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c-decl.c (mark_binding_level): Use 'for' instead of `while'. * c-decl.c (mark_binding_level): Use 'for' instead of `while'. * conflict.c: Minor cleanups. * optabs.c: Add blank line * simplify-rtx.c: From-SVN: r33226
2000-04-18 20:14:10 +02:00
/* RTL simplification functions for GNU compiler.
Fix copyrights. From-SVN: r32179
2000-02-26 15:26:24 +01:00
Copyright (C) 1987, 1988, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
simplify-rtx.c (cfc_args): add "unordered" field. * simplify-rtx.c (cfc_args): add "unordered" field. (check_fold_consts): Set unordered field. (simplify_relational_operation): Simplify the unordered comparisons. * reg-stack.c (swap_rtx_condition): Ensure that the transformation is valid. * emit-rtl.c (try_split): Fix code to mark labels. * jump.c (mark_jump_label): Make global. * rtl.h (mark_jump_label): Declare. * predict.c (estimate_probability): Handle unordred comparisons. From-SVN: r38711
2001-01-05 16:34:39 +01:00
1999, 2000, 2001 Free Software Foundation, Inc.
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +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.
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +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.
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +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.
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +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. */
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
#include "config.h"
#include "system.h"
#include "rtl.h"
#include "tm_p.h"
#include "regs.h"
#include "hard-reg-set.h"
#include "flags.h"
#include "real.h"
#include "insn-config.h"
#include "recog.h"
#include "function.h"
#include "expr.h"
#include "toplev.h"
#include "output.h"
Add cselib; use it in loop and reload_cse_regs From-SVN: r32538
2000-03-14 19:36:18 +01:00
#include "ggc.h"
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
/* Simplification and canonicalization of RTL. */
/* Nonzero if X has the form (PLUS frame-pointer integer). We check for
virtual regs here because the simplify_*_operation routines are called
by integrate.c, which is called before virtual register instantiation.
?!? FIXED_BASE_PLUS_P and NONZERO_BASE_PLUS_P need to move into
a header file so that their definitions can be shared with the
simplification routines in simplify-rtx.c. Until then, do not
change these macros without also changing the copy in simplify-rtx.c. */
#define FIXED_BASE_PLUS_P(X) \
((X) == frame_pointer_rtx || (X) == hard_frame_pointer_rtx \
|| ((X) == arg_pointer_rtx && fixed_regs[ARG_POINTER_REGNUM])\
|| (X) == virtual_stack_vars_rtx \
|| (X) == virtual_incoming_args_rtx \
|| (GET_CODE (X) == PLUS && GET_CODE (XEXP (X, 1)) == CONST_INT \
&& (XEXP (X, 0) == frame_pointer_rtx \
|| XEXP (X, 0) == hard_frame_pointer_rtx \
|| ((X) == arg_pointer_rtx \
&& fixed_regs[ARG_POINTER_REGNUM]) \
|| XEXP (X, 0) == virtual_stack_vars_rtx \
|| XEXP (X, 0) == virtual_incoming_args_rtx)) \
|| GET_CODE (X) == ADDRESSOF)
/* Similar, but also allows reference to the stack pointer.
This used to include FIXED_BASE_PLUS_P, however, we can't assume that
arg_pointer_rtx by itself is nonzero, because on at least one machine,
the i960, the arg pointer is zero when it is unused. */
#define NONZERO_BASE_PLUS_P(X) \
((X) == frame_pointer_rtx || (X) == hard_frame_pointer_rtx \
|| (X) == virtual_stack_vars_rtx \
|| (X) == virtual_incoming_args_rtx \
|| (GET_CODE (X) == PLUS && GET_CODE (XEXP (X, 1)) == CONST_INT \
&& (XEXP (X, 0) == frame_pointer_rtx \
|| XEXP (X, 0) == hard_frame_pointer_rtx \
|| ((X) == arg_pointer_rtx \
&& fixed_regs[ARG_POINTER_REGNUM]) \
|| XEXP (X, 0) == virtual_stack_vars_rtx \
|| XEXP (X, 0) == virtual_incoming_args_rtx)) \
|| (X) == stack_pointer_rtx \
|| (X) == virtual_stack_dynamic_rtx \
|| (X) == virtual_outgoing_args_rtx \
|| (GET_CODE (X) == PLUS && GET_CODE (XEXP (X, 1)) == CONST_INT \
&& (XEXP (X, 0) == stack_pointer_rtx \
|| XEXP (X, 0) == virtual_stack_dynamic_rtx \
|| XEXP (X, 0) == virtual_outgoing_args_rtx)) \
|| GET_CODE (X) == ADDRESSOF)
simplify-rtx.c (SIGN_EXTEND): New macro. * simplify-rtx.c (SIGN_EXTEND): New macro. (simplify_unary_operation, simplify_binary_operation, simplify_relational_operation): Use SIGN_EXTEND. Make low halves of (low, high) pairs unsigned if they weren't already. (simplify_ternary_operation): Cast INTVAL to unsigned before comparing to a MODE_BITSIZE. From-SVN: r34109
2000-05-23 20:06:22 +02:00
/* Much code operates on (low, high) pairs; the low value is an
unsigned wide int, the high value a signed wide int. We
occasionally need to sign extend from low to high as if low were a
signed wide int. */
simplify-rtx.c: Rename macro SIGN_EXTEND to HWI_SIGN_EXTEND. * simplify-rtx.c: Rename macro SIGN_EXTEND to HWI_SIGN_EXTEND. All callers changed. From-SVN: r34141
2000-05-24 22:26:54 +02:00
#define HWI_SIGN_EXTEND(low) \
simplify-rtx.c (SIGN_EXTEND): New macro. * simplify-rtx.c (SIGN_EXTEND): New macro. (simplify_unary_operation, simplify_binary_operation, simplify_relational_operation): Use SIGN_EXTEND. Make low halves of (low, high) pairs unsigned if they weren't already. (simplify_ternary_operation): Cast INTVAL to unsigned before comparing to a MODE_BITSIZE. From-SVN: r34109
2000-05-23 20:06:22 +02:00
((((HOST_WIDE_INT) low) < 0) ? ((HOST_WIDE_INT) -1) : ((HOST_WIDE_INT) 0))
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
loop.c (record_giv): Avoid simplifying MULT to ASHIFT. * loop.c (record_giv): Avoid simplifying MULT to ASHIFT. (express_from_1): Wrap lines. * rtlanal.c (commutative_operand_precedence): Rename from operand_preference; export. * rtl.h: Declare it. * simplify-rtx.c (simplify_gen_binary): Tidy +/- const_int handling. (simplify_binary_operation): Invoke simplify_plus_minus on (CONST (PLUS ...)) as well. (struct simplify_plus_minus_op_data): New. (simplify_plus_minus_op_data_cmp): New. (simplify_plus_minus): Use them. Avoid infinite recursion with simplify_binary_operation wrt CONST. From-SVN: r45473
2001-09-07 20:14:32 +02:00
static int simplify_plus_minus_op_data_cmp PARAMS ((const void *,
const void *));
c-decl.c (mark_binding_level): Use 'for' instead of `while'. * c-decl.c (mark_binding_level): Use 'for' instead of `while'. * conflict.c: Minor cleanups. * optabs.c: Add blank line * simplify-rtx.c: From-SVN: r33226
2000-04-18 20:14:10 +02:00
static rtx simplify_plus_minus PARAMS ((enum rtx_code,
enum machine_mode, rtx, rtx));
static void check_fold_consts PARAMS ((PTR));
toplev.c (set_float_handler): Make static. * toplev.c (set_float_handler): Make static. * toplev.h: Don't prototype set_float_handler. * simplify-rtx.c: Don't include setjmp.h. (simplify_unary_real, simplify_binary_real, simplify_binary_is2orm1): New functions. (simplify_unary_operation, simplify_binary_operation): Use them, via do_float_handler. * fold-const.c: Don't include setjmp.h. (exact_real_inverse_1): New function. (exact_real_inverse): Use it, via do_float_handler. * varasm.c: Don't include setjmp.h. (assemble_real_1): New function. (assemble_real): Use it, via do_float_handler. Call internal_error if we get a trap here. * c-parse.in, cse.c, cselib.c, ch/lex.c, config/i386/i386.c, config/pj/pj.c, config/s390/s390.c: Don't include setjmp.h. * java/lex.h: Don't include setjmp.h. Don't define SET_FLOAT_HANDLER or prototype set_float_handler. From-SVN: r44815
2001-08-12 03:56:10 +02:00
#if ! defined (REAL_IS_NOT_DOUBLE) || defined (REAL_ARITHMETIC)
static void simplify_unary_real PARAMS ((PTR));
static void simplify_binary_real PARAMS ((PTR));
#endif
static void simplify_binary_is2orm1 PARAMS ((PTR));
c-decl.c (mark_binding_level): Use 'for' instead of `while'. * c-decl.c (mark_binding_level): Use 'for' instead of `while'. * conflict.c: Minor cleanups. * optabs.c: Add blank line * simplify-rtx.c: From-SVN: r33226
2000-04-18 20:14:10 +02:00
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
/* Make a binary operation by properly ordering the operands and
seeing if the expression folds. */
rtx
simplify_gen_binary (code, mode, op0, op1)
enum rtx_code code;
enum machine_mode mode;
rtx op0, op1;
{
rtx tem;
/* Put complex operands first and constants second if commutative. */
if (GET_RTX_CLASS (code) == 'c'
integrate.c (copy_rtx_and_substitute): Use simplify_gen_subreg. * integrate.c (copy_rtx_and_substitute): Use simplify_gen_subreg. (simplify_subreg): Handle complex types represented as CONCAT. * recog.c (validate_replace_rtx_1): Properly canonicalize expression * rtl.h (swap_commutative_operands_p): Declare. * rtlanal.c (swap_commutative_operands_p): New. (operand_preference): New static function. * combine.c (combine_simplify_rtx): Use swap_commutative_operands_p. (gen_binary): Likewise. * optabs.c (emit_cmp_and_jump_insns, emit_conditional_move): Likewise. * simplify-rtx.c (simplify_gen_binary, simplify_gen_relational): Likewise. From-SVN: r42224
2001-05-17 23:21:21 +02:00
&& swap_commutative_operands_p (op0, op1))
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
tem = op0, op0 = op1, op1 = tem;
/* If this simplifies, do it. */
tem = simplify_binary_operation (code, mode, op0, op1);
if (tem)
return tem;
/* Handle addition and subtraction of CONST_INT specially. Otherwise,
just form the operation. */
loop.c (record_giv): Avoid simplifying MULT to ASHIFT. * loop.c (record_giv): Avoid simplifying MULT to ASHIFT. (express_from_1): Wrap lines. * rtlanal.c (commutative_operand_precedence): Rename from operand_preference; export. * rtl.h: Declare it. * simplify-rtx.c (simplify_gen_binary): Tidy +/- const_int handling. (simplify_binary_operation): Invoke simplify_plus_minus on (CONST (PLUS ...)) as well. (struct simplify_plus_minus_op_data): New. (simplify_plus_minus_op_data_cmp): New. (simplify_plus_minus): Use them. Avoid infinite recursion with simplify_binary_operation wrt CONST. From-SVN: r45473
2001-09-07 20:14:32 +02:00
if (GET_CODE (op1) == CONST_INT
&& GET_MODE (op0) != VOIDmode
&& (code == PLUS || code == MINUS))
{
HOST_WIDE_INT value = INTVAL (op1);
if (code == MINUS)
value = -value;
return plus_constant (op0, value);
}
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
else
return gen_rtx_fmt_ee (code, mode, op0, op1);
}
simplify-rtx.c (avoid_constant_pool_reference): Coerce the retrieved constant into the expected mode. * simplify-rtx.c (avoid_constant_pool_reference): Coerce the retrieved constant into the expected mode. From-SVN: r44321
2001-07-25 01:43:55 +02:00
/* If X is a MEM referencing the constant pool, return the real value.
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
Otherwise return X. */
simplify-rtx.c (avoid_constant_pool_reference): Export. * simplify-rtx.c (avoid_constant_pool_reference): Export. * rtl.h (avoid_constant_pool_reference): Declare it. * dwarf2out.c (add_location_or_const_value_attribute): Use it. (add_const_value_attribute): Use add_AT_unsigned for unsigned values. From-SVN: r44411
2001-07-27 01:47:15 +02:00
rtx
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
avoid_constant_pool_reference (x)
rtx x;
{
simplify-rtx.c (avoid_constant_pool_reference): Coerce the retrieved constant into the expected mode. * simplify-rtx.c (avoid_constant_pool_reference): Coerce the retrieved constant into the expected mode. From-SVN: r44321
2001-07-25 01:43:55 +02:00
rtx c, addr;
enum machine_mode cmode;
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
if (GET_CODE (x) != MEM)
return x;
simplify-rtx.c (avoid_constant_pool_reference): Coerce the retrieved constant into the expected mode. * simplify-rtx.c (avoid_constant_pool_reference): Coerce the retrieved constant into the expected mode. From-SVN: r44321
2001-07-25 01:43:55 +02:00
addr = XEXP (x, 0);
if (GET_CODE (addr) != SYMBOL_REF
|| ! CONSTANT_POOL_ADDRESS_P (addr))
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
return x;
simplify-rtx.c (avoid_constant_pool_reference): Coerce the retrieved constant into the expected mode. * simplify-rtx.c (avoid_constant_pool_reference): Coerce the retrieved constant into the expected mode. From-SVN: r44321
2001-07-25 01:43:55 +02:00
c = get_pool_constant (addr);
cmode = get_pool_mode (addr);
/* If we're accessing the constant in a different mode than it was
originally stored, attempt to fix that up via subreg simplifications.
If that fails we have no choice but to return the original memory. */
if (cmode != GET_MODE (x))
{
c = simplify_subreg (GET_MODE (x), c, cmode, 0);
return c ? c : x;
}
return c;
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
}
rtlanal.c (find_reg_equal_equiv_note): New function. * rtlanal.c (find_reg_equal_equiv_note): New function. * simplify-rtx.c (simplify_gen_unary, simplify_gen_ternary): New fns. (simplify_gen_relational, simplify_replace_rtx): Likewise. * rtl.h: Add declarations for above functions. From-SVN: r39644
2001-02-13 21:43:13 +01:00
/* Make a unary operation by first seeing if it folds and otherwise making
the specified operation. */
rtx
simplify_gen_unary (code, mode, op, op_mode)
enum rtx_code code;
enum machine_mode mode;
rtx op;
enum machine_mode op_mode;
{
rtx tem;
/* If this simplifies, use it. */
if ((tem = