2001-06-29 00:11:19 +02:00
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|
|
/* Form lists of pseudo register references for autoinc optimization
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for GNU compiler. This is part of flow optimization.
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Copyright (C) 1999, 2000, 2001 Free Software Foundation, Inc.
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Contributed by Michael P. Hayes (m.hayes@elec.canterbury.ac.nz)
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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
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|
|
This file is part of GCC.
|
2001-06-29 00:11:19 +02:00
|
|
|
|
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
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GCC is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 2, or (at your option) any later
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version.
|
2001-06-29 00:11:19 +02:00
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|
|
|
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
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GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
|
2001-06-29 00:11:19 +02:00
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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
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along with GCC; see the file COPYING. If not, write to the Free
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Software Foundation, 59 Temple Place - Suite 330, Boston, MA
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02111-1307, USA. */
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2001-06-29 00:11:19 +02:00
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#define DF_RD 1 /* Reaching definitions. */
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#define DF_RU 2 /* Reaching uses. */
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#define DF_LR 4 /* Live registers. */
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#define DF_DU_CHAIN 8 /* Def-use chain. */
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#define DF_UD_CHAIN 16 /* Use-def chain. */
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#define DF_REG_INFO 32 /* Register info. */
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#define DF_RD_CHAIN 64 /* Reg-def chain. */
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#define DF_RU_CHAIN 128 /* Reg-use chain. */
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#define DF_ALL 255
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#define DF_HARD_REGS 1024
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2001-10-30 12:13:49 +01:00
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#define DF_EQUIV_NOTES 2048 /* Mark uses present in EQUIV/EQUAL notes. */
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2001-06-29 00:11:19 +02:00
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enum df_ref_type {DF_REF_REG_DEF, DF_REF_REG_USE, DF_REF_REG_MEM_LOAD,
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DF_REF_REG_MEM_STORE};
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#define DF_REF_TYPE_NAMES {"def", "use", "mem load", "mem store"}
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/* ???> Perhaps all these data structures should be made private
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to enforce the interface. */
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/* Link on a def-use or use-def chain. */
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struct df_link
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{
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struct df_link *next;
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struct ref *ref;
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};
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/* Define a register reference structure. */
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struct ref
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{
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rtx reg; /* The register referenced. */
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basic_block bb; /* BB containing ref. */
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rtx insn; /* Insn containing ref. */
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rtx *loc; /* Loc is the location of the reg. */
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struct df_link *chain; /* Head of def-use or use-def chain. */
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enum df_ref_type type; /* Type of ref. */
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int id; /* Ref index. */
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};
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/* One of these structures is allocated for every insn. */
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struct insn_info
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{
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struct df_link *defs; /* Head of insn-def chain. */
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struct df_link *uses; /* Head of insn-use chain. */
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/* ???? The following luid field should be considerd private so that
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ChangeLog.0, [...]: Fix spelling errors.
* ChangeLog.0, ChangeLog.1, ChangeLog.2, ChangeLog.3, ChangeLog.4,
ChangeLog.5, ChangeLog, ChangeLog.lib, FSFChangeLog.10, ONEWS,
c-common.c, caller-save.c, cfg.c, cfgcleanup.c, cfgrtl.c,
collect2.c, df.h, diagnostic.h, final.c, gcse.c, gthr.h,
haifa-sched.c, jump.c, local-alloc.c, profile.c, protoize.c,
regmove.c, reload1.c, rtlanal.c, sched-vis.c, ssa.c, stmt.c,
system.h, toplev.c: Fix spelling errors.
