589
2001-08-03 03:19:20 +02:00
|
|
|
|
such as VAXen and 68000's and 32000's, but other possible machines
|
1992-02-28 11:23:25 +01:00
|
|
|
|
could have addressing modes that this does not handle right. */
|
|
|
|
|
|
|
|
|
|
static int
|
1997-03-15 13:28:39 +01:00
|
|
|
|
find_reloads_address_1 (mode, x, context, loc, opnum, type, ind_levels, insn)
|
1997-01-14 21:38:34 +01:00
|
|
|
|
enum machine_mode mode;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
rtx x;
|
|
|
|
|
int context;
|
|
|
|
|
rtx *loc;
|
1993-03-29 13:27:52 +02:00
|
|
|
|
int opnum;
|
|
|
|
|
enum reload_type type;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
int ind_levels;
|
1997-03-15 13:28:39 +01:00
|
|
|
|
rtx insn;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
{
|
2001-10-11 05:16:15 +02:00
|
|
|
|
RTX_CODE code = GET_CODE (x);
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
1994-02-25 13:19:23 +01:00
|
|
|
|
switch (code)
|
1992-02-28 11:23:25 +01:00
|
|
|
|
{
|
1994-02-25 13:19:23 +01:00
|
|
|
|
case PLUS:
|
|
|
|
|
{
|
2001-10-11 05:16:15 +02:00
|
|
|
|
rtx orig_op0 = XEXP (x, 0);
|
|
|
|
|
rtx orig_op1 = XEXP (x, 1);
|
|
|
|
|
RTX_CODE code0 = GET_CODE (orig_op0);
|
|
|
|
|
RTX_CODE code1 = GET_CODE (orig_op1);
|
|
|
|
|
rtx op0 = orig_op0;
|
|
|
|
|
rtx op1 = orig_op1;
|
1994-02-25 13:19:23 +01:00
|
|
|
|
|
|
|
|
|
if (GET_CODE (op0) == SUBREG)
|
|
|
|
|
{
|
|
|
|
|
op0 = SUBREG_REG (op0);
|
|
|
|
|
code0 = GET_CODE (op0);
|
1995-07-29 15:43:27 +02:00
|
|
|
|
if (code0 == REG && REGNO (op0) < FIRST_PSEUDO_REGISTER)
|
alias.c: Change all uses of gen_rtx(FOO...) to gen_rtx_FOO...
* alias.c: Change all uses of gen_rtx(FOO...) to gen_rtx_FOO;
change gen_rtx(expr...) to gen_rtx_fmt_foo(expr...).
* caller-save.c, calls.c, combine.c, cse.c: Likewise.
* dwarf2out.c, except.c, explow.c, expmed.c, expr.c: Likewise.
* final.c, flow.c, function.c, genpeep.c, haifa-sched.c: Likewise.
* halfpic.c, integrate.c, jump.c, local-alloc.c, loop.c: Likewise.
* profile.c, recog.c, reg-stack.c, regclass.c, regmove.c: Likewise.
* reload.c, reload1.c, reorg.c, sched.c, stmt.c, stupid.c: Likewise.
* unroll.c, varasm.c: Likewise.
* config/alpha/alpha.c, config/alpha/alpha.md: Likewise.
From-SVN: r17357
1998-01-15 00:10:50 +01:00
|
|
|
|
op0 = gen_rtx_REG (word_mode,
|
Use byte offsets in SUBREGs instead of words.
2001-04-03 Jakub Jelinek <jakub@redhat.com>
David S. Miller <davem@pierdol.cobaltmicro.com>
Andrew MacLeod <amacleod@redhat.com>
Use byte offsets in SUBREGs instead of words.
* alias.c (nonlocal_mentioned_p): Use subreg_regno function.
* caller-save.c (mark_set_regs): Change callers of subreg_hard_regno
to pass new argument.
(add_stored_regs): Use subreg_regno_offset function.
* calls.c (expand_call): For non-paradoxical SUBREG take endianess
into account.
(precompute_arguments): Use gen_lowpart_SUBREG.
* combine.c (try_combine): Replace explicit XEXP with SUBREG_REG.
(combine_simplify_rtx): Rework to use SUBREG_BYTE.
(simplify_set): Rework to use SUBREG_BYTE.
(expand_field_assignment): Use SUBREG_BYTE.
(make_extraction): Use SUBREG_BYTE.
(if_then_else_cond): Use SUBREG_BYTE.
(apply_distributive_law): Use SUBREG_BYTE and fixup subreg comments.
(gen_lowpart_for_combine): Compute full byte offset.
* cse.c (mention_regs): Use SUBREG_BYTE.
(remove_invalid_subreg_refs): Rework to use SUBREG_BYTE.
(canon_hash): Use SUBREG_BYTE.
(fold_rtx): Pass SUBREG_BYTE div UNITS_PER_WORD to operand_subword.
(gen_lowpart_if_possible): Formatting.
* dbxout.c (dbxout_symbol_location): Compute SUBREG hard regnos
correctly.
* dwarf2out.c (is_pseudo_reg): Fixup explicit XEXP into SUBREG_REG
(mem_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
(loc_descriptor): Fixup explicit XEXP into SUBREG_REG
* dwarfout.c (is_pseudo_reg): Fixup explicit XEXP into SUBREG_REG
(output_mem_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
(output_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
* emit-rtl.c (gen_rtx_SUBREG): New function, used to verify
certain invariants about SUBREGs the compiler creates.
(gen_lowpart_SUBREG): New function.
(subreg_hard_regno): New function to get the final register number.
(gen_lowpart_common): Use SUBREG_BYTE.
(gen_imagpart): Spacing nits.
(subreg_realpart_p): Use SUBREG_BYTE.
(gen_highpart): Use SUBREG_BYTE.
(subreg_lowpart_p): Always compute endian corrected goal offset,
even at the byte level, then compare against that.
(constant_subword): New function, pulled out all constant cases
from operand_subword and changed second argument name to offset.
(operand_subword): Detect non REG/SUBREG/CONCAT/MEM cases early
and call constant_subword to do the work. Return const0_rtx if
looking for a word outside of OP.
(operand_subword_force): Change second arg name to offset.
* expmed.c (store_bit_field): Use SUBREG_BYTE.
(store_split_bit_field): Use SUBREG_BYTE.
(extract_bit_field): Use SUBREG_BYTE.
(extract_split_bit_field): Use SUBREG_BYTE.
(expand_shift): Use SUBREG_BYTE.
* expr.c (store_expr, expand_expr): Use gen_lowpart_SUBREG.
* final.c (alter_subreg) Use subreg_hard_regno and SUBREG_BYTE.
* flow.c (set_noop_p): Use SUBREG_BYTE.
(mark_set_1): Remove ALTER_HARD_SUBREG. Use subreg_regno_offset instead.
* function.c (fixup_var_refs_1): Fixup explicit XEXP into a SUBREG_REG.
(fixup_memory_subreg): Use SUBREG_BYTE and remove byte endian
correction code.
(optimize_bit_field): Use SUBREG_BYTE.
(purge_addressof_1): Use SUBREG_BYTE.
(purge_single_hard_subreg_set): Use subreg_regno_offset function.
(assign_params): Mark arguments SUBREG_PROMOTED_VAR_P if they are
actually promoted by the caller and PROMOTE_FOR_CALLS_ONLY is true.
* gengenrtl.c (special_rtx): Add SUBREG.
* global.c (mark_reg_store): Use SUBREG_BYTE.
(set_preference): Rework to use subreg_regno_offset and SUBREG_BYTE.
* ifcvt (noce_emit_move_insn): Use SUBREG_BYTE.
* integrate.c (copy_rtx_and_substitute): Use SUBREG_BYTE and make sure
final byte offset is congruent to subreg's mode size.
(subst_constants): Use SUBREG_BYTE.
(mark_stores): Use subreg_regno_offset function.
* jump.c (rtx_renumbered_equal_p, true_regnum): Use subreg_regno_offset
function and SUBREG_BYTE.
* local-alloc.c (combine_regs): Use subreg_regno_offset function.
(reg_is_born): Use subreg_hard_regno.
* recog.c (valid_replace_rtx_1): Use SUBREG_BYTE and remove byte
endian correction code. Don't combine subregs unless resulting
offset aligns with type. Fix subreg constant extraction for DImode.
Simplify SUBREG of VOIDmode CONST_DOUBLE.
(general_operand): Remove dead mode_altering_drug code.
(indirect_operand): Use SUBREG_BYTE.
(constrain_operands): Use subreg_regno_offset function.
* reg-stack.c (get_true_reg): Use subreg_regno_offset function.
* regmove.c (regmove_optimize): Use SUBREG_BYTE.
(optimize_reg_copy_3): Use gen_lowpart_SUBREG.
* regs.h (REG_SIZE): Allow target to override.
(REGMODE_NATURAL_SIZE): New macro which target can override.
* reload.c (reload_inner_reg_of_subreg): subreg_regno should be used
on the entire subreg rtx.
(push_reload): Use SUBREG_BYTE in comments and code.
(find_dummy_reload): Use subreg_regno_offset. Only adjust offsets
for hard registers inside subregs.
(operands_match_p): Use subreg_regno_offset.
(find_reloads): Use SUBREG_BYTE and only advance offset for subregs
containing hard regs.
(find_reload_toplev): Use SUBREG_BYTE. Remove byte endian
corrections when fixing up MEM subregs.
(find_reloads_address_1): Use SUBREG_BYTE, subreg_regno, and
subreg_regno_offset where appropriate.
(find_reloads_subreg_address): Use SUBREG_BYTE. Remove
byte endian corrections when fixing up MEM subregs.
(subst_reloads): When combining two subregs, make sure final
offset is congruent to subreg's mode size.
(find_replacement): Use SUBREG_BYTE and subreg_regno_offset.
(refers_to_regno_for_reload_p): Use subreg_regno.
(reg_overlap_mentioned_for_reload_p): Use subreg_regno_offset.
* reload1.c (eliminate_regs) Use SUBREG_BYTE. Remove byte endian
correction code for memory subreg fixups.
(forget_old_reload_1): Use subreg_regno_offset.
(choose_reload_regs): Use subreg_regno.
(emit_input_reload_insns): Use SUBREG_BYTE.
(reload_combine_note_store): Use subreg_regno_offset.
(move2add_note_store): Use subreg_regno_offset.
* resource.c (update_live_status, mark_referenced_resources): Use
subreg_regno function.
(mark_set_resources): Use subreg_regno function.
* rtl.h (SUBREG_WORD): Rename to SUBREG_BYTE.
(subreg_regno_offset, subreg_regno): Define prototypes.
(subreg_hard_regno, constant_subword, gen_rtx_SUBREG): Newi functions.
(gen_lowpart_SUBREG): Add prototype.
* rtl.texi (subreg): Update to reflect new byte offset representation.
Add mentioning of the effect that BYTES_BIG_ENDIAN has on subregs now.
* rtlanal.c (refers_to_regno_p): Use subreg_regno.
(reg_overlap_mentioned_p): Use subreg_regno.
(replace_regs); Make sure final offset of combined subreg is
congruent to size of subreg's mode.
(subreg_regno_offset): New function.
(subreg_regno): New function.
* sched-vis.c (print_value): Change SUBREG_WORD to SUBREG_BYTE.
* sdbout.c (sdbout_symbol): Compute offset using alter_subreg.
* stmt.c (expand_anon_union_decl): Use gen_lowpart_SUBREG.
* tm.texi (ALTER_HARD_SUBREG): Remove, it is now dead.
(SUBREG_REGNO_OFFSET): Describe SUBREG_REGNO_OFFSET overrides.
* config/a29k/a29k.c (gpc_reg_operand): Use subreg_regno.
(a29k_get_reloaded_address): Use SUBREG_BYTE.
(print_operand): Use SUBREG_BYTE.
* config/alpha/alpha.c (print_operand_address): Use SUBREG_BYTE.
* config/arm/arm.c (arm_reload_in_hi): Use SUBREG_BYTE.
(arm_reload_out_hi): Use SUBREG_BYTE.
* config/d30v/d30v.c (d30v_split_double): Use subreg_regno_offset
instead of SUBREG_WORD.
(d30v_print_operand_memory_reference): Use subreg_regno_offset.
* config/dsp16xx/dsp16xx.md (extendqihi2, zero_extendqihi2): Fix
SUBREG creation to use byte offset.
* config/h8300/h8300.md (Unnamed HImode zero extraction and 16bit
inverted load insns): Fix explicit rtl subregs to use byte
offsets.
* config/i370/i370.md (cmpstrsi, movstrsi, mulsi3, divsi3,
udivsi3, umodsi3): Generate SUBREGs with byte offsets.
* config/i860/i860.c (single_insn_src_p): Use SUBREG_BYTE.
* config/i860/i860.md (mulsi3_big): Fixup explicit SUBREGs in rtl
to use byte offsets.
(unnamed fmlow.dd insn): Fixup SUBREGS to use byte offsets.
* config/i960/i960.md (extendhisi2): Generate SUBREGs with byte
offsets, also make sure it is congruent to SUBREG's mode size.
(extendqisi2, extendqihi2, zero_extendhisi2, zero_extendqisi2,
unnamed ldob insn): Generate SUBREGs with byte offset.
(zero_extendqihi2): SUBREG's are byte offsets.
* config/m68hc11/m68hc11.c (m68hc11_gen_lowpart): Use SUBREG_BYTE.
(m68hc11_gen_highpart): Use SUBREG_BYTE.
* config/m68k/m68k.md (zero_extendhisi2, zero_extendqihi2,
zero-extendqisi2): Generate SUBREGs with byte offset.
(umulsidi3, mulsidi3, subreghi1ashrdi_const32,
subregsi1ashrdi_const32, subreg1lshrdi_const32): Fixup explicit
subregs in rtl to use byte offsets.
* config/m88k/m88k.md (extendsidi2): fixup subregs to use byte offset.
* config/mips/mips.c (mips_move_1word): Use subreg_regno_offset.
(mips_move_2words): Use subreg_regno_offset.
(mips_secondary_reload_class): Use subreg_regno_offset.
* config/mips/mips.md (DImode plus, minus, move, and logical op
splits): Fixup explicit subregs in rtl to use byte offsets.
* config/mn10200/mn10200.c (print_operand): Use subreg_regno function.
* config/mn10300/mn10300.c (print_operand): Use subreg_regno function.
* config/ns32k/ns32k.md (udivmoddisi4): Fix explicit subregs in
rtl to use byte offsets.
* config/pa/pa.c (emit_move_sequence): Use SUBREG_BYTE.
* config/pa/pa.md (floatunssisf2, floatunssidf2, mulsi3): fix explicit
subregs to use byte offsets.
* config/pdp11/pdp11.md (zero_extendhisi2, modhi3, modhi3+1):
Fixup explicit subregs in rtl to use byte offsets.
* config/romp/romp.c (memory_offset_in_range_p): Use SUBREG_BYTE
and remove byte endian correction code.
* config/sh/sh.c (output_movedouble): Use subreg_regno.
(gen_ashift_hi): Use SUBREG_BYTE.
(regs_used): Use subreg_regno_offset.
(machine_dependent_reorg): Use subreg_regno_offset.
* config/sh/sh.h (INDEX_REGISTER_RTX_P): Use SUBREG_BYTE.
* config/sh/sh.md (DImode and DFmode move splits): Use subreg_regno.
(movdf_i4): Subregs are byte offsets now.
* config/sparc/sparc.c (ultra_find_type): Use SUBREG_BYTE.
* config/sparc/sparc.h (ALTER_HARD_SUBREG): Removed.
(REGMODE_NATURAL_SIZE): Override.
(REG_SIZE): For SUBREG check float mode on SUBREG_REG's mode.
* config/sparc/sparc.md (TFmode move splits): Generate SUBREGs
with byte offsets.
(zero_extendhisi2, zero_extendqidi2_insn, extendhisi2,
extendqihi2, sign_extendqihi2_insn, sign_extendqisi2_insn,
extendqidi2): Generate SUBREGs with byte offsets, also make sure
it is congruent to SUBREG's mode size.
(smulsi3_highpart_v8plus): Fix explicit subregs in rtl to use byte
offsets.
(cmp_siqi_trunc, cmp_siqi_trunc_set, cmp_diqi_trunc,
cmp_diqi_trunc_set, lshrdi3_v8plus+1, lshrdi3_v8plus+2,
lshrdi3_v8plus+3, lshrdi3_v8plus+4): Use proper
SUBREG_BYTE offset for non-paradoxical subregs in patterns.
* config/v850/v850.c (print_operand, output_move_double): Use
subreg_regno function.
Co-Authored-By: Andrew MacLeod <amacleod@redhat.com>
Co-Authored-By: David S. Miller <davem@pierdol.cobaltmicro.com>
From-SVN: r41058
2001-04-03 17:06:12 +02:00
|
|
|
|
(REGNO (op0) +
|
|
|
|
|
subreg_regno_offset (REGNO (SUBREG_REG (orig_op0)),
|
|
|
|
|
GET_MODE (SUBREG_REG (orig_op0)),
|
|
|
|
|
SUBREG_BYTE (orig_op0),
|
|
|
|
|
GET_MODE (orig_op0))));
|
1994-02-25 13:19:23 +01:00
|
|
|
|
}
|
1993-09-02 00:07:57 +02:00
|
|
|
|
|
1994-02-25 13:19:23 +01:00
|
|
|
|
if (GET_CODE (op1) == SUBREG)
|
|
|
|
|
{
|
|
|
|
|
op1 = SUBREG_REG (op1);
|
|
|
|
|
code1 = GET_CODE (op1);
|
1995-07-29 15:43:27 +02:00
|
|
|
|
if (code1 == REG && REGNO (op1) < FIRST_PSEUDO_REGISTER)
|
Use byte offsets in SUBREGs instead of words.
2001-04-03 Jakub Jelinek <jakub@redhat.com>
David S. Miller <davem@pierdol.cobaltmicro.com>
Andrew MacLeod <amacleod@redhat.com>
Use byte offsets in SUBREGs instead of words.
* alias.c (nonlocal_mentioned_p): Use subreg_regno function.
* caller-save.c (mark_set_regs): Change callers of subreg_hard_regno
to pass new argument.
(add_stored_regs): Use subreg_regno_offset function.
* calls.c (expand_call): For non-paradoxical SUBREG take endianess
into account.
(precompute_arguments): Use gen_lowpart_SUBREG.
* combine.c (try_combine): Replace explicit XEXP with SUBREG_REG.
(combine_simplify_rtx): Rework to use SUBREG_BYTE.
(simplify_set): Rework to use SUBREG_BYTE.
(expand_field_assignment): Use SUBREG_BYTE.
(make_extraction): Use SUBREG_BYTE.
(if_then_else_cond): Use SUBREG_BYTE.
(apply_distributive_law): Use SUBREG_BYTE and fixup subreg comments.
(gen_lowpart_for_combine): Compute full byte offset.
* cse.c (mention_regs): Use SUBREG_BYTE.
(remove_invalid_subreg_refs): Rework to use SUBREG_BYTE.
(canon_hash): Use SUBREG_BYTE.
(fold_rtx): Pass SUBREG_BYTE div UNITS_PER_WORD to operand_subword.
(gen_lowpart_if_possible): Formatting.
* dbxout.c (dbxout_symbol_location): Compute SUBREG hard regnos
correctly.
* dwarf2out.c (is_pseudo_reg): Fixup explicit XEXP into SUBREG_REG
(mem_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
(loc_descriptor): Fixup explicit XEXP into SUBREG_REG
* dwarfout.c (is_pseudo_reg): Fixup explicit XEXP into SUBREG_REG
(output_mem_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
(output_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
* emit-rtl.c (gen_rtx_SUBREG): New function, used to verify
certain invariants about SUBREGs the compiler creates.
(gen_lowpart_SUBREG): New function.
(subreg_hard_regno): New function to get the final register number.
(gen_lowpart_common): Use SUBREG_BYTE.
(gen_imagpart): Spacing nits.
(subreg_realpart_p): Use SUBREG_BYTE.
(gen_highpart): Use SUBREG_BYTE.
(subreg_lowpart_p): Always compute endian corrected goal offset,
even at the byte level, then compare against that.
(constant_subword): New function, pulled out all constant cases
from operand_subword and changed second argument name to offset.
(operand_subword): Detect non REG/SUBREG/CONCAT/MEM cases early
and call constant_subword to do the work. Return const0_rtx if
looking for a word outside of OP.
(operand_subword_force): Change second arg name to offset.
* expmed.c (store_bit_field): Use SUBREG_BYTE.
(store_split_bit_field): Use SUBREG_BYTE.
(extract_bit_field): Use SUBREG_BYTE.
(extract_split_bit_field): Use SUBREG_BYTE.
(expand_shift): Use SUBREG_BYTE.
* expr.c (store_expr, expand_expr): Use gen_lowpart_SUBREG.
* final.c (alter_subreg) Use subreg_hard_regno and SUBREG_BYTE.
* flow.c (set_noop_p): Use SUBREG_BYTE.
(mark_set_1): Remove ALTER_HARD_SUBREG. Use subreg_regno_offset instead.
* function.c (fixup_var_refs_1): Fixup explicit XEXP into a SUBREG_REG.
(fixup_memory_subreg): Use SUBREG_BYTE and remove byte endian
correction code.
(optimize_bit_field): Use SUBREG_BYTE.
(purge_addressof_1): Use SUBREG_BYTE.
(purge_single_hard_subreg_set): Use subreg_regno_offset function.
(assign_params): Mark arguments SUBREG_PROMOTED_VAR_P if they are
actually promoted by the caller and PROMOTE_FOR_CALLS_ONLY is true.
* gengenrtl.c (special_rtx): Add SUBREG.
* global.c (mark_reg_store): Use SUBREG_BYTE.
(set_preference): Rework to use subreg_regno_offset and SUBREG_BYTE.
* ifcvt (noce_emit_move_insn): Use SUBREG_BYTE.
* integrate.c (copy_rtx_and_substitute): Use SUBREG_BYTE and make sure
final byte offset is congruent to subreg's mode size.
(subst_constants): Use SUBREG_BYTE.
(mark_stores): Use subreg_regno_offset function.
* jump.c (rtx_renumbered_equal_p, true_regnum): Use subreg_regno_offset
function and SUBREG_BYTE.
* local-alloc.c (combine_regs): Use subreg_regno_offset function.
(reg_is_born): Use subreg_hard_regno.
* recog.c (valid_replace_rtx_1): Use SUBREG_BYTE and remove byte
endian correction code. Don't combine subregs unless resulting
offset aligns with type. Fix subreg constant extraction for DImode.
Simplify SUBREG of VOIDmode CONST_DOUBLE.
(general_operand): Remove dead mode_altering_drug code.
(indirect_operand): Use SUBREG_BYTE.
(constrain_operands): Use subreg_regno_offset function.
* reg-stack.c (get_true_reg): Use subreg_regno_offset function.
* regmove.c (regmove_optimize): Use SUBREG_BYTE.
(optimize_reg_copy_3): Use gen_lowpart_SUBREG.
* regs.h (REG_SIZE): Allow target to override.
(REGMODE_NATURAL_SIZE): New macro which target can override.
* reload.c (reload_inner_reg_of_subreg): subreg_regno should be used
on the entire subreg rtx.
(push_reload): Use SUBREG_BYTE in comments and code.
(find_dummy_reload): Use subreg_regno_offset. Only adjust offsets
for hard registers inside subregs.
(operands_match_p): Use subreg_regno_offset.
(find_reloads): Use SUBREG_BYTE and only advance offset for subregs
containing hard regs.
(find_reload_toplev): Use SUBREG_BYTE. Remove byte endian
corrections when fixing up MEM subregs.
(find_reloads_address_1): Use SUBREG_BYTE, subreg_regno, and
subreg_regno_offset where appropriate.
(find_reloads_subreg_address): Use SUBREG_BYTE. Remove
byte endian corrections when fixing up MEM subregs.
(subst_reloads): When combining two subregs, make sure final
offset is congruent to subreg's mode size.
(find_replacement): Use SUBREG_BYTE and subreg_regno_offset.
(refers_to_regno_for_reload_p): Use subreg_regno.
(reg_overlap_mentioned_for_reload_p): Use subreg_regno_offset.
* reload1.c (eliminate_regs) Use SUBREG_BYTE. Remove byte endian
correction code for memory subreg fixups.
(forget_old_reload_1): Use subreg_regno_offset.
(choose_reload_regs): Use subreg_regno.
(emit_input_reload_insns): Use SUBREG_BYTE.
(reload_combine_note_store): Use subreg_regno_offset.
(move2add_note_store): Use subreg_regno_offset.
* resource.c (update_live_status, mark_referenced_resources): Use
subreg_regno function.
(mark_set_resources): Use subreg_regno function.
* rtl.h (SUBREG_WORD): Rename to SUBREG_BYTE.
(subreg_regno_offset, subreg_regno): Define prototypes.
(subreg_hard_regno, constant_subword, gen_rtx_SUBREG): Newi functions.
(gen_lowpart_SUBREG): Add prototype.
* rtl.texi (subreg): Update to reflect new byte offset representation.
Add mentioning of the effect that BYTES_BIG_ENDIAN has on subregs now.
* rtlanal.c (refers_to_regno_p): Use subreg_regno.
(reg_overlap_mentioned_p): Use subreg_regno.
(replace_regs); Make sure final offset of combined subreg is
congruent to size of subreg's mode.
(subreg_regno_offset): New function.
(subreg_regno): New function.
* sched-vis.c (print_value): Change SUBREG_WORD to SUBREG_BYTE.
* sdbout.c (sdbout_symbol): Compute offset using alter_subreg.
* stmt.c (expand_anon_union_decl): Use gen_lowpart_SUBREG.
* tm.texi (ALTER_HARD_SUBREG): Remove, it is now dead.
(SUBREG_REGNO_OFFSET): Describe SUBREG_REGNO_OFFSET overrides.
* config/a29k/a29k.c (gpc_reg_operand): Use subreg_regno.
(a29k_get_reloaded_address): Use SUBREG_BYTE.
(print_operand): Use SUBREG_BYTE.
* config/alpha/alpha.c (print_operand_address): Use SUBREG_BYTE.
* config/arm/arm.c (arm_reload_in_hi): Use SUBREG_BYTE.
(arm_reload_out_hi): Use SUBREG_BYTE.
* config/d30v/d30v.c (d30v_split_double): Use subreg_regno_offset
instead of SUBREG_WORD.
(d30v_print_operand_memory_reference): Use subreg_regno_offset.
* config/dsp16xx/dsp16xx.md (extendqihi2, zero_extendqihi2): Fix
SUBREG creation to use byte offset.
* config/h8300/h8300.md (Unnamed HImode zero extraction and 16bit
inverted load insns): Fix explicit rtl subregs to use byte
offsets.
* config/i370/i370.md (cmpstrsi, movstrsi, mulsi3, divsi3,
udivsi3, umodsi3): Generate SUBREGs with byte offsets.
* config/i860/i860.c (single_insn_src_p): Use SUBREG_BYTE.
* config/i860/i860.md (mulsi3_big): Fixup explicit SUBREGs in rtl
to use byte offsets.
(unnamed fmlow.dd insn): Fixup SUBREGS to use byte offsets.
* config/i960/i960.md (extendhisi2): Generate SUBREGs with byte
offsets, also make sure it is congruent to SUBREG's mode size.
(extendqisi2, extendqihi2, zero_extendhisi2, zero_extendqisi2,
unnamed ldob insn): Generate SUBREGs with byte offset.
(zero_extendqihi2): SUBREG's are byte offsets.
* config/m68hc11/m68hc11.c (m68hc11_gen_lowpart): Use SUBREG_BYTE.
(m68hc11_gen_highpart): Use SUBREG_BYTE.
* config/m68k/m68k.md (zero_extendhisi2, zero_extendqihi2,
zero-extendqisi2): Generate SUBREGs with byte offset.
(umulsidi3, mulsidi3, subreghi1ashrdi_const32,
subregsi1ashrdi_const32, subreg1lshrdi_const32): Fixup explicit
subregs in rtl to use byte offsets.
* config/m88k/m88k.md (extendsidi2): fixup subregs to use byte offset.
* config/mips/mips.c (mips_move_1word): Use subreg_regno_offset.
(mips_move_2words): Use subreg_regno_offset.
(mips_secondary_reload_class): Use subreg_regno_offset.
* config/mips/mips.md (DImode plus, minus, move, and logical op
splits): Fixup explicit subregs in rtl to use byte offsets.
* config/mn10200/mn10200.c (print_operand): Use subreg_regno function.
* config/mn10300/mn10300.c (print_operand): Use subreg_regno function.
* config/ns32k/ns32k.md (udivmoddisi4): Fix explicit subregs in
rtl to use byte offsets.
* config/pa/pa.c (emit_move_sequence): Use SUBREG_BYTE.
* config/pa/pa.md (floatunssisf2, floatunssidf2, mulsi3): fix explicit
subregs to use byte offsets.
* config/pdp11/pdp11.md (zero_extendhisi2, modhi3, modhi3+1):
Fixup explicit subregs in rtl to use byte offsets.
* config/romp/romp.c (memory_offset_in_range_p): Use SUBREG_BYTE
and remove byte endian correction code.
* config/sh/sh.c (output_movedouble): Use subreg_regno.
(gen_ashift_hi): Use SUBREG_BYTE.
(regs_used): Use subreg_regno_offset.
(machine_dependent_reorg): Use subreg_regno_offset.
* config/sh/sh.h (INDEX_REGISTER_RTX_P): Use SUBREG_BYTE.
* config/sh/sh.md (DImode and DFmode move splits): Use subreg_regno.
(movdf_i4): Subregs are byte offsets now.
* config/sparc/sparc.c (ultra_find_type): Use SUBREG_BYTE.
* config/sparc/sparc.h (ALTER_HARD_SUBREG): Removed.
(REGMODE_NATURAL_SIZE): Override.
(REG_SIZE): For SUBREG check float mode on SUBREG_REG's mode.
* config/sparc/sparc.md (TFmode move splits): Generate SUBREGs
with byte offsets.
(zero_extendhisi2, zero_extendqidi2_insn, extendhisi2,
extendqihi2, sign_extendqihi2_insn, sign_extendqisi2_insn,
extendqidi2): Generate SUBREGs with byte offsets, also make sure
it is congruent to SUBREG's mode size.
(smulsi3_highpart_v8plus): Fix explicit subregs in rtl to use byte
offsets.
(cmp_siqi_trunc, cmp_siqi_trunc_set, cmp_diqi_trunc,
cmp_diqi_trunc_set, lshrdi3_v8plus+1, lshrdi3_v8plus+2,
lshrdi3_v8plus+3, lshrdi3_v8plus+4): Use proper
SUBREG_BYTE offset for non-paradoxical subregs in patterns.
* config/v850/v850.c (print_operand, output_move_double): Use
subreg_regno function.
Co-Authored-By: Andrew MacLeod <amacleod@redhat.com>
Co-Authored-By: David S. Miller <davem@pierdol.cobaltmicro.com>
From-SVN: r41058
2001-04-03 17:06:12 +02:00
|
|
|
|
/* ??? Why is this given op1's mode and above for
|
|
|
|
|
??? op0 SUBREGs we use word_mode? */
|
alias.c: Change all uses of gen_rtx(FOO...) to gen_rtx_FOO...
* alias.c: Change all uses of gen_rtx(FOO...) to gen_rtx_FOO;
change gen_rtx(expr...) to gen_rtx_fmt_foo(expr...).
* caller-save.c, calls.c, combine.c, cse.c: Likewise.
* dwarf2out.c, except.c, explow.c, expmed.c, expr.c: Likewise.
* final.c, flow.c, function.c, genpeep.c, haifa-sched.c: Likewise.
* halfpic.c, integrate.c, jump.c, local-alloc.c, loop.c: Likewise.
* profile.c, recog.c, reg-stack.c, regclass.c, regmove.c: Likewise.
* reload.c, reload1.c, reorg.c, sched.c, stmt.c, stupid.c: Likewise.
* unroll.c, varasm.c: Likewise.
* config/alpha/alpha.c, config/alpha/alpha.md: Likewise.
From-SVN: r17357
1998-01-15 00:10:50 +01:00
|
|
|
|
op1 = gen_rtx_REG (GET_MODE (op1),
|
Use byte offsets in SUBREGs instead of words.
2001-04-03 Jakub Jelinek <jakub@redhat.com>
David S. Miller <davem@pierdol.cobaltmicro.com>
Andrew MacLeod <amacleod@redhat.com>
Use byte offsets in SUBREGs instead of words.
* alias.c (nonlocal_mentioned_p): Use subreg_regno function.
* caller-save.c (mark_set_regs): Change callers of subreg_hard_regno
to pass new argument.
(add_stored_regs): Use subreg_regno_offset function.
* calls.c (expand_call): For non-paradoxical SUBREG take endianess
into account.
(precompute_arguments): Use gen_lowpart_SUBREG.
* combine.c (try_combine): Replace explicit XEXP with SUBREG_REG.
(combine_simplify_rtx): Rework to use SUBREG_BYTE.
(simplify_set): Rework to use SUBREG_BYTE.
(expand_field_assignment): Use SUBREG_BYTE.
(make_extraction): Use SUBREG_BYTE.
(if_then_else_cond): Use SUBREG_BYTE.
(apply_distributive_law): Use SUBREG_BYTE and fixup subreg comments.
(gen_lowpart_for_combine): Compute full byte offset.
* cse.c (mention_regs): Use SUBREG_BYTE.
(remove_invalid_subreg_refs): Rework to use SUBREG_BYTE.
(canon_hash): Use SUBREG_BYTE.
(fold_rtx): Pass SUBREG_BYTE div UNITS_PER_WORD to operand_subword.
(gen_lowpart_if_possible): Formatting.
* dbxout.c (dbxout_symbol_location): Compute SUBREG hard regnos
correctly.
* dwarf2out.c (is_pseudo_reg): Fixup explicit XEXP into SUBREG_REG
(mem_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
(loc_descriptor): Fixup explicit XEXP into SUBREG_REG
* dwarfout.c (is_pseudo_reg): Fixup explicit XEXP into SUBREG_REG
(output_mem_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
(output_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
* emit-rtl.c (gen_rtx_SUBREG): New function, used to verify
certain invariants about SUBREGs the compiler creates.
(gen_lowpart_SUBREG): New function.
(subreg_hard_regno): New function to get the final register number.
(gen_lowpart_common): Use SUBREG_BYTE.
(gen_imagpart): Spacing nits.
(subreg_realpart_p): Use SUBREG_BYTE.
(gen_highpart): Use SUBREG_BYTE.
(subreg_lowpart_p): Always compute endian corrected goal offset,
even at the byte level, then compare against that.
(constant_subword): New function, pulled out all constant cases
from operand_subword and changed second argument name to offset.
(operand_subword): Detect non REG/SUBREG/CONCAT/MEM cases early
and call constant_subword to do the work. Return const0_rtx if
looking for a word outside of OP.
(operand_subword_force): Change second arg name to offset.
* expmed.c (store_bit_field): Use SUBREG_BYTE.
(store_split_bit_field): Use SUBREG_BYTE.
(extract_bit_field): Use SUBREG_BYTE.
(extract_split_bit_field): Use SUBREG_BYTE.
(expand_shift): Use SUBREG_BYTE.
* expr.c (store_expr, expand_expr): Use gen_lowpart_SUBREG.
* final.c (alter_subreg) Use subreg_hard_regno and SUBREG_BYTE.
* flow.c (set_noop_p): Use SUBREG_BYTE.
(mark_set_1): Remove ALTER_HARD_SUBREG. Use subreg_regno_offset instead.
* function.c (fixup_var_refs_1): Fixup explicit XEXP into a SUBREG_REG.
(fixup_memory_subreg): Use SUBREG_BYTE and remove byte endian
correction code.
(optimize_bit_field): Use SUBREG_BYTE.
(purge_addressof_1): Use SUBREG_BYTE.
(purge_single_hard_subreg_set): Use subreg_regno_offset function.
(assign_params): Mark arguments SUBREG_PROMOTED_VAR_P if they are
actually promoted by the caller and PROMOTE_FOR_CALLS_ONLY is true.
* gengenrtl.c (special_rtx): Add SUBREG.
* global.c (mark_reg_store): Use SUBREG_BYTE.
(set_preference): Rework to use subreg_regno_offset and SUBREG_BYTE.
* ifcvt (noce_emit_move_insn): Use SUBREG_BYTE.
* integrate.c (copy_rtx_and_substitute): Use SUBREG_BYTE and make sure
final byte offset is congruent to subreg's mode size.
(subst_constants): Use SUBREG_BYTE.
(mark_stores): Use subreg_regno_offset function.
* jump.c (rtx_renumbered_equal_p, true_regnum): Use subreg_regno_offset
function and SUBREG_BYTE.
* local-alloc.c (combine_regs): Use subreg_regno_offset function.
(reg_is_born): Use subreg_hard_regno.
* recog.c (valid_replace_rtx_1): Use SUBREG_BYTE and remove byte
endian correction code. Don't combine subregs unless resulting
offset aligns with type. Fix subreg constant extraction for DImode.
Simplify SUBREG of VOIDmode CONST_DOUBLE.
(general_operand): Remove dead mode_altering_drug code.
(indirect_operand): Use SUBREG_BYTE.
(constrain_operands): Use subreg_regno_offset function.
* reg-stack.c (get_true_reg): Use subreg_regno_offset function.
* regmove.c (regmove_optimize): Use SUBREG_BYTE.
(optimize_reg_copy_3): Use gen_lowpart_SUBREG.
* regs.h (REG_SIZE): Allow target to override.
(REGMODE_NATURAL_SIZE): New macro which target can override.
* reload.c (reload_inner_reg_of_subreg): subreg_regno should be used
on the entire subreg rtx.
(push_reload): Use SUBREG_BYTE in comments and code.
(find_dummy_reload): Use subreg_regno_offset. Only adjust offsets
for hard registers inside subregs.
(operands_match_p): Use subreg_regno_offset.
(find_reloads): Use SUBREG_BYTE and only advance offset for subregs
containing hard regs.
(find_reload_toplev): Use SUBREG_BYTE. Remove byte endian
corrections when fixing up MEM subregs.
(find_reloads_address_1): Use SUBREG_BYTE, subreg_regno, and
subreg_regno_offset where appropriate.
(find_reloads_subreg_address): Use SUBREG_BYTE. Remove
byte endian corrections when fixing up MEM subregs.
(subst_reloads): When combining two subregs, make sure final
offset is congruent to subreg's mode size.
(find_replacement): Use SUBREG_BYTE and subreg_regno_offset.
(refers_to_regno_for_reload_p): Use subreg_regno.
(reg_overlap_mentioned_for_reload_p): Use subreg_regno_offset.
* reload1.c (eliminate_regs) Use SUBREG_BYTE. Remove byte endian
correction code for memory subreg fixups.
(forget_old_reload_1): Use subreg_regno_offset.
(choose_reload_regs): Use subreg_regno.
(emit_input_reload_insns): Use SUBREG_BYTE.
(reload_combine_note_store): Use subreg_regno_offset.
(move2add_note_store): Use subreg_regno_offset.
* resource.c (update_live_status, mark_referenced_resources): Use
subreg_regno function.
(mark_set_resources): Use subreg_regno function.
* rtl.h (SUBREG_WORD): Rename to SUBREG_BYTE.
(subreg_regno_offset, subreg_regno): Define prototypes.
(subreg_hard_regno, constant_subword, gen_rtx_SUBREG): Newi functions.
(gen_lowpart_SUBREG): Add prototype.
* rtl.texi (subreg): Update to reflect new byte offset representation.
Add mentioning of the effect that BYTES_BIG_ENDIAN has on subregs now.
* rtlanal.c (refers_to_regno_p): Use subreg_regno.
(reg_overlap_mentioned_p): Use subreg_regno.
(replace_regs); Make sure final offset of combined subreg is
congruent to size of subreg's mode.
(subreg_regno_offset): New function.
(subreg_regno): New function.
* sched-vis.c (print_value): Change SUBREG_WORD to SUBREG_BYTE.
* sdbout.c (sdbout_symbol): Compute offset using alter_subreg.
* stmt.c (expand_anon_union_decl): Use gen_lowpart_SUBREG.
* tm.texi (ALTER_HARD_SUBREG): Remove, it is now dead.
(SUBREG_REGNO_OFFSET): Describe SUBREG_REGNO_OFFSET overrides.
* config/a29k/a29k.c (gpc_reg_operand): Use subreg_regno.
(a29k_get_reloaded_address): Use SUBREG_BYTE.
(print_operand): Use SUBREG_BYTE.
* config/alpha/alpha.c (print_operand_address): Use SUBREG_BYTE.
* config/arm/arm.c (arm_reload_in_hi): Use SUBREG_BYTE.
(arm_reload_out_hi): Use SUBREG_BYTE.
* config/d30v/d30v.c (d30v_split_double): Use subreg_regno_offset
instead of SUBREG_WORD.
(d30v_print_operand_memory_reference): Use subreg_regno_offset.
* config/dsp16xx/dsp16xx.md (extendqihi2, zero_extendqihi2): Fix
SUBREG creation to use byte offset.
* config/h8300/h8300.md (Unnamed HImode zero extraction and 16bit
inverted load insns): Fix explicit rtl subregs to use byte
offsets.
* config/i370/i370.md (cmpstrsi, movstrsi, mulsi3, divsi3,
udivsi3, umodsi3): Generate SUBREGs with byte offsets.
* config/i860/i860.c (single_insn_src_p): Use SUBREG_BYTE.
* config/i860/i860.md (mulsi3_big): Fixup explicit SUBREGs in rtl
to use byte offsets.
(unnamed fmlow.dd insn): Fixup SUBREGS to use byte offsets.
* config/i960/i960.md (extendhisi2): Generate SUBREGs with byte
offsets, also make sure it is congruent to SUBREG's mode size.
(extendqisi2, extendqihi2, zero_extendhisi2, zero_extendqisi2,
unnamed ldob insn): Generate SUBREGs with byte offset.
(zero_extendqihi2): SUBREG's are byte offsets.
* config/m68hc11/m68hc11.c (m68hc11_gen_lowpart): Use SUBREG_BYTE.
(m68hc11_gen_highpart): Use SUBREG_BYTE.
* config/m68k/m68k.md (zero_extendhisi2, zero_extendqihi2,
zero-extendqisi2): Generate SUBREGs with byte offset.
(umulsidi3, mulsidi3, subreghi1ashrdi_const32,
subregsi1ashrdi_const32, subreg1lshrdi_const32): Fixup explicit
subregs in rtl to use byte offsets.
* config/m88k/m88k.md (extendsidi2): fixup subregs to use byte offset.
* config/mips/mips.c (mips_move_1word): Use subreg_regno_offset.
(mips_move_2words): Use subreg_regno_offset.
(mips_secondary_reload_class): Use subreg_regno_offset.
* config/mips/mips.md (DImode plus, minus, move, and logical op
splits): Fixup explicit subregs in rtl to use byte offsets.
* config/mn10200/mn10200.c (print_operand): Use subreg_regno function.
* config/mn10300/mn10300.c (print_operand): Use subreg_regno function.
* config/ns32k/ns32k.md (udivmoddisi4): Fix explicit subregs in
rtl to use byte offsets.
* config/pa/pa.c (emit_move_sequence): Use SUBREG_BYTE.
* config/pa/pa.md (floatunssisf2, floatunssidf2, mulsi3): fix explicit
subregs to use byte offsets.
* config/pdp11/pdp11.md (zero_extendhisi2, modhi3, modhi3+1):
Fixup explicit subregs in rtl to use byte offsets.
* config/romp/romp.c (memory_offset_in_range_p): Use SUBREG_BYTE
and remove byte endian correction code.
* config/sh/sh.c (output_movedouble): Use subreg_regno.
(gen_ashift_hi): Use SUBREG_BYTE.
(regs_used): Use subreg_regno_offset.
(machine_dependent_reorg): Use subreg_regno_offset.
* config/sh/sh.h (INDEX_REGISTER_RTX_P): Use SUBREG_BYTE.
* config/sh/sh.md (DImode and DFmode move splits): Use subreg_regno.
(movdf_i4): Subregs are byte offsets now.
* config/sparc/sparc.c (ultra_find_type): Use SUBREG_BYTE.
* config/sparc/sparc.h (ALTER_HARD_SUBREG): Removed.
(REGMODE_NATURAL_SIZE): Override.
(REG_SIZE): For SUBREG check float mode on SUBREG_REG's mode.
* config/sparc/sparc.md (TFmode move splits): Generate SUBREGs
with byte offsets.
(zero_extendhisi2, zero_extendqidi2_insn, extendhisi2,
extendqihi2, sign_extendqihi2_insn, sign_extendqisi2_insn,
extendqidi2): Generate SUBREGs with byte offsets, also make sure
it is congruent to SUBREG's mode size.
(smulsi3_highpart_v8plus): Fix explicit subregs in rtl to use byte
offsets.
(cmp_siqi_trunc, cmp_siqi_trunc_set, cmp_diqi_trunc,
cmp_diqi_trunc_set, lshrdi3_v8plus+1, lshrdi3_v8plus+2,
lshrdi3_v8plus+3, lshrdi3_v8plus+4): Use proper
SUBREG_BYTE offset for non-paradoxical subregs in patterns.
* config/v850/v850.c (print_operand, output_move_double): Use
subreg_regno function.
Co-Authored-By: Andrew MacLeod <amacleod@redhat.com>
Co-Authored-By: David S. Miller <davem@pierdol.cobaltmicro.com>
From-SVN: r41058
2001-04-03 17:06:12 +02:00
|
|
|
|
(REGNO (op1) +
|
|
|
|
|
subreg_regno_offset (REGNO (SUBREG_REG (orig_op1)),
|
|
|
|
|
GET_MODE (SUBREG_REG (orig_op1)),
|
|
|
|
|
SUBREG_BYTE (orig_op1),
|
|
|
|
|
GET_MODE (orig_op1))));
|
1994-02-25 13:19:23 +01:00
|
|
|
|
}
|
|
|
|
|
|
1999-09-01 16:30:35 +02:00
|
|
|
|
if (code0 == MULT || code0 == SIGN_EXTEND || code0 == TRUNCATE
|
1994-12-10 00:52:37 +01:00
|
|
|
|
|| code0 == ZERO_EXTEND || code1 == MEM)
|
1994-02-25 13:19:23 +01:00
|
|
|
|
{
|
1997-01-14 21:38:34 +01:00
|
|
|
|
find_reloads_address_1 (mode, orig_op0, 1, &XEXP (x, 0), opnum,
|
1997-03-15 13:28:39 +01:00
|
|
|
|
type, ind_levels, insn);
|
1997-01-14 21:38:34 +01:00
|
|
|
|
find_reloads_address_1 (mode, orig_op1, 0, &XEXP (x, 1), opnum,
|
1997-03-15 13:28:39 +01:00
|
|
|
|
type, ind_levels, insn);
|
1994-02-25 13:19:23 +01:00
|
|
|
|
}
|
|
|
|
|
|
1994-12-10 00:52:37 +01:00
|
|
|
|
else if (code1 == MULT || code1 == SIGN_EXTEND || code1 == TRUNCATE
|
|
|
|
|
|| code1 == ZERO_EXTEND || code0 == MEM)
|
1994-02-25 13:19:23 +01:00
|
|
|
|
{
|
1997-01-14 21:38:34 +01:00
|
|
|
|
find_reloads_address_1 (mode, orig_op0, 0, &XEXP (x, 0), opnum,
|
1997-03-15 13:28:39 +01:00
|
|
|
|
type, ind_levels, insn);
|
1997-01-14 21:38:34 +01:00
|
|
|
|
find_reloads_address_1 (mode, orig_op1, 1, &XEXP (x, 1), opnum,
|
1997-03-15 13:28:39 +01:00
|
|
|
|
type, ind_levels, insn);
|
1994-02-25 13:19:23 +01:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
else if (code0 == CONST_INT || code0 == CONST
|
|
|
|
|
|| code0 == SYMBOL_REF || code0 == LABEL_REF)
|
1997-01-14 21:38:34 +01:00
|
|
|
|
find_reloads_address_1 (mode, orig_op1, 0, &XEXP (x, 1), opnum,
|
1997-03-15 13:28:39 +01:00
|
|
|
|
type, ind_levels, insn);
|
1994-02-25 13:19:23 +01:00
|
|
|
|
|
|
|
|
|
else if (code1 == CONST_INT || code1 == CONST
|
|
|
|
|
|| code1 == SYMBOL_REF || code1 == LABEL_REF)
|
1997-01-14 21:38:34 +01:00
|
|
|
|
find_reloads_address_1 (mode, orig_op0, 0, &XEXP (x, 0), opnum,
|
1997-03-15 13:28:39 +01:00
|
|
|
|
type, ind_levels, insn);
|
1994-02-25 13:19:23 +01:00
|
|
|
|
|
|
|
|
|
else if (code0 == REG && code1 == REG)
|
|
|
|
|
{
|
|
|
|
|
if (REG_OK_FOR_INDEX_P (op0)
|
1997-01-14 21:38:34 +01:00
|
|
|
|
&& REG_MODE_OK_FOR_BASE_P (op1, mode))
|
1994-02-25 13:19:23 +01:00
|
|
|
|
return 0;
|
|
|
|
|
else if (REG_OK_FOR_INDEX_P (op1)
|
1997-01-14 21:38:34 +01:00
|
|
|
|
&& REG_MODE_OK_FOR_BASE_P (op0, mode))
|
1994-02-25 13:19:23 +01:00
|
|
|
|
return 0;
|
1997-01-14 21:38:34 +01:00
|
|
|
|
else if (REG_MODE_OK_FOR_BASE_P (op1, mode))
|
|
|
|
|
find_reloads_address_1 (mode, orig_op0, 1, &XEXP (x, 0), opnum,
|
1997-03-15 13:28:39 +01:00
|
|
|
|
type, ind_levels, insn);
|
1997-01-14 21:38:34 +01:00
|
|
|
|
else if (REG_MODE_OK_FOR_BASE_P (op0, mode))
|
|
|
|
|
find_reloads_address_1 (mode, orig_op1, 1, &XEXP (x, 1), opnum,
|
1997-03-15 13:28:39 +01:00
|
|
|
|
type, ind_levels, insn);
|
1994-02-25 13:19:23 +01:00
|
|
|
|
else if (REG_OK_FOR_INDEX_P (op1))
|
1997-01-14 21:38:34 +01:00
|
|
|
|
find_reloads_address_1 (mode, orig_op0, 0, &XEXP (x, 0), opnum,
|
1997-03-15 13:28:39 +01:00
|
|
|
|
type, ind_levels, insn);
|
1994-02-25 13:19:23 +01:00
|
|
|
|
else if (REG_OK_FOR_INDEX_P (op0))
|
1997-01-14 21:38:34 +01:00
|
|
|
|
find_reloads_address_1 (mode, orig_op1, 0, &XEXP (x, 1), opnum,
|
1997-03-15 13:28:39 +01:00
|
|
|
|
type, ind_levels, insn);
|
1994-02-25 13:19:23 +01:00
|
|
|
|
else
|
|
|
|
|
{
|
1997-01-14 21:38:34 +01:00
|
|
|
|
find_reloads_address_1 (mode, orig_op0, 1, &XEXP (x, 0), opnum,
|
1997-03-15 13:28:39 +01:00
|
|
|
|
type, ind_levels, insn);
|
1997-01-14 21:38:34 +01:00
|
|
|
|
find_reloads_address_1 (mode, orig_op1, 0, &XEXP (x, 1), opnum,
|
1997-03-15 13:28:39 +01:00
|
|
|
|
type, ind_levels, insn);
|
1994-02-25 13:19:23 +01:00
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
else if (code0 == REG)
|
|
|
|
|
{
|
1997-01-14 21:38:34 +01:00
|
|
|
|
find_reloads_address_1 (mode, orig_op0, 1, &XEXP (x, 0), opnum,
|
1997-03-15 13:28:39 +01:00
|
|
|
|
type, ind_levels, insn);
|
1997-01-14 21:38:34 +01:00
|
|
|
|
find_reloads_address_1 (mode, orig_op1, 0, &XEXP (x, 1), opnum,
|
1997-03-15 13:28:39 +01:00
|
|
|
|
type, ind_levels, insn);
|
1994-02-25 13:19:23 +01:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
else if (code1 == REG)
|
|
|
|
|
{
|
1997-01-14 21:38:34 +01:00
|
|
|
|
find_reloads_address_1 (mode, orig_op1, 1, &XEXP (x, 1), opnum,
|
1997-03-15 13:28:39 +01:00
|
|
|
|
type, ind_levels, insn);
|
1997-01-14 21:38:34 +01:00
|
|
|
|
find_reloads_address_1 (mode, orig_op0, 0, &XEXP (x, 0), opnum,
|
1997-03-15 13:28:39 +01:00
|
|
|
|
type, ind_levels, insn);
|
1994-02-25 13:19:23 +01:00
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
|
2000-07-28 19:46:18 +02:00
|
|
|
|
case POST_MODIFY:
|
|
|
|
|
case PRE_MODIFY:
|
|
|
|
|
{
|
|
|
|
|
rtx op0 = XEXP (x, 0);
|
|
|
|
|
rtx op1 = XEXP (x, 1);
|
|
|
|
|
|
|
|
|
|
if (GET_CODE (op1) != PLUS && GET_CODE (op1) != MINUS)
|
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
|
|
/* Currently, we only support {PRE,POST}_MODIFY constructs
|
|
|
|
|
where a base register is {inc,dec}remented by the contents
|
|
|
|
|
of another register or by a constant value. Thus, these
|
|
|
|
|
operands must match. */
|
|
|
|
|
if (op0 != XEXP (op1, 0))
|
2000-08-29 23:14:57 +02:00
|
|
|
|
abort ();
|
2000-07-28 19:46:18 +02:00
|
|
|
|
|
|
|
|
|
/* Require index register (or constant). Let's just handle the
|
|
|
|
|
register case in the meantime... If the target allows
|
|
|
|
|
auto-modify by a constant then we could try replacing a pseudo
|
2000-08-29 23:14:57 +02:00
|
|
|
|
register with its equivalent constant where applicable. */
|
2000-07-28 19:46:18 +02:00
|
|
|
|
if (REG_P (XEXP (op1, 1)))
|
|
|
|
|
if (!REGNO_OK_FOR_INDEX_P (REGNO (XEXP (op1, 1))))
|
|
|
|
|
find_reloads_address_1 (mode, XEXP (op1, 1), 1, &XEXP (op1, 1),
|
|
|
|
|
opnum, type, ind_levels, insn);
|
|
|
|
|
|
|
|
|
|
if (REG_P (XEXP (op1, 0)))
|
|
|
|
|
{
|
2000-11-10 18:10:29 +01:00
|
|
|
|
int regno = REGNO (XEXP (op1, 0));
|
|
|
|
|
int reloadnum;
|
2000-07-28 19:46:18 +02:00
|
|
|
|
|
|
|
|
|
/* A register that is incremented cannot be constant! */
|
|
|
|
|
if (regno >= FIRST_PSEUDO_REGISTER
|
|
|
|
|
&& reg_equiv_constant[regno] != 0)
|
|
|
|
|
abort ();
|
|
|
|
|
|
|
|
|
|
/* Handle a register that is equivalent to a memory location
|
|
|
|
|
which cannot be addressed directly. */
|
|
|
|
|
if (reg_equiv_memory_loc[regno] != 0
|
|
|
|
|
&& (reg_equiv_address[regno] != 0
|
|
|
|
|
|| num_not_at_initial_offset))
|
|
|
|
|
{
|
|
|
|
|
rtx tem = make_memloc (XEXP (x, 0), regno);
|
|
|
|
|
|
|
|
|
|
if (reg_equiv_address[regno]
|
|
|
|
|
|| ! rtx_equal_p (tem, reg_equiv_mem[regno]))
|
|
|
|
|
{
|
|
|
|
|
/* First reload the memory location's address.
|
|
|
|
|
We can't use ADDR_TYPE (type) here, because we need to
|
|
|
|
|
write back the value after reading it, hence we actually
|
|
|
|
|
need two registers. */
|
2002-06-14 03:41:53 +02:00
|
|
|
|
find_reloads_address (GET_MODE (tem), &tem, XEXP (tem, 0),
|
2000-11-10 18:10:29 +01:00
|
|
|
|
&XEXP (tem, 0), opnum,
|
|
|
|
|
RELOAD_OTHER,
|
2000-07-28 19:46:18 +02:00
|
|
|
|
ind_levels, insn);
|
|
|
|
|
|
|
|
|
|
/* Then reload the memory location into a base
|
|
|
|
|
register. */
|
2000-11-10 18:10:29 +01:00
|
|
|
|
reloadnum = push_reload (tem, tem, &XEXP (x, 0),
|
2001-12-17 17:46:11 +01:00
|
|
|
|
&XEXP (op1, 0),
|
|
|
|
|
MODE_BASE_REG_CLASS (mode),
|
2000-11-10 18:10:29 +01:00
|
|
|
|
GET_MODE (x), GET_MODE (x), 0,
|
|
|
|
|
0, opnum, RELOAD_OTHER);
|
2000-12-22 02:25:23 +01:00
|
|
|
|
|
|
|
|
|
update_auto_inc_notes (this_insn, regno, reloadnum);
|
|
|
|
|
return 0;
|
2000-07-28 19:46:18 +02:00
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (reg_renumber[regno] >= 0)
|
|
|
|
|
regno = reg_renumber[regno];
|
|
|
|
|
|
|
|
|
|
/* We require a base register here... */
|
|
|
|
|
if (!REGNO_MODE_OK_FOR_BASE_P (regno, GET_MODE (x)))
|
|
|
|
|
{
|
2000-11-10 18:10:29 +01:00
|
|
|
|
reloadnum = push_reload (XEXP (op1, 0), XEXP (x, 0),
|
|
|
|
|
&XEXP (op1, 0), &XEXP (x, 0),
|
2001-12-17 17:46:11 +01:00
|
|
|
|
MODE_BASE_REG_CLASS (mode),
|
2000-11-10 18:10:29 +01:00
|
|
|
|
GET_MODE (x), GET_MODE (x), 0, 0,
|
|
|
|
|
opnum, RELOAD_OTHER);
|
|
|
|
|
|
2000-12-22 02:25:23 +01:00
|
|
|
|
update_auto_inc_notes (this_insn, regno, reloadnum);
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
2000-07-28 19:46:18 +02:00
|
|
|
|
}
|
|
|
|
|
else
|
2000-08-29 23:14:57 +02:00
|
|
|
|
abort ();
|
2000-07-28 19:46:18 +02:00
|
|
|
|
}
|
|
|
|
|
return 0;
|
|
|
|
|
|
1994-02-25 13:19:23 +01:00
|
|
|
|
case POST_INC:
|
|
|
|
|
case POST_DEC:
|
|
|
|
|
case PRE_INC:
|
|
|
|
|
case PRE_DEC:
|
1992-02-28 11:23:25 +01:00
|
|
|
|
if (GET_CODE (XEXP (x, 0)) == REG)
|
|
|
|
|
{
|
2001-10-11 05:16:15 +02:00
|
|
|
|
int regno = REGNO (XEXP (x, 0));
|
1992-02-28 11:23:25 +01:00
|
|
|
|
int value = 0;
|
|
|
|
|
rtx x_orig = x;
|
|
|
|
|
|
|
|
|
|
/* A register that is incremented cannot be constant! */
|
|
|
|
|
if (regno >= FIRST_PSEUDO_REGISTER
|
|
|
|
|
&& reg_equiv_constant[regno] != 0)
|
|
|
|
|
abort ();
|
|
|
|
|
|
|
|
|
|
/* Handle a register that is equivalent to a memory location
|
|
|
|
|
which cannot be addressed directly. */
|
Fix consistency problems with reg_equiv_{mem,address};
Improve reload inheritance;
* reload.c (reload_out_reg): New variable.
(loc_mentioned_in_p, remove_address_replacements): New functions.
(remove_replacements): Deleted.
(push_reload): Set reload_out_reg[i].
When merging, also set reload_{in,out}_reg[i], and remove
duplicate address reloads.
(combine_reloads): Copy reload_out_reg[i].
(find_reloads): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
Include *recog_operand_loc in commutativity operand changes.
Generate optional output reloads.
Delete reference to n_memlocs. Don't set *recog_operand_loc before
processing operands. Call make_memloc in reg_equiv_address code.
Set *recog_operand_loc only after processing operands, and only
if replace is true. Return a value.
When changing address reload types for operands that didn't get
reloaded, use RELOAD_FOR_OPADDR_ADDRESS for
RELOAD_FOR_INPADDR_ADDRESS / RELOAD_FOR_OUTADDR_ADDRESS reloads.
Don't emit USEs for pseudo SUBREGs when not replacing.
(find_reloads_address): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
(find_reloads_toplev): Likewise.
Call make_memloc in reg_equiv_address code.
(debug_reload_to_stream): Add code to output reload_out_reg.
(make_memloc): Delete local variable i, ifdefed out code, and
references to memlocs and n_memlocs.
(memlocs, n_memlocs): Delete.
(push_secondary_reload): Clear reload_out_reg.
(find_reloads_address_1): Provide memrefloc argument to all calls
to find_reloads_address.
In AUTO_INC code, handle non-directly addressable equivalences properly.
* reload.h (reload_out_reg, num_not_at_initial_offset): Declare.
(find_reloads): Add return type.
(remove_address_replacements, deallocate_reload_reg): Declare.
* reload1.c (num_not_at_initial_offset): No longer static.
(delete_address_reloads, delete_address_reloads_1): Likewise.
(deallocate_reload_reg): New function.
(spill_reg_stored_to): New array.
(eliminate_regs): Don't substitute from reg_equiv_memory_loc.
(eliminate_regs_in_insn): Move assignments of previous_offset and
max_offset fields, and recalculation of num_not_at_initial_offset
into new static function:
(update_eliminable_offsets) .
(reload_as_needed): Call update_eliminable_offsetss after calling
find_reloads.
Call forget_old_reloads_1 with contents of reloaded auto_inc
expressions if the actual addressing can't be changed to match the
auto_inc.
(choose_reload_regs): For inheritance, replace
reload_reg_free_before_p test with reload_reg_ions.
(emit_reload_insns): If reload_in is a MEM, set OLD to
reload_in_reg[j].
Don't reload directly from oldequiv; if it's a pseudo with a
stack slot, use reload_in[j].
Check that reload_in_reg[j] is a MEM before replacing reload_in
from reg_reloaded_contents.
Include non-spill registers in reload inheritance processing.
Also try to use reload_out_reg to set spill_reg_store /
reg_last_reload_reg.
In code to set new_spill_reg_store, use single_set to find out if
there is a single set.
Add code that allows to delete optional output reloads.
Add code to allow deletion of output reloads that use no spill reg.
At the end, set reload_override_in to oldequiv.
Also call delete_output_reload if reload_out_reg is equal to old
in oldequiv code.
Add code to call delete_output_reload for stores with no matching load.
Set / use spill_reg_stored_to.
Handle case where secondary output reload uses a temporary, but
actual store isn't found.
When looking for a store of a value not loaded in order to call
delete_output_reload, count_occurences should return 0 for no
loads; but discount inherited input reloadill_reg_stored_to.
Do checks for extra uses of REG. Changed all
callers.
Use delete_address_reloads.
(reload): Take return value of find_reloads into account.
If a no-op set needs more than one reload, delete it.
(reload_reg_free_before_p): RELOAD_FOR_INPUT
can ignore RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS
for the same operand.
(clear_reload_reg_in_use): Check for other reloads that keep a
register in use.
(reload_reg_free_for_value_p): handle RELOAD_FOR_OPERAND_ADDRESS /
RELOAD_FOR_OPADDR_ADDR.
Take into account when an address address reload is only needed
for the address reload we are considering.
(count_occurrences): Use rtx_equal_p for MEMs.
(inc_for_reload): Return instruction that stores into RELOADREG.
New argument two, IN, and rtx. Changed all callers.
(calculate_needs_all_insns, reload_as_needed):
Don't clear after_call for a CLOBBER.
Keep track of how many hard registers need to be copied from
after_call, and don't clear after_call before we have seen
that much copies, or we see a different instruction.
From-SVN: r23143
1998-10-16 21:54:38 +02:00
|
|
|
|
if (reg_equiv_memory_loc[regno] != 0
|
|
|
|
|
&& (reg_equiv_address[regno] != 0 || num_not_at_initial_offset))
|
1992-02-28 11:23:25 +01:00
|
|
|
|
{
|
|
|
|
|
rtx tem = make_memloc (XEXP (x, 0), regno);
|
Fix consistency problems with reg_equiv_{mem,address};
Improve reload inheritance;
* reload.c (reload_out_reg): New variable.
(loc_mentioned_in_p, remove_address_replacements): New functions.
(remove_replacements): Deleted.
(push_reload): Set reload_out_reg[i].
When merging, also set reload_{in,out}_reg[i], and remove
duplicate address reloads.
(combine_reloads): Copy reload_out_reg[i].
(find_reloads): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
Include *recog_operand_loc in commutativity operand changes.
Generate optional output reloads.
Delete reference to n_memlocs. Don't set *recog_operand_loc before
processing operands. Call make_memloc in reg_equiv_address code.
Set *recog_operand_loc only after processing operands, and only
if replace is true. Return a value.
When changing address reload types for operands that didn't get
reloaded, use RELOAD_FOR_OPADDR_ADDRESS for
RELOAD_FOR_INPADDR_ADDRESS / RELOAD_FOR_OUTADDR_ADDRESS reloads.
Don't emit USEs for pseudo SUBREGs when not replacing.
(find_reloads_address): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
(find_reloads_toplev): Likewise.
Call make_memloc in reg_equiv_address code.
(debug_reload_to_stream): Add code to output reload_out_reg.
(make_memloc): Delete local variable i, ifdefed out code, and
references to memlocs and n_memlocs.
(memlocs, n_memlocs): Delete.
(push_secondary_reload): Clear reload_out_reg.
(find_reloads_address_1): Provide memrefloc argument to all calls
to find_reloads_address.
In AUTO_INC code, handle non-directly addressable equivalences properly.
* reload.h (reload_out_reg, num_not_at_initial_offset): Declare.
(find_reloads): Add return type.
(remove_address_replacements, deallocate_reload_reg): Declare.
* reload1.c (num_not_at_initial_offset): No longer static.
(delete_address_reloads, delete_address_reloads_1): Likewise.
(deallocate_reload_reg): New function.
(spill_reg_stored_to): New array.
(eliminate_regs): Don't substitute from reg_equiv_memory_loc.
(eliminate_regs_in_insn): Move assignments of previous_offset and
max_offset fields, and recalculation of num_not_at_initial_offset
into new static function:
(update_eliminable_offsets) .
(reload_as_needed): Call update_eliminable_offsetss after calling
find_reloads.
Call forget_old_reloads_1 with contents of reloaded auto_inc
expressions if the actual addressing can't be changed to match the
auto_inc.
(choose_reload_regs): For inheritance, replace
reload_reg_free_before_p test with reload_reg_ions.
(emit_reload_insns): If reload_in is a MEM, set OLD to
reload_in_reg[j].
Don't reload directly from oldequiv; if it's a pseudo with a
stack slot, use reload_in[j].
Check that reload_in_reg[j] is a MEM before replacing reload_in
from reg_reloaded_contents.
Include non-spill registers in reload inheritance processing.
Also try to use reload_out_reg to set spill_reg_store /
reg_last_reload_reg.
In code to set new_spill_reg_store, use single_set to find out if
there is a single set.
Add code that allows to delete optional output reloads.
Add code to allow deletion of output reloads that use no spill reg.
At the end, set reload_override_in to oldequiv.
Also call delete_output_reload if reload_out_reg is equal to old
in oldequiv code.
Add code to call delete_output_reload for stores with no matching load.
Set / use spill_reg_stored_to.
Handle case where secondary output reload uses a temporary, but
actual store isn't found.
When looking for a store of a value not loaded in order to call
delete_output_reload, count_occurences should return 0 for no
loads; but discount inherited input reloadill_reg_stored_to.
Do checks for extra uses of REG. Changed all
callers.
Use delete_address_reloads.
(reload): Take return value of find_reloads into account.
If a no-op set needs more than one reload, delete it.
(reload_reg_free_before_p): RELOAD_FOR_INPUT
can ignore RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS
for the same operand.
(clear_reload_reg_in_use): Check for other reloads that keep a
register in use.
(reload_reg_free_for_value_p): handle RELOAD_FOR_OPERAND_ADDRESS /
RELOAD_FOR_OPADDR_ADDR.
Take into account when an address address reload is only needed
for the address reload we are considering.
(count_occurrences): Use rtx_equal_p for MEMs.
(inc_for_reload): Return instruction that stores into RELOADREG.
New argument two, IN, and rtx. Changed all callers.
(calculate_needs_all_insns, reload_as_needed):
Don't clear after_call for a CLOBBER.
Keep track of how many hard registers need to be copied from
after_call, and don't clear after_call before we have seen
that much copies, or we see a different instruction.
From-SVN: r23143
1998-10-16 21:54:38 +02:00
|
|
|
|
if (reg_equiv_address[regno]
|
|
|
|
|
|| ! rtx_equal_p (tem, reg_equiv_mem[regno]))
|
|
|
|
|
{
|
|
|
|
|
/* First reload the memory location's address.
|
|
|
|
|
We can't use ADDR_TYPE (type) here, because we need to
|
|
|
|
|
write back the value after reading it, hence we actually
|
|
|
|
|
need two registers. */
|
|
|
|
|
find_reloads_address (GET_MODE (tem), &tem, XEXP (tem, 0),
|
|
|
|
|
&XEXP (tem, 0), opnum, type,
|
|
|
|
|
ind_levels, insn);
|
|
|
|
|
/* Put this inside a new increment-expression. */
|
|
|
|
|
x = gen_rtx_fmt_e (GET_CODE (x), GET_MODE (x), tem);
|
|
|
|
|
/* Proceed to reload that, as if it contained a register. */
|
|
|
|
|
}
|
1992-02-28 11:23:25 +01:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* If we have a hard register that is ok as an index,
|
|
|
|
|
don't make a reload. If an autoincrement of a nice register
|
|
|
|
|
isn't "valid", it must be that no autoincrement is "valid".
|
|
|
|
|
If that is true and something made an autoincrement anyway,
|
|
|
|
|
this must be a special context where one is allowed.
|
|
|
|
|
(For example, a "push" instruction.)
|
|
|
|
|
We can't improve this address, so leave it alone. */
|
|
|
|
|
|
|
|
|
|
/* Otherwise, reload the autoincrement into a suitable hard reg
|
|
|
|
|
and record how much to increment by. */
|
|
|
|
|
|
|
|
|
|
if (reg_renumber[regno] >= 0)
|
|
|
|
|
regno = reg_renumber[regno];
|
|
|
|
|
if ((regno >= FIRST_PSEUDO_REGISTER
|
|
|
|
|
|| !(context ? REGNO_OK_FOR_INDEX_P (regno)
|
1997-01-14 21:38:34 +01:00
|
|
|
|
: REGNO_MODE_OK_FOR_BASE_P (regno, mode))))
|
1992-02-28 11:23:25 +01:00
|
|
|
|
{
|
1997-03-15 13:28:39 +01:00
|
|
|
|
int reloadnum;
|
|
|
|
|
|
|
|
|
|
/* If we can output the register afterwards, do so, this
|
|
|
|
|
saves the extra update.
|
|
|
|
|
We can do so if we have an INSN - i.e. no JUMP_INSN nor
|
|
|
|
|
CALL_INSN - and it does not set CC0.
|
|
|
|
|
But don't do this if we cannot directly address the
|
|
|
|
|
memory location, since this will make it harder to
|
1997-12-07 01:31:01 +01:00
|
|
|
|
reuse address reloads, and increases register pressure.
|
1997-03-15 13:28:39 +01:00
|
|
|
|
Also don't do this if we can probably update x directly. */
|
Fix consistency problems with reg_equiv_{mem,address};
Improve reload inheritance;
* reload.c (reload_out_reg): New variable.
(loc_mentioned_in_p, remove_address_replacements): New functions.
(remove_replacements): Deleted.
(push_reload): Set reload_out_reg[i].
When merging, also set reload_{in,out}_reg[i], and remove
duplicate address reloads.
(combine_reloads): Copy reload_out_reg[i].
(find_reloads): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
Include *recog_operand_loc in commutativity operand changes.
Generate optional output reloads.
Delete reference to n_memlocs. Don't set *recog_operand_loc before
processing operands. Call make_memloc in reg_equiv_address code.
Set *recog_operand_loc only after processing operands, and only
if replace is true. Return a value.
When changing address reload types for operands that didn't get
reloaded, use RELOAD_FOR_OPADDR_ADDRESS for
RELOAD_FOR_INPADDR_ADDRESS / RELOAD_FOR_OUTADDR_ADDRESS reloads.
Don't emit USEs for pseudo SUBREGs when not replacing.
(find_reloads_address): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
(find_reloads_toplev): Likewise.
Call make_memloc in reg_equiv_address code.
(debug_reload_to_stream): Add code to output reload_out_reg.
(make_memloc): Delete local variable i, ifdefed out code, and
references to memlocs and n_memlocs.
(memlocs, n_memlocs): Delete.
(push_secondary_reload): Clear reload_out_reg.
(find_reloads_address_1): Provide memrefloc argument to all calls
to find_reloads_address.
In AUTO_INC code, handle non-directly addressable equivalences properly.
* reload.h (reload_out_reg, num_not_at_initial_offset): Declare.
(find_reloads): Add return type.
(remove_address_replacements, deallocate_reload_reg): Declare.
* reload1.c (num_not_at_initial_offset): No longer static.
(delete_address_reloads, delete_address_reloads_1): Likewise.
(deallocate_reload_reg): New function.
(spill_reg_stored_to): New array.
(eliminate_regs): Don't substitute from reg_equiv_memory_loc.
(eliminate_regs_in_insn): Move assignments of previous_offset and
max_offset fields, and recalculation of num_not_at_initial_offset
into new static function:
(update_eliminable_offsets) .
(reload_as_needed): Call update_eliminable_offsetss after calling
find_reloads.
Call forget_old_reloads_1 with contents of reloaded auto_inc
expressions if the actual addressing can't be changed to match the
auto_inc.
(choose_reload_regs): For inheritance, replace
reload_reg_free_before_p test with reload_reg_ions.
(emit_reload_insns): If reload_in is a MEM, set OLD to
reload_in_reg[j].
Don't reload directly from oldequiv; if it's a pseudo with a
stack slot, use reload_in[j].
Check that reload_in_reg[j] is a MEM before replacing reload_in
from reg_reloaded_contents.
Include non-spill registers in reload inheritance processing.
Also try to use reload_out_reg to set spill_reg_store /
reg_last_reload_reg.
In code to set new_spill_reg_store, use single_set to find out if
there is a single set.
Add code that allows to delete optional output reloads.
Add code to allow deletion of output reloads that use no spill reg.
At the end, set reload_override_in to oldequiv.
Also call delete_output_reload if reload_out_reg is equal to old
in oldequiv code.
Add code to call delete_output_reload for stores with no matching load.
Set / use spill_reg_stored_to.
Handle case where secondary output reload uses a temporary, but
actual store isn't found.
When looking for a store of a value not loaded in order to call
delete_output_reload, count_occurences should return 0 for no
loads; but discount inherited input reloadill_reg_stored_to.
Do checks for extra uses of REG. Changed all
callers.
Use delete_address_reloads.
(reload): Take return value of find_reloads into account.
If a no-op set needs more than one reload, delete it.
(reload_reg_free_before_p): RELOAD_FOR_INPUT
can ignore RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS
for the same operand.
(clear_reload_reg_in_use): Check for other reloads that keep a
register in use.
(reload_reg_free_for_value_p): handle RELOAD_FOR_OPERAND_ADDRESS /
RELOAD_FOR_OPADDR_ADDR.
Take into account when an address address reload is only needed
for the address reload we are considering.
(count_occurrences): Use rtx_equal_p for MEMs.
(inc_for_reload): Return instruction that stores into RELOADREG.
New argument two, IN, and rtx. Changed all callers.
(calculate_needs_all_insns, reload_as_needed):
Don't clear after_call for a CLOBBER.
Keep track of how many hard registers need to be copied from
after_call, and don't clear after_call before we have seen
that much copies, or we see a different instruction.
From-SVN: r23143
1998-10-16 21:54:38 +02:00
|
|
|
|
rtx equiv = (GET_CODE (XEXP (x, 0)) == MEM
|
|
|
|
|
? XEXP (x, 0)
|
|
|
|
|
: reg_equiv_mem[regno]);
|
1997-03-15 13:28:39 +01:00
|
|
|
|
int icode = (int) add_optab->handlers[(int) Pmode].insn_code;
|
|
|
|
|
if (insn && GET_CODE (insn) == INSN && equiv
|
Fix consistency problems with reg_equiv_{mem,address};
Improve reload inheritance;
* reload.c (reload_out_reg): New variable.
(loc_mentioned_in_p, remove_address_replacements): New functions.
(remove_replacements): Deleted.
(push_reload): Set reload_out_reg[i].
When merging, also set reload_{in,out}_reg[i], and remove
duplicate address reloads.
(combine_reloads): Copy reload_out_reg[i].
(find_reloads): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
Include *recog_operand_loc in commutativity operand changes.
Generate optional output reloads.
Delete reference to n_memlocs. Don't set *recog_operand_loc before
processing operands. Call make_memloc in reg_equiv_address code.
Set *recog_operand_loc only after processing operands, and only
if replace is true. Return a value.
When changing address reload types for operands that didn't get
reloaded, use RELOAD_FOR_OPADDR_ADDRESS for
RELOAD_FOR_INPADDR_ADDRESS / RELOAD_FOR_OUTADDR_ADDRESS reloads.
Don't emit USEs for pseudo SUBREGs when not replacing.
(find_reloads_address): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
(find_reloads_toplev): Likewise.
Call make_memloc in reg_equiv_address code.
(debug_reload_to_stream): Add code to output reload_out_reg.
(make_memloc): Delete local variable i, ifdefed out code, and
references to memlocs and n_memlocs.
(memlocs, n_memlocs): Delete.
(push_secondary_reload): Clear reload_out_reg.
(find_reloads_address_1): Provide memrefloc argument to all calls
to find_reloads_address.
In AUTO_INC code, handle non-directly addressable equivalences properly.
* reload.h (reload_out_reg, num_not_at_initial_offset): Declare.
(find_reloads): Add return type.
(remove_address_replacements, deallocate_reload_reg): Declare.
* reload1.c (num_not_at_initial_offset): No longer static.
(delete_address_reloads, delete_address_reloads_1): Likewise.
(deallocate_reload_reg): New function.
(spill_reg_stored_to): New array.
(eliminate_regs): Don't substitute from reg_equiv_memory_loc.
(eliminate_regs_in_insn): Move assignments of previous_offset and
max_offset fields, and recalculation of num_not_at_initial_offset
into new static function:
(update_eliminable_offsets) .
(reload_as_needed): Call update_eliminable_offsetss after calling
find_reloads.
Call forget_old_reloads_1 with contents of reloaded auto_inc
expressions if the actual addressing can't be changed to match the
auto_inc.
(choose_reload_regs): For inheritance, replace
reload_reg_free_before_p test with reload_reg_ions.
(emit_reload_insns): If reload_in is a MEM, set OLD to
reload_in_reg[j].
Don't reload directly from oldequiv; if it's a pseudo with a
stack slot, use reload_in[j].
Check that reload_in_reg[j] is a MEM before replacing reload_in
from reg_reloaded_contents.
Include non-spill registers in reload inheritance processing.
Also try to use reload_out_reg to set spill_reg_store /
reg_last_reload_reg.
In code to set new_spill_reg_store, use single_set to find out if
there is a single set.
Add code that allows to delete optional output reloads.
Add code to allow deletion of output reloads that use no spill reg.
At the end, set reload_override_in to oldequiv.
Also call delete_output_reload if reload_out_reg is equal to old
in oldequiv code.
Add code to call delete_output_reload for stores with no matching load.
Set / use spill_reg_stored_to.
Handle case where secondary output reload uses a temporary, but
actual store isn't found.
When looking for a store of a value not loaded in order to call
delete_output_reload, count_occurences should return 0 for no
loads; but discount inherited input reloadill_reg_stored_to.
Do checks for extra uses of REG. Changed all
callers.
Use delete_address_reloads.
(reload): Take return value of find_reloads into account.
If a no-op set needs more than one reload, delete it.
(reload_reg_free_before_p): RELOAD_FOR_INPUT
can ignore RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS
for the same operand.
(clear_reload_reg_in_use): Check for other reloads that keep a
register in use.
(reload_reg_free_for_value_p): handle RELOAD_FOR_OPERAND_ADDRESS /
RELOAD_FOR_OPADDR_ADDR.
Take into account when an address address reload is only needed
for the address reload we are considering.
(count_occurrences): Use rtx_equal_p for MEMs.
(inc_for_reload): Return instruction that stores into RELOADREG.
New argument two, IN, and rtx. Changed all callers.
(calculate_needs_all_insns, reload_as_needed):
Don't clear after_call for a CLOBBER.
Keep track of how many hard registers need to be copied from
after_call, and don't clear after_call before we have seen
that much copies, or we see a different instruction.
From-SVN: r23143
1998-10-16 21:54:38 +02:00
|
|
|
|
&& memory_operand (equiv, GET_MODE (equiv))
|
1997-03-15 13:28:39 +01:00
|
|
|
|
#ifdef HAVE_cc0
|
|
|
|
|
&& ! sets_cc0_p (PATTERN (insn))
|
|
|
|
|
#endif
|
|
|
|
|
&& ! (icode != CODE_FOR_nothing
|
1999-09-12 14:46:08 +02:00
|
|
|
|
&& ((*insn_data[icode].operand[0].predicate)
|
|
|
|
|
(equiv, Pmode))
|
|
|
|
|
&& ((*insn_data[icode].operand[1].predicate)
|
|
|
|
|
(equiv, Pmode))))
|
1997-03-15 13:28:39 +01:00
|
|
|
|
{
|
2000-09-14 19:42:48 +02:00
|
|
|
|
/* We use the original pseudo for loc, so that
|
|
|
|
|
emit_reload_insns() knows which pseudo this
|
|
|
|
|
reload refers to and updates the pseudo rtx, not
|
|
|
|
|
its equivalent memory location, as well as the
|
|
|
|
|
corresponding entry in reg_last_reload_reg. */
|
|
|
|
|
loc = &XEXP (x_orig, 0);
|
1997-03-15 13:28:39 +01:00
|
|
|
|
x = XEXP (x, 0);
|
|
|
|
|
reloadnum
|
|
|
|
|
= push_reload (x, x, loc, loc,
|
2001-12-17 17:46:11 +01:00
|
|
|
|
(context ? INDEX_REG_CLASS :
|
|
|
|
|
MODE_BASE_REG_CLASS (mode)),
|
1999-09-01 16:30:35 +02:00
|
|
|
|
GET_MODE (x), GET_MODE (x), 0, 0,
|
|
|
|
|
opnum, RELOAD_OTHER);
|
1997-03-15 13:28:39 +01:00
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
reloadnum
|
2002-01-10 01:56:56 +01:00
|
|
|
|
= push_reload (x, NULL_RTX, loc, (rtx*) 0,
|
2001-12-17 17:46:11 +01:00
|
|
|
|
(context ? INDEX_REG_CLASS :
|
|
|
|
|
MODE_BASE_REG_CLASS (mode)),
|
1997-11-02 22:19:36 +01:00
|
|
|
|
GET_MODE (x), GET_MODE (x), 0, 0,
|
1997-03-15 13:28:39 +01:00
|
|
|
|
opnum, type);
|
1999-09-12 16:54:56 +02:00
|
|
|
|
rld[reloadnum].inc
|
1997-03-15 13:28:39 +01:00
|
|
|
|
= find_inc_amount (PATTERN (this_insn), XEXP (x_orig, 0));
|
1999-09-01 16:30:35 +02:00
|
|
|
|
|
1997-03-15 13:28:39 +01:00
|
|
|
|
value = 1;
|
|
|
|
|
}
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
2000-12-22 02:25:23 +01:00
|
|
|
|
update_auto_inc_notes (this_insn, REGNO (XEXP (x_orig, 0)),
|
|
|
|
|
reloadnum);
|
1992-02-28 11:23:25 +01:00
|
|
|
|
}
|
|
|
|
|
return value;
|
|
|
|
|
}
|
1994-02-25 13:19:23 +01:00
|
|
|
|
|
1992-02-28 11:23:25 +01:00
|
|
|
|
else if (GET_CODE (XEXP (x, 0)) == MEM)
|
|
|
|
|
{
|
|
|
|
|
/* This is probably the result of a substitution, by eliminate_regs,
|
|
|
|
|
of an equivalent address for a pseudo that was not allocated to a
|
|
|
|
|
hard register. Verify that the specified address is valid and
|
|
|
|
|
reload it into a register. */
|
1999-09-12 16:54:56 +02:00
|
|
|
|
/* Variable `tem' might or might not be used in FIND_REG_INC_NOTE. */
|
1999-01-18 07:17:31 +01:00
|
|
|
|
rtx tem ATTRIBUTE_UNUSED = XEXP (x, 0);
|
2001-10-11 05:16:15 +02:00
|
|
|
|
rtx link;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
int reloadnum;
|
|
|
|
|
|
|
|
|
|
/* Since we know we are going to reload this item, don't decrement
|
|
|
|
|
for the indirection level.
|
|
|
|
|
|
|
|
|
|
Note that this is actually conservative: it would be slightly
|
|
|
|
|
more efficient to use the value of SPILL_INDIRECT_LEVELS from
|
|
|
|
|
reload1.c here. */
|
1997-02-05 01:29:03 +01:00
|
|
|
|
/* We can't use ADDR_TYPE (type) here, because we need to
|
|
|
|
|
write back the value after reading it, hence we actually
|
|
|
|
|
need two registers. */
|
1992-02-28 11:23:25 +01:00
|
|
|
|
find_reloads_address (GET_MODE (x), &XEXP (x, 0),
|
|
|
|
|
XEXP (XEXP (x, 0), 0), &XEXP (XEXP (x, 0), 0),
|
1997-03-15 13:28:39 +01:00
|
|
|
|
opnum, type, ind_levels, insn);
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
2002-01-10 01:56:56 +01:00
|
|
|
|
reloadnum = push_reload (x, NULL_RTX, loc, (rtx*) 0,
|
2001-12-17 17:46:11 +01:00
|
|
|
|
(context ? INDEX_REG_CLASS :
|
|
|
|
|
MODE_BASE_REG_CLASS (mode)),
|
1993-03-29 13:27:52 +02:00
|
|
|
|
GET_MODE (x), VOIDmode, 0, 0, opnum, type);
|
1999-09-12 16:54:56 +02:00
|
|
|
|
rld[reloadnum].inc
|
1992-02-28 11:23:25 +01:00
|
|
|
|
= find_inc_amount (PATTERN (this_insn), XEXP (x, 0));
|
|
|
|
|
|
|
|
|
|
link = FIND_REG_INC_NOTE (this_insn, tem);
|
|
|
|
|
if (link != 0)
|
|
|
|
|
push_replacement (&XEXP (link, 0), reloadnum, VOIDmode);
|
|
|
|
|
|
|
|
|
|
return 1;
|
|
|
|
|
}
|
1994-02-25 13:19:23 +01:00
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
|
|
case MEM:
|
|
|
|
|
/* This is probably the result of a substitution, by eliminate_regs, of
|
|
|
|
|
an equivalent address for a pseudo that was not allocated to a hard
|
|
|
|
|
register. Verify that the specified address is valid and reload it
|
|
|
|
|
into a register.
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
1994-02-25 13:19:23 +01:00
|
|
|
|
Since we know we are going to reload this item, don't decrement for
|
|
|
|
|
the indirection level.
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
|
|
|
|
Note that this is actually conservative: it would be slightly more
|
|
|
|
|
efficient to use the value of SPILL_INDIRECT_LEVELS from
|
|
|
|
|
reload1.c here. */
|
|
|
|
|
|
|
|
|
|
find_reloads_address (GET_MODE (x), loc, XEXP (x, 0), &XEXP (x, 0),
|
1997-03-15 13:28:39 +01:00
|
|
|
|
opnum, ADDR_TYPE (type), ind_levels, insn);
|
2002-01-10 01:56:56 +01:00
|
|
|
|
push_reload (*loc, NULL_RTX, loc, (rtx*) 0,
|
2001-12-17 17:46:11 +01:00
|
|
|
|
(context ? INDEX_REG_CLASS : MODE_BASE_REG_CLASS (mode)),
|
1993-03-29 13:27:52 +02:00
|
|
|
|
GET_MODE (x), VOIDmode, 0, 0, opnum, type);
|
1992-02-28 11:23:25 +01:00
|
|
|
|
return 1;
|
|
|
|
|
|
1994-02-25 13:19:23 +01:00
|
|
|
|
case REG:
|
|
|
|
|
{
|
2001-10-11 05:16:15 +02:00
|
|
|
|
int regno = REGNO (x);
|
1994-02-25 13:19:23 +01:00
|
|
|
|
|
|
|
|
|
if (reg_equiv_constant[regno] != 0)
|
|
|
|
|
{
|
1998-10-27 23:38:40 +01:00
|
|
|
|
find_reloads_address_part (reg_equiv_constant[regno], loc,
|
2001-12-17 17:46:11 +01:00
|
|
|
|
(context ? INDEX_REG_CLASS :
|
|
|
|
|
MODE_BASE_REG_CLASS (mode)),
|
1994-02-25 13:19:23 +01:00
|
|
|
|
GET_MODE (x), opnum, type, ind_levels);
|
|
|
|
|
return 1;
|
|
|
|
|
}
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
|
|
|
|
#if 0 /* This might screw code in reload1.c to delete prior output-reload
|
|
|
|
|
that feeds this insn. */
|
1994-02-25 13:19:23 +01:00
|
|
|
|
if (reg_equiv_mem[regno] != 0)
|
|
|
|
|
{
|
2002-01-10 01:56:56 +01:00
|
|
|
|
push_reload (reg_equiv_mem[regno], NULL_RTX, loc, (rtx*) 0,
|
2001-12-17 17:46:11 +01:00
|
|
|
|
(context ? INDEX_REG_CLASS :
|
|
|
|
|
MODE_BASE_REG_CLASS (mode)),
|
1994-02-25 13:19:23 +01:00
|
|
|
|
GET_MODE (x), VOIDmode, 0, 0, opnum, type);
|
|
|
|
|
return 1;
|
|
|
|
|
}
|
1992-02-28 11:23:25 +01:00
|
|
|
|
#endif
|
|
|
|
|
|
Fix consistency problems with reg_equiv_{mem,address};
Improve reload inheritance;
* reload.c (reload_out_reg): New variable.
(loc_mentioned_in_p, remove_address_replacements): New functions.
(remove_replacements): Deleted.
(push_reload): Set reload_out_reg[i].
When merging, also set reload_{in,out}_reg[i], and remove
duplicate address reloads.
(combine_reloads): Copy reload_out_reg[i].
(find_reloads): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
Include *recog_operand_loc in commutativity operand changes.
Generate optional output reloads.
Delete reference to n_memlocs. Don't set *recog_operand_loc before
processing operands. Call make_memloc in reg_equiv_address code.
Set *recog_operand_loc only after processing operands, and only
if replace is true. Return a value.
When changing address reload types for operands that didn't get
reloaded, use RELOAD_FOR_OPADDR_ADDRESS for
RELOAD_FOR_INPADDR_ADDRESS / RELOAD_FOR_OUTADDR_ADDRESS reloads.
Don't emit USEs for pseudo SUBREGs when not replacing.
(find_reloads_address): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
(find_reloads_toplev): Likewise.
Call make_memloc in reg_equiv_address code.
(debug_reload_to_stream): Add code to output reload_out_reg.
(make_memloc): Delete local variable i, ifdefed out code, and
references to memlocs and n_memlocs.
(memlocs, n_memlocs): Delete.
(push_secondary_reload): Clear reload_out_reg.
(find_reloads_address_1): Provide memrefloc argument to all calls
to find_reloads_address.
In AUTO_INC code, handle non-directly addressable equivalences properly.
* reload.h (reload_out_reg, num_not_at_initial_offset): Declare.
(find_reloads): Add return type.
(remove_address_replacements, deallocate_reload_reg): Declare.
* reload1.c (num_not_at_initial_offset): No longer static.
(delete_address_reloads, delete_address_reloads_1): Likewise.
(deallocate_reload_reg): New function.
(spill_reg_stored_to): New array.
(eliminate_regs): Don't substitute from reg_equiv_memory_loc.
(eliminate_regs_in_insn): Move assignments of previous_offset and
max_offset fields, and recalculation of num_not_at_initial_offset
into new static function:
(update_eliminable_offsets) .
(reload_as_needed): Call update_eliminable_offsetss after calling
find_reloads.
Call forget_old_reloads_1 with contents of reloaded auto_inc
expressions if the actual addressing can't be changed to match the
auto_inc.
(choose_reload_regs): For inheritance, replace
reload_reg_free_before_p test with reload_reg_ions.
(emit_reload_insns): If reload_in is a MEM, set OLD to
reload_in_reg[j].
Don't reload directly from oldequiv; if it's a pseudo with a
stack slot, use reload_in[j].
Check that reload_in_reg[j] is a MEM before replacing reload_in
from reg_reloaded_contents.
Include non-spill registers in reload inheritance processing.
Also try to use reload_out_reg to set spill_reg_store /
reg_last_reload_reg.
In code to set new_spill_reg_store, use single_set to find out if
there is a single set.
Add code that allows to delete optional output reloads.
Add code to allow deletion of output reloads that use no spill reg.
At the end, set reload_override_in to oldequiv.
Also call delete_output_reload if reload_out_reg is equal to old
in oldequiv code.
Add code to call delete_output_reload for stores with no matching load.
Set / use spill_reg_stored_to.
Handle case where secondary output reload uses a temporary, but
actual store isn't found.
When looking for a store of a value not loaded in order to call
delete_output_reload, count_occurences should return 0 for no
loads; but discount inherited input reloadill_reg_stored_to.
Do checks for extra uses of REG. Changed all
callers.
Use delete_address_reloads.
(reload): Take return value of find_reloads into account.
If a no-op set needs more than one reload, delete it.
(reload_reg_free_before_p): RELOAD_FOR_INPUT
can ignore RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS
for the same operand.
(clear_reload_reg_in_use): Check for other reloads that keep a
register in use.
(reload_reg_free_for_value_p): handle RELOAD_FOR_OPERAND_ADDRESS /
RELOAD_FOR_OPADDR_ADDR.
Take into account when an address address reload is only needed
for the address reload we are considering.
(count_occurrences): Use rtx_equal_p for MEMs.
(inc_for_reload): Return instruction that stores into RELOADREG.
New argument two, IN, and rtx. Changed all callers.
(calculate_needs_all_insns, reload_as_needed):
Don't clear after_call for a CLOBBER.
Keep track of how many hard registers need to be copied from
after_call, and don't clear after_call before we have seen
that much copies, or we see a different instruction.
From-SVN: r23143
1998-10-16 21:54:38 +02:00
|
|
|
|
if (reg_equiv_memory_loc[regno]
|
|
|
|
|
&& (reg_equiv_address[regno] != 0 || num_not_at_initial_offset))
|
1994-02-25 13:19:23 +01:00
|
|
|
|
{
|
Fix consistency problems with reg_equiv_{mem,address};
Improve reload inheritance;
* reload.c (reload_out_reg): New variable.
(loc_mentioned_in_p, remove_address_replacements): New functions.
(remove_replacements): Deleted.
(push_reload): Set reload_out_reg[i].
When merging, also set reload_{in,out}_reg[i], and remove
duplicate address reloads.
(combine_reloads): Copy reload_out_reg[i].
(find_reloads): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
Include *recog_operand_loc in commutativity operand changes.
Generate optional output reloads.
Delete reference to n_memlocs. Don't set *recog_operand_loc before
processing operands. Call make_memloc in reg_equiv_address code.
Set *recog_operand_loc only after processing operands, and only
if replace is true. Return a value.
When changing address reload types for operands that didn't get
reloaded, use RELOAD_FOR_OPADDR_ADDRESS for
RELOAD_FOR_INPADDR_ADDRESS / RELOAD_FOR_OUTADDR_ADDRESS reloads.
Don't emit USEs for pseudo SUBREGs when not replacing.
(find_reloads_address): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
(find_reloads_toplev): Likewise.
Call make_memloc in reg_equiv_address code.
(debug_reload_to_stream): Add code to output reload_out_reg.
(make_memloc): Delete local variable i, ifdefed out code, and
references to memlocs and n_memlocs.
(memlocs, n_memlocs): Delete.
(push_secondary_reload): Clear reload_out_reg.
(find_reloads_address_1): Provide memrefloc argument to all calls
to find_reloads_address.
In AUTO_INC code, handle non-directly addressable equivalences properly.
* reload.h (reload_out_reg, num_not_at_initial_offset): Declare.
(find_reloads): Add return type.
(remove_address_replacements, deallocate_reload_reg): Declare.
* reload1.c (num_not_at_initial_offset): No longer static.
(delete_address_reloads, delete_address_reloads_1): Likewise.
(deallocate_reload_reg): New function.
(spill_reg_stored_to): New array.
(eliminate_regs): Don't substitute from reg_equiv_memory_loc.
(eliminate_regs_in_insn): Move assignments of previous_offset and
max_offset fields, and recalculation of num_not_at_initial_offset
into new static function:
(update_eliminable_offsets) .
(reload_as_needed): Call update_eliminable_offsetss after calling
find_reloads.
Call forget_old_reloads_1 with contents of reloaded auto_inc
expressions if the actual addressing can't be changed to match the
auto_inc.
(choose_reload_regs): For inheritance, replace
reload_reg_free_before_p test with reload_reg_ions.
(emit_reload_insns): If reload_in is a MEM, set OLD to
reload_in_reg[j].
Don't reload directly from oldequiv; if it's a pseudo with a
stack slot, use reload_in[j].
Check that reload_in_reg[j] is a MEM before replacing reload_in
from reg_reloaded_contents.
Include non-spill registers in reload inheritance processing.
Also try to use reload_out_reg to set spill_reg_store /
reg_last_reload_reg.
In code to set new_spill_reg_store, use single_set to find out if
there is a single set.
Add code that allows to delete optional output reloads.
Add code to allow deletion of output reloads that use no spill reg.
At the end, set reload_override_in to oldequiv.
Also call delete_output_reload if reload_out_reg is equal to old
in oldequiv code.
Add code to call delete_output_reload for stores with no matching load.
Set / use spill_reg_stored_to.
Handle case where secondary output reload uses a temporary, but
actual store isn't found.
When looking for a store of a value not loaded in order to call
delete_output_reload, count_occurences should return 0 for no
loads; but discount inherited input reloadill_reg_stored_to.
Do checks for extra uses of REG. Changed all
callers.
Use delete_address_reloads.
(reload): Take return value of find_reloads into account.
If a no-op set needs more than one reload, delete it.
(reload_reg_free_before_p): RELOAD_FOR_INPUT
can ignore RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS
for the same operand.
(clear_reload_reg_in_use): Check for other reloads that keep a
register in use.
(reload_reg_free_for_value_p): handle RELOAD_FOR_OPERAND_ADDRESS /
RELOAD_FOR_OPADDR_ADDR.
Take into account when an address address reload is only needed
for the address reload we are considering.
(count_occurrences): Use rtx_equal_p for MEMs.
(inc_for_reload): Return instruction that stores into RELOADREG.
New argument two, IN, and rtx. Changed all callers.
(calculate_needs_all_insns, reload_as_needed):
Don't clear after_call for a CLOBBER.
Keep track of how many hard registers need to be copied from
after_call, and don't clear after_call before we have seen
that much copies, or we see a different instruction.
From-SVN: r23143
1998-10-16 21:54:38 +02:00
|
|
|
|
rtx tem = make_memloc (x, regno);
|
|
|
|
|
if (reg_equiv_address[regno] != 0
|
|
|
|
|
|| ! rtx_equal_p (tem, reg_equiv_mem[regno]))
|
|
|
|
|
{
|
|
|
|
|
x = tem;
|
|
|
|
|
find_reloads_address (GET_MODE (x), &x, XEXP (x, 0),
|
|
|
|
|
&XEXP (x, 0), opnum, ADDR_TYPE (type),
|
|
|
|
|
ind_levels, insn);
|
|
|
|
|
}
|
1994-02-25 13:19:23 +01:00
|
|
|
|
}
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
1994-02-25 13:19:23 +01:00
|
|
|
|
if (reg_renumber[regno] >= 0)
|
|
|
|
|
regno = reg_renumber[regno];
|
|
|
|
|
|
|
|
|
|
if ((regno >= FIRST_PSEUDO_REGISTER
|
|
|
|
|
|| !(context ? REGNO_OK_FOR_INDEX_P (regno)
|
1997-01-14 21:38:34 +01:00
|
|
|
|
: REGNO_MODE_OK_FOR_BASE_P (regno, mode))))
|
1994-02-25 13:19:23 +01:00
|
|
|
|
{
|
2002-01-10 01:56:56 +01:00
|
|
|
|
push_reload (x, NULL_RTX, loc, (rtx*) 0,
|
2001-12-17 17:46:11 +01:00
|
|
|
|
(context ? INDEX_REG_CLASS : MODE_BASE_REG_CLASS (mode)),
|
1994-02-25 13:19:23 +01:00
|
|
|
|
GET_MODE (x), VOIDmode, 0, 0, opnum, type);
|
|
|
|
|
return 1;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* If a register appearing in an address is the subject of a CLOBBER
|
|
|
|
|
in this insn, reload it into some other register to be safe.
|
|
|
|
|
The CLOBBER is supposed to make the register unavailable
|
|
|
|
|
from before this insn to after it. */
|
2000-11-10 18:10:29 +01:00
|
|
|
|
if (regno_clobbered_p (regno, this_insn, GET_MODE (x), 0))
|
1994-02-25 13:19:23 +01:00
|
|
|
|
{
|
2002-01-10 01:56:56 +01:00
|
|
|
|
push_reload (x, NULL_RTX, loc, (rtx*) 0,
|
2001-12-17 17:46:11 +01:00
|
|
|
|
(context ? INDEX_REG_CLASS : MODE_BASE_REG_CLASS (mode)),
|
1994-02-25 13:19:23 +01:00
|
|
|
|
GET_MODE (x), VOIDmode, 0, 0, opnum, type);
|
|
|
|
|
return 1;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
|
|
case SUBREG:
|
1995-07-29 15:43:27 +02:00
|
|
|
|
if (GET_CODE (SUBREG_REG (x)) == REG)
|
1992-02-28 11:23:25 +01:00
|
|
|
|
{
|
1995-07-29 15:43:27 +02:00
|
|
|
|
/* If this is a SUBREG of a hard register and the resulting register
|
|
|
|
|
is of the wrong class, reload the whole SUBREG. This avoids
|
|
|
|
|
needless copies if SUBREG_REG is multi-word. */
|
|
|
|
|
if (REGNO (SUBREG_REG (x)) < FIRST_PSEUDO_REGISTER)
|
|
|
|
|
{
|
Use byte offsets in SUBREGs instead of words.
2001-04-03 Jakub Jelinek <jakub@redhat.com>
David S. Miller <davem@pierdol.cobaltmicro.com>
Andrew MacLeod <amacleod@redhat.com>
Use byte offsets in SUBREGs instead of words.
* alias.c (nonlocal_mentioned_p): Use subreg_regno function.
* caller-save.c (mark_set_regs): Change callers of subreg_hard_regno
to pass new argument.
(add_stored_regs): Use subreg_regno_offset function.
* calls.c (expand_call): For non-paradoxical SUBREG take endianess
into account.
(precompute_arguments): Use gen_lowpart_SUBREG.
* combine.c (try_combine): Replace explicit XEXP with SUBREG_REG.
(combine_simplify_rtx): Rework to use SUBREG_BYTE.
(simplify_set): Rework to use SUBREG_BYTE.
(expand_field_assignment): Use SUBREG_BYTE.
(make_extraction): Use SUBREG_BYTE.
(if_then_else_cond): Use SUBREG_BYTE.
(apply_distributive_law): Use SUBREG_BYTE and fixup subreg comments.
(gen_lowpart_for_combine): Compute full byte offset.
* cse.c (mention_regs): Use SUBREG_BYTE.
(remove_invalid_subreg_refs): Rework to use SUBREG_BYTE.
(canon_hash): Use SUBREG_BYTE.
(fold_rtx): Pass SUBREG_BYTE div UNITS_PER_WORD to operand_subword.
(gen_lowpart_if_possible): Formatting.
* dbxout.c (dbxout_symbol_location): Compute SUBREG hard regnos
correctly.
* dwarf2out.c (is_pseudo_reg): Fixup explicit XEXP into SUBREG_REG
(mem_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
(loc_descriptor): Fixup explicit XEXP into SUBREG_REG
* dwarfout.c (is_pseudo_reg): Fixup explicit XEXP into SUBREG_REG
(output_mem_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
(output_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
* emit-rtl.c (gen_rtx_SUBREG): New function, used to verify
certain invariants about SUBREGs the compiler creates.
(gen_lowpart_SUBREG): New function.
(subreg_hard_regno): New function to get the final register number.
(gen_lowpart_common): Use SUBREG_BYTE.
(gen_imagpart): Spacing nits.
(subreg_realpart_p): Use SUBREG_BYTE.
(gen_highpart): Use SUBREG_BYTE.
(subreg_lowpart_p): Always compute endian corrected goal offset,
even at the byte level, then compare against that.
(constant_subword): New function, pulled out all constant cases
from operand_subword and changed second argument name to offset.
(operand_subword): Detect non REG/SUBREG/CONCAT/MEM cases early
and call constant_subword to do the work. Return const0_rtx if
looking for a word outside of OP.
(operand_subword_force): Change second arg name to offset.
* expmed.c (store_bit_field): Use SUBREG_BYTE.
(store_split_bit_field): Use SUBREG_BYTE.
(extract_bit_field): Use SUBREG_BYTE.
(extract_split_bit_field): Use SUBREG_BYTE.
(expand_shift): Use SUBREG_BYTE.
* expr.c (store_expr, expand_expr): Use gen_lowpart_SUBREG.
* final.c (alter_subreg) Use subreg_hard_regno and SUBREG_BYTE.
* flow.c (set_noop_p): Use SUBREG_BYTE.
(mark_set_1): Remove ALTER_HARD_SUBREG. Use subreg_regno_offset instead.
* function.c (fixup_var_refs_1): Fixup explicit XEXP into a SUBREG_REG.
(fixup_memory_subreg): Use SUBREG_BYTE and remove byte endian
correction code.
(optimize_bit_field): Use SUBREG_BYTE.
(purge_addressof_1): Use SUBREG_BYTE.
(purge_single_hard_subreg_set): Use subreg_regno_offset function.
(assign_params): Mark arguments SUBREG_PROMOTED_VAR_P if they are
actually promoted by the caller and PROMOTE_FOR_CALLS_ONLY is true.
* gengenrtl.c (special_rtx): Add SUBREG.
* global.c (mark_reg_store): Use SUBREG_BYTE.
(set_preference): Rework to use subreg_regno_offset and SUBREG_BYTE.
* ifcvt (noce_emit_move_insn): Use SUBREG_BYTE.
* integrate.c (copy_rtx_and_substitute): Use SUBREG_BYTE and make sure
final byte offset is congruent to subreg's mode size.
(subst_constants): Use SUBREG_BYTE.
(mark_stores): Use subreg_regno_offset function.
* jump.c (rtx_renumbered_equal_p, true_regnum): Use subreg_regno_offset
function and SUBREG_BYTE.
* local-alloc.c (combine_regs): Use subreg_regno_offset function.
(reg_is_born): Use subreg_hard_regno.
* recog.c (valid_replace_rtx_1): Use SUBREG_BYTE and remove byte
endian correction code. Don't combine subregs unless resulting
offset aligns with type. Fix subreg constant extraction for DImode.
Simplify SUBREG of VOIDmode CONST_DOUBLE.
(general_operand): Remove dead mode_altering_drug code.
(indirect_operand): Use SUBREG_BYTE.
(constrain_operands): Use subreg_regno_offset function.
* reg-stack.c (get_true_reg): Use subreg_regno_offset function.
* regmove.c (regmove_optimize): Use SUBREG_BYTE.
(optimize_reg_copy_3): Use gen_lowpart_SUBREG.
* regs.h (REG_SIZE): Allow target to override.
(REGMODE_NATURAL_SIZE): New macro which target can override.
* reload.c (reload_inner_reg_of_subreg): subreg_regno should be used
on the entire subreg rtx.
(push_reload): Use SUBREG_BYTE in comments and code.
(find_dummy_reload): Use subreg_regno_offset. Only adjust offsets
for hard registers inside subregs.
(operands_match_p): Use subreg_regno_offset.
(find_reloads): Use SUBREG_BYTE and only advance offset for subregs
containing hard regs.
(find_reload_toplev): Use SUBREG_BYTE. Remove byte endian
corrections when fixing up MEM subregs.
(find_reloads_address_1): Use SUBREG_BYTE, subreg_regno, and
subreg_regno_offset where appropriate.
(find_reloads_subreg_address): Use SUBREG_BYTE. Remove
byte endian corrections when fixing up MEM subregs.
(subst_reloads): When combining two subregs, make sure final
offset is congruent to subreg's mode size.
(find_replacement): Use SUBREG_BYTE and subreg_regno_offset.
(refers_to_regno_for_reload_p): Use subreg_regno.
(reg_overlap_mentioned_for_reload_p): Use subreg_regno_offset.
* reload1.c (eliminate_regs) Use SUBREG_BYTE. Remove byte endian
correction code for memory subreg fixups.
(forget_old_reload_1): Use subreg_regno_offset.
(choose_reload_regs): Use subreg_regno.
(emit_input_reload_insns): Use SUBREG_BYTE.
(reload_combine_note_store): Use subreg_regno_offset.
(move2add_note_store): Use subreg_regno_offset.
* resource.c (update_live_status, mark_referenced_resources): Use
subreg_regno function.
(mark_set_resources): Use subreg_regno function.
* rtl.h (SUBREG_WORD): Rename to SUBREG_BYTE.
(subreg_regno_offset, subreg_regno): Define prototypes.
(subreg_hard_regno, constant_subword, gen_rtx_SUBREG): Newi functions.
(gen_lowpart_SUBREG): Add prototype.
* rtl.texi (subreg): Update to reflect new byte offset representation.
Add mentioning of the effect that BYTES_BIG_ENDIAN has on subregs now.
* rtlanal.c (refers_to_regno_p): Use subreg_regno.
(reg_overlap_mentioned_p): Use subreg_regno.
(replace_regs); Make sure final offset of combined subreg is
congruent to size of subreg's mode.
(subreg_regno_offset): New function.
(subreg_regno): New function.
* sched-vis.c (print_value): Change SUBREG_WORD to SUBREG_BYTE.
* sdbout.c (sdbout_symbol): Compute offset using alter_subreg.
* stmt.c (expand_anon_union_decl): Use gen_lowpart_SUBREG.
* tm.texi (ALTER_HARD_SUBREG): Remove, it is now dead.
(SUBREG_REGNO_OFFSET): Describe SUBREG_REGNO_OFFSET overrides.
* config/a29k/a29k.c (gpc_reg_operand): Use subreg_regno.
(a29k_get_reloaded_address): Use SUBREG_BYTE.
(print_operand): Use SUBREG_BYTE.
* config/alpha/alpha.c (print_operand_address): Use SUBREG_BYTE.
* config/arm/arm.c (arm_reload_in_hi): Use SUBREG_BYTE.
(arm_reload_out_hi): Use SUBREG_BYTE.
* config/d30v/d30v.c (d30v_split_double): Use subreg_regno_offset
instead of SUBREG_WORD.
(d30v_print_operand_memory_reference): Use subreg_regno_offset.
* config/dsp16xx/dsp16xx.md (extendqihi2, zero_extendqihi2): Fix
SUBREG creation to use byte offset.
* config/h8300/h8300.md (Unnamed HImode zero extraction and 16bit
inverted load insns): Fix explicit rtl subregs to use byte
offsets.
* config/i370/i370.md (cmpstrsi, movstrsi, mulsi3, divsi3,
udivsi3, umodsi3): Generate SUBREGs with byte offsets.
* config/i860/i860.c (single_insn_src_p): Use SUBREG_BYTE.
* config/i860/i860.md (mulsi3_big): Fixup explicit SUBREGs in rtl
to use byte offsets.
(unnamed fmlow.dd insn): Fixup SUBREGS to use byte offsets.
* config/i960/i960.md (extendhisi2): Generate SUBREGs with byte
offsets, also make sure it is congruent to SUBREG's mode size.
(extendqisi2, extendqihi2, zero_extendhisi2, zero_extendqisi2,
unnamed ldob insn): Generate SUBREGs with byte offset.
(zero_extendqihi2): SUBREG's are byte offsets.
* config/m68hc11/m68hc11.c (m68hc11_gen_lowpart): Use SUBREG_BYTE.
(m68hc11_gen_highpart): Use SUBREG_BYTE.
* config/m68k/m68k.md (zero_extendhisi2, zero_extendqihi2,
zero-extendqisi2): Generate SUBREGs with byte offset.
(umulsidi3, mulsidi3, subreghi1ashrdi_const32,
subregsi1ashrdi_const32, subreg1lshrdi_const32): Fixup explicit
subregs in rtl to use byte offsets.
* config/m88k/m88k.md (extendsidi2): fixup subregs to use byte offset.
* config/mips/mips.c (mips_move_1word): Use subreg_regno_offset.
(mips_move_2words): Use subreg_regno_offset.
(mips_secondary_reload_class): Use subreg_regno_offset.
* config/mips/mips.md (DImode plus, minus, move, and logical op
splits): Fixup explicit subregs in rtl to use byte offsets.
* config/mn10200/mn10200.c (print_operand): Use subreg_regno function.
* config/mn10300/mn10300.c (print_operand): Use subreg_regno function.
* config/ns32k/ns32k.md (udivmoddisi4): Fix explicit subregs in
rtl to use byte offsets.
* config/pa/pa.c (emit_move_sequence): Use SUBREG_BYTE.
* config/pa/pa.md (floatunssisf2, floatunssidf2, mulsi3): fix explicit
subregs to use byte offsets.
* config/pdp11/pdp11.md (zero_extendhisi2, modhi3, modhi3+1):
Fixup explicit subregs in rtl to use byte offsets.
* config/romp/romp.c (memory_offset_in_range_p): Use SUBREG_BYTE
and remove byte endian correction code.
* config/sh/sh.c (output_movedouble): Use subreg_regno.
(gen_ashift_hi): Use SUBREG_BYTE.
(regs_used): Use subreg_regno_offset.
(machine_dependent_reorg): Use subreg_regno_offset.
* config/sh/sh.h (INDEX_REGISTER_RTX_P): Use SUBREG_BYTE.
* config/sh/sh.md (DImode and DFmode move splits): Use subreg_regno.
(movdf_i4): Subregs are byte offsets now.
* config/sparc/sparc.c (ultra_find_type): Use SUBREG_BYTE.
* config/sparc/sparc.h (ALTER_HARD_SUBREG): Removed.
(REGMODE_NATURAL_SIZE): Override.
(REG_SIZE): For SUBREG check float mode on SUBREG_REG's mode.
* config/sparc/sparc.md (TFmode move splits): Generate SUBREGs
with byte offsets.
(zero_extendhisi2, zero_extendqidi2_insn, extendhisi2,
extendqihi2, sign_extendqihi2_insn, sign_extendqisi2_insn,
extendqidi2): Generate SUBREGs with byte offsets, also make sure
it is congruent to SUBREG's mode size.
(smulsi3_highpart_v8plus): Fix explicit subregs in rtl to use byte
offsets.
(cmp_siqi_trunc, cmp_siqi_trunc_set, cmp_diqi_trunc,
cmp_diqi_trunc_set, lshrdi3_v8plus+1, lshrdi3_v8plus+2,
lshrdi3_v8plus+3, lshrdi3_v8plus+4): Use proper
SUBREG_BYTE offset for non-paradoxical subregs in patterns.
* config/v850/v850.c (print_operand, output_move_double): Use
subreg_regno function.
Co-Authored-By: Andrew MacLeod <amacleod@redhat.com>
Co-Authored-By: David S. Miller <davem@pierdol.cobaltmicro.com>
From-SVN: r41058
2001-04-03 17:06:12 +02:00
|
|
|
|
int regno = subreg_regno (x);
|
1994-02-25 13:19:23 +01:00
|
|
|
|
|
1995-07-29 15:43:27 +02:00
|
|
|
|
if (! (context ? REGNO_OK_FOR_INDEX_P (regno)
|
1997-01-14 21:38:34 +01:00
|
|
|
|
: REGNO_MODE_OK_FOR_BASE_P (regno, mode)))
|
1995-07-29 15:43:27 +02:00
|
|
|
|
{
|
2002-01-10 01:56:56 +01:00
|
|
|
|
push_reload (x, NULL_RTX, loc, (rtx*) 0,
|
2001-12-17 17:46:11 +01:00
|
|
|
|
(context ? INDEX_REG_CLASS :
|
|
|
|
|
MODE_BASE_REG_CLASS (mode)),
|
1995-07-29 15:43:27 +02:00
|
|
|
|
GET_MODE (x), VOIDmode, 0, 0, opnum, type);
|
|
|
|
|
return 1;
|
|
|
|
|
}
|
|
|
|
|
}
|
1995-08-28 12:54:22 +02:00
|
|
|
|
/* If this is a SUBREG of a pseudo-register, and the pseudo-register
|
1995-07-29 15:43:27 +02:00
|
|
|
|
is larger than the class size, then reload the whole SUBREG. */
|
|
|
|
|
else
|
1994-02-25 13:19:23 +01:00
|
|
|
|
{
|
1998-10-27 23:38:40 +01:00
|
|
|
|
enum reg_class class = (context ? INDEX_REG_CLASS
|
2001-12-17 17:46:11 +01:00
|
|
|
|
: MODE_BASE_REG_CLASS (mode));
|
1995-07-29 15:43:27 +02:00
|
|
|
|
if (CLASS_MAX_NREGS (class, GET_MODE (SUBREG_REG (x)))
|
|
|
|
|
> reg_class_size[class])
|
|
|
|
|
{
|
1999-02-12 14:12:48 +01:00
|
|
|
|
x = find_reloads_subreg_address (x, 0, opnum, type,
|
|
|
|
|
ind_levels, insn);
|
2002-01-10 01:56:56 +01:00
|
|
|
|
push_reload (x, NULL_RTX, loc, (rtx*) 0, class,
|
1995-07-29 15:43:27 +02:00
|
|
|
|
GET_MODE (x), VOIDmode, 0, 0, opnum, type);
|
|
|
|
|
return 1;
|
|
|
|
|
}
|
1994-02-25 13:19:23 +01:00
|
|
|
|
}
|
1992-02-28 11:23:25 +01:00
|
|
|
|
}
|
1994-02-25 13:19:23 +01:00
|
|
|
|
break;
|
1999-09-01 16:30:35 +02:00
|
|
|
|
|
1997-11-02 22:19:36 +01:00
|
|
|
|
default:
|
|
|
|
|
break;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
}
|
|
|
|
|
|
1994-02-25 13:19:23 +01:00
|
|
|
|
{
|
2001-10-11 05:16:15 +02:00
|
|
|
|
const char *fmt = GET_RTX_FORMAT (code);
|
|
|
|
|
int i;
|
1994-02-25 13:19:23 +01:00
|
|
|
|
|
|
|
|
|
for (i = GET_RTX_LENGTH (code) - 1; i >= 0; i--)
|
|
|
|
|
{
|
|
|
|
|
if (fmt[i] == 'e')
|
1997-01-14 21:38:34 +01:00
|
|
|
|
find_reloads_address_1 (mode, XEXP (x, i), context, &XEXP (x, i),
|
1997-03-15 13:28:39 +01:00
|
|
|
|
opnum, type, ind_levels, insn);
|
1994-02-25 13:19:23 +01:00
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
1992-02-28 11:23:25 +01:00
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* X, which is found at *LOC, is a part of an address that needs to be
|
|
|
|
|
reloaded into a register of class CLASS. If X is a constant, or if
|
|
|
|
|
X is a PLUS that contains a constant, check that the constant is a
|
|
|
|
|
legitimate operand and that we are supposed to be able to load
|
|
|
|
|
it into the register.
|
|
|
|
|
|
|
|
|
|
If not, force the constant into memory and reload the MEM instead.
|
|
|
|
|
|
|
|
|
|
MODE is the mode to use, in case X is an integer constant.
|
|
|
|
|
|
1993-03-29 13:27:52 +02:00
|
|
|
|
OPNUM and TYPE describe the purpose of any reloads made.
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
|
|
|
|
IND_LEVELS says how many levels of indirect addressing this machine
|
|
|
|
|
supports. */
|
|
|
|
|
|
|
|
|
|
static void
|
1993-03-29 13:27:52 +02:00
|
|
|
|
find_reloads_address_part (x, loc, class, mode, opnum, type, ind_levels)
|
1992-02-28 11:23:25 +01:00
|
|
|
|
rtx x;
|
|
|
|
|
rtx *loc;
|
|
|
|
|
enum reg_class class;
|
|
|
|
|
enum machine_mode mode;
|
1993-03-29 13:27:52 +02:00
|
|
|
|
int opnum;
|
|
|
|
|
enum reload_type type;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
int ind_levels;
|
|
|
|
|
{
|
|
|
|
|
if (CONSTANT_P (x)
|
|
|
|
|
&& (! LEGITIMATE_CONSTANT_P (x)
|
|
|
|
|
|| PREFERRED_RELOAD_CLASS (x, class) == NO_REGS))
|
|
|
|
|
{
|
1998-11-18 18:52:45 +01:00
|
|
|
|
rtx tem;
|
|
|
|
|
|
2000-10-26 01:58:53 +02:00
|
|
|
|
tem = x = force_const_mem (mode, x);
|
1992-02-28 11:23:25 +01:00
|
|
|
|
find_reloads_address (mode, &tem, XEXP (tem, 0), &XEXP (tem, 0),
|
1997-03-15 13:28:39 +01:00
|
|
|
|
opnum, type, ind_levels, 0);
|
1992-02-28 11:23:25 +01:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
else if (GET_CODE (x) == PLUS
|
|
|
|
|
&& CONSTANT_P (XEXP (x, 1))
|
|
|
|
|
&& (! LEGITIMATE_CONSTANT_P (XEXP (x, 1))
|
|
|
|
|
|| PREFERRED_RELOAD_CLASS (XEXP (x, 1), class) == NO_REGS))
|
|
|
|
|
{
|
1998-11-18 18:52:45 +01:00
|
|
|
|
rtx tem;
|
|
|
|
|
|
2000-10-26 01:58:53 +02:00
|
|
|
|
tem = force_const_mem (GET_MODE (x), XEXP (x, 1));
|
alias.c: Change all uses of gen_rtx(FOO...) to gen_rtx_FOO...
* alias.c: Change all uses of gen_rtx(FOO...) to gen_rtx_FOO;
change gen_rtx(expr...) to gen_rtx_fmt_foo(expr...).
* caller-save.c, calls.c, combine.c, cse.c: Likewise.
* dwarf2out.c, except.c, explow.c, expmed.c, expr.c: Likewise.
* final.c, flow.c, function.c, genpeep.c, haifa-sched.c: Likewise.
* halfpic.c, integrate.c, jump.c, local-alloc.c, loop.c: Likewise.
* profile.c, recog.c, reg-stack.c, regclass.c, regmove.c: Likewise.
* reload.c, reload1.c, reorg.c, sched.c, stmt.c, stupid.c: Likewise.
* unroll.c, varasm.c: Likewise.
* config/alpha/alpha.c, config/alpha/alpha.md: Likewise.
From-SVN: r17357
1998-01-15 00:10:50 +01:00
|
|
|
|
x = gen_rtx_PLUS (GET_MODE (x), XEXP (x, 0), tem);
|
1992-02-28 11:23:25 +01:00
|
|
|
|
find_reloads_address (mode, &tem, XEXP (tem, 0), &XEXP (tem, 0),
|
1997-03-15 13:28:39 +01:00
|
|
|
|
opnum, type, ind_levels, 0);
|
1992-02-28 11:23:25 +01:00
|
|
|
|
}
|
|
|
|
|
|
2002-01-10 01:56:56 +01:00
|
|
|
|
push_reload (x, NULL_RTX, loc, (rtx*) 0, class,
|
1993-03-29 13:27:52 +02:00
|
|
|
|
mode, VOIDmode, 0, 0, opnum, type);
|
1992-02-28 11:23:25 +01:00
|
|
|
|
}
|
|
|
|
|
|
1999-02-12 14:12:48 +01:00
|
|
|
|
/* X, a subreg of a pseudo, is a part of an address that needs to be
|
|
|
|
|
reloaded.
|
|
|
|
|
|
|
|
|
|
If the pseudo is equivalent to a memory location that cannot be directly
|
|
|
|
|
addressed, make the necessary address reloads.
|
|
|
|
|
|
|
|
|
|
If address reloads have been necessary, or if the address is changed
|
|
|
|
|
by register elimination, return the rtx of the memory location;
|
|
|
|
|
otherwise, return X.
|
|
|
|
|
|
|
|
|
|
If FORCE_REPLACE is nonzero, unconditionally replace the subreg with the
|
|
|
|
|
memory location.
|
|
|
|
|
|
|
|
|
|
OPNUM and TYPE identify the purpose of the reload.
|
|
|
|
|
|
|
|
|
|
IND_LEVELS says how many levels of indirect addressing are
|
|
|
|
|
supported at this point in the address.
|
|
|
|
|
|
|
|
|
|
INSN, if nonzero, is the insn in which we do the reload. It is used
|
|
|
|
|
to determine where to put USEs for pseudos that we have to replace with
|
|
|
|
|
stack slots. */
|
|
|
|
|
|
|
|
|
|
static rtx
|
|
|
|
|
find_reloads_subreg_address (x, force_replace, opnum, type,
|
|
|
|
|
ind_levels, insn)
|
|
|
|
|
rtx x;
|
|
|
|
|
int force_replace;
|
|
|
|
|
int opnum;
|
|
|
|
|
enum reload_type type;
|
|
|
|
|
int ind_levels;
|
|
|
|
|
rtx insn;
|
|
|
|
|
{
|
|
|
|
|
int regno = REGNO (SUBREG_REG (x));
|
|
|
|
|
|
|
|
|
|
if (reg_equiv_memory_loc[regno])
|
|
|
|
|
{
|
|
|
|
|
/* If the address is not directly addressable, or if the address is not
|
|
|
|
|
offsettable, then it must be replaced. */
|
|
|
|
|
if (! force_replace
|
|
|
|
|
&& (reg_equiv_address[regno]
|
|
|
|
|
|| ! offsettable_memref_p (reg_equiv_mem[regno])))
|
|
|
|
|
force_replace = 1;
|
|
|
|
|
|
|
|
|
|
if (force_replace || num_not_at_initial_offset)
|
|
|
|
|
{
|
|
|
|
|
rtx tem = make_memloc (SUBREG_REG (x), regno);
|
|
|
|
|
|
|
|
|
|
/* If the address changes because of register elimination, then
|
1999-02-12 17:25:20 +01:00
|
|
|
|
it must be replaced. */
|
1999-02-12 14:12:48 +01:00
|
|
|
|
if (force_replace
|
|
|
|
|
|| ! rtx_equal_p (tem, reg_equiv_mem[regno]))
|
|
|
|
|
{
|
Use byte offsets in SUBREGs instead of words.
2001-04-03 Jakub Jelinek <jakub@redhat.com>
David S. Miller <davem@pierdol.cobaltmicro.com>
Andrew MacLeod <amacleod@redhat.com>
Use byte offsets in SUBREGs instead of words.
* alias.c (nonlocal_mentioned_p): Use subreg_regno function.
* caller-save.c (mark_set_regs): Change callers of subreg_hard_regno
to pass new argument.
(add_stored_regs): Use subreg_regno_offset function.
* calls.c (expand_call): For non-paradoxical SUBREG take endianess
into account.
(precompute_arguments): Use gen_lowpart_SUBREG.
* combine.c (try_combine): Replace explicit XEXP with SUBREG_REG.
(combine_simplify_rtx): Rework to use SUBREG_BYTE.
(simplify_set): Rework to use SUBREG_BYTE.
(expand_field_assignment): Use SUBREG_BYTE.
(make_extraction): Use SUBREG_BYTE.
(if_then_else_cond): Use SUBREG_BYTE.
(apply_distributive_law): Use SUBREG_BYTE and fixup subreg comments.
(gen_lowpart_for_combine): Compute full byte offset.
* cse.c (mention_regs): Use SUBREG_BYTE.
(remove_invalid_subreg_refs): Rework to use SUBREG_BYTE.
(canon_hash): Use SUBREG_BYTE.
(fold_rtx): Pass SUBREG_BYTE div UNITS_PER_WORD to operand_subword.
(gen_lowpart_if_possible): Formatting.
* dbxout.c (dbxout_symbol_location): Compute SUBREG hard regnos
correctly.
* dwarf2out.c (is_pseudo_reg): Fixup explicit XEXP into SUBREG_REG
(mem_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
(loc_descriptor): Fixup explicit XEXP into SUBREG_REG
* dwarfout.c (is_pseudo_reg): Fixup explicit XEXP into SUBREG_REG
(output_mem_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
(output_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
* emit-rtl.c (gen_rtx_SUBREG): New function, used to verify
certain invariants about SUBREGs the compiler creates.
(gen_lowpart_SUBREG): New function.
(subreg_hard_regno): New function to get the final register number.
(gen_lowpart_common): Use SUBREG_BYTE.
(gen_imagpart): Spacing nits.
(subreg_realpart_p): Use SUBREG_BYTE.
(gen_highpart): Use SUBREG_BYTE.
(subreg_lowpart_p): Always compute endian corrected goal offset,
even at the byte level, then compare against that.
(constant_subword): New function, pulled out all constant cases
from operand_subword and changed second argument name to offset.
(operand_subword): Detect non REG/SUBREG/CONCAT/MEM cases early
and call constant_subword to do the work. Return const0_rtx if
looking for a word outside of OP.
(operand_subword_force): Change second arg name to offset.
* expmed.c (store_bit_field): Use SUBREG_BYTE.
(store_split_bit_field): Use SUBREG_BYTE.
(extract_bit_field): Use SUBREG_BYTE.
(extract_split_bit_field): Use SUBREG_BYTE.
(expand_shift): Use SUBREG_BYTE.
* expr.c (store_expr, expand_expr): Use gen_lowpart_SUBREG.
* final.c (alter_subreg) Use subreg_hard_regno and SUBREG_BYTE.
* flow.c (set_noop_p): Use SUBREG_BYTE.
(mark_set_1): Remove ALTER_HARD_SUBREG. Use subreg_regno_offset instead.
* function.c (fixup_var_refs_1): Fixup explicit XEXP into a SUBREG_REG.
(fixup_memory_subreg): Use SUBREG_BYTE and remove byte endian
correction code.
(optimize_bit_field): Use SUBREG_BYTE.
(purge_addressof_1): Use SUBREG_BYTE.
(purge_single_hard_subreg_set): Use subreg_regno_offset function.
(assign_params): Mark arguments SUBREG_PROMOTED_VAR_P if they are
actually promoted by the caller and PROMOTE_FOR_CALLS_ONLY is true.
* gengenrtl.c (special_rtx): Add SUBREG.
* global.c (mark_reg_store): Use SUBREG_BYTE.
(set_preference): Rework to use subreg_regno_offset and SUBREG_BYTE.
* ifcvt (noce_emit_move_insn): Use SUBREG_BYTE.
* integrate.c (copy_rtx_and_substitute): Use SUBREG_BYTE and make sure
final byte offset is congruent to subreg's mode size.
(subst_constants): Use SUBREG_BYTE.
(mark_stores): Use subreg_regno_offset function.
* jump.c (rtx_renumbered_equal_p, true_regnum): Use subreg_regno_offset
function and SUBREG_BYTE.
* local-alloc.c (combine_regs): Use subreg_regno_offset function.
(reg_is_born): Use subreg_hard_regno.
* recog.c (valid_replace_rtx_1): Use SUBREG_BYTE and remove byte
endian correction code. Don't combine subregs unless resulting
offset aligns with type. Fix subreg constant extraction for DImode.
Simplify SUBREG of VOIDmode CONST_DOUBLE.
(general_operand): Remove dead mode_altering_drug code.
(indirect_operand): Use SUBREG_BYTE.
(constrain_operands): Use subreg_regno_offset function.
* reg-stack.c (get_true_reg): Use subreg_regno_offset function.
* regmove.c (regmove_optimize): Use SUBREG_BYTE.
(optimize_reg_copy_3): Use gen_lowpart_SUBREG.
* regs.h (REG_SIZE): Allow target to override.
(REGMODE_NATURAL_SIZE): New macro which target can override.
* reload.c (reload_inner_reg_of_subreg): subreg_regno should be used
on the entire subreg rtx.
(push_reload): Use SUBREG_BYTE in comments and code.
(find_dummy_reload): Use subreg_regno_offset. Only adjust offsets
for hard registers inside subregs.
(operands_match_p): Use subreg_regno_offset.
(find_reloads): Use SUBREG_BYTE and only advance offset for subregs
containing hard regs.
(find_reload_toplev): Use SUBREG_BYTE. Remove byte endian
corrections when fixing up MEM subregs.
(find_reloads_address_1): Use SUBREG_BYTE, subreg_regno, and
subreg_regno_offset where appropriate.
(find_reloads_subreg_address): Use SUBREG_BYTE. Remove
byte endian corrections when fixing up MEM subregs.
(subst_reloads): When combining two subregs, make sure final
offset is congruent to subreg's mode size.
(find_replacement): Use SUBREG_BYTE and subreg_regno_offset.
(refers_to_regno_for_reload_p): Use subreg_regno.
(reg_overlap_mentioned_for_reload_p): Use subreg_regno_offset.
* reload1.c (eliminate_regs) Use SUBREG_BYTE. Remove byte endian
correction code for memory subreg fixups.
(forget_old_reload_1): Use subreg_regno_offset.
(choose_reload_regs): Use subreg_regno.
(emit_input_reload_insns): Use SUBREG_BYTE.
(reload_combine_note_store): Use subreg_regno_offset.
(move2add_note_store): Use subreg_regno_offset.
* resource.c (update_live_status, mark_referenced_resources): Use
subreg_regno function.
(mark_set_resources): Use subreg_regno function.
* rtl.h (SUBREG_WORD): Rename to SUBREG_BYTE.
(subreg_regno_offset, subreg_regno): Define prototypes.
(subreg_hard_regno, constant_subword, gen_rtx_SUBREG): Newi functions.
(gen_lowpart_SUBREG): Add prototype.
* rtl.texi (subreg): Update to reflect new byte offset representation.
Add mentioning of the effect that BYTES_BIG_ENDIAN has on subregs now.
* rtlanal.c (refers_to_regno_p): Use subreg_regno.
(reg_overlap_mentioned_p): Use subreg_regno.
(replace_regs); Make sure final offset of combined subreg is
congruent to size of subreg's mode.
(subreg_regno_offset): New function.
(subreg_regno): New function.
* sched-vis.c (print_value): Change SUBREG_WORD to SUBREG_BYTE.
* sdbout.c (sdbout_symbol): Compute offset using alter_subreg.
* stmt.c (expand_anon_union_decl): Use gen_lowpart_SUBREG.
* tm.texi (ALTER_HARD_SUBREG): Remove, it is now dead.
(SUBREG_REGNO_OFFSET): Describe SUBREG_REGNO_OFFSET overrides.
* config/a29k/a29k.c (gpc_reg_operand): Use subreg_regno.
(a29k_get_reloaded_address): Use SUBREG_BYTE.
(print_operand): Use SUBREG_BYTE.
* config/alpha/alpha.c (print_operand_address): Use SUBREG_BYTE.
* config/arm/arm.c (arm_reload_in_hi): Use SUBREG_BYTE.
(arm_reload_out_hi): Use SUBREG_BYTE.
* config/d30v/d30v.c (d30v_split_double): Use subreg_regno_offset
instead of SUBREG_WORD.
(d30v_print_operand_memory_reference): Use subreg_regno_offset.
* config/dsp16xx/dsp16xx.md (extendqihi2, zero_extendqihi2): Fix
SUBREG creation to use byte offset.
* config/h8300/h8300.md (Unnamed HImode zero extraction and 16bit
inverted load insns): Fix explicit rtl subregs to use byte
offsets.
* config/i370/i370.md (cmpstrsi, movstrsi, mulsi3, divsi3,
udivsi3, umodsi3): Generate SUBREGs with byte offsets.
* config/i860/i860.c (single_insn_src_p): Use SUBREG_BYTE.
* config/i860/i860.md (mulsi3_big): Fixup explicit SUBREGs in rtl
to use byte offsets.
(unnamed fmlow.dd insn): Fixup SUBREGS to use byte offsets.
* config/i960/i960.md (extendhisi2): Generate SUBREGs with byte
offsets, also make sure it is congruent to SUBREG's mode size.
(extendqisi2, extendqihi2, zero_extendhisi2, zero_extendqisi2,
unnamed ldob insn): Generate SUBREGs with byte offset.
(zero_extendqihi2): SUBREG's are byte offsets.
* config/m68hc11/m68hc11.c (m68hc11_gen_lowpart): Use SUBREG_BYTE.
(m68hc11_gen_highpart): Use SUBREG_BYTE.
* config/m68k/m68k.md (zero_extendhisi2, zero_extendqihi2,
zero-extendqisi2): Generate SUBREGs with byte offset.
(umulsidi3, mulsidi3, subreghi1ashrdi_const32,
subregsi1ashrdi_const32, subreg1lshrdi_const32): Fixup explicit
subregs in rtl to use byte offsets.
* config/m88k/m88k.md (extendsidi2): fixup subregs to use byte offset.
* config/mips/mips.c (mips_move_1word): Use subreg_regno_offset.
(mips_move_2words): Use subreg_regno_offset.
(mips_secondary_reload_class): Use subreg_regno_offset.
* config/mips/mips.md (DImode plus, minus, move, and logical op
splits): Fixup explicit subregs in rtl to use byte offsets.
* config/mn10200/mn10200.c (print_operand): Use subreg_regno function.
* config/mn10300/mn10300.c (print_operand): Use subreg_regno function.
* config/ns32k/ns32k.md (udivmoddisi4): Fix explicit subregs in
rtl to use byte offsets.
* config/pa/pa.c (emit_move_sequence): Use SUBREG_BYTE.
* config/pa/pa.md (floatunssisf2, floatunssidf2, mulsi3): fix explicit
subregs to use byte offsets.
* config/pdp11/pdp11.md (zero_extendhisi2, modhi3, modhi3+1):
Fixup explicit subregs in rtl to use byte offsets.
* config/romp/romp.c (memory_offset_in_range_p): Use SUBREG_BYTE
and remove byte endian correction code.
* config/sh/sh.c (output_movedouble): Use subreg_regno.
(gen_ashift_hi): Use SUBREG_BYTE.
(regs_used): Use subreg_regno_offset.
(machine_dependent_reorg): Use subreg_regno_offset.
* config/sh/sh.h (INDEX_REGISTER_RTX_P): Use SUBREG_BYTE.
* config/sh/sh.md (DImode and DFmode move splits): Use subreg_regno.
(movdf_i4): Subregs are byte offsets now.
* config/sparc/sparc.c (ultra_find_type): Use SUBREG_BYTE.
* config/sparc/sparc.h (ALTER_HARD_SUBREG): Removed.
(REGMODE_NATURAL_SIZE): Override.
(REG_SIZE): For SUBREG check float mode on SUBREG_REG's mode.
* config/sparc/sparc.md (TFmode move splits): Generate SUBREGs
with byte offsets.
(zero_extendhisi2, zero_extendqidi2_insn, extendhisi2,
extendqihi2, sign_extendqihi2_insn, sign_extendqisi2_insn,
extendqidi2): Generate SUBREGs with byte offsets, also make sure
it is congruent to SUBREG's mode size.
(smulsi3_highpart_v8plus): Fix explicit subregs in rtl to use byte
offsets.
(cmp_siqi_trunc, cmp_siqi_trunc_set, cmp_diqi_trunc,
cmp_diqi_trunc_set, lshrdi3_v8plus+1, lshrdi3_v8plus+2,
lshrdi3_v8plus+3, lshrdi3_v8plus+4): Use proper
SUBREG_BYTE offset for non-paradoxical subregs in patterns.
* config/v850/v850.c (print_operand, output_move_double): Use
subreg_regno function.
Co-Authored-By: Andrew MacLeod <amacleod@redhat.com>
Co-Authored-By: David S. Miller <davem@pierdol.cobaltmicro.com>
From-SVN: r41058
2001-04-03 17:06:12 +02:00
|
|
|
|
int offset = SUBREG_BYTE (x);
|
2001-01-25 00:50:56 +01:00
|
|
|
|
unsigned outer_size = GET_MODE_SIZE (GET_MODE (x));
|
|
|
|
|
unsigned inner_size = GET_MODE_SIZE (GET_MODE (SUBREG_REG (x)));
|
1999-02-12 14:12:48 +01:00
|
|
|
|
|
|
|
|
|
XEXP (tem, 0) = plus_constant (XEXP (tem, 0), offset);
|
|
|
|
|
PUT_MODE (tem, GET_MODE (x));
|
2001-01-25 00:50:56 +01:00
|
|
|
|
|
|
|
|
|
/* If this was a paradoxical subreg that we replaced, the
|
|
|
|
|
resulting memory must be sufficiently aligned to allow
|
|
|
|
|
us to widen the mode of the memory. */
|
|
|
|
|
if (outer_size > inner_size && STRICT_ALIGNMENT)
|
|
|
|
|
{
|
|
|
|
|
rtx base;
|
|
|
|
|
|
|
|
|
|
base = XEXP (tem, 0);
|
|
|
|
|
if (GET_CODE (base) == PLUS)
|
|
|
|
|
{
|
|
|
|
|
if (GET_CODE (XEXP (base, 1)) == CONST_INT
|
|
|
|
|
&& INTVAL (XEXP (base, 1)) % outer_size != 0)
|
|
|
|
|
return x;
|
|
|
|
|
base = XEXP (base, 0);
|
|
|
|
|
}
|
|
|
|
|
if (GET_CODE (base) != REG
|
|
|
|
|
|| (REGNO_POINTER_ALIGN (REGNO (base))
|
|
|
|
|
< outer_size * BITS_PER_UNIT))
|
|
|
|
|
return x;
|
|
|
|
|
}
|
|
|
|
|
|
1999-03-05 16:07:56 +01:00
|
|
|
|
find_reloads_address (GET_MODE (tem), &tem, XEXP (tem, 0),
|
|
|
|
|
&XEXP (tem, 0), opnum, ADDR_TYPE (type),
|
|
|
|
|
ind_levels, insn);
|
2001-01-25 00:50:56 +01:00
|
|
|
|
|
1999-02-12 14:12:48 +01:00
|
|
|
|
/* If this is not a toplevel operand, find_reloads doesn't see
|
|
|
|
|
this substitution. We have to emit a USE of the pseudo so
|
|
|
|
|
that delete_output_reload can see it. */
|
1999-09-12 03:51:28 +02:00
|
|
|
|
if (replace_reloads && recog_data.operand[opnum] != x)
|
2001-09-29 23:52:12 +02:00
|
|
|
|
/* We mark the USE with QImode so that we recognize it
|
|
|
|
|
as one that can be safely deleted at the end of
|
|
|
|
|
reload. */
|
|
|
|
|
PUT_MODE (emit_insn_before (gen_rtx_USE (VOIDmode,
|
|
|
|
|
SUBREG_REG (x)),
|
|
|
|
|
insn), QImode);
|
1999-03-05 16:07:56 +01:00
|
|
|
|
x = tem;
|
1999-02-12 14:12:48 +01:00
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
return x;
|
|
|
|
|
}
|
|
|
|
|
|
1993-03-29 13:27:52 +02:00
|
|
|
|
/* Substitute into the current INSN the registers into which we have reloaded
|
1992-02-28 11:23:25 +01:00
|
|
|
|
the things that need reloading. The array `replacements'
|
2000-07-27 03:45:41 +02:00
|
|
|
|
contains the locations of all pointers that must be changed
|
1992-02-28 11:23:25 +01:00
|
|
|
|
and says what to replace them with.
|
|
|
|
|
|
|
|
|
|
Return the rtx that X translates into; usually X, but modified. */
|
|
|
|
|
|
|
|
|
|
void
|
2001-01-07 03:26:51 +01:00
|
|
|
|
subst_reloads (insn)
|
|
|
|
|
rtx insn;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
{
|
2001-10-11 05:16:15 +02:00
|
|
|
|
int i;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
|
|
|
|
for (i = 0; i < n_replacements; i++)
|
|
|
|
|
{
|
2001-10-11 05:16:15 +02:00
|
|
|
|
struct replacement *r = &replacements[i];
|
|
|
|
|
rtx reloadreg = rld[r->what].reg_rtx;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
if (reloadreg)
|
|
|
|
|
{
|
2001-08-25 23:39:47 +02:00
|
|
|
|
#ifdef ENABLE_CHECKING
|
|
|
|
|
/* Internal consistency test. Check that we don't modify
|
|
|
|
|
anything in the equivalence arrays. Whenever something from
|
|
|
|
|
those arrays needs to be reloaded, it must be unshared before
|
|
|
|
|
being substituted into; the equivalence must not be modified.
|
|
|
|
|
Otherwise, if the equivalence is used after that, it will
|
|
|
|
|
have been modified, and the thing substituted (probably a
|
|
|
|
|
register) is likely overwritten and not a usable equivalence. */
|
|
|
|
|
int check_regno;
|
|
|
|
|
|
|
|
|
|
for (check_regno = 0; check_regno < max_regno; check_regno++)
|
|
|
|
|
{
|
|
|
|
|
#define CHECK_MODF(ARRAY) \
|
|
|
|
|
if (ARRAY[check_regno] \
|
|
|
|
|
&& loc_mentioned_in_p (r->where, \
|
|
|
|
|
ARRAY[check_regno])) \
|
|
|
|
|
abort ()
|
|
|
|
|
|
|
|
|
|
CHECK_MODF (reg_equiv_constant);
|
|
|
|
|
CHECK_MODF (reg_equiv_memory_loc);
|
|
|
|
|
CHECK_MODF (reg_equiv_address);
|
|
|
|
|
CHECK_MODF (reg_equiv_mem);
|
|
|
|
|
#undef CHECK_MODF
|
|
|
|
|
}
|
|
|
|
|
#endif /* ENABLE_CHECKING */
|
|
|
|
|
|
2001-01-07 03:26:51 +01:00
|
|
|
|
/* If we're replacing a LABEL_REF with a register, add a
|
|
|
|
|
REG_LABEL note to indicate to flow which label this
|
|
|
|
|
register refers to. */
|
|
|
|
|
if (GET_CODE (*r->where) == LABEL_REF
|
|
|
|
|
&& GET_CODE (insn) == JUMP_INSN)
|
2001-08-31 16:49:37 +02:00
|
|
|
|
REG_NOTES (insn) = gen_rtx_INSN_LIST (REG_LABEL,
|
2001-01-07 03:26:51 +01:00
|
|
|
|
XEXP (*r->where, 0),
|
|
|
|
|
REG_NOTES (insn));
|
|
|
|
|
|
1992-02-28 11:23:25 +01:00
|
|
|
|
/* Encapsulate RELOADREG so its machine mode matches what
|
1993-07-05 23:59:09 +02:00
|
|
|
|
used to be there. Note that gen_lowpart_common will
|
|
|
|
|
do the wrong thing if RELOADREG is multi-word. RELOADREG
|
|
|
|
|
will always be a REG here. */
|
1992-02-28 11:23:25 +01:00
|
|
|
|
if (GET_MODE (reloadreg) != r->mode && r->mode != VOIDmode)
|
alias.c: Change all uses of gen_rtx(FOO...) to gen_rtx_FOO...
* alias.c: Change all uses of gen_rtx(FOO...) to gen_rtx_FOO;
change gen_rtx(expr...) to gen_rtx_fmt_foo(expr...).
* caller-save.c, calls.c, combine.c, cse.c: Likewise.
* dwarf2out.c, except.c, explow.c, expmed.c, expr.c: Likewise.
* final.c, flow.c, function.c, genpeep.c, haifa-sched.c: Likewise.
* halfpic.c, integrate.c, jump.c, local-alloc.c, loop.c: Likewise.
* profile.c, recog.c, reg-stack.c, regclass.c, regmove.c: Likewise.
* reload.c, reload1.c, reorg.c, sched.c, stmt.c, stupid.c: Likewise.
* unroll.c, varasm.c: Likewise.
* config/alpha/alpha.c, config/alpha/alpha.md: Likewise.
From-SVN: r17357
1998-01-15 00:10:50 +01:00
|
|
|
|
reloadreg = gen_rtx_REG (r->mode, REGNO (reloadreg));
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
|
|
|
|
/* If we are putting this into a SUBREG and RELOADREG is a
|
|
|
|
|
SUBREG, we would be making nested SUBREGs, so we have to fix
|
|
|
|
|
this up. Note that r->where == &SUBREG_REG (*r->subreg_loc). */
|
|
|
|
|
|
|
|
|
|
if (r->subreg_loc != 0 && GET_CODE (reloadreg) == SUBREG)
|
|
|
|
|
{
|
|
|
|
|
if (GET_MODE (*r->subreg_loc)
|
|
|
|
|
== GET_MODE (SUBREG_REG (reloadreg)))
|
|
|
|
|
*r->subreg_loc = SUBREG_REG (reloadreg);
|
|
|
|
|
else
|
|
|
|
|
{
|
Use byte offsets in SUBREGs instead of words.
2001-04-03 Jakub Jelinek <jakub@redhat.com>
David S. Miller <davem@pierdol.cobaltmicro.com>
Andrew MacLeod <amacleod@redhat.com>
Use byte offsets in SUBREGs instead of words.
* alias.c (nonlocal_mentioned_p): Use subreg_regno function.
* caller-save.c (mark_set_regs): Change callers of subreg_hard_regno
to pass new argument.
(add_stored_regs): Use subreg_regno_offset function.
* calls.c (expand_call): For non-paradoxical SUBREG take endianess
into account.
(precompute_arguments): Use gen_lowpart_SUBREG.
* combine.c (try_combine): Replace explicit XEXP with SUBREG_REG.
(combine_simplify_rtx): Rework to use SUBREG_BYTE.
(simplify_set): Rework to use SUBREG_BYTE.
(expand_field_assignment): Use SUBREG_BYTE.
(make_extraction): Use SUBREG_BYTE.
(if_then_else_cond): Use SUBREG_BYTE.
(apply_distributive_law): Use SUBREG_BYTE and fixup subreg comments.
(gen_lowpart_for_combine): Compute full byte offset.
* cse.c (mention_regs): Use SUBREG_BYTE.
(remove_invalid_subreg_refs): Rework to use SUBREG_BYTE.
(canon_hash): Use SUBREG_BYTE.
(fold_rtx): Pass SUBREG_BYTE div UNITS_PER_WORD to operand_subword.
(gen_lowpart_if_possible): Formatting.
* dbxout.c (dbxout_symbol_location): Compute SUBREG hard regnos
correctly.
* dwarf2out.c (is_pseudo_reg): Fixup explicit XEXP into SUBREG_REG
(mem_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
(loc_descriptor): Fixup explicit XEXP into SUBREG_REG
* dwarfout.c (is_pseudo_reg): Fixup explicit XEXP into SUBREG_REG
(output_mem_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
(output_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
* emit-rtl.c (gen_rtx_SUBREG): New function, used to verify
certain invariants about SUBREGs the compiler creates.
(gen_lowpart_SUBREG): New function.
(subreg_hard_regno): New function to get the final register number.
(gen_lowpart_common): Use SUBREG_BYTE.
(gen_imagpart): Spacing nits.
(subreg_realpart_p): Use SUBREG_BYTE.
(gen_highpart): Use SUBREG_BYTE.
(subreg_lowpart_p): Always compute endian corrected goal offset,
even at the byte level, then compare against that.
(constant_subword): New function, pulled out all constant cases
from operand_subword and changed second argument name to offset.
(operand_subword): Detect non REG/SUBREG/CONCAT/MEM cases early
and call constant_subword to do the work. Return const0_rtx if
looking for a word outside of OP.
(operand_subword_force): Change second arg name to offset.
* expmed.c (store_bit_field): Use SUBREG_BYTE.
(store_split_bit_field): Use SUBREG_BYTE.
(extract_bit_field): Use SUBREG_BYTE.
(extract_split_bit_field): Use SUBREG_BYTE.
(expand_shift): Use SUBREG_BYTE.
* expr.c (store_expr, expand_expr): Use gen_lowpart_SUBREG.
* final.c (alter_subreg) Use subreg_hard_regno and SUBREG_BYTE.
* flow.c (set_noop_p): Use SUBREG_BYTE.
(mark_set_1): Remove ALTER_HARD_SUBREG. Use subreg_regno_offset instead.
* function.c (fixup_var_refs_1): Fixup explicit XEXP into a SUBREG_REG.
(fixup_memory_subreg): Use SUBREG_BYTE and remove byte endian
correction code.
(optimize_bit_field): Use SUBREG_BYTE.
(purge_addressof_1): Use SUBREG_BYTE.
(purge_single_hard_subreg_set): Use subreg_regno_offset function.
(assign_params): Mark arguments SUBREG_PROMOTED_VAR_P if they are
actually promoted by the caller and PROMOTE_FOR_CALLS_ONLY is true.
* gengenrtl.c (special_rtx): Add SUBREG.
* global.c (mark_reg_store): Use SUBREG_BYTE.
(set_preference): Rework to use subreg_regno_offset and SUBREG_BYTE.
* ifcvt (noce_emit_move_insn): Use SUBREG_BYTE.
* integrate.c (copy_rtx_and_substitute): Use SUBREG_BYTE and make sure
final byte offset is congruent to subreg's mode size.
(subst_constants): Use SUBREG_BYTE.
(mark_stores): Use subreg_regno_offset function.
* jump.c (rtx_renumbered_equal_p, true_regnum): Use subreg_regno_offset
function and SUBREG_BYTE.
* local-alloc.c (combine_regs): Use subreg_regno_offset function.
(reg_is_born): Use subreg_hard_regno.
* recog.c (valid_replace_rtx_1): Use SUBREG_BYTE and remove byte
endian correction code. Don't combine subregs unless resulting
offset aligns with type. Fix subreg constant extraction for DImode.
Simplify SUBREG of VOIDmode CONST_DOUBLE.
(general_operand): Remove dead mode_altering_drug code.
(indirect_operand): Use SUBREG_BYTE.
(constrain_operands): Use subreg_regno_offset function.
* reg-stack.c (get_true_reg): Use subreg_regno_offset function.
* regmove.c (regmove_optimize): Use SUBREG_BYTE.
(optimize_reg_copy_3): Use gen_lowpart_SUBREG.
* regs.h (REG_SIZE): Allow target to override.
(REGMODE_NATURAL_SIZE): New macro which target can override.
* reload.c (reload_inner_reg_of_subreg): subreg_regno should be used
on the entire subreg rtx.
(push_reload): Use SUBREG_BYTE in comments and code.
(find_dummy_reload): Use subreg_regno_offset. Only adjust offsets
for hard registers inside subregs.
(operands_match_p): Use subreg_regno_offset.
(find_reloads): Use SUBREG_BYTE and only advance offset for subregs
containing hard regs.
(find_reload_toplev): Use SUBREG_BYTE. Remove byte endian
corrections when fixing up MEM subregs.
(find_reloads_address_1): Use SUBREG_BYTE, subreg_regno, and
subreg_regno_offset where appropriate.
(find_reloads_subreg_address): Use SUBREG_BYTE. Remove
byte endian corrections when fixing up MEM subregs.
(subst_reloads): When combining two subregs, make sure final
offset is congruent to subreg's mode size.
(find_replacement): Use SUBREG_BYTE and subreg_regno_offset.
(refers_to_regno_for_reload_p): Use subreg_regno.
(reg_overlap_mentioned_for_reload_p): Use subreg_regno_offset.
* reload1.c (eliminate_regs) Use SUBREG_BYTE. Remove byte endian
correction code for memory subreg fixups.
(forget_old_reload_1): Use subreg_regno_offset.
(choose_reload_regs): Use subreg_regno.
(emit_input_reload_insns): Use SUBREG_BYTE.
(reload_combine_note_store): Use subreg_regno_offset.
(move2add_note_store): Use subreg_regno_offset.
* resource.c (update_live_status, mark_referenced_resources): Use
subreg_regno function.
(mark_set_resources): Use subreg_regno function.
* rtl.h (SUBREG_WORD): Rename to SUBREG_BYTE.
(subreg_regno_offset, subreg_regno): Define prototypes.
(subreg_hard_regno, constant_subword, gen_rtx_SUBREG): Newi functions.
(gen_lowpart_SUBREG): Add prototype.
* rtl.texi (subreg): Update to reflect new byte offset representation.
Add mentioning of the effect that BYTES_BIG_ENDIAN has on subregs now.
* rtlanal.c (refers_to_regno_p): Use subreg_regno.
(reg_overlap_mentioned_p): Use subreg_regno.
(replace_regs); Make sure final offset of combined subreg is
congruent to size of subreg's mode.
(subreg_regno_offset): New function.
(subreg_regno): New function.
* sched-vis.c (print_value): Change SUBREG_WORD to SUBREG_BYTE.
* sdbout.c (sdbout_symbol): Compute offset using alter_subreg.
* stmt.c (expand_anon_union_decl): Use gen_lowpart_SUBREG.
* tm.texi (ALTER_HARD_SUBREG): Remove, it is now dead.
(SUBREG_REGNO_OFFSET): Describe SUBREG_REGNO_OFFSET overrides.
* config/a29k/a29k.c (gpc_reg_operand): Use subreg_regno.
(a29k_get_reloaded_address): Use SUBREG_BYTE.
(print_operand): Use SUBREG_BYTE.
* config/alpha/alpha.c (print_operand_address): Use SUBREG_BYTE.
* config/arm/arm.c (arm_reload_in_hi): Use SUBREG_BYTE.
(arm_reload_out_hi): Use SUBREG_BYTE.
* config/d30v/d30v.c (d30v_split_double): Use subreg_regno_offset
instead of SUBREG_WORD.
(d30v_print_operand_memory_reference): Use subreg_regno_offset.
* config/dsp16xx/dsp16xx.md (extendqihi2, zero_extendqihi2): Fix
SUBREG creation to use byte offset.
* config/h8300/h8300.md (Unnamed HImode zero extraction and 16bit
inverted load insns): Fix explicit rtl subregs to use byte
offsets.
* config/i370/i370.md (cmpstrsi, movstrsi, mulsi3, divsi3,
udivsi3, umodsi3): Generate SUBREGs with byte offsets.
* config/i860/i860.c (single_insn_src_p): Use SUBREG_BYTE.
* config/i860/i860.md (mulsi3_big): Fixup explicit SUBREGs in rtl
to use byte offsets.
(unnamed fmlow.dd insn): Fixup SUBREGS to use byte offsets.
* config/i960/i960.md (extendhisi2): Generate SUBREGs with byte
offsets, also make sure it is congruent to SUBREG's mode size.
(extendqisi2, extendqihi2, zero_extendhisi2, zero_extendqisi2,
unnamed ldob insn): Generate SUBREGs with byte offset.
(zero_extendqihi2): SUBREG's are byte offsets.
* config/m68hc11/m68hc11.c (m68hc11_gen_lowpart): Use SUBREG_BYTE.
(m68hc11_gen_highpart): Use SUBREG_BYTE.
* config/m68k/m68k.md (zero_extendhisi2, zero_extendqihi2,
zero-extendqisi2): Generate SUBREGs with byte offset.
(umulsidi3, mulsidi3, subreghi1ashrdi_const32,
subregsi1ashrdi_const32, subreg1lshrdi_const32): Fixup explicit
subregs in rtl to use byte offsets.
* config/m88k/m88k.md (extendsidi2): fixup subregs to use byte offset.
* config/mips/mips.c (mips_move_1word): Use subreg_regno_offset.
(mips_move_2words): Use subreg_regno_offset.
(mips_secondary_reload_class): Use subreg_regno_offset.
* config/mips/mips.md (DImode plus, minus, move, and logical op
splits): Fixup explicit subregs in rtl to use byte offsets.
* config/mn10200/mn10200.c (print_operand): Use subreg_regno function.
* config/mn10300/mn10300.c (print_operand): Use subreg_regno function.
* config/ns32k/ns32k.md (udivmoddisi4): Fix explicit subregs in
rtl to use byte offsets.
* config/pa/pa.c (emit_move_sequence): Use SUBREG_BYTE.
* config/pa/pa.md (floatunssisf2, floatunssidf2, mulsi3): fix explicit
subregs to use byte offsets.
* config/pdp11/pdp11.md (zero_extendhisi2, modhi3, modhi3+1):
Fixup explicit subregs in rtl to use byte offsets.
* config/romp/romp.c (memory_offset_in_range_p): Use SUBREG_BYTE
and remove byte endian correction code.
* config/sh/sh.c (output_movedouble): Use subreg_regno.
(gen_ashift_hi): Use SUBREG_BYTE.
(regs_used): Use subreg_regno_offset.
(machine_dependent_reorg): Use subreg_regno_offset.
* config/sh/sh.h (INDEX_REGISTER_RTX_P): Use SUBREG_BYTE.
* config/sh/sh.md (DImode and DFmode move splits): Use subreg_regno.
(movdf_i4): Subregs are byte offsets now.
* config/sparc/sparc.c (ultra_find_type): Use SUBREG_BYTE.
* config/sparc/sparc.h (ALTER_HARD_SUBREG): Removed.
(REGMODE_NATURAL_SIZE): Override.
(REG_SIZE): For SUBREG check float mode on SUBREG_REG's mode.
* config/sparc/sparc.md (TFmode move splits): Generate SUBREGs
with byte offsets.
(zero_extendhisi2, zero_extendqidi2_insn, extendhisi2,
extendqihi2, sign_extendqihi2_insn, sign_extendqisi2_insn,
extendqidi2): Generate SUBREGs with byte offsets, also make sure
it is congruent to SUBREG's mode size.
(smulsi3_highpart_v8plus): Fix explicit subregs in rtl to use byte
offsets.
(cmp_siqi_trunc, cmp_siqi_trunc_set, cmp_diqi_trunc,
cmp_diqi_trunc_set, lshrdi3_v8plus+1, lshrdi3_v8plus+2,
lshrdi3_v8plus+3, lshrdi3_v8plus+4): Use proper
SUBREG_BYTE offset for non-paradoxical subregs in patterns.
* config/v850/v850.c (print_operand, output_move_double): Use
subreg_regno function.
Co-Authored-By: Andrew MacLeod <amacleod@redhat.com>
Co-Authored-By: David S. Miller <davem@pierdol.cobaltmicro.com>
From-SVN: r41058
2001-04-03 17:06:12 +02:00
|
|
|
|
int final_offset =
|
|
|
|
|
SUBREG_BYTE (*r->subreg_loc) + SUBREG_BYTE (reloadreg);
|
|
|
|
|
|
|
|
|
|
/* When working with SUBREGs the rule is that the byte
|
|
|
|
|
offset must be a multiple of the SUBREG's mode. */
|
|
|
|
|
final_offset = (final_offset /
|
|
|
|
|
GET_MODE_SIZE (GET_MODE (*r->subreg_loc)));
|
|
|
|
|
final_offset = (final_offset *
|
|
|
|
|
GET_MODE_SIZE (GET_MODE (*r->subreg_loc)));
|
|
|
|
|
|
1992-02-28 11:23:25 +01:00
|
|
|
|
*r->where = SUBREG_REG (reloadreg);
|
Use byte offsets in SUBREGs instead of words.
2001-04-03 Jakub Jelinek <jakub@redhat.com>
David S. Miller <davem@pierdol.cobaltmicro.com>
Andrew MacLeod <amacleod@redhat.com>
Use byte offsets in SUBREGs instead of words.
* alias.c (nonlocal_mentioned_p): Use subreg_regno function.
* caller-save.c (mark_set_regs): Change callers of subreg_hard_regno
to pass new argument.
(add_stored_regs): Use subreg_regno_offset function.
* calls.c (expand_call): For non-paradoxical SUBREG take endianess
into account.
(precompute_arguments): Use gen_lowpart_SUBREG.
* combine.c (try_combine): Replace explicit XEXP with SUBREG_REG.
(combine_simplify_rtx): Rework to use SUBREG_BYTE.
(simplify_set): Rework to use SUBREG_BYTE.
(expand_field_assignment): Use SUBREG_BYTE.
(make_extraction): Use SUBREG_BYTE.
(if_then_else_cond): Use SUBREG_BYTE.
(apply_distributive_law): Use SUBREG_BYTE and fixup subreg comments.
(gen_lowpart_for_combine): Compute full byte offset.
* cse.c (mention_regs): Use SUBREG_BYTE.
(remove_invalid_subreg_refs): Rework to use SUBREG_BYTE.
(canon_hash): Use SUBREG_BYTE.
(fold_rtx): Pass SUBREG_BYTE div UNITS_PER_WORD to operand_subword.
(gen_lowpart_if_possible): Formatting.
* dbxout.c (dbxout_symbol_location): Compute SUBREG hard regnos
correctly.
* dwarf2out.c (is_pseudo_reg): Fixup explicit XEXP into SUBREG_REG
(mem_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
(loc_descriptor): Fixup explicit XEXP into SUBREG_REG
* dwarfout.c (is_pseudo_reg): Fixup explicit XEXP into SUBREG_REG
(output_mem_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
(output_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
* emit-rtl.c (gen_rtx_SUBREG): New function, used to verify
certain invariants about SUBREGs the compiler creates.
(gen_lowpart_SUBREG): New function.
(subreg_hard_regno): New function to get the final register number.
(gen_lowpart_common): Use SUBREG_BYTE.
(gen_imagpart): Spacing nits.
(subreg_realpart_p): Use SUBREG_BYTE.
(gen_highpart): Use SUBREG_BYTE.
(subreg_lowpart_p): Always compute endian corrected goal offset,
even at the byte level, then compare against that.
(constant_subword): New function, pulled out all constant cases
from operand_subword and changed second argument name to offset.
(operand_subword): Detect non REG/SUBREG/CONCAT/MEM cases early
and call constant_subword to do the work. Return const0_rtx if
looking for a word outside of OP.
(operand_subword_force): Change second arg name to offset.
* expmed.c (store_bit_field): Use SUBREG_BYTE.
(store_split_bit_field): Use SUBREG_BYTE.
(extract_bit_field): Use SUBREG_BYTE.
(extract_split_bit_field): Use SUBREG_BYTE.
(expand_shift): Use SUBREG_BYTE.
* expr.c (store_expr, expand_expr): Use gen_lowpart_SUBREG.
* final.c (alter_subreg) Use subreg_hard_regno and SUBREG_BYTE.
* flow.c (set_noop_p): Use SUBREG_BYTE.
(mark_set_1): Remove ALTER_HARD_SUBREG. Use subreg_regno_offset instead.
* function.c (fixup_var_refs_1): Fixup explicit XEXP into a SUBREG_REG.
(fixup_memory_subreg): Use SUBREG_BYTE and remove byte endian
correction code.
(optimize_bit_field): Use SUBREG_BYTE.
(purge_addressof_1): Use SUBREG_BYTE.
(purge_single_hard_subreg_set): Use subreg_regno_offset function.
(assign_params): Mark arguments SUBREG_PROMOTED_VAR_P if they are
actually promoted by the caller and PROMOTE_FOR_CALLS_ONLY is true.
* gengenrtl.c (special_rtx): Add SUBREG.
* global.c (mark_reg_store): Use SUBREG_BYTE.
(set_preference): Rework to use subreg_regno_offset and SUBREG_BYTE.
* ifcvt (noce_emit_move_insn): Use SUBREG_BYTE.
* integrate.c (copy_rtx_and_substitute): Use SUBREG_BYTE and make sure
final byte offset is congruent to subreg's mode size.
(subst_constants): Use SUBREG_BYTE.
(mark_stores): Use subreg_regno_offset function.
* jump.c (rtx_renumbered_equal_p, true_regnum): Use subreg_regno_offset
function and SUBREG_BYTE.
* local-alloc.c (combine_regs): Use subreg_regno_offset function.
(reg_is_born): Use subreg_hard_regno.
* recog.c (valid_replace_rtx_1): Use SUBREG_BYTE and remove byte
endian correction code. Don't combine subregs unless resulting
offset aligns with type. Fix subreg constant extraction for DImode.
Simplify SUBREG of VOIDmode CONST_DOUBLE.
(general_operand): Remove dead mode_altering_drug code.
(indirect_operand): Use SUBREG_BYTE.
(constrain_operands): Use subreg_regno_offset function.
* reg-stack.c (get_true_reg): Use subreg_regno_offset function.
* regmove.c (regmove_optimize): Use SUBREG_BYTE.
(optimize_reg_copy_3): Use gen_lowpart_SUBREG.
* regs.h (REG_SIZE): Allow target to override.
(REGMODE_NATURAL_SIZE): New macro which target can override.
* reload.c (reload_inner_reg_of_subreg): subreg_regno should be used
on the entire subreg rtx.
(push_reload): Use SUBREG_BYTE in comments and code.
(find_dummy_reload): Use subreg_regno_offset. Only adjust offsets
for hard registers inside subregs.
(operands_match_p): Use subreg_regno_offset.
(find_reloads): Use SUBREG_BYTE and only advance offset for subregs
containing hard regs.
(find_reload_toplev): Use SUBREG_BYTE. Remove byte endian
corrections when fixing up MEM subregs.
(find_reloads_address_1): Use SUBREG_BYTE, subreg_regno, and
subreg_regno_offset where appropriate.
(find_reloads_subreg_address): Use SUBREG_BYTE. Remove
byte endian corrections when fixing up MEM subregs.
(subst_reloads): When combining two subregs, make sure final
offset is congruent to subreg's mode size.
(find_replacement): Use SUBREG_BYTE and subreg_regno_offset.
(refers_to_regno_for_reload_p): Use subreg_regno.
(reg_overlap_mentioned_for_reload_p): Use subreg_regno_offset.
* reload1.c (eliminate_regs) Use SUBREG_BYTE. Remove byte endian
correction code for memory subreg fixups.
(forget_old_reload_1): Use subreg_regno_offset.
(choose_reload_regs): Use subreg_regno.
(emit_input_reload_insns): Use SUBREG_BYTE.
(reload_combine_note_store): Use subreg_regno_offset.
(move2add_note_store): Use subreg_regno_offset.
* resource.c (update_live_status, mark_referenced_resources): Use
subreg_regno function.
(mark_set_resources): Use subreg_regno function.
* rtl.h (SUBREG_WORD): Rename to SUBREG_BYTE.
(subreg_regno_offset, subreg_regno): Define prototypes.
(subreg_hard_regno, constant_subword, gen_rtx_SUBREG): Newi functions.
(gen_lowpart_SUBREG): Add prototype.
* rtl.texi (subreg): Update to reflect new byte offset representation.
Add mentioning of the effect that BYTES_BIG_ENDIAN has on subregs now.
* rtlanal.c (refers_to_regno_p): Use subreg_regno.
(reg_overlap_mentioned_p): Use subreg_regno.
(replace_regs); Make sure final offset of combined subreg is
congruent to size of subreg's mode.
(subreg_regno_offset): New function.
(subreg_regno): New function.
* sched-vis.c (print_value): Change SUBREG_WORD to SUBREG_BYTE.
* sdbout.c (sdbout_symbol): Compute offset using alter_subreg.
* stmt.c (expand_anon_union_decl): Use gen_lowpart_SUBREG.
* tm.texi (ALTER_HARD_SUBREG): Remove, it is now dead.
(SUBREG_REGNO_OFFSET): Describe SUBREG_REGNO_OFFSET overrides.
* config/a29k/a29k.c (gpc_reg_operand): Use subreg_regno.
(a29k_get_reloaded_address): Use SUBREG_BYTE.
(print_operand): Use SUBREG_BYTE.
* config/alpha/alpha.c (print_operand_address): Use SUBREG_BYTE.
* config/arm/arm.c (arm_reload_in_hi): Use SUBREG_BYTE.
(arm_reload_out_hi): Use SUBREG_BYTE.
* config/d30v/d30v.c (d30v_split_double): Use subreg_regno_offset
instead of SUBREG_WORD.
(d30v_print_operand_memory_reference): Use subreg_regno_offset.
* config/dsp16xx/dsp16xx.md (extendqihi2, zero_extendqihi2): Fix
SUBREG creation to use byte offset.
* config/h8300/h8300.md (Unnamed HImode zero extraction and 16bit
inverted load insns): Fix explicit rtl subregs to use byte
offsets.
* config/i370/i370.md (cmpstrsi, movstrsi, mulsi3, divsi3,
udivsi3, umodsi3): Generate SUBREGs with byte offsets.
* config/i860/i860.c (single_insn_src_p): Use SUBREG_BYTE.
* config/i860/i860.md (mulsi3_big): Fixup explicit SUBREGs in rtl
to use byte offsets.
(unnamed fmlow.dd insn): Fixup SUBREGS to use byte offsets.
* config/i960/i960.md (extendhisi2): Generate SUBREGs with byte
offsets, also make sure it is congruent to SUBREG's mode size.
(extendqisi2, extendqihi2, zero_extendhisi2, zero_extendqisi2,
unnamed ldob insn): Generate SUBREGs with byte offset.
(zero_extendqihi2): SUBREG's are byte offsets.
* config/m68hc11/m68hc11.c (m68hc11_gen_lowpart): Use SUBREG_BYTE.
(m68hc11_gen_highpart): Use SUBREG_BYTE.
* config/m68k/m68k.md (zero_extendhisi2, zero_extendqihi2,
zero-extendqisi2): Generate SUBREGs with byte offset.
(umulsidi3, mulsidi3, subreghi1ashrdi_const32,
subregsi1ashrdi_const32, subreg1lshrdi_const32): Fixup explicit
subregs in rtl to use byte offsets.
* config/m88k/m88k.md (extendsidi2): fixup subregs to use byte offset.
* config/mips/mips.c (mips_move_1word): Use subreg_regno_offset.
(mips_move_2words): Use subreg_regno_offset.
(mips_secondary_reload_class): Use subreg_regno_offset.
* config/mips/mips.md (DImode plus, minus, move, and logical op
splits): Fixup explicit subregs in rtl to use byte offsets.
* config/mn10200/mn10200.c (print_operand): Use subreg_regno function.
* config/mn10300/mn10300.c (print_operand): Use subreg_regno function.
* config/ns32k/ns32k.md (udivmoddisi4): Fix explicit subregs in
rtl to use byte offsets.
* config/pa/pa.c (emit_move_sequence): Use SUBREG_BYTE.
* config/pa/pa.md (floatunssisf2, floatunssidf2, mulsi3): fix explicit
subregs to use byte offsets.
* config/pdp11/pdp11.md (zero_extendhisi2, modhi3, modhi3+1):
Fixup explicit subregs in rtl to use byte offsets.
* config/romp/romp.c (memory_offset_in_range_p): Use SUBREG_BYTE
and remove byte endian correction code.
* config/sh/sh.c (output_movedouble): Use subreg_regno.
(gen_ashift_hi): Use SUBREG_BYTE.
(regs_used): Use subreg_regno_offset.
(machine_dependent_reorg): Use subreg_regno_offset.
* config/sh/sh.h (INDEX_REGISTER_RTX_P): Use SUBREG_BYTE.
* config/sh/sh.md (DImode and DFmode move splits): Use subreg_regno.
(movdf_i4): Subregs are byte offsets now.
* config/sparc/sparc.c (ultra_find_type): Use SUBREG_BYTE.
* config/sparc/sparc.h (ALTER_HARD_SUBREG): Removed.
(REGMODE_NATURAL_SIZE): Override.
(REG_SIZE): For SUBREG check float mode on SUBREG_REG's mode.
* config/sparc/sparc.md (TFmode move splits): Generate SUBREGs
with byte offsets.
(zero_extendhisi2, zero_extendqidi2_insn, extendhisi2,
extendqihi2, sign_extendqihi2_insn, sign_extendqisi2_insn,
extendqidi2): Generate SUBREGs with byte offsets, also make sure
it is congruent to SUBREG's mode size.
(smulsi3_highpart_v8plus): Fix explicit subregs in rtl to use byte
offsets.
(cmp_siqi_trunc, cmp_siqi_trunc_set, cmp_diqi_trunc,
cmp_diqi_trunc_set, lshrdi3_v8plus+1, lshrdi3_v8plus+2,
lshrdi3_v8plus+3, lshrdi3_v8plus+4): Use proper
SUBREG_BYTE offset for non-paradoxical subregs in patterns.
* config/v850/v850.c (print_operand, output_move_double): Use
subreg_regno function.
Co-Authored-By: Andrew MacLeod <amacleod@redhat.com>
Co-Authored-By: David S. Miller <davem@pierdol.cobaltmicro.com>
From-SVN: r41058
2001-04-03 17:06:12 +02:00
|
|
|
|
SUBREG_BYTE (*r->subreg_loc) = final_offset;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
*r->where = reloadreg;
|
|
|
|
|
}
|
|
|
|
|
/* If reload got no reg and isn't optional, something's wrong. */
|
1999-09-12 16:54:56 +02:00
|
|
|
|
else if (! rld[r->what].optional)
|
1992-02-28 11:23:25 +01:00
|
|
|
|
abort ();
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
2002-03-11 00:51:08 +01:00
|
|
|
|
/* Make a copy of any replacements being done into X and move those
|
|
|
|
|
copies to locations in Y, a copy of X. */
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
copy_replacements (x, y)
|
2002-03-11 00:51:08 +01:00
|
|
|
|
rtx x, y;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
{
|
|
|
|
|
/* We can't support X being a SUBREG because we might then need to know its
|
|
|
|
|
location if something inside it was replaced. */
|
2002-03-11 00:51:08 +01:00
|
|
|
|
if (GET_CODE (x) == SUBREG)
|
1992-02-28 11:23:25 +01:00
|
|
|
|
abort ();
|
|
|
|
|
|
2002-03-11 00:51:08 +01:00
|
|
|
|
copy_replacements_1 (&x, &y, n_replacements);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
copy_replacements_1 (px, py, orig_replacements)
|
|
|
|
|
rtx *px;
|
|
|
|
|
rtx *py;
|
|
|
|
|
int orig_replacements;
|
|
|
|
|
{
|
|
|
|
|
int i, j;
|
|
|
|
|
rtx x, y;
|
|
|
|
|
struct replacement *r;
|
|
|
|
|
enum rtx_code code;
|
|
|
|
|
const char *fmt;
|
|
|
|
|
|
|
|
|
|
for (j = 0; j < orig_replacements; j++)
|
|
|
|
|
{
|
|
|
|
|
if (replacements[j].subreg_loc == px)
|
1992-02-28 11:23:25 +01:00
|
|
|
|
{
|
2002-03-11 00:51:08 +01:00
|
|
|
|
r = &replacements[n_replacements++];
|
|
|
|
|
r->where = replacements[j].where;
|
|
|
|
|
r->subreg_loc = py;
|
|
|
|
|
r->what = replacements[j].what;
|
|
|
|
|
r->mode = replacements[j].mode;
|
|
|
|
|
}
|
|
|
|
|
else if (replacements[j].where == px)
|
|
|
|
|
{
|
|
|
|
|
r = &replacements[n_replacements++];
|
|
|
|
|
r->where = py;
|
|
|
|
|
r->subreg_loc = 0;
|
|
|
|
|
r->what = replacements[j].what;
|
|
|
|
|
r->mode = replacements[j].mode;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
}
|
2002-03-11 00:51:08 +01:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
x = *px;
|
|
|
|
|
y = *py;
|
|
|
|
|
code = GET_CODE (x);
|
|
|
|
|
fmt = GET_RTX_FORMAT (code);
|
|
|
|
|
|
|
|
|
|
for (i = GET_RTX_LENGTH (code) - 1; i >= 0; i--)
|
|
|
|
|
{
|
|
|
|
|
if (fmt[i] == 'e')
|
|
|
|
|
copy_replacements_1 (&XEXP (x, i), &XEXP (y, i), orig_replacements);
|
|
|
|
|
else if (fmt[i] == 'E')
|
|
|
|
|
for (j = XVECLEN (x, i); --j >= 0; )
|
|
|
|
|
copy_replacements_1 (&XVECEXP (x, i, j), &XVECEXP (y, i, j),
|
|
|
|
|
orig_replacements);
|
|
|
|
|
}
|
1992-02-28 11:23:25 +01:00
|
|
|
|
}
|
1998-04-02 04:42:26 +02:00
|
|
|
|
|
|
|
|
|
/* Change any replacements being done to *X to be done to *Y */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
move_replacements (x, y)
|
|
|
|
|
rtx *x;
|
|
|
|
|
rtx *y;
|
|
|
|
|
{
|
|
|
|
|
int i;
|
|
|
|
|
|
|
|
|
|
for (i = 0; i < n_replacements; i++)
|
|
|
|
|
if (replacements[i].subreg_loc == x)
|
|
|
|
|
replacements[i].subreg_loc = y;
|
|
|
|
|
else if (replacements[i].where == x)
|
|
|
|
|
{
|
|
|
|
|
replacements[i].where = y;
|
|
|
|
|
replacements[i].subreg_loc = 0;
|
|
|
|
|
}
|
|
|
|
|
}
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
1992-04-11 20:17:54 +02:00
|
|
|
|
/* If LOC was scheduled to be replaced by something, return the replacement.
|
|
|
|
|
Otherwise, return *LOC. */
|
|
|
|
|
|
|
|
|
|
rtx
|
|
|
|
|
find_replacement (loc)
|
|
|
|
|
rtx *loc;
|
|
|
|
|
{
|
|
|
|
|
struct replacement *r;
|
|
|
|
|
|
|
|
|
|
for (r = &replacements[0]; r < &replacements[n_replacements]; r++)
|
|
|
|
|
{
|
1999-09-12 16:54:56 +02:00
|
|
|
|
rtx reloadreg = rld[r->what].reg_rtx;
|
1992-04-11 20:17:54 +02:00
|
|
|
|
|
|
|
|
|
if (reloadreg && r->where == loc)
|
|
|
|
|
{
|
|
|
|
|
if (r->mode != VOIDmode && GET_MODE (reloadreg) != r->mode)
|
alias.c: Change all uses of gen_rtx(FOO...) to gen_rtx_FOO...
* alias.c: Change all uses of gen_rtx(FOO...) to gen_rtx_FOO;
change gen_rtx(expr...) to gen_rtx_fmt_foo(expr...).
* caller-save.c, calls.c, combine.c, cse.c: Likewise.
* dwarf2out.c, except.c, explow.c, expmed.c, expr.c: Likewise.
* final.c, flow.c, function.c, genpeep.c, haifa-sched.c: Likewise.
* halfpic.c, integrate.c, jump.c, local-alloc.c, loop.c: Likewise.
* profile.c, recog.c, reg-stack.c, regclass.c, regmove.c: Likewise.
* reload.c, reload1.c, reorg.c, sched.c, stmt.c, stupid.c: Likewise.
* unroll.c, varasm.c: Likewise.
* config/alpha/alpha.c, config/alpha/alpha.md: Likewise.
From-SVN: r17357
1998-01-15 00:10:50 +01:00
|
|
|
|
reloadreg = gen_rtx_REG (r->mode, REGNO (reloadreg));
|
1992-04-11 20:17:54 +02:00
|
|
|
|
|
|
|
|
|
return reloadreg;
|
|
|
|
|
}
|
|
|
|
|
else if (reloadreg && r->subreg_loc == loc)
|
|
|
|
|
{
|
|
|
|
|
/* RELOADREG must be either a REG or a SUBREG.
|
|
|
|
|
|
|
|
|
|
??? Is it actually still ever a SUBREG? If so, why? */
|
|
|
|
|
|
|
|
|
|
if (GET_CODE (reloadreg) == REG)
|
alias.c: Change all uses of gen_rtx(FOO...) to gen_rtx_FOO...
* alias.c: Change all uses of gen_rtx(FOO...) to gen_rtx_FOO;
change gen_rtx(expr...) to gen_rtx_fmt_foo(expr...).
* caller-save.c, calls.c, combine.c, cse.c: Likewise.
* dwarf2out.c, except.c, explow.c, expmed.c, expr.c: Likewise.
* final.c, flow.c, function.c, genpeep.c, haifa-sched.c: Likewise.
* halfpic.c, integrate.c, jump.c, local-alloc.c, loop.c: Likewise.
* profile.c, recog.c, reg-stack.c, regclass.c, regmove.c: Likewise.
* reload.c, reload1.c, reorg.c, sched.c, stmt.c, stupid.c: Likewise.
* unroll.c, varasm.c: Likewise.
* config/alpha/alpha.c, config/alpha/alpha.md: Likewise.
From-SVN: r17357
1998-01-15 00:10:50 +01:00
|
|
|
|
return gen_rtx_REG (GET_MODE (*loc),
|
Use byte offsets in SUBREGs instead of words.
2001-04-03 Jakub Jelinek <jakub@redhat.com>
David S. Miller <davem@pierdol.cobaltmicro.com>
Andrew MacLeod <amacleod@redhat.com>
Use byte offsets in SUBREGs instead of words.
* alias.c (nonlocal_mentioned_p): Use subreg_regno function.
* caller-save.c (mark_set_regs): Change callers of subreg_hard_regno
to pass new argument.
(add_stored_regs): Use subreg_regno_offset function.
* calls.c (expand_call): For non-paradoxical SUBREG take endianess
into account.
(precompute_arguments): Use gen_lowpart_SUBREG.
* combine.c (try_combine): Replace explicit XEXP with SUBREG_REG.
(combine_simplify_rtx): Rework to use SUBREG_BYTE.
(simplify_set): Rework to use SUBREG_BYTE.
(expand_field_assignment): Use SUBREG_BYTE.
(make_extraction): Use SUBREG_BYTE.
(if_then_else_cond): Use SUBREG_BYTE.
(apply_distributive_law): Use SUBREG_BYTE and fixup subreg comments.
(gen_lowpart_for_combine): Compute full byte offset.
* cse.c (mention_regs): Use SUBREG_BYTE.
(remove_invalid_subreg_refs): Rework to use SUBREG_BYTE.
(canon_hash): Use SUBREG_BYTE.
(fold_rtx): Pass SUBREG_BYTE div UNITS_PER_WORD to operand_subword.
(gen_lowpart_if_possible): Formatting.
* dbxout.c (dbxout_symbol_location): Compute SUBREG hard regnos
correctly.
* dwarf2out.c (is_pseudo_reg): Fixup explicit XEXP into SUBREG_REG
(mem_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
(loc_descriptor): Fixup explicit XEXP into SUBREG_REG
* dwarfout.c (is_pseudo_reg): Fixup explicit XEXP into SUBREG_REG
(output_mem_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
(output_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
* emit-rtl.c (gen_rtx_SUBREG): New function, used to verify
certain invariants about SUBREGs the compiler creates.
(gen_lowpart_SUBREG): New function.
(subreg_hard_regno): New function to get the final register number.
(gen_lowpart_common): Use SUBREG_BYTE.
(gen_imagpart): Spacing nits.
(subreg_realpart_p): Use SUBREG_BYTE.
(gen_highpart): Use SUBREG_BYTE.
(subreg_lowpart_p): Always compute endian corrected goal offset,
even at the byte level, then compare against that.
(constant_subword): New function, pulled out all constant cases
from operand_subword and changed second argument name to offset.
(operand_subword): Detect non REG/SUBREG/CONCAT/MEM cases early
and call constant_subword to do the work. Return const0_rtx if
looking for a word outside of OP.
(operand_subword_force): Change second arg name to offset.
* expmed.c (store_bit_field): Use SUBREG_BYTE.
(store_split_bit_field): Use SUBREG_BYTE.
(extract_bit_field): Use SUBREG_BYTE.
(extract_split_bit_field): Use SUBREG_BYTE.
(expand_shift): Use SUBREG_BYTE.
* expr.c (store_expr, expand_expr): Use gen_lowpart_SUBREG.
* final.c (alter_subreg) Use subreg_hard_regno and SUBREG_BYTE.
* flow.c (set_noop_p): Use SUBREG_BYTE.
(mark_set_1): Remove ALTER_HARD_SUBREG. Use subreg_regno_offset instead.
* function.c (fixup_var_refs_1): Fixup explicit XEXP into a SUBREG_REG.
(fixup_memory_subreg): Use SUBREG_BYTE and remove byte endian
correction code.
(optimize_bit_field): Use SUBREG_BYTE.
(purge_addressof_1): Use SUBREG_BYTE.
(purge_single_hard_subreg_set): Use subreg_regno_offset function.
(assign_params): Mark arguments SUBREG_PROMOTED_VAR_P if they are
actually promoted by the caller and PROMOTE_FOR_CALLS_ONLY is true.
* gengenrtl.c (special_rtx): Add SUBREG.
* global.c (mark_reg_store): Use SUBREG_BYTE.
(set_preference): Rework to use subreg_regno_offset and SUBREG_BYTE.
* ifcvt (noce_emit_move_insn): Use SUBREG_BYTE.
* integrate.c (copy_rtx_and_substitute): Use SUBREG_BYTE and make sure
final byte offset is congruent to subreg's mode size.
(subst_constants): Use SUBREG_BYTE.
(mark_stores): Use subreg_regno_offset function.
* jump.c (rtx_renumbered_equal_p, true_regnum): Use subreg_regno_offset
function and SUBREG_BYTE.
* local-alloc.c (combine_regs): Use subreg_regno_offset function.
(reg_is_born): Use subreg_hard_regno.
* recog.c (valid_replace_rtx_1): Use SUBREG_BYTE and remove byte
endian correction code. Don't combine subregs unless resulting
offset aligns with type. Fix subreg constant extraction for DImode.
Simplify SUBREG of VOIDmode CONST_DOUBLE.
(general_operand): Remove dead mode_altering_drug code.
(indirect_operand): Use SUBREG_BYTE.
(constrain_operands): Use subreg_regno_offset function.
* reg-stack.c (get_true_reg): Use subreg_regno_offset function.
* regmove.c (regmove_optimize): Use SUBREG_BYTE.
(optimize_reg_copy_3): Use gen_lowpart_SUBREG.
* regs.h (REG_SIZE): Allow target to override.
(REGMODE_NATURAL_SIZE): New macro which target can override.
* reload.c (reload_inner_reg_of_subreg): subreg_regno should be used
on the entire subreg rtx.
(push_reload): Use SUBREG_BYTE in comments and code.
(find_dummy_reload): Use subreg_regno_offset. Only adjust offsets
for hard registers inside subregs.
(operands_match_p): Use subreg_regno_offset.
(find_reloads): Use SUBREG_BYTE and only advance offset for subregs
containing hard regs.
(find_reload_toplev): Use SUBREG_BYTE. Remove byte endian
corrections when fixing up MEM subregs.
(find_reloads_address_1): Use SUBREG_BYTE, subreg_regno, and
subreg_regno_offset where appropriate.
(find_reloads_subreg_address): Use SUBREG_BYTE. Remove
byte endian corrections when fixing up MEM subregs.
(subst_reloads): When combining two subregs, make sure final
offset is congruent to subreg's mode size.
(find_replacement): Use SUBREG_BYTE and subreg_regno_offset.
(refers_to_regno_for_reload_p): Use subreg_regno.
(reg_overlap_mentioned_for_reload_p): Use subreg_regno_offset.
* reload1.c (eliminate_regs) Use SUBREG_BYTE. Remove byte endian
correction code for memory subreg fixups.
(forget_old_reload_1): Use subreg_regno_offset.
(choose_reload_regs): Use subreg_regno.
(emit_input_reload_insns): Use SUBREG_BYTE.
(reload_combine_note_store): Use subreg_regno_offset.
(move2add_note_store): Use subreg_regno_offset.
* resource.c (update_live_status, mark_referenced_resources): Use
subreg_regno function.
(mark_set_resources): Use subreg_regno function.
* rtl.h (SUBREG_WORD): Rename to SUBREG_BYTE.
(subreg_regno_offset, subreg_regno): Define prototypes.
(subreg_hard_regno, constant_subword, gen_rtx_SUBREG): Newi functions.
(gen_lowpart_SUBREG): Add prototype.
* rtl.texi (subreg): Update to reflect new byte offset representation.
Add mentioning of the effect that BYTES_BIG_ENDIAN has on subregs now.
* rtlanal.c (refers_to_regno_p): Use subreg_regno.
(reg_overlap_mentioned_p): Use subreg_regno.
(replace_regs); Make sure final offset of combined subreg is
congruent to size of subreg's mode.
(subreg_regno_offset): New function.
(subreg_regno): New function.
* sched-vis.c (print_value): Change SUBREG_WORD to SUBREG_BYTE.
* sdbout.c (sdbout_symbol): Compute offset using alter_subreg.
* stmt.c (expand_anon_union_decl): Use gen_lowpart_SUBREG.
* tm.texi (ALTER_HARD_SUBREG): Remove, it is now dead.
(SUBREG_REGNO_OFFSET): Describe SUBREG_REGNO_OFFSET overrides.
* config/a29k/a29k.c (gpc_reg_operand): Use subreg_regno.
(a29k_get_reloaded_address): Use SUBREG_BYTE.
(print_operand): Use SUBREG_BYTE.
* config/alpha/alpha.c (print_operand_address): Use SUBREG_BYTE.
* config/arm/arm.c (arm_reload_in_hi): Use SUBREG_BYTE.
(arm_reload_out_hi): Use SUBREG_BYTE.
* config/d30v/d30v.c (d30v_split_double): Use subreg_regno_offset
instead of SUBREG_WORD.
(d30v_print_operand_memory_reference): Use subreg_regno_offset.
* config/dsp16xx/dsp16xx.md (extendqihi2, zero_extendqihi2): Fix
SUBREG creation to use byte offset.
* config/h8300/h8300.md (Unnamed HImode zero extraction and 16bit
inverted load insns): Fix explicit rtl subregs to use byte
offsets.
* config/i370/i370.md (cmpstrsi, movstrsi, mulsi3, divsi3,
udivsi3, umodsi3): Generate SUBREGs with byte offsets.
* config/i860/i860.c (single_insn_src_p): Use SUBREG_BYTE.
* config/i860/i860.md (mulsi3_big): Fixup explicit SUBREGs in rtl
to use byte offsets.
(unnamed fmlow.dd insn): Fixup SUBREGS to use byte offsets.
* config/i960/i960.md (extendhisi2): Generate SUBREGs with byte
offsets, also make sure it is congruent to SUBREG's mode size.
(extendqisi2, extendqihi2, zero_extendhisi2, zero_extendqisi2,
unnamed ldob insn): Generate SUBREGs with byte offset.
(zero_extendqihi2): SUBREG's are byte offsets.
* config/m68hc11/m68hc11.c (m68hc11_gen_lowpart): Use SUBREG_BYTE.
(m68hc11_gen_highpart): Use SUBREG_BYTE.
* config/m68k/m68k.md (zero_extendhisi2, zero_extendqihi2,
zero-extendqisi2): Generate SUBREGs with byte offset.
(umulsidi3, mulsidi3, subreghi1ashrdi_const32,
subregsi1ashrdi_const32, subreg1lshrdi_const32): Fixup explicit
subregs in rtl to use byte offsets.
* config/m88k/m88k.md (extendsidi2): fixup subregs to use byte offset.
* config/mips/mips.c (mips_move_1word): Use subreg_regno_offset.
(mips_move_2words): Use subreg_regno_offset.
(mips_secondary_reload_class): Use subreg_regno_offset.
* config/mips/mips.md (DImode plus, minus, move, and logical op
splits): Fixup explicit subregs in rtl to use byte offsets.
* config/mn10200/mn10200.c (print_operand): Use subreg_regno function.
* config/mn10300/mn10300.c (print_operand): Use subreg_regno function.
* config/ns32k/ns32k.md (udivmoddisi4): Fix explicit subregs in
rtl to use byte offsets.
* config/pa/pa.c (emit_move_sequence): Use SUBREG_BYTE.
* config/pa/pa.md (floatunssisf2, floatunssidf2, mulsi3): fix explicit
subregs to use byte offsets.
* config/pdp11/pdp11.md (zero_extendhisi2, modhi3, modhi3+1):
Fixup explicit subregs in rtl to use byte offsets.
* config/romp/romp.c (memory_offset_in_range_p): Use SUBREG_BYTE
and remove byte endian correction code.
* config/sh/sh.c (output_movedouble): Use subreg_regno.
(gen_ashift_hi): Use SUBREG_BYTE.
(regs_used): Use subreg_regno_offset.
(machine_dependent_reorg): Use subreg_regno_offset.
* config/sh/sh.h (INDEX_REGISTER_RTX_P): Use SUBREG_BYTE.
* config/sh/sh.md (DImode and DFmode move splits): Use subreg_regno.
(movdf_i4): Subregs are byte offsets now.
* config/sparc/sparc.c (ultra_find_type): Use SUBREG_BYTE.
* config/sparc/sparc.h (ALTER_HARD_SUBREG): Removed.
(REGMODE_NATURAL_SIZE): Override.
(REG_SIZE): For SUBREG check float mode on SUBREG_REG's mode.
* config/sparc/sparc.md (TFmode move splits): Generate SUBREGs
with byte offsets.
(zero_extendhisi2, zero_extendqidi2_insn, extendhisi2,
extendqihi2, sign_extendqihi2_insn, sign_extendqisi2_insn,
extendqidi2): Generate SUBREGs with byte offsets, also make sure
it is congruent to SUBREG's mode size.
(smulsi3_highpart_v8plus): Fix explicit subregs in rtl to use byte
offsets.
(cmp_siqi_trunc, cmp_siqi_trunc_set, cmp_diqi_trunc,
cmp_diqi_trunc_set, lshrdi3_v8plus+1, lshrdi3_v8plus+2,
lshrdi3_v8plus+3, lshrdi3_v8plus+4): Use proper
SUBREG_BYTE offset for non-paradoxical subregs in patterns.
* config/v850/v850.c (print_operand, output_move_double): Use
subreg_regno function.
Co-Authored-By: Andrew MacLeod <amacleod@redhat.com>
Co-Authored-By: David S. Miller <davem@pierdol.cobaltmicro.com>
From-SVN: r41058
2001-04-03 17:06:12 +02:00
|
|
|
|
(REGNO (reloadreg) +
|
|
|
|
|
subreg_regno_offset (REGNO (SUBREG_REG (*loc)),
|
|
|
|
|
GET_MODE (SUBREG_REG (*loc)),
|
|
|
|
|
SUBREG_BYTE (*loc),
|
|
|
|
|
GET_MODE (*loc))));
|
1992-04-11 20:17:54 +02:00
|
|
|
|
else if (GET_MODE (reloadreg) == GET_MODE (*loc))
|
|
|
|
|
return reloadreg;
|
|
|
|
|
else
|
Use byte offsets in SUBREGs instead of words.
2001-04-03 Jakub Jelinek <jakub@redhat.com>
David S. Miller <davem@pierdol.cobaltmicro.com>
Andrew MacLeod <amacleod@redhat.com>
Use byte offsets in SUBREGs instead of words.
* alias.c (nonlocal_mentioned_p): Use subreg_regno function.
* caller-save.c (mark_set_regs): Change callers of subreg_hard_regno
to pass new argument.
(add_stored_regs): Use subreg_regno_offset function.
* calls.c (expand_call): For non-paradoxical SUBREG take endianess
into account.
(precompute_arguments): Use gen_lowpart_SUBREG.
* combine.c (try_combine): Replace explicit XEXP with SUBREG_REG.
(combine_simplify_rtx): Rework to use SUBREG_BYTE.
(simplify_set): Rework to use SUBREG_BYTE.
(expand_field_assignment): Use SUBREG_BYTE.
(make_extraction): Use SUBREG_BYTE.
(if_then_else_cond): Use SUBREG_BYTE.
(apply_distributive_law): Use SUBREG_BYTE and fixup subreg comments.
(gen_lowpart_for_combine): Compute full byte offset.
* cse.c (mention_regs): Use SUBREG_BYTE.
(remove_invalid_subreg_refs): Rework to use SUBREG_BYTE.
(canon_hash): Use SUBREG_BYTE.
(fold_rtx): Pass SUBREG_BYTE div UNITS_PER_WORD to operand_subword.
(gen_lowpart_if_possible): Formatting.
* dbxout.c (dbxout_symbol_location): Compute SUBREG hard regnos
correctly.
* dwarf2out.c (is_pseudo_reg): Fixup explicit XEXP into SUBREG_REG
(mem_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
(loc_descriptor): Fixup explicit XEXP into SUBREG_REG
* dwarfout.c (is_pseudo_reg): Fixup explicit XEXP into SUBREG_REG
(output_mem_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
(output_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
* emit-rtl.c (gen_rtx_SUBREG): New function, used to verify
certain invariants about SUBREGs the compiler creates.
(gen_lowpart_SUBREG): New function.
(subreg_hard_regno): New function to get the final register number.
(gen_lowpart_common): Use SUBREG_BYTE.
(gen_imagpart): Spacing nits.
(subreg_realpart_p): Use SUBREG_BYTE.
(gen_highpart): Use SUBREG_BYTE.
(subreg_lowpart_p): Always compute endian corrected goal offset,
even at the byte level, then compare against that.
(constant_subword): New function, pulled out all constant cases
from operand_subword and changed second argument name to offset.
(operand_subword): Detect non REG/SUBREG/CONCAT/MEM cases early
and call constant_subword to do the work. Return const0_rtx if
looking for a word outside of OP.
(operand_subword_force): Change second arg name to offset.
* expmed.c (store_bit_field): Use SUBREG_BYTE.
(store_split_bit_field): Use SUBREG_BYTE.
(extract_bit_field): Use SUBREG_BYTE.
(extract_split_bit_field): Use SUBREG_BYTE.
(expand_shift): Use SUBREG_BYTE.
* expr.c (store_expr, expand_expr): Use gen_lowpart_SUBREG.
* final.c (alter_subreg) Use subreg_hard_regno and SUBREG_BYTE.
* flow.c (set_noop_p): Use SUBREG_BYTE.
(mark_set_1): Remove ALTER_HARD_SUBREG. Use subreg_regno_offset instead.
* function.c (fixup_var_refs_1): Fixup explicit XEXP into a SUBREG_REG.
(fixup_memory_subreg): Use SUBREG_BYTE and remove byte endian
correction code.
(optimize_bit_field): Use SUBREG_BYTE.
(purge_addressof_1): Use SUBREG_BYTE.
(purge_single_hard_subreg_set): Use subreg_regno_offset function.
(assign_params): Mark arguments SUBREG_PROMOTED_VAR_P if they are
actually promoted by the caller and PROMOTE_FOR_CALLS_ONLY is true.
* gengenrtl.c (special_rtx): Add SUBREG.
* global.c (mark_reg_store): Use SUBREG_BYTE.
(set_preference): Rework to use subreg_regno_offset and SUBREG_BYTE.
* ifcvt (noce_emit_move_insn): Use SUBREG_BYTE.
* integrate.c (copy_rtx_and_substitute): Use SUBREG_BYTE and make sure
final byte offset is congruent to subreg's mode size.
(subst_constants): Use SUBREG_BYTE.
(mark_stores): Use subreg_regno_offset function.
* jump.c (rtx_renumbered_equal_p, true_regnum): Use subreg_regno_offset
function and SUBREG_BYTE.
* local-alloc.c (combine_regs): Use subreg_regno_offset function.
(reg_is_born): Use subreg_hard_regno.
* recog.c (valid_replace_rtx_1): Use SUBREG_BYTE and remove byte
endian correction code. Don't combine subregs unless resulting
offset aligns with type. Fix subreg constant extraction for DImode.
Simplify SUBREG of VOIDmode CONST_DOUBLE.
(general_operand): Remove dead mode_altering_drug code.
(indirect_operand): Use SUBREG_BYTE.
(constrain_operands): Use subreg_regno_offset function.
* reg-stack.c (get_true_reg): Use subreg_regno_offset function.
* regmove.c (regmove_optimize): Use SUBREG_BYTE.
(optimize_reg_copy_3): Use gen_lowpart_SUBREG.
* regs.h (REG_SIZE): Allow target to override.
(REGMODE_NATURAL_SIZE): New macro which target can override.
* reload.c (reload_inner_reg_of_subreg): subreg_regno should be used
on the entire subreg rtx.
(push_reload): Use SUBREG_BYTE in comments and code.
(find_dummy_reload): Use subreg_regno_offset. Only adjust offsets
for hard registers inside subregs.
(operands_match_p): Use subreg_regno_offset.
(find_reloads): Use SUBREG_BYTE and only advance offset for subregs
containing hard regs.
(find_reload_toplev): Use SUBREG_BYTE. Remove byte endian
corrections when fixing up MEM subregs.
(find_reloads_address_1): Use SUBREG_BYTE, subreg_regno, and
subreg_regno_offset where appropriate.
(find_reloads_subreg_address): Use SUBREG_BYTE. Remove
byte endian corrections when fixing up MEM subregs.
(subst_reloads): When combining two subregs, make sure final
offset is congruent to subreg's mode size.
(find_replacement): Use SUBREG_BYTE and subreg_regno_offset.
(refers_to_regno_for_reload_p): Use subreg_regno.
(reg_overlap_mentioned_for_reload_p): Use subreg_regno_offset.
* reload1.c (eliminate_regs) Use SUBREG_BYTE. Remove byte endian
correction code for memory subreg fixups.
(forget_old_reload_1): Use subreg_regno_offset.
(choose_reload_regs): Use subreg_regno.
(emit_input_reload_insns): Use SUBREG_BYTE.
(reload_combine_note_store): Use subreg_regno_offset.
(move2add_note_store): Use subreg_regno_offset.
* resource.c (update_live_status, mark_referenced_resources): Use
subreg_regno function.
(mark_set_resources): Use subreg_regno function.
* rtl.h (SUBREG_WORD): Rename to SUBREG_BYTE.
(subreg_regno_offset, subreg_regno): Define prototypes.
(subreg_hard_regno, constant_subword, gen_rtx_SUBREG): Newi functions.
(gen_lowpart_SUBREG): Add prototype.
* rtl.texi (subreg): Update to reflect new byte offset representation.
Add mentioning of the effect that BYTES_BIG_ENDIAN has on subregs now.
* rtlanal.c (refers_to_regno_p): Use subreg_regno.
(reg_overlap_mentioned_p): Use subreg_regno.
(replace_regs); Make sure final offset of combined subreg is
congruent to size of subreg's mode.
(subreg_regno_offset): New function.
(subreg_regno): New function.
* sched-vis.c (print_value): Change SUBREG_WORD to SUBREG_BYTE.
* sdbout.c (sdbout_symbol): Compute offset using alter_subreg.
* stmt.c (expand_anon_union_decl): Use gen_lowpart_SUBREG.
* tm.texi (ALTER_HARD_SUBREG): Remove, it is now dead.
(SUBREG_REGNO_OFFSET): Describe SUBREG_REGNO_OFFSET overrides.
* config/a29k/a29k.c (gpc_reg_operand): Use subreg_regno.
(a29k_get_reloaded_address): Use SUBREG_BYTE.
(print_operand): Use SUBREG_BYTE.
* config/alpha/alpha.c (print_operand_address): Use SUBREG_BYTE.
* config/arm/arm.c (arm_reload_in_hi): Use SUBREG_BYTE.
(arm_reload_out_hi): Use SUBREG_BYTE.
* config/d30v/d30v.c (d30v_split_double): Use subreg_regno_offset
instead of SUBREG_WORD.
(d30v_print_operand_memory_reference): Use subreg_regno_offset.
* config/dsp16xx/dsp16xx.md (extendqihi2, zero_extendqihi2): Fix
SUBREG creation to use byte offset.
* config/h8300/h8300.md (Unnamed HImode zero extraction and 16bit
inverted load insns): Fix explicit rtl subregs to use byte
offsets.
* config/i370/i370.md (cmpstrsi, movstrsi, mulsi3, divsi3,
udivsi3, umodsi3): Generate SUBREGs with byte offsets.
* config/i860/i860.c (single_insn_src_p): Use SUBREG_BYTE.
* config/i860/i860.md (mulsi3_big): Fixup explicit SUBREGs in rtl
to use byte offsets.
(unnamed fmlow.dd insn): Fixup SUBREGS to use byte offsets.
* config/i960/i960.md (extendhisi2): Generate SUBREGs with byte
offsets, also make sure it is congruent to SUBREG's mode size.
(extendqisi2, extendqihi2, zero_extendhisi2, zero_extendqisi2,
unnamed ldob insn): Generate SUBREGs with byte offset.
(zero_extendqihi2): SUBREG's are byte offsets.
* config/m68hc11/m68hc11.c (m68hc11_gen_lowpart): Use SUBREG_BYTE.
(m68hc11_gen_highpart): Use SUBREG_BYTE.
* config/m68k/m68k.md (zero_extendhisi2, zero_extendqihi2,
zero-extendqisi2): Generate SUBREGs with byte offset.
(umulsidi3, mulsidi3, subreghi1ashrdi_const32,
subregsi1ashrdi_const32, subreg1lshrdi_const32): Fixup explicit
subregs in rtl to use byte offsets.
* config/m88k/m88k.md (extendsidi2): fixup subregs to use byte offset.
* config/mips/mips.c (mips_move_1word): Use subreg_regno_offset.
(mips_move_2words): Use subreg_regno_offset.
(mips_secondary_reload_class): Use subreg_regno_offset.
* config/mips/mips.md (DImode plus, minus, move, and logical op
splits): Fixup explicit subregs in rtl to use byte offsets.
* config/mn10200/mn10200.c (print_operand): Use subreg_regno function.
* config/mn10300/mn10300.c (print_operand): Use subreg_regno function.
* config/ns32k/ns32k.md (udivmoddisi4): Fix explicit subregs in
rtl to use byte offsets.
* config/pa/pa.c (emit_move_sequence): Use SUBREG_BYTE.
* config/pa/pa.md (floatunssisf2, floatunssidf2, mulsi3): fix explicit
subregs to use byte offsets.
* config/pdp11/pdp11.md (zero_extendhisi2, modhi3, modhi3+1):
Fixup explicit subregs in rtl to use byte offsets.
* config/romp/romp.c (memory_offset_in_range_p): Use SUBREG_BYTE
and remove byte endian correction code.
* config/sh/sh.c (output_movedouble): Use subreg_regno.
(gen_ashift_hi): Use SUBREG_BYTE.
(regs_used): Use subreg_regno_offset.
(machine_dependent_reorg): Use subreg_regno_offset.
* config/sh/sh.h (INDEX_REGISTER_RTX_P): Use SUBREG_BYTE.
* config/sh/sh.md (DImode and DFmode move splits): Use subreg_regno.
(movdf_i4): Subregs are byte offsets now.
* config/sparc/sparc.c (ultra_find_type): Use SUBREG_BYTE.
* config/sparc/sparc.h (ALTER_HARD_SUBREG): Removed.
(REGMODE_NATURAL_SIZE): Override.
(REG_SIZE): For SUBREG check float mode on SUBREG_REG's mode.
* config/sparc/sparc.md (TFmode move splits): Generate SUBREGs
with byte offsets.
(zero_extendhisi2, zero_extendqidi2_insn, extendhisi2,
extendqihi2, sign_extendqihi2_insn, sign_extendqisi2_insn,
extendqidi2): Generate SUBREGs with byte offsets, also make sure
it is congruent to SUBREG's mode size.
(smulsi3_highpart_v8plus): Fix explicit subregs in rtl to use byte
offsets.
(cmp_siqi_trunc, cmp_siqi_trunc_set, cmp_diqi_trunc,
cmp_diqi_trunc_set, lshrdi3_v8plus+1, lshrdi3_v8plus+2,
lshrdi3_v8plus+3, lshrdi3_v8plus+4): Use proper
SUBREG_BYTE offset for non-paradoxical subregs in patterns.
* config/v850/v850.c (print_operand, output_move_double): Use
subreg_regno function.
Co-Authored-By: Andrew MacLeod <amacleod@redhat.com>
Co-Authored-By: David S. Miller <davem@pierdol.cobaltmicro.com>
From-SVN: r41058
2001-04-03 17:06:12 +02:00
|
|
|
|
{
|
|
|
|
|
int final_offset = SUBREG_BYTE (reloadreg) + SUBREG_BYTE (*loc);
|
|
|
|
|
|
|
|
|
|
/* When working with SUBREGs the rule is that the byte
|
|
|
|
|
offset must be a multiple of the SUBREG's mode. */
|
|
|
|
|
final_offset = (final_offset / GET_MODE_SIZE (GET_MODE (*loc)));
|
|
|
|
|
final_offset = (final_offset * GET_MODE_SIZE (GET_MODE (*loc)));
|
|
|
|
|
return gen_rtx_SUBREG (GET_MODE (*loc), SUBREG_REG (reloadreg),
|
|
|
|
|
final_offset);
|
|
|
|
|
}
|
1992-04-11 20:17:54 +02:00
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
1997-12-07 01:31:01 +01:00
|
|
|
|
/* If *LOC is a PLUS, MINUS, or MULT, see if a replacement is scheduled for
|
|
|
|
|
what's inside and make a new rtl if so. */
|
|
|
|
|
if (GET_CODE (*loc) == PLUS || GET_CODE (*loc) == MINUS
|
|
|
|
|
|| GET_CODE (*loc) == MULT)
|
|
|
|
|
{
|
|
|
|
|
rtx x = find_replacement (&XEXP (*loc, 0));
|
|
|
|
|
rtx y = find_replacement (&XEXP (*loc, 1));
|
|
|
|
|
|
|
|
|
|
if (x != XEXP (*loc, 0) || y != XEXP (*loc, 1))
|
alias.c: Change all uses of gen_rtx(FOO...) to gen_rtx_FOO...
* alias.c: Change all uses of gen_rtx(FOO...) to gen_rtx_FOO;
change gen_rtx(expr...) to gen_rtx_fmt_foo(expr...).
* caller-save.c, calls.c, combine.c, cse.c: Likewise.
* dwarf2out.c, except.c, explow.c, expmed.c, expr.c: Likewise.
* final.c, flow.c, function.c, genpeep.c, haifa-sched.c: Likewise.
* halfpic.c, integrate.c, jump.c, local-alloc.c, loop.c: Likewise.
* profile.c, recog.c, reg-stack.c, regclass.c, regmove.c: Likewise.
* reload.c, reload1.c, reorg.c, sched.c, stmt.c, stupid.c: Likewise.
* unroll.c, varasm.c: Likewise.
* config/alpha/alpha.c, config/alpha/alpha.md: Likewise.
From-SVN: r17357
1998-01-15 00:10:50 +01:00
|
|
|
|
return gen_rtx_fmt_ee (GET_CODE (*loc), GET_MODE (*loc), x, y);
|
1997-12-07 01:31:01 +01:00
|
|
|
|
}
|
|
|
|
|
|
1992-04-11 20:17:54 +02:00
|
|
|
|
return *loc;
|
|
|
|
|
}
|
|
|
|
|
|
1992-02-28 11:23:25 +01:00
|
|
|
|
/* Return nonzero if register in range [REGNO, ENDREGNO)
|
|
|
|
|
appears either explicitly or implicitly in X
|
1993-09-18 13:57:54 +02:00
|
|
|
|
other than being stored into (except for earlyclobber operands).
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
|
|
|
|
References contained within the substructure at LOC do not count.
|
|
|
|
|
LOC may be zero, meaning don't ignore anything.
|
|
|
|
|
|
|
|
|
|
This is similar to refers_to_regno_p in rtlanal.c except that we
|
|
|
|
|
look at equivalences for pseudos that didn't get hard registers. */
|
|
|
|
|
|
|
|
|
|
int
|
|
|
|
|
refers_to_regno_for_reload_p (regno, endregno, x, loc)
|
* Rework fields used to describe positions of bitfields and
modify sizes to be unsigned and use HOST_WIDE_INT.
* alias.c (reg_known_value_size): Now unsigned.
* c-typeck.c (build_unary_op, case ADDR_EXPR): Use byte_position.
(really_start_incremental_init): Use bitsize_zero_node.
(push_init_level, pop_init_level, output_init_element): Likewise.
Use bitsize_unit_node and bitsize_one_node.
(output_pending_init_elements, process_init_element): Likewise.
* combine.c (combine_max_regno, reg_sign_bit_copies): Now unsigned.
(make_extraction): Position and length HOST_WIDE_INT and unsigned
HOST_WIDE_INT, respectively.
(get_pos_from_mask): Passed in value is unsigned HOST_WIDE_INT.
(num_sign_bit_copies): Returns unsigned.
BITWIDTH now unsigned; rework arithmetic.
Remove recursive call from arg to MAX.
(combine_instructions, init_reg_last_arrays): NREGS now unsigned.
(setup_incoming_promotions, can_combine_p, try_combine, simplify_set):
REGNO now unsigned.
(set_nonzero_bit_and_sign_copies): NUM now unsigned.
(find_split_point, expand_compound_operation, make_extraction): LEN
now unsigned HOST_WIDE_INT, POS now HOST_WIDE_INT.
(make_field_assignment): Likewise.
(combine_simplify_rtx): Add cast.
(expand_compound_operation): MODEWIDTH now unsigned; rework arithmetic.
(force_to_mode): WIDTH now unsigned; add cast.
(if_then_else_cond): SIZE now unsigned.
(nonzero_bits): MODE_WIDTH, RESULT_WIDTH, and WIDTH now unsigned.
(extended_count): Now returns unsigned.
(simplify_shift_const): COUNT unsigned; arg is now INPUT_COUNT.
Add SIGNED_COUNT variable; MODE_WORDS and FIRST_COUNT now unsigned.
(simplify_comparison): MODE_WIDTH now unsigned.
(update_table_tick): REGNO and ENDREGNO now unsigned; new var R.
(mark_used_regs_combine): Likewise; rework arithmetic.
(record_value_for_reg): REGNO, ENDREGNO, and I now unsigned.
(record_dead_and_set_regs, reg_dead_at_p, distribute_notes): Likewise.
(record_promoted_value): REGNO now unsigned.
(get_last_value_validate): REGNO, ENDREGNO, and J now unsigned.
(get_last_value): REGNO now unsigned.
(use_crosses_set_p): REGNO and ENDREGNO now unsigned.
(reg_dead_regno, reg_dead_endregno): Now unsigned.
(remove_death): Arg REGNO now unsigned.
(move_deaths): REGNO, DEADREGNO, DEADEND, OUREND, and I now unsigned.
(reg_bitfield_target_p): REGNO, REGNO, ENDREGNO, and ENDTREGNO
now unsigned.
* convert.c (convert_to_integer): INPREC and OUTPREC now unsigned.
* cse.c (struct qty_table_elem): FIRST_REG and LAST_REG now unsigned.
(struct cse_reg_info): REGNO now unsigned.
(cached_regno): Now unsigned.
(REGNO_QTY_VALID_P): Add cast.
(make_new_qty, make_regs_eqv, delete_reg_eqiv): Regno args unsigned.
(remove_invalid_regs): Likewise.
(remove_invalid_subreg_refs): Likewise; arg WORD also unsigned
as are variables END and I.
(get_cse_reg_info, insert): Likewise.
(mention_regs, invalidate_for_call): REGNO, ENDREGNO, and I unsigned.
(canon_hash): Likewise.
(insert_regs, lookup_for_remove): REGNO now unsigned.
(invalidate): REGNO, ENDREGNO, TREGNO, and TENDREGNO now unsigned.
New variable RN.
* dbxout.c (dbxout_parms, dbxout_reg_parms): Don't check for REGNO < 0.
* dwarf2out.c (dwarf2ou_frame_debug_expr): Remove cast.
* emit-rtl.c (subreg_realpart_p): Add cast.
(operand_subword): Arg I is now unsigned as is var PARTWORDS.
(operand_subword_force): Arg I is now unsigned.
* except.c (eh_regs): Variable I is now unsigned.
* explow.c (hard_function_value): BYTES is unsigned HOST_WIDE_INT.
* expmed.c (store_fixed_bit_field): Position is HOST_WIDE_INT;
length is unsigned HOST_WIDE_INT; likewise for internal variables.
(store_split_bit_field, extract_fixed_bit_field): Likewise.
(extract_split_bit_field, store_bit_field, extract_bit_field):
Likewise.
* expr.c (store_constructor_fields, store_constructor, store_field):
Positions are HOST_WIDE_INT and lengths are unsigned HOST_WIDE_INT.
(expand_assignment, expand_expr, expand_expr_unaligned): Likewise.
(do_jump): Likewise.
(move_by_pieces, move_by_pieces_ninsns, clear_by_pieces):
MAX_SIZE is now unsigned.
(emit_group_load): BYTEPOS is HOST_WIDE_INT; BYTELEN is unsigned.
(emit_group_store): Likewise.
(emit_move_insn): I now unsigned.
(store_constructor): Use host_integerp, tree_low_cst, and
bitsize_unit_node.
(get_inner_reference): Return bitpos and bitsize as HOST_WIDE_INT.
Rework all calculations to use trees and new fields.
* expr.h (promoted_input_arg): Regno now unsigned.
(store_bit_field, extract_bit_field): Adjust types of pos and size.
(mark_seen_cases): Arg is HOST_WIDE_INT.
* flow.c (verify_wide_reg_1): REGNO now unsigned.
* fold-const.c (decode_field_reference): Size and pos HOST_WIDE_INT;
precisions and alignments are unsigned.
(optimize_bit_field_compare, fold_truthop): Likewise.
(int_const_binop): Adjust threshold for size_int_type_wide call.
(fold_convert): Likewise.
(size_int_type_wide): Make table larger and fix thinko that only
had half of table used.
(all_ones_mask_p, fold): Precisions are unsigned.
* function.c (put_reg_info_stack): REGNO is unsigned.
(instantiate_decl): Size is HOST_WIDE_INT.
(instantiate_virtual_regs): I is unsigned.
(assign_parms): REGNO, REGNOI, and REGNOR are unsigned.
(promoted_input_arg): REGNO is unsigned.
* function.h (struct function): x_max_parm_reg is now unsigned.
* gcse.c (max_gcse_regno): Now unsigned.
(struct null_pointer_info): min_reg and max_reg now unsigned.
(lookup_set, next_set): REGNO arg now unsigned.
(compute_hash_table): REGNO and I now unsigned.
(handle_avail_expr): regnum_for_replacing now unsigned.
(cprop_insn): REGNO now unsigned.
(delete_null_pointer_checks_1): BLOCK_REG now pointer to unsigned.
* ggc-common.c (ggc_mark_tree_children, case FIELD_DECL): New case.
* global.c (set_preference): SRC_REGNO, DEST_REGNO, and I now unsigned.
* hard-reg-set.h (reg_class_size): Now unsigned.
* integrate.c (mark_stores): LAST_REG and I now unsigned; new UREGNO.
* jump.c (mark_modified_reg): I now unsigned; add cast.
(rtx_equal_for_thread_p): Add cast.
* loop.c (max_reg_before_loop): Now unsigned.
(struct_movable): REGNO now unsigned.
(try_copy_prop): REGNO arg unsigned.
(regs_match_p): XN and YN now unsigned.
(consec_sets_invariant_p, maybe_eliminate_biv): REGNO now unsigned.
(strength_reduce): Likewise; NREGS also unsigned.
(first_increment_giv, last_increment_giv unsigned): Now unsigned.
* loop.h (struct iv_class): REGNO now unsigned.
(max_reg_before_loop, first_increment_giv, last_increment_giv):
Now unsigned.
* machmode.h (mode_size, mode_unit_size): Now unsigned.
(mode_for_size, smallest_mode_for_size): Pass size as unsigned.
* optabs.c (expand_binop): I and NWORDS now unsigned.
(expand_unop): I now unsigned.
* print-tree.c (print_node): Don't print DECL_FIELD_BITPOS, but do
print DECL_FIELD_OFFSET and DECL_FIELD_BIT_OFFSET.
* real.c (significand_size): Now returns unsigned.
* real.h (significand_size): Likewise.
* regclass.c (reg_class_size): Now unsigned.
(choose_hard_reg_mode): Both operands now unsigned.
(record_reg_classes): REGNO and NR now unsigned.
(reg_scan): NREGS now unsigned.
(reg_scan_update): old_max_regno now unsigned.
(reg_scan_mark_refs): Arg MIN_REGNO and var REGNO now unsigned.
* reload.c (find_valid_class): BEST_SIZE now unsigned.
(find_dummy_reload): REGNO, NWORDS, and I now unsigned.
(hard_reg_set_here_p): Args BEG_REGNO and END_REGNO now unsigned.
Likewise for variable R.
(refers_to_regno_for_reload_p): Args REGNO and END_REGNO now unsigned,
as are variables INNER_REGNO and INNER_ENDREGNO; add new variable R.
(find_equiv_reg): Add casts.
(regno_clobbered_p): Arg REGNO now unsigned.
* reload.h (struct reload): NREGS now unsigned.
(refers_to_regno_for_reload_p): Regno args are unsigned.
(regno_clobbered_p): Likewise.
* reload1.c (reg_max_ref_width, spill_stack_slot_width): Now unsigned.
(compute_use_by_pseudos): REGNO now unsigned.
(find_reg): I and J now unsigned, new variable K, and change loop
variables accordingly; THIS_NREGS now unsigned.
(alter_reg): INHERENT_SIZE and TOTAL_SIZE now unsigned.
(spill_hard_reg): REGNO arg now unsigned; add casts.
(forget_old_reloads_1): REGNO, NR, and I now unsigned.
(mark_reload_reg_in_use): Arg REGNO and vars NREGS and I now unsigned.
(clear_reload_reg_in_use): Arg REGNO and vars NREGS, START_REGNO,
END_REGNO, CONFLICT_START, and CONFLICT_END now unsigned.
(reload_reg_free_p, reload_reg_reaches_end_p): Arg REGNO now unsigned.
(choose_reload_regs): MAX_GROUP_SIZE now unsigned.
(emit_reload_insns): REGNO now unsigned.
(reload_cse_move2add): Add cast.
(move2add_note_store): REGNO and I now unsigned; new variable ENDREGNO
and rework loop.
* resource.c (mark_referenced_resources, mark_set_resources): New
variable R; REGNO and LAST_REGNO now unsigned.
(mark_target_live_regs): J and REGNO now unsigned.
* rtl.c (mode_size, mode_unit_size): Now unsigned.
* rtl.h (union rtunion_def): New field rtuint.
(XCUINT): New macro.
(ADDRESSOF_REGNO, REGNO, SUBREG_WORD): New XCUINT.
(operand_subword, operand_subword_force): Word number is unsigned.
(choose_hard_reg_mode): Operands are unsigned.
(refers_to-regno_p, dead_or_set_regno_p): Regno arg is unsigned.
(find_regno_note, find_regno_fusage, replace_regs): Likewise.
(regno_use_in, combine_instructions, remove_death): Likewise.
(reg_scan, reg_scan_update): Likewise.
(extended_count): Return is unsigned.
* rtlanal.c (refers_to_regno_p): Args REGNO and ENDREGNO and vars I,
INNER_REGNO, and INNER_ENDREGNO now unsigned; new variable X_REGNO.
(reg_overlap_mentioned_p): REGNO and ENDREGNO now unsigned.
(reg_set_last_first_regno, reg_set_last_last_regno): Now unsigned.
(reg_reg_last_1): FIRS and LAST now unsigned.
(dead_or_set_p): REGNO, LAST_REGNO, and I now unsigned.
(dead_or_set_regno_p): Arg TEST_REGNO and vars REGNO and ENDREGNO
now unsigned.
(find_regno_note, regno_use_in): Arg REGNO now unsigned.
(find_regno_fusage): Likewise; also var REGNOTE now unsigned.
(find_reg_fusage): Variables REGNO, END_REGNO, and I now unsigned.
(replace_regs): Arg NREGS now unsigned.
* sdbout.c (sdbout_parms, sdbout_reg_parms): Don't check REGNO < 0.
* simplify-rtx.c (simplify_unary_operation): WIDTH now unsigned.
(simplify_binary_operation): Likewise.
(cselib_invalidate_regno): Arg REGNO and variables ENDREGNO, I, and
THIS_LAST now unsigned.
(cselib_record_set): Add cast.
* ssa.c (ssa_max_reg_num): Now unsigned.
(rename_block): REGNO now unsigned.
* stmt.c (expand_return): Bit positions unsigned HOST_WIDE_INT;
sizes now unsigned.
(all_cases_count): Just return -1 not -2.
COUNT, MINVAL, and LASTVAL now HOST_WIDE_INT.
Rework tests to use trees whenever possible.
Use host_integerp and tree_low_cst.
(mark_seen_cases): COUNT arg now HOST_WIDE_INT;
Likewise variable NEXT_NODE_OFFSET; XLO now unsigned.
(check_for_full_enumeration_handing): BYTES_NEEDED, I to HOST_WIDE_INT.
* stor-layout.c (mode_for_size): SIZE arg now unsigned.
(smallest_mode_for_size): Likewise.
(layout_decl): Simplify handing of a specified DECL_SIZE_UNIT.
KNOWN_ALIGN is now an alignment, so simplify code.
Don't turn off DECL_BIT_FIELD if field is BLKmode, but not type.
(start_record_layout): Renamed from new_record_layout_info.
Update to new fields.
(debug_rli, normalize_rli, rli_size_unit_so_far, rli_size_so_far):
New functions.
(place_union_field): Renamed from layout_union_field.
Update to use new fields in rli.
(place_field): Renamed from layout_field.
Major rewrite to use new fields in rli; pass alignment to layout_decl.
(finalize_record_size): Rework to use new fields in rli and handle
union.
(compute_record_mode): Rework to simplify and to use new DECL fields.
(finalize_type_size): Make rounding more consistent.
(finish_union_layout): Deleted.
(layout_type, case VOID_TYPE): Don't set TYPE_SIZE_UNIT either.
(layout_type, case RECORD_TYPE): Call new function names.
(initialize_sizetypes): Set TYPE_IS_SIZETYPE.
(set_sizetype): Set TYPE_IS_SIZETYPE earlier.
(get_best_mode): UNIT is now unsigned; remove casts.
* tree.c (bit_position): Compute from new fields.
(byte_position, int_byte_position): New functions.
(print_type_hash_statistics): Cast to remove warning.
(build_range_type): Use host_integerp and tree_low_cst to try to hash.
(build_index_type): Likewise; make subtype of sizetype.
(build_index_2_type): Pass sizetype to build_range_type.
(build_common_tree_nodes): Use size_int and bitsize_int to
initialize nodes; add bitsize_{zero,one,unit}_node.
* tree.h (DECL_FIELD_CONTEXT): Use FIELD_DECL_CHECK.
(DECL_BIT_FIELD_TYPE, DECL_QUALIFIER, DECL_FCONTEXT): Likewise.
(DECL_PACKED, DECL_BIT_FIELD): Likewise.
(DECL_FIELD_BITPOS): Deleted.
(DECL_FIELD_OFFSET, DECL_FIELD_BIT_OFFSET): New fields.
(DECL_RESULT, DECL_SAVED_INSNS): Use FUNCTION_DECL_CHECK.
(DECL_FRAME_SIZE, DECL_FUNCTION_CODE, DECL_NO_STATIC_CHAIN): Likewise.
(DECL_INLINE, DECL_BUILT_IN_NONANSI, DECL_IS_MALLOC): Likewise.
(DECL_BUILT_IN_CLASS, DECL_STATIC_CONSTRUCTOR): Likewise.
(DECL_STATIC_DESTRUCTOR, DECL_NO_CHECK_MEMORY_USAGE): Likewise.
(DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT, DECL_NO_LIMIT_STACK) Likewise.
(DECL_ORIGINAL_TYPE, TYPE_DECL_SUPPRESS_DEBUG): Use TYPE_DECL_CHECK.
(DECL_ARG_TYPE_AS_WRITEN, DECL_ARG_TYPE): Use PARM_DECL_CHECK.
(DECL_INCOMING_RTL, DECL_TRANSPARENT_UNION): Likewise.
(DECL_ALIGN): Adjust to new field in union.
(DECL_OFFSET_ALIGN): New field.
(DECL_ERROR_ISSUED, DECL_TOO_LATE): Use LABEL_DECL_CHECK.
(DECL_IN_TEXT_SECTION): Use VAR_DECL_CHECK.
(union tree_decl): Add struct for both aligns.
(enum tree_index): Add TI_BITSIZE_{ZERO,ONE,UNIT}.
(bitsize_zero_node, bitsize_one_node, bitsize_unit_node): Added.
(struct record_layout_info): Rework fields to have offset
alignment and byte and bit position.
(start_record_layout, place_field): Renamed from old names.
(rli_size_so_far, rli_size_unit_so_far, normalize_rli): New decls.
(byte_position, int_byte_position): Likewise.
(get_inner_reference): Change types of position and length.
* unroll.c (unroll_loop): New variable R; use for some loops.
MAX_LOCAL_REGNUM and MAXREGNUM now unsigned.
(calculate_giv_inc): Arg REGNO now unsigned.
(copy_loop_body): REGNO and SRC_REGNO now unsigned.
* varasm.c (assemble_variable): Clean up handling of size using
host_integerp and tree_low_cst.
(decode_addr_const): Use byte, not bit, position.
(output_constructor): bitpos and offsets are HOST_WIDE_INT;
use tree_low_cst and int_bit_position.
* objc/objc-act.c (build_ivar_list_initializer): Use byte_position.
* ch/actions.c (check_missing_cases): BYTES_NEEDED is HOST_WIDE_INT.
* ch/typeck.c (expand_constant_to_buffer): Use int_byte_position.
(extract_constant_from_buffer): Likewise.
* cp/class.c (build_vbase_pointer_fields): layout_field now
place_field.
(get_vfield_offset): Use byte_position.
(set_rtti_entry): Set OFFSET to ssizetype zero.
(get_binfo_offset_as_int): Deleted.
(dfs_record_base_offsets): Use tree_low_cst.
(dfs_search_base_offsets): Likewise.
(layout_nonempty_base_or_field): Reflect changes in RLI format
and call byte_position.
(layout_empty_base): Convert offset to ssizetype.
(build_base_field): use rli_size_unit_so_far.
(dfs_propagate_binfo_offsets): Do computation in proper type.
(layout_virtual_bases): Pass ssizetype to propagate_binfo_offsets.
(layout_class_type): Reflect changes in RLI names and fields.
(finish_struct_1): Set DECL_FIELD_OFFSET.
* cp/dump.c (dequeue_and_dump): Call bit_position.
* cp/expr.c (cplus_expand_constant): Use byte_position.
* cp/rtti.c (expand_class_desc): Use bitsize_one_node.
* cp/typeck.c (build_component_addr): Use byte_position and don't
special case for zero offset.
* f/com.c (ffecom_tree_canonize_ptr_): Use bitsize_zero_node.
(ffecom_tree_canonize_ref_): Likewise.
* java/class.c (make_field_value): Use byte_position.
* java/expr.c (JAVA_ARRAY_LENGTH_OFFSET): Use byte_position.
(java_array_data_offset): Likewise.
* java/java-tree.h (MAYBE_CREATE_TYPE_TYPE_LANG_SPECIFIC): Add case to
bzero call.
From-SVN: r32742
2000-03-25 19:34:13 +01:00
|
|
|
|
unsigned int regno, endregno;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
rtx x;
|
|
|
|
|
rtx *loc;
|
|
|
|
|
{
|
* Rework fields used to describe positions of bitfields and
modify sizes to be unsigned and use HOST_WIDE_INT.
* alias.c (reg_known_value_size): Now unsigned.
* c-typeck.c (build_unary_op, case ADDR_EXPR): Use byte_position.
(really_start_incremental_init): Use bitsize_zero_node.
(push_init_level, pop_init_level, output_init_element): Likewise.
Use bitsize_unit_node and bitsize_one_node.
(output_pending_init_elements, process_init_element): Likewise.
* combine.c (combine_max_regno, reg_sign_bit_copies): Now unsigned.
(make_extraction): Position and length HOST_WIDE_INT and unsigned
HOST_WIDE_INT, respectively.
(get_pos_from_mask): Passed in value is unsigned HOST_WIDE_INT.
(num_sign_bit_copies): Returns unsigned.
BITWIDTH now unsigned; rework arithmetic.
Remove recursive call from arg to MAX.
(combine_instructions, init_reg_last_arrays): NREGS now unsigned.
(setup_incoming_promotions, can_combine_p, try_combine, simplify_set):
REGNO now unsigned.
(set_nonzero_bit_and_sign_copies): NUM now unsigned.
(find_split_point, expand_compound_operation, make_extraction): LEN
now unsigned HOST_WIDE_INT, POS now HOST_WIDE_INT.
(make_field_assignment): Likewise.
(combine_simplify_rtx): Add cast.
(expand_compound_operation): MODEWIDTH now unsigned; rework arithmetic.
(force_to_mode): WIDTH now unsigned; add cast.
(if_then_else_cond): SIZE now unsigned.
(nonzero_bits): MODE_WIDTH, RESULT_WIDTH, and WIDTH now unsigned.
(extended_count): Now returns unsigned.
(simplify_shift_const): COUNT unsigned; arg is now INPUT_COUNT.
Add SIGNED_COUNT variable; MODE_WORDS and FIRST_COUNT now unsigned.
(simplify_comparison): MODE_WIDTH now unsigned.
(update_table_tick): REGNO and ENDREGNO now unsigned; new var R.
(mark_used_regs_combine): Likewise; rework arithmetic.
(record_value_for_reg): REGNO, ENDREGNO, and I now unsigned.
(record_dead_and_set_regs, reg_dead_at_p, distribute_notes): Likewise.
(record_promoted_value): REGNO now unsigned.
(get_last_value_validate): REGNO, ENDREGNO, and J now unsigned.
(get_last_value): REGNO now unsigned.
(use_crosses_set_p): REGNO and ENDREGNO now unsigned.
(reg_dead_regno, reg_dead_endregno): Now unsigned.
(remove_death): Arg REGNO now unsigned.
(move_deaths): REGNO, DEADREGNO, DEADEND, OUREND, and I now unsigned.
(reg_bitfield_target_p): REGNO, REGNO, ENDREGNO, and ENDTREGNO
now unsigned.
* convert.c (convert_to_integer): INPREC and OUTPREC now unsigned.
* cse.c (struct qty_table_elem): FIRST_REG and LAST_REG now unsigned.
(struct cse_reg_info): REGNO now unsigned.
(cached_regno): Now unsigned.
(REGNO_QTY_VALID_P): Add cast.
(make_new_qty, make_regs_eqv, delete_reg_eqiv): Regno args unsigned.
(remove_invalid_regs): Likewise.
(remove_invalid_subreg_refs): Likewise; arg WORD also unsigned
as are variables END and I.
(get_cse_reg_info, insert): Likewise.
(mention_regs, invalidate_for_call): REGNO, ENDREGNO, and I unsigned.
(canon_hash): Likewise.
(insert_regs, lookup_for_remove): REGNO now unsigned.
(invalidate): REGNO, ENDREGNO, TREGNO, and TENDREGNO now unsigned.
New variable RN.
* dbxout.c (dbxout_parms, dbxout_reg_parms): Don't check for REGNO < 0.
* dwarf2out.c (dwarf2ou_frame_debug_expr): Remove cast.
* emit-rtl.c (subreg_realpart_p): Add cast.
(operand_subword): Arg I is now unsigned as is var PARTWORDS.
(operand_subword_force): Arg I is now unsigned.
* except.c (eh_regs): Variable I is now unsigned.
* explow.c (hard_function_value): BYTES is unsigned HOST_WIDE_INT.
* expmed.c (store_fixed_bit_field): Position is HOST_WIDE_INT;
length is unsigned HOST_WIDE_INT; likewise for internal variables.
(store_split_bit_field, extract_fixed_bit_field): Likewise.
(extract_split_bit_field, store_bit_field, extract_bit_field):
Likewise.
* expr.c (store_constructor_fields, store_constructor, store_field):
Positions are HOST_WIDE_INT and lengths are unsigned HOST_WIDE_INT.
(expand_assignment, expand_expr, expand_expr_unaligned): Likewise.
(do_jump): Likewise.
(move_by_pieces, move_by_pieces_ninsns, clear_by_pieces):
MAX_SIZE is now unsigned.
(emit_group_load): BYTEPOS is HOST_WIDE_INT; BYTELEN is unsigned.
(emit_group_store): Likewise.
(emit_move_insn): I now unsigned.
(store_constructor): Use host_integerp, tree_low_cst, and
bitsize_unit_node.
(get_inner_reference): Return bitpos and bitsize as HOST_WIDE_INT.
Rework all calculations to use trees and new fields.
* expr.h (promoted_input_arg): Regno now unsigned.
(store_bit_field, extract_bit_field): Adjust types of pos and size.
(mark_seen_cases): Arg is HOST_WIDE_INT.
* flow.c (verify_wide_reg_1): REGNO now unsigned.
* fold-const.c (decode_field_reference): Size and pos HOST_WIDE_INT;
precisions and alignments are unsigned.
(optimize_bit_field_compare, fold_truthop): Likewise.
(int_const_binop): Adjust threshold for size_int_type_wide call.
(fold_convert): Likewise.
(size_int_type_wide): Make table larger and fix thinko that only
had half of table used.
(all_ones_mask_p, fold): Precisions are unsigned.
* function.c (put_reg_info_stack): REGNO is unsigned.
(instantiate_decl): Size is HOST_WIDE_INT.
(instantiate_virtual_regs): I is unsigned.
(assign_parms): REGNO, REGNOI, and REGNOR are unsigned.
(promoted_input_arg): REGNO is unsigned.
* function.h (struct function): x_max_parm_reg is now unsigned.
* gcse.c (max_gcse_regno): Now unsigned.
(struct null_pointer_info): min_reg and max_reg now unsigned.
(lookup_set, next_set): REGNO arg now unsigned.
(compute_hash_table): REGNO and I now unsigned.
(handle_avail_expr): regnum_for_replacing now unsigned.
(cprop_insn): REGNO now unsigned.
(delete_null_pointer_checks_1): BLOCK_REG now pointer to unsigned.
* ggc-common.c (ggc_mark_tree_children, case FIELD_DECL): New case.
* global.c (set_preference): SRC_REGNO, DEST_REGNO, and I now unsigned.
* hard-reg-set.h (reg_class_size): Now unsigned.
* integrate.c (mark_stores): LAST_REG and I now unsigned; new UREGNO.
* jump.c (mark_modified_reg): I now unsigned; add cast.
(rtx_equal_for_thread_p): Add cast.
* loop.c (max_reg_before_loop): Now unsigned.
(struct_movable): REGNO now unsigned.
(try_copy_prop): REGNO arg unsigned.
(regs_match_p): XN and YN now unsigned.
(consec_sets_invariant_p, maybe_eliminate_biv): REGNO now unsigned.
(strength_reduce): Likewise; NREGS also unsigned.
(first_increment_giv, last_increment_giv unsigned): Now unsigned.
* loop.h (struct iv_class): REGNO now unsigned.
(max_reg_before_loop, first_increment_giv, last_increment_giv):
Now unsigned.
* machmode.h (mode_size, mode_unit_size): Now unsigned.
(mode_for_size, smallest_mode_for_size): Pass size as unsigned.
* optabs.c (expand_binop): I and NWORDS now unsigned.
(expand_unop): I now unsigned.
* print-tree.c (print_node): Don't print DECL_FIELD_BITPOS, but do
print DECL_FIELD_OFFSET and DECL_FIELD_BIT_OFFSET.
* real.c (significand_size): Now returns unsigned.
* real.h (significand_size): Likewise.
* regclass.c (reg_class_size): Now unsigned.
(choose_hard_reg_mode): Both operands now unsigned.
(record_reg_classes): REGNO and NR now unsigned.
(reg_scan): NREGS now unsigned.
(reg_scan_update): old_max_regno now unsigned.
(reg_scan_mark_refs): Arg MIN_REGNO and var REGNO now unsigned.
* reload.c (find_valid_class): BEST_SIZE now unsigned.
(find_dummy_reload): REGNO, NWORDS, and I now unsigned.
(hard_reg_set_here_p): Args BEG_REGNO and END_REGNO now unsigned.
Likewise for variable R.
(refers_to_regno_for_reload_p): Args REGNO and END_REGNO now unsigned,
as are variables INNER_REGNO and INNER_ENDREGNO; add new variable R.
(find_equiv_reg): Add casts.
(regno_clobbered_p): Arg REGNO now unsigned.
* reload.h (struct reload): NREGS now unsigned.
(refers_to_regno_for_reload_p): Regno args are unsigned.
(regno_clobbered_p): Likewise.
* reload1.c (reg_max_ref_width, spill_stack_slot_width): Now unsigned.
(compute_use_by_pseudos): REGNO now unsigned.
(find_reg): I and J now unsigned, new variable K, and change loop
variables accordingly; THIS_NREGS now unsigned.
(alter_reg): INHERENT_SIZE and TOTAL_SIZE now unsigned.
(spill_hard_reg): REGNO arg now unsigned; add casts.
(forget_old_reloads_1): REGNO, NR, and I now unsigned.
(mark_reload_reg_in_use): Arg REGNO and vars NREGS and I now unsigned.
(clear_reload_reg_in_use): Arg REGNO and vars NREGS, START_REGNO,
END_REGNO, CONFLICT_START, and CONFLICT_END now unsigned.
(reload_reg_free_p, reload_reg_reaches_end_p): Arg REGNO now unsigned.
(choose_reload_regs): MAX_GROUP_SIZE now unsigned.
(emit_reload_insns): REGNO now unsigned.
(reload_cse_move2add): Add cast.
(move2add_note_store): REGNO and I now unsigned; new variable ENDREGNO
and rework loop.
* resource.c (mark_referenced_resources, mark_set_resources): New
variable R; REGNO and LAST_REGNO now unsigned.
(mark_target_live_regs): J and REGNO now unsigned.
* rtl.c (mode_size, mode_unit_size): Now unsigned.
* rtl.h (union rtunion_def): New field rtuint.
(XCUINT): New macro.
(ADDRESSOF_REGNO, REGNO, SUBREG_WORD): New XCUINT.
(operand_subword, operand_subword_force): Word number is unsigned.
(choose_hard_reg_mode): Operands are unsigned.
(refers_to-regno_p, dead_or_set_regno_p): Regno arg is unsigned.
(find_regno_note, find_regno_fusage, replace_regs): Likewise.
(regno_use_in, combine_instructions, remove_death): Likewise.
(reg_scan, reg_scan_update): Likewise.
(extended_count): Return is unsigned.
* rtlanal.c (refers_to_regno_p): Args REGNO and ENDREGNO and vars I,
INNER_REGNO, and INNER_ENDREGNO now unsigned; new variable X_REGNO.
(reg_overlap_mentioned_p): REGNO and ENDREGNO now unsigned.
(reg_set_last_first_regno, reg_set_last_last_regno): Now unsigned.
(reg_reg_last_1): FIRS and LAST now unsigned.
(dead_or_set_p): REGNO, LAST_REGNO, and I now unsigned.
(dead_or_set_regno_p): Arg TEST_REGNO and vars REGNO and ENDREGNO
now unsigned.
(find_regno_note, regno_use_in): Arg REGNO now unsigned.
(find_regno_fusage): Likewise; also var REGNOTE now unsigned.
(find_reg_fusage): Variables REGNO, END_REGNO, and I now unsigned.
(replace_regs): Arg NREGS now unsigned.
* sdbout.c (sdbout_parms, sdbout_reg_parms): Don't check REGNO < 0.
* simplify-rtx.c (simplify_unary_operation): WIDTH now unsigned.
(simplify_binary_operation): Likewise.
(cselib_invalidate_regno): Arg REGNO and variables ENDREGNO, I, and
THIS_LAST now unsigned.
(cselib_record_set): Add cast.
* ssa.c (ssa_max_reg_num): Now unsigned.
(rename_block): REGNO now unsigned.
* stmt.c (expand_return): Bit positions unsigned HOST_WIDE_INT;
sizes now unsigned.
(all_cases_count): Just return -1 not -2.
COUNT, MINVAL, and LASTVAL now HOST_WIDE_INT.
Rework tests to use trees whenever possible.
Use host_integerp and tree_low_cst.
(mark_seen_cases): COUNT arg now HOST_WIDE_INT;
Likewise variable NEXT_NODE_OFFSET; XLO now unsigned.
(check_for_full_enumeration_handing): BYTES_NEEDED, I to HOST_WIDE_INT.
* stor-layout.c (mode_for_size): SIZE arg now unsigned.
(smallest_mode_for_size): Likewise.
(layout_decl): Simplify handing of a specified DECL_SIZE_UNIT.
KNOWN_ALIGN is now an alignment, so simplify code.
Don't turn off DECL_BIT_FIELD if field is BLKmode, but not type.
(start_record_layout): Renamed from new_record_layout_info.
Update to new fields.
(debug_rli, normalize_rli, rli_size_unit_so_far, rli_size_so_far):
New functions.
(place_union_field): Renamed from layout_union_field.
Update to use new fields in rli.
(place_field): Renamed from layout_field.
Major rewrite to use new fields in rli; pass alignment to layout_decl.
(finalize_record_size): Rework to use new fields in rli and handle
union.
(compute_record_mode): Rework to simplify and to use new DECL fields.
(finalize_type_size): Make rounding more consistent.
(finish_union_layout): Deleted.
(layout_type, case VOID_TYPE): Don't set TYPE_SIZE_UNIT either.
(layout_type, case RECORD_TYPE): Call new function names.
(initialize_sizetypes): Set TYPE_IS_SIZETYPE.
(set_sizetype): Set TYPE_IS_SIZETYPE earlier.
(get_best_mode): UNIT is now unsigned; remove casts.
* tree.c (bit_position): Compute from new fields.
(byte_position, int_byte_position): New functions.
(print_type_hash_statistics): Cast to remove warning.
(build_range_type): Use host_integerp and tree_low_cst to try to hash.
(build_index_type): Likewise; make subtype of sizetype.
(build_index_2_type): Pass sizetype to build_range_type.
(build_common_tree_nodes): Use size_int and bitsize_int to
initialize nodes; add bitsize_{zero,one,unit}_node.
* tree.h (DECL_FIELD_CONTEXT): Use FIELD_DECL_CHECK.
(DECL_BIT_FIELD_TYPE, DECL_QUALIFIER, DECL_FCONTEXT): Likewise.
(DECL_PACKED, DECL_BIT_FIELD): Likewise.
(DECL_FIELD_BITPOS): Deleted.
(DECL_FIELD_OFFSET, DECL_FIELD_BIT_OFFSET): New fields.
(DECL_RESULT, DECL_SAVED_INSNS): Use FUNCTION_DECL_CHECK.
(DECL_FRAME_SIZE, DECL_FUNCTION_CODE, DECL_NO_STATIC_CHAIN): Likewise.
(DECL_INLINE, DECL_BUILT_IN_NONANSI, DECL_IS_MALLOC): Likewise.
(DECL_BUILT_IN_CLASS, DECL_STATIC_CONSTRUCTOR): Likewise.
(DECL_STATIC_DESTRUCTOR, DECL_NO_CHECK_MEMORY_USAGE): Likewise.
(DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT, DECL_NO_LIMIT_STACK) Likewise.
(DECL_ORIGINAL_TYPE, TYPE_DECL_SUPPRESS_DEBUG): Use TYPE_DECL_CHECK.
(DECL_ARG_TYPE_AS_WRITEN, DECL_ARG_TYPE): Use PARM_DECL_CHECK.
(DECL_INCOMING_RTL, DECL_TRANSPARENT_UNION): Likewise.
(DECL_ALIGN): Adjust to new field in union.
(DECL_OFFSET_ALIGN): New field.
(DECL_ERROR_ISSUED, DECL_TOO_LATE): Use LABEL_DECL_CHECK.
(DECL_IN_TEXT_SECTION): Use VAR_DECL_CHECK.
(union tree_decl): Add struct for both aligns.
(enum tree_index): Add TI_BITSIZE_{ZERO,ONE,UNIT}.
(bitsize_zero_node, bitsize_one_node, bitsize_unit_node): Added.
(struct record_layout_info): Rework fields to have offset
alignment and byte and bit position.
(start_record_layout, place_field): Renamed from old names.
(rli_size_so_far, rli_size_unit_so_far, normalize_rli): New decls.
(byte_position, int_byte_position): Likewise.
(get_inner_reference): Change types of position and length.
* unroll.c (unroll_loop): New variable R; use for some loops.
MAX_LOCAL_REGNUM and MAXREGNUM now unsigned.
(calculate_giv_inc): Arg REGNO now unsigned.
(copy_loop_body): REGNO and SRC_REGNO now unsigned.
* varasm.c (assemble_variable): Clean up handling of size using
host_integerp and tree_low_cst.
(decode_addr_const): Use byte, not bit, position.
(output_constructor): bitpos and offsets are HOST_WIDE_INT;
use tree_low_cst and int_bit_position.
* objc/objc-act.c (build_ivar_list_initializer): Use byte_position.
* ch/actions.c (check_missing_cases): BYTES_NEEDED is HOST_WIDE_INT.
* ch/typeck.c (expand_constant_to_buffer): Use int_byte_position.
(extract_constant_from_buffer): Likewise.
* cp/class.c (build_vbase_pointer_fields): layout_field now
place_field.
(get_vfield_offset): Use byte_position.
(set_rtti_entry): Set OFFSET to ssizetype zero.
(get_binfo_offset_as_int): Deleted.
(dfs_record_base_offsets): Use tree_low_cst.
(dfs_search_base_offsets): Likewise.
(layout_nonempty_base_or_field): Reflect changes in RLI format
and call byte_position.
(layout_empty_base): Convert offset to ssizetype.
(build_base_field): use rli_size_unit_so_far.
(dfs_propagate_binfo_offsets): Do computation in proper type.
(layout_virtual_bases): Pass ssizetype to propagate_binfo_offsets.
(layout_class_type): Reflect changes in RLI names and fields.
(finish_struct_1): Set DECL_FIELD_OFFSET.
* cp/dump.c (dequeue_and_dump): Call bit_position.
* cp/expr.c (cplus_expand_constant): Use byte_position.
* cp/rtti.c (expand_class_desc): Use bitsize_one_node.
* cp/typeck.c (build_component_addr): Use byte_position and don't
special case for zero offset.
* f/com.c (ffecom_tree_canonize_ptr_): Use bitsize_zero_node.
(ffecom_tree_canonize_ref_): Likewise.
* java/class.c (make_field_value): Use byte_position.
* java/expr.c (JAVA_ARRAY_LENGTH_OFFSET): Use byte_position.
(java_array_data_offset): Likewise.
* java/java-tree.h (MAYBE_CREATE_TYPE_TYPE_LANG_SPECIFIC): Add case to
bzero call.
From-SVN: r32742
2000-03-25 19:34:13 +01:00
|
|
|
|
int i;
|
|
|
|
|
unsigned int r;
|
|
|
|
|
RTX_CODE code;
|
|
|
|
|
const char *fmt;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
|
|
|
|
if (x == 0)
|
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
|
|
repeat:
|
|
|
|
|
code = GET_CODE (x);
|
|
|
|
|
|
|
|
|
|
switch (code)
|
|
|
|
|
{
|
|
|
|
|
case REG:
|
* Rework fields used to describe positions of bitfields and
modify sizes to be unsigned and use HOST_WIDE_INT.
* alias.c (reg_known_value_size): Now unsigned.
* c-typeck.c (build_unary_op, case ADDR_EXPR): Use byte_position.
(really_start_incremental_init): Use bitsize_zero_node.
(push_init_level, pop_init_level, output_init_element): Likewise.
Use bitsize_unit_node and bitsize_one_node.
(output_pending_init_elements, process_init_element): Likewise.
* combine.c (combine_max_regno, reg_sign_bit_copies): Now unsigned.
(make_extraction): Position and length HOST_WIDE_INT and unsigned
HOST_WIDE_INT, respectively.
(get_pos_from_mask): Passed in value is unsigned HOST_WIDE_INT.
(num_sign_bit_copies): Returns unsigned.
BITWIDTH now unsigned; rework arithmetic.
Remove recursive call from arg to MAX.
(combine_instructions, init_reg_last_arrays): NREGS now unsigned.
(setup_incoming_promotions, can_combine_p, try_combine, simplify_set):
REGNO now unsigned.
(set_nonzero_bit_and_sign_copies): NUM now unsigned.
(find_split_point, expand_compound_operation, make_extraction): LEN
now unsigned HOST_WIDE_INT, POS now HOST_WIDE_INT.
(make_field_assignment): Likewise.
(combine_simplify_rtx): Add cast.
(expand_compound_operation): MODEWIDTH now unsigned; rework arithmetic.
(force_to_mode): WIDTH now unsigned; add cast.
(if_then_else_cond): SIZE now unsigned.
(nonzero_bits): MODE_WIDTH, RESULT_WIDTH, and WIDTH now unsigned.
(extended_count): Now returns unsigned.
(simplify_shift_const): COUNT unsigned; arg is now INPUT_COUNT.
Add SIGNED_COUNT variable; MODE_WORDS and FIRST_COUNT now unsigned.
(simplify_comparison): MODE_WIDTH now unsigned.
(update_table_tick): REGNO and ENDREGNO now unsigned; new var R.
(mark_used_regs_combine): Likewise; rework arithmetic.
(record_value_for_reg): REGNO, ENDREGNO, and I now unsigned.
(record_dead_and_set_regs, reg_dead_at_p, distribute_notes): Likewise.
(record_promoted_value): REGNO now unsigned.
(get_last_value_validate): REGNO, ENDREGNO, and J now unsigned.
(get_last_value): REGNO now unsigned.
(use_crosses_set_p): REGNO and ENDREGNO now unsigned.
(reg_dead_regno, reg_dead_endregno): Now unsigned.
(remove_death): Arg REGNO now unsigned.
(move_deaths): REGNO, DEADREGNO, DEADEND, OUREND, and I now unsigned.
(reg_bitfield_target_p): REGNO, REGNO, ENDREGNO, and ENDTREGNO
now unsigned.
* convert.c (convert_to_integer): INPREC and OUTPREC now unsigned.
* cse.c (struct qty_table_elem): FIRST_REG and LAST_REG now unsigned.
(struct cse_reg_info): REGNO now unsigned.
(cached_regno): Now unsigned.
(REGNO_QTY_VALID_P): Add cast.
(make_new_qty, make_regs_eqv, delete_reg_eqiv): Regno args unsigned.
(remove_invalid_regs): Likewise.
(remove_invalid_subreg_refs): Likewise; arg WORD also unsigned
as are variables END and I.
(get_cse_reg_info, insert): Likewise.
(mention_regs, invalidate_for_call): REGNO, ENDREGNO, and I unsigned.
(canon_hash): Likewise.
(insert_regs, lookup_for_remove): REGNO now unsigned.
(invalidate): REGNO, ENDREGNO, TREGNO, and TENDREGNO now unsigned.
New variable RN.
* dbxout.c (dbxout_parms, dbxout_reg_parms): Don't check for REGNO < 0.
* dwarf2out.c (dwarf2ou_frame_debug_expr): Remove cast.
* emit-rtl.c (subreg_realpart_p): Add cast.
(operand_subword): Arg I is now unsigned as is var PARTWORDS.
(operand_subword_force): Arg I is now unsigned.
* except.c (eh_regs): Variable I is now unsigned.
* explow.c (hard_function_value): BYTES is unsigned HOST_WIDE_INT.
* expmed.c (store_fixed_bit_field): Position is HOST_WIDE_INT;
length is unsigned HOST_WIDE_INT; likewise for internal variables.
(store_split_bit_field, extract_fixed_bit_field): Likewise.
(extract_split_bit_field, store_bit_field, extract_bit_field):
Likewise.
* expr.c (store_constructor_fields, store_constructor, store_field):
Positions are HOST_WIDE_INT and lengths are unsigned HOST_WIDE_INT.
(expand_assignment, expand_expr, expand_expr_unaligned): Likewise.
(do_jump): Likewise.
(move_by_pieces, move_by_pieces_ninsns, clear_by_pieces):
MAX_SIZE is now unsigned.
(emit_group_load): BYTEPOS is HOST_WIDE_INT; BYTELEN is unsigned.
(emit_group_store): Likewise.
(emit_move_insn): I now unsigned.
(store_constructor): Use host_integerp, tree_low_cst, and
bitsize_unit_node.
(get_inner_reference): Return bitpos and bitsize as HOST_WIDE_INT.
Rework all calculations to use trees and new fields.
* expr.h (promoted_input_arg): Regno now unsigned.
(store_bit_field, extract_bit_field): Adjust types of pos and size.
(mark_seen_cases): Arg is HOST_WIDE_INT.
* flow.c (verify_wide_reg_1): REGNO now unsigned.
* fold-const.c (decode_field_reference): Size and pos HOST_WIDE_INT;
precisions and alignments are unsigned.
(optimize_bit_field_compare, fold_truthop): Likewise.
(int_const_binop): Adjust threshold for size_int_type_wide call.
(fold_convert): Likewise.
(size_int_type_wide): Make table larger and fix thinko that only
had half of table used.
(all_ones_mask_p, fold): Precisions are unsigned.
* function.c (put_reg_info_stack): REGNO is unsigned.
(instantiate_decl): Size is HOST_WIDE_INT.
(instantiate_virtual_regs): I is unsigned.
(assign_parms): REGNO, REGNOI, and REGNOR are unsigned.
(promoted_input_arg): REGNO is unsigned.
* function.h (struct function): x_max_parm_reg is now unsigned.
* gcse.c (max_gcse_regno): Now unsigned.
(struct null_pointer_info): min_reg and max_reg now unsigned.
(lookup_set, next_set): REGNO arg now unsigned.
(compute_hash_table): REGNO and I now unsigned.
(handle_avail_expr): regnum_for_replacing now unsigned.
(cprop_insn): REGNO now unsigned.
(delete_null_pointer_checks_1): BLOCK_REG now pointer to unsigned.
* ggc-common.c (ggc_mark_tree_children, case FIELD_DECL): New case.
* global.c (set_preference): SRC_REGNO, DEST_REGNO, and I now unsigned.
* hard-reg-set.h (reg_class_size): Now unsigned.
* integrate.c (mark_stores): LAST_REG and I now unsigned; new UREGNO.
* jump.c (mark_modified_reg): I now unsigned; add cast.
(rtx_equal_for_thread_p): Add cast.
* loop.c (max_reg_before_loop): Now unsigned.
(struct_movable): REGNO now unsigned.
(try_copy_prop): REGNO arg unsigned.
(regs_match_p): XN and YN now unsigned.
(consec_sets_invariant_p, maybe_eliminate_biv): REGNO now unsigned.
(strength_reduce): Likewise; NREGS also unsigned.
(first_increment_giv, last_increment_giv unsigned): Now unsigned.
* loop.h (struct iv_class): REGNO now unsigned.
(max_reg_before_loop, first_increment_giv, last_increment_giv):
Now unsigned.
* machmode.h (mode_size, mode_unit_size): Now unsigned.
(mode_for_size, smallest_mode_for_size): Pass size as unsigned.
* optabs.c (expand_binop): I and NWORDS now unsigned.
(expand_unop): I now unsigned.
* print-tree.c (print_node): Don't print DECL_FIELD_BITPOS, but do
print DECL_FIELD_OFFSET and DECL_FIELD_BIT_OFFSET.
* real.c (significand_size): Now returns unsigned.
* real.h (significand_size): Likewise.
* regclass.c (reg_class_size): Now unsigned.
(choose_hard_reg_mode): Both operands now unsigned.
(record_reg_classes): REGNO and NR now unsigned.
(reg_scan): NREGS now unsigned.
(reg_scan_update): old_max_regno now unsigned.
(reg_scan_mark_refs): Arg MIN_REGNO and var REGNO now unsigned.
* reload.c (find_valid_class): BEST_SIZE now unsigned.
(find_dummy_reload): REGNO, NWORDS, and I now unsigned.
(hard_reg_set_here_p): Args BEG_REGNO and END_REGNO now unsigned.
Likewise for variable R.
(refers_to_regno_for_reload_p): Args REGNO and END_REGNO now unsigned,
as are variables INNER_REGNO and INNER_ENDREGNO; add new variable R.
(find_equiv_reg): Add casts.
(regno_clobbered_p): Arg REGNO now unsigned.
* reload.h (struct reload): NREGS now unsigned.
(refers_to_regno_for_reload_p): Regno args are unsigned.
(regno_clobbered_p): Likewise.
* reload1.c (reg_max_ref_width, spill_stack_slot_width): Now unsigned.
(compute_use_by_pseudos): REGNO now unsigned.
(find_reg): I and J now unsigned, new variable K, and change loop
variables accordingly; THIS_NREGS now unsigned.
(alter_reg): INHERENT_SIZE and TOTAL_SIZE now unsigned.
(spill_hard_reg): REGNO arg now unsigned; add casts.
(forget_old_reloads_1): REGNO, NR, and I now unsigned.
(mark_reload_reg_in_use): Arg REGNO and vars NREGS and I now unsigned.
(clear_reload_reg_in_use): Arg REGNO and vars NREGS, START_REGNO,
END_REGNO, CONFLICT_START, and CONFLICT_END now unsigned.
(reload_reg_free_p, reload_reg_reaches_end_p): Arg REGNO now unsigned.
(choose_reload_regs): MAX_GROUP_SIZE now unsigned.
(emit_reload_insns): REGNO now unsigned.
(reload_cse_move2add): Add cast.
(move2add_note_store): REGNO and I now unsigned; new variable ENDREGNO
and rework loop.
* resource.c (mark_referenced_resources, mark_set_resources): New
variable R; REGNO and LAST_REGNO now unsigned.
(mark_target_live_regs): J and REGNO now unsigned.
* rtl.c (mode_size, mode_unit_size): Now unsigned.
* rtl.h (union rtunion_def): New field rtuint.
(XCUINT): New macro.
(ADDRESSOF_REGNO, REGNO, SUBREG_WORD): New XCUINT.
(operand_subword, operand_subword_force): Word number is unsigned.
(choose_hard_reg_mode): Operands are unsigned.
(refers_to-regno_p, dead_or_set_regno_p): Regno arg is unsigned.
(find_regno_note, find_regno_fusage, replace_regs): Likewise.
(regno_use_in, combine_instructions, remove_death): Likewise.
(reg_scan, reg_scan_update): Likewise.
(extended_count): Return is unsigned.
* rtlanal.c (refers_to_regno_p): Args REGNO and ENDREGNO and vars I,
INNER_REGNO, and INNER_ENDREGNO now unsigned; new variable X_REGNO.
(reg_overlap_mentioned_p): REGNO and ENDREGNO now unsigned.
(reg_set_last_first_regno, reg_set_last_last_regno): Now unsigned.
(reg_reg_last_1): FIRS and LAST now unsigned.
(dead_or_set_p): REGNO, LAST_REGNO, and I now unsigned.
(dead_or_set_regno_p): Arg TEST_REGNO and vars REGNO and ENDREGNO
now unsigned.
(find_regno_note, regno_use_in): Arg REGNO now unsigned.
(find_regno_fusage): Likewise; also var REGNOTE now unsigned.
(find_reg_fusage): Variables REGNO, END_REGNO, and I now unsigned.
(replace_regs): Arg NREGS now unsigned.
* sdbout.c (sdbout_parms, sdbout_reg_parms): Don't check REGNO < 0.
* simplify-rtx.c (simplify_unary_operation): WIDTH now unsigned.
(simplify_binary_operation): Likewise.
(cselib_invalidate_regno): Arg REGNO and variables ENDREGNO, I, and
THIS_LAST now unsigned.
(cselib_record_set): Add cast.
* ssa.c (ssa_max_reg_num): Now unsigned.
(rename_block): REGNO now unsigned.
* stmt.c (expand_return): Bit positions unsigned HOST_WIDE_INT;
sizes now unsigned.
(all_cases_count): Just return -1 not -2.
COUNT, MINVAL, and LASTVAL now HOST_WIDE_INT.
Rework tests to use trees whenever possible.
Use host_integerp and tree_low_cst.
(mark_seen_cases): COUNT arg now HOST_WIDE_INT;
Likewise variable NEXT_NODE_OFFSET; XLO now unsigned.
(check_for_full_enumeration_handing): BYTES_NEEDED, I to HOST_WIDE_INT.
* stor-layout.c (mode_for_size): SIZE arg now unsigned.
(smallest_mode_for_size): Likewise.
(layout_decl): Simplify handing of a specified DECL_SIZE_UNIT.
KNOWN_ALIGN is now an alignment, so simplify code.
Don't turn off DECL_BIT_FIELD if field is BLKmode, but not type.
(start_record_layout): Renamed from new_record_layout_info.
Update to new fields.
(debug_rli, normalize_rli, rli_size_unit_so_far, rli_size_so_far):
New functions.
(place_union_field): Renamed from layout_union_field.
Update to use new fields in rli.
(place_field): Renamed from layout_field.
Major rewrite to use new fields in rli; pass alignment to layout_decl.
(finalize_record_size): Rework to use new fields in rli and handle
union.
(compute_record_mode): Rework to simplify and to use new DECL fields.
(finalize_type_size): Make rounding more consistent.
(finish_union_layout): Deleted.
(layout_type, case VOID_TYPE): Don't set TYPE_SIZE_UNIT either.
(layout_type, case RECORD_TYPE): Call new function names.
(initialize_sizetypes): Set TYPE_IS_SIZETYPE.
(set_sizetype): Set TYPE_IS_SIZETYPE earlier.
(get_best_mode): UNIT is now unsigned; remove casts.
* tree.c (bit_position): Compute from new fields.
(byte_position, int_byte_position): New functions.
(print_type_hash_statistics): Cast to remove warning.
(build_range_type): Use host_integerp and tree_low_cst to try to hash.
(build_index_type): Likewise; make subtype of sizetype.
(build_index_2_type): Pass sizetype to build_range_type.
(build_common_tree_nodes): Use size_int and bitsize_int to
initialize nodes; add bitsize_{zero,one,unit}_node.
* tree.h (DECL_FIELD_CONTEXT): Use FIELD_DECL_CHECK.
(DECL_BIT_FIELD_TYPE, DECL_QUALIFIER, DECL_FCONTEXT): Likewise.
(DECL_PACKED, DECL_BIT_FIELD): Likewise.
(DECL_FIELD_BITPOS): Deleted.
(DECL_FIELD_OFFSET, DECL_FIELD_BIT_OFFSET): New fields.
(DECL_RESULT, DECL_SAVED_INSNS): Use FUNCTION_DECL_CHECK.
(DECL_FRAME_SIZE, DECL_FUNCTION_CODE, DECL_NO_STATIC_CHAIN): Likewise.
(DECL_INLINE, DECL_BUILT_IN_NONANSI, DECL_IS_MALLOC): Likewise.
(DECL_BUILT_IN_CLASS, DECL_STATIC_CONSTRUCTOR): Likewise.
(DECL_STATIC_DESTRUCTOR, DECL_NO_CHECK_MEMORY_USAGE): Likewise.
(DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT, DECL_NO_LIMIT_STACK) Likewise.
(DECL_ORIGINAL_TYPE, TYPE_DECL_SUPPRESS_DEBUG): Use TYPE_DECL_CHECK.
(DECL_ARG_TYPE_AS_WRITEN, DECL_ARG_TYPE): Use PARM_DECL_CHECK.
(DECL_INCOMING_RTL, DECL_TRANSPARENT_UNION): Likewise.
(DECL_ALIGN): Adjust to new field in union.
(DECL_OFFSET_ALIGN): New field.
(DECL_ERROR_ISSUED, DECL_TOO_LATE): Use LABEL_DECL_CHECK.
(DECL_IN_TEXT_SECTION): Use VAR_DECL_CHECK.
(union tree_decl): Add struct for both aligns.
(enum tree_index): Add TI_BITSIZE_{ZERO,ONE,UNIT}.
(bitsize_zero_node, bitsize_one_node, bitsize_unit_node): Added.
(struct record_layout_info): Rework fields to have offset
alignment and byte and bit position.
(start_record_layout, place_field): Renamed from old names.
(rli_size_so_far, rli_size_unit_so_far, normalize_rli): New decls.
(byte_position, int_byte_position): Likewise.
(get_inner_reference): Change types of position and length.
* unroll.c (unroll_loop): New variable R; use for some loops.
MAX_LOCAL_REGNUM and MAXREGNUM now unsigned.
(calculate_giv_inc): Arg REGNO now unsigned.
(copy_loop_body): REGNO and SRC_REGNO now unsigned.
* varasm.c (assemble_variable): Clean up handling of size using
host_integerp and tree_low_cst.
(decode_addr_const): Use byte, not bit, position.
(output_constructor): bitpos and offsets are HOST_WIDE_INT;
use tree_low_cst and int_bit_position.
* objc/objc-act.c (build_ivar_list_initializer): Use byte_position.
* ch/actions.c (check_missing_cases): BYTES_NEEDED is HOST_WIDE_INT.
* ch/typeck.c (expand_constant_to_buffer): Use int_byte_position.
(extract_constant_from_buffer): Likewise.
* cp/class.c (build_vbase_pointer_fields): layout_field now
place_field.
(get_vfield_offset): Use byte_position.
(set_rtti_entry): Set OFFSET to ssizetype zero.
(get_binfo_offset_as_int): Deleted.
(dfs_record_base_offsets): Use tree_low_cst.
(dfs_search_base_offsets): Likewise.
(layout_nonempty_base_or_field): Reflect changes in RLI format
and call byte_position.
(layout_empty_base): Convert offset to ssizetype.
(build_base_field): use rli_size_unit_so_far.
(dfs_propagate_binfo_offsets): Do computation in proper type.
(layout_virtual_bases): Pass ssizetype to propagate_binfo_offsets.
(layout_class_type): Reflect changes in RLI names and fields.
(finish_struct_1): Set DECL_FIELD_OFFSET.
* cp/dump.c (dequeue_and_dump): Call bit_position.
* cp/expr.c (cplus_expand_constant): Use byte_position.
* cp/rtti.c (expand_class_desc): Use bitsize_one_node.
* cp/typeck.c (build_component_addr): Use byte_position and don't
special case for zero offset.
* f/com.c (ffecom_tree_canonize_ptr_): Use bitsize_zero_node.
(ffecom_tree_canonize_ref_): Likewise.
* java/class.c (make_field_value): Use byte_position.
* java/expr.c (JAVA_ARRAY_LENGTH_OFFSET): Use byte_position.
(java_array_data_offset): Likewise.
* java/java-tree.h (MAYBE_CREATE_TYPE_TYPE_LANG_SPECIFIC): Add case to
bzero call.
From-SVN: r32742
2000-03-25 19:34:13 +01:00
|
|
|
|
r = REGNO (x);
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
1992-05-22 23:22:42 +02:00
|
|
|
|
/* If this is a pseudo, a hard register must not have been allocated.
|
|
|
|
|
X must therefore either be a constant or be in memory. */
|
* Rework fields used to describe positions of bitfields and
modify sizes to be unsigned and use HOST_WIDE_INT.
* alias.c (reg_known_value_size): Now unsigned.
* c-typeck.c (build_unary_op, case ADDR_EXPR): Use byte_position.
(really_start_incremental_init): Use bitsize_zero_node.
(push_init_level, pop_init_level, output_init_element): Likewise.
Use bitsize_unit_node and bitsize_one_node.
(output_pending_init_elements, process_init_element): Likewise.
* combine.c (combine_max_regno, reg_sign_bit_copies): Now unsigned.
(make_extraction): Position and length HOST_WIDE_INT and unsigned
HOST_WIDE_INT, respectively.
(get_pos_from_mask): Passed in value is unsigned HOST_WIDE_INT.
(num_sign_bit_copies): Returns unsigned.
BITWIDTH now unsigned; rework arithmetic.
Remove recursive call from arg to MAX.
(combine_instructions, init_reg_last_arrays): NREGS now unsigned.
(setup_incoming_promotions, can_combine_p, try_combine, simplify_set):
REGNO now unsigned.
(set_nonzero_bit_and_sign_copies): NUM now unsigned.
(find_split_point, expand_compound_operation, make_extraction): LEN
now unsigned HOST_WIDE_INT, POS now HOST_WIDE_INT.
(make_field_assignment): Likewise.
(combine_simplify_rtx): Add cast.
(expand_compound_operation): MODEWIDTH now unsigned; rework arithmetic.
(force_to_mode): WIDTH now unsigned; add cast.
(if_then_else_cond): SIZE now unsigned.
(nonzero_bits): MODE_WIDTH, RESULT_WIDTH, and WIDTH now unsigned.
(extended_count): Now returns unsigned.
(simplify_shift_const): COUNT unsigned; arg is now INPUT_COUNT.
Add SIGNED_COUNT variable; MODE_WORDS and FIRST_COUNT now unsigned.
(simplify_comparison): MODE_WIDTH now unsigned.
(update_table_tick): REGNO and ENDREGNO now unsigned; new var R.
(mark_used_regs_combine): Likewise; rework arithmetic.
(record_value_for_reg): REGNO, ENDREGNO, and I now unsigned.
(record_dead_and_set_regs, reg_dead_at_p, distribute_notes): Likewise.
(record_promoted_value): REGNO now unsigned.
(get_last_value_validate): REGNO, ENDREGNO, and J now unsigned.
(get_last_value): REGNO now unsigned.
(use_crosses_set_p): REGNO and ENDREGNO now unsigned.
(reg_dead_regno, reg_dead_endregno): Now unsigned.
(remove_death): Arg REGNO now unsigned.
(move_deaths): REGNO, DEADREGNO, DEADEND, OUREND, and I now unsigned.
(reg_bitfield_target_p): REGNO, REGNO, ENDREGNO, and ENDTREGNO
now unsigned.
* convert.c (convert_to_integer): INPREC and OUTPREC now unsigned.
* cse.c (struct qty_table_elem): FIRST_REG and LAST_REG now unsigned.
(struct cse_reg_info): REGNO now unsigned.
(cached_regno): Now unsigned.
(REGNO_QTY_VALID_P): Add cast.
(make_new_qty, make_regs_eqv, delete_reg_eqiv): Regno args unsigned.
(remove_invalid_regs): Likewise.
(remove_invalid_subreg_refs): Likewise; arg WORD also unsigned
as are variables END and I.
(get_cse_reg_info, insert): Likewise.
(mention_regs, invalidate_for_call): REGNO, ENDREGNO, and I unsigned.
(canon_hash): Likewise.
(insert_regs, lookup_for_remove): REGNO now unsigned.
(invalidate): REGNO, ENDREGNO, TREGNO, and TENDREGNO now unsigned.
New variable RN.
* dbxout.c (dbxout_parms, dbxout_reg_parms): Don't check for REGNO < 0.
* dwarf2out.c (dwarf2ou_frame_debug_expr): Remove cast.
* emit-rtl.c (subreg_realpart_p): Add cast.
(operand_subword): Arg I is now unsigned as is var PARTWORDS.
(operand_subword_force): Arg I is now unsigned.
* except.c (eh_regs): Variable I is now unsigned.
* explow.c (hard_function_value): BYTES is unsigned HOST_WIDE_INT.
* expmed.c (store_fixed_bit_field): Position is HOST_WIDE_INT;
length is unsigned HOST_WIDE_INT; likewise for internal variables.
(store_split_bit_field, extract_fixed_bit_field): Likewise.
(extract_split_bit_field, store_bit_field, extract_bit_field):
Likewise.
* expr.c (store_constructor_fields, store_constructor, store_field):
Positions are HOST_WIDE_INT and lengths are unsigned HOST_WIDE_INT.
(expand_assignment, expand_expr, expand_expr_unaligned): Likewise.
(do_jump): Likewise.
(move_by_pieces, move_by_pieces_ninsns, clear_by_pieces):
MAX_SIZE is now unsigned.
(emit_group_load): BYTEPOS is HOST_WIDE_INT; BYTELEN is unsigned.
(emit_group_store): Likewise.
(emit_move_insn): I now unsigned.
(store_constructor): Use host_integerp, tree_low_cst, and
bitsize_unit_node.
(get_inner_reference): Return bitpos and bitsize as HOST_WIDE_INT.
Rework all calculations to use trees and new fields.
* expr.h (promoted_input_arg): Regno now unsigned.
(store_bit_field, extract_bit_field): Adjust types of pos and size.
(mark_seen_cases): Arg is HOST_WIDE_INT.
* flow.c (verify_wide_reg_1): REGNO now unsigned.
* fold-const.c (decode_field_reference): Size and pos HOST_WIDE_INT;
precisions and alignments are unsigned.
(optimize_bit_field_compare, fold_truthop): Likewise.
(int_const_binop): Adjust threshold for size_int_type_wide call.
(fold_convert): Likewise.
(size_int_type_wide): Make table larger and fix thinko that only
had half of table used.
(all_ones_mask_p, fold): Precisions are unsigned.
* function.c (put_reg_info_stack): REGNO is unsigned.
(instantiate_decl): Size is HOST_WIDE_INT.
(instantiate_virtual_regs): I is unsigned.
(assign_parms): REGNO, REGNOI, and REGNOR are unsigned.
(promoted_input_arg): REGNO is unsigned.
* function.h (struct function): x_max_parm_reg is now unsigned.
* gcse.c (max_gcse_regno): Now unsigned.
(struct null_pointer_info): min_reg and max_reg now unsigned.
(lookup_set, next_set): REGNO arg now unsigned.
(compute_hash_table): REGNO and I now unsigned.
(handle_avail_expr): regnum_for_replacing now unsigned.
(cprop_insn): REGNO now unsigned.
(delete_null_pointer_checks_1): BLOCK_REG now pointer to unsigned.
* ggc-common.c (ggc_mark_tree_children, case FIELD_DECL): New case.
* global.c (set_preference): SRC_REGNO, DEST_REGNO, and I now unsigned.
* hard-reg-set.h (reg_class_size): Now unsigned.
* integrate.c (mark_stores): LAST_REG and I now unsigned; new UREGNO.
* jump.c (mark_modified_reg): I now unsigned; add cast.
(rtx_equal_for_thread_p): Add cast.
* loop.c (max_reg_before_loop): Now unsigned.
(struct_movable): REGNO now unsigned.
(try_copy_prop): REGNO arg unsigned.
(regs_match_p): XN and YN now unsigned.
(consec_sets_invariant_p, maybe_eliminate_biv): REGNO now unsigned.
(strength_reduce): Likewise; NREGS also unsigned.
(first_increment_giv, last_increment_giv unsigned): Now unsigned.
* loop.h (struct iv_class): REGNO now unsigned.
(max_reg_before_loop, first_increment_giv, last_increment_giv):
Now unsigned.
* machmode.h (mode_size, mode_unit_size): Now unsigned.
(mode_for_size, smallest_mode_for_size): Pass size as unsigned.
* optabs.c (expand_binop): I and NWORDS now unsigned.
(expand_unop): I now unsigned.
* print-tree.c (print_node): Don't print DECL_FIELD_BITPOS, but do
print DECL_FIELD_OFFSET and DECL_FIELD_BIT_OFFSET.
* real.c (significand_size): Now returns unsigned.
* real.h (significand_size): Likewise.
* regclass.c (reg_class_size): Now unsigned.
(choose_hard_reg_mode): Both operands now unsigned.
(record_reg_classes): REGNO and NR now unsigned.
(reg_scan): NREGS now unsigned.
(reg_scan_update): old_max_regno now unsigned.
(reg_scan_mark_refs): Arg MIN_REGNO and var REGNO now unsigned.
* reload.c (find_valid_class): BEST_SIZE now unsigned.
(find_dummy_reload): REGNO, NWORDS, and I now unsigned.
(hard_reg_set_here_p): Args BEG_REGNO and END_REGNO now unsigned.
Likewise for variable R.
(refers_to_regno_for_reload_p): Args REGNO and END_REGNO now unsigned,
as are variables INNER_REGNO and INNER_ENDREGNO; add new variable R.
(find_equiv_reg): Add casts.
(regno_clobbered_p): Arg REGNO now unsigned.
* reload.h (struct reload): NREGS now unsigned.
(refers_to_regno_for_reload_p): Regno args are unsigned.
(regno_clobbered_p): Likewise.
* reload1.c (reg_max_ref_width, spill_stack_slot_width): Now unsigned.
(compute_use_by_pseudos): REGNO now unsigned.
(find_reg): I and J now unsigned, new variable K, and change loop
variables accordingly; THIS_NREGS now unsigned.
(alter_reg): INHERENT_SIZE and TOTAL_SIZE now unsigned.
(spill_hard_reg): REGNO arg now unsigned; add casts.
(forget_old_reloads_1): REGNO, NR, and I now unsigned.
(mark_reload_reg_in_use): Arg REGNO and vars NREGS and I now unsigned.
(clear_reload_reg_in_use): Arg REGNO and vars NREGS, START_REGNO,
END_REGNO, CONFLICT_START, and CONFLICT_END now unsigned.
(reload_reg_free_p, reload_reg_reaches_end_p): Arg REGNO now unsigned.
(choose_reload_regs): MAX_GROUP_SIZE now unsigned.
(emit_reload_insns): REGNO now unsigned.
(reload_cse_move2add): Add cast.
(move2add_note_store): REGNO and I now unsigned; new variable ENDREGNO
and rework loop.
* resource.c (mark_referenced_resources, mark_set_resources): New
variable R; REGNO and LAST_REGNO now unsigned.
(mark_target_live_regs): J and REGNO now unsigned.
* rtl.c (mode_size, mode_unit_size): Now unsigned.
* rtl.h (union rtunion_def): New field rtuint.
(XCUINT): New macro.
(ADDRESSOF_REGNO, REGNO, SUBREG_WORD): New XCUINT.
(operand_subword, operand_subword_force): Word number is unsigned.
(choose_hard_reg_mode): Operands are unsigned.
(refers_to-regno_p, dead_or_set_regno_p): Regno arg is unsigned.
(find_regno_note, find_regno_fusage, replace_regs): Likewise.
(regno_use_in, combine_instructions, remove_death): Likewise.
(reg_scan, reg_scan_update): Likewise.
(extended_count): Return is unsigned.
* rtlanal.c (refers_to_regno_p): Args REGNO and ENDREGNO and vars I,
INNER_REGNO, and INNER_ENDREGNO now unsigned; new variable X_REGNO.
(reg_overlap_mentioned_p): REGNO and ENDREGNO now unsigned.
(reg_set_last_first_regno, reg_set_last_last_regno): Now unsigned.
(reg_reg_last_1): FIRS and LAST now unsigned.
(dead_or_set_p): REGNO, LAST_REGNO, and I now unsigned.
(dead_or_set_regno_p): Arg TEST_REGNO and vars REGNO and ENDREGNO
now unsigned.
(find_regno_note, regno_use_in): Arg REGNO now unsigned.
(find_regno_fusage): Likewise; also var REGNOTE now unsigned.
(find_reg_fusage): Variables REGNO, END_REGNO, and I now unsigned.
(replace_regs): Arg NREGS now unsigned.
* sdbout.c (sdbout_parms, sdbout_reg_parms): Don't check REGNO < 0.
* simplify-rtx.c (simplify_unary_operation): WIDTH now unsigned.
(simplify_binary_operation): Likewise.
(cselib_invalidate_regno): Arg REGNO and variables ENDREGNO, I, and
THIS_LAST now unsigned.
(cselib_record_set): Add cast.
* ssa.c (ssa_max_reg_num): Now unsigned.
(rename_block): REGNO now unsigned.
* stmt.c (expand_return): Bit positions unsigned HOST_WIDE_INT;
sizes now unsigned.
(all_cases_count): Just return -1 not -2.
COUNT, MINVAL, and LASTVAL now HOST_WIDE_INT.
Rework tests to use trees whenever possible.
Use host_integerp and tree_low_cst.
(mark_seen_cases): COUNT arg now HOST_WIDE_INT;
Likewise variable NEXT_NODE_OFFSET; XLO now unsigned.
(check_for_full_enumeration_handing): BYTES_NEEDED, I to HOST_WIDE_INT.
* stor-layout.c (mode_for_size): SIZE arg now unsigned.
(smallest_mode_for_size): Likewise.
(layout_decl): Simplify handing of a specified DECL_SIZE_UNIT.
KNOWN_ALIGN is now an alignment, so simplify code.
Don't turn off DECL_BIT_FIELD if field is BLKmode, but not type.
(start_record_layout): Renamed from new_record_layout_info.
Update to new fields.
(debug_rli, normalize_rli, rli_size_unit_so_far, rli_size_so_far):
New functions.
(place_union_field): Renamed from layout_union_field.
Update to use new fields in rli.
(place_field): Renamed from layout_field.
Major rewrite to use new fields in rli; pass alignment to layout_decl.
(finalize_record_size): Rework to use new fields in rli and handle
union.
(compute_record_mode): Rework to simplify and to use new DECL fields.
(finalize_type_size): Make rounding more consistent.
(finish_union_layout): Deleted.
(layout_type, case VOID_TYPE): Don't set TYPE_SIZE_UNIT either.
(layout_type, case RECORD_TYPE): Call new function names.
(initialize_sizetypes): Set TYPE_IS_SIZETYPE.
(set_sizetype): Set TYPE_IS_SIZETYPE earlier.
(get_best_mode): UNIT is now unsigned; remove casts.
* tree.c (bit_position): Compute from new fields.
(byte_position, int_byte_position): New functions.
(print_type_hash_statistics): Cast to remove warning.
(build_range_type): Use host_integerp and tree_low_cst to try to hash.
(build_index_type): Likewise; make subtype of sizetype.
(build_index_2_type): Pass sizetype to build_range_type.
(build_common_tree_nodes): Use size_int and bitsize_int to
initialize nodes; add bitsize_{zero,one,unit}_node.
* tree.h (DECL_FIELD_CONTEXT): Use FIELD_DECL_CHECK.
(DECL_BIT_FIELD_TYPE, DECL_QUALIFIER, DECL_FCONTEXT): Likewise.
(DECL_PACKED, DECL_BIT_FIELD): Likewise.
(DECL_FIELD_BITPOS): Deleted.
(DECL_FIELD_OFFSET, DECL_FIELD_BIT_OFFSET): New fields.
(DECL_RESULT, DECL_SAVED_INSNS): Use FUNCTION_DECL_CHECK.
(DECL_FRAME_SIZE, DECL_FUNCTION_CODE, DECL_NO_STATIC_CHAIN): Likewise.
(DECL_INLINE, DECL_BUILT_IN_NONANSI, DECL_IS_MALLOC): Likewise.
(DECL_BUILT_IN_CLASS, DECL_STATIC_CONSTRUCTOR): Likewise.
(DECL_STATIC_DESTRUCTOR, DECL_NO_CHECK_MEMORY_USAGE): Likewise.
(DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT, DECL_NO_LIMIT_STACK) Likewise.
(DECL_ORIGINAL_TYPE, TYPE_DECL_SUPPRESS_DEBUG): Use TYPE_DECL_CHECK.
(DECL_ARG_TYPE_AS_WRITEN, DECL_ARG_TYPE): Use PARM_DECL_CHECK.
(DECL_INCOMING_RTL, DECL_TRANSPARENT_UNION): Likewise.
(DECL_ALIGN): Adjust to new field in union.
(DECL_OFFSET_ALIGN): New field.
(DECL_ERROR_ISSUED, DECL_TOO_LATE): Use LABEL_DECL_CHECK.
(DECL_IN_TEXT_SECTION): Use VAR_DECL_CHECK.
(union tree_decl): Add struct for both aligns.
(enum tree_index): Add TI_BITSIZE_{ZERO,ONE,UNIT}.
(bitsize_zero_node, bitsize_one_node, bitsize_unit_node): Added.
(struct record_layout_info): Rework fields to have offset
alignment and byte and bit position.
(start_record_layout, place_field): Renamed from old names.
(rli_size_so_far, rli_size_unit_so_far, normalize_rli): New decls.
(byte_position, int_byte_position): Likewise.
(get_inner_reference): Change types of position and length.
* unroll.c (unroll_loop): New variable R; use for some loops.
MAX_LOCAL_REGNUM and MAXREGNUM now unsigned.
(calculate_giv_inc): Arg REGNO now unsigned.
(copy_loop_body): REGNO and SRC_REGNO now unsigned.
* varasm.c (assemble_variable): Clean up handling of size using
host_integerp and tree_low_cst.
(decode_addr_const): Use byte, not bit, position.
(output_constructor): bitpos and offsets are HOST_WIDE_INT;
use tree_low_cst and int_bit_position.
* objc/objc-act.c (build_ivar_list_initializer): Use byte_position.
* ch/actions.c (check_missing_cases): BYTES_NEEDED is HOST_WIDE_INT.
* ch/typeck.c (expand_constant_to_buffer): Use int_byte_position.
(extract_constant_from_buffer): Likewise.
* cp/class.c (build_vbase_pointer_fields): layout_field now
place_field.
(get_vfield_offset): Use byte_position.
(set_rtti_entry): Set OFFSET to ssizetype zero.
(get_binfo_offset_as_int): Deleted.
(dfs_record_base_offsets): Use tree_low_cst.
(dfs_search_base_offsets): Likewise.
(layout_nonempty_base_or_field): Reflect changes in RLI format
and call byte_position.
(layout_empty_base): Convert offset to ssizetype.
(build_base_field): use rli_size_unit_so_far.
(dfs_propagate_binfo_offsets): Do computation in proper type.
(layout_virtual_bases): Pass ssizetype to propagate_binfo_offsets.
(layout_class_type): Reflect changes in RLI names and fields.
(finish_struct_1): Set DECL_FIELD_OFFSET.
* cp/dump.c (dequeue_and_dump): Call bit_position.
* cp/expr.c (cplus_expand_constant): Use byte_position.
* cp/rtti.c (expand_class_desc): Use bitsize_one_node.
* cp/typeck.c (build_component_addr): Use byte_position and don't
special case for zero offset.
* f/com.c (ffecom_tree_canonize_ptr_): Use bitsize_zero_node.
(ffecom_tree_canonize_ref_): Likewise.
* java/class.c (make_field_value): Use byte_position.
* java/expr.c (JAVA_ARRAY_LENGTH_OFFSET): Use byte_position.
(java_array_data_offset): Likewise.
* java/java-tree.h (MAYBE_CREATE_TYPE_TYPE_LANG_SPECIFIC): Add case to
bzero call.
From-SVN: r32742
2000-03-25 19:34:13 +01:00
|
|
|
|
if (r >= FIRST_PSEUDO_REGISTER)
|
1992-05-22 23:22:42 +02:00
|
|
|
|
{
|
* Rework fields used to describe positions of bitfields and
modify sizes to be unsigned and use HOST_WIDE_INT.
* alias.c (reg_known_value_size): Now unsigned.
* c-typeck.c (build_unary_op, case ADDR_EXPR): Use byte_position.
(really_start_incremental_init): Use bitsize_zero_node.
(push_init_level, pop_init_level, output_init_element): Likewise.
Use bitsize_unit_node and bitsize_one_node.
(output_pending_init_elements, process_init_element): Likewise.
* combine.c (combine_max_regno, reg_sign_bit_copies): Now unsigned.
(make_extraction): Position and length HOST_WIDE_INT and unsigned
HOST_WIDE_INT, respectively.
(get_pos_from_mask): Passed in value is unsigned HOST_WIDE_INT.
(num_sign_bit_copies): Returns unsigned.
BITWIDTH now unsigned; rework arithmetic.
Remove recursive call from arg to MAX.
(combine_instructions, init_reg_last_arrays): NREGS now unsigned.
(setup_incoming_promotions, can_combine_p, try_combine, simplify_set):
REGNO now unsigned.
(set_nonzero_bit_and_sign_copies): NUM now unsigned.
(find_split_point, expand_compound_operation, make_extraction): LEN
now unsigned HOST_WIDE_INT, POS now HOST_WIDE_INT.
(make_field_assignment): Likewise.
(combine_simplify_rtx): Add cast.
(expand_compound_operation): MODEWIDTH now unsigned; rework arithmetic.
(force_to_mode): WIDTH now unsigned; add cast.
(if_then_else_cond): SIZE now unsigned.
(nonzero_bits): MODE_WIDTH, RESULT_WIDTH, and WIDTH now unsigned.
(extended_count): Now returns unsigned.
(simplify_shift_const): COUNT unsigned; arg is now INPUT_COUNT.
Add SIGNED_COUNT variable; MODE_WORDS and FIRST_COUNT now unsigned.
(simplify_comparison): MODE_WIDTH now unsigned.
(update_table_tick): REGNO and ENDREGNO now unsigned; new var R.
(mark_used_regs_combine): Likewise; rework arithmetic.
(record_value_for_reg): REGNO, ENDREGNO, and I now unsigned.
(record_dead_and_set_regs, reg_dead_at_p, distribute_notes): Likewise.
(record_promoted_value): REGNO now unsigned.
(get_last_value_validate): REGNO, ENDREGNO, and J now unsigned.
(get_last_value): REGNO now unsigned.
(use_crosses_set_p): REGNO and ENDREGNO now unsigned.
(reg_dead_regno, reg_dead_endregno): Now unsigned.
(remove_death): Arg REGNO now unsigned.
(move_deaths): REGNO, DEADREGNO, DEADEND, OUREND, and I now unsigned.
(reg_bitfield_target_p): REGNO, REGNO, ENDREGNO, and ENDTREGNO
now unsigned.
* convert.c (convert_to_integer): INPREC and OUTPREC now unsigned.
* cse.c (struct qty_table_elem): FIRST_REG and LAST_REG now unsigned.
(struct cse_reg_info): REGNO now unsigned.
(cached_regno): Now unsigned.
(REGNO_QTY_VALID_P): Add cast.
(make_new_qty, make_regs_eqv, delete_reg_eqiv): Regno args unsigned.
(remove_invalid_regs): Likewise.
(remove_invalid_subreg_refs): Likewise; arg WORD also unsigned
as are variables END and I.
(get_cse_reg_info, insert): Likewise.
(mention_regs, invalidate_for_call): REGNO, ENDREGNO, and I unsigned.
(canon_hash): Likewise.
(insert_regs, lookup_for_remove): REGNO now unsigned.
(invalidate): REGNO, ENDREGNO, TREGNO, and TENDREGNO now unsigned.
New variable RN.
* dbxout.c (dbxout_parms, dbxout_reg_parms): Don't check for REGNO < 0.
* dwarf2out.c (dwarf2ou_frame_debug_expr): Remove cast.
* emit-rtl.c (subreg_realpart_p): Add cast.
(operand_subword): Arg I is now unsigned as is var PARTWORDS.
(operand_subword_force): Arg I is now unsigned.
* except.c (eh_regs): Variable I is now unsigned.
* explow.c (hard_function_value): BYTES is unsigned HOST_WIDE_INT.
* expmed.c (store_fixed_bit_field): Position is HOST_WIDE_INT;
length is unsigned HOST_WIDE_INT; likewise for internal variables.
(store_split_bit_field, extract_fixed_bit_field): Likewise.
(extract_split_bit_field, store_bit_field, extract_bit_field):
Likewise.
* expr.c (store_constructor_fields, store_constructor, store_field):
Positions are HOST_WIDE_INT and lengths are unsigned HOST_WIDE_INT.
(expand_assignment, expand_expr, expand_expr_unaligned): Likewise.
(do_jump): Likewise.
(move_by_pieces, move_by_pieces_ninsns, clear_by_pieces):
MAX_SIZE is now unsigned.
(emit_group_load): BYTEPOS is HOST_WIDE_INT; BYTELEN is unsigned.
(emit_group_store): Likewise.
(emit_move_insn): I now unsigned.
(store_constructor): Use host_integerp, tree_low_cst, and
bitsize_unit_node.
(get_inner_reference): Return bitpos and bitsize as HOST_WIDE_INT.
Rework all calculations to use trees and new fields.
* expr.h (promoted_input_arg): Regno now unsigned.
(store_bit_field, extract_bit_field): Adjust types of pos and size.
(mark_seen_cases): Arg is HOST_WIDE_INT.
* flow.c (verify_wide_reg_1): REGNO now unsigned.
* fold-const.c (decode_field_reference): Size and pos HOST_WIDE_INT;
precisions and alignments are unsigned.
(optimize_bit_field_compare, fold_truthop): Likewise.
(int_const_binop): Adjust threshold for size_int_type_wide call.
(fold_convert): Likewise.
(size_int_type_wide): Make table larger and fix thinko that only
had half of table used.
(all_ones_mask_p, fold): Precisions are unsigned.
* function.c (put_reg_info_stack): REGNO is unsigned.
(instantiate_decl): Size is HOST_WIDE_INT.
(instantiate_virtual_regs): I is unsigned.
(assign_parms): REGNO, REGNOI, and REGNOR are unsigned.
(promoted_input_arg): REGNO is unsigned.
* function.h (struct function): x_max_parm_reg is now unsigned.
* gcse.c (max_gcse_regno): Now unsigned.
(struct null_pointer_info): min_reg and max_reg now unsigned.
(lookup_set, next_set): REGNO arg now unsigned.
(compute_hash_table): REGNO and I now unsigned.
(handle_avail_expr): regnum_for_replacing now unsigned.
(cprop_insn): REGNO now unsigned.
(delete_null_pointer_checks_1): BLOCK_REG now pointer to unsigned.
* ggc-common.c (ggc_mark_tree_children, case FIELD_DECL): New case.
* global.c (set_preference): SRC_REGNO, DEST_REGNO, and I now unsigned.
* hard-reg-set.h (reg_class_size): Now unsigned.
* integrate.c (mark_stores): LAST_REG and I now unsigned; new UREGNO.
* jump.c (mark_modified_reg): I now unsigned; add cast.
(rtx_equal_for_thread_p): Add cast.
* loop.c (max_reg_before_loop): Now unsigned.
(struct_movable): REGNO now unsigned.
(try_copy_prop): REGNO arg unsigned.
(regs_match_p): XN and YN now unsigned.
(consec_sets_invariant_p, maybe_eliminate_biv): REGNO now unsigned.
(strength_reduce): Likewise; NREGS also unsigned.
(first_increment_giv, last_increment_giv unsigned): Now unsigned.
* loop.h (struct iv_class): REGNO now unsigned.
(max_reg_before_loop, first_increment_giv, last_increment_giv):
Now unsigned.
* machmode.h (mode_size, mode_unit_size): Now unsigned.
(mode_for_size, smallest_mode_for_size): Pass size as unsigned.
* optabs.c (expand_binop): I and NWORDS now unsigned.
(expand_unop): I now unsigned.
* print-tree.c (print_node): Don't print DECL_FIELD_BITPOS, but do
print DECL_FIELD_OFFSET and DECL_FIELD_BIT_OFFSET.
* real.c (significand_size): Now returns unsigned.
* real.h (significand_size): Likewise.
* regclass.c (reg_class_size): Now unsigned.
(choose_hard_reg_mode): Both operands now unsigned.
(record_reg_classes): REGNO and NR now unsigned.
(reg_scan): NREGS now unsigned.
(reg_scan_update): old_max_regno now unsigned.
(reg_scan_mark_refs): Arg MIN_REGNO and var REGNO now unsigned.
* reload.c (find_valid_class): BEST_SIZE now unsigned.
(find_dummy_reload): REGNO, NWORDS, and I now unsigned.
(hard_reg_set_here_p): Args BEG_REGNO and END_REGNO now unsigned.
Likewise for variable R.
(refers_to_regno_for_reload_p): Args REGNO and END_REGNO now unsigned,
as are variables INNER_REGNO and INNER_ENDREGNO; add new variable R.
(find_equiv_reg): Add casts.
(regno_clobbered_p): Arg REGNO now unsigned.
* reload.h (struct reload): NREGS now unsigned.
(refers_to_regno_for_reload_p): Regno args are unsigned.
(regno_clobbered_p): Likewise.
* reload1.c (reg_max_ref_width, spill_stack_slot_width): Now unsigned.
(compute_use_by_pseudos): REGNO now unsigned.
(find_reg): I and J now unsigned, new variable K, and change loop
variables accordingly; THIS_NREGS now unsigned.
(alter_reg): INHERENT_SIZE and TOTAL_SIZE now unsigned.
(spill_hard_reg): REGNO arg now unsigned; add casts.
(forget_old_reloads_1): REGNO, NR, and I now unsigned.
(mark_reload_reg_in_use): Arg REGNO and vars NREGS and I now unsigned.
(clear_reload_reg_in_use): Arg REGNO and vars NREGS, START_REGNO,
END_REGNO, CONFLICT_START, and CONFLICT_END now unsigned.
(reload_reg_free_p, reload_reg_reaches_end_p): Arg REGNO now unsigned.
(choose_reload_regs): MAX_GROUP_SIZE now unsigned.
(emit_reload_insns): REGNO now unsigned.
(reload_cse_move2add): Add cast.
(move2add_note_store): REGNO and I now unsigned; new variable ENDREGNO
and rework loop.
* resource.c (mark_referenced_resources, mark_set_resources): New
variable R; REGNO and LAST_REGNO now unsigned.
(mark_target_live_regs): J and REGNO now unsigned.
* rtl.c (mode_size, mode_unit_size): Now unsigned.
* rtl.h (union rtunion_def): New field rtuint.
(XCUINT): New macro.
(ADDRESSOF_REGNO, REGNO, SUBREG_WORD): New XCUINT.
(operand_subword, operand_subword_force): Word number is unsigned.
(choose_hard_reg_mode): Operands are unsigned.
(refers_to-regno_p, dead_or_set_regno_p): Regno arg is unsigned.
(find_regno_note, find_regno_fusage, replace_regs): Likewise.
(regno_use_in, combine_instructions, remove_death): Likewise.
(reg_scan, reg_scan_update): Likewise.
(extended_count): Return is unsigned.
* rtlanal.c (refers_to_regno_p): Args REGNO and ENDREGNO and vars I,
INNER_REGNO, and INNER_ENDREGNO now unsigned; new variable X_REGNO.
(reg_overlap_mentioned_p): REGNO and ENDREGNO now unsigned.
(reg_set_last_first_regno, reg_set_last_last_regno): Now unsigned.
(reg_reg_last_1): FIRS and LAST now unsigned.
(dead_or_set_p): REGNO, LAST_REGNO, and I now unsigned.
(dead_or_set_regno_p): Arg TEST_REGNO and vars REGNO and ENDREGNO
now unsigned.
(find_regno_note, regno_use_in): Arg REGNO now unsigned.
(find_regno_fusage): Likewise; also var REGNOTE now unsigned.
(find_reg_fusage): Variables REGNO, END_REGNO, and I now unsigned.
(replace_regs): Arg NREGS now unsigned.
* sdbout.c (sdbout_parms, sdbout_reg_parms): Don't check REGNO < 0.
* simplify-rtx.c (simplify_unary_operation): WIDTH now unsigned.
(simplify_binary_operation): Likewise.
(cselib_invalidate_regno): Arg REGNO and variables ENDREGNO, I, and
THIS_LAST now unsigned.
(cselib_record_set): Add cast.
* ssa.c (ssa_max_reg_num): Now unsigned.
(rename_block): REGNO now unsigned.
* stmt.c (expand_return): Bit positions unsigned HOST_WIDE_INT;
sizes now unsigned.
(all_cases_count): Just return -1 not -2.
COUNT, MINVAL, and LASTVAL now HOST_WIDE_INT.
Rework tests to use trees whenever possible.
Use host_integerp and tree_low_cst.
(mark_seen_cases): COUNT arg now HOST_WIDE_INT;
Likewise variable NEXT_NODE_OFFSET; XLO now unsigned.
(check_for_full_enumeration_handing): BYTES_NEEDED, I to HOST_WIDE_INT.
* stor-layout.c (mode_for_size): SIZE arg now unsigned.
(smallest_mode_for_size): Likewise.
(layout_decl): Simplify handing of a specified DECL_SIZE_UNIT.
KNOWN_ALIGN is now an alignment, so simplify code.
Don't turn off DECL_BIT_FIELD if field is BLKmode, but not type.
(start_record_layout): Renamed from new_record_layout_info.
Update to new fields.
(debug_rli, normalize_rli, rli_size_unit_so_far, rli_size_so_far):
New functions.
(place_union_field): Renamed from layout_union_field.
Update to use new fields in rli.
(place_field): Renamed from layout_field.
Major rewrite to use new fields in rli; pass alignment to layout_decl.
(finalize_record_size): Rework to use new fields in rli and handle
union.
(compute_record_mode): Rework to simplify and to use new DECL fields.
(finalize_type_size): Make rounding more consistent.
(finish_union_layout): Deleted.
(layout_type, case VOID_TYPE): Don't set TYPE_SIZE_UNIT either.
(layout_type, case RECORD_TYPE): Call new function names.
(initialize_sizetypes): Set TYPE_IS_SIZETYPE.
(set_sizetype): Set TYPE_IS_SIZETYPE earlier.
(get_best_mode): UNIT is now unsigned; remove casts.
* tree.c (bit_position): Compute from new fields.
(byte_position, int_byte_position): New functions.
(print_type_hash_statistics): Cast to remove warning.
(build_range_type): Use host_integerp and tree_low_cst to try to hash.
(build_index_type): Likewise; make subtype of sizetype.
(build_index_2_type): Pass sizetype to build_range_type.
(build_common_tree_nodes): Use size_int and bitsize_int to
initialize nodes; add bitsize_{zero,one,unit}_node.
* tree.h (DECL_FIELD_CONTEXT): Use FIELD_DECL_CHECK.
(DECL_BIT_FIELD_TYPE, DECL_QUALIFIER, DECL_FCONTEXT): Likewise.
(DECL_PACKED, DECL_BIT_FIELD): Likewise.
(DECL_FIELD_BITPOS): Deleted.
(DECL_FIELD_OFFSET, DECL_FIELD_BIT_OFFSET): New fields.
(DECL_RESULT, DECL_SAVED_INSNS): Use FUNCTION_DECL_CHECK.
(DECL_FRAME_SIZE, DECL_FUNCTION_CODE, DECL_NO_STATIC_CHAIN): Likewise.
(DECL_INLINE, DECL_BUILT_IN_NONANSI, DECL_IS_MALLOC): Likewise.
(DECL_BUILT_IN_CLASS, DECL_STATIC_CONSTRUCTOR): Likewise.
(DECL_STATIC_DESTRUCTOR, DECL_NO_CHECK_MEMORY_USAGE): Likewise.
(DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT, DECL_NO_LIMIT_STACK) Likewise.
(DECL_ORIGINAL_TYPE, TYPE_DECL_SUPPRESS_DEBUG): Use TYPE_DECL_CHECK.
(DECL_ARG_TYPE_AS_WRITEN, DECL_ARG_TYPE): Use PARM_DECL_CHECK.
(DECL_INCOMING_RTL, DECL_TRANSPARENT_UNION): Likewise.
(DECL_ALIGN): Adjust to new field in union.
(DECL_OFFSET_ALIGN): New field.
(DECL_ERROR_ISSUED, DECL_TOO_LATE): Use LABEL_DECL_CHECK.
(DECL_IN_TEXT_SECTION): Use VAR_DECL_CHECK.
(union tree_decl): Add struct for both aligns.
(enum tree_index): Add TI_BITSIZE_{ZERO,ONE,UNIT}.
(bitsize_zero_node, bitsize_one_node, bitsize_unit_node): Added.
(struct record_layout_info): Rework fields to have offset
alignment and byte and bit position.
(start_record_layout, place_field): Renamed from old names.
(rli_size_so_far, rli_size_unit_so_far, normalize_rli): New decls.
(byte_position, int_byte_position): Likewise.
(get_inner_reference): Change types of position and length.
* unroll.c (unroll_loop): New variable R; use for some loops.
MAX_LOCAL_REGNUM and MAXREGNUM now unsigned.
(calculate_giv_inc): Arg REGNO now unsigned.
(copy_loop_body): REGNO and SRC_REGNO now unsigned.
* varasm.c (assemble_variable): Clean up handling of size using
host_integerp and tree_low_cst.
(decode_addr_const): Use byte, not bit, position.
(output_constructor): bitpos and offsets are HOST_WIDE_INT;
use tree_low_cst and int_bit_position.
* objc/objc-act.c (build_ivar_list_initializer): Use byte_position.
* ch/actions.c (check_missing_cases): BYTES_NEEDED is HOST_WIDE_INT.
* ch/typeck.c (expand_constant_to_buffer): Use int_byte_position.
(extract_constant_from_buffer): Likewise.
* cp/class.c (build_vbase_pointer_fields): layout_field now
place_field.
(get_vfield_offset): Use byte_position.
(set_rtti_entry): Set OFFSET to ssizetype zero.
(get_binfo_offset_as_int): Deleted.
(dfs_record_base_offsets): Use tree_low_cst.
(dfs_search_base_offsets): Likewise.
(layout_nonempty_base_or_field): Reflect changes in RLI format
and call byte_position.
(layout_empty_base): Convert offset to ssizetype.
(build_base_field): use rli_size_unit_so_far.
(dfs_propagate_binfo_offsets): Do computation in proper type.
(layout_virtual_bases): Pass ssizetype to propagate_binfo_offsets.
(layout_class_type): Reflect changes in RLI names and fields.
(finish_struct_1): Set DECL_FIELD_OFFSET.
* cp/dump.c (dequeue_and_dump): Call bit_position.
* cp/expr.c (cplus_expand_constant): Use byte_position.
* cp/rtti.c (expand_class_desc): Use bitsize_one_node.
* cp/typeck.c (build_component_addr): Use byte_position and don't
special case for zero offset.
* f/com.c (ffecom_tree_canonize_ptr_): Use bitsize_zero_node.
(ffecom_tree_canonize_ref_): Likewise.
* java/class.c (make_field_value): Use byte_position.
* java/expr.c (JAVA_ARRAY_LENGTH_OFFSET): Use byte_position.
(java_array_data_offset): Likewise.
* java/java-tree.h (MAYBE_CREATE_TYPE_TYPE_LANG_SPECIFIC): Add case to
bzero call.
From-SVN: r32742
2000-03-25 19:34:13 +01:00
|
|
|
|
if (reg_equiv_memory_loc[r])
|
1992-05-22 23:22:42 +02:00
|
|
|
|
return refers_to_regno_for_reload_p (regno, endregno,
|
* Rework fields used to describe positions of bitfields and
modify sizes to be unsigned and use HOST_WIDE_INT.
* alias.c (reg_known_value_size): Now unsigned.
* c-typeck.c (build_unary_op, case ADDR_EXPR): Use byte_position.
(really_start_incremental_init): Use bitsize_zero_node.
(push_init_level, pop_init_level, output_init_element): Likewise.
Use bitsize_unit_node and bitsize_one_node.
(output_pending_init_elements, process_init_element): Likewise.
* combine.c (combine_max_regno, reg_sign_bit_copies): Now unsigned.
(make_extraction): Position and length HOST_WIDE_INT and unsigned
HOST_WIDE_INT, respectively.
(get_pos_from_mask): Passed in value is unsigned HOST_WIDE_INT.
(num_sign_bit_copies): Returns unsigned.
BITWIDTH now unsigned; rework arithmetic.
Remove recursive call from arg to MAX.
(combine_instructions, init_reg_last_arrays): NREGS now unsigned.
(setup_incoming_promotions, can_combine_p, try_combine, simplify_set):
REGNO now unsigned.
(set_nonzero_bit_and_sign_copies): NUM now unsigned.
(find_split_point, expand_compound_operation, make_extraction): LEN
now unsigned HOST_WIDE_INT, POS now HOST_WIDE_INT.
(make_field_assignment): Likewise.
(combine_simplify_rtx): Add cast.
(expand_compound_operation): MODEWIDTH now unsigned; rework arithmetic.
(force_to_mode): WIDTH now unsigned; add cast.
(if_then_else_cond): SIZE now unsigned.
(nonzero_bits): MODE_WIDTH, RESULT_WIDTH, and WIDTH now unsigned.
(extended_count): Now returns unsigned.
(simplify_shift_const): COUNT unsigned; arg is now INPUT_COUNT.
Add SIGNED_COUNT variable; MODE_WORDS and FIRST_COUNT now unsigned.
(simplify_comparison): MODE_WIDTH now unsigned.
(update_table_tick): REGNO and ENDREGNO now unsigned; new var R.
(mark_used_regs_combine): Likewise; rework arithmetic.
(record_value_for_reg): REGNO, ENDREGNO, and I now unsigned.
(record_dead_and_set_regs, reg_dead_at_p, distribute_notes): Likewise.
(record_promoted_value): REGNO now unsigned.
(get_last_value_validate): REGNO, ENDREGNO, and J now unsigned.
(get_last_value): REGNO now unsigned.
(use_crosses_set_p): REGNO and ENDREGNO now unsigned.
(reg_dead_regno, reg_dead_endregno): Now unsigned.
(remove_death): Arg REGNO now unsigned.
(move_deaths): REGNO, DEADREGNO, DEADEND, OUREND, and I now unsigned.
(reg_bitfield_target_p): REGNO, REGNO, ENDREGNO, and ENDTREGNO
now unsigned.
* convert.c (convert_to_integer): INPREC and OUTPREC now unsigned.
* cse.c (struct qty_table_elem): FIRST_REG and LAST_REG now unsigned.
(struct cse_reg_info): REGNO now unsigned.
(cached_regno): Now unsigned.
(REGNO_QTY_VALID_P): Add cast.
(make_new_qty, make_regs_eqv, delete_reg_eqiv): Regno args unsigned.
(remove_invalid_regs): Likewise.
(remove_invalid_subreg_refs): Likewise; arg WORD also unsigned
as are variables END and I.
(get_cse_reg_info, insert): Likewise.
(mention_regs, invalidate_for_call): REGNO, ENDREGNO, and I unsigned.
(canon_hash): Likewise.
(insert_regs, lookup_for_remove): REGNO now unsigned.
(invalidate): REGNO, ENDREGNO, TREGNO, and TENDREGNO now unsigned.
New variable RN.
* dbxout.c (dbxout_parms, dbxout_reg_parms): Don't check for REGNO < 0.
* dwarf2out.c (dwarf2ou_frame_debug_expr): Remove cast.
* emit-rtl.c (subreg_realpart_p): Add cast.
(operand_subword): Arg I is now unsigned as is var PARTWORDS.
(operand_subword_force): Arg I is now unsigned.
* except.c (eh_regs): Variable I is now unsigned.
* explow.c (hard_function_value): BYTES is unsigned HOST_WIDE_INT.
* expmed.c (store_fixed_bit_field): Position is HOST_WIDE_INT;
length is unsigned HOST_WIDE_INT; likewise for internal variables.
(store_split_bit_field, extract_fixed_bit_field): Likewise.
(extract_split_bit_field, store_bit_field, extract_bit_field):
Likewise.
* expr.c (store_constructor_fields, store_constructor, store_field):
Positions are HOST_WIDE_INT and lengths are unsigned HOST_WIDE_INT.
(expand_assignment, expand_expr, expand_expr_unaligned): Likewise.
(do_jump): Likewise.
(move_by_pieces, move_by_pieces_ninsns, clear_by_pieces):
MAX_SIZE is now unsigned.
(emit_group_load): BYTEPOS is HOST_WIDE_INT; BYTELEN is unsigned.
(emit_group_store): Likewise.
(emit_move_insn): I now unsigned.
(store_constructor): Use host_integerp, tree_low_cst, and
bitsize_unit_node.
(get_inner_reference): Return bitpos and bitsize as HOST_WIDE_INT.
Rework all calculations to use trees and new fields.
* expr.h (promoted_input_arg): Regno now unsigned.
(store_bit_field, extract_bit_field): Adjust types of pos and size.
(mark_seen_cases): Arg is HOST_WIDE_INT.
* flow.c (verify_wide_reg_1): REGNO now unsigned.
* fold-const.c (decode_field_reference): Size and pos HOST_WIDE_INT;
precisions and alignments are unsigned.
(optimize_bit_field_compare, fold_truthop): Likewise.
(int_const_binop): Adjust threshold for size_int_type_wide call.
(fold_convert): Likewise.
(size_int_type_wide): Make table larger and fix thinko that only
had half of table used.
(all_ones_mask_p, fold): Precisions are unsigned.
* function.c (put_reg_info_stack): REGNO is unsigned.
(instantiate_decl): Size is HOST_WIDE_INT.
(instantiate_virtual_regs): I is unsigned.
(assign_parms): REGNO, REGNOI, and REGNOR are unsigned.
(promoted_input_arg): REGNO is unsigned.
* function.h (struct function): x_max_parm_reg is now unsigned.
* gcse.c (max_gcse_regno): Now unsigned.
(struct null_pointer_info): min_reg and max_reg now unsigned.
(lookup_set, next_set): REGNO arg now unsigned.
(compute_hash_table): REGNO and I now unsigned.
(handle_avail_expr): regnum_for_replacing now unsigned.
(cprop_insn): REGNO now unsigned.
(delete_null_pointer_checks_1): BLOCK_REG now pointer to unsigned.
* ggc-common.c (ggc_mark_tree_children, case FIELD_DECL): New case.
* global.c (set_preference): SRC_REGNO, DEST_REGNO, and I now unsigned.
* hard-reg-set.h (reg_class_size): Now unsigned.
* integrate.c (mark_stores): LAST_REG and I now unsigned; new UREGNO.
* jump.c (mark_modified_reg): I now unsigned; add cast.
(rtx_equal_for_thread_p): Add cast.
* loop.c (max_reg_before_loop): Now unsigned.
(struct_movable): REGNO now unsigned.
(try_copy_prop): REGNO arg unsigned.
(regs_match_p): XN and YN now unsigned.
(consec_sets_invariant_p, maybe_eliminate_biv): REGNO now unsigned.
(strength_reduce): Likewise; NREGS also unsigned.
(first_increment_giv, last_increment_giv unsigned): Now unsigned.
* loop.h (struct iv_class): REGNO now unsigned.
(max_reg_before_loop, first_increment_giv, last_increment_giv):
Now unsigned.
* machmode.h (mode_size, mode_unit_size): Now unsigned.
(mode_for_size, smallest_mode_for_size): Pass size as unsigned.
* optabs.c (expand_binop): I and NWORDS now unsigned.
(expand_unop): I now unsigned.
* print-tree.c (print_node): Don't print DECL_FIELD_BITPOS, but do
print DECL_FIELD_OFFSET and DECL_FIELD_BIT_OFFSET.
* real.c (significand_size): Now returns unsigned.
* real.h (significand_size): Likewise.
* regclass.c (reg_class_size): Now unsigned.
(choose_hard_reg_mode): Both operands now unsigned.
(record_reg_classes): REGNO and NR now unsigned.
(reg_scan): NREGS now unsigned.
(reg_scan_update): old_max_regno now unsigned.
(reg_scan_mark_refs): Arg MIN_REGNO and var REGNO now unsigned.
* reload.c (find_valid_class): BEST_SIZE now unsigned.
(find_dummy_reload): REGNO, NWORDS, and I now unsigned.
(hard_reg_set_here_p): Args BEG_REGNO and END_REGNO now unsigned.
Likewise for variable R.
(refers_to_regno_for_reload_p): Args REGNO and END_REGNO now unsigned,
as are variables INNER_REGNO and INNER_ENDREGNO; add new variable R.
(find_equiv_reg): Add casts.
(regno_clobbered_p): Arg REGNO now unsigned.
* reload.h (struct reload): NREGS now unsigned.
(refers_to_regno_for_reload_p): Regno args are unsigned.
(regno_clobbered_p): Likewise.
* reload1.c (reg_max_ref_width, spill_stack_slot_width): Now unsigned.
(compute_use_by_pseudos): REGNO now unsigned.
(find_reg): I and J now unsigned, new variable K, and change loop
variables accordingly; THIS_NREGS now unsigned.
(alter_reg): INHERENT_SIZE and TOTAL_SIZE now unsigned.
(spill_hard_reg): REGNO arg now unsigned; add casts.
(forget_old_reloads_1): REGNO, NR, and I now unsigned.
(mark_reload_reg_in_use): Arg REGNO and vars NREGS and I now unsigned.
(clear_reload_reg_in_use): Arg REGNO and vars NREGS, START_REGNO,
END_REGNO, CONFLICT_START, and CONFLICT_END now unsigned.
(reload_reg_free_p, reload_reg_reaches_end_p): Arg REGNO now unsigned.
(choose_reload_regs): MAX_GROUP_SIZE now unsigned.
(emit_reload_insns): REGNO now unsigned.
(reload_cse_move2add): Add cast.
(move2add_note_store): REGNO and I now unsigned; new variable ENDREGNO
and rework loop.
* resource.c (mark_referenced_resources, mark_set_resources): New
variable R; REGNO and LAST_REGNO now unsigned.
(mark_target_live_regs): J and REGNO now unsigned.
* rtl.c (mode_size, mode_unit_size): Now unsigned.
* rtl.h (union rtunion_def): New field rtuint.
(XCUINT): New macro.
(ADDRESSOF_REGNO, REGNO, SUBREG_WORD): New XCUINT.
(operand_subword, operand_subword_force): Word number is unsigned.
(choose_hard_reg_mode): Operands are unsigned.
(refers_to-regno_p, dead_or_set_regno_p): Regno arg is unsigned.
(find_regno_note, find_regno_fusage, replace_regs): Likewise.
(regno_use_in, combine_instructions, remove_death): Likewise.
(reg_scan, reg_scan_update): Likewise.
(extended_count): Return is unsigned.
* rtlanal.c (refers_to_regno_p): Args REGNO and ENDREGNO and vars I,
INNER_REGNO, and INNER_ENDREGNO now unsigned; new variable X_REGNO.
(reg_overlap_mentioned_p): REGNO and ENDREGNO now unsigned.
(reg_set_last_first_regno, reg_set_last_last_regno): Now unsigned.
(reg_reg_last_1): FIRS and LAST now unsigned.
(dead_or_set_p): REGNO, LAST_REGNO, and I now unsigned.
(dead_or_set_regno_p): Arg TEST_REGNO and vars REGNO and ENDREGNO
now unsigned.
(find_regno_note, regno_use_in): Arg REGNO now unsigned.
(find_regno_fusage): Likewise; also var REGNOTE now unsigned.
(find_reg_fusage): Variables REGNO, END_REGNO, and I now unsigned.
(replace_regs): Arg NREGS now unsigned.
* sdbout.c (sdbout_parms, sdbout_reg_parms): Don't check REGNO < 0.
* simplify-rtx.c (simplify_unary_operation): WIDTH now unsigned.
(simplify_binary_operation): Likewise.
(cselib_invalidate_regno): Arg REGNO and variables ENDREGNO, I, and
THIS_LAST now unsigned.
(cselib_record_set): Add cast.
* ssa.c (ssa_max_reg_num): Now unsigned.
(rename_block): REGNO now unsigned.
* stmt.c (expand_return): Bit positions unsigned HOST_WIDE_INT;
sizes now unsigned.
(all_cases_count): Just return -1 not -2.
COUNT, MINVAL, and LASTVAL now HOST_WIDE_INT.
Rework tests to use trees whenever possible.
Use host_integerp and tree_low_cst.
(mark_seen_cases): COUNT arg now HOST_WIDE_INT;
Likewise variable NEXT_NODE_OFFSET; XLO now unsigned.
(check_for_full_enumeration_handing): BYTES_NEEDED, I to HOST_WIDE_INT.
* stor-layout.c (mode_for_size): SIZE arg now unsigned.
(smallest_mode_for_size): Likewise.
(layout_decl): Simplify handing of a specified DECL_SIZE_UNIT.
KNOWN_ALIGN is now an alignment, so simplify code.
Don't turn off DECL_BIT_FIELD if field is BLKmode, but not type.
(start_record_layout): Renamed from new_record_layout_info.
Update to new fields.
(debug_rli, normalize_rli, rli_size_unit_so_far, rli_size_so_far):
New functions.
(place_union_field): Renamed from layout_union_field.
Update to use new fields in rli.
(place_field): Renamed from layout_field.
Major rewrite to use new fields in rli; pass alignment to layout_decl.
(finalize_record_size): Rework to use new fields in rli and handle
union.
(compute_record_mode): Rework to simplify and to use new DECL fields.
(finalize_type_size): Make rounding more consistent.
(finish_union_layout): Deleted.
(layout_type, case VOID_TYPE): Don't set TYPE_SIZE_UNIT either.
(layout_type, case RECORD_TYPE): Call new function names.
(initialize_sizetypes): Set TYPE_IS_SIZETYPE.
(set_sizetype): Set TYPE_IS_SIZETYPE earlier.
(get_best_mode): UNIT is now unsigned; remove casts.
* tree.c (bit_position): Compute from new fields.
(byte_position, int_byte_position): New functions.
(print_type_hash_statistics): Cast to remove warning.
(build_range_type): Use host_integerp and tree_low_cst to try to hash.
(build_index_type): Likewise; make subtype of sizetype.
(build_index_2_type): Pass sizetype to build_range_type.
(build_common_tree_nodes): Use size_int and bitsize_int to
initialize nodes; add bitsize_{zero,one,unit}_node.
* tree.h (DECL_FIELD_CONTEXT): Use FIELD_DECL_CHECK.
(DECL_BIT_FIELD_TYPE, DECL_QUALIFIER, DECL_FCONTEXT): Likewise.
(DECL_PACKED, DECL_BIT_FIELD): Likewise.
(DECL_FIELD_BITPOS): Deleted.
(DECL_FIELD_OFFSET, DECL_FIELD_BIT_OFFSET): New fields.
(DECL_RESULT, DECL_SAVED_INSNS): Use FUNCTION_DECL_CHECK.
(DECL_FRAME_SIZE, DECL_FUNCTION_CODE, DECL_NO_STATIC_CHAIN): Likewise.
(DECL_INLINE, DECL_BUILT_IN_NONANSI, DECL_IS_MALLOC): Likewise.
(DECL_BUILT_IN_CLASS, DECL_STATIC_CONSTRUCTOR): Likewise.
(DECL_STATIC_DESTRUCTOR, DECL_NO_CHECK_MEMORY_USAGE): Likewise.
(DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT, DECL_NO_LIMIT_STACK) Likewise.
(DECL_ORIGINAL_TYPE, TYPE_DECL_SUPPRESS_DEBUG): Use TYPE_DECL_CHECK.
(DECL_ARG_TYPE_AS_WRITEN, DECL_ARG_TYPE): Use PARM_DECL_CHECK.
(DECL_INCOMING_RTL, DECL_TRANSPARENT_UNION): Likewise.
(DECL_ALIGN): Adjust to new field in union.
(DECL_OFFSET_ALIGN): New field.
(DECL_ERROR_ISSUED, DECL_TOO_LATE): Use LABEL_DECL_CHECK.
(DECL_IN_TEXT_SECTION): Use VAR_DECL_CHECK.
(union tree_decl): Add struct for both aligns.
(enum tree_index): Add TI_BITSIZE_{ZERO,ONE,UNIT}.
(bitsize_zero_node, bitsize_one_node, bitsize_unit_node): Added.
(struct record_layout_info): Rework fields to have offset
alignment and byte and bit position.
(start_record_layout, place_field): Renamed from old names.
(rli_size_so_far, rli_size_unit_so_far, normalize_rli): New decls.
(byte_position, int_byte_position): Likewise.
(get_inner_reference): Change types of position and length.
* unroll.c (unroll_loop): New variable R; use for some loops.
MAX_LOCAL_REGNUM and MAXREGNUM now unsigned.
(calculate_giv_inc): Arg REGNO now unsigned.
(copy_loop_body): REGNO and SRC_REGNO now unsigned.
* varasm.c (assemble_variable): Clean up handling of size using
host_integerp and tree_low_cst.
(decode_addr_const): Use byte, not bit, position.
(output_constructor): bitpos and offsets are HOST_WIDE_INT;
use tree_low_cst and int_bit_position.
* objc/objc-act.c (build_ivar_list_initializer): Use byte_position.
* ch/actions.c (check_missing_cases): BYTES_NEEDED is HOST_WIDE_INT.
* ch/typeck.c (expand_constant_to_buffer): Use int_byte_position.
(extract_constant_from_buffer): Likewise.
* cp/class.c (build_vbase_pointer_fields): layout_field now
place_field.
(get_vfield_offset): Use byte_position.
(set_rtti_entry): Set OFFSET to ssizetype zero.
(get_binfo_offset_as_int): Deleted.
(dfs_record_base_offsets): Use tree_low_cst.
(dfs_search_base_offsets): Likewise.
(layout_nonempty_base_or_field): Reflect changes in RLI format
and call byte_position.
(layout_empty_base): Convert offset to ssizetype.
(build_base_field): use rli_size_unit_so_far.
(dfs_propagate_binfo_offsets): Do computation in proper type.
(layout_virtual_bases): Pass ssizetype to propagate_binfo_offsets.
(layout_class_type): Reflect changes in RLI names and fields.
(finish_struct_1): Set DECL_FIELD_OFFSET.
* cp/dump.c (dequeue_and_dump): Call bit_position.
* cp/expr.c (cplus_expand_constant): Use byte_position.
* cp/rtti.c (expand_class_desc): Use bitsize_one_node.
* cp/typeck.c (build_component_addr): Use byte_position and don't
special case for zero offset.
* f/com.c (ffecom_tree_canonize_ptr_): Use bitsize_zero_node.
(ffecom_tree_canonize_ref_): Likewise.
* java/class.c (make_field_value): Use byte_position.
* java/expr.c (JAVA_ARRAY_LENGTH_OFFSET): Use byte_position.
(java_array_data_offset): Likewise.
* java/java-tree.h (MAYBE_CREATE_TYPE_TYPE_LANG_SPECIFIC): Add case to
bzero call.
From-SVN: r32742
2000-03-25 19:34:13 +01:00
|
|
|
|
reg_equiv_memory_loc[r],
|
2002-01-10 01:56:56 +01:00
|
|
|
|
(rtx*) 0);
|
1992-05-22 23:22:42 +02:00
|
|
|
|
|
* Rework fields used to describe positions of bitfields and
modify sizes to be unsigned and use HOST_WIDE_INT.
* alias.c (reg_known_value_size): Now unsigned.
* c-typeck.c (build_unary_op, case ADDR_EXPR): Use byte_position.
(really_start_incremental_init): Use bitsize_zero_node.
(push_init_level, pop_init_level, output_init_element): Likewise.
Use bitsize_unit_node and bitsize_one_node.
(output_pending_init_elements, process_init_element): Likewise.
* combine.c (combine_max_regno, reg_sign_bit_copies): Now unsigned.
(make_extraction): Position and length HOST_WIDE_INT and unsigned
HOST_WIDE_INT, respectively.
(get_pos_from_mask): Passed in value is unsigned HOST_WIDE_INT.
(num_sign_bit_copies): Returns unsigned.
BITWIDTH now unsigned; rework arithmetic.
Remove recursive call from arg to MAX.
(combine_instructions, init_reg_last_arrays): NREGS now unsigned.
(setup_incoming_promotions, can_combine_p, try_combine, simplify_set):
REGNO now unsigned.
(set_nonzero_bit_and_sign_copies): NUM now unsigned.
(find_split_point, expand_compound_operation, make_extraction): LEN
now unsigned HOST_WIDE_INT, POS now HOST_WIDE_INT.
(make_field_assignment): Likewise.
(combine_simplify_rtx): Add cast.
(expand_compound_operation): MODEWIDTH now unsigned; rework arithmetic.
(force_to_mode): WIDTH now unsigned; add cast.
(if_then_else_cond): SIZE now unsigned.
(nonzero_bits): MODE_WIDTH, RESULT_WIDTH, and WIDTH now unsigned.
(extended_count): Now returns unsigned.
(simplify_shift_const): COUNT unsigned; arg is now INPUT_COUNT.
Add SIGNED_COUNT variable; MODE_WORDS and FIRST_COUNT now unsigned.
(simplify_comparison): MODE_WIDTH now unsigned.
(update_table_tick): REGNO and ENDREGNO now unsigned; new var R.
(mark_used_regs_combine): Likewise; rework arithmetic.
(record_value_for_reg): REGNO, ENDREGNO, and I now unsigned.
(record_dead_and_set_regs, reg_dead_at_p, distribute_notes): Likewise.
(record_promoted_value): REGNO now unsigned.
(get_last_value_validate): REGNO, ENDREGNO, and J now unsigned.
(get_last_value): REGNO now unsigned.
(use_crosses_set_p): REGNO and ENDREGNO now unsigned.
(reg_dead_regno, reg_dead_endregno): Now unsigned.
(remove_death): Arg REGNO now unsigned.
(move_deaths): REGNO, DEADREGNO, DEADEND, OUREND, and I now unsigned.
(reg_bitfield_target_p): REGNO, REGNO, ENDREGNO, and ENDTREGNO
now unsigned.
* convert.c (convert_to_integer): INPREC and OUTPREC now unsigned.
* cse.c (struct qty_table_elem): FIRST_REG and LAST_REG now unsigned.
(struct cse_reg_info): REGNO now unsigned.
(cached_regno): Now unsigned.
(REGNO_QTY_VALID_P): Add cast.
(make_new_qty, make_regs_eqv, delete_reg_eqiv): Regno args unsigned.
(remove_invalid_regs): Likewise.
(remove_invalid_subreg_refs): Likewise; arg WORD also unsigned
as are variables END and I.
(get_cse_reg_info, insert): Likewise.
(mention_regs, invalidate_for_call): REGNO, ENDREGNO, and I unsigned.
(canon_hash): Likewise.
(insert_regs, lookup_for_remove): REGNO now unsigned.
(invalidate): REGNO, ENDREGNO, TREGNO, and TENDREGNO now unsigned.
New variable RN.
* dbxout.c (dbxout_parms, dbxout_reg_parms): Don't check for REGNO < 0.
* dwarf2out.c (dwarf2ou_frame_debug_expr): Remove cast.
* emit-rtl.c (subreg_realpart_p): Add cast.
(operand_subword): Arg I is now unsigned as is var PARTWORDS.
(operand_subword_force): Arg I is now unsigned.
* except.c (eh_regs): Variable I is now unsigned.
* explow.c (hard_function_value): BYTES is unsigned HOST_WIDE_INT.
* expmed.c (store_fixed_bit_field): Position is HOST_WIDE_INT;
length is unsigned HOST_WIDE_INT; likewise for internal variables.
(store_split_bit_field, extract_fixed_bit_field): Likewise.
(extract_split_bit_field, store_bit_field, extract_bit_field):
Likewise.
* expr.c (store_constructor_fields, store_constructor, store_field):
Positions are HOST_WIDE_INT and lengths are unsigned HOST_WIDE_INT.
(expand_assignment, expand_expr, expand_expr_unaligned): Likewise.
(do_jump): Likewise.
(move_by_pieces, move_by_pieces_ninsns, clear_by_pieces):
MAX_SIZE is now unsigned.
(emit_group_load): BYTEPOS is HOST_WIDE_INT; BYTELEN is unsigned.
(emit_group_store): Likewise.
(emit_move_insn): I now unsigned.
(store_constructor): Use host_integerp, tree_low_cst, and
bitsize_unit_node.
(get_inner_reference): Return bitpos and bitsize as HOST_WIDE_INT.
Rework all calculations to use trees and new fields.
* expr.h (promoted_input_arg): Regno now unsigned.
(store_bit_field, extract_bit_field): Adjust types of pos and size.
(mark_seen_cases): Arg is HOST_WIDE_INT.
* flow.c (verify_wide_reg_1): REGNO now unsigned.
* fold-const.c (decode_field_reference): Size and pos HOST_WIDE_INT;
precisions and alignments are unsigned.
(optimize_bit_field_compare, fold_truthop): Likewise.
(int_const_binop): Adjust threshold for size_int_type_wide call.
(fold_convert): Likewise.
(size_int_type_wide): Make table larger and fix thinko that only
had half of table used.
(all_ones_mask_p, fold): Precisions are unsigned.
* function.c (put_reg_info_stack): REGNO is unsigned.
(instantiate_decl): Size is HOST_WIDE_INT.
(instantiate_virtual_regs): I is unsigned.
(assign_parms): REGNO, REGNOI, and REGNOR are unsigned.
(promoted_input_arg): REGNO is unsigned.
* function.h (struct function): x_max_parm_reg is now unsigned.
* gcse.c (max_gcse_regno): Now unsigned.
(struct null_pointer_info): min_reg and max_reg now unsigned.
(lookup_set, next_set): REGNO arg now unsigned.
(compute_hash_table): REGNO and I now unsigned.
(handle_avail_expr): regnum_for_replacing now unsigned.
(cprop_insn): REGNO now unsigned.
(delete_null_pointer_checks_1): BLOCK_REG now pointer to unsigned.
* ggc-common.c (ggc_mark_tree_children, case FIELD_DECL): New case.
* global.c (set_preference): SRC_REGNO, DEST_REGNO, and I now unsigned.
* hard-reg-set.h (reg_class_size): Now unsigned.
* integrate.c (mark_stores): LAST_REG and I now unsigned; new UREGNO.
* jump.c (mark_modified_reg): I now unsigned; add cast.
(rtx_equal_for_thread_p): Add cast.
* loop.c (max_reg_before_loop): Now unsigned.
(struct_movable): REGNO now unsigned.
(try_copy_prop): REGNO arg unsigned.
(regs_match_p): XN and YN now unsigned.
(consec_sets_invariant_p, maybe_eliminate_biv): REGNO now unsigned.
(strength_reduce): Likewise; NREGS also unsigned.
(first_increment_giv, last_increment_giv unsigned): Now unsigned.
* loop.h (struct iv_class): REGNO now unsigned.
(max_reg_before_loop, first_increment_giv, last_increment_giv):
Now unsigned.
* machmode.h (mode_size, mode_unit_size): Now unsigned.
(mode_for_size, smallest_mode_for_size): Pass size as unsigned.
* optabs.c (expand_binop): I and NWORDS now unsigned.
(expand_unop): I now unsigned.
* print-tree.c (print_node): Don't print DECL_FIELD_BITPOS, but do
print DECL_FIELD_OFFSET and DECL_FIELD_BIT_OFFSET.
* real.c (significand_size): Now returns unsigned.
* real.h (significand_size): Likewise.
* regclass.c (reg_class_size): Now unsigned.
(choose_hard_reg_mode): Both operands now unsigned.
(record_reg_classes): REGNO and NR now unsigned.
(reg_scan): NREGS now unsigned.
(reg_scan_update): old_max_regno now unsigned.
(reg_scan_mark_refs): Arg MIN_REGNO and var REGNO now unsigned.
* reload.c (find_valid_class): BEST_SIZE now unsigned.
(find_dummy_reload): REGNO, NWORDS, and I now unsigned.
(hard_reg_set_here_p): Args BEG_REGNO and END_REGNO now unsigned.
Likewise for variable R.
(refers_to_regno_for_reload_p): Args REGNO and END_REGNO now unsigned,
as are variables INNER_REGNO and INNER_ENDREGNO; add new variable R.
(find_equiv_reg): Add casts.
(regno_clobbered_p): Arg REGNO now unsigned.
* reload.h (struct reload): NREGS now unsigned.
(refers_to_regno_for_reload_p): Regno args are unsigned.
(regno_clobbered_p): Likewise.
* reload1.c (reg_max_ref_width, spill_stack_slot_width): Now unsigned.
(compute_use_by_pseudos): REGNO now unsigned.
(find_reg): I and J now unsigned, new variable K, and change loop
variables accordingly; THIS_NREGS now unsigned.
(alter_reg): INHERENT_SIZE and TOTAL_SIZE now unsigned.
(spill_hard_reg): REGNO arg now unsigned; add casts.
(forget_old_reloads_1): REGNO, NR, and I now unsigned.
(mark_reload_reg_in_use): Arg REGNO and vars NREGS and I now unsigned.
(clear_reload_reg_in_use): Arg REGNO and vars NREGS, START_REGNO,
END_REGNO, CONFLICT_START, and CONFLICT_END now unsigned.
(reload_reg_free_p, reload_reg_reaches_end_p): Arg REGNO now unsigned.
(choose_reload_regs): MAX_GROUP_SIZE now unsigned.
(emit_reload_insns): REGNO now unsigned.
(reload_cse_move2add): Add cast.
(move2add_note_store): REGNO and I now unsigned; new variable ENDREGNO
and rework loop.
* resource.c (mark_referenced_resources, mark_set_resources): New
variable R; REGNO and LAST_REGNO now unsigned.
(mark_target_live_regs): J and REGNO now unsigned.
* rtl.c (mode_size, mode_unit_size): Now unsigned.
* rtl.h (union rtunion_def): New field rtuint.
(XCUINT): New macro.
(ADDRESSOF_REGNO, REGNO, SUBREG_WORD): New XCUINT.
(operand_subword, operand_subword_force): Word number is unsigned.
(choose_hard_reg_mode): Operands are unsigned.
(refers_to-regno_p, dead_or_set_regno_p): Regno arg is unsigned.
(find_regno_note, find_regno_fusage, replace_regs): Likewise.
(regno_use_in, combine_instructions, remove_death): Likewise.
(reg_scan, reg_scan_update): Likewise.
(extended_count): Return is unsigned.
* rtlanal.c (refers_to_regno_p): Args REGNO and ENDREGNO and vars I,
INNER_REGNO, and INNER_ENDREGNO now unsigned; new variable X_REGNO.
(reg_overlap_mentioned_p): REGNO and ENDREGNO now unsigned.
(reg_set_last_first_regno, reg_set_last_last_regno): Now unsigned.
(reg_reg_last_1): FIRS and LAST now unsigned.
(dead_or_set_p): REGNO, LAST_REGNO, and I now unsigned.
(dead_or_set_regno_p): Arg TEST_REGNO and vars REGNO and ENDREGNO
now unsigned.
(find_regno_note, regno_use_in): Arg REGNO now unsigned.
(find_regno_fusage): Likewise; also var REGNOTE now unsigned.
(find_reg_fusage): Variables REGNO, END_REGNO, and I now unsigned.
(replace_regs): Arg NREGS now unsigned.
* sdbout.c (sdbout_parms, sdbout_reg_parms): Don't check REGNO < 0.
* simplify-rtx.c (simplify_unary_operation): WIDTH now unsigned.
(simplify_binary_operation): Likewise.
(cselib_invalidate_regno): Arg REGNO and variables ENDREGNO, I, and
THIS_LAST now unsigned.
(cselib_record_set): Add cast.
* ssa.c (ssa_max_reg_num): Now unsigned.
(rename_block): REGNO now unsigned.
* stmt.c (expand_return): Bit positions unsigned HOST_WIDE_INT;
sizes now unsigned.
(all_cases_count): Just return -1 not -2.
COUNT, MINVAL, and LASTVAL now HOST_WIDE_INT.
Rework tests to use trees whenever possible.
Use host_integerp and tree_low_cst.
(mark_seen_cases): COUNT arg now HOST_WIDE_INT;
Likewise variable NEXT_NODE_OFFSET; XLO now unsigned.
(check_for_full_enumeration_handing): BYTES_NEEDED, I to HOST_WIDE_INT.
* stor-layout.c (mode_for_size): SIZE arg now unsigned.
(smallest_mode_for_size): Likewise.
(layout_decl): Simplify handing of a specified DECL_SIZE_UNIT.
KNOWN_ALIGN is now an alignment, so simplify code.
Don't turn off DECL_BIT_FIELD if field is BLKmode, but not type.
(start_record_layout): Renamed from new_record_layout_info.
Update to new fields.
(debug_rli, normalize_rli, rli_size_unit_so_far, rli_size_so_far):
New functions.
(place_union_field): Renamed from layout_union_field.
Update to use new fields in rli.
(place_field): Renamed from layout_field.
Major rewrite to use new fields in rli; pass alignment to layout_decl.
(finalize_record_size): Rework to use new fields in rli and handle
union.
(compute_record_mode): Rework to simplify and to use new DECL fields.
(finalize_type_size): Make rounding more consistent.
(finish_union_layout): Deleted.
(layout_type, case VOID_TYPE): Don't set TYPE_SIZE_UNIT either.
(layout_type, case RECORD_TYPE): Call new function names.
(initialize_sizetypes): Set TYPE_IS_SIZETYPE.
(set_sizetype): Set TYPE_IS_SIZETYPE earlier.
(get_best_mode): UNIT is now unsigned; remove casts.
* tree.c (bit_position): Compute from new fields.
(byte_position, int_byte_position): New functions.
(print_type_hash_statistics): Cast to remove warning.
(build_range_type): Use host_integerp and tree_low_cst to try to hash.
(build_index_type): Likewise; make subtype of sizetype.
(build_index_2_type): Pass sizetype to build_range_type.
(build_common_tree_nodes): Use size_int and bitsize_int to
initialize nodes; add bitsize_{zero,one,unit}_node.
* tree.h (DECL_FIELD_CONTEXT): Use FIELD_DECL_CHECK.
(DECL_BIT_FIELD_TYPE, DECL_QUALIFIER, DECL_FCONTEXT): Likewise.
(DECL_PACKED, DECL_BIT_FIELD): Likewise.
(DECL_FIELD_BITPOS): Deleted.
(DECL_FIELD_OFFSET, DECL_FIELD_BIT_OFFSET): New fields.
(DECL_RESULT, DECL_SAVED_INSNS): Use FUNCTION_DECL_CHECK.
(DECL_FRAME_SIZE, DECL_FUNCTION_CODE, DECL_NO_STATIC_CHAIN): Likewise.
(DECL_INLINE, DECL_BUILT_IN_NONANSI, DECL_IS_MALLOC): Likewise.
(DECL_BUILT_IN_CLASS, DECL_STATIC_CONSTRUCTOR): Likewise.
(DECL_STATIC_DESTRUCTOR, DECL_NO_CHECK_MEMORY_USAGE): Likewise.
(DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT, DECL_NO_LIMIT_STACK) Likewise.
(DECL_ORIGINAL_TYPE, TYPE_DECL_SUPPRESS_DEBUG): Use TYPE_DECL_CHECK.
(DECL_ARG_TYPE_AS_WRITEN, DECL_ARG_TYPE): Use PARM_DECL_CHECK.
(DECL_INCOMING_RTL, DECL_TRANSPARENT_UNION): Likewise.
(DECL_ALIGN): Adjust to new field in union.
(DECL_OFFSET_ALIGN): New field.
(DECL_ERROR_ISSUED, DECL_TOO_LATE): Use LABEL_DECL_CHECK.
(DECL_IN_TEXT_SECTION): Use VAR_DECL_CHECK.
(union tree_decl): Add struct for both aligns.
(enum tree_index): Add TI_BITSIZE_{ZERO,ONE,UNIT}.
(bitsize_zero_node, bitsize_one_node, bitsize_unit_node): Added.
(struct record_layout_info): Rework fields to have offset
alignment and byte and bit position.
(start_record_layout, place_field): Renamed from old names.
(rli_size_so_far, rli_size_unit_so_far, normalize_rli): New decls.
(byte_position, int_byte_position): Likewise.
(get_inner_reference): Change types of position and length.
* unroll.c (unroll_loop): New variable R; use for some loops.
MAX_LOCAL_REGNUM and MAXREGNUM now unsigned.
(calculate_giv_inc): Arg REGNO now unsigned.
(copy_loop_body): REGNO and SRC_REGNO now unsigned.
* varasm.c (assemble_variable): Clean up handling of size using
host_integerp and tree_low_cst.
(decode_addr_const): Use byte, not bit, position.
(output_constructor): bitpos and offsets are HOST_WIDE_INT;
use tree_low_cst and int_bit_position.
* objc/objc-act.c (build_ivar_list_initializer): Use byte_position.
* ch/actions.c (check_missing_cases): BYTES_NEEDED is HOST_WIDE_INT.
* ch/typeck.c (expand_constant_to_buffer): Use int_byte_position.
(extract_constant_from_buffer): Likewise.
* cp/class.c (build_vbase_pointer_fields): layout_field now
place_field.
(get_vfield_offset): Use byte_position.
(set_rtti_entry): Set OFFSET to ssizetype zero.
(get_binfo_offset_as_int): Deleted.
(dfs_record_base_offsets): Use tree_low_cst.
(dfs_search_base_offsets): Likewise.
(layout_nonempty_base_or_field): Reflect changes in RLI format
and call byte_position.
(layout_empty_base): Convert offset to ssizetype.
(build_base_field): use rli_size_unit_so_far.
(dfs_propagate_binfo_offsets): Do computation in proper type.
(layout_virtual_bases): Pass ssizetype to propagate_binfo_offsets.
(layout_class_type): Reflect changes in RLI names and fields.
(finish_struct_1): Set DECL_FIELD_OFFSET.
* cp/dump.c (dequeue_and_dump): Call bit_position.
* cp/expr.c (cplus_expand_constant): Use byte_position.
* cp/rtti.c (expand_class_desc): Use bitsize_one_node.
* cp/typeck.c (build_component_addr): Use byte_position and don't
special case for zero offset.
* f/com.c (ffecom_tree_canonize_ptr_): Use bitsize_zero_node.
(ffecom_tree_canonize_ref_): Likewise.
* java/class.c (make_field_value): Use byte_position.
* java/expr.c (JAVA_ARRAY_LENGTH_OFFSET): Use byte_position.
(java_array_data_offset): Likewise.
* java/java-tree.h (MAYBE_CREATE_TYPE_TYPE_LANG_SPECIFIC): Add case to
bzero call.
From-SVN: r32742
2000-03-25 19:34:13 +01:00
|
|
|
|
if (reg_equiv_constant[r])
|
1992-05-22 23:22:42 +02:00
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
|
|
abort ();
|
|
|
|
|
}
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
* Rework fields used to describe positions of bitfields and
modify sizes to be unsigned and use HOST_WIDE_INT.
* alias.c (reg_known_value_size): Now unsigned.
* c-typeck.c (build_unary_op, case ADDR_EXPR): Use byte_position.
(really_start_incremental_init): Use bitsize_zero_node.
(push_init_level, pop_init_level, output_init_element): Likewise.
Use bitsize_unit_node and bitsize_one_node.
(output_pending_init_elements, process_init_element): Likewise.
* combine.c (combine_max_regno, reg_sign_bit_copies): Now unsigned.
(make_extraction): Position and length HOST_WIDE_INT and unsigned
HOST_WIDE_INT, respectively.
(get_pos_from_mask): Passed in value is unsigned HOST_WIDE_INT.
(num_sign_bit_copies): Returns unsigned.
BITWIDTH now unsigned; rework arithmetic.
Remove recursive call from arg to MAX.
(combine_instructions, init_reg_last_arrays): NREGS now unsigned.
(setup_incoming_promotions, can_combine_p, try_combine, simplify_set):
REGNO now unsigned.
(set_nonzero_bit_and_sign_copies): NUM now unsigned.
(find_split_point, expand_compound_operation, make_extraction): LEN
now unsigned HOST_WIDE_INT, POS now HOST_WIDE_INT.
(make_field_assignment): Likewise.
(combine_simplify_rtx): Add cast.
(expand_compound_operation): MODEWIDTH now unsigned; rework arithmetic.
(force_to_mode): WIDTH now unsigned; add cast.
(if_then_else_cond): SIZE now unsigned.
(nonzero_bits): MODE_WIDTH, RESULT_WIDTH, and WIDTH now unsigned.
(extended_count): Now returns unsigned.
(simplify_shift_const): COUNT unsigned; arg is now INPUT_COUNT.
Add SIGNED_COUNT variable; MODE_WORDS and FIRST_COUNT now unsigned.
(simplify_comparison): MODE_WIDTH now unsigned.
(update_table_tick): REGNO and ENDREGNO now unsigned; new var R.
(mark_used_regs_combine): Likewise; rework arithmetic.
(record_value_for_reg): REGNO, ENDREGNO, and I now unsigned.
(record_dead_and_set_regs, reg_dead_at_p, distribute_notes): Likewise.
(record_promoted_value): REGNO now unsigned.
(get_last_value_validate): REGNO, ENDREGNO, and J now unsigned.
(get_last_value): REGNO now unsigned.
(use_crosses_set_p): REGNO and ENDREGNO now unsigned.
(reg_dead_regno, reg_dead_endregno): Now unsigned.
(remove_death): Arg REGNO now unsigned.
(move_deaths): REGNO, DEADREGNO, DEADEND, OUREND, and I now unsigned.
(reg_bitfield_target_p): REGNO, REGNO, ENDREGNO, and ENDTREGNO
now unsigned.
* convert.c (convert_to_integer): INPREC and OUTPREC now unsigned.
* cse.c (struct qty_table_elem): FIRST_REG and LAST_REG now unsigned.
(struct cse_reg_info): REGNO now unsigned.
(cached_regno): Now unsigned.
(REGNO_QTY_VALID_P): Add cast.
(make_new_qty, make_regs_eqv, delete_reg_eqiv): Regno args unsigned.
(remove_invalid_regs): Likewise.
(remove_invalid_subreg_refs): Likewise; arg WORD also unsigned
as are variables END and I.
(get_cse_reg_info, insert): Likewise.
(mention_regs, invalidate_for_call): REGNO, ENDREGNO, and I unsigned.
(canon_hash): Likewise.
(insert_regs, lookup_for_remove): REGNO now unsigned.
(invalidate): REGNO, ENDREGNO, TREGNO, and TENDREGNO now unsigned.
New variable RN.
* dbxout.c (dbxout_parms, dbxout_reg_parms): Don't check for REGNO < 0.
* dwarf2out.c (dwarf2ou_frame_debug_expr): Remove cast.
* emit-rtl.c (subreg_realpart_p): Add cast.
(operand_subword): Arg I is now unsigned as is var PARTWORDS.
(operand_subword_force): Arg I is now unsigned.
* except.c (eh_regs): Variable I is now unsigned.
* explow.c (hard_function_value): BYTES is unsigned HOST_WIDE_INT.
* expmed.c (store_fixed_bit_field): Position is HOST_WIDE_INT;
length is unsigned HOST_WIDE_INT; likewise for internal variables.
(store_split_bit_field, extract_fixed_bit_field): Likewise.
(extract_split_bit_field, store_bit_field, extract_bit_field):
Likewise.
* expr.c (store_constructor_fields, store_constructor, store_field):
Positions are HOST_WIDE_INT and lengths are unsigned HOST_WIDE_INT.
(expand_assignment, expand_expr, expand_expr_unaligned): Likewise.
(do_jump): Likewise.
(move_by_pieces, move_by_pieces_ninsns, clear_by_pieces):
MAX_SIZE is now unsigned.
(emit_group_load): BYTEPOS is HOST_WIDE_INT; BYTELEN is unsigned.
(emit_group_store): Likewise.
(emit_move_insn): I now unsigned.
(store_constructor): Use host_integerp, tree_low_cst, and
bitsize_unit_node.
(get_inner_reference): Return bitpos and bitsize as HOST_WIDE_INT.
Rework all calculations to use trees and new fields.
* expr.h (promoted_input_arg): Regno now unsigned.
(store_bit_field, extract_bit_field): Adjust types of pos and size.
(mark_seen_cases): Arg is HOST_WIDE_INT.
* flow.c (verify_wide_reg_1): REGNO now unsigned.
* fold-const.c (decode_field_reference): Size and pos HOST_WIDE_INT;
precisions and alignments are unsigned.
(optimize_bit_field_compare, fold_truthop): Likewise.
(int_const_binop): Adjust threshold for size_int_type_wide call.
(fold_convert): Likewise.
(size_int_type_wide): Make table larger and fix thinko that only
had half of table used.
(all_ones_mask_p, fold): Precisions are unsigned.
* function.c (put_reg_info_stack): REGNO is unsigned.
(instantiate_decl): Size is HOST_WIDE_INT.
(instantiate_virtual_regs): I is unsigned.
(assign_parms): REGNO, REGNOI, and REGNOR are unsigned.
(promoted_input_arg): REGNO is unsigned.
* function.h (struct function): x_max_parm_reg is now unsigned.
* gcse.c (max_gcse_regno): Now unsigned.
(struct null_pointer_info): min_reg and max_reg now unsigned.
(lookup_set, next_set): REGNO arg now unsigned.
(compute_hash_table): REGNO and I now unsigned.
(handle_avail_expr): regnum_for_replacing now unsigned.
(cprop_insn): REGNO now unsigned.
(delete_null_pointer_checks_1): BLOCK_REG now pointer to unsigned.
* ggc-common.c (ggc_mark_tree_children, case FIELD_DECL): New case.
* global.c (set_preference): SRC_REGNO, DEST_REGNO, and I now unsigned.
* hard-reg-set.h (reg_class_size): Now unsigned.
* integrate.c (mark_stores): LAST_REG and I now unsigned; new UREGNO.
* jump.c (mark_modified_reg): I now unsigned; add cast.
(rtx_equal_for_thread_p): Add cast.
* loop.c (max_reg_before_loop): Now unsigned.
(struct_movable): REGNO now unsigned.
(try_copy_prop): REGNO arg unsigned.
(regs_match_p): XN and YN now unsigned.
(consec_sets_invariant_p, maybe_eliminate_biv): REGNO now unsigned.
(strength_reduce): Likewise; NREGS also unsigned.
(first_increment_giv, last_increment_giv unsigned): Now unsigned.
* loop.h (struct iv_class): REGNO now unsigned.
(max_reg_before_loop, first_increment_giv, last_increment_giv):
Now unsigned.
* machmode.h (mode_size, mode_unit_size): Now unsigned.
(mode_for_size, smallest_mode_for_size): Pass size as unsigned.
* optabs.c (expand_binop): I and NWORDS now unsigned.
(expand_unop): I now unsigned.
* print-tree.c (print_node): Don't print DECL_FIELD_BITPOS, but do
print DECL_FIELD_OFFSET and DECL_FIELD_BIT_OFFSET.
* real.c (significand_size): Now returns unsigned.
* real.h (significand_size): Likewise.
* regclass.c (reg_class_size): Now unsigned.
(choose_hard_reg_mode): Both operands now unsigned.
(record_reg_classes): REGNO and NR now unsigned.
(reg_scan): NREGS now unsigned.
(reg_scan_update): old_max_regno now unsigned.
(reg_scan_mark_refs): Arg MIN_REGNO and var REGNO now unsigned.
* reload.c (find_valid_class): BEST_SIZE now unsigned.
(find_dummy_reload): REGNO, NWORDS, and I now unsigned.
(hard_reg_set_here_p): Args BEG_REGNO and END_REGNO now unsigned.
Likewise for variable R.
(refers_to_regno_for_reload_p): Args REGNO and END_REGNO now unsigned,
as are variables INNER_REGNO and INNER_ENDREGNO; add new variable R.
(find_equiv_reg): Add casts.
(regno_clobbered_p): Arg REGNO now unsigned.
* reload.h (struct reload): NREGS now unsigned.
(refers_to_regno_for_reload_p): Regno args are unsigned.
(regno_clobbered_p): Likewise.
* reload1.c (reg_max_ref_width, spill_stack_slot_width): Now unsigned.
(compute_use_by_pseudos): REGNO now unsigned.
(find_reg): I and J now unsigned, new variable K, and change loop
variables accordingly; THIS_NREGS now unsigned.
(alter_reg): INHERENT_SIZE and TOTAL_SIZE now unsigned.
(spill_hard_reg): REGNO arg now unsigned; add casts.
(forget_old_reloads_1): REGNO, NR, and I now unsigned.
(mark_reload_reg_in_use): Arg REGNO and vars NREGS and I now unsigned.
(clear_reload_reg_in_use): Arg REGNO and vars NREGS, START_REGNO,
END_REGNO, CONFLICT_START, and CONFLICT_END now unsigned.
(reload_reg_free_p, reload_reg_reaches_end_p): Arg REGNO now unsigned.
(choose_reload_regs): MAX_GROUP_SIZE now unsigned.
(emit_reload_insns): REGNO now unsigned.
(reload_cse_move2add): Add cast.
(move2add_note_store): REGNO and I now unsigned; new variable ENDREGNO
and rework loop.
* resource.c (mark_referenced_resources, mark_set_resources): New
variable R; REGNO and LAST_REGNO now unsigned.
(mark_target_live_regs): J and REGNO now unsigned.
* rtl.c (mode_size, mode_unit_size): Now unsigned.
* rtl.h (union rtunion_def): New field rtuint.
(XCUINT): New macro.
(ADDRESSOF_REGNO, REGNO, SUBREG_WORD): New XCUINT.
(operand_subword, operand_subword_force): Word number is unsigned.
(choose_hard_reg_mode): Operands are unsigned.
(refers_to-regno_p, dead_or_set_regno_p): Regno arg is unsigned.
(find_regno_note, find_regno_fusage, replace_regs): Likewise.
(regno_use_in, combine_instructions, remove_death): Likewise.
(reg_scan, reg_scan_update): Likewise.
(extended_count): Return is unsigned.
* rtlanal.c (refers_to_regno_p): Args REGNO and ENDREGNO and vars I,
INNER_REGNO, and INNER_ENDREGNO now unsigned; new variable X_REGNO.
(reg_overlap_mentioned_p): REGNO and ENDREGNO now unsigned.
(reg_set_last_first_regno, reg_set_last_last_regno): Now unsigned.
(reg_reg_last_1): FIRS and LAST now unsigned.
(dead_or_set_p): REGNO, LAST_REGNO, and I now unsigned.
(dead_or_set_regno_p): Arg TEST_REGNO and vars REGNO and ENDREGNO
now unsigned.
(find_regno_note, regno_use_in): Arg REGNO now unsigned.
(find_regno_fusage): Likewise; also var REGNOTE now unsigned.
(find_reg_fusage): Variables REGNO, END_REGNO, and I now unsigned.
(replace_regs): Arg NREGS now unsigned.
* sdbout.c (sdbout_parms, sdbout_reg_parms): Don't check REGNO < 0.
* simplify-rtx.c (simplify_unary_operation): WIDTH now unsigned.
(simplify_binary_operation): Likewise.
(cselib_invalidate_regno): Arg REGNO and variables ENDREGNO, I, and
THIS_LAST now unsigned.
(cselib_record_set): Add cast.
* ssa.c (ssa_max_reg_num): Now unsigned.
(rename_block): REGNO now unsigned.
* stmt.c (expand_return): Bit positions unsigned HOST_WIDE_INT;
sizes now unsigned.
(all_cases_count): Just return -1 not -2.
COUNT, MINVAL, and LASTVAL now HOST_WIDE_INT.
Rework tests to use trees whenever possible.
Use host_integerp and tree_low_cst.
(mark_seen_cases): COUNT arg now HOST_WIDE_INT;
Likewise variable NEXT_NODE_OFFSET; XLO now unsigned.
(check_for_full_enumeration_handing): BYTES_NEEDED, I to HOST_WIDE_INT.
* stor-layout.c (mode_for_size): SIZE arg now unsigned.
(smallest_mode_for_size): Likewise.
(layout_decl): Simplify handing of a specified DECL_SIZE_UNIT.
KNOWN_ALIGN is now an alignment, so simplify code.
Don't turn off DECL_BIT_FIELD if field is BLKmode, but not type.
(start_record_layout): Renamed from new_record_layout_info.
Update to new fields.
(debug_rli, normalize_rli, rli_size_unit_so_far, rli_size_so_far):
New functions.
(place_union_field): Renamed from layout_union_field.
Update to use new fields in rli.
(place_field): Renamed from layout_field.
Major rewrite to use new fields in rli; pass alignment to layout_decl.
(finalize_record_size): Rework to use new fields in rli and handle
union.
(compute_record_mode): Rework to simplify and to use new DECL fields.
(finalize_type_size): Make rounding more consistent.
(finish_union_layout): Deleted.
(layout_type, case VOID_TYPE): Don't set TYPE_SIZE_UNIT either.
(layout_type, case RECORD_TYPE): Call new function names.
(initialize_sizetypes): Set TYPE_IS_SIZETYPE.
(set_sizetype): Set TYPE_IS_SIZETYPE earlier.
(get_best_mode): UNIT is now unsigned; remove casts.
* tree.c (bit_position): Compute from new fields.
(byte_position, int_byte_position): New functions.
(print_type_hash_statistics): Cast to remove warning.
(build_range_type): Use host_integerp and tree_low_cst to try to hash.
(build_index_type): Likewise; make subtype of sizetype.
(build_index_2_type): Pass sizetype to build_range_type.
(build_common_tree_nodes): Use size_int and bitsize_int to
initialize nodes; add bitsize_{zero,one,unit}_node.
* tree.h (DECL_FIELD_CONTEXT): Use FIELD_DECL_CHECK.
(DECL_BIT_FIELD_TYPE, DECL_QUALIFIER, DECL_FCONTEXT): Likewise.
(DECL_PACKED, DECL_BIT_FIELD): Likewise.
(DECL_FIELD_BITPOS): Deleted.
(DECL_FIELD_OFFSET, DECL_FIELD_BIT_OFFSET): New fields.
(DECL_RESULT, DECL_SAVED_INSNS): Use FUNCTION_DECL_CHECK.
(DECL_FRAME_SIZE, DECL_FUNCTION_CODE, DECL_NO_STATIC_CHAIN): Likewise.
(DECL_INLINE, DECL_BUILT_IN_NONANSI, DECL_IS_MALLOC): Likewise.
(DECL_BUILT_IN_CLASS, DECL_STATIC_CONSTRUCTOR): Likewise.
(DECL_STATIC_DESTRUCTOR, DECL_NO_CHECK_MEMORY_USAGE): Likewise.
(DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT, DECL_NO_LIMIT_STACK) Likewise.
(DECL_ORIGINAL_TYPE, TYPE_DECL_SUPPRESS_DEBUG): Use TYPE_DECL_CHECK.
(DECL_ARG_TYPE_AS_WRITEN, DECL_ARG_TYPE): Use PARM_DECL_CHECK.
(DECL_INCOMING_RTL, DECL_TRANSPARENT_UNION): Likewise.
(DECL_ALIGN): Adjust to new field in union.
(DECL_OFFSET_ALIGN): New field.
(DECL_ERROR_ISSUED, DECL_TOO_LATE): Use LABEL_DECL_CHECK.
(DECL_IN_TEXT_SECTION): Use VAR_DECL_CHECK.
(union tree_decl): Add struct for both aligns.
(enum tree_index): Add TI_BITSIZE_{ZERO,ONE,UNIT}.
(bitsize_zero_node, bitsize_one_node, bitsize_unit_node): Added.
(struct record_layout_info): Rework fields to have offset
alignment and byte and bit position.
(start_record_layout, place_field): Renamed from old names.
(rli_size_so_far, rli_size_unit_so_far, normalize_rli): New decls.
(byte_position, int_byte_position): Likewise.
(get_inner_reference): Change types of position and length.
* unroll.c (unroll_loop): New variable R; use for some loops.
MAX_LOCAL_REGNUM and MAXREGNUM now unsigned.
(calculate_giv_inc): Arg REGNO now unsigned.
(copy_loop_body): REGNO and SRC_REGNO now unsigned.
* varasm.c (assemble_variable): Clean up handling of size using
host_integerp and tree_low_cst.
(decode_addr_const): Use byte, not bit, position.
(output_constructor): bitpos and offsets are HOST_WIDE_INT;
use tree_low_cst and int_bit_position.
* objc/objc-act.c (build_ivar_list_initializer): Use byte_position.
* ch/actions.c (check_missing_cases): BYTES_NEEDED is HOST_WIDE_INT.
* ch/typeck.c (expand_constant_to_buffer): Use int_byte_position.
(extract_constant_from_buffer): Likewise.
* cp/class.c (build_vbase_pointer_fields): layout_field now
place_field.
(get_vfield_offset): Use byte_position.
(set_rtti_entry): Set OFFSET to ssizetype zero.
(get_binfo_offset_as_int): Deleted.
(dfs_record_base_offsets): Use tree_low_cst.
(dfs_search_base_offsets): Likewise.
(layout_nonempty_base_or_field): Reflect changes in RLI format
and call byte_position.
(layout_empty_base): Convert offset to ssizetype.
(build_base_field): use rli_size_unit_so_far.
(dfs_propagate_binfo_offsets): Do computation in proper type.
(layout_virtual_bases): Pass ssizetype to propagate_binfo_offsets.
(layout_class_type): Reflect changes in RLI names and fields.
(finish_struct_1): Set DECL_FIELD_OFFSET.
* cp/dump.c (dequeue_and_dump): Call bit_position.
* cp/expr.c (cplus_expand_constant): Use byte_position.
* cp/rtti.c (expand_class_desc): Use bitsize_one_node.
* cp/typeck.c (build_component_addr): Use byte_position and don't
special case for zero offset.
* f/com.c (ffecom_tree_canonize_ptr_): Use bitsize_zero_node.
(ffecom_tree_canonize_ref_): Likewise.
* java/class.c (make_field_value): Use byte_position.
* java/expr.c (JAVA_ARRAY_LENGTH_OFFSET): Use byte_position.
(java_array_data_offset): Likewise.
* java/java-tree.h (MAYBE_CREATE_TYPE_TYPE_LANG_SPECIFIC): Add case to
bzero call.
From-SVN: r32742
2000-03-25 19:34:13 +01:00
|
|
|
|
return (endregno > r
|
|
|
|
|
&& regno < r + (r < FIRST_PSEUDO_REGISTER
|
|
|
|
|
? HARD_REGNO_NREGS (r, GET_MODE (x))
|
1992-02-28 11:23:25 +01:00
|
|
|
|
: 1));
|
|
|
|
|
|
|
|
|
|
case SUBREG:
|
|
|
|
|
/* If this is a SUBREG of a hard reg, we can see exactly which
|
|
|
|
|
registers are being modified. Otherwise, handle normally. */
|
|
|
|
|
if (GET_CODE (SUBREG_REG (x)) == REG
|
|
|
|
|
&& REGNO (SUBREG_REG (x)) < FIRST_PSEUDO_REGISTER)
|
|
|
|
|
{
|
Use byte offsets in SUBREGs instead of words.
2001-04-03 Jakub Jelinek <jakub@redhat.com>
David S. Miller <davem@pierdol.cobaltmicro.com>
Andrew MacLeod <amacleod@redhat.com>
Use byte offsets in SUBREGs instead of words.
* alias.c (nonlocal_mentioned_p): Use subreg_regno function.
* caller-save.c (mark_set_regs): Change callers of subreg_hard_regno
to pass new argument.
(add_stored_regs): Use subreg_regno_offset function.
* calls.c (expand_call): For non-paradoxical SUBREG take endianess
into account.
(precompute_arguments): Use gen_lowpart_SUBREG.
* combine.c (try_combine): Replace explicit XEXP with SUBREG_REG.
(combine_simplify_rtx): Rework to use SUBREG_BYTE.
(simplify_set): Rework to use SUBREG_BYTE.
(expand_field_assignment): Use SUBREG_BYTE.
(make_extraction): Use SUBREG_BYTE.
(if_then_else_cond): Use SUBREG_BYTE.
(apply_distributive_law): Use SUBREG_BYTE and fixup subreg comments.
(gen_lowpart_for_combine): Compute full byte offset.
* cse.c (mention_regs): Use SUBREG_BYTE.
(remove_invalid_subreg_refs): Rework to use SUBREG_BYTE.
(canon_hash): Use SUBREG_BYTE.
(fold_rtx): Pass SUBREG_BYTE div UNITS_PER_WORD to operand_subword.
(gen_lowpart_if_possible): Formatting.
* dbxout.c (dbxout_symbol_location): Compute SUBREG hard regnos
correctly.
* dwarf2out.c (is_pseudo_reg): Fixup explicit XEXP into SUBREG_REG
(mem_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
(loc_descriptor): Fixup explicit XEXP into SUBREG_REG
* dwarfout.c (is_pseudo_reg): Fixup explicit XEXP into SUBREG_REG
(output_mem_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
(output_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
* emit-rtl.c (gen_rtx_SUBREG): New function, used to verify
certain invariants about SUBREGs the compiler creates.
(gen_lowpart_SUBREG): New function.
(subreg_hard_regno): New function to get the final register number.
(gen_lowpart_common): Use SUBREG_BYTE.
(gen_imagpart): Spacing nits.
(subreg_realpart_p): Use SUBREG_BYTE.
(gen_highpart): Use SUBREG_BYTE.
(subreg_lowpart_p): Always compute endian corrected goal offset,
even at the byte level, then compare against that.
(constant_subword): New function, pulled out all constant cases
from operand_subword and changed second argument name to offset.
(operand_subword): Detect non REG/SUBREG/CONCAT/MEM cases early
and call constant_subword to do the work. Return const0_rtx if
looking for a word outside of OP.
(operand_subword_force): Change second arg name to offset.
* expmed.c (store_bit_field): Use SUBREG_BYTE.
(store_split_bit_field): Use SUBREG_BYTE.
(extract_bit_field): Use SUBREG_BYTE.
(extract_split_bit_field): Use SUBREG_BYTE.
(expand_shift): Use SUBREG_BYTE.
* expr.c (store_expr, expand_expr): Use gen_lowpart_SUBREG.
* final.c (alter_subreg) Use subreg_hard_regno and SUBREG_BYTE.
* flow.c (set_noop_p): Use SUBREG_BYTE.
(mark_set_1): Remove ALTER_HARD_SUBREG. Use subreg_regno_offset instead.
* function.c (fixup_var_refs_1): Fixup explicit XEXP into a SUBREG_REG.
(fixup_memory_subreg): Use SUBREG_BYTE and remove byte endian
correction code.
(optimize_bit_field): Use SUBREG_BYTE.
(purge_addressof_1): Use SUBREG_BYTE.
(purge_single_hard_subreg_set): Use subreg_regno_offset function.
(assign_params): Mark arguments SUBREG_PROMOTED_VAR_P if they are
actually promoted by the caller and PROMOTE_FOR_CALLS_ONLY is true.
* gengenrtl.c (special_rtx): Add SUBREG.
* global.c (mark_reg_store): Use SUBREG_BYTE.
(set_preference): Rework to use subreg_regno_offset and SUBREG_BYTE.
* ifcvt (noce_emit_move_insn): Use SUBREG_BYTE.
* integrate.c (copy_rtx_and_substitute): Use SUBREG_BYTE and make sure
final byte offset is congruent to subreg's mode size.
(subst_constants): Use SUBREG_BYTE.
(mark_stores): Use subreg_regno_offset function.
* jump.c (rtx_renumbered_equal_p, true_regnum): Use subreg_regno_offset
function and SUBREG_BYTE.
* local-alloc.c (combine_regs): Use subreg_regno_offset function.
(reg_is_born): Use subreg_hard_regno.
* recog.c (valid_replace_rtx_1): Use SUBREG_BYTE and remove byte
endian correction code. Don't combine subregs unless resulting
offset aligns with type. Fix subreg constant extraction for DImode.
Simplify SUBREG of VOIDmode CONST_DOUBLE.
(general_operand): Remove dead mode_altering_drug code.
(indirect_operand): Use SUBREG_BYTE.
(constrain_operands): Use subreg_regno_offset function.
* reg-stack.c (get_true_reg): Use subreg_regno_offset function.
* regmove.c (regmove_optimize): Use SUBREG_BYTE.
(optimize_reg_copy_3): Use gen_lowpart_SUBREG.
* regs.h (REG_SIZE): Allow target to override.
(REGMODE_NATURAL_SIZE): New macro which target can override.
* reload.c (reload_inner_reg_of_subreg): subreg_regno should be used
on the entire subreg rtx.
(push_reload): Use SUBREG_BYTE in comments and code.
(find_dummy_reload): Use subreg_regno_offset. Only adjust offsets
for hard registers inside subregs.
(operands_match_p): Use subreg_regno_offset.
(find_reloads): Use SUBREG_BYTE and only advance offset for subregs
containing hard regs.
(find_reload_toplev): Use SUBREG_BYTE. Remove byte endian
corrections when fixing up MEM subregs.
(find_reloads_address_1): Use SUBREG_BYTE, subreg_regno, and
subreg_regno_offset where appropriate.
(find_reloads_subreg_address): Use SUBREG_BYTE. Remove
byte endian corrections when fixing up MEM subregs.
(subst_reloads): When combining two subregs, make sure final
offset is congruent to subreg's mode size.
(find_replacement): Use SUBREG_BYTE and subreg_regno_offset.
(refers_to_regno_for_reload_p): Use subreg_regno.
(reg_overlap_mentioned_for_reload_p): Use subreg_regno_offset.
* reload1.c (eliminate_regs) Use SUBREG_BYTE. Remove byte endian
correction code for memory subreg fixups.
(forget_old_reload_1): Use subreg_regno_offset.
(choose_reload_regs): Use subreg_regno.
(emit_input_reload_insns): Use SUBREG_BYTE.
(reload_combine_note_store): Use subreg_regno_offset.
(move2add_note_store): Use subreg_regno_offset.
* resource.c (update_live_status, mark_referenced_resources): Use
subreg_regno function.
(mark_set_resources): Use subreg_regno function.
* rtl.h (SUBREG_WORD): Rename to SUBREG_BYTE.
(subreg_regno_offset, subreg_regno): Define prototypes.
(subreg_hard_regno, constant_subword, gen_rtx_SUBREG): Newi functions.
(gen_lowpart_SUBREG): Add prototype.
* rtl.texi (subreg): Update to reflect new byte offset representation.
Add mentioning of the effect that BYTES_BIG_ENDIAN has on subregs now.
* rtlanal.c (refers_to_regno_p): Use subreg_regno.
(reg_overlap_mentioned_p): Use subreg_regno.
(replace_regs); Make sure final offset of combined subreg is
congruent to size of subreg's mode.
(subreg_regno_offset): New function.
(subreg_regno): New function.
* sched-vis.c (print_value): Change SUBREG_WORD to SUBREG_BYTE.
* sdbout.c (sdbout_symbol): Compute offset using alter_subreg.
* stmt.c (expand_anon_union_decl): Use gen_lowpart_SUBREG.
* tm.texi (ALTER_HARD_SUBREG): Remove, it is now dead.
(SUBREG_REGNO_OFFSET): Describe SUBREG_REGNO_OFFSET overrides.
* config/a29k/a29k.c (gpc_reg_operand): Use subreg_regno.
(a29k_get_reloaded_address): Use SUBREG_BYTE.
(print_operand): Use SUBREG_BYTE.
* config/alpha/alpha.c (print_operand_address): Use SUBREG_BYTE.
* config/arm/arm.c (arm_reload_in_hi): Use SUBREG_BYTE.
(arm_reload_out_hi): Use SUBREG_BYTE.
* config/d30v/d30v.c (d30v_split_double): Use subreg_regno_offset
instead of SUBREG_WORD.
(d30v_print_operand_memory_reference): Use subreg_regno_offset.
* config/dsp16xx/dsp16xx.md (extendqihi2, zero_extendqihi2): Fix
SUBREG creation to use byte offset.
* config/h8300/h8300.md (Unnamed HImode zero extraction and 16bit
inverted load insns): Fix explicit rtl subregs to use byte
offsets.
* config/i370/i370.md (cmpstrsi, movstrsi, mulsi3, divsi3,
udivsi3, umodsi3): Generate SUBREGs with byte offsets.
* config/i860/i860.c (single_insn_src_p): Use SUBREG_BYTE.
* config/i860/i860.md (mulsi3_big): Fixup explicit SUBREGs in rtl
to use byte offsets.
(unnamed fmlow.dd insn): Fixup SUBREGS to use byte offsets.
* config/i960/i960.md (extendhisi2): Generate SUBREGs with byte
offsets, also make sure it is congruent to SUBREG's mode size.
(extendqisi2, extendqihi2, zero_extendhisi2, zero_extendqisi2,
unnamed ldob insn): Generate SUBREGs with byte offset.
(zero_extendqihi2): SUBREG's are byte offsets.
* config/m68hc11/m68hc11.c (m68hc11_gen_lowpart): Use SUBREG_BYTE.
(m68hc11_gen_highpart): Use SUBREG_BYTE.
* config/m68k/m68k.md (zero_extendhisi2, zero_extendqihi2,
zero-extendqisi2): Generate SUBREGs with byte offset.
(umulsidi3, mulsidi3, subreghi1ashrdi_const32,
subregsi1ashrdi_const32, subreg1lshrdi_const32): Fixup explicit
subregs in rtl to use byte offsets.
* config/m88k/m88k.md (extendsidi2): fixup subregs to use byte offset.
* config/mips/mips.c (mips_move_1word): Use subreg_regno_offset.
(mips_move_2words): Use subreg_regno_offset.
(mips_secondary_reload_class): Use subreg_regno_offset.
* config/mips/mips.md (DImode plus, minus, move, and logical op
splits): Fixup explicit subregs in rtl to use byte offsets.
* config/mn10200/mn10200.c (print_operand): Use subreg_regno function.
* config/mn10300/mn10300.c (print_operand): Use subreg_regno function.
* config/ns32k/ns32k.md (udivmoddisi4): Fix explicit subregs in
rtl to use byte offsets.
* config/pa/pa.c (emit_move_sequence): Use SUBREG_BYTE.
* config/pa/pa.md (floatunssisf2, floatunssidf2, mulsi3): fix explicit
subregs to use byte offsets.
* config/pdp11/pdp11.md (zero_extendhisi2, modhi3, modhi3+1):
Fixup explicit subregs in rtl to use byte offsets.
* config/romp/romp.c (memory_offset_in_range_p): Use SUBREG_BYTE
and remove byte endian correction code.
* config/sh/sh.c (output_movedouble): Use subreg_regno.
(gen_ashift_hi): Use SUBREG_BYTE.
(regs_used): Use subreg_regno_offset.
(machine_dependent_reorg): Use subreg_regno_offset.
* config/sh/sh.h (INDEX_REGISTER_RTX_P): Use SUBREG_BYTE.
* config/sh/sh.md (DImode and DFmode move splits): Use subreg_regno.
(movdf_i4): Subregs are byte offsets now.
* config/sparc/sparc.c (ultra_find_type): Use SUBREG_BYTE.
* config/sparc/sparc.h (ALTER_HARD_SUBREG): Removed.
(REGMODE_NATURAL_SIZE): Override.
(REG_SIZE): For SUBREG check float mode on SUBREG_REG's mode.
* config/sparc/sparc.md (TFmode move splits): Generate SUBREGs
with byte offsets.
(zero_extendhisi2, zero_extendqidi2_insn, extendhisi2,
extendqihi2, sign_extendqihi2_insn, sign_extendqisi2_insn,
extendqidi2): Generate SUBREGs with byte offsets, also make sure
it is congruent to SUBREG's mode size.
(smulsi3_highpart_v8plus): Fix explicit subregs in rtl to use byte
offsets.
(cmp_siqi_trunc, cmp_siqi_trunc_set, cmp_diqi_trunc,
cmp_diqi_trunc_set, lshrdi3_v8plus+1, lshrdi3_v8plus+2,
lshrdi3_v8plus+3, lshrdi3_v8plus+4): Use proper
SUBREG_BYTE offset for non-paradoxical subregs in patterns.
* config/v850/v850.c (print_operand, output_move_double): Use
subreg_regno function.
Co-Authored-By: Andrew MacLeod <amacleod@redhat.com>
Co-Authored-By: David S. Miller <davem@pierdol.cobaltmicro.com>
From-SVN: r41058
2001-04-03 17:06:12 +02:00
|
|
|
|
unsigned int inner_regno = subreg_regno (x);
|
* Rework fields used to describe positions of bitfields and
modify sizes to be unsigned and use HOST_WIDE_INT.
* alias.c (reg_known_value_size): Now unsigned.
* c-typeck.c (build_unary_op, case ADDR_EXPR): Use byte_position.
(really_start_incremental_init): Use bitsize_zero_node.
(push_init_level, pop_init_level, output_init_element): Likewise.
Use bitsize_unit_node and bitsize_one_node.
(output_pending_init_elements, process_init_element): Likewise.
* combine.c (combine_max_regno, reg_sign_bit_copies): Now unsigned.
(make_extraction): Position and length HOST_WIDE_INT and unsigned
HOST_WIDE_INT, respectively.
(get_pos_from_mask): Passed in value is unsigned HOST_WIDE_INT.
(num_sign_bit_copies): Returns unsigned.
BITWIDTH now unsigned; rework arithmetic.
Remove recursive call from arg to MAX.
(combine_instructions, init_reg_last_arrays): NREGS now unsigned.
(setup_incoming_promotions, can_combine_p, try_combine, simplify_set):
REGNO now unsigned.
(set_nonzero_bit_and_sign_copies): NUM now unsigned.
(find_split_point, expand_compound_operation, make_extraction): LEN
now unsigned HOST_WIDE_INT, POS now HOST_WIDE_INT.
(make_field_assignment): Likewise.
(combine_simplify_rtx): Add cast.
(expand_compound_operation): MODEWIDTH now unsigned; rework arithmetic.
(force_to_mode): WIDTH now unsigned; add cast.
(if_then_else_cond): SIZE now unsigned.
(nonzero_bits): MODE_WIDTH, RESULT_WIDTH, and WIDTH now unsigned.
(extended_count): Now returns unsigned.
(simplify_shift_const): COUNT unsigned; arg is now INPUT_COUNT.
Add SIGNED_COUNT variable; MODE_WORDS and FIRST_COUNT now unsigned.
(simplify_comparison): MODE_WIDTH now unsigned.
(update_table_tick): REGNO and ENDREGNO now unsigned; new var R.
(mark_used_regs_combine): Likewise; rework arithmetic.
(record_value_for_reg): REGNO, ENDREGNO, and I now unsigned.
(record_dead_and_set_regs, reg_dead_at_p, distribute_notes): Likewise.
(record_promoted_value): REGNO now unsigned.
(get_last_value_validate): REGNO, ENDREGNO, and J now unsigned.
(get_last_value): REGNO now unsigned.
(use_crosses_set_p): REGNO and ENDREGNO now unsigned.
(reg_dead_regno, reg_dead_endregno): Now unsigned.
(remove_death): Arg REGNO now unsigned.
(move_deaths): REGNO, DEADREGNO, DEADEND, OUREND, and I now unsigned.
(reg_bitfield_target_p): REGNO, REGNO, ENDREGNO, and ENDTREGNO
now unsigned.
* convert.c (convert_to_integer): INPREC and OUTPREC now unsigned.
* cse.c (struct qty_table_elem): FIRST_REG and LAST_REG now unsigned.
(struct cse_reg_info): REGNO now unsigned.
(cached_regno): Now unsigned.
(REGNO_QTY_VALID_P): Add cast.
(make_new_qty, make_regs_eqv, delete_reg_eqiv): Regno args unsigned.
(remove_invalid_regs): Likewise.
(remove_invalid_subreg_refs): Likewise; arg WORD also unsigned
as are variables END and I.
(get_cse_reg_info, insert): Likewise.
(mention_regs, invalidate_for_call): REGNO, ENDREGNO, and I unsigned.
(canon_hash): Likewise.
(insert_regs, lookup_for_remove): REGNO now unsigned.
(invalidate): REGNO, ENDREGNO, TREGNO, and TENDREGNO now unsigned.
New variable RN.
* dbxout.c (dbxout_parms, dbxout_reg_parms): Don't check for REGNO < 0.
* dwarf2out.c (dwarf2ou_frame_debug_expr): Remove cast.
* emit-rtl.c (subreg_realpart_p): Add cast.
(operand_subword): Arg I is now unsigned as is var PARTWORDS.
(operand_subword_force): Arg I is now unsigned.
* except.c (eh_regs): Variable I is now unsigned.
* explow.c (hard_function_value): BYTES is unsigned HOST_WIDE_INT.
* expmed.c (store_fixed_bit_field): Position is HOST_WIDE_INT;
length is unsigned HOST_WIDE_INT; likewise for internal variables.
(store_split_bit_field, extract_fixed_bit_field): Likewise.
(extract_split_bit_field, store_bit_field, extract_bit_field):
Likewise.
* expr.c (store_constructor_fields, store_constructor, store_field):
Positions are HOST_WIDE_INT and lengths are unsigned HOST_WIDE_INT.
(expand_assignment, expand_expr, expand_expr_unaligned): Likewise.
(do_jump): Likewise.
(move_by_pieces, move_by_pieces_ninsns, clear_by_pieces):
MAX_SIZE is now unsigned.
(emit_group_load): BYTEPOS is HOST_WIDE_INT; BYTELEN is unsigned.
(emit_group_store): Likewise.
(emit_move_insn): I now unsigned.
(store_constructor): Use host_integerp, tree_low_cst, and
bitsize_unit_node.
(get_inner_reference): Return bitpos and bitsize as HOST_WIDE_INT.
Rework all calculations to use trees and new fields.
* expr.h (promoted_input_arg): Regno now unsigned.
(store_bit_field, extract_bit_field): Adjust types of pos and size.
(mark_seen_cases): Arg is HOST_WIDE_INT.
* flow.c (verify_wide_reg_1): REGNO now unsigned.
* fold-const.c (decode_field_reference): Size and pos HOST_WIDE_INT;
precisions and alignments are unsigned.
(optimize_bit_field_compare, fold_truthop): Likewise.
(int_const_binop): Adjust threshold for size_int_type_wide call.
(fold_convert): Likewise.
(size_int_type_wide): Make table larger and fix thinko that only
had half of table used.
(all_ones_mask_p, fold): Precisions are unsigned.
* function.c (put_reg_info_stack): REGNO is unsigned.
(instantiate_decl): Size is HOST_WIDE_INT.
(instantiate_virtual_regs): I is unsigned.
(assign_parms): REGNO, REGNOI, and REGNOR are unsigned.
(promoted_input_arg): REGNO is unsigned.
* function.h (struct function): x_max_parm_reg is now unsigned.
* gcse.c (max_gcse_regno): Now unsigned.
(struct null_pointer_info): min_reg and max_reg now unsigned.
(lookup_set, next_set): REGNO arg now unsigned.
(compute_hash_table): REGNO and I now unsigned.
(handle_avail_expr): regnum_for_replacing now unsigned.
(cprop_insn): REGNO now unsigned.
(delete_null_pointer_checks_1): BLOCK_REG now pointer to unsigned.
* ggc-common.c (ggc_mark_tree_children, case FIELD_DECL): New case.
* global.c (set_preference): SRC_REGNO, DEST_REGNO, and I now unsigned.
* hard-reg-set.h (reg_class_size): Now unsigned.
* integrate.c (mark_stores): LAST_REG and I now unsigned; new UREGNO.
* jump.c (mark_modified_reg): I now unsigned; add cast.
(rtx_equal_for_thread_p): Add cast.
* loop.c (max_reg_before_loop): Now unsigned.
(struct_movable): REGNO now unsigned.
(try_copy_prop): REGNO arg unsigned.
(regs_match_p): XN and YN now unsigned.
(consec_sets_invariant_p, maybe_eliminate_biv): REGNO now unsigned.
(strength_reduce): Likewise; NREGS also unsigned.
(first_increment_giv, last_increment_giv unsigned): Now unsigned.
* loop.h (struct iv_class): REGNO now unsigned.
(max_reg_before_loop, first_increment_giv, last_increment_giv):
Now unsigned.
* machmode.h (mode_size, mode_unit_size): Now unsigned.
(mode_for_size, smallest_mode_for_size): Pass size as unsigned.
* optabs.c (expand_binop): I and NWORDS now unsigned.
(expand_unop): I now unsigned.
* print-tree.c (print_node): Don't print DECL_FIELD_BITPOS, but do
print DECL_FIELD_OFFSET and DECL_FIELD_BIT_OFFSET.
* real.c (significand_size): Now returns unsigned.
* real.h (significand_size): Likewise.
* regclass.c (reg_class_size): Now unsigned.
(choose_hard_reg_mode): Both operands now unsigned.
(record_reg_classes): REGNO and NR now unsigned.
(reg_scan): NREGS now unsigned.
(reg_scan_update): old_max_regno now unsigned.
(reg_scan_mark_refs): Arg MIN_REGNO and var REGNO now unsigned.
* reload.c (find_valid_class): BEST_SIZE now unsigned.
(find_dummy_reload): REGNO, NWORDS, and I now unsigned.
(hard_reg_set_here_p): Args BEG_REGNO and END_REGNO now unsigned.
Likewise for variable R.
(refers_to_regno_for_reload_p): Args REGNO and END_REGNO now unsigned,
as are variables INNER_REGNO and INNER_ENDREGNO; add new variable R.
(find_equiv_reg): Add casts.
(regno_clobbered_p): Arg REGNO now unsigned.
* reload.h (struct reload): NREGS now unsigned.
(refers_to_regno_for_reload_p): Regno args are unsigned.
(regno_clobbered_p): Likewise.
* reload1.c (reg_max_ref_width, spill_stack_slot_width): Now unsigned.
(compute_use_by_pseudos): REGNO now unsigned.
(find_reg): I and J now unsigned, new variable K, and change loop
variables accordingly; THIS_NREGS now unsigned.
(alter_reg): INHERENT_SIZE and TOTAL_SIZE now unsigned.
(spill_hard_reg): REGNO arg now unsigned; add casts.
(forget_old_reloads_1): REGNO, NR, and I now unsigned.
(mark_reload_reg_in_use): Arg REGNO and vars NREGS and I now unsigned.
(clear_reload_reg_in_use): Arg REGNO and vars NREGS, START_REGNO,
END_REGNO, CONFLICT_START, and CONFLICT_END now unsigned.
(reload_reg_free_p, reload_reg_reaches_end_p): Arg REGNO now unsigned.
(choose_reload_regs): MAX_GROUP_SIZE now unsigned.
(emit_reload_insns): REGNO now unsigned.
(reload_cse_move2add): Add cast.
(move2add_note_store): REGNO and I now unsigned; new variable ENDREGNO
and rework loop.
* resource.c (mark_referenced_resources, mark_set_resources): New
variable R; REGNO and LAST_REGNO now unsigned.
(mark_target_live_regs): J and REGNO now unsigned.
* rtl.c (mode_size, mode_unit_size): Now unsigned.
* rtl.h (union rtunion_def): New field rtuint.
(XCUINT): New macro.
(ADDRESSOF_REGNO, REGNO, SUBREG_WORD): New XCUINT.
(operand_subword, operand_subword_force): Word number is unsigned.
(choose_hard_reg_mode): Operands are unsigned.
(refers_to-regno_p, dead_or_set_regno_p): Regno arg is unsigned.
(find_regno_note, find_regno_fusage, replace_regs): Likewise.
(regno_use_in, combine_instructions, remove_death): Likewise.
(reg_scan, reg_scan_update): Likewise.
(extended_count): Return is unsigned.
* rtlanal.c (refers_to_regno_p): Args REGNO and ENDREGNO and vars I,
INNER_REGNO, and INNER_ENDREGNO now unsigned; new variable X_REGNO.
(reg_overlap_mentioned_p): REGNO and ENDREGNO now unsigned.
(reg_set_last_first_regno, reg_set_last_last_regno): Now unsigned.
(reg_reg_last_1): FIRS and LAST now unsigned.
(dead_or_set_p): REGNO, LAST_REGNO, and I now unsigned.
(dead_or_set_regno_p): Arg TEST_REGNO and vars REGNO and ENDREGNO
now unsigned.
(find_regno_note, regno_use_in): Arg REGNO now unsigned.
(find_regno_fusage): Likewise; also var REGNOTE now unsigned.
(find_reg_fusage): Variables REGNO, END_REGNO, and I now unsigned.
(replace_regs): Arg NREGS now unsigned.
* sdbout.c (sdbout_parms, sdbout_reg_parms): Don't check REGNO < 0.
* simplify-rtx.c (simplify_unary_operation): WIDTH now unsigned.
(simplify_binary_operation): Likewise.
(cselib_invalidate_regno): Arg REGNO and variables ENDREGNO, I, and
THIS_LAST now unsigned.
(cselib_record_set): Add cast.
* ssa.c (ssa_max_reg_num): Now unsigned.
(rename_block): REGNO now unsigned.
* stmt.c (expand_return): Bit positions unsigned HOST_WIDE_INT;
sizes now unsigned.
(all_cases_count): Just return -1 not -2.
COUNT, MINVAL, and LASTVAL now HOST_WIDE_INT.
Rework tests to use trees whenever possible.
Use host_integerp and tree_low_cst.
(mark_seen_cases): COUNT arg now HOST_WIDE_INT;
Likewise variable NEXT_NODE_OFFSET; XLO now unsigned.
(check_for_full_enumeration_handing): BYTES_NEEDED, I to HOST_WIDE_INT.
* stor-layout.c (mode_for_size): SIZE arg now unsigned.
(smallest_mode_for_size): Likewise.
(layout_decl): Simplify handing of a specified DECL_SIZE_UNIT.
KNOWN_ALIGN is now an alignment, so simplify code.
Don't turn off DECL_BIT_FIELD if field is BLKmode, but not type.
(start_record_layout): Renamed from new_record_layout_info.
Update to new fields.
(debug_rli, normalize_rli, rli_size_unit_so_far, rli_size_so_far):
New functions.
(place_union_field): Renamed from layout_union_field.
Update to use new fields in rli.
(place_field): Renamed from layout_field.
Major rewrite to use new fields in rli; pass alignment to layout_decl.
(finalize_record_size): Rework to use new fields in rli and handle
union.
(compute_record_mode): Rework to simplify and to use new DECL fields.
(finalize_type_size): Make rounding more consistent.
(finish_union_layout): Deleted.
(layout_type, case VOID_TYPE): Don't set TYPE_SIZE_UNIT either.
(layout_type, case RECORD_TYPE): Call new function names.
(initialize_sizetypes): Set TYPE_IS_SIZETYPE.
(set_sizetype): Set TYPE_IS_SIZETYPE earlier.
(get_best_mode): UNIT is now unsigned; remove casts.
* tree.c (bit_position): Compute from new fields.
(byte_position, int_byte_position): New functions.
(print_type_hash_statistics): Cast to remove warning.
(build_range_type): Use host_integerp and tree_low_cst to try to hash.
(build_index_type): Likewise; make subtype of sizetype.
(build_index_2_type): Pass sizetype to build_range_type.
(build_common_tree_nodes): Use size_int and bitsize_int to
initialize nodes; add bitsize_{zero,one,unit}_node.
* tree.h (DECL_FIELD_CONTEXT): Use FIELD_DECL_CHECK.
(DECL_BIT_FIELD_TYPE, DECL_QUALIFIER, DECL_FCONTEXT): Likewise.
(DECL_PACKED, DECL_BIT_FIELD): Likewise.
(DECL_FIELD_BITPOS): Deleted.
(DECL_FIELD_OFFSET, DECL_FIELD_BIT_OFFSET): New fields.
(DECL_RESULT, DECL_SAVED_INSNS): Use FUNCTION_DECL_CHECK.
(DECL_FRAME_SIZE, DECL_FUNCTION_CODE, DECL_NO_STATIC_CHAIN): Likewise.
(DECL_INLINE, DECL_BUILT_IN_NONANSI, DECL_IS_MALLOC): Likewise.
(DECL_BUILT_IN_CLASS, DECL_STATIC_CONSTRUCTOR): Likewise.
(DECL_STATIC_DESTRUCTOR, DECL_NO_CHECK_MEMORY_USAGE): Likewise.
(DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT, DECL_NO_LIMIT_STACK) Likewise.
(DECL_ORIGINAL_TYPE, TYPE_DECL_SUPPRESS_DEBUG): Use TYPE_DECL_CHECK.
(DECL_ARG_TYPE_AS_WRITEN, DECL_ARG_TYPE): Use PARM_DECL_CHECK.
(DECL_INCOMING_RTL, DECL_TRANSPARENT_UNION): Likewise.
(DECL_ALIGN): Adjust to new field in union.
(DECL_OFFSET_ALIGN): New field.
(DECL_ERROR_ISSUED, DECL_TOO_LATE): Use LABEL_DECL_CHECK.
(DECL_IN_TEXT_SECTION): Use VAR_DECL_CHECK.
(union tree_decl): Add struct for both aligns.
(enum tree_index): Add TI_BITSIZE_{ZERO,ONE,UNIT}.
(bitsize_zero_node, bitsize_one_node, bitsize_unit_node): Added.
(struct record_layout_info): Rework fields to have offset
alignment and byte and bit position.
(start_record_layout, place_field): Renamed from old names.
(rli_size_so_far, rli_size_unit_so_far, normalize_rli): New decls.
(byte_position, int_byte_position): Likewise.
(get_inner_reference): Change types of position and length.
* unroll.c (unroll_loop): New variable R; use for some loops.
MAX_LOCAL_REGNUM and MAXREGNUM now unsigned.
(calculate_giv_inc): Arg REGNO now unsigned.
(copy_loop_body): REGNO and SRC_REGNO now unsigned.
* varasm.c (assemble_variable): Clean up handling of size using
host_integerp and tree_low_cst.
(decode_addr_const): Use byte, not bit, position.
(output_constructor): bitpos and offsets are HOST_WIDE_INT;
use tree_low_cst and int_bit_position.
* objc/objc-act.c (build_ivar_list_initializer): Use byte_position.
* ch/actions.c (check_missing_cases): BYTES_NEEDED is HOST_WIDE_INT.
* ch/typeck.c (expand_constant_to_buffer): Use int_byte_position.
(extract_constant_from_buffer): Likewise.
* cp/class.c (build_vbase_pointer_fields): layout_field now
place_field.
(get_vfield_offset): Use byte_position.
(set_rtti_entry): Set OFFSET to ssizetype zero.
(get_binfo_offset_as_int): Deleted.
(dfs_record_base_offsets): Use tree_low_cst.
(dfs_search_base_offsets): Likewise.
(layout_nonempty_base_or_field): Reflect changes in RLI format
and call byte_position.
(layout_empty_base): Convert offset to ssizetype.
(build_base_field): use rli_size_unit_so_far.
(dfs_propagate_binfo_offsets): Do computation in proper type.
(layout_virtual_bases): Pass ssizetype to propagate_binfo_offsets.
(layout_class_type): Reflect changes in RLI names and fields.
(finish_struct_1): Set DECL_FIELD_OFFSET.
* cp/dump.c (dequeue_and_dump): Call bit_position.
* cp/expr.c (cplus_expand_constant): Use byte_position.
* cp/rtti.c (expand_class_desc): Use bitsize_one_node.
* cp/typeck.c (build_component_addr): Use byte_position and don't
special case for zero offset.
* f/com.c (ffecom_tree_canonize_ptr_): Use bitsize_zero_node.
(ffecom_tree_canonize_ref_): Likewise.
* java/class.c (make_field_value): Use byte_position.
* java/expr.c (JAVA_ARRAY_LENGTH_OFFSET): Use byte_position.
(java_array_data_offset): Likewise.
* java/java-tree.h (MAYBE_CREATE_TYPE_TYPE_LANG_SPECIFIC): Add case to
bzero call.
From-SVN: r32742
2000-03-25 19:34:13 +01:00
|
|
|
|
unsigned int inner_endregno
|
1992-02-28 11:23:25 +01:00
|
|
|
|
= inner_regno + (inner_regno < FIRST_PSEUDO_REGISTER
|
|
|
|
|
? HARD_REGNO_NREGS (regno, GET_MODE (x)) : 1);
|
|
|
|
|
|
|
|
|
|
return endregno > inner_regno && regno < inner_endregno;
|
|
|
|
|
}
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case CLOBBER:
|
|
|
|
|
case SET:
|
|
|
|
|
if (&SET_DEST (x) != loc
|
|
|
|
|
/* Note setting a SUBREG counts as referring to the REG it is in for
|
|
|
|
|
a pseudo but not for hard registers since we can
|
|
|
|
|
treat each word individually. */
|
|
|
|
|
&& ((GET_CODE (SET_DEST (x)) == SUBREG
|
|
|
|
|
&& loc != &SUBREG_REG (SET_DEST (x))
|
|
|
|
|
&& GET_CODE (SUBREG_REG (SET_DEST (x))) == REG
|
|
|
|
|
&& REGNO (SUBREG_REG (SET_DEST (x))) >= FIRST_PSEUDO_REGISTER
|
|
|
|
|
&& refers_to_regno_for_reload_p (regno, endregno,
|
|
|
|
|
SUBREG_REG (SET_DEST (x)),
|
|
|
|
|
loc))
|
1995-08-28 12:54:22 +02:00
|
|
|
|
/* If the output is an earlyclobber operand, this is
|
1993-09-18 13:57:54 +02:00
|
|
|
|
a conflict. */
|
|
|
|
|
|| ((GET_CODE (SET_DEST (x)) != REG
|
|
|
|
|
|| earlyclobber_operand_p (SET_DEST (x)))
|
1992-02-28 11:23:25 +01:00
|
|
|
|
&& refers_to_regno_for_reload_p (regno, endregno,
|
|
|
|
|
SET_DEST (x), loc))))
|
|
|
|
|
return 1;
|
|
|
|
|
|
|
|
|
|
if (code == CLOBBER || loc == &SET_SRC (x))
|
|
|
|
|
return 0;
|
|
|
|
|
x = SET_SRC (x);
|
|
|
|
|
goto repeat;
|
1999-09-01 16:30:35 +02:00
|
|
|
|
|
1997-11-02 22:19:36 +01:00
|
|
|
|
default:
|
|
|
|
|
break;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* X does not match, so try its subexpressions. */
|
|
|
|
|
|
|
|
|
|
fmt = GET_RTX_FORMAT (code);
|
|
|
|
|
for (i = GET_RTX_LENGTH (code) - 1; i >= 0; i--)
|
|
|
|
|
{
|
|
|
|
|
if (fmt[i] == 'e' && loc != &XEXP (x, i))
|
|
|
|
|
{
|
|
|
|
|
if (i == 0)
|
|
|
|
|
{
|
|
|
|
|
x = XEXP (x, 0);
|
|
|
|
|
goto repeat;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
if (refers_to_regno_for_reload_p (regno, endregno,
|
|
|
|
|
XEXP (x, i), loc))
|
|
|
|
|
return 1;
|
|
|
|
|
}
|
|
|
|
|
else if (fmt[i] == 'E')
|
|
|
|
|
{
|
2001-10-11 05:16:15 +02:00
|
|
|
|
int j;
|
2000-08-29 23:14:57 +02:00
|
|
|
|
for (j = XVECLEN (x, i) - 1; j >= 0; j--)
|
1992-02-28 11:23:25 +01:00
|
|
|
|
if (loc != &XVECEXP (x, i, j)
|
|
|
|
|
&& refers_to_regno_for_reload_p (regno, endregno,
|
|
|
|
|
XVECEXP (x, i, j), loc))
|
|
|
|
|
return 1;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
1992-05-12 04:51:59 +02:00
|
|
|
|
|
|
|
|
|
/* Nonzero if modifying X will affect IN. If X is a register or a SUBREG,
|
|
|
|
|
we check if any register number in X conflicts with the relevant register
|
|
|
|
|
numbers. If X is a constant, return 0. If X is a MEM, return 1 iff IN
|
|
|
|
|
contains a MEM (we don't bother checking for memory addresses that can't
|
1999-09-01 16:30:35 +02:00
|
|
|
|
conflict because we expect this to be a rare case.
|
1992-05-12 04:51:59 +02:00
|
|
|
|
|
2001-07-23 15:21:39 +02:00
|
|
|
|
This function is similar to reg_overlap_mentioned_p in rtlanal.c except
|
1992-05-12 04:51:59 +02:00
|
|
|
|
that we look at equivalences for pseudos that didn't get hard registers. */
|
|
|
|
|
|
|
|
|
|
int
|
|
|
|
|
reg_overlap_mentioned_for_reload_p (x, in)
|
|
|
|
|
rtx x, in;
|
|
|
|
|
{
|
|
|
|
|
int regno, endregno;
|
|
|
|
|
|
1998-07-08 03:58:58 +02:00
|
|
|
|
/* Overly conservative. */
|
2002-01-23 02:56:22 +01:00
|
|
|
|
if (GET_CODE (x) == STRICT_LOW_PART
|
|
|
|
|
|| GET_RTX_CLASS (GET_CODE (x)) == 'a')
|
1998-07-08 03:58:58 +02:00
|
|
|
|
x = XEXP (x, 0);
|
|
|
|
|
|
|
|
|
|
/* If either argument is a constant, then modifying X can not affect IN. */
|
|
|
|
|
if (CONSTANT_P (x) || CONSTANT_P (in))
|
|
|
|
|
return 0;
|
|
|
|
|
else if (GET_CODE (x) == SUBREG)
|
1992-05-12 04:51:59 +02:00
|
|
|
|
{
|
|
|
|
|
regno = REGNO (SUBREG_REG (x));
|
|
|
|
|
if (regno < FIRST_PSEUDO_REGISTER)
|
Use byte offsets in SUBREGs instead of words.
2001-04-03 Jakub Jelinek <jakub@redhat.com>
David S. Miller <davem@pierdol.cobaltmicro.com>
Andrew MacLeod <amacleod@redhat.com>
Use byte offsets in SUBREGs instead of words.
* alias.c (nonlocal_mentioned_p): Use subreg_regno function.
* caller-save.c (mark_set_regs): Change callers of subreg_hard_regno
to pass new argument.
(add_stored_regs): Use subreg_regno_offset function.
* calls.c (expand_call): For non-paradoxical SUBREG take endianess
into account.
(precompute_arguments): Use gen_lowpart_SUBREG.
* combine.c (try_combine): Replace explicit XEXP with SUBREG_REG.
(combine_simplify_rtx): Rework to use SUBREG_BYTE.
(simplify_set): Rework to use SUBREG_BYTE.
(expand_field_assignment): Use SUBREG_BYTE.
(make_extraction): Use SUBREG_BYTE.
(if_then_else_cond): Use SUBREG_BYTE.
(apply_distributive_law): Use SUBREG_BYTE and fixup subreg comments.
(gen_lowpart_for_combine): Compute full byte offset.
* cse.c (mention_regs): Use SUBREG_BYTE.
(remove_invalid_subreg_refs): Rework to use SUBREG_BYTE.
(canon_hash): Use SUBREG_BYTE.
(fold_rtx): Pass SUBREG_BYTE div UNITS_PER_WORD to operand_subword.
(gen_lowpart_if_possible): Formatting.
* dbxout.c (dbxout_symbol_location): Compute SUBREG hard regnos
correctly.
* dwarf2out.c (is_pseudo_reg): Fixup explicit XEXP into SUBREG_REG
(mem_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
(loc_descriptor): Fixup explicit XEXP into SUBREG_REG
* dwarfout.c (is_pseudo_reg): Fixup explicit XEXP into SUBREG_REG
(output_mem_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
(output_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
* emit-rtl.c (gen_rtx_SUBREG): New function, used to verify
certain invariants about SUBREGs the compiler creates.
(gen_lowpart_SUBREG): New function.
(subreg_hard_regno): New function to get the final register number.
(gen_lowpart_common): Use SUBREG_BYTE.
(gen_imagpart): Spacing nits.
(subreg_realpart_p): Use SUBREG_BYTE.
(gen_highpart): Use SUBREG_BYTE.
(subreg_lowpart_p): Always compute endian corrected goal offset,
even at the byte level, then compare against that.
(constant_subword): New function, pulled out all constant cases
from operand_subword and changed second argument name to offset.
(operand_subword): Detect non REG/SUBREG/CONCAT/MEM cases early
and call constant_subword to do the work. Return const0_rtx if
looking for a word outside of OP.
(operand_subword_force): Change second arg name to offset.
* expmed.c (store_bit_field): Use SUBREG_BYTE.
(store_split_bit_field): Use SUBREG_BYTE.
(extract_bit_field): Use SUBREG_BYTE.
(extract_split_bit_field): Use SUBREG_BYTE.
(expand_shift): Use SUBREG_BYTE.
* expr.c (store_expr, expand_expr): Use gen_lowpart_SUBREG.
* final.c (alter_subreg) Use subreg_hard_regno and SUBREG_BYTE.
* flow.c (set_noop_p): Use SUBREG_BYTE.
(mark_set_1): Remove ALTER_HARD_SUBREG. Use subreg_regno_offset instead.
* function.c (fixup_var_refs_1): Fixup explicit XEXP into a SUBREG_REG.
(fixup_memory_subreg): Use SUBREG_BYTE and remove byte endian
correction code.
(optimize_bit_field): Use SUBREG_BYTE.
(purge_addressof_1): Use SUBREG_BYTE.
(purge_single_hard_subreg_set): Use subreg_regno_offset function.
(assign_params): Mark arguments SUBREG_PROMOTED_VAR_P if they are
actually promoted by the caller and PROMOTE_FOR_CALLS_ONLY is true.
* gengenrtl.c (special_rtx): Add SUBREG.
* global.c (mark_reg_store): Use SUBREG_BYTE.
(set_preference): Rework to use subreg_regno_offset and SUBREG_BYTE.
* ifcvt (noce_emit_move_insn): Use SUBREG_BYTE.
* integrate.c (copy_rtx_and_substitute): Use SUBREG_BYTE and make sure
final byte offset is congruent to subreg's mode size.
(subst_constants): Use SUBREG_BYTE.
(mark_stores): Use subreg_regno_offset function.
* jump.c (rtx_renumbered_equal_p, true_regnum): Use subreg_regno_offset
function and SUBREG_BYTE.
* local-alloc.c (combine_regs): Use subreg_regno_offset function.
(reg_is_born): Use subreg_hard_regno.
* recog.c (valid_replace_rtx_1): Use SUBREG_BYTE and remove byte
endian correction code. Don't combine subregs unless resulting
offset aligns with type. Fix subreg constant extraction for DImode.
Simplify SUBREG of VOIDmode CONST_DOUBLE.
(general_operand): Remove dead mode_altering_drug code.
(indirect_operand): Use SUBREG_BYTE.
(constrain_operands): Use subreg_regno_offset function.
* reg-stack.c (get_true_reg): Use subreg_regno_offset function.
* regmove.c (regmove_optimize): Use SUBREG_BYTE.
(optimize_reg_copy_3): Use gen_lowpart_SUBREG.
* regs.h (REG_SIZE): Allow target to override.
(REGMODE_NATURAL_SIZE): New macro which target can override.
* reload.c (reload_inner_reg_of_subreg): subreg_regno should be used
on the entire subreg rtx.
(push_reload): Use SUBREG_BYTE in comments and code.
(find_dummy_reload): Use subreg_regno_offset. Only adjust offsets
for hard registers inside subregs.
(operands_match_p): Use subreg_regno_offset.
(find_reloads): Use SUBREG_BYTE and only advance offset for subregs
containing hard regs.
(find_reload_toplev): Use SUBREG_BYTE. Remove byte endian
corrections when fixing up MEM subregs.
(find_reloads_address_1): Use SUBREG_BYTE, subreg_regno, and
subreg_regno_offset where appropriate.
(find_reloads_subreg_address): Use SUBREG_BYTE. Remove
byte endian corrections when fixing up MEM subregs.
(subst_reloads): When combining two subregs, make sure final
offset is congruent to subreg's mode size.
(find_replacement): Use SUBREG_BYTE and subreg_regno_offset.
(refers_to_regno_for_reload_p): Use subreg_regno.
(reg_overlap_mentioned_for_reload_p): Use subreg_regno_offset.
* reload1.c (eliminate_regs) Use SUBREG_BYTE. Remove byte endian
correction code for memory subreg fixups.
(forget_old_reload_1): Use subreg_regno_offset.
(choose_reload_regs): Use subreg_regno.
(emit_input_reload_insns): Use SUBREG_BYTE.
(reload_combine_note_store): Use subreg_regno_offset.
(move2add_note_store): Use subreg_regno_offset.
* resource.c (update_live_status, mark_referenced_resources): Use
subreg_regno function.
(mark_set_resources): Use subreg_regno function.
* rtl.h (SUBREG_WORD): Rename to SUBREG_BYTE.
(subreg_regno_offset, subreg_regno): Define prototypes.
(subreg_hard_regno, constant_subword, gen_rtx_SUBREG): Newi functions.
(gen_lowpart_SUBREG): Add prototype.
* rtl.texi (subreg): Update to reflect new byte offset representation.
Add mentioning of the effect that BYTES_BIG_ENDIAN has on subregs now.
* rtlanal.c (refers_to_regno_p): Use subreg_regno.
(reg_overlap_mentioned_p): Use subreg_regno.
(replace_regs); Make sure final offset of combined subreg is
congruent to size of subreg's mode.
(subreg_regno_offset): New function.
(subreg_regno): New function.
* sched-vis.c (print_value): Change SUBREG_WORD to SUBREG_BYTE.
* sdbout.c (sdbout_symbol): Compute offset using alter_subreg.
* stmt.c (expand_anon_union_decl): Use gen_lowpart_SUBREG.
* tm.texi (ALTER_HARD_SUBREG): Remove, it is now dead.
(SUBREG_REGNO_OFFSET): Describe SUBREG_REGNO_OFFSET overrides.
* config/a29k/a29k.c (gpc_reg_operand): Use subreg_regno.
(a29k_get_reloaded_address): Use SUBREG_BYTE.
(print_operand): Use SUBREG_BYTE.
* config/alpha/alpha.c (print_operand_address): Use SUBREG_BYTE.
* config/arm/arm.c (arm_reload_in_hi): Use SUBREG_BYTE.
(arm_reload_out_hi): Use SUBREG_BYTE.
* config/d30v/d30v.c (d30v_split_double): Use subreg_regno_offset
instead of SUBREG_WORD.
(d30v_print_operand_memory_reference): Use subreg_regno_offset.
* config/dsp16xx/dsp16xx.md (extendqihi2, zero_extendqihi2): Fix
SUBREG creation to use byte offset.
* config/h8300/h8300.md (Unnamed HImode zero extraction and 16bit
inverted load insns): Fix explicit rtl subregs to use byte
offsets.
* config/i370/i370.md (cmpstrsi, movstrsi, mulsi3, divsi3,
udivsi3, umodsi3): Generate SUBREGs with byte offsets.
* config/i860/i860.c (single_insn_src_p): Use SUBREG_BYTE.
* config/i860/i860.md (mulsi3_big): Fixup explicit SUBREGs in rtl
to use byte offsets.
(unnamed fmlow.dd insn): Fixup SUBREGS to use byte offsets.
* config/i960/i960.md (extendhisi2): Generate SUBREGs with byte
offsets, also make sure it is congruent to SUBREG's mode size.
(extendqisi2, extendqihi2, zero_extendhisi2, zero_extendqisi2,
unnamed ldob insn): Generate SUBREGs with byte offset.
(zero_extendqihi2): SUBREG's are byte offsets.
* config/m68hc11/m68hc11.c (m68hc11_gen_lowpart): Use SUBREG_BYTE.
(m68hc11_gen_highpart): Use SUBREG_BYTE.
* config/m68k/m68k.md (zero_extendhisi2, zero_extendqihi2,
zero-extendqisi2): Generate SUBREGs with byte offset.
(umulsidi3, mulsidi3, subreghi1ashrdi_const32,
subregsi1ashrdi_const32, subreg1lshrdi_const32): Fixup explicit
subregs in rtl to use byte offsets.
* config/m88k/m88k.md (extendsidi2): fixup subregs to use byte offset.
* config/mips/mips.c (mips_move_1word): Use subreg_regno_offset.
(mips_move_2words): Use subreg_regno_offset.
(mips_secondary_reload_class): Use subreg_regno_offset.
* config/mips/mips.md (DImode plus, minus, move, and logical op
splits): Fixup explicit subregs in rtl to use byte offsets.
* config/mn10200/mn10200.c (print_operand): Use subreg_regno function.
* config/mn10300/mn10300.c (print_operand): Use subreg_regno function.
* config/ns32k/ns32k.md (udivmoddisi4): Fix explicit subregs in
rtl to use byte offsets.
* config/pa/pa.c (emit_move_sequence): Use SUBREG_BYTE.
* config/pa/pa.md (floatunssisf2, floatunssidf2, mulsi3): fix explicit
subregs to use byte offsets.
* config/pdp11/pdp11.md (zero_extendhisi2, modhi3, modhi3+1):
Fixup explicit subregs in rtl to use byte offsets.
* config/romp/romp.c (memory_offset_in_range_p): Use SUBREG_BYTE
and remove byte endian correction code.
* config/sh/sh.c (output_movedouble): Use subreg_regno.
(gen_ashift_hi): Use SUBREG_BYTE.
(regs_used): Use subreg_regno_offset.
(machine_dependent_reorg): Use subreg_regno_offset.
* config/sh/sh.h (INDEX_REGISTER_RTX_P): Use SUBREG_BYTE.
* config/sh/sh.md (DImode and DFmode move splits): Use subreg_regno.
(movdf_i4): Subregs are byte offsets now.
* config/sparc/sparc.c (ultra_find_type): Use SUBREG_BYTE.
* config/sparc/sparc.h (ALTER_HARD_SUBREG): Removed.
(REGMODE_NATURAL_SIZE): Override.
(REG_SIZE): For SUBREG check float mode on SUBREG_REG's mode.
* config/sparc/sparc.md (TFmode move splits): Generate SUBREGs
with byte offsets.
(zero_extendhisi2, zero_extendqidi2_insn, extendhisi2,
extendqihi2, sign_extendqihi2_insn, sign_extendqisi2_insn,
extendqidi2): Generate SUBREGs with byte offsets, also make sure
it is congruent to SUBREG's mode size.
(smulsi3_highpart_v8plus): Fix explicit subregs in rtl to use byte
offsets.
(cmp_siqi_trunc, cmp_siqi_trunc_set, cmp_diqi_trunc,
cmp_diqi_trunc_set, lshrdi3_v8plus+1, lshrdi3_v8plus+2,
lshrdi3_v8plus+3, lshrdi3_v8plus+4): Use proper
SUBREG_BYTE offset for non-paradoxical subregs in patterns.
* config/v850/v850.c (print_operand, output_move_double): Use
subreg_regno function.
Co-Authored-By: Andrew MacLeod <amacleod@redhat.com>
Co-Authored-By: David S. Miller <davem@pierdol.cobaltmicro.com>
From-SVN: r41058
2001-04-03 17:06:12 +02:00
|
|
|
|
regno += subreg_regno_offset (REGNO (SUBREG_REG (x)),
|
|
|
|
|
GET_MODE (SUBREG_REG (x)),
|
|
|
|
|
SUBREG_BYTE (x),
|
|
|
|
|
GET_MODE (x));
|
1992-05-12 04:51:59 +02:00
|
|
|
|
}
|
|
|
|
|
else if (GET_CODE (x) == REG)
|
|
|
|
|
{
|
|
|
|
|
regno = REGNO (x);
|
1992-05-22 23:22:42 +02:00
|
|
|
|
|
|
|
|
|
/* If this is a pseudo, it must not have been assigned a hard register.
|
|
|
|
|
Therefore, it must either be in memory or be a constant. */
|
|
|
|
|
|
|
|
|
|
if (regno >= FIRST_PSEUDO_REGISTER)
|
|
|
|
|
{
|
|
|
|
|
if (reg_equiv_memory_loc[regno])
|
|
|
|
|
return refers_to_mem_for_reload_p (in);
|
|
|
|
|
else if (reg_equiv_constant[regno])
|
|
|
|
|
return 0;
|
|
|
|
|
abort ();
|
|
|
|
|
}
|
1992-05-12 04:51:59 +02:00
|
|
|
|
}
|
|
|
|
|
else if (GET_CODE (x) == MEM)
|
1992-05-22 23:22:42 +02:00
|
|
|
|
return refers_to_mem_for_reload_p (in);
|
1992-05-12 04:51:59 +02:00
|
|
|
|
else if (GET_CODE (x) == SCRATCH || GET_CODE (x) == PC
|
|
|
|
|
|| GET_CODE (x) == CC0)
|
|
|
|
|
return reg_mentioned_p (x, in);
|
2002-01-23 02:56:22 +01:00
|
|
|
|
else if (GET_CODE (x) == PLUS)
|
|
|
|
|
return (reg_overlap_mentioned_for_reload_p (XEXP (x, 0), in)
|
|
|
|
|
|| reg_overlap_mentioned_for_reload_p (XEXP (x, 1), in));
|
1992-05-12 04:51:59 +02:00
|
|
|
|
else
|
|
|
|
|
abort ();
|
|
|
|
|
|
|
|
|
|
endregno = regno + (regno < FIRST_PSEUDO_REGISTER
|
|
|
|
|
? HARD_REGNO_NREGS (regno, GET_MODE (x)) : 1);
|
|
|
|
|
|
2002-01-10 01:56:56 +01:00
|
|
|
|
return refers_to_regno_for_reload_p (regno, endregno, in, (rtx*) 0);
|
1992-05-12 04:51:59 +02:00
|
|
|
|
}
|
1992-05-22 23:22:42 +02:00
|
|
|
|
|
|
|
|
|
/* Return nonzero if anything in X contains a MEM. Look also for pseudo
|
|
|
|
|
registers. */
|
|
|
|
|
|
|
|
|
|
int
|
|
|
|
|
refers_to_mem_for_reload_p (x)
|
|
|
|
|
rtx x;
|
|
|
|
|
{
|
rtl.h (rtx_format): Constify a char*.
* rtl.h (rtx_format): Constify a char*.
* rtl.c (rtx_format): Likewise.
(copy_rtx, copy_most_rtx, read_rtx): Likewise.
(init_rtl): Use accessor macro, not `rtx_format'.
* alias.c (rtx_equal_for_memref_p, find_symbolic_term): Constify a
char*.
* caller-save.c (mark_referenced_regs): Likewise.
* combine.c (subst, make_compound_operation, known_cond,
gen_rtx_combine, update_table_tick, get_last_value_validate,
use_crosses_set_p, mark_used_regs_combine, move_deaths): Likewise.
* cse.c (rtx_cost, mention_regs, canon_hash, exp_equiv_p,
refers_to_p, canon_reg, fold_rtx, cse_process_notes,
count_reg_usage): Likewise.
* emit-rtl.c (gen_rtx, copy_rtx_if_shared, reset_used_flags):
Likewise.
* final.c (leaf_renumber_regs_insn): Likewise.
* flow.c (mark_used_regs, find_use_as_address, dump_flow_info,
dump_edge_info, count_reg_references): Likewise.
* function.c (fixup_var_refs_1, walk_fixup_memory_subreg,
fixup_stack_1, purge_addressof_1, instantiate_virtual_regs_1):
Likewise.
* gcse.c (oprs_unchanged_p, hash_expr_1, expr_equiv_p,
oprs_not_set_p, expr_killed_p, compute_transp, find_used_regs,
add_label_notes): Likewise.
* genattrtab.c (attr_rtx, attr_copy_rtx, encode_units_mask,
clear_struct_flag, count_sub_rtxs, count_alternatives,
compares_alternatives_p, contained_in_p, walk_attr_value,
write_expr_attr_cache): Likewise.
* genconfig.c (walk_insn_part): Likewise.
* genemit.c (max_operand_1, gen_exp): Likewise.
* genextract.c (walk_rtx): Likewise.
* genflags.c (num_operands): Likewise.
* genoutput.c (scan_operands): Likewise.
* genpeep.c (match_rtx): Likewise.
* genrecog.c (add_to_sequence): Likewise.
* haifa-sched.c (may_trap_exp, sched_analyze_2, attach_deaths):
Likewise.
* integrate.c (save_constants, copy_for_inline,
copy_rtx_and_substitute, subst_constants, restore_constants):
Likewise.
* jump.c (mark_jump_label, invert_exp, redirect_exp,
rtx_renumbered_equal_p, rtx_equal_for_thread_p): Likewise.
* local-alloc.c (contains_replace_regs, memref_referenced_p):
Likewise.
* loop.c (record_excess_regs, rtx_equal_for_loop_p,
add_label_notes, replace_call_address, count_nonfixed_reads,
invariant_p, find_single_use_in_loop, find_mem_givs,
find_life_end, maybe_eliminate_biv_1, update_reg_last_use):
Likewise.
* print-rtl.c (reg_names, print_rtx): Likewise.
* recog.c (validate_replace_rtx_1, find_single_use_1): Likewise.
* reg-stack.c (stack_regs_mentioned_p, record_label_references,
record_reg_life_pat, swap_rtx_condition, goto_block_pat,
print_blocks): Likewise.
* regclass.c (fix_register, record_address_regs,
reg_scan_mark_refs): Likewise.
* regmove.c (stable_but_for_p): Likewise.
* reload.c (loc_mentioned_in_p, operands_match_p,
find_reloads_toplevsubst_reg_equivs, find_reloads_address_1,
copy_replacements, refers_to_regno_for_reload_p,
refers_to_mem_for_reload_p, find_inc_amount, regno_clobbered_p,
reload_when_needed_name, reg_class_names, debug_reload_to_stream):
Likewise.
* reload1.c (eliminate_regs, scan_paradoxical_subregs,
delete_address_reloads_1, count_occurrences,
reload_cse_mem_conflict_p, reload_combine_note_use,
add_auto_inc_notes): Likewise.
* resource.c (mark_referenced_resources, mark_set_resources):
Likewise.
* rtlanal.c (rtx_unstable_p, rtx_varies_p, rtx_addr_varies_p,
reg_mentioned_p, regs_set_between_p, modified_between_p,
modified_in_p, refers_to_regno_p, reg_overlap_mentioned_p,
rtx_equal_p, volatile_insn_p, volatile_refs_p, side_effects_p,
may_trap_p, inequality_comparisons_p, replace_rtx, replace_regs,
jmp_uses_reg_or_mem, for_each_rtx, regno_use_in): Likewise.
* sched.c (sched_analyze_2, attach_deaths): Likewise.
* stupid.c (stupid_mark_refs): Likewise.
* unroll.c (remap_split_bivs): Likewise.
* varasm.c (mark_constants): Likewise.
* a29k/a29k.c (uses_local_reg_p): Likewise.
* alpha/alpha.c (summarize_insn): Likewise.
* arm/arm.c (symbol_mentioned_p, label_mentioned_p,
eliminate_lr2ip): Likewise.
* arm/thumb.c (symbol_mentioned_p, label_mentioned_p): Likewise.
* i386/i386.c (symbolic_reference_mentioned_p, copy_all_rtx,
reg_mentioned_in_mem): Likewise.
* ns32k/ns32k.c (global_symbolic_reference_mentioned_p,
symbolic_reference_mentioned_p): Likewise.
* romp/romp.c (unsigned_comparisons_p, hash_rtx): Likewise.
* sh/sh.c (regs_used, mark_use): Likewise.
* vax/vax.c (vax_rtx_cost): Likewise.
From-SVN: r28784
1999-08-21 01:05:25 +02:00
|
|
|
|
const char *fmt;
|
1992-05-22 23:22:42 +02:00
|
|
|
|
int i;
|
|
|
|
|
|
|
|
|
|
if (GET_CODE (x) == MEM)
|
|
|
|
|
return 1;
|
|
|
|
|
|
|
|
|
|
if (GET_CODE (x) == REG)
|
|
|
|
|
return (REGNO (x) >= FIRST_PSEUDO_REGISTER
|
|
|
|
|
&& reg_equiv_memory_loc[REGNO (x)]);
|
1999-09-01 16:30:35 +02:00
|
|
|
|
|
1992-05-22 23:22:42 +02:00
|
|
|
|
fmt = GET_RTX_FORMAT (GET_CODE (x));
|
|
|
|
|
for (i = GET_RTX_LENGTH (GET_CODE (x)) - 1; i >= 0; i--)
|
|
|
|
|
if (fmt[i] == 'e'
|
|
|
|
|
&& (GET_CODE (XEXP (x, i)) == MEM
|
|
|
|
|
|| refers_to_mem_for_reload_p (XEXP (x, i))))
|
|
|
|
|
return 1;
|
1999-09-01 16:30:35 +02:00
|
|
|
|
|
1992-05-22 23:22:42 +02:00
|
|
|
|
return 0;
|
|
|
|
|
}
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
|
|
|
|
/* Check the insns before INSN to see if there is a suitable register
|
|
|
|
|
containing the same value as GOAL.
|
|
|
|
|
If OTHER is -1, look for a register in class CLASS.
|
|
|
|
|
Otherwise, just see if register number OTHER shares GOAL's value.
|
|
|
|
|
|
|
|
|
|
Return an rtx for the register found, or zero if none is found.
|
|
|
|
|
|
|
|
|
|
If RELOAD_REG_P is (short *)1,
|
|
|
|
|
we reject any hard reg that appears in reload_reg_rtx
|
|
|
|
|
because such a hard reg is also needed coming into this insn.
|
|
|
|
|
|
|
|
|
|
If RELOAD_REG_P is any other nonzero value,
|
|
|
|
|
it is a vector indexed by hard reg number
|
|
|
|
|
and we reject any hard reg whose element in the vector is nonnegative
|
|
|
|
|
as well as any that appears in reload_reg_rtx.
|
|
|
|
|
|
|
|
|
|
If GOAL is zero, then GOALREG is a register number; we look
|
|
|
|
|
for an equivalent for that register.
|
|
|
|
|
|
|
|
|
|
MODE is the machine mode of the value we want an equivalence for.
|
|
|
|
|
If GOAL is nonzero and not VOIDmode, then it must have mode MODE.
|
|
|
|
|
|
|
|
|
|
This function is used by jump.c as well as in the reload pass.
|
|
|
|
|
|
|
|
|
|
If GOAL is the sum of the stack pointer and a constant, we treat it
|
|
|
|
|
as if it were a constant except that sp is required to be unchanging. */
|
|
|
|
|
|
|
|
|
|
rtx
|
|
|
|
|
find_equiv_reg (goal, insn, class, other, reload_reg_p, goalreg, mode)
|
2001-10-11 05:16:15 +02:00
|
|
|
|
rtx goal;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
rtx insn;
|
|
|
|
|
enum reg_class class;
|
2001-10-11 05:16:15 +02:00
|
|
|
|
int other;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
short *reload_reg_p;
|
|
|
|
|
int goalreg;
|
|
|
|
|
enum machine_mode mode;
|
|
|
|
|
{
|
2001-10-11 05:16:15 +02:00
|
|
|
|
rtx p = insn;
|
1993-05-07 00:18:06 +02:00
|
|
|
|
rtx goaltry, valtry, value, where;
|
2001-10-11 05:16:15 +02:00
|
|
|
|
rtx pat;
|
|
|
|
|
int regno = -1;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
int valueno;
|
|
|
|
|
int goal_mem = 0;
|
|
|
|
|
int goal_const = 0;
|
|
|
|
|
int goal_mem_addr_varies = 0;
|
|
|
|
|
int need_stable_sp = 0;
|
|
|
|
|
int nregs;
|
|
|
|
|
int valuenregs;
|
|
|
|
|
|
|
|
|
|
if (goal == 0)
|
|
|
|
|
regno = goalreg;
|
|
|
|
|
else if (GET_CODE (goal) == REG)
|
|
|
|
|
regno = REGNO (goal);
|
|
|
|
|
else if (GET_CODE (goal) == MEM)
|
|
|
|
|
{
|
|
|
|
|
enum rtx_code code = GET_CODE (XEXP (goal, 0));
|
|
|
|
|
if (MEM_VOLATILE_P (goal))
|
|
|
|
|
return 0;
|
|
|
|
|
if (flag_float_store && GET_MODE_CLASS (GET_MODE (goal)) == MODE_FLOAT)
|
|
|
|
|
return 0;
|
|
|
|
|
/* An address with side effects must be reexecuted. */
|
|
|
|
|
switch (code)
|
|
|
|
|
{
|
|
|
|
|
case POST_INC:
|
|
|
|
|
case PRE_INC:
|
|
|
|
|
case POST_DEC:
|
|
|
|
|
case PRE_DEC:
|
2000-07-28 19:46:18 +02:00
|
|
|
|
case POST_MODIFY:
|
|
|
|
|
case PRE_MODIFY:
|
1992-02-28 11:23:25 +01:00
|
|
|
|
return 0;
|
1997-11-02 22:19:36 +01:00
|
|
|
|
default:
|
|
|
|
|
break;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
}
|
|
|
|
|
goal_mem = 1;
|
|
|
|
|
}
|
|
|
|
|
else if (CONSTANT_P (goal))
|
|
|
|
|
goal_const = 1;
|
|
|
|
|
else if (GET_CODE (goal) == PLUS
|
|
|
|
|
&& XEXP (goal, 0) == stack_pointer_rtx
|
|
|
|
|
&& CONSTANT_P (XEXP (goal, 1)))
|
|
|
|
|
goal_const = need_stable_sp = 1;
|
1998-03-26 11:44:22 +01:00
|
|
|
|
else if (GET_CODE (goal) == PLUS
|
|
|
|
|
&& XEXP (goal, 0) == frame_pointer_rtx
|
|
|
|
|
&& CONSTANT_P (XEXP (goal, 1)))
|
|
|
|
|
goal_const = 1;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
else
|
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
|
|
/* Scan insns back from INSN, looking for one that copies
|
|
|
|
|
a value into or out of GOAL.
|
|
|
|
|
Stop and give up if we reach a label. */
|
|
|
|
|
|
|
|
|
|
while (1)
|
|
|
|
|
{
|
|
|
|
|
p = PREV_INSN (p);
|
|
|
|
|
if (p == 0 || GET_CODE (p) == CODE_LABEL)
|
|
|
|
|
return 0;
|
* Rework fields used to describe positions of bitfields and
modify sizes to be unsigned and use HOST_WIDE_INT.
* alias.c (reg_known_value_size): Now unsigned.
* c-typeck.c (build_unary_op, case ADDR_EXPR): Use byte_position.
(really_start_incremental_init): Use bitsize_zero_node.
(push_init_level, pop_init_level, output_init_element): Likewise.
Use bitsize_unit_node and bitsize_one_node.
(output_pending_init_elements, process_init_element): Likewise.
* combine.c (combine_max_regno, reg_sign_bit_copies): Now unsigned.
(make_extraction): Position and length HOST_WIDE_INT and unsigned
HOST_WIDE_INT, respectively.
(get_pos_from_mask): Passed in value is unsigned HOST_WIDE_INT.
(num_sign_bit_copies): Returns unsigned.
BITWIDTH now unsigned; rework arithmetic.
Remove recursive call from arg to MAX.
(combine_instructions, init_reg_last_arrays): NREGS now unsigned.
(setup_incoming_promotions, can_combine_p, try_combine, simplify_set):
REGNO now unsigned.
(set_nonzero_bit_and_sign_copies): NUM now unsigned.
(find_split_point, expand_compound_operation, make_extraction): LEN
now unsigned HOST_WIDE_INT, POS now HOST_WIDE_INT.
(make_field_assignment): Likewise.
(combine_simplify_rtx): Add cast.
(expand_compound_operation): MODEWIDTH now unsigned; rework arithmetic.
(force_to_mode): WIDTH now unsigned; add cast.
(if_then_else_cond): SIZE now unsigned.
(nonzero_bits): MODE_WIDTH, RESULT_WIDTH, and WIDTH now unsigned.
(extended_count): Now returns unsigned.
(simplify_shift_const): COUNT unsigned; arg is now INPUT_COUNT.
Add SIGNED_COUNT variable; MODE_WORDS and FIRST_COUNT now unsigned.
(simplify_comparison): MODE_WIDTH now unsigned.
(update_table_tick): REGNO and ENDREGNO now unsigned; new var R.
(mark_used_regs_combine): Likewise; rework arithmetic.
(record_value_for_reg): REGNO, ENDREGNO, and I now unsigned.
(record_dead_and_set_regs, reg_dead_at_p, distribute_notes): Likewise.
(record_promoted_value): REGNO now unsigned.
(get_last_value_validate): REGNO, ENDREGNO, and J now unsigned.
(get_last_value): REGNO now unsigned.
(use_crosses_set_p): REGNO and ENDREGNO now unsigned.
(reg_dead_regno, reg_dead_endregno): Now unsigned.
(remove_death): Arg REGNO now unsigned.
(move_deaths): REGNO, DEADREGNO, DEADEND, OUREND, and I now unsigned.
(reg_bitfield_target_p): REGNO, REGNO, ENDREGNO, and ENDTREGNO
now unsigned.
* convert.c (convert_to_integer): INPREC and OUTPREC now unsigned.
* cse.c (struct qty_table_elem): FIRST_REG and LAST_REG now unsigned.
(struct cse_reg_info): REGNO now unsigned.
(cached_regno): Now unsigned.
(REGNO_QTY_VALID_P): Add cast.
(make_new_qty, make_regs_eqv, delete_reg_eqiv): Regno args unsigned.
(remove_invalid_regs): Likewise.
(remove_invalid_subreg_refs): Likewise; arg WORD also unsigned
as are variables END and I.
(get_cse_reg_info, insert): Likewise.
(mention_regs, invalidate_for_call): REGNO, ENDREGNO, and I unsigned.
(canon_hash): Likewise.
(insert_regs, lookup_for_remove): REGNO now unsigned.
(invalidate): REGNO, ENDREGNO, TREGNO, and TENDREGNO now unsigned.
New variable RN.
* dbxout.c (dbxout_parms, dbxout_reg_parms): Don't check for REGNO < 0.
* dwarf2out.c (dwarf2ou_frame_debug_expr): Remove cast.
* emit-rtl.c (subreg_realpart_p): Add cast.
(operand_subword): Arg I is now unsigned as is var PARTWORDS.
(operand_subword_force): Arg I is now unsigned.
* except.c (eh_regs): Variable I is now unsigned.
* explow.c (hard_function_value): BYTES is unsigned HOST_WIDE_INT.
* expmed.c (store_fixed_bit_field): Position is HOST_WIDE_INT;
length is unsigned HOST_WIDE_INT; likewise for internal variables.
(store_split_bit_field, extract_fixed_bit_field): Likewise.
(extract_split_bit_field, store_bit_field, extract_bit_field):
Likewise.
* expr.c (store_constructor_fields, store_constructor, store_field):
Positions are HOST_WIDE_INT and lengths are unsigned HOST_WIDE_INT.
(expand_assignment, expand_expr, expand_expr_unaligned): Likewise.
(do_jump): Likewise.
(move_by_pieces, move_by_pieces_ninsns, clear_by_pieces):
MAX_SIZE is now unsigned.
(emit_group_load): BYTEPOS is HOST_WIDE_INT; BYTELEN is unsigned.
(emit_group_store): Likewise.
(emit_move_insn): I now unsigned.
(store_constructor): Use host_integerp, tree_low_cst, and
bitsize_unit_node.
(get_inner_reference): Return bitpos and bitsize as HOST_WIDE_INT.
Rework all calculations to use trees and new fields.
* expr.h (promoted_input_arg): Regno now unsigned.
(store_bit_field, extract_bit_field): Adjust types of pos and size.
(mark_seen_cases): Arg is HOST_WIDE_INT.
* flow.c (verify_wide_reg_1): REGNO now unsigned.
* fold-const.c (decode_field_reference): Size and pos HOST_WIDE_INT;
precisions and alignments are unsigned.
(optimize_bit_field_compare, fold_truthop): Likewise.
(int_const_binop): Adjust threshold for size_int_type_wide call.
(fold_convert): Likewise.
(size_int_type_wide): Make table larger and fix thinko that only
had half of table used.
(all_ones_mask_p, fold): Precisions are unsigned.
* function.c (put_reg_info_stack): REGNO is unsigned.
(instantiate_decl): Size is HOST_WIDE_INT.
(instantiate_virtual_regs): I is unsigned.
(assign_parms): REGNO, REGNOI, and REGNOR are unsigned.
(promoted_input_arg): REGNO is unsigned.
* function.h (struct function): x_max_parm_reg is now unsigned.
* gcse.c (max_gcse_regno): Now unsigned.
(struct null_pointer_info): min_reg and max_reg now unsigned.
(lookup_set, next_set): REGNO arg now unsigned.
(compute_hash_table): REGNO and I now unsigned.
(handle_avail_expr): regnum_for_replacing now unsigned.
(cprop_insn): REGNO now unsigned.
(delete_null_pointer_checks_1): BLOCK_REG now pointer to unsigned.
* ggc-common.c (ggc_mark_tree_children, case FIELD_DECL): New case.
* global.c (set_preference): SRC_REGNO, DEST_REGNO, and I now unsigned.
* hard-reg-set.h (reg_class_size): Now unsigned.
* integrate.c (mark_stores): LAST_REG and I now unsigned; new UREGNO.
* jump.c (mark_modified_reg): I now unsigned; add cast.
(rtx_equal_for_thread_p): Add cast.
* loop.c (max_reg_before_loop): Now unsigned.
(struct_movable): REGNO now unsigned.
(try_copy_prop): REGNO arg unsigned.
(regs_match_p): XN and YN now unsigned.
(consec_sets_invariant_p, maybe_eliminate_biv): REGNO now unsigned.
(strength_reduce): Likewise; NREGS also unsigned.
(first_increment_giv, last_increment_giv unsigned): Now unsigned.
* loop.h (struct iv_class): REGNO now unsigned.
(max_reg_before_loop, first_increment_giv, last_increment_giv):
Now unsigned.
* machmode.h (mode_size, mode_unit_size): Now unsigned.
(mode_for_size, smallest_mode_for_size): Pass size as unsigned.
* optabs.c (expand_binop): I and NWORDS now unsigned.
(expand_unop): I now unsigned.
* print-tree.c (print_node): Don't print DECL_FIELD_BITPOS, but do
print DECL_FIELD_OFFSET and DECL_FIELD_BIT_OFFSET.
* real.c (significand_size): Now returns unsigned.
* real.h (significand_size): Likewise.
* regclass.c (reg_class_size): Now unsigned.
(choose_hard_reg_mode): Both operands now unsigned.
(record_reg_classes): REGNO and NR now unsigned.
(reg_scan): NREGS now unsigned.
(reg_scan_update): old_max_regno now unsigned.
(reg_scan_mark_refs): Arg MIN_REGNO and var REGNO now unsigned.
* reload.c (find_valid_class): BEST_SIZE now unsigned.
(find_dummy_reload): REGNO, NWORDS, and I now unsigned.
(hard_reg_set_here_p): Args BEG_REGNO and END_REGNO now unsigned.
Likewise for variable R.
(refers_to_regno_for_reload_p): Args REGNO and END_REGNO now unsigned,
as are variables INNER_REGNO and INNER_ENDREGNO; add new variable R.
(find_equiv_reg): Add casts.
(regno_clobbered_p): Arg REGNO now unsigned.
* reload.h (struct reload): NREGS now unsigned.
(refers_to_regno_for_reload_p): Regno args are unsigned.
(regno_clobbered_p): Likewise.
* reload1.c (reg_max_ref_width, spill_stack_slot_width): Now unsigned.
(compute_use_by_pseudos): REGNO now unsigned.
(find_reg): I and J now unsigned, new variable K, and change loop
variables accordingly; THIS_NREGS now unsigned.
(alter_reg): INHERENT_SIZE and TOTAL_SIZE now unsigned.
(spill_hard_reg): REGNO arg now unsigned; add casts.
(forget_old_reloads_1): REGNO, NR, and I now unsigned.
(mark_reload_reg_in_use): Arg REGNO and vars NREGS and I now unsigned.
(clear_reload_reg_in_use): Arg REGNO and vars NREGS, START_REGNO,
END_REGNO, CONFLICT_START, and CONFLICT_END now unsigned.
(reload_reg_free_p, reload_reg_reaches_end_p): Arg REGNO now unsigned.
(choose_reload_regs): MAX_GROUP_SIZE now unsigned.
(emit_reload_insns): REGNO now unsigned.
(reload_cse_move2add): Add cast.
(move2add_note_store): REGNO and I now unsigned; new variable ENDREGNO
and rework loop.
* resource.c (mark_referenced_resources, mark_set_resources): New
variable R; REGNO and LAST_REGNO now unsigned.
(mark_target_live_regs): J and REGNO now unsigned.
* rtl.c (mode_size, mode_unit_size): Now unsigned.
* rtl.h (union rtunion_def): New field rtuint.
(XCUINT): New macro.
(ADDRESSOF_REGNO, REGNO, SUBREG_WORD): New XCUINT.
(operand_subword, operand_subword_force): Word number is unsigned.
(choose_hard_reg_mode): Operands are unsigned.
(refers_to-regno_p, dead_or_set_regno_p): Regno arg is unsigned.
(find_regno_note, find_regno_fusage, replace_regs): Likewise.
(regno_use_in, combine_instructions, remove_death): Likewise.
(reg_scan, reg_scan_update): Likewise.
(extended_count): Return is unsigned.
* rtlanal.c (refers_to_regno_p): Args REGNO and ENDREGNO and vars I,
INNER_REGNO, and INNER_ENDREGNO now unsigned; new variable X_REGNO.
(reg_overlap_mentioned_p): REGNO and ENDREGNO now unsigned.
(reg_set_last_first_regno, reg_set_last_last_regno): Now unsigned.
(reg_reg_last_1): FIRS and LAST now unsigned.
(dead_or_set_p): REGNO, LAST_REGNO, and I now unsigned.
(dead_or_set_regno_p): Arg TEST_REGNO and vars REGNO and ENDREGNO
now unsigned.
(find_regno_note, regno_use_in): Arg REGNO now unsigned.
(find_regno_fusage): Likewise; also var REGNOTE now unsigned.
(find_reg_fusage): Variables REGNO, END_REGNO, and I now unsigned.
(replace_regs): Arg NREGS now unsigned.
* sdbout.c (sdbout_parms, sdbout_reg_parms): Don't check REGNO < 0.
* simplify-rtx.c (simplify_unary_operation): WIDTH now unsigned.
(simplify_binary_operation): Likewise.
(cselib_invalidate_regno): Arg REGNO and variables ENDREGNO, I, and
THIS_LAST now unsigned.
(cselib_record_set): Add cast.
* ssa.c (ssa_max_reg_num): Now unsigned.
(rename_block): REGNO now unsigned.
* stmt.c (expand_return): Bit positions unsigned HOST_WIDE_INT;
sizes now unsigned.
(all_cases_count): Just return -1 not -2.
COUNT, MINVAL, and LASTVAL now HOST_WIDE_INT.
Rework tests to use trees whenever possible.
Use host_integerp and tree_low_cst.
(mark_seen_cases): COUNT arg now HOST_WIDE_INT;
Likewise variable NEXT_NODE_OFFSET; XLO now unsigned.
(check_for_full_enumeration_handing): BYTES_NEEDED, I to HOST_WIDE_INT.
* stor-layout.c (mode_for_size): SIZE arg now unsigned.
(smallest_mode_for_size): Likewise.
(layout_decl): Simplify handing of a specified DECL_SIZE_UNIT.
KNOWN_ALIGN is now an alignment, so simplify code.
Don't turn off DECL_BIT_FIELD if field is BLKmode, but not type.
(start_record_layout): Renamed from new_record_layout_info.
Update to new fields.
(debug_rli, normalize_rli, rli_size_unit_so_far, rli_size_so_far):
New functions.
(place_union_field): Renamed from layout_union_field.
Update to use new fields in rli.
(place_field): Renamed from layout_field.
Major rewrite to use new fields in rli; pass alignment to layout_decl.
(finalize_record_size): Rework to use new fields in rli and handle
union.
(compute_record_mode): Rework to simplify and to use new DECL fields.
(finalize_type_size): Make rounding more consistent.
(finish_union_layout): Deleted.
(layout_type, case VOID_TYPE): Don't set TYPE_SIZE_UNIT either.
(layout_type, case RECORD_TYPE): Call new function names.
(initialize_sizetypes): Set TYPE_IS_SIZETYPE.
(set_sizetype): Set TYPE_IS_SIZETYPE earlier.
(get_best_mode): UNIT is now unsigned; remove casts.
* tree.c (bit_position): Compute from new fields.
(byte_position, int_byte_position): New functions.
(print_type_hash_statistics): Cast to remove warning.
(build_range_type): Use host_integerp and tree_low_cst to try to hash.
(build_index_type): Likewise; make subtype of sizetype.
(build_index_2_type): Pass sizetype to build_range_type.
(build_common_tree_nodes): Use size_int and bitsize_int to
initialize nodes; add bitsize_{zero,one,unit}_node.
* tree.h (DECL_FIELD_CONTEXT): Use FIELD_DECL_CHECK.
(DECL_BIT_FIELD_TYPE, DECL_QUALIFIER, DECL_FCONTEXT): Likewise.
(DECL_PACKED, DECL_BIT_FIELD): Likewise.
(DECL_FIELD_BITPOS): Deleted.
(DECL_FIELD_OFFSET, DECL_FIELD_BIT_OFFSET): New fields.
(DECL_RESULT, DECL_SAVED_INSNS): Use FUNCTION_DECL_CHECK.
(DECL_FRAME_SIZE, DECL_FUNCTION_CODE, DECL_NO_STATIC_CHAIN): Likewise.
(DECL_INLINE, DECL_BUILT_IN_NONANSI, DECL_IS_MALLOC): Likewise.
(DECL_BUILT_IN_CLASS, DECL_STATIC_CONSTRUCTOR): Likewise.
(DECL_STATIC_DESTRUCTOR, DECL_NO_CHECK_MEMORY_USAGE): Likewise.
(DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT, DECL_NO_LIMIT_STACK) Likewise.
(DECL_ORIGINAL_TYPE, TYPE_DECL_SUPPRESS_DEBUG): Use TYPE_DECL_CHECK.
(DECL_ARG_TYPE_AS_WRITEN, DECL_ARG_TYPE): Use PARM_DECL_CHECK.
(DECL_INCOMING_RTL, DECL_TRANSPARENT_UNION): Likewise.
(DECL_ALIGN): Adjust to new field in union.
(DECL_OFFSET_ALIGN): New field.
(DECL_ERROR_ISSUED, DECL_TOO_LATE): Use LABEL_DECL_CHECK.
(DECL_IN_TEXT_SECTION): Use VAR_DECL_CHECK.
(union tree_decl): Add struct for both aligns.
(enum tree_index): Add TI_BITSIZE_{ZERO,ONE,UNIT}.
(bitsize_zero_node, bitsize_one_node, bitsize_unit_node): Added.
(struct record_layout_info): Rework fields to have offset
alignment and byte and bit position.
(start_record_layout, place_field): Renamed from old names.
(rli_size_so_far, rli_size_unit_so_far, normalize_rli): New decls.
(byte_position, int_byte_position): Likewise.
(get_inner_reference): Change types of position and length.
* unroll.c (unroll_loop): New variable R; use for some loops.
MAX_LOCAL_REGNUM and MAXREGNUM now unsigned.
(calculate_giv_inc): Arg REGNO now unsigned.
(copy_loop_body): REGNO and SRC_REGNO now unsigned.
* varasm.c (assemble_variable): Clean up handling of size using
host_integerp and tree_low_cst.
(decode_addr_const): Use byte, not bit, position.
(output_constructor): bitpos and offsets are HOST_WIDE_INT;
use tree_low_cst and int_bit_position.
* objc/objc-act.c (build_ivar_list_initializer): Use byte_position.
* ch/actions.c (check_missing_cases): BYTES_NEEDED is HOST_WIDE_INT.
* ch/typeck.c (expand_constant_to_buffer): Use int_byte_position.
(extract_constant_from_buffer): Likewise.
* cp/class.c (build_vbase_pointer_fields): layout_field now
place_field.
(get_vfield_offset): Use byte_position.
(set_rtti_entry): Set OFFSET to ssizetype zero.
(get_binfo_offset_as_int): Deleted.
(dfs_record_base_offsets): Use tree_low_cst.
(dfs_search_base_offsets): Likewise.
(layout_nonempty_base_or_field): Reflect changes in RLI format
and call byte_position.
(layout_empty_base): Convert offset to ssizetype.
(build_base_field): use rli_size_unit_so_far.
(dfs_propagate_binfo_offsets): Do computation in proper type.
(layout_virtual_bases): Pass ssizetype to propagate_binfo_offsets.
(layout_class_type): Reflect changes in RLI names and fields.
(finish_struct_1): Set DECL_FIELD_OFFSET.
* cp/dump.c (dequeue_and_dump): Call bit_position.
* cp/expr.c (cplus_expand_constant): Use byte_position.
* cp/rtti.c (expand_class_desc): Use bitsize_one_node.
* cp/typeck.c (build_component_addr): Use byte_position and don't
special case for zero offset.
* f/com.c (ffecom_tree_canonize_ptr_): Use bitsize_zero_node.
(ffecom_tree_canonize_ref_): Likewise.
* java/class.c (make_field_value): Use byte_position.
* java/expr.c (JAVA_ARRAY_LENGTH_OFFSET): Use byte_position.
(java_array_data_offset): Likewise.
* java/java-tree.h (MAYBE_CREATE_TYPE_TYPE_LANG_SPECIFIC): Add case to
bzero call.
From-SVN: r32742
2000-03-25 19:34:13 +01:00
|
|
|
|
|
1992-02-28 11:23:25 +01:00
|
|
|
|
if (GET_CODE (p) == INSN
|
1996-07-04 00:07:53 +02:00
|
|
|
|
/* If we don't want spill regs ... */
|
1993-03-29 13:27:52 +02:00
|
|
|
|
&& (! (reload_reg_p != 0
|
|
|
|
|
&& reload_reg_p != (short *) (HOST_WIDE_INT) 1)
|
* Rework fields used to describe positions of bitfields and
modify sizes to be unsigned and use HOST_WIDE_INT.
* alias.c (reg_known_value_size): Now unsigned.
* c-typeck.c (build_unary_op, case ADDR_EXPR): Use byte_position.
(really_start_incremental_init): Use bitsize_zero_node.
(push_init_level, pop_init_level, output_init_element): Likewise.
Use bitsize_unit_node and bitsize_one_node.
(output_pending_init_elements, process_init_element): Likewise.
* combine.c (combine_max_regno, reg_sign_bit_copies): Now unsigned.
(make_extraction): Position and length HOST_WIDE_INT and unsigned
HOST_WIDE_INT, respectively.
(get_pos_from_mask): Passed in value is unsigned HOST_WIDE_INT.
(num_sign_bit_copies): Returns unsigned.
BITWIDTH now unsigned; rework arithmetic.
Remove recursive call from arg to MAX.
(combine_instructions, init_reg_last_arrays): NREGS now unsigned.
(setup_incoming_promotions, can_combine_p, try_combine, simplify_set):
REGNO now unsigned.
(set_nonzero_bit_and_sign_copies): NUM now unsigned.
(find_split_point, expand_compound_operation, make_extraction): LEN
now unsigned HOST_WIDE_INT, POS now HOST_WIDE_INT.
(make_field_assignment): Likewise.
(combine_simplify_rtx): Add cast.
(expand_compound_operation): MODEWIDTH now unsigned; rework arithmetic.
(force_to_mode): WIDTH now unsigned; add cast.
(if_then_else_cond): SIZE now unsigned.
(nonzero_bits): MODE_WIDTH, RESULT_WIDTH, and WIDTH now unsigned.
(extended_count): Now returns unsigned.
(simplify_shift_const): COUNT unsigned; arg is now INPUT_COUNT.
Add SIGNED_COUNT variable; MODE_WORDS and FIRST_COUNT now unsigned.
(simplify_comparison): MODE_WIDTH now unsigned.
(update_table_tick): REGNO and ENDREGNO now unsigned; new var R.
(mark_used_regs_combine): Likewise; rework arithmetic.
(record_value_for_reg): REGNO, ENDREGNO, and I now unsigned.
(record_dead_and_set_regs, reg_dead_at_p, distribute_notes): Likewise.
(record_promoted_value): REGNO now unsigned.
(get_last_value_validate): REGNO, ENDREGNO, and J now unsigned.
(get_last_value): REGNO now unsigned.
(use_crosses_set_p): REGNO and ENDREGNO now unsigned.
(reg_dead_regno, reg_dead_endregno): Now unsigned.
(remove_death): Arg REGNO now unsigned.
(move_deaths): REGNO, DEADREGNO, DEADEND, OUREND, and I now unsigned.
(reg_bitfield_target_p): REGNO, REGNO, ENDREGNO, and ENDTREGNO
now unsigned.
* convert.c (convert_to_integer): INPREC and OUTPREC now unsigned.
* cse.c (struct qty_table_elem): FIRST_REG and LAST_REG now unsigned.
(struct cse_reg_info): REGNO now unsigned.
(cached_regno): Now unsigned.
(REGNO_QTY_VALID_P): Add cast.
(make_new_qty, make_regs_eqv, delete_reg_eqiv): Regno args unsigned.
(remove_invalid_regs): Likewise.
(remove_invalid_subreg_refs): Likewise; arg WORD also unsigned
as are variables END and I.
(get_cse_reg_info, insert): Likewise.
(mention_regs, invalidate_for_call): REGNO, ENDREGNO, and I unsigned.
(canon_hash): Likewise.
(insert_regs, lookup_for_remove): REGNO now unsigned.
(invalidate): REGNO, ENDREGNO, TREGNO, and TENDREGNO now unsigned.
New variable RN.
* dbxout.c (dbxout_parms, dbxout_reg_parms): Don't check for REGNO < 0.
* dwarf2out.c (dwarf2ou_frame_debug_expr): Remove cast.
* emit-rtl.c (subreg_realpart_p): Add cast.
(operand_subword): Arg I is now unsigned as is var PARTWORDS.
(operand_subword_force): Arg I is now unsigned.
* except.c (eh_regs): Variable I is now unsigned.
* explow.c (hard_function_value): BYTES is unsigned HOST_WIDE_INT.
* expmed.c (store_fixed_bit_field): Position is HOST_WIDE_INT;
length is unsigned HOST_WIDE_INT; likewise for internal variables.
(store_split_bit_field, extract_fixed_bit_field): Likewise.
(extract_split_bit_field, store_bit_field, extract_bit_field):
Likewise.
* expr.c (store_constructor_fields, store_constructor, store_field):
Positions are HOST_WIDE_INT and lengths are unsigned HOST_WIDE_INT.
(expand_assignment, expand_expr, expand_expr_unaligned): Likewise.
(do_jump): Likewise.
(move_by_pieces, move_by_pieces_ninsns, clear_by_pieces):
MAX_SIZE is now unsigned.
(emit_group_load): BYTEPOS is HOST_WIDE_INT; BYTELEN is unsigned.
(emit_group_store): Likewise.
(emit_move_insn): I now unsigned.
(store_constructor): Use host_integerp, tree_low_cst, and
bitsize_unit_node.
(get_inner_reference): Return bitpos and bitsize as HOST_WIDE_INT.
Rework all calculations to use trees and new fields.
* expr.h (promoted_input_arg): Regno now unsigned.
(store_bit_field, extract_bit_field): Adjust types of pos and size.
(mark_seen_cases): Arg is HOST_WIDE_INT.
* flow.c (verify_wide_reg_1): REGNO now unsigned.
* fold-const.c (decode_field_reference): Size and pos HOST_WIDE_INT;
precisions and alignments are unsigned.
(optimize_bit_field_compare, fold_truthop): Likewise.
(int_const_binop): Adjust threshold for size_int_type_wide call.
(fold_convert): Likewise.
(size_int_type_wide): Make table larger and fix thinko that only
had half of table used.
(all_ones_mask_p, fold): Precisions are unsigned.
* function.c (put_reg_info_stack): REGNO is unsigned.
(instantiate_decl): Size is HOST_WIDE_INT.
(instantiate_virtual_regs): I is unsigned.
(assign_parms): REGNO, REGNOI, and REGNOR are unsigned.
(promoted_input_arg): REGNO is unsigned.
* function.h (struct function): x_max_parm_reg is now unsigned.
* gcse.c (max_gcse_regno): Now unsigned.
(struct null_pointer_info): min_reg and max_reg now unsigned.
(lookup_set, next_set): REGNO arg now unsigned.
(compute_hash_table): REGNO and I now unsigned.
(handle_avail_expr): regnum_for_replacing now unsigned.
(cprop_insn): REGNO now unsigned.
(delete_null_pointer_checks_1): BLOCK_REG now pointer to unsigned.
* ggc-common.c (ggc_mark_tree_children, case FIELD_DECL): New case.
* global.c (set_preference): SRC_REGNO, DEST_REGNO, and I now unsigned.
* hard-reg-set.h (reg_class_size): Now unsigned.
* integrate.c (mark_stores): LAST_REG and I now unsigned; new UREGNO.
* jump.c (mark_modified_reg): I now unsigned; add cast.
(rtx_equal_for_thread_p): Add cast.
* loop.c (max_reg_before_loop): Now unsigned.
(struct_movable): REGNO now unsigned.
(try_copy_prop): REGNO arg unsigned.
(regs_match_p): XN and YN now unsigned.
(consec_sets_invariant_p, maybe_eliminate_biv): REGNO now unsigned.
(strength_reduce): Likewise; NREGS also unsigned.
(first_increment_giv, last_increment_giv unsigned): Now unsigned.
* loop.h (struct iv_class): REGNO now unsigned.
(max_reg_before_loop, first_increment_giv, last_increment_giv):
Now unsigned.
* machmode.h (mode_size, mode_unit_size): Now unsigned.
(mode_for_size, smallest_mode_for_size): Pass size as unsigned.
* optabs.c (expand_binop): I and NWORDS now unsigned.
(expand_unop): I now unsigned.
* print-tree.c (print_node): Don't print DECL_FIELD_BITPOS, but do
print DECL_FIELD_OFFSET and DECL_FIELD_BIT_OFFSET.
* real.c (significand_size): Now returns unsigned.
* real.h (significand_size): Likewise.
* regclass.c (reg_class_size): Now unsigned.
(choose_hard_reg_mode): Both operands now unsigned.
(record_reg_classes): REGNO and NR now unsigned.
(reg_scan): NREGS now unsigned.
(reg_scan_update): old_max_regno now unsigned.
(reg_scan_mark_refs): Arg MIN_REGNO and var REGNO now unsigned.
* reload.c (find_valid_class): BEST_SIZE now unsigned.
(find_dummy_reload): REGNO, NWORDS, and I now unsigned.
(hard_reg_set_here_p): Args BEG_REGNO and END_REGNO now unsigned.
Likewise for variable R.
(refers_to_regno_for_reload_p): Args REGNO and END_REGNO now unsigned,
as are variables INNER_REGNO and INNER_ENDREGNO; add new variable R.
(find_equiv_reg): Add casts.
(regno_clobbered_p): Arg REGNO now unsigned.
* reload.h (struct reload): NREGS now unsigned.
(refers_to_regno_for_reload_p): Regno args are unsigned.
(regno_clobbered_p): Likewise.
* reload1.c (reg_max_ref_width, spill_stack_slot_width): Now unsigned.
(compute_use_by_pseudos): REGNO now unsigned.
(find_reg): I and J now unsigned, new variable K, and change loop
variables accordingly; THIS_NREGS now unsigned.
(alter_reg): INHERENT_SIZE and TOTAL_SIZE now unsigned.
(spill_hard_reg): REGNO arg now unsigned; add casts.
(forget_old_reloads_1): REGNO, NR, and I now unsigned.
(mark_reload_reg_in_use): Arg REGNO and vars NREGS and I now unsigned.
(clear_reload_reg_in_use): Arg REGNO and vars NREGS, START_REGNO,
END_REGNO, CONFLICT_START, and CONFLICT_END now unsigned.
(reload_reg_free_p, reload_reg_reaches_end_p): Arg REGNO now unsigned.
(choose_reload_regs): MAX_GROUP_SIZE now unsigned.
(emit_reload_insns): REGNO now unsigned.
(reload_cse_move2add): Add cast.
(move2add_note_store): REGNO and I now unsigned; new variable ENDREGNO
and rework loop.
* resource.c (mark_referenced_resources, mark_set_resources): New
variable R; REGNO and LAST_REGNO now unsigned.
(mark_target_live_regs): J and REGNO now unsigned.
* rtl.c (mode_size, mode_unit_size): Now unsigned.
* rtl.h (union rtunion_def): New field rtuint.
(XCUINT): New macro.
(ADDRESSOF_REGNO, REGNO, SUBREG_WORD): New XCUINT.
(operand_subword, operand_subword_force): Word number is unsigned.
(choose_hard_reg_mode): Operands are unsigned.
(refers_to-regno_p, dead_or_set_regno_p): Regno arg is unsigned.
(find_regno_note, find_regno_fusage, replace_regs): Likewise.
(regno_use_in, combine_instructions, remove_death): Likewise.
(reg_scan, reg_scan_update): Likewise.
(extended_count): Return is unsigned.
* rtlanal.c (refers_to_regno_p): Args REGNO and ENDREGNO and vars I,
INNER_REGNO, and INNER_ENDREGNO now unsigned; new variable X_REGNO.
(reg_overlap_mentioned_p): REGNO and ENDREGNO now unsigned.
(reg_set_last_first_regno, reg_set_last_last_regno): Now unsigned.
(reg_reg_last_1): FIRS and LAST now unsigned.
(dead_or_set_p): REGNO, LAST_REGNO, and I now unsigned.
(dead_or_set_regno_p): Arg TEST_REGNO and vars REGNO and ENDREGNO
now unsigned.
(find_regno_note, regno_use_in): Arg REGNO now unsigned.
(find_regno_fusage): Likewise; also var REGNOTE now unsigned.
(find_reg_fusage): Variables REGNO, END_REGNO, and I now unsigned.
(replace_regs): Arg NREGS now unsigned.
* sdbout.c (sdbout_parms, sdbout_reg_parms): Don't check REGNO < 0.
* simplify-rtx.c (simplify_unary_operation): WIDTH now unsigned.
(simplify_binary_operation): Likewise.
(cselib_invalidate_regno): Arg REGNO and variables ENDREGNO, I, and
THIS_LAST now unsigned.
(cselib_record_set): Add cast.
* ssa.c (ssa_max_reg_num): Now unsigned.
(rename_block): REGNO now unsigned.
* stmt.c (expand_return): Bit positions unsigned HOST_WIDE_INT;
sizes now unsigned.
(all_cases_count): Just return -1 not -2.
COUNT, MINVAL, and LASTVAL now HOST_WIDE_INT.
Rework tests to use trees whenever possible.
Use host_integerp and tree_low_cst.
(mark_seen_cases): COUNT arg now HOST_WIDE_INT;
Likewise variable NEXT_NODE_OFFSET; XLO now unsigned.
(check_for_full_enumeration_handing): BYTES_NEEDED, I to HOST_WIDE_INT.
* stor-layout.c (mode_for_size): SIZE arg now unsigned.
(smallest_mode_for_size): Likewise.
(layout_decl): Simplify handing of a specified DECL_SIZE_UNIT.
KNOWN_ALIGN is now an alignment, so simplify code.
Don't turn off DECL_BIT_FIELD if field is BLKmode, but not type.
(start_record_layout): Renamed from new_record_layout_info.
Update to new fields.
(debug_rli, normalize_rli, rli_size_unit_so_far, rli_size_so_far):
New functions.
(place_union_field): Renamed from layout_union_field.
Update to use new fields in rli.
(place_field): Renamed from layout_field.
Major rewrite to use new fields in rli; pass alignment to layout_decl.
(finalize_record_size): Rework to use new fields in rli and handle
union.
(compute_record_mode): Rework to simplify and to use new DECL fields.
(finalize_type_size): Make rounding more consistent.
(finish_union_layout): Deleted.
(layout_type, case VOID_TYPE): Don't set TYPE_SIZE_UNIT either.
(layout_type, case RECORD_TYPE): Call new function names.
(initialize_sizetypes): Set TYPE_IS_SIZETYPE.
(set_sizetype): Set TYPE_IS_SIZETYPE earlier.
(get_best_mode): UNIT is now unsigned; remove casts.
* tree.c (bit_position): Compute from new fields.
(byte_position, int_byte_position): New functions.
(print_type_hash_statistics): Cast to remove warning.
(build_range_type): Use host_integerp and tree_low_cst to try to hash.
(build_index_type): Likewise; make subtype of sizetype.
(build_index_2_type): Pass sizetype to build_range_type.
(build_common_tree_nodes): Use size_int and bitsize_int to
initialize nodes; add bitsize_{zero,one,unit}_node.
* tree.h (DECL_FIELD_CONTEXT): Use FIELD_DECL_CHECK.
(DECL_BIT_FIELD_TYPE, DECL_QUALIFIER, DECL_FCONTEXT): Likewise.
(DECL_PACKED, DECL_BIT_FIELD): Likewise.
(DECL_FIELD_BITPOS): Deleted.
(DECL_FIELD_OFFSET, DECL_FIELD_BIT_OFFSET): New fields.
(DECL_RESULT, DECL_SAVED_INSNS): Use FUNCTION_DECL_CHECK.
(DECL_FRAME_SIZE, DECL_FUNCTION_CODE, DECL_NO_STATIC_CHAIN): Likewise.
(DECL_INLINE, DECL_BUILT_IN_NONANSI, DECL_IS_MALLOC): Likewise.
(DECL_BUILT_IN_CLASS, DECL_STATIC_CONSTRUCTOR): Likewise.
(DECL_STATIC_DESTRUCTOR, DECL_NO_CHECK_MEMORY_USAGE): Likewise.
(DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT, DECL_NO_LIMIT_STACK) Likewise.
(DECL_ORIGINAL_TYPE, TYPE_DECL_SUPPRESS_DEBUG): Use TYPE_DECL_CHECK.
(DECL_ARG_TYPE_AS_WRITEN, DECL_ARG_TYPE): Use PARM_DECL_CHECK.
(DECL_INCOMING_RTL, DECL_TRANSPARENT_UNION): Likewise.
(DECL_ALIGN): Adjust to new field in union.
(DECL_OFFSET_ALIGN): New field.
(DECL_ERROR_ISSUED, DECL_TOO_LATE): Use LABEL_DECL_CHECK.
(DECL_IN_TEXT_SECTION): Use VAR_DECL_CHECK.
(union tree_decl): Add struct for both aligns.
(enum tree_index): Add TI_BITSIZE_{ZERO,ONE,UNIT}.
(bitsize_zero_node, bitsize_one_node, bitsize_unit_node): Added.
(struct record_layout_info): Rework fields to have offset
alignment and byte and bit position.
(start_record_layout, place_field): Renamed from old names.
(rli_size_so_far, rli_size_unit_so_far, normalize_rli): New decls.
(byte_position, int_byte_position): Likewise.
(get_inner_reference): Change types of position and length.
* unroll.c (unroll_loop): New variable R; use for some loops.
MAX_LOCAL_REGNUM and MAXREGNUM now unsigned.
(calculate_giv_inc): Arg REGNO now unsigned.
(copy_loop_body): REGNO and SRC_REGNO now unsigned.
* varasm.c (assemble_variable): Clean up handling of size using
host_integerp and tree_low_cst.
(decode_addr_const): Use byte, not bit, position.
(output_constructor): bitpos and offsets are HOST_WIDE_INT;
use tree_low_cst and int_bit_position.
* objc/objc-act.c (build_ivar_list_initializer): Use byte_position.
* ch/actions.c (check_missing_cases): BYTES_NEEDED is HOST_WIDE_INT.
* ch/typeck.c (expand_constant_to_buffer): Use int_byte_position.
(extract_constant_from_buffer): Likewise.
* cp/class.c (build_vbase_pointer_fields): layout_field now
place_field.
(get_vfield_offset): Use byte_position.
(set_rtti_entry): Set OFFSET to ssizetype zero.
(get_binfo_offset_as_int): Deleted.
(dfs_record_base_offsets): Use tree_low_cst.
(dfs_search_base_offsets): Likewise.
(layout_nonempty_base_or_field): Reflect changes in RLI format
and call byte_position.
(layout_empty_base): Convert offset to ssizetype.
(build_base_field): use rli_size_unit_so_far.
(dfs_propagate_binfo_offsets): Do computation in proper type.
(layout_virtual_bases): Pass ssizetype to propagate_binfo_offsets.
(layout_class_type): Reflect changes in RLI names and fields.
(finish_struct_1): Set DECL_FIELD_OFFSET.
* cp/dump.c (dequeue_and_dump): Call bit_position.
* cp/expr.c (cplus_expand_constant): Use byte_position.
* cp/rtti.c (expand_class_desc): Use bitsize_one_node.
* cp/typeck.c (build_component_addr): Use byte_position and don't
special case for zero offset.
* f/com.c (ffecom_tree_canonize_ptr_): Use bitsize_zero_node.
(ffecom_tree_canonize_ref_): Likewise.
* java/class.c (make_field_value): Use byte_position.
* java/expr.c (JAVA_ARRAY_LENGTH_OFFSET): Use byte_position.
(java_array_data_offset): Likewise.
* java/java-tree.h (MAYBE_CREATE_TYPE_TYPE_LANG_SPECIFIC): Add case to
bzero call.
From-SVN: r32742
2000-03-25 19:34:13 +01:00
|
|
|
|
/* ... then ignore insns introduced by reload; they aren't
|
|
|
|
|
useful and can cause results in reload_as_needed to be
|
|
|
|
|
different from what they were when calculating the need for
|
|
|
|
|
spills. If we notice an input-reload insn here, we will
|
|
|
|
|
reject it below, but it might hide a usable equivalent.
|
|
|
|
|
That makes bad code. It may even abort: perhaps no reg was
|
|
|
|
|
spilled for this insn because it was assumed we would find
|
|
|
|
|
that equivalent. */
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|| INSN_UID (p) < reload_first_uid))
|
|
|
|
|
{
|
1992-04-04 23:43:53 +02:00
|
|
|
|
rtx tem;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
pat = single_set (p);
|
* Rework fields used to describe positions of bitfields and
modify sizes to be unsigned and use HOST_WIDE_INT.
* alias.c (reg_known_value_size): Now unsigned.
* c-typeck.c (build_unary_op, case ADDR_EXPR): Use byte_position.
(really_start_incremental_init): Use bitsize_zero_node.
(push_init_level, pop_init_level, output_init_element): Likewise.
Use bitsize_unit_node and bitsize_one_node.
(output_pending_init_elements, process_init_element): Likewise.
* combine.c (combine_max_regno, reg_sign_bit_copies): Now unsigned.
(make_extraction): Position and length HOST_WIDE_INT and unsigned
HOST_WIDE_INT, respectively.
(get_pos_from_mask): Passed in value is unsigned HOST_WIDE_INT.
(num_sign_bit_copies): Returns unsigned.
BITWIDTH now unsigned; rework arithmetic.
Remove recursive call from arg to MAX.
(combine_instructions, init_reg_last_arrays): NREGS now unsigned.
(setup_incoming_promotions, can_combine_p, try_combine, simplify_set):
REGNO now unsigned.
(set_nonzero_bit_and_sign_copies): NUM now unsigned.
(find_split_point, expand_compound_operation, make_extraction): LEN
now unsigned HOST_WIDE_INT, POS now HOST_WIDE_INT.
(make_field_assignment): Likewise.
(combine_simplify_rtx): Add cast.
(expand_compound_operation): MODEWIDTH now unsigned; rework arithmetic.
(force_to_mode): WIDTH now unsigned; add cast.
(if_then_else_cond): SIZE now unsigned.
(nonzero_bits): MODE_WIDTH, RESULT_WIDTH, and WIDTH now unsigned.
(extended_count): Now returns unsigned.
(simplify_shift_const): COUNT unsigned; arg is now INPUT_COUNT.
Add SIGNED_COUNT variable; MODE_WORDS and FIRST_COUNT now unsigned.
(simplify_comparison): MODE_WIDTH now unsigned.
(update_table_tick): REGNO and ENDREGNO now unsigned; new var R.
(mark_used_regs_combine): Likewise; rework arithmetic.
(record_value_for_reg): REGNO, ENDREGNO, and I now unsigned.
(record_dead_and_set_regs, reg_dead_at_p, distribute_notes): Likewise.
(record_promoted_value): REGNO now unsigned.
(get_last_value_validate): REGNO, ENDREGNO, and J now unsigned.
(get_last_value): REGNO now unsigned.
(use_crosses_set_p): REGNO and ENDREGNO now unsigned.
(reg_dead_regno, reg_dead_endregno): Now unsigned.
(remove_death): Arg REGNO now unsigned.
(move_deaths): REGNO, DEADREGNO, DEADEND, OUREND, and I now unsigned.
(reg_bitfield_target_p): REGNO, REGNO, ENDREGNO, and ENDTREGNO
now unsigned.
* convert.c (convert_to_integer): INPREC and OUTPREC now unsigned.
* cse.c (struct qty_table_elem): FIRST_REG and LAST_REG now unsigned.
(struct cse_reg_info): REGNO now unsigned.
(cached_regno): Now unsigned.
(REGNO_QTY_VALID_P): Add cast.
(make_new_qty, make_regs_eqv, delete_reg_eqiv): Regno args unsigned.
(remove_invalid_regs): Likewise.
(remove_invalid_subreg_refs): Likewise; arg WORD also unsigned
as are variables END and I.
(get_cse_reg_info, insert): Likewise.
(mention_regs, invalidate_for_call): REGNO, ENDREGNO, and I unsigned.
(canon_hash): Likewise.
(insert_regs, lookup_for_remove): REGNO now unsigned.
(invalidate): REGNO, ENDREGNO, TREGNO, and TENDREGNO now unsigned.
New variable RN.
* dbxout.c (dbxout_parms, dbxout_reg_parms): Don't check for REGNO < 0.
* dwarf2out.c (dwarf2ou_frame_debug_expr): Remove cast.
* emit-rtl.c (subreg_realpart_p): Add cast.
(operand_subword): Arg I is now unsigned as is var PARTWORDS.
(operand_subword_force): Arg I is now unsigned.
* except.c (eh_regs): Variable I is now unsigned.
* explow.c (hard_function_value): BYTES is unsigned HOST_WIDE_INT.
* expmed.c (store_fixed_bit_field): Position is HOST_WIDE_INT;
length is unsigned HOST_WIDE_INT; likewise for internal variables.
(store_split_bit_field, extract_fixed_bit_field): Likewise.
(extract_split_bit_field, store_bit_field, extract_bit_field):
Likewise.
* expr.c (store_constructor_fields, store_constructor, store_field):
Positions are HOST_WIDE_INT and lengths are unsigned HOST_WIDE_INT.
(expand_assignment, expand_expr, expand_expr_unaligned): Likewise.
(do_jump): Likewise.
(move_by_pieces, move_by_pieces_ninsns, clear_by_pieces):
MAX_SIZE is now unsigned.
(emit_group_load): BYTEPOS is HOST_WIDE_INT; BYTELEN is unsigned.
(emit_group_store): Likewise.
(emit_move_insn): I now unsigned.
(store_constructor): Use host_integerp, tree_low_cst, and
bitsize_unit_node.
(get_inner_reference): Return bitpos and bitsize as HOST_WIDE_INT.
Rework all calculations to use trees and new fields.
* expr.h (promoted_input_arg): Regno now unsigned.
(store_bit_field, extract_bit_field): Adjust types of pos and size.
(mark_seen_cases): Arg is HOST_WIDE_INT.
* flow.c (verify_wide_reg_1): REGNO now unsigned.
* fold-const.c (decode_field_reference): Size and pos HOST_WIDE_INT;
precisions and alignments are unsigned.
(optimize_bit_field_compare, fold_truthop): Likewise.
(int_const_binop): Adjust threshold for size_int_type_wide call.
(fold_convert): Likewise.
(size_int_type_wide): Make table larger and fix thinko that only
had half of table used.
(all_ones_mask_p, fold): Precisions are unsigned.
* function.c (put_reg_info_stack): REGNO is unsigned.
(instantiate_decl): Size is HOST_WIDE_INT.
(instantiate_virtual_regs): I is unsigned.
(assign_parms): REGNO, REGNOI, and REGNOR are unsigned.
(promoted_input_arg): REGNO is unsigned.
* function.h (struct function): x_max_parm_reg is now unsigned.
* gcse.c (max_gcse_regno): Now unsigned.
(struct null_pointer_info): min_reg and max_reg now unsigned.
(lookup_set, next_set): REGNO arg now unsigned.
(compute_hash_table): REGNO and I now unsigned.
(handle_avail_expr): regnum_for_replacing now unsigned.
(cprop_insn): REGNO now unsigned.
(delete_null_pointer_checks_1): BLOCK_REG now pointer to unsigned.
* ggc-common.c (ggc_mark_tree_children, case FIELD_DECL): New case.
* global.c (set_preference): SRC_REGNO, DEST_REGNO, and I now unsigned.
* hard-reg-set.h (reg_class_size): Now unsigned.
* integrate.c (mark_stores): LAST_REG and I now unsigned; new UREGNO.
* jump.c (mark_modified_reg): I now unsigned; add cast.
(rtx_equal_for_thread_p): Add cast.
* loop.c (max_reg_before_loop): Now unsigned.
(struct_movable): REGNO now unsigned.
(try_copy_prop): REGNO arg unsigned.
(regs_match_p): XN and YN now unsigned.
(consec_sets_invariant_p, maybe_eliminate_biv): REGNO now unsigned.
(strength_reduce): Likewise; NREGS also unsigned.
(first_increment_giv, last_increment_giv unsigned): Now unsigned.
* loop.h (struct iv_class): REGNO now unsigned.
(max_reg_before_loop, first_increment_giv, last_increment_giv):
Now unsigned.
* machmode.h (mode_size, mode_unit_size): Now unsigned.
(mode_for_size, smallest_mode_for_size): Pass size as unsigned.
* optabs.c (expand_binop): I and NWORDS now unsigned.
(expand_unop): I now unsigned.
* print-tree.c (print_node): Don't print DECL_FIELD_BITPOS, but do
print DECL_FIELD_OFFSET and DECL_FIELD_BIT_OFFSET.
* real.c (significand_size): Now returns unsigned.
* real.h (significand_size): Likewise.
* regclass.c (reg_class_size): Now unsigned.
(choose_hard_reg_mode): Both operands now unsigned.
(record_reg_classes): REGNO and NR now unsigned.
(reg_scan): NREGS now unsigned.
(reg_scan_update): old_max_regno now unsigned.
(reg_scan_mark_refs): Arg MIN_REGNO and var REGNO now unsigned.
* reload.c (find_valid_class): BEST_SIZE now unsigned.
(find_dummy_reload): REGNO, NWORDS, and I now unsigned.
(hard_reg_set_here_p): Args BEG_REGNO and END_REGNO now unsigned.
Likewise for variable R.
(refers_to_regno_for_reload_p): Args REGNO and END_REGNO now unsigned,
as are variables INNER_REGNO and INNER_ENDREGNO; add new variable R.
(find_equiv_reg): Add casts.
(regno_clobbered_p): Arg REGNO now unsigned.
* reload.h (struct reload): NREGS now unsigned.
(refers_to_regno_for_reload_p): Regno args are unsigned.
(regno_clobbered_p): Likewise.
* reload1.c (reg_max_ref_width, spill_stack_slot_width): Now unsigned.
(compute_use_by_pseudos): REGNO now unsigned.
(find_reg): I and J now unsigned, new variable K, and change loop
variables accordingly; THIS_NREGS now unsigned.
(alter_reg): INHERENT_SIZE and TOTAL_SIZE now unsigned.
(spill_hard_reg): REGNO arg now unsigned; add casts.
(forget_old_reloads_1): REGNO, NR, and I now unsigned.
(mark_reload_reg_in_use): Arg REGNO and vars NREGS and I now unsigned.
(clear_reload_reg_in_use): Arg REGNO and vars NREGS, START_REGNO,
END_REGNO, CONFLICT_START, and CONFLICT_END now unsigned.
(reload_reg_free_p, reload_reg_reaches_end_p): Arg REGNO now unsigned.
(choose_reload_regs): MAX_GROUP_SIZE now unsigned.
(emit_reload_insns): REGNO now unsigned.
(reload_cse_move2add): Add cast.
(move2add_note_store): REGNO and I now unsigned; new variable ENDREGNO
and rework loop.
* resource.c (mark_referenced_resources, mark_set_resources): New
variable R; REGNO and LAST_REGNO now unsigned.
(mark_target_live_regs): J and REGNO now unsigned.
* rtl.c (mode_size, mode_unit_size): Now unsigned.
* rtl.h (union rtunion_def): New field rtuint.
(XCUINT): New macro.
(ADDRESSOF_REGNO, REGNO, SUBREG_WORD): New XCUINT.
(operand_subword, operand_subword_force): Word number is unsigned.
(choose_hard_reg_mode): Operands are unsigned.
(refers_to-regno_p, dead_or_set_regno_p): Regno arg is unsigned.
(find_regno_note, find_regno_fusage, replace_regs): Likewise.
(regno_use_in, combine_instructions, remove_death): Likewise.
(reg_scan, reg_scan_update): Likewise.
(extended_count): Return is unsigned.
* rtlanal.c (refers_to_regno_p): Args REGNO and ENDREGNO and vars I,
INNER_REGNO, and INNER_ENDREGNO now unsigned; new variable X_REGNO.
(reg_overlap_mentioned_p): REGNO and ENDREGNO now unsigned.
(reg_set_last_first_regno, reg_set_last_last_regno): Now unsigned.
(reg_reg_last_1): FIRS and LAST now unsigned.
(dead_or_set_p): REGNO, LAST_REGNO, and I now unsigned.
(dead_or_set_regno_p): Arg TEST_REGNO and vars REGNO and ENDREGNO
now unsigned.
(find_regno_note, regno_use_in): Arg REGNO now unsigned.
(find_regno_fusage): Likewise; also var REGNOTE now unsigned.
(find_reg_fusage): Variables REGNO, END_REGNO, and I now unsigned.
(replace_regs): Arg NREGS now unsigned.
* sdbout.c (sdbout_parms, sdbout_reg_parms): Don't check REGNO < 0.
* simplify-rtx.c (simplify_unary_operation): WIDTH now unsigned.
(simplify_binary_operation): Likewise.
(cselib_invalidate_regno): Arg REGNO and variables ENDREGNO, I, and
THIS_LAST now unsigned.
(cselib_record_set): Add cast.
* ssa.c (ssa_max_reg_num): Now unsigned.
(rename_block): REGNO now unsigned.
* stmt.c (expand_return): Bit positions unsigned HOST_WIDE_INT;
sizes now unsigned.
(all_cases_count): Just return -1 not -2.
COUNT, MINVAL, and LASTVAL now HOST_WIDE_INT.
Rework tests to use trees whenever possible.
Use host_integerp and tree_low_cst.
(mark_seen_cases): COUNT arg now HOST_WIDE_INT;
Likewise variable NEXT_NODE_OFFSET; XLO now unsigned.
(check_for_full_enumeration_handing): BYTES_NEEDED, I to HOST_WIDE_INT.
* stor-layout.c (mode_for_size): SIZE arg now unsigned.
(smallest_mode_for_size): Likewise.
(layout_decl): Simplify handing of a specified DECL_SIZE_UNIT.
KNOWN_ALIGN is now an alignment, so simplify code.
Don't turn off DECL_BIT_FIELD if field is BLKmode, but not type.
(start_record_layout): Renamed from new_record_layout_info.
Update to new fields.
(debug_rli, normalize_rli, rli_size_unit_so_far, rli_size_so_far):
New functions.
(place_union_field): Renamed from layout_union_field.
Update to use new fields in rli.
(place_field): Renamed from layout_field.
Major rewrite to use new fields in rli; pass alignment to layout_decl.
(finalize_record_size): Rework to use new fields in rli and handle
union.
(compute_record_mode): Rework to simplify and to use new DECL fields.
(finalize_type_size): Make rounding more consistent.
(finish_union_layout): Deleted.
(layout_type, case VOID_TYPE): Don't set TYPE_SIZE_UNIT either.
(layout_type, case RECORD_TYPE): Call new function names.
(initialize_sizetypes): Set TYPE_IS_SIZETYPE.
(set_sizetype): Set TYPE_IS_SIZETYPE earlier.
(get_best_mode): UNIT is now unsigned; remove casts.
* tree.c (bit_position): Compute from new fields.
(byte_position, int_byte_position): New functions.
(print_type_hash_statistics): Cast to remove warning.
(build_range_type): Use host_integerp and tree_low_cst to try to hash.
(build_index_type): Likewise; make subtype of sizetype.
(build_index_2_type): Pass sizetype to build_range_type.
(build_common_tree_nodes): Use size_int and bitsize_int to
initialize nodes; add bitsize_{zero,one,unit}_node.
* tree.h (DECL_FIELD_CONTEXT): Use FIELD_DECL_CHECK.
(DECL_BIT_FIELD_TYPE, DECL_QUALIFIER, DECL_FCONTEXT): Likewise.
(DECL_PACKED, DECL_BIT_FIELD): Likewise.
(DECL_FIELD_BITPOS): Deleted.
(DECL_FIELD_OFFSET, DECL_FIELD_BIT_OFFSET): New fields.
(DECL_RESULT, DECL_SAVED_INSNS): Use FUNCTION_DECL_CHECK.
(DECL_FRAME_SIZE, DECL_FUNCTION_CODE, DECL_NO_STATIC_CHAIN): Likewise.
(DECL_INLINE, DECL_BUILT_IN_NONANSI, DECL_IS_MALLOC): Likewise.
(DECL_BUILT_IN_CLASS, DECL_STATIC_CONSTRUCTOR): Likewise.
(DECL_STATIC_DESTRUCTOR, DECL_NO_CHECK_MEMORY_USAGE): Likewise.
(DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT, DECL_NO_LIMIT_STACK) Likewise.
(DECL_ORIGINAL_TYPE, TYPE_DECL_SUPPRESS_DEBUG): Use TYPE_DECL_CHECK.
(DECL_ARG_TYPE_AS_WRITEN, DECL_ARG_TYPE): Use PARM_DECL_CHECK.
(DECL_INCOMING_RTL, DECL_TRANSPARENT_UNION): Likewise.
(DECL_ALIGN): Adjust to new field in union.
(DECL_OFFSET_ALIGN): New field.
(DECL_ERROR_ISSUED, DECL_TOO_LATE): Use LABEL_DECL_CHECK.
(DECL_IN_TEXT_SECTION): Use VAR_DECL_CHECK.
(union tree_decl): Add struct for both aligns.
(enum tree_index): Add TI_BITSIZE_{ZERO,ONE,UNIT}.
(bitsize_zero_node, bitsize_one_node, bitsize_unit_node): Added.
(struct record_layout_info): Rework fields to have offset
alignment and byte and bit position.
(start_record_layout, place_field): Renamed from old names.
(rli_size_so_far, rli_size_unit_so_far, normalize_rli): New decls.
(byte_position, int_byte_position): Likewise.
(get_inner_reference): Change types of position and length.
* unroll.c (unroll_loop): New variable R; use for some loops.
MAX_LOCAL_REGNUM and MAXREGNUM now unsigned.
(calculate_giv_inc): Arg REGNO now unsigned.
(copy_loop_body): REGNO and SRC_REGNO now unsigned.
* varasm.c (assemble_variable): Clean up handling of size using
host_integerp and tree_low_cst.
(decode_addr_const): Use byte, not bit, position.
(output_constructor): bitpos and offsets are HOST_WIDE_INT;
use tree_low_cst and int_bit_position.
* objc/objc-act.c (build_ivar_list_initializer): Use byte_position.
* ch/actions.c (check_missing_cases): BYTES_NEEDED is HOST_WIDE_INT.
* ch/typeck.c (expand_constant_to_buffer): Use int_byte_position.
(extract_constant_from_buffer): Likewise.
* cp/class.c (build_vbase_pointer_fields): layout_field now
place_field.
(get_vfield_offset): Use byte_position.
(set_rtti_entry): Set OFFSET to ssizetype zero.
(get_binfo_offset_as_int): Deleted.
(dfs_record_base_offsets): Use tree_low_cst.
(dfs_search_base_offsets): Likewise.
(layout_nonempty_base_or_field): Reflect changes in RLI format
and call byte_position.
(layout_empty_base): Convert offset to ssizetype.
(build_base_field): use rli_size_unit_so_far.
(dfs_propagate_binfo_offsets): Do computation in proper type.
(layout_virtual_bases): Pass ssizetype to propagate_binfo_offsets.
(layout_class_type): Reflect changes in RLI names and fields.
(finish_struct_1): Set DECL_FIELD_OFFSET.
* cp/dump.c (dequeue_and_dump): Call bit_position.
* cp/expr.c (cplus_expand_constant): Use byte_position.
* cp/rtti.c (expand_class_desc): Use bitsize_one_node.
* cp/typeck.c (build_component_addr): Use byte_position and don't
special case for zero offset.
* f/com.c (ffecom_tree_canonize_ptr_): Use bitsize_zero_node.
(ffecom_tree_canonize_ref_): Likewise.
* java/class.c (make_field_value): Use byte_position.
* java/expr.c (JAVA_ARRAY_LENGTH_OFFSET): Use byte_position.
(java_array_data_offset): Likewise.
* java/java-tree.h (MAYBE_CREATE_TYPE_TYPE_LANG_SPECIFIC): Add case to
bzero call.
From-SVN: r32742
2000-03-25 19:34:13 +01:00
|
|
|
|
|
1992-02-28 11:23:25 +01:00
|
|
|
|
/* First check for something that sets some reg equal to GOAL. */
|
|
|
|
|
if (pat != 0
|
|
|
|
|
&& ((regno >= 0
|
|
|
|
|
&& true_regnum (SET_SRC (pat)) == regno
|
|
|
|
|
&& (valueno = true_regnum (valtry = SET_DEST (pat))) >= 0)
|
|
|
|
|
||
|
|
|
|
|
(regno >= 0
|
|
|
|
|
&& true_regnum (SET_DEST (pat)) == regno
|
|
|
|
|
&& (valueno = true_regnum (valtry = SET_SRC (pat))) >= 0)
|
|
|
|
|
||
|
|
|
|
|
(goal_const && rtx_equal_p (SET_SRC (pat), goal)
|
1998-07-07 02:19:56 +02:00
|
|
|
|
/* When looking for stack pointer + const,
|
|
|
|
|
make sure we don't use a stack adjust. */
|
|
|
|
|
&& !reg_overlap_mentioned_for_reload_p (SET_DEST (pat), goal)
|
1992-02-28 11:23:25 +01:00
|
|
|
|
&& (valueno = true_regnum (valtry = SET_DEST (pat))) >= 0)
|
|
|
|
|
|| (goal_mem
|
|
|
|
|
&& (valueno = true_regnum (valtry = SET_DEST (pat))) >= 0
|
|
|
|
|
&& rtx_renumbered_equal_p (goal, SET_SRC (pat)))
|
|
|
|
|
|| (goal_mem
|
|
|
|
|
&& (valueno = true_regnum (valtry = SET_SRC (pat))) >= 0
|
1992-04-04 23:43:53 +02:00
|
|
|
|
&& rtx_renumbered_equal_p (goal, SET_DEST (pat)))
|
|
|
|
|
/* If we are looking for a constant,
|
|
|
|
|
and something equivalent to that constant was copied
|
|
|
|
|
into a reg, we can use that reg. */
|
2000-05-20 00:27:28 +02:00
|
|
|
|
|| (goal_const && REG_NOTES (p) != 0
|
|
|
|
|
&& (tem = find_reg_note (p, REG_EQUIV, NULL_RTX))
|
|
|
|
|
&& ((rtx_equal_p (XEXP (tem, 0), goal)
|
|
|
|
|
&& (valueno
|
|
|
|
|
= true_regnum (valtry = SET_DEST (pat))) >= 0)
|
|
|
|
|
|| (GET_CODE (SET_DEST (pat)) == REG
|
|
|
|
|
&& GET_CODE (XEXP (tem, 0)) == CONST_DOUBLE
|
|
|
|
|
&& (GET_MODE_CLASS (GET_MODE (XEXP (tem, 0)))
|
|
|
|
|
== MODE_FLOAT)
|
|
|
|
|
&& GET_CODE (goal) == CONST_INT
|
|
|
|
|
&& 0 != (goaltry
|
|
|
|
|
= operand_subword (XEXP (tem, 0), 0, 0,
|
1993-05-07 00:18:06 +02:00
|
|
|
|
VOIDmode))
|
2000-05-20 00:27:28 +02:00
|
|
|
|
&& rtx_equal_p (goal, goaltry)
|
|
|
|
|
&& (valtry
|
|
|
|
|
= operand_subword (SET_DEST (pat), 0, 0,
|
|
|
|
|
VOIDmode))
|
|
|
|
|
&& (valueno = true_regnum (valtry)) >= 0)))
|
1992-07-06 22:11:22 +02:00
|
|
|
|
|| (goal_const && (tem = find_reg_note (p, REG_EQUIV,
|
|
|
|
|
NULL_RTX))
|
1992-04-04 23:43:53 +02:00
|
|
|
|
&& GET_CODE (SET_DEST (pat)) == REG
|
|
|
|
|
&& GET_CODE (XEXP (tem, 0)) == CONST_DOUBLE
|
2000-05-20 00:27:28 +02:00
|
|
|
|
&& (GET_MODE_CLASS (GET_MODE (XEXP (tem, 0)))
|
|
|
|
|
== MODE_FLOAT)
|
1992-04-04 23:43:53 +02:00
|
|
|
|
&& GET_CODE (goal) == CONST_INT
|
1993-05-07 00:18:06 +02:00
|
|
|
|
&& 0 != (goaltry = operand_subword (XEXP (tem, 0), 1, 0,
|
|
|
|
|
VOIDmode))
|
|
|
|
|
&& rtx_equal_p (goal, goaltry)
|
1992-04-04 23:43:53 +02:00
|
|
|
|
&& (valtry
|
|
|
|
|
= operand_subword (SET_DEST (pat), 1, 0, VOIDmode))
|
1992-05-10 03:30:56 +02:00
|
|
|
|
&& (valueno = true_regnum (valtry)) >= 0)))
|
2000-11-02 20:22:04 +01:00
|
|
|
|
{
|
|
|
|
|
if (other >= 0)
|
|
|
|
|
{
|
|
|
|
|
if (valueno != other)
|
|
|
|
|
continue;
|
|
|
|
|
}
|
|
|
|
|
else if ((unsigned) valueno >= FIRST_PSEUDO_REGISTER)
|
|
|
|
|
continue;
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
int i;
|
|
|
|
|
|
|
|
|
|
for (i = HARD_REGNO_NREGS (valueno, mode) - 1; i >= 0; i--)
|
|
|
|
|
if (! TEST_HARD_REG_BIT (reg_class_contents[(int) class],
|
|
|
|
|
valueno + i))
|
|
|
|
|
break;
|
|
|
|
|
if (i >= 0)
|
|
|
|
|
continue;
|
|
|
|
|
}
|
|
|
|
|
value = valtry;
|
|
|
|
|
where = p;
|
|
|
|
|
break;
|
|
|
|
|
}
|
1992-02-28 11:23:25 +01:00
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* We found a previous insn copying GOAL into a suitable other reg VALUE
|
|
|
|
|
(or copying VALUE into GOAL, if GOAL is also a register).
|
|
|
|
|
Now verify that VALUE is really valid. */
|
|
|
|
|
|
|
|
|
|
/* VALUENO is the register number of VALUE; a hard register. */
|
|
|
|
|
|
|
|
|
|
/* Don't try to re-use something that is killed in this insn. We want
|
|
|
|
|
to be able to trust REG_UNUSED notes. */
|
2000-05-20 00:27:28 +02:00
|
|
|
|
if (REG_NOTES (where) != 0 && find_reg_note (where, REG_UNUSED, value))
|
1992-02-28 11:23:25 +01:00
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
|
|
/* If we propose to get the value from the stack pointer or if GOAL is
|
|
|
|
|
a MEM based on the stack pointer, we need a stable SP. */
|
1996-06-08 19:43:59 +02:00
|
|
|
|
if (valueno == STACK_POINTER_REGNUM || regno == STACK_POINTER_REGNUM
|
1992-05-12 04:51:59 +02:00
|
|
|
|
|| (goal_mem && reg_overlap_mentioned_for_reload_p (stack_pointer_rtx,
|
|
|
|
|
goal)))
|
1992-02-28 11:23:25 +01:00
|
|
|
|
need_stable_sp = 1;
|
|
|
|
|
|
|
|
|
|
/* Reject VALUE if the copy-insn moved the wrong sort of datum. */
|
|
|
|
|
if (GET_MODE (value) != mode)
|
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
|
|
/* Reject VALUE if it was loaded from GOAL
|
|
|
|
|
and is also a register that appears in the address of GOAL. */
|
|
|
|
|
|
1996-01-15 13:22:46 +01:00
|
|
|
|
if (goal_mem && value == SET_DEST (single_set (where))
|
1992-05-12 04:51:59 +02:00
|
|
|
|
&& refers_to_regno_for_reload_p (valueno,
|
|
|
|
|
(valueno
|
|
|
|
|
+ HARD_REGNO_NREGS (valueno, mode)),
|
2002-01-10 01:56:56 +01:00
|
|
|
|
goal, (rtx*) 0))
|
1992-02-28 11:23:25 +01:00
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
|
|
/* Reject registers that overlap GOAL. */
|
|
|
|
|
|
|
|
|
|
if (!goal_mem && !goal_const
|
* Rework fields used to describe positions of bitfields and
modify sizes to be unsigned and use HOST_WIDE_INT.
* alias.c (reg_known_value_size): Now unsigned.
* c-typeck.c (build_unary_op, case ADDR_EXPR): Use byte_position.
(really_start_incremental_init): Use bitsize_zero_node.
(push_init_level, pop_init_level, output_init_element): Likewise.
Use bitsize_unit_node and bitsize_one_node.
(output_pending_init_elements, process_init_element): Likewise.
* combine.c (combine_max_regno, reg_sign_bit_copies): Now unsigned.
(make_extraction): Position and length HOST_WIDE_INT and unsigned
HOST_WIDE_INT, respectively.
(get_pos_from_mask): Passed in value is unsigned HOST_WIDE_INT.
(num_sign_bit_copies): Returns unsigned.
BITWIDTH now unsigned; rework arithmetic.
Remove recursive call from arg to MAX.
(combine_instructions, init_reg_last_arrays): NREGS now unsigned.
(setup_incoming_promotions, can_combine_p, try_combine, simplify_set):
REGNO now unsigned.
(set_nonzero_bit_and_sign_copies): NUM now unsigned.
(find_split_point, expand_compound_operation, make_extraction): LEN
now unsigned HOST_WIDE_INT, POS now HOST_WIDE_INT.
(make_field_assignment): Likewise.
(combine_simplify_rtx): Add cast.
(expand_compound_operation): MODEWIDTH now unsigned; rework arithmetic.
(force_to_mode): WIDTH now unsigned; add cast.
(if_then_else_cond): SIZE now unsigned.
(nonzero_bits): MODE_WIDTH, RESULT_WIDTH, and WIDTH now unsigned.
(extended_count): Now returns unsigned.
(simplify_shift_const): COUNT unsigned; arg is now INPUT_COUNT.
Add SIGNED_COUNT variable; MODE_WORDS and FIRST_COUNT now unsigned.
(simplify_comparison): MODE_WIDTH now unsigned.
(update_table_tick): REGNO and ENDREGNO now unsigned; new var R.
(mark_used_regs_combine): Likewise; rework arithmetic.
(record_value_for_reg): REGNO, ENDREGNO, and I now unsigned.
(record_dead_and_set_regs, reg_dead_at_p, distribute_notes): Likewise.
(record_promoted_value): REGNO now unsigned.
(get_last_value_validate): REGNO, ENDREGNO, and J now unsigned.
(get_last_value): REGNO now unsigned.
(use_crosses_set_p): REGNO and ENDREGNO now unsigned.
(reg_dead_regno, reg_dead_endregno): Now unsigned.
(remove_death): Arg REGNO now unsigned.
(move_deaths): REGNO, DEADREGNO, DEADEND, OUREND, and I now unsigned.
(reg_bitfield_target_p): REGNO, REGNO, ENDREGNO, and ENDTREGNO
now unsigned.
* convert.c (convert_to_integer): INPREC and OUTPREC now unsigned.
* cse.c (struct qty_table_elem): FIRST_REG and LAST_REG now unsigned.
(struct cse_reg_info): REGNO now unsigned.
(cached_regno): Now unsigned.
(REGNO_QTY_VALID_P): Add cast.
(make_new_qty, make_regs_eqv, delete_reg_eqiv): Regno args unsigned.
(remove_invalid_regs): Likewise.
(remove_invalid_subreg_refs): Likewise; arg WORD also unsigned
as are variables END and I.
(get_cse_reg_info, insert): Likewise.
(mention_regs, invalidate_for_call): REGNO, ENDREGNO, and I unsigned.
(canon_hash): Likewise.
(insert_regs, lookup_for_remove): REGNO now unsigned.
(invalidate): REGNO, ENDREGNO, TREGNO, and TENDREGNO now unsigned.
New variable RN.
* dbxout.c (dbxout_parms, dbxout_reg_parms): Don't check for REGNO < 0.
* dwarf2out.c (dwarf2ou_frame_debug_expr): Remove cast.
* emit-rtl.c (subreg_realpart_p): Add cast.
(operand_subword): Arg I is now unsigned as is var PARTWORDS.
(operand_subword_force): Arg I is now unsigned.
* except.c (eh_regs): Variable I is now unsigned.
* explow.c (hard_function_value): BYTES is unsigned HOST_WIDE_INT.
* expmed.c (store_fixed_bit_field): Position is HOST_WIDE_INT;
length is unsigned HOST_WIDE_INT; likewise for internal variables.
(store_split_bit_field, extract_fixed_bit_field): Likewise.
(extract_split_bit_field, store_bit_field, extract_bit_field):
Likewise.
* expr.c (store_constructor_fields, store_constructor, store_field):
Positions are HOST_WIDE_INT and lengths are unsigned HOST_WIDE_INT.
(expand_assignment, expand_expr, expand_expr_unaligned): Likewise.
(do_jump): Likewise.
(move_by_pieces, move_by_pieces_ninsns, clear_by_pieces):
MAX_SIZE is now unsigned.
(emit_group_load): BYTEPOS is HOST_WIDE_INT; BYTELEN is unsigned.
(emit_group_store): Likewise.
(emit_move_insn): I now unsigned.
(store_constructor): Use host_integerp, tree_low_cst, and
bitsize_unit_node.
(get_inner_reference): Return bitpos and bitsize as HOST_WIDE_INT.
Rework all calculations to use trees and new fields.
* expr.h (promoted_input_arg): Regno now unsigned.
(store_bit_field, extract_bit_field): Adjust types of pos and size.
(mark_seen_cases): Arg is HOST_WIDE_INT.
* flow.c (verify_wide_reg_1): REGNO now unsigned.
* fold-const.c (decode_field_reference): Size and pos HOST_WIDE_INT;
precisions and alignments are unsigned.
(optimize_bit_field_compare, fold_truthop): Likewise.
(int_const_binop): Adjust threshold for size_int_type_wide call.
(fold_convert): Likewise.
(size_int_type_wide): Make table larger and fix thinko that only
had half of table used.
(all_ones_mask_p, fold): Precisions are unsigned.
* function.c (put_reg_info_stack): REGNO is unsigned.
(instantiate_decl): Size is HOST_WIDE_INT.
(instantiate_virtual_regs): I is unsigned.
(assign_parms): REGNO, REGNOI, and REGNOR are unsigned.
(promoted_input_arg): REGNO is unsigned.
* function.h (struct function): x_max_parm_reg is now unsigned.
* gcse.c (max_gcse_regno): Now unsigned.
(struct null_pointer_info): min_reg and max_reg now unsigned.
(lookup_set, next_set): REGNO arg now unsigned.
(compute_hash_table): REGNO and I now unsigned.
(handle_avail_expr): regnum_for_replacing now unsigned.
(cprop_insn): REGNO now unsigned.
(delete_null_pointer_checks_1): BLOCK_REG now pointer to unsigned.
* ggc-common.c (ggc_mark_tree_children, case FIELD_DECL): New case.
* global.c (set_preference): SRC_REGNO, DEST_REGNO, and I now unsigned.
* hard-reg-set.h (reg_class_size): Now unsigned.
* integrate.c (mark_stores): LAST_REG and I now unsigned; new UREGNO.
* jump.c (mark_modified_reg): I now unsigned; add cast.
(rtx_equal_for_thread_p): Add cast.
* loop.c (max_reg_before_loop): Now unsigned.
(struct_movable): REGNO now unsigned.
(try_copy_prop): REGNO arg unsigned.
(regs_match_p): XN and YN now unsigned.
(consec_sets_invariant_p, maybe_eliminate_biv): REGNO now unsigned.
(strength_reduce): Likewise; NREGS also unsigned.
(first_increment_giv, last_increment_giv unsigned): Now unsigned.
* loop.h (struct iv_class): REGNO now unsigned.
(max_reg_before_loop, first_increment_giv, last_increment_giv):
Now unsigned.
* machmode.h (mode_size, mode_unit_size): Now unsigned.
(mode_for_size, smallest_mode_for_size): Pass size as unsigned.
* optabs.c (expand_binop): I and NWORDS now unsigned.
(expand_unop): I now unsigned.
* print-tree.c (print_node): Don't print DECL_FIELD_BITPOS, but do
print DECL_FIELD_OFFSET and DECL_FIELD_BIT_OFFSET.
* real.c (significand_size): Now returns unsigned.
* real.h (significand_size): Likewise.
* regclass.c (reg_class_size): Now unsigned.
(choose_hard_reg_mode): Both operands now unsigned.
(record_reg_classes): REGNO and NR now unsigned.
(reg_scan): NREGS now unsigned.
(reg_scan_update): old_max_regno now unsigned.
(reg_scan_mark_refs): Arg MIN_REGNO and var REGNO now unsigned.
* reload.c (find_valid_class): BEST_SIZE now unsigned.
(find_dummy_reload): REGNO, NWORDS, and I now unsigned.
(hard_reg_set_here_p): Args BEG_REGNO and END_REGNO now unsigned.
Likewise for variable R.
(refers_to_regno_for_reload_p): Args REGNO and END_REGNO now unsigned,
as are variables INNER_REGNO and INNER_ENDREGNO; add new variable R.
(find_equiv_reg): Add casts.
(regno_clobbered_p): Arg REGNO now unsigned.
* reload.h (struct reload): NREGS now unsigned.
(refers_to_regno_for_reload_p): Regno args are unsigned.
(regno_clobbered_p): Likewise.
* reload1.c (reg_max_ref_width, spill_stack_slot_width): Now unsigned.
(compute_use_by_pseudos): REGNO now unsigned.
(find_reg): I and J now unsigned, new variable K, and change loop
variables accordingly; THIS_NREGS now unsigned.
(alter_reg): INHERENT_SIZE and TOTAL_SIZE now unsigned.
(spill_hard_reg): REGNO arg now unsigned; add casts.
(forget_old_reloads_1): REGNO, NR, and I now unsigned.
(mark_reload_reg_in_use): Arg REGNO and vars NREGS and I now unsigned.
(clear_reload_reg_in_use): Arg REGNO and vars NREGS, START_REGNO,
END_REGNO, CONFLICT_START, and CONFLICT_END now unsigned.
(reload_reg_free_p, reload_reg_reaches_end_p): Arg REGNO now unsigned.
(choose_reload_regs): MAX_GROUP_SIZE now unsigned.
(emit_reload_insns): REGNO now unsigned.
(reload_cse_move2add): Add cast.
(move2add_note_store): REGNO and I now unsigned; new variable ENDREGNO
and rework loop.
* resource.c (mark_referenced_resources, mark_set_resources): New
variable R; REGNO and LAST_REGNO now unsigned.
(mark_target_live_regs): J and REGNO now unsigned.
* rtl.c (mode_size, mode_unit_size): Now unsigned.
* rtl.h (union rtunion_def): New field rtuint.
(XCUINT): New macro.
(ADDRESSOF_REGNO, REGNO, SUBREG_WORD): New XCUINT.
(operand_subword, operand_subword_force): Word number is unsigned.
(choose_hard_reg_mode): Operands are unsigned.
(refers_to-regno_p, dead_or_set_regno_p): Regno arg is unsigned.
(find_regno_note, find_regno_fusage, replace_regs): Likewise.
(regno_use_in, combine_instructions, remove_death): Likewise.
(reg_scan, reg_scan_update): Likewise.
(extended_count): Return is unsigned.
* rtlanal.c (refers_to_regno_p): Args REGNO and ENDREGNO and vars I,
INNER_REGNO, and INNER_ENDREGNO now unsigned; new variable X_REGNO.
(reg_overlap_mentioned_p): REGNO and ENDREGNO now unsigned.
(reg_set_last_first_regno, reg_set_last_last_regno): Now unsigned.
(reg_reg_last_1): FIRS and LAST now unsigned.
(dead_or_set_p): REGNO, LAST_REGNO, and I now unsigned.
(dead_or_set_regno_p): Arg TEST_REGNO and vars REGNO and ENDREGNO
now unsigned.
(find_regno_note, regno_use_in): Arg REGNO now unsigned.
(find_regno_fusage): Likewise; also var REGNOTE now unsigned.
(find_reg_fusage): Variables REGNO, END_REGNO, and I now unsigned.
(replace_regs): Arg NREGS now unsigned.
* sdbout.c (sdbout_parms, sdbout_reg_parms): Don't check REGNO < 0.
* simplify-rtx.c (simplify_unary_operation): WIDTH now unsigned.
(simplify_binary_operation): Likewise.
(cselib_invalidate_regno): Arg REGNO and variables ENDREGNO, I, and
THIS_LAST now unsigned.
(cselib_record_set): Add cast.
* ssa.c (ssa_max_reg_num): Now unsigned.
(rename_block): REGNO now unsigned.
* stmt.c (expand_return): Bit positions unsigned HOST_WIDE_INT;
sizes now unsigned.
(all_cases_count): Just return -1 not -2.
COUNT, MINVAL, and LASTVAL now HOST_WIDE_INT.
Rework tests to use trees whenever possible.
Use host_integerp and tree_low_cst.
(mark_seen_cases): COUNT arg now HOST_WIDE_INT;
Likewise variable NEXT_NODE_OFFSET; XLO now unsigned.
(check_for_full_enumeration_handing): BYTES_NEEDED, I to HOST_WIDE_INT.
* stor-layout.c (mode_for_size): SIZE arg now unsigned.
(smallest_mode_for_size): Likewise.
(layout_decl): Simplify handing of a specified DECL_SIZE_UNIT.
KNOWN_ALIGN is now an alignment, so simplify code.
Don't turn off DECL_BIT_FIELD if field is BLKmode, but not type.
(start_record_layout): Renamed from new_record_layout_info.
Update to new fields.
(debug_rli, normalize_rli, rli_size_unit_so_far, rli_size_so_far):
New functions.
(place_union_field): Renamed from layout_union_field.
Update to use new fields in rli.
(place_field): Renamed from layout_field.
Major rewrite to use new fields in rli; pass alignment to layout_decl.
(finalize_record_size): Rework to use new fields in rli and handle
union.
(compute_record_mode): Rework to simplify and to use new DECL fields.
(finalize_type_size): Make rounding more consistent.
(finish_union_layout): Deleted.
(layout_type, case VOID_TYPE): Don't set TYPE_SIZE_UNIT either.
(layout_type, case RECORD_TYPE): Call new function names.
(initialize_sizetypes): Set TYPE_IS_SIZETYPE.
(set_sizetype): Set TYPE_IS_SIZETYPE earlier.
(get_best_mode): UNIT is now unsigned; remove casts.
* tree.c (bit_position): Compute from new fields.
(byte_position, int_byte_position): New functions.
(print_type_hash_statistics): Cast to remove warning.
(build_range_type): Use host_integerp and tree_low_cst to try to hash.
(build_index_type): Likewise; make subtype of sizetype.
(build_index_2_type): Pass sizetype to build_range_type.
(build_common_tree_nodes): Use size_int and bitsize_int to
initialize nodes; add bitsize_{zero,one,unit}_node.
* tree.h (DECL_FIELD_CONTEXT): Use FIELD_DECL_CHECK.
(DECL_BIT_FIELD_TYPE, DECL_QUALIFIER, DECL_FCONTEXT): Likewise.
(DECL_PACKED, DECL_BIT_FIELD): Likewise.
(DECL_FIELD_BITPOS): Deleted.
(DECL_FIELD_OFFSET, DECL_FIELD_BIT_OFFSET): New fields.
(DECL_RESULT, DECL_SAVED_INSNS): Use FUNCTION_DECL_CHECK.
(DECL_FRAME_SIZE, DECL_FUNCTION_CODE, DECL_NO_STATIC_CHAIN): Likewise.
(DECL_INLINE, DECL_BUILT_IN_NONANSI, DECL_IS_MALLOC): Likewise.
(DECL_BUILT_IN_CLASS, DECL_STATIC_CONSTRUCTOR): Likewise.
(DECL_STATIC_DESTRUCTOR, DECL_NO_CHECK_MEMORY_USAGE): Likewise.
(DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT, DECL_NO_LIMIT_STACK) Likewise.
(DECL_ORIGINAL_TYPE, TYPE_DECL_SUPPRESS_DEBUG): Use TYPE_DECL_CHECK.
(DECL_ARG_TYPE_AS_WRITEN, DECL_ARG_TYPE): Use PARM_DECL_CHECK.
(DECL_INCOMING_RTL, DECL_TRANSPARENT_UNION): Likewise.
(DECL_ALIGN): Adjust to new field in union.
(DECL_OFFSET_ALIGN): New field.
(DECL_ERROR_ISSUED, DECL_TOO_LATE): Use LABEL_DECL_CHECK.
(DECL_IN_TEXT_SECTION): Use VAR_DECL_CHECK.
(union tree_decl): Add struct for both aligns.
(enum tree_index): Add TI_BITSIZE_{ZERO,ONE,UNIT}.
(bitsize_zero_node, bitsize_one_node, bitsize_unit_node): Added.
(struct record_layout_info): Rework fields to have offset
alignment and byte and bit position.
(start_record_layout, place_field): Renamed from old names.
(rli_size_so_far, rli_size_unit_so_far, normalize_rli): New decls.
(byte_position, int_byte_position): Likewise.
(get_inner_reference): Change types of position and length.
* unroll.c (unroll_loop): New variable R; use for some loops.
MAX_LOCAL_REGNUM and MAXREGNUM now unsigned.
(calculate_giv_inc): Arg REGNO now unsigned.
(copy_loop_body): REGNO and SRC_REGNO now unsigned.
* varasm.c (assemble_variable): Clean up handling of size using
host_integerp and tree_low_cst.
(decode_addr_const): Use byte, not bit, position.
(output_constructor): bitpos and offsets are HOST_WIDE_INT;
use tree_low_cst and int_bit_position.
* objc/objc-act.c (build_ivar_list_initializer): Use byte_position.
* ch/actions.c (check_missing_cases): BYTES_NEEDED is HOST_WIDE_INT.
* ch/typeck.c (expand_constant_to_buffer): Use int_byte_position.
(extract_constant_from_buffer): Likewise.
* cp/class.c (build_vbase_pointer_fields): layout_field now
place_field.
(get_vfield_offset): Use byte_position.
(set_rtti_entry): Set OFFSET to ssizetype zero.
(get_binfo_offset_as_int): Deleted.
(dfs_record_base_offsets): Use tree_low_cst.
(dfs_search_base_offsets): Likewise.
(layout_nonempty_base_or_field): Reflect changes in RLI format
and call byte_position.
(layout_empty_base): Convert offset to ssizetype.
(build_base_field): use rli_size_unit_so_far.
(dfs_propagate_binfo_offsets): Do computation in proper type.
(layout_virtual_bases): Pass ssizetype to propagate_binfo_offsets.
(layout_class_type): Reflect changes in RLI names and fields.
(finish_struct_1): Set DECL_FIELD_OFFSET.
* cp/dump.c (dequeue_and_dump): Call bit_position.
* cp/expr.c (cplus_expand_constant): Use byte_position.
* cp/rtti.c (expand_class_desc): Use bitsize_one_node.
* cp/typeck.c (build_component_addr): Use byte_position and don't
special case for zero offset.
* f/com.c (ffecom_tree_canonize_ptr_): Use bitsize_zero_node.
(ffecom_tree_canonize_ref_): Likewise.
* java/class.c (make_field_value): Use byte_position.
* java/expr.c (JAVA_ARRAY_LENGTH_OFFSET): Use byte_position.
(java_array_data_offset): Likewise.
* java/java-tree.h (MAYBE_CREATE_TYPE_TYPE_LANG_SPECIFIC): Add case to
bzero call.
From-SVN: r32742
2000-03-25 19:34:13 +01:00
|
|
|
|
&& regno + (int) HARD_REGNO_NREGS (regno, mode) > valueno
|
|
|
|
|
&& regno < valueno + (int) HARD_REGNO_NREGS (valueno, mode))
|
1992-02-28 11:23:25 +01:00
|
|
|
|
return 0;
|
|
|
|
|
|
2000-04-24 00:25:25 +02:00
|
|
|
|
nregs = HARD_REGNO_NREGS (regno, mode);
|
|
|
|
|
valuenregs = HARD_REGNO_NREGS (valueno, mode);
|
|
|
|
|
|
1992-02-28 11:23:25 +01:00
|
|
|
|
/* Reject VALUE if it is one of the regs reserved for reloads.
|
|
|
|
|
Reload1 knows how to reuse them anyway, and it would get
|
|
|
|
|
confused if we allocated one without its knowledge.
|
|
|
|
|
(Now that insns introduced by reload are ignored above,
|
|
|
|
|
this case shouldn't happen, but I'm not positive.) */
|
|
|
|
|
|
2000-04-24 00:25:25 +02:00
|
|
|
|
if (reload_reg_p != 0 && reload_reg_p != (short *) (HOST_WIDE_INT) 1)
|
|
|
|
|
{
|
|
|
|
|
int i;
|
|
|
|
|
for (i = 0; i < valuenregs; ++i)
|
|
|
|
|
if (reload_reg_p[valueno + i] >= 0)
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
|
|
|
|
/* Reject VALUE if it is a register being used for an input reload
|
|
|
|
|
even if it is not one of those reserved. */
|
|
|
|
|
|
|
|
|
|
if (reload_reg_p != 0)
|
|
|
|
|
{
|
|
|
|
|
int i;
|
|
|
|
|
for (i = 0; i < n_reloads; i++)
|
1999-09-12 16:54:56 +02:00
|
|
|
|
if (rld[i].reg_rtx != 0 && rld[i].in)
|
1992-02-28 11:23:25 +01:00
|
|
|
|
{
|
1999-09-12 16:54:56 +02:00
|
|
|
|
int regno1 = REGNO (rld[i].reg_rtx);
|
1992-02-28 11:23:25 +01:00
|
|
|
|
int nregs1 = HARD_REGNO_NREGS (regno1,
|
1999-09-12 16:54:56 +02:00
|
|
|
|
GET_MODE (rld[i].reg_rtx));
|
1992-02-28 11:23:25 +01:00
|
|
|
|
if (regno1 < valueno + valuenregs
|
|
|
|
|
&& regno1 + nregs1 > valueno)
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (goal_mem)
|
1993-05-10 07:01:08 +02:00
|
|
|
|
/* We must treat frame pointer as varying here,
|
|
|
|
|
since it can vary--in a nonlocal goto as generated by expand_goto. */
|
|
|
|
|
goal_mem_addr_varies = !CONSTANT_ADDRESS_P (XEXP (goal, 0));
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
|
|
|
|
/* Now verify that the values of GOAL and VALUE remain unaltered
|
|
|
|
|
until INSN is reached. */
|
|
|
|
|
|
|
|
|
|
p = insn;
|
|
|
|
|
while (1)
|
|
|
|
|
{
|
|
|
|
|
p = PREV_INSN (p);
|
|
|
|
|
if (p == where)
|
|
|
|
|
return value;
|
|
|
|
|
|
|
|
|
|
/* Don't trust the conversion past a function call
|
|
|
|
|
if either of the two is in a call-clobbered register, or memory. */
|
2000-04-21 23:00:09 +02:00
|
|
|
|
if (GET_CODE (p) == CALL_INSN)
|
|
|
|
|
{
|
|
|
|
|
int i;
|
2000-08-29 23:14:57 +02:00
|
|
|
|
|
2000-04-21 23:00:09 +02:00
|
|
|
|
if (goal_mem || need_stable_sp)
|
|
|
|
|
return 0;
|
2000-08-29 23:14:57 +02:00
|
|
|
|
|
2000-04-21 23:00:09 +02:00
|
|
|
|
if (regno >= 0 && regno < FIRST_PSEUDO_REGISTER)
|
|
|
|
|
for (i = 0; i < nregs; ++i)
|
|
|
|
|
if (call_used_regs[regno + i])
|
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
|
|
if (valueno >= 0 && valueno < FIRST_PSEUDO_REGISTER)
|
|
|
|
|
for (i = 0; i < valuenregs; ++i)
|
|
|
|
|
if (call_used_regs[valueno + i])
|
|
|
|
|
return 0;
|
1999-09-01 16:30:35 +02:00
|
|
|
|
#ifdef NON_SAVING_SETJMP
|
2001-08-07 22:24:08 +02:00
|
|
|
|
if (NON_SAVING_SETJMP && find_reg_note (p, REG_SETJMP, NULL))
|
|
|
|
|
return 0;
|
1995-10-29 13:14:22 +01:00
|
|
|
|
#endif
|
2001-08-07 22:24:08 +02:00
|
|
|
|
}
|
1995-10-29 13:14:22 +01:00
|
|
|
|
|
2000-08-04 22:28:08 +02:00
|
|
|
|
if (INSN_P (p))
|
1992-02-28 11:23:25 +01:00
|
|
|
|
{
|
1998-08-16 02:55:58 +02:00
|
|
|
|
pat = PATTERN (p);
|
|
|
|
|
|
1999-09-01 16:30:35 +02:00
|
|
|
|
/* Watch out for unspec_volatile, and volatile asms. */
|
|
|
|
|
if (volatile_insn_p (pat))
|
1998-08-16 02:55:58 +02:00
|
|
|
|
return 0;
|
|
|
|
|
|
1992-02-28 11:23:25 +01:00
|
|
|
|
/* If this insn P stores in either GOAL or VALUE, return 0.
|
|
|
|
|
If GOAL is a memory ref and this insn writes memory, return 0.
|
|
|
|
|
If GOAL is a memory ref and its address is not constant,
|
|
|
|
|
and this insn P changes a register used in GOAL, return 0. */
|
|
|
|
|
|
2000-04-07 11:24:45 +02:00
|
|
|
|
if (GET_CODE (pat) == COND_EXEC)
|
|
|
|
|
pat = COND_EXEC_CODE (pat);
|
1992-02-28 11:23:25 +01:00
|
|
|
|
if (GET_CODE (pat) == SET || GET_CODE (pat) == CLOBBER)
|
|
|
|
|
{
|
2001-10-11 05:16:15 +02:00
|
|
|
|
rtx dest = SET_DEST (pat);
|
1992-02-28 11:23:25 +01:00
|
|
|
|
while (GET_CODE (dest) == SUBREG
|
|
|
|
|
|| GET_CODE (dest) == ZERO_EXTRACT
|
|
|
|
|
|| GET_CODE (dest) == SIGN_EXTRACT
|
|
|
|
|
|| GET_CODE (dest) == STRICT_LOW_PART)
|
|
|
|
|
dest = XEXP (dest, 0);
|
|
|
|
|
if (GET_CODE (dest) == REG)
|
|
|
|
|
{
|
2001-10-11 05:16:15 +02:00
|
|
|
|
int xregno = REGNO (dest);
|
1992-02-28 11:23:25 +01:00
|
|
|
|
int xnregs;
|
|
|
|
|
if (REGNO (dest) < FIRST_PSEUDO_REGISTER)
|
|
|
|
|
xnregs = HARD_REGNO_NREGS (xregno, GET_MODE (dest));
|
|
|
|
|
else
|
|
|
|
|
xnregs = 1;
|
|
|
|
|
if (xregno < regno + nregs && xregno + xnregs > regno)
|
|
|
|
|
return 0;
|
|
|
|
|
if (xregno < valueno + valuenregs
|
|
|
|
|
&& xregno + xnregs > valueno)
|
|
|
|
|
return 0;
|
|
|
|
|
if (goal_mem_addr_varies
|
1992-05-12 04:51:59 +02:00
|
|
|
|
&& reg_overlap_mentioned_for_reload_p (dest, goal))
|
1992-02-28 11:23:25 +01:00
|
|
|
|
return 0;
|
1998-07-07 02:18:02 +02:00
|
|
|
|
if (xregno == STACK_POINTER_REGNUM && need_stable_sp)
|
|
|
|
|
return 0;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
}
|
|
|
|
|
else if (goal_mem && GET_CODE (dest) == MEM
|
|
|
|
|
&& ! push_operand (dest, GET_MODE (dest)))
|
|
|
|
|
return 0;
|
1995-04-10 13:16:13 +02:00
|
|
|
|
else if (GET_CODE (dest) == MEM && regno >= FIRST_PSEUDO_REGISTER
|
|
|
|
|
&& reg_equiv_memory_loc[regno] != 0)
|
|
|
|
|
return 0;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
else if (need_stable_sp && push_operand (dest, GET_MODE (dest)))
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
else if (GET_CODE (pat) == PARALLEL)
|
|
|
|
|
{
|
2001-10-11 05:16:15 +02:00
|
|
|
|
int i;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
for (i = XVECLEN (pat, 0) - 1; i >= 0; i--)
|
|
|
|
|
{
|
2001-10-11 05:16:15 +02:00
|
|
|
|
rtx v1 = XVECEXP (pat, 0, i);
|
2000-04-07 11:24:45 +02:00
|
|
|
|
if (GET_CODE (v1) == COND_EXEC)
|
|
|
|
|
v1 = COND_EXEC_CODE (v1);
|
1992-02-28 11:23:25 +01:00
|
|
|
|
if (GET_CODE (v1) == SET || GET_CODE (v1) == CLOBBER)
|
|
|
|
|
{
|
2001-10-11 05:16:15 +02:00
|
|
|
|
rtx dest = SET_DEST (v1);
|
1992-02-28 11:23:25 +01:00
|
|
|
|
while (GET_CODE (dest) == SUBREG
|
|
|
|
|
|| GET_CODE (dest) == ZERO_EXTRACT
|
|
|
|
|
|| GET_CODE (dest) == SIGN_EXTRACT
|
|
|
|
|
|| GET_CODE (dest) == STRICT_LOW_PART)
|
|
|
|
|
dest = XEXP (dest, 0);
|
|
|
|
|
if (GET_CODE (dest) == REG)
|
|
|
|
|
{
|
2001-10-11 05:16:15 +02:00
|
|
|
|
int xregno = REGNO (dest);
|
1992-02-28 11:23:25 +01:00
|
|
|
|
int xnregs;
|
|
|
|
|
if (REGNO (dest) < FIRST_PSEUDO_REGISTER)
|
|
|
|
|
xnregs = HARD_REGNO_NREGS (xregno, GET_MODE (dest));
|
|
|
|
|
else
|
|
|
|
|
xnregs = 1;
|
|
|
|
|
if (xregno < regno + nregs
|
|
|
|
|
&& xregno + xnregs > regno)
|
|
|
|
|
return 0;
|
|
|
|
|
if (xregno < valueno + valuenregs
|
|
|
|
|
&& xregno + xnregs > valueno)
|
|
|
|
|
return 0;
|
|
|
|
|
if (goal_mem_addr_varies
|
1992-05-12 04:51:59 +02:00
|
|
|
|
&& reg_overlap_mentioned_for_reload_p (dest,
|
|
|
|
|
goal))
|
1992-02-28 11:23:25 +01:00
|
|
|
|
return 0;
|
1998-07-09 12:06:18 +02:00
|
|
|
|
if (xregno == STACK_POINTER_REGNUM && need_stable_sp)
|
|
|
|
|
return 0;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
}
|
|
|
|
|
else if (goal_mem && GET_CODE (dest) == MEM
|
|
|
|
|
&& ! push_operand (dest, GET_MODE (dest)))
|
|
|
|
|
return 0;
|
1997-11-02 22:19:36 +01:00
|
|
|
|
else if (GET_CODE (dest) == MEM && regno >= FIRST_PSEUDO_REGISTER
|
|
|
|
|
&& reg_equiv_memory_loc[regno] != 0)
|
|
|
|
|
return 0;
|
1994-12-29 03:17:58 +01:00
|
|
|
|
else if (need_stable_sp
|
|
|
|
|
&& push_operand (dest, GET_MODE (dest)))
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (GET_CODE (p) == CALL_INSN && CALL_INSN_FUNCTION_USAGE (p))
|
|
|
|
|
{
|
|
|
|
|
rtx link;
|
|
|
|
|
|
|
|
|
|
for (link = CALL_INSN_FUNCTION_USAGE (p); XEXP (link, 1) != 0;
|
|
|
|
|
link = XEXP (link, 1))
|
|
|
|
|
{
|
|
|
|
|
pat = XEXP (link, 0);
|
|
|
|
|
if (GET_CODE (pat) == CLOBBER)
|
|
|
|
|
{
|
2001-10-11 05:16:15 +02:00
|
|
|
|
rtx dest = SET_DEST (pat);
|
2000-05-09 13:07:48 +02:00
|
|
|
|
|
1994-12-29 03:17:58 +01:00
|
|
|
|
if (GET_CODE (dest) == REG)
|
|
|
|
|
{
|
2001-10-11 05:16:15 +02:00
|
|
|
|
int xregno = REGNO (dest);
|
2000-05-09 13:07:48 +02:00
|
|
|
|
int xnregs
|
|
|
|
|
= HARD_REGNO_NREGS (xregno, GET_MODE (dest));
|
|
|
|
|
|
1994-12-29 03:17:58 +01:00
|
|
|
|
if (xregno < regno + nregs
|
|
|
|
|
&& xregno + xnregs > regno)
|
|
|
|
|
return 0;
|
2000-05-09 13:07:48 +02:00
|
|
|
|
else if (xregno < valueno + valuenregs
|
2000-08-29 23:14:57 +02:00
|
|
|
|
&& xregno + xnregs > valueno)
|
1994-12-29 03:17:58 +01:00
|
|
|
|
return 0;
|
2000-05-09 13:07:48 +02:00
|
|
|
|
else if (goal_mem_addr_varies
|
|
|
|
|
&& reg_overlap_mentioned_for_reload_p (dest,
|
1994-12-29 03:17:58 +01:00
|
|
|
|
goal))
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
2000-05-09 13:07:48 +02:00
|
|
|
|
|
1994-12-29 03:17:58 +01:00
|
|
|
|
else if (goal_mem && GET_CODE (dest) == MEM
|
|
|
|
|
&& ! push_operand (dest, GET_MODE (dest)))
|
|
|
|
|
return 0;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
else if (need_stable_sp
|
|
|
|
|
&& push_operand (dest, GET_MODE (dest)))
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
#ifdef AUTO_INC_DEC
|
|
|
|
|
/* If this insn auto-increments or auto-decrements
|
|
|
|
|
either regno or valueno, return 0 now.
|
|
|
|
|
If GOAL is a memory ref and its address is not constant,
|
|
|
|
|
and this insn P increments a register used in GOAL, return 0. */
|
|
|
|
|
{
|
2001-10-11 05:16:15 +02:00
|
|
|
|
rtx link;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
|
|
|
|
for (link = REG_NOTES (p); link; link = XEXP (link, 1))
|
|
|
|
|
if (REG_NOTE_KIND (link) == REG_INC
|
|
|
|
|
&& GET_CODE (XEXP (link, 0)) == REG)
|
|
|
|
|
{
|
2001-10-11 05:16:15 +02:00
|
|
|
|
int incno = REGNO (XEXP (link, 0));
|
1992-02-28 11:23:25 +01:00
|
|
|
|
if (incno < regno + nregs && incno >= regno)
|
|
|
|
|
return 0;
|
|
|
|
|
if (incno < valueno + valuenregs && incno >= valueno)
|
|
|
|
|
return 0;
|
|
|
|
|
if (goal_mem_addr_varies
|
1992-05-12 04:51:59 +02:00
|
|
|
|
&& reg_overlap_mentioned_for_reload_p (XEXP (link, 0),
|
|
|
|
|
goal))
|
1992-02-28 11:23:25 +01:00
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
#endif
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Find a place where INCED appears in an increment or decrement operator
|
|
|
|
|
within X, and return the amount INCED is incremented or decremented by.
|
|
|
|
|
The value is always positive. */
|
|
|
|
|
|
|
|
|
|
static int
|
|
|
|
|
find_inc_amount (x, inced)
|
|
|
|
|
rtx x, inced;
|
|
|
|
|
{
|
2001-10-11 05:16:15 +02:00
|
|
|
|
enum rtx_code code = GET_CODE (x);
|
|
|
|
|
const char *fmt;
|
|
|
|
|
int i;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
|
|
|
|
if (code == MEM)
|
|
|
|
|
{
|
2001-10-11 05:16:15 +02:00
|
|
|
|
rtx addr = XEXP (x, 0);
|
1992-02-28 11:23:25 +01:00
|
|
|
|
if ((GET_CODE (addr) == PRE_DEC
|
|
|
|
|
|| GET_CODE (addr) == POST_DEC
|
|
|
|
|
|| GET_CODE (addr) == PRE_INC
|
|
|
|
|
|| GET_CODE (addr) == POST_INC)
|
|
|
|
|
&& XEXP (addr, 0) == inced)
|
|
|
|
|
return GET_MODE_SIZE (GET_MODE (x));
|
2000-07-28 19:46:18 +02:00
|
|
|
|
else if ((GET_CODE (addr) == PRE_MODIFY
|
|
|
|
|
|| GET_CODE (addr) == POST_MODIFY)
|
|
|
|
|
&& GET_CODE (XEXP (addr, 1)) == PLUS
|
|
|
|
|
&& XEXP (addr, 0) == XEXP (XEXP (addr, 1), 0)
|
|
|
|
|
&& XEXP (addr, 0) == inced
|
|
|
|
|
&& GET_CODE (XEXP (XEXP (addr, 1), 1)) == CONST_INT)
|
2000-08-29 23:14:57 +02:00
|
|
|
|
{
|
|
|
|
|
i = INTVAL (XEXP (XEXP (addr, 1), 1));
|
|
|
|
|
return i < 0 ? -i : i;
|
|
|
|
|
}
|
|
|
|
|
}
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
|
|
|
|
fmt = GET_RTX_FORMAT (code);
|
|
|
|
|
for (i = GET_RTX_LENGTH (code) - 1; i >= 0; i--)
|
|
|
|
|
{
|
|
|
|
|
if (fmt[i] == 'e')
|
|
|
|
|
{
|
2001-10-11 05:16:15 +02:00
|
|
|
|
int tem = find_inc_amount (XEXP (x, i), inced);
|
1992-02-28 11:23:25 +01:00
|
|
|
|
if (tem != 0)
|
|
|
|
|
return tem;
|
|
|
|
|
}
|
|
|
|
|
if (fmt[i] == 'E')
|
|
|
|
|
{
|
2001-10-11 05:16:15 +02:00
|
|
|
|
int j;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
for (j = XVECLEN (x, i) - 1; j >= 0; j--)
|
|
|
|
|
{
|
2001-10-11 05:16:15 +02:00
|
|
|
|
int tem = find_inc_amount (XVECEXP (x, i, j), inced);
|
1992-02-28 11:23:25 +01:00
|
|
|
|
if (tem != 0)
|
|
|
|
|
return tem;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
2000-11-10 18:10:29 +01:00
|
|
|
|
/* Return 1 if register REGNO is the subject of a clobber in insn INSN.
|
|
|
|
|
If SETS is nonzero, also consider SETs. */
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
|
|
|
|
int
|
2000-11-10 18:10:29 +01:00
|
|
|
|
regno_clobbered_p (regno, insn, mode, sets)
|
* Rework fields used to describe positions of bitfields and
modify sizes to be unsigned and use HOST_WIDE_INT.
* alias.c (reg_known_value_size): Now unsigned.
* c-typeck.c (build_unary_op, case ADDR_EXPR): Use byte_position.
(really_start_incremental_init): Use bitsize_zero_node.
(push_init_level, pop_init_level, output_init_element): Likewise.
Use bitsize_unit_node and bitsize_one_node.
(output_pending_init_elements, process_init_element): Likewise.
* combine.c (combine_max_regno, reg_sign_bit_copies): Now unsigned.
(make_extraction): Position and length HOST_WIDE_INT and unsigned
HOST_WIDE_INT, respectively.
(get_pos_from_mask): Passed in value is unsigned HOST_WIDE_INT.
(num_sign_bit_copies): Returns unsigned.
BITWIDTH now unsigned; rework arithmetic.
Remove recursive call from arg to MAX.
(combine_instructions, init_reg_last_arrays): NREGS now unsigned.
(setup_incoming_promotions, can_combine_p, try_combine, simplify_set):
REGNO now unsigned.
(set_nonzero_bit_and_sign_copies): NUM now unsigned.
(find_split_point, expand_compound_operation, make_extraction): LEN
now unsigned HOST_WIDE_INT, POS now HOST_WIDE_INT.
(make_field_assignment): Likewise.
(combine_simplify_rtx): Add cast.
(expand_compound_operation): MODEWIDTH now unsigned; rework arithmetic.
(force_to_mode): WIDTH now unsigned; add cast.
(if_then_else_cond): SIZE now unsigned.
(nonzero_bits): MODE_WIDTH, RESULT_WIDTH, and WIDTH now unsigned.
(extended_count): Now returns unsigned.
(simplify_shift_const): COUNT unsigned; arg is now INPUT_COUNT.
Add SIGNED_COUNT variable; MODE_WORDS and FIRST_COUNT now unsigned.
(simplify_comparison): MODE_WIDTH now unsigned.
(update_table_tick): REGNO and ENDREGNO now unsigned; new var R.
(mark_used_regs_combine): Likewise; rework arithmetic.
(record_value_for_reg): REGNO, ENDREGNO, and I now unsigned.
(record_dead_and_set_regs, reg_dead_at_p, distribute_notes): Likewise.
(record_promoted_value): REGNO now unsigned.
(get_last_value_validate): REGNO, ENDREGNO, and J now unsigned.
(get_last_value): REGNO now unsigned.
(use_crosses_set_p): REGNO and ENDREGNO now unsigned.
(reg_dead_regno, reg_dead_endregno): Now unsigned.
(remove_death): Arg REGNO now unsigned.
(move_deaths): REGNO, DEADREGNO, DEADEND, OUREND, and I now unsigned.
(reg_bitfield_target_p): REGNO, REGNO, ENDREGNO, and ENDTREGNO
now unsigned.
* convert.c (convert_to_integer): INPREC and OUTPREC now unsigned.
* cse.c (struct qty_table_elem): FIRST_REG and LAST_REG now unsigned.
(struct cse_reg_info): REGNO now unsigned.
(cached_regno): Now unsigned.
(REGNO_QTY_VALID_P): Add cast.
(make_new_qty, make_regs_eqv, delete_reg_eqiv): Regno args unsigned.
(remove_invalid_regs): Likewise.
(remove_invalid_subreg_refs): Likewise; arg WORD also unsigned
as are variables END and I.
(get_cse_reg_info, insert): Likewise.
(mention_regs, invalidate_for_call): REGNO, ENDREGNO, and I unsigned.
(canon_hash): Likewise.
(insert_regs, lookup_for_remove): REGNO now unsigned.
(invalidate): REGNO, ENDREGNO, TREGNO, and TENDREGNO now unsigned.
New variable RN.
* dbxout.c (dbxout_parms, dbxout_reg_parms): Don't check for REGNO < 0.
* dwarf2out.c (dwarf2ou_frame_debug_expr): Remove cast.
* emit-rtl.c (subreg_realpart_p): Add cast.
(operand_subword): Arg I is now unsigned as is var PARTWORDS.
(operand_subword_force): Arg I is now unsigned.
* except.c (eh_regs): Variable I is now unsigned.
* explow.c (hard_function_value): BYTES is unsigned HOST_WIDE_INT.
* expmed.c (store_fixed_bit_field): Position is HOST_WIDE_INT;
length is unsigned HOST_WIDE_INT; likewise for internal variables.
(store_split_bit_field, extract_fixed_bit_field): Likewise.
(extract_split_bit_field, store_bit_field, extract_bit_field):
Likewise.
* expr.c (store_constructor_fields, store_constructor, store_field):
Positions are HOST_WIDE_INT and lengths are unsigned HOST_WIDE_INT.
(expand_assignment, expand_expr, expand_expr_unaligned): Likewise.
(do_jump): Likewise.
(move_by_pieces, move_by_pieces_ninsns, clear_by_pieces):
MAX_SIZE is now unsigned.
(emit_group_load): BYTEPOS is HOST_WIDE_INT; BYTELEN is unsigned.
(emit_group_store): Likewise.
(emit_move_insn): I now unsigned.
(store_constructor): Use host_integerp, tree_low_cst, and
bitsize_unit_node.
(get_inner_reference): Return bitpos and bitsize as HOST_WIDE_INT.
Rework all calculations to use trees and new fields.
* expr.h (promoted_input_arg): Regno now unsigned.
(store_bit_field, extract_bit_field): Adjust types of pos and size.
(mark_seen_cases): Arg is HOST_WIDE_INT.
* flow.c (verify_wide_reg_1): REGNO now unsigned.
* fold-const.c (decode_field_reference): Size and pos HOST_WIDE_INT;
precisions and alignments are unsigned.
(optimize_bit_field_compare, fold_truthop): Likewise.
(int_const_binop): Adjust threshold for size_int_type_wide call.
(fold_convert): Likewise.
(size_int_type_wide): Make table larger and fix thinko that only
had half of table used.
(all_ones_mask_p, fold): Precisions are unsigned.
* function.c (put_reg_info_stack): REGNO is unsigned.
(instantiate_decl): Size is HOST_WIDE_INT.
(instantiate_virtual_regs): I is unsigned.
(assign_parms): REGNO, REGNOI, and REGNOR are unsigned.
(promoted_input_arg): REGNO is unsigned.
* function.h (struct function): x_max_parm_reg is now unsigned.
* gcse.c (max_gcse_regno): Now unsigned.
(struct null_pointer_info): min_reg and max_reg now unsigned.
(lookup_set, next_set): REGNO arg now unsigned.
(compute_hash_table): REGNO and I now unsigned.
(handle_avail_expr): regnum_for_replacing now unsigned.
(cprop_insn): REGNO now unsigned.
(delete_null_pointer_checks_1): BLOCK_REG now pointer to unsigned.
* ggc-common.c (ggc_mark_tree_children, case FIELD_DECL): New case.
* global.c (set_preference): SRC_REGNO, DEST_REGNO, and I now unsigned.
* hard-reg-set.h (reg_class_size): Now unsigned.
* integrate.c (mark_stores): LAST_REG and I now unsigned; new UREGNO.
* jump.c (mark_modified_reg): I now unsigned; add cast.
(rtx_equal_for_thread_p): Add cast.
* loop.c (max_reg_before_loop): Now unsigned.
(struct_movable): REGNO now unsigned.
(try_copy_prop): REGNO arg unsigned.
(regs_match_p): XN and YN now unsigned.
(consec_sets_invariant_p, maybe_eliminate_biv): REGNO now unsigned.
(strength_reduce): Likewise; NREGS also unsigned.
(first_increment_giv, last_increment_giv unsigned): Now unsigned.
* loop.h (struct iv_class): REGNO now unsigned.
(max_reg_before_loop, first_increment_giv, last_increment_giv):
Now unsigned.
* machmode.h (mode_size, mode_unit_size): Now unsigned.
(mode_for_size, smallest_mode_for_size): Pass size as unsigned.
* optabs.c (expand_binop): I and NWORDS now unsigned.
(expand_unop): I now unsigned.
* print-tree.c (print_node): Don't print DECL_FIELD_BITPOS, but do
print DECL_FIELD_OFFSET and DECL_FIELD_BIT_OFFSET.
* real.c (significand_size): Now returns unsigned.
* real.h (significand_size): Likewise.
* regclass.c (reg_class_size): Now unsigned.
(choose_hard_reg_mode): Both operands now unsigned.
(record_reg_classes): REGNO and NR now unsigned.
(reg_scan): NREGS now unsigned.
(reg_scan_update): old_max_regno now unsigned.
(reg_scan_mark_refs): Arg MIN_REGNO and var REGNO now unsigned.
* reload.c (find_valid_class): BEST_SIZE now unsigned.
(find_dummy_reload): REGNO, NWORDS, and I now unsigned.
(hard_reg_set_here_p): Args BEG_REGNO and END_REGNO now unsigned.
Likewise for variable R.
(refers_to_regno_for_reload_p): Args REGNO and END_REGNO now unsigned,
as are variables INNER_REGNO and INNER_ENDREGNO; add new variable R.
(find_equiv_reg): Add casts.
(regno_clobbered_p): Arg REGNO now unsigned.
* reload.h (struct reload): NREGS now unsigned.
(refers_to_regno_for_reload_p): Regno args are unsigned.
(regno_clobbered_p): Likewise.
* reload1.c (reg_max_ref_width, spill_stack_slot_width): Now unsigned.
(compute_use_by_pseudos): REGNO now unsigned.
(find_reg): I and J now unsigned, new variable K, and change loop
variables accordingly; THIS_NREGS now unsigned.
(alter_reg): INHERENT_SIZE and TOTAL_SIZE now unsigned.
(spill_hard_reg): REGNO arg now unsigned; add casts.
(forget_old_reloads_1): REGNO, NR, and I now unsigned.
(mark_reload_reg_in_use): Arg REGNO and vars NREGS and I now unsigned.
(clear_reload_reg_in_use): Arg REGNO and vars NREGS, START_REGNO,
END_REGNO, CONFLICT_START, and CONFLICT_END now unsigned.
(reload_reg_free_p, reload_reg_reaches_end_p): Arg REGNO now unsigned.
(choose_reload_regs): MAX_GROUP_SIZE now unsigned.
(emit_reload_insns): REGNO now unsigned.
(reload_cse_move2add): Add cast.
(move2add_note_store): REGNO and I now unsigned; new variable ENDREGNO
and rework loop.
* resource.c (mark_referenced_resources, mark_set_resources): New
variable R; REGNO and LAST_REGNO now unsigned.
(mark_target_live_regs): J and REGNO now unsigned.
* rtl.c (mode_size, mode_unit_size): Now unsigned.
* rtl.h (union rtunion_def): New field rtuint.
(XCUINT): New macro.
(ADDRESSOF_REGNO, REGNO, SUBREG_WORD): New XCUINT.
(operand_subword, operand_subword_force): Word number is unsigned.
(choose_hard_reg_mode): Operands are unsigned.
(refers_to-regno_p, dead_or_set_regno_p): Regno arg is unsigned.
(find_regno_note, find_regno_fusage, replace_regs): Likewise.
(regno_use_in, combine_instructions, remove_death): Likewise.
(reg_scan, reg_scan_update): Likewise.
(extended_count): Return is unsigned.
* rtlanal.c (refers_to_regno_p): Args REGNO and ENDREGNO and vars I,
INNER_REGNO, and INNER_ENDREGNO now unsigned; new variable X_REGNO.
(reg_overlap_mentioned_p): REGNO and ENDREGNO now unsigned.
(reg_set_last_first_regno, reg_set_last_last_regno): Now unsigned.
(reg_reg_last_1): FIRS and LAST now unsigned.
(dead_or_set_p): REGNO, LAST_REGNO, and I now unsigned.
(dead_or_set_regno_p): Arg TEST_REGNO and vars REGNO and ENDREGNO
now unsigned.
(find_regno_note, regno_use_in): Arg REGNO now unsigned.
(find_regno_fusage): Likewise; also var REGNOTE now unsigned.
(find_reg_fusage): Variables REGNO, END_REGNO, and I now unsigned.
(replace_regs): Arg NREGS now unsigned.
* sdbout.c (sdbout_parms, sdbout_reg_parms): Don't check REGNO < 0.
* simplify-rtx.c (simplify_unary_operation): WIDTH now unsigned.
(simplify_binary_operation): Likewise.
(cselib_invalidate_regno): Arg REGNO and variables ENDREGNO, I, and
THIS_LAST now unsigned.
(cselib_record_set): Add cast.
* ssa.c (ssa_max_reg_num): Now unsigned.
(rename_block): REGNO now unsigned.
* stmt.c (expand_return): Bit positions unsigned HOST_WIDE_INT;
sizes now unsigned.
(all_cases_count): Just return -1 not -2.
COUNT, MINVAL, and LASTVAL now HOST_WIDE_INT.
Rework tests to use trees whenever possible.
Use host_integerp and tree_low_cst.
(mark_seen_cases): COUNT arg now HOST_WIDE_INT;
Likewise variable NEXT_NODE_OFFSET; XLO now unsigned.
(check_for_full_enumeration_handing): BYTES_NEEDED, I to HOST_WIDE_INT.
* stor-layout.c (mode_for_size): SIZE arg now unsigned.
(smallest_mode_for_size): Likewise.
(layout_decl): Simplify handing of a specified DECL_SIZE_UNIT.
KNOWN_ALIGN is now an alignment, so simplify code.
Don't turn off DECL_BIT_FIELD if field is BLKmode, but not type.
(start_record_layout): Renamed from new_record_layout_info.
Update to new fields.
(debug_rli, normalize_rli, rli_size_unit_so_far, rli_size_so_far):
New functions.
(place_union_field): Renamed from layout_union_field.
Update to use new fields in rli.
(place_field): Renamed from layout_field.
Major rewrite to use new fields in rli; pass alignment to layout_decl.
(finalize_record_size): Rework to use new fields in rli and handle
union.
(compute_record_mode): Rework to simplify and to use new DECL fields.
(finalize_type_size): Make rounding more consistent.
(finish_union_layout): Deleted.
(layout_type, case VOID_TYPE): Don't set TYPE_SIZE_UNIT either.
(layout_type, case RECORD_TYPE): Call new function names.
(initialize_sizetypes): Set TYPE_IS_SIZETYPE.
(set_sizetype): Set TYPE_IS_SIZETYPE earlier.
(get_best_mode): UNIT is now unsigned; remove casts.
* tree.c (bit_position): Compute from new fields.
(byte_position, int_byte_position): New functions.
(print_type_hash_statistics): Cast to remove warning.
(build_range_type): Use host_integerp and tree_low_cst to try to hash.
(build_index_type): Likewise; make subtype of sizetype.
(build_index_2_type): Pass sizetype to build_range_type.
(build_common_tree_nodes): Use size_int and bitsize_int to
initialize nodes; add bitsize_{zero,one,unit}_node.
* tree.h (DECL_FIELD_CONTEXT): Use FIELD_DECL_CHECK.
(DECL_BIT_FIELD_TYPE, DECL_QUALIFIER, DECL_FCONTEXT): Likewise.
(DECL_PACKED, DECL_BIT_FIELD): Likewise.
(DECL_FIELD_BITPOS): Deleted.
(DECL_FIELD_OFFSET, DECL_FIELD_BIT_OFFSET): New fields.
(DECL_RESULT, DECL_SAVED_INSNS): Use FUNCTION_DECL_CHECK.
(DECL_FRAME_SIZE, DECL_FUNCTION_CODE, DECL_NO_STATIC_CHAIN): Likewise.
(DECL_INLINE, DECL_BUILT_IN_NONANSI, DECL_IS_MALLOC): Likewise.
(DECL_BUILT_IN_CLASS, DECL_STATIC_CONSTRUCTOR): Likewise.
(DECL_STATIC_DESTRUCTOR, DECL_NO_CHECK_MEMORY_USAGE): Likewise.
(DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT, DECL_NO_LIMIT_STACK) Likewise.
(DECL_ORIGINAL_TYPE, TYPE_DECL_SUPPRESS_DEBUG): Use TYPE_DECL_CHECK.
(DECL_ARG_TYPE_AS_WRITEN, DECL_ARG_TYPE): Use PARM_DECL_CHECK.
(DECL_INCOMING_RTL, DECL_TRANSPARENT_UNION): Likewise.
(DECL_ALIGN): Adjust to new field in union.
(DECL_OFFSET_ALIGN): New field.
(DECL_ERROR_ISSUED, DECL_TOO_LATE): Use LABEL_DECL_CHECK.
(DECL_IN_TEXT_SECTION): Use VAR_DECL_CHECK.
(union tree_decl): Add struct for both aligns.
(enum tree_index): Add TI_BITSIZE_{ZERO,ONE,UNIT}.
(bitsize_zero_node, bitsize_one_node, bitsize_unit_node): Added.
(struct record_layout_info): Rework fields to have offset
alignment and byte and bit position.
(start_record_layout, place_field): Renamed from old names.
(rli_size_so_far, rli_size_unit_so_far, normalize_rli): New decls.
(byte_position, int_byte_position): Likewise.
(get_inner_reference): Change types of position and length.
* unroll.c (unroll_loop): New variable R; use for some loops.
MAX_LOCAL_REGNUM and MAXREGNUM now unsigned.
(calculate_giv_inc): Arg REGNO now unsigned.
(copy_loop_body): REGNO and SRC_REGNO now unsigned.
* varasm.c (assemble_variable): Clean up handling of size using
host_integerp and tree_low_cst.
(decode_addr_const): Use byte, not bit, position.
(output_constructor): bitpos and offsets are HOST_WIDE_INT;
use tree_low_cst and int_bit_position.
* objc/objc-act.c (build_ivar_list_initializer): Use byte_position.
* ch/actions.c (check_missing_cases): BYTES_NEEDED is HOST_WIDE_INT.
* ch/typeck.c (expand_constant_to_buffer): Use int_byte_position.
(extract_constant_from_buffer): Likewise.
* cp/class.c (build_vbase_pointer_fields): layout_field now
place_field.
(get_vfield_offset): Use byte_position.
(set_rtti_entry): Set OFFSET to ssizetype zero.
(get_binfo_offset_as_int): Deleted.
(dfs_record_base_offsets): Use tree_low_cst.
(dfs_search_base_offsets): Likewise.
(layout_nonempty_base_or_field): Reflect changes in RLI format
and call byte_position.
(layout_empty_base): Convert offset to ssizetype.
(build_base_field): use rli_size_unit_so_far.
(dfs_propagate_binfo_offsets): Do computation in proper type.
(layout_virtual_bases): Pass ssizetype to propagate_binfo_offsets.
(layout_class_type): Reflect changes in RLI names and fields.
(finish_struct_1): Set DECL_FIELD_OFFSET.
* cp/dump.c (dequeue_and_dump): Call bit_position.
* cp/expr.c (cplus_expand_constant): Use byte_position.
* cp/rtti.c (expand_class_desc): Use bitsize_one_node.
* cp/typeck.c (build_component_addr): Use byte_position and don't
special case for zero offset.
* f/com.c (ffecom_tree_canonize_ptr_): Use bitsize_zero_node.
(ffecom_tree_canonize_ref_): Likewise.
* java/class.c (make_field_value): Use byte_position.
* java/expr.c (JAVA_ARRAY_LENGTH_OFFSET): Use byte_position.
(java_array_data_offset): Likewise.
* java/java-tree.h (MAYBE_CREATE_TYPE_TYPE_LANG_SPECIFIC): Add case to
bzero call.
From-SVN: r32742
2000-03-25 19:34:13 +01:00
|
|
|
|
unsigned int regno;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
rtx insn;
|
2000-09-07 13:07:07 +02:00
|
|
|
|
enum machine_mode mode;
|
2000-11-10 18:10:29 +01:00
|
|
|
|
int sets;
|
1992-02-28 11:23:25 +01:00
|
|
|
|
{
|
2001-07-10 12:38:10 +02:00
|
|
|
|
unsigned int nregs = HARD_REGNO_NREGS (regno, mode);
|
|
|
|
|
unsigned int endregno = regno + nregs;
|
2000-09-07 13:07:07 +02:00
|
|
|
|
|
2000-11-10 18:10:29 +01:00
|
|
|
|
if ((GET_CODE (PATTERN (insn)) == CLOBBER
|
|
|
|
|
|| (sets && GET_CODE (PATTERN (insn)) == SET))
|
1992-02-28 11:23:25 +01:00
|
|
|
|
&& GET_CODE (XEXP (PATTERN (insn), 0)) == REG)
|
2000-09-07 13:07:07 +02:00
|
|
|
|
{
|
2001-07-10 12:38:10 +02:00
|
|
|
|
unsigned int test = REGNO (XEXP (PATTERN (insn), 0));
|
2000-09-07 13:07:07 +02:00
|
|
|
|
|
2000-09-11 15:13:00 +02:00
|
|
|
|
return test >= regno && test < endregno;
|
2000-09-07 13:07:07 +02:00
|
|
|
|
}
|
1992-02-28 11:23:25 +01:00
|
|
|
|
|
|
|
|
|
if (GET_CODE (PATTERN (insn)) == PARALLEL)
|
|
|
|
|
{
|
|
|
|
|
int i = XVECLEN (PATTERN (insn), 0) - 1;
|
|
|
|
|
|
|
|
|
|
for (; i >= 0; i--)
|
|
|
|
|
{
|
|
|
|
|
rtx elt = XVECEXP (PATTERN (insn), 0, i);
|
2000-11-10 18:10:29 +01:00
|
|
|
|
if ((GET_CODE (elt) == CLOBBER
|
|
|
|
|
|| (sets && GET_CODE (PATTERN (insn)) == SET))
|
|
|
|
|
&& GET_CODE (XEXP (elt, 0)) == REG)
|
2000-09-07 13:07:07 +02:00
|
|
|
|
{
|
2001-07-10 12:38:10 +02:00
|
|
|
|
unsigned int test = REGNO (XEXP (elt, 0));
|
2002-05-09 03:42:28 +02:00
|
|
|
|
|
2000-09-11 15:13:00 +02:00
|
|
|
|
if (test >= regno && test < endregno)
|
2000-09-07 13:07:07 +02:00
|
|
|
|
return 1;
|
|
|
|
|
}
|
1992-02-28 11:23:25 +01:00
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
1994-10-27 18:05:04 +01:00
|
|
|
|
|
c-common.c (c_tree_code_name): Const-ification.
* c-common.c (c_tree_code_name): Const-ification.
* c-decl.c (c_decode_option): Likewise.
* c-typeck.c (warn_for_assignment): Likewise.
* collect2.c (libexts, is_ctor_dtor, main, ignore_library):
Likewise.
* cppinit.c (output_deps): Likewise.
* dependence.c (dependence_string, direction_string): Likewise.
* dwarf2out.c (output_ranges): Likewise.
* fixinc/fixfixes.c (emit_gnu_type): Likewise.
* fixinc/gnu-regex.c (re_error_msgid): Likewise.
* gcc.c (standard_exec_prefix, standard_exec_prefix_1,
standard_startfile_prefix, standard_startfile_prefix_1,
standard_startfile_prefix_2, tooldir_base_prefix,
standard_bindir_prefix, find_a_file): Likewise.
* genattrtab.c (make_length_attrs): Likewise.
* gencheck.c (tree_codes): Likewise.
* genemit.c (gen_split): Likewise.
* genrecog.c (special_mode_pred_table): Likewise.
* graph.c (graph_ext): Likewise.
* protoize (default_include): Likewise.
* reload.c (reload_when_needed_name): Likewise.
* sched-vis.c (visualize_stall_cycles): Likewise.
* tlink.c (recompile_files): Likewise.
* toplev.c (decode_g_option): Likewise.
* tradcpp.c (output_deps): Likewise.
* varasm.c (decode_reg_name): Likewise.
* arm.c (arm_condition_codes, strings_fpa, thumb_condition_code):
Const-ification.
* arm.md: Likewise.
* avr.c (avr_regnames, encode_section_info): Likewise.
* c4x.c (float_reg_names): Likewise.
* darwin.h (ASM_GLOBALIZE_LABEL): Likewise.
* elfos.h (const_section): Likewise.
* i386.c (ix86_comp_type_attributes): Likewise.
* i386/win32.h (STRIP_NAME_ENCODING): Likewise.
* ia64/aix.h (UNIQUE_SECTION): Likewise.
* ia64.c (type_names): Likewise.
* m68hc11.c (reg_class_names): Likewise.
* m88k.c (m_options): Likewise.
* mips.c (mips_output_conditional_branch, mips_unique_section):
Likewise.
* rs6000/sysv4.h (ASM_DECLARE_FUNCTION_NAME): Likewise.
* sparc.c (sparc_flat_function_prologue, sparc_flat_function_epilogue,
ultra_code_names): Likewise.
* sparc.h (OVERRIDE_OPTIONS): Likewise.
From-SVN: r45567
2001-09-12 19:18:03 +02:00
|
|
|
|
static const char *const reload_when_needed_name[] =
|
1994-10-27 18:05:04 +01:00
|
|
|
|
{
|
1999-09-01 16:30:35 +02:00
|
|
|
|
"RELOAD_FOR_INPUT",
|
|
|
|
|
"RELOAD_FOR_OUTPUT",
|
1994-10-27 18:05:04 +01:00
|
|
|
|
"RELOAD_FOR_INSN",
|
1997-02-03 19:04:00 +01:00
|
|
|
|
"RELOAD_FOR_INPUT_ADDRESS",
|
|
|
|
|
"RELOAD_FOR_INPADDR_ADDRESS",
|
1994-10-27 18:05:04 +01:00
|
|
|
|
"RELOAD_FOR_OUTPUT_ADDRESS",
|
1997-02-03 19:04:00 +01:00
|
|
|
|
"RELOAD_FOR_OUTADDR_ADDRESS",
|
1999-09-01 16:30:35 +02:00
|
|
|
|
"RELOAD_FOR_OPERAND_ADDRESS",
|
1994-10-27 18:05:04 +01:00
|
|
|
|
"RELOAD_FOR_OPADDR_ADDR",
|
1999-09-01 16:30:35 +02:00
|
|
|
|
"RELOAD_OTHER",
|
1994-10-27 18:05:04 +01:00
|
|
|
|
"RELOAD_FOR_OTHER_ADDRESS"
|
|
|
|
|
};
|
|
|
|
|
|
rtl.h (rtx_format): Constify a char*.
* rtl.h (rtx_format): Constify a char*.
* rtl.c (rtx_format): Likewise.
(copy_rtx, copy_most_rtx, read_rtx): Likewise.
(init_rtl): Use accessor macro, not `rtx_format'.
* alias.c (rtx_equal_for_memref_p, find_symbolic_term): Constify a
char*.
* caller-save.c (mark_referenced_regs): Likewise.
* combine.c (subst, make_compound_operation, known_cond,
gen_rtx_combine, update_table_tick, get_last_value_validate,
use_crosses_set_p, mark_used_regs_combine, move_deaths): Likewise.
* cse.c (rtx_cost, mention_regs, canon_hash, exp_equiv_p,
refers_to_p, canon_reg, fold_rtx, cse_process_notes,
count_reg_usage): Likewise.
* emit-rtl.c (gen_rtx, copy_rtx_if_shared, reset_used_flags):
Likewise.
* final.c (leaf_renumber_regs_insn): Likewise.
* flow.c (mark_used_regs, find_use_as_address, dump_flow_info,
dump_edge_info, count_reg_references): Likewise.
* function.c (fixup_var_refs_1, walk_fixup_memory_subreg,
fixup_stack_1, purge_addressof_1, instantiate_virtual_regs_1):
Likewise.
* gcse.c (oprs_unchanged_p, hash_expr_1, expr_equiv_p,
oprs_not_set_p, expr_killed_p, compute_transp, find_used_regs,
add_label_notes): Likewise.
* genattrtab.c (attr_rtx, attr_copy_rtx, encode_units_mask,
clear_struct_flag, count_sub_rtxs, count_alternatives,
compares_alternatives_p, contained_in_p, walk_attr_value,
write_expr_attr_cache): Likewise.
* genconfig.c (walk_insn_part): Likewise.
* genemit.c (max_operand_1, gen_exp): Likewise.
* genextract.c (walk_rtx): Likewise.
* genflags.c (num_operands): Likewise.
* genoutput.c (scan_operands): Likewise.
* genpeep.c (match_rtx): Likewise.
* genrecog.c (add_to_sequence): Likewise.
* haifa-sched.c (may_trap_exp, sched_analyze_2, attach_deaths):
Likewise.
* integrate.c (save_constants, copy_for_inline,
copy_rtx_and_substitute, subst_constants, restore_constants):
Likewise.
* jump.c (mark_jump_label, invert_exp, redirect_exp,
rtx_renumbered_equal_p, rtx_equal_for_thread_p): Likewise.
* local-alloc.c (contains_replace_regs, memref_referenced_p):
Likewise.
* loop.c (record_excess_regs, rtx_equal_for_loop_p,
add_label_notes, replace_call_address, count_nonfixed_reads,
invariant_p, find_single_use_in_loop, find_mem_givs,
find_life_end, maybe_eliminate_biv_1, update_reg_last_use):
Likewise.
* print-rtl.c (reg_names, print_rtx): Likewise.
* recog.c (validate_replace_rtx_1, find_single_use_1): Likewise.
* reg-stack.c (stack_regs_mentioned_p, record_label_references,
record_reg_life_pat, swap_rtx_condition, goto_block_pat,
print_blocks): Likewise.
* regclass.c (fix_register, record_address_regs,
reg_scan_mark_refs): Likewise.
* regmove.c (stable_but_for_p): Likewise.
* reload.c (loc_mentioned_in_p, operands_match_p,
find_reloads_toplevsubst_reg_equivs, find_reloads_address_1,
copy_replacements, refers_to_regno_for_reload_p,
refers_to_mem_for_reload_p, find_inc_amount, regno_clobbered_p,
reload_when_needed_name, reg_class_names, debug_reload_to_stream):
Likewise.
* reload1.c (eliminate_regs, scan_paradoxical_subregs,
delete_address_reloads_1, count_occurrences,
reload_cse_mem_conflict_p, reload_combine_note_use,
add_auto_inc_notes): Likewise.
* resource.c (mark_referenced_resources, mark_set_resources):
Likewise.
* rtlanal.c (rtx_unstable_p, rtx_varies_p, rtx_addr_varies_p,
reg_mentioned_p, regs_set_between_p, modified_between_p,
modified_in_p, refers_to_regno_p, reg_overlap_mentioned_p,
rtx_equal_p, volatile_insn_p, volatile_refs_p, side_effects_p,
may_trap_p, inequality_comparisons_p, replace_rtx, replace_regs,
jmp_uses_reg_or_mem, for_each_rtx, regno_use_in): Likewise.
* sched.c (sched_analyze_2, attach_deaths): Likewise.
* stupid.c (stupid_mark_refs): Likewise.
* unroll.c (remap_split_bivs): Likewise.
* varasm.c (mark_constants): Likewise.
* a29k/a29k.c (uses_local_reg_p): Likewise.
* alpha/alpha.c (summarize_insn): Likewise.
* arm/arm.c (symbol_mentioned_p, label_mentioned_p,
eliminate_lr2ip): Likewise.
* arm/thumb.c (symbol_mentioned_p, label_mentioned_p): Likewise.
* i386/i386.c (symbolic_reference_mentioned_p, copy_all_rtx,
reg_mentioned_in_mem): Likewise.
* ns32k/ns32k.c (global_symbolic_reference_mentioned_p,
symbolic_reference_mentioned_p): Likewise.
* romp/romp.c (unsigned_comparisons_p, hash_rtx): Likewise.
* sh/sh.c (regs_used, mark_use): Likewise.
* vax/vax.c (vax_rtx_cost): Likewise.
From-SVN: r28784
1999-08-21 01:05:25 +02:00
|
|
|
|
static const char * const reg_class_names[] = REG_CLASS_NAMES;
|
1994-10-27 18:05:04 +01:00
|
|
|
|
|
1997-10-17 17:40:52 +02:00
|
|
|
|
/* These functions are used to print the variables set by 'find_reloads' */
|
1994-10-27 18:05:04 +01:00
|
|
|
|
|
|
|
|
|
void
|
1997-10-17 17:40:52 +02:00
|
|
|
|
debug_reload_to_stream (f)
|
|
|
|
|
FILE *f;
|
1994-10-27 18:05:04 +01:00
|
|
|
|
{
|
|
|
|
|
int r;
|
rtl.h (rtx_format): Constify a char*.
* rtl.h (rtx_format): Constify a char*.
* rtl.c (rtx_format): Likewise.
(copy_rtx, copy_most_rtx, read_rtx): Likewise.
(init_rtl): Use accessor macro, not `rtx_format'.
* alias.c (rtx_equal_for_memref_p, find_symbolic_term): Constify a
char*.
* caller-save.c (mark_referenced_regs): Likewise.
* combine.c (subst, make_compound_operation, known_cond,
gen_rtx_combine, update_table_tick, get_last_value_validate,
use_crosses_set_p, mark_used_regs_combine, move_deaths): Likewise.
* cse.c (rtx_cost, mention_regs, canon_hash, exp_equiv_p,
refers_to_p, canon_reg, fold_rtx, cse_process_notes,
count_reg_usage): Likewise.
* emit-rtl.c (gen_rtx, copy_rtx_if_shared, reset_used_flags):
Likewise.
* final.c (leaf_renumber_regs_insn): Likewise.
* flow.c (mark_used_regs, find_use_as_address, dump_flow_info,
dump_edge_info, count_reg_references): Likewise.
* function.c (fixup_var_refs_1, walk_fixup_memory_subreg,
fixup_stack_1, purge_addressof_1, instantiate_virtual_regs_1):
Likewise.
* gcse.c (oprs_unchanged_p, hash_expr_1, expr_equiv_p,
oprs_not_set_p, expr_killed_p, compute_transp, find_used_regs,
add_label_notes): Likewise.
* genattrtab.c (attr_rtx, attr_copy_rtx, encode_units_mask,
clear_struct_flag, count_sub_rtxs, count_alternatives,
compares_alternatives_p, contained_in_p, walk_attr_value,
write_expr_attr_cache): Likewise.
* genconfig.c (walk_insn_part): Likewise.
* genemit.c (max_operand_1, gen_exp): Likewise.
* genextract.c (walk_rtx): Likewise.
* genflags.c (num_operands): Likewise.
* genoutput.c (scan_operands): Likewise.
* genpeep.c (match_rtx): Likewise.
* genrecog.c (add_to_sequence): Likewise.
* haifa-sched.c (may_trap_exp, sched_analyze_2, attach_deaths):
Likewise.
* integrate.c (save_constants, copy_for_inline,
copy_rtx_and_substitute, subst_constants, restore_constants):
Likewise.
* jump.c (mark_jump_label, invert_exp, redirect_exp,
rtx_renumbered_equal_p, rtx_equal_for_thread_p): Likewise.
* local-alloc.c (contains_replace_regs, memref_referenced_p):
Likewise.
* loop.c (record_excess_regs, rtx_equal_for_loop_p,
add_label_notes, replace_call_address, count_nonfixed_reads,
invariant_p, find_single_use_in_loop, find_mem_givs,
find_life_end, maybe_eliminate_biv_1, update_reg_last_use):
Likewise.
* print-rtl.c (reg_names, print_rtx): Likewise.
* recog.c (validate_replace_rtx_1, find_single_use_1): Likewise.
* reg-stack.c (stack_regs_mentioned_p, record_label_references,
record_reg_life_pat, swap_rtx_condition, goto_block_pat,
print_blocks): Likewise.
* regclass.c (fix_register, record_address_regs,
reg_scan_mark_refs): Likewise.
* regmove.c (stable_but_for_p): Likewise.
* reload.c (loc_mentioned_in_p, operands_match_p,
find_reloads_toplevsubst_reg_equivs, find_reloads_address_1,
copy_replacements, refers_to_regno_for_reload_p,
refers_to_mem_for_reload_p, find_inc_amount, regno_clobbered_p,
reload_when_needed_name, reg_class_names, debug_reload_to_stream):
Likewise.
* reload1.c (eliminate_regs, scan_paradoxical_subregs,
delete_address_reloads_1, count_occurrences,
reload_cse_mem_conflict_p, reload_combine_note_use,
add_auto_inc_notes): Likewise.
* resource.c (mark_referenced_resources, mark_set_resources):
Likewise.
* rtlanal.c (rtx_unstable_p, rtx_varies_p, rtx_addr_varies_p,
reg_mentioned_p, regs_set_between_p, modified_between_p,
modified_in_p, refers_to_regno_p, reg_overlap_mentioned_p,
rtx_equal_p, volatile_insn_p, volatile_refs_p, side_effects_p,
may_trap_p, inequality_comparisons_p, replace_rtx, replace_regs,
jmp_uses_reg_or_mem, for_each_rtx, regno_use_in): Likewise.
* sched.c (sched_analyze_2, attach_deaths): Likewise.
* stupid.c (stupid_mark_refs): Likewise.
* unroll.c (remap_split_bivs): Likewise.
* varasm.c (mark_constants): Likewise.
* a29k/a29k.c (uses_local_reg_p): Likewise.
* alpha/alpha.c (summarize_insn): Likewise.
* arm/arm.c (symbol_mentioned_p, label_mentioned_p,
eliminate_lr2ip): Likewise.
* arm/thumb.c (symbol_mentioned_p, label_mentioned_p): Likewise.
* i386/i386.c (symbolic_reference_mentioned_p, copy_all_rtx,
reg_mentioned_in_mem): Likewise.
* ns32k/ns32k.c (global_symbolic_reference_mentioned_p,
symbolic_reference_mentioned_p): Likewise.
* romp/romp.c (unsigned_comparisons_p, hash_rtx): Likewise.
* sh/sh.c (regs_used, mark_use): Likewise.
* vax/vax.c (vax_rtx_cost): Likewise.
From-SVN: r28784
1999-08-21 01:05:25 +02:00
|
|
|
|
const char *prefix;
|
1994-10-27 18:05:04 +01:00
|
|
|
|
|
1997-10-17 17:40:52 +02:00
|
|
|
|
if (! f)
|
|
|
|
|
f = stderr;
|
1994-10-27 18:05:04 +01:00
|
|
|
|
for (r = 0; r < n_reloads; r++)
|
|
|
|
|
{
|
1997-10-17 17:40:52 +02:00
|
|
|
|
fprintf (f, "Reload %d: ", r);
|
1994-10-27 18:05:04 +01:00
|
|
|
|
|
1999-09-12 16:54:56 +02:00
|
|
|
|
if (rld[r].in != 0)
|
1994-10-27 18:05:04 +01:00
|
|
|
|
{
|
1997-10-17 17:40:52 +02:00
|
|
|
|
fprintf (f, "reload_in (%s) = ",
|
1999-09-12 16:54:56 +02:00
|
|
|
|
GET_MODE_NAME (rld[r].inmode));
|
|
|
|
|
print_inline_rtx (f, rld[r].in, 24);
|
1997-10-17 17:40:52 +02:00
|
|
|
|
fprintf (f, "\n\t");
|
1994-10-27 18:05:04 +01:00
|
|
|
|
}
|
|
|
|
|
|
1999-09-12 16:54:56 +02:00
|
|
|
|
if (rld[r].out != 0)
|
1994-10-27 18:05:04 +01:00
|
|
|
|
{
|
1997-10-17 17:40:52 +02:00
|
|
|
|
fprintf (f, "reload_out (%s) = ",
|
1999-09-12 16:54:56 +02:00
|
|
|
|
GET_MODE_NAME (rld[r].outmode));
|
|
|
|
|
print_inline_rtx (f, rld[r].out, 24);
|
1997-10-17 17:40:52 +02:00
|
|
|
|
fprintf (f, "\n\t");
|
1994-10-27 18:05:04 +01:00
|
|
|
|
}
|
|
|
|
|
|
1999-09-12 16:54:56 +02:00
|
|
|
|
fprintf (f, "%s, ", reg_class_names[(int) rld[r].class]);
|
1994-10-27 18:05:04 +01:00
|
|
|
|
|
1997-10-17 17:40:52 +02:00
|
|
|
|
fprintf (f, "%s (opnum = %d)",
|
1999-09-12 16:54:56 +02:00
|
|
|
|
reload_when_needed_name[(int) rld[r].when_needed],
|
|
|
|
|
rld[r].opnum);
|
1994-10-27 18:05:04 +01:00
|
|
|
|
|
1999-09-12 16:54:56 +02:00
|
|
|
|
if (rld[r].optional)
|
1997-10-17 17:40:52 +02:00
|
|
|
|
fprintf (f, ", optional");
|
1994-10-27 18:05:04 +01:00
|
|
|
|
|
1999-09-12 16:54:56 +02:00
|
|
|
|
if (rld[r].nongroup)
|
2000-09-14 18:46:10 +02:00
|
|
|
|
fprintf (f, ", nongroup");
|
1998-05-06 01:18:02 +02:00
|
|
|
|
|
1999-09-12 16:54:56 +02:00
|
|
|
|
if (rld[r].inc != 0)
|
|
|
|
|
fprintf (f, ", inc by %d", rld[r].inc);
|
1994-10-27 18:05:04 +01:00
|
|
|
|
|
1999-09-12 16:54:56 +02:00
|
|
|
|
if (rld[r].nocombine)
|
1997-10-17 17:40:52 +02:00
|
|
|
|
fprintf (f, ", can't combine");
|
1994-10-27 18:05:04 +01:00
|
|
|
|
|
1999-09-12 16:54:56 +02:00
|
|
|
|
if (rld[r].secondary_p)
|
1997-10-17 17:40:52 +02:00
|
|
|
|
fprintf (f, ", secondary_reload_p");
|
1994-10-27 18:05:04 +01:00
|
|
|
|
|
1999-09-12 16:54:56 +02:00
|
|
|
|
if (rld[r].in_reg != 0)
|
1994-10-27 18:05:04 +01:00
|
|
|
|
{
|
1997-10-17 17:40:52 +02:00
|
|
|
|
fprintf (f, "\n\treload_in_reg: ");
|
1999-09-12 16:54:56 +02:00
|
|
|
|
print_inline_rtx (f, rld[r].in_reg, 24);
|
1994-10-27 18:05:04 +01:00
|
|
|
|
}
|
|
|
|
|
|
1999-09-12 16:54:56 +02:00
|
|
|
|
if (rld[r].out_reg != 0)
|
Fix consistency problems with reg_equiv_{mem,address};
Improve reload inheritance;
* reload.c (reload_out_reg): New variable.
(loc_mentioned_in_p, remove_address_replacements): New functions.
(remove_replacements): Deleted.
(push_reload): Set reload_out_reg[i].
When merging, also set reload_{in,out}_reg[i], and remove
duplicate address reloads.
(combine_reloads): Copy reload_out_reg[i].
(find_reloads): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
Include *recog_operand_loc in commutativity operand changes.
Generate optional output reloads.
Delete reference to n_memlocs. Don't set *recog_operand_loc before
processing operands. Call make_memloc in reg_equiv_address code.
Set *recog_operand_loc only after processing operands, and only
if replace is true. Return a value.
When changing address reload types for operands that didn't get
reloaded, use RELOAD_FOR_OPADDR_ADDRESS for
RELOAD_FOR_INPADDR_ADDRESS / RELOAD_FOR_OUTADDR_ADDRESS reloads.
Don't emit USEs for pseudo SUBREGs when not replacing.
(find_reloads_address): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
(find_reloads_toplev): Likewise.
Call make_memloc in reg_equiv_address code.
(debug_reload_to_stream): Add code to output reload_out_reg.
(make_memloc): Delete local variable i, ifdefed out code, and
references to memlocs and n_memlocs.
(memlocs, n_memlocs): Delete.
(push_secondary_reload): Clear reload_out_reg.
(find_reloads_address_1): Provide memrefloc argument to all calls
to find_reloads_address.
In AUTO_INC code, handle non-directly addressable equivalences properly.
* reload.h (reload_out_reg, num_not_at_initial_offset): Declare.
(find_reloads): Add return type.
(remove_address_replacements, deallocate_reload_reg): Declare.
* reload1.c (num_not_at_initial_offset): No longer static.
(delete_address_reloads, delete_address_reloads_1): Likewise.
(deallocate_reload_reg): New function.
(spill_reg_stored_to): New array.
(eliminate_regs): Don't substitute from reg_equiv_memory_loc.
(eliminate_regs_in_insn): Move assignments of previous_offset and
max_offset fields, and recalculation of num_not_at_initial_offset
into new static function:
(update_eliminable_offsets) .
(reload_as_needed): Call update_eliminable_offsetss after calling
find_reloads.
Call forget_old_reloads_1 with contents of reloaded auto_inc
expressions if the actual addressing can't be changed to match the
auto_inc.
(choose_reload_regs): For inheritance, replace
reload_reg_free_before_p test with reload_reg_ions.
(emit_reload_insns): If reload_in is a MEM, set OLD to
reload_in_reg[j].
Don't reload directly from oldequiv; if it's a pseudo with a
stack slot, use reload_in[j].
Check that reload_in_reg[j] is a MEM before replacing reload_in
from reg_reloaded_contents.
Include non-spill registers in reload inheritance processing.
Also try to use reload_out_reg to set spill_reg_store /
reg_last_reload_reg.
In code to set new_spill_reg_store, use single_set to find out if
there is a single set.
Add code that allows to delete optional output reloads.
Add code to allow deletion of output reloads that use no spill reg.
At the end, set reload_override_in to oldequiv.
Also call delete_output_reload if reload_out_reg is equal to old
in oldequiv code.
Add code to call delete_output_reload for stores with no matching load.
Set / use spill_reg_stored_to.
Handle case where secondary output reload uses a temporary, but
actual store isn't found.
When looking for a store of a value not loaded in order to call
delete_output_reload, count_occurences should return 0 for no
loads; but discount inherited input reloadill_reg_stored_to.
Do checks for extra uses of REG. Changed all
callers.
Use delete_address_reloads.
(reload): Take return value of find_reloads into account.
If a no-op set needs more than one reload, delete it.
(reload_reg_free_before_p): RELOAD_FOR_INPUT
can ignore RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS
for the same operand.
(clear_reload_reg_in_use): Check for other reloads that keep a
register in use.
(reload_reg_free_for_value_p): handle RELOAD_FOR_OPERAND_ADDRESS /
RELOAD_FOR_OPADDR_ADDR.
Take into account when an address address reload is only needed
for the address reload we are considering.
(count_occurrences): Use rtx_equal_p for MEMs.
(inc_for_reload): Return instruction that stores into RELOADREG.
New argument two, IN, and rtx. Changed all callers.
(calculate_needs_all_insns, reload_as_needed):
Don't clear after_call for a CLOBBER.
Keep track of how many hard registers need to be copied from
after_call, and don't clear after_call before we have seen
that much copies, or we see a different instruction.
From-SVN: r23143
1998-10-16 21:54:38 +02:00
|
|
|
|
{
|
|
|
|
|
fprintf (f, "\n\treload_out_reg: ");
|
1999-09-12 16:54:56 +02:00
|
|
|
|
print_inline_rtx (f, rld[r].out_reg, 24);
|
Fix consistency problems with reg_equiv_{mem,address};
Improve reload inheritance;
* reload.c (reload_out_reg): New variable.
(loc_mentioned_in_p, remove_address_replacements): New functions.
(remove_replacements): Deleted.
(push_reload): Set reload_out_reg[i].
When merging, also set reload_{in,out}_reg[i], and remove
duplicate address reloads.
(combine_reloads): Copy reload_out_reg[i].
(find_reloads): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
Include *recog_operand_loc in commutativity operand changes.
Generate optional output reloads.
Delete reference to n_memlocs. Don't set *recog_operand_loc before
processing operands. Call make_memloc in reg_equiv_address code.
Set *recog_operand_loc only after processing operands, and only
if replace is true. Return a value.
When changing address reload types for operands that didn't get
reloaded, use RELOAD_FOR_OPADDR_ADDRESS for
RELOAD_FOR_INPADDR_ADDRESS / RELOAD_FOR_OUTADDR_ADDRESS reloads.
Don't emit USEs for pseudo SUBREGs when not replacing.
(find_reloads_address): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
(find_reloads_toplev): Likewise.
Call make_memloc in reg_equiv_address code.
(debug_reload_to_stream): Add code to output reload_out_reg.
(make_memloc): Delete local variable i, ifdefed out code, and
references to memlocs and n_memlocs.
(memlocs, n_memlocs): Delete.
(push_secondary_reload): Clear reload_out_reg.
(find_reloads_address_1): Provide memrefloc argument to all calls
to find_reloads_address.
In AUTO_INC code, handle non-directly addressable equivalences properly.
* reload.h (reload_out_reg, num_not_at_initial_offset): Declare.
(find_reloads): Add return type.
(remove_address_replacements, deallocate_reload_reg): Declare.
* reload1.c (num_not_at_initial_offset): No longer static.
(delete_address_reloads, delete_address_reloads_1): Likewise.
(deallocate_reload_reg): New function.
(spill_reg_stored_to): New array.
(eliminate_regs): Don't substitute from reg_equiv_memory_loc.
(eliminate_regs_in_insn): Move assignments of previous_offset and
max_offset fields, and recalculation of num_not_at_initial_offset
into new static function:
(update_eliminable_offsets) .
(reload_as_needed): Call update_eliminable_offsetss after calling
find_reloads.
Call forget_old_reloads_1 with contents of reloaded auto_inc
expressions if the actual addressing can't be changed to match the
auto_inc.
(choose_reload_regs): For inheritance, replace
reload_reg_free_before_p test with reload_reg_ions.
(emit_reload_insns): If reload_in is a MEM, set OLD to
reload_in_reg[j].
Don't reload directly from oldequiv; if it's a pseudo with a
stack slot, use reload_in[j].
Check that reload_in_reg[j] is a MEM before replacing reload_in
from reg_reloaded_contents.
Include non-spill registers in reload inheritance processing.
Also try to use reload_out_reg to set spill_reg_store /
reg_last_reload_reg.
In code to set new_spill_reg_store, use single_set to find out if
there is a single set.
Add code that allows to delete optional output reloads.
Add code to allow deletion of output reloads that use no spill reg.
At the end, set reload_override_in to oldequiv.
Also call delete_output_reload if reload_out_reg is equal to old
in oldequiv code.
Add code to call delete_output_reload for stores with no matching load.
Set / use spill_reg_stored_to.
Handle case where secondary output reload uses a temporary, but
actual store isn't found.
When looking for a store of a value not loaded in order to call
delete_output_reload, count_occurences should return 0 for no
loads; but discount inherited input reloadill_reg_stored_to.
Do checks for extra uses of REG. Changed all
callers.
Use delete_address_reloads.
(reload): Take return value of find_reloads into account.
If a no-op set needs more than one reload, delete it.
(reload_reg_free_before_p): RELOAD_FOR_INPUT
can ignore RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS
for the same operand.
(clear_reload_reg_in_use): Check for other reloads that keep a
register in use.
(reload_reg_free_for_value_p): handle RELOAD_FOR_OPERAND_ADDRESS /
RELOAD_FOR_OPADDR_ADDR.
Take into account when an address address reload is only needed
for the address reload we are considering.
(count_occurrences): Use rtx_equal_p for MEMs.
(inc_for_reload): Return instruction that stores into RELOADREG.
New argument two, IN, and rtx. Changed all callers.
(calculate_needs_all_insns, reload_as_needed):
Don't clear after_call for a CLOBBER.
Keep track of how many hard registers need to be copied from
after_call, and don't clear after_call before we have seen
that much copies, or we see a different instruction.
From-SVN: r23143
1998-10-16 21:54:38 +02:00
|
|
|
|
}
|
|
|
|
|
|
1999-09-12 16:54:56 +02:00
|
|
|
|
if (rld[r].reg_rtx != 0)
|
1994-10-27 18:05:04 +01:00
|
|
|
|
{
|
1997-10-17 17:40:52 +02:00
|
|
|
|
fprintf (f, "\n\treload_reg_rtx: ");
|
1999-09-12 16:54:56 +02:00
|
|
|
|
print_inline_rtx (f, rld[r].reg_rtx, 24);
|
1994-10-27 18:05:04 +01:00
|
|
|
|
}
|
|
|
|
|
|
1997-08-02 23:29:22 +02:00
|
|
|
|
prefix = "\n\t";
|
1999-09-12 16:54:56 +02:00
|
|
|
|
if (rld[r].secondary_in_reload != -1)
|
1994-10-27 18:05:04 +01:00
|
|
|
|
{
|
1997-10-17 17:40:52 +02:00
|
|
|
|
fprintf (f, "%ssecondary_in_reload = %d",
|
1999-09-12 16:54:56 +02:00
|
|
|
|
prefix, rld[r].secondary_in_reload);
|
1997-08-02 23:29:22 +02:00
|
|
|
|
prefix = ", ";
|
1994-10-27 18:05:04 +01:00
|
|
|
|
}
|
|
|
|
|
|
1999-09-12 16:54:56 +02:00
|
|
|
|
if (rld[r].secondary_out_reload != -1)
|
1997-10-17 17:40:52 +02:00
|
|
|
|
fprintf (f, "%ssecondary_out_reload = %d\n",
|
1999-09-12 16:54:56 +02:00
|
|
|
|
prefix, rld[r].secondary_out_reload);
|
1994-10-27 18:05:04 +01:00
|
|
|
|
|
1997-08-02 23:29:22 +02:00
|
|
|
|
prefix = "\n\t";
|
1999-09-12 16:54:56 +02:00
|
|
|
|
if (rld[r].secondary_in_icode != CODE_FOR_nothing)
|
1994-10-27 18:05:04 +01:00
|
|
|
|
{
|
2000-09-14 18:46:10 +02:00
|
|
|
|
fprintf (f, "%ssecondary_in_icode = %s", prefix,
|
1999-09-12 16:54:56 +02:00
|
|
|
|
insn_data[rld[r].secondary_in_icode].name);
|
1997-08-02 23:29:22 +02:00
|
|
|
|
prefix = ", ";
|
1994-10-27 18:05:04 +01:00
|
|
|
|
}
|
|
|
|
|
|
1999-09-12 16:54:56 +02:00
|
|
|
|
if (rld[r].secondary_out_icode != CODE_FOR_nothing)
|
2000-09-14 18:46:10 +02:00
|
|
|
|
fprintf (f, "%ssecondary_out_icode = %s", prefix,
|
1999-09-12 16:54:56 +02:00
|
|
|
|
insn_data[rld[r].secondary_out_icode].name);
|
1994-10-27 18:05:04 +01:00
|
|
|
|
|
1997-10-17 17:40:52 +02:00
|
|
|
|
fprintf (f, "\n");
|
1994-10-27 18:05:04 +01:00
|
|
|
|
}
|
|
|
|
|
}
|
1997-10-17 17:40:52 +02:00
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
debug_reload ()
|
|
|
|
|
{
|
|
|
|
|
debug_reload_to_stream (stderr);
|
|
|
|
|
}
|