From-SVN: r46580
2001-10-28 13:42:06 +01:00
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we can change it on the fly to accommodate new insns? */
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2001-06-29 00:11:19 +02:00
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int luid; /* Logical UID. */
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#if 0
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rtx insn; /* Backpointer to the insn. */
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#endif
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};
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/* One of these structures is allocated for every reg. */
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struct reg_info
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{
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struct df_link *defs; /* Head of reg-def chain. */
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struct df_link *uses; /* Head of reg-use chain. */
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int lifetime;
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int n_defs;
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int n_uses;
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};
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/* One of these structures is allocated for every basic block. */
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struct bb_info
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{
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/* Reaching def bitmaps have def_id elements. */
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bitmap rd_kill;
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bitmap rd_gen;
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bitmap rd_in;
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bitmap rd_out;
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/* Reaching use bitmaps have use_id elements. */
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bitmap ru_kill;
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bitmap ru_gen;
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bitmap ru_in;
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bitmap ru_out;
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|
/* Live variable bitmaps have n_regs elements. */
|
|
|
|
bitmap lr_def;
|
|
|
|
bitmap lr_use;
|
|
|
|
bitmap lr_in;
|
|
|
|
bitmap lr_out;
|
|
|
|
int rd_valid;
|
|
|
|
int ru_valid;
|
|
|
|
int lr_valid;
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
struct df
|
|
|
|
{
|
|
|
|
int flags; /* Indicates what's recorded. */
|
|
|
|
struct bb_info *bbs; /* Basic block table. */
|
|
|
|
struct ref **defs; /* Def table, indexed by def_id. */
|
|
|
|
struct ref **uses; /* Use table, indexed by use_id. */
|
|
|
|
struct ref **reg_def_last; /* Indexed by regno. */
|
|
|
|
struct reg_info *regs; /* Regs table, index by regno. */
|
|
|
|
unsigned int reg_size; /* Size of regs table. */
|
|
|
|
struct insn_info *insns; /* Insn table, indexed by insn UID. */
|
|
|
|
unsigned int insn_size; /* Size of insn table. */
|
|
|
|
unsigned int def_id; /* Next def ID. */
|
|
|
|
unsigned int def_size; /* Size of def table. */
|
|
|
|
unsigned int n_defs; /* Size of def bitmaps. */
|
|
|
|
unsigned int use_id; /* Next use ID. */
|
|
|
|
unsigned int use_size; /* Size of use table. */
|
|
|
|
unsigned int n_uses; /* Size of use bitmaps. */
|
|
|
|
unsigned int n_bbs; /* Number of basic blocks. */
|
|
|
|
unsigned int n_regs; /* Number of regs. */
|
|
|
|
unsigned int def_id_save; /* Saved next def ID. */
|
|
|
|
unsigned int use_id_save; /* Saved next use ID. */
|
|
|
|
bitmap insns_modified; /* Insns that (may) have changed. */
|
|
|
|
bitmap bbs_modified; /* Blocks that (may) have changed. */
|
|
|
|
bitmap all_blocks; /* All blocks in CFG. */
|
|
|
|
/* The bitmap vector of dominators or NULL if not computed.
|
|
|
|
Ideally, this should be a pointer to a CFG object. */
|
|
|
|
bitmap *dom;
|
|
|
|
int * dfs_order;
|
|
|
|
int * rc_order;
|
2001-08-29 01:43:23 +02:00
|
|
|
int * rts_order;
|
2001-06-29 00:11:19 +02:00
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
struct df_map
|
|
|
|
{
|
|
|
|
rtx old;
|
|
|
|
rtx new;
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
#define DF_BB_INFO(REFS, BB) (&REFS->bbs[(BB)->index])
|
|
|
|
|
|
|
|
|
|
|
|
/* Macros to access the elements within the ref structure. */
|
|
|
|
#define DF_REF_REAL_REG(REF) (GET_CODE ((REF)->reg) == SUBREG \
|
|
|
|
? SUBREG_REG ((REF)->reg) : ((REF)->reg))
|
|
|
|
#define DF_REF_REGNO(REF) REGNO (DF_REF_REAL_REG (REF))
|
|
|
|
#define DF_REF_REAL_LOC(REF) (GET_CODE ((REF)->reg) == SUBREG \
|
|
|
|
? &SUBREG_REG ((REF)->reg) : ((REF)->loc))
|
|
|
|
#ifdef OLD_DF_INTERFACE
|
|
|
|
#define DF_REF_REG(REF) DF_REF_REAL_REG(REF)
|
|
|
|
#define DF_REF_LOC(REF) DF_REF_REAL_LOC(REF)
|
|
|
|
#else
|
|
|
|
#define DF_REF_REG(REF) ((REF)->reg)
|
|
|
|
#define DF_REF_LOC(REF) ((REF)->loc)
|
|
|
|
#endif
|
|
|
|
#define DF_REF_BB(REF) ((REF)->bb)
|
|
|
|
#define DF_REF_BBNO(REF) ((REF)->bb->index)
|
|
|
|
#define DF_REF_INSN(REF) ((REF)->insn)
|
|
|
|
#define DF_REF_INSN_UID(REF) (INSN_UID ((REF)->insn))
|
|
|
|
#define DF_REF_TYPE(REF) ((REF)->type)
|
|
|
|
#define DF_REF_CHAIN(REF) ((REF)->chain)
|
|
|
|
#define DF_REF_ID(REF) ((REF)->id)
|
|
|
|
|
|
|
|
/* Macros to determine the reference type. */
|
|
|
|
|
|
|
|
#define DF_REF_REG_DEF_P(REF) (DF_REF_TYPE (REF) == DF_REF_REG_DEF)
|
|
|
|
#define DF_REF_REG_USE_P(REF) ((REF) && ! DF_REF_REG_DEF_P (REF))
|
|
|
|
#define DF_REF_REG_MEM_STORE_P(REF) (DF_REF_TYPE (REF) == DF_REF_REG_MEM_STORE)
|
|
|
|
#define DF_REF_REG_MEM_LOAD_P(REF) (DF_REF_TYPE (REF) == DF_REF_REG_MEM_LOAD)
|
|
|
|
#define DF_REF_REG_MEM_P(REF) (DF_REF_REG_MEM_STORE_P (REF) \
|
|
|
|
|| DF_REF_REG_MEM_LOAD_P (REF))
|
|
|
|
|
|
|
|
|
|
|
|
/* Macros to access the elements within the reg_info structure table. */
|
|
|
|
|
|
|
|
#define DF_REGNO_FIRST_DEF(DF, REGNUM) \
|
|
|
|
((DF)->regs[REGNUM].defs ? (DF)->regs[REGNUM].defs->ref : 0)
|
|
|
|
#define DF_REGNO_LAST_USE(DF, REGNUM) \
|
|
|
|
((DF)->regs[REGNUM].uses ? (DF)->regs[REGNUM].uses->ref : 0)
|
|
|
|
|
|
|
|
#define DF_REGNO_FIRST_BB(DF, REGNUM) \
|
|
|
|
(DF_REGNO_FIRST_DEF (DF, REGNUM) \
|
|
|
|
? DF_REF_BB (DF_REGNO_FIRST_DEF (DF, REGNUM)) : 0)
|
|
|
|
#define DF_REGNO_LAST_BB(DF, REGNUM) \
|
|
|
|
(DF_REGNO_LAST_USE (DF, REGNUM) \
|
|
|
|
? DF_REF_BB (DF_REGNO_LAST_USE (DF, REGNUM)) : 0)
|
|
|
|
|
|
|
|
|
|
|
|
/* Macros to access the elements within the insn_info structure table. */
|
|
|
|
|
|
|
|
#define DF_INSN_LUID(DF, INSN) ((DF)->insns[INSN_UID (INSN)].luid)
|
|
|
|
#define DF_INSN_DEFS(DF, INSN) ((DF)->insns[INSN_UID (INSN)].defs)
|
|
|
|
#define DF_INSN_USES(DF, INSN) ((DF)->insns[INSN_UID (INSN)].uses)
|
|
|
|
|
|
|
|
|
|
|
|
/* Functions to build and analyse dataflow information. */
|
|
|
|
|
|
|
|
extern struct df *df_init PARAMS ((void));
|
|
|
|
|
|
|
|
extern int df_analyse PARAMS ((struct df *, bitmap, int));
|
|
|
|
|
|
|
|
extern void df_finish PARAMS ((struct df *));
|
|
|
|
|
|
|
|
extern void df_dump PARAMS ((struct df *, int, FILE *));
|
|
|
|
|
|
|
|
/* Functions to modify insns. */
|
|
|
|
|
|
|
|
extern void df_insn_modify PARAMS ((struct df *, basic_block, rtx));
|
|
|
|
|
|
|
|
extern rtx df_insn_delete PARAMS ((struct df *, basic_block, rtx));
|
|
|
|
|
|
|
|
extern rtx df_pattern_emit_before PARAMS ((struct df *, rtx,
|
|
|
|
basic_block, rtx));
|
|
|
|
|
|
|
|
extern rtx df_jump_pattern_emit_after PARAMS ((struct df *, rtx,
|
|
|
|
basic_block, rtx));
|
|
|
|
|
|
|
|
extern rtx df_pattern_emit_after PARAMS ((struct df *, rtx,
|
|
|
|
basic_block, rtx));
|
|
|
|
|
|
|
|
extern rtx df_insn_move_before PARAMS ((struct df *, basic_block, rtx,
|
|
|
|
basic_block, rtx));
|
|
|
|
|
|
|
|
extern int df_reg_replace PARAMS ((struct df *, bitmap, rtx, rtx));
|
|
|
|
|
|
|
|
extern int df_ref_reg_replace PARAMS ((struct df *, struct ref *, rtx, rtx));
|
|
|
|
|
|
|
|
extern int df_ref_remove PARAMS ((struct df *, struct ref *));
|
|
|
|
|
|
|
|
extern int df_insn_reg_replace PARAMS ((struct df *, basic_block,
|
|
|
|
rtx, rtx, rtx));
|
|
|
|
|
|
|
|
extern int df_insn_mem_replace PARAMS ((struct df *, basic_block,
|
|
|
|
rtx, rtx, rtx));
|
|
|
|
|
|
|
|
extern struct ref *df_bb_def_use_swap PARAMS ((struct df *, basic_block,
|
|
|
|
rtx, rtx, unsigned int));
|
|
|
|
|
|
|
|
|
|
|
|
/* Functions to query dataflow information. */
|
|
|
|
|
|
|
|
extern basic_block df_regno_bb PARAMS((struct df *, unsigned int));
|
|
|
|
|
|
|
|
extern int df_reg_lifetime PARAMS ((struct df *, rtx));
|
|
|
|
|
|
|
|
extern int df_reg_global_p PARAMS ((struct df *, rtx));
|
|
|
|
|
|
|
|
extern int df_insn_regno_def_p PARAMS ((struct df *,
|
|
|
|
basic_block, rtx, unsigned int));
|
|
|
|
|
|
|
|
extern int df_insn_dominates_all_uses_p PARAMS ((struct df *,
|
|
|
|
basic_block, rtx));
|
|
|
|
|
|
|
|
extern int df_insn_dominates_uses_p PARAMS ((struct df *, basic_block,
|
|
|
|
rtx, bitmap));
|
|
|
|
|
|
|
|
extern int df_bb_reg_live_start_p PARAMS ((struct df *, basic_block, rtx));
|
|
|
|
|
|
|
|
extern int df_bb_reg_live_end_p PARAMS ((struct df *, basic_block, rtx));
|
|
|
|
|
|
|
|
extern int df_bb_regs_lives_compare PARAMS ((struct df *, basic_block,
|
|
|
|
rtx, rtx));
|
|
|
|
|
|
|
|
extern rtx df_bb_single_def_use_insn_find PARAMS((struct df *, basic_block,
|
|
|
|
rtx, rtx));
|
|
|
|
|
|
|
|
|
|
|
|
/* Functions for debugging from GDB. */
|
|
|
|
|
|
|
|
extern void debug_df_insn PARAMS ((rtx));
|
|
|
|
|
|
|
|
extern void debug_df_regno PARAMS ((unsigned int));
|
|
|
|
|
|
|
|
extern void debug_df_reg PARAMS ((rtx));
|
|
|
|
|
|
|
|
extern void debug_df_defno PARAMS ((unsigned int));
|
|
|
|
|
|
|
|
extern void debug_df_useno PARAMS ((unsigned int));
|
|
|
|
|
|
|
|
extern void debug_df_ref PARAMS ((struct ref *));
|
|
|
|
|
|
|
|
extern void debug_df_chain PARAMS ((struct df_link *));
|
|
|
|
extern void df_insn_debug PARAMS ((struct df *, rtx, FILE *));
|
|
|
|
extern void df_insn_debug_regno PARAMS ((struct df *, rtx, FILE *));
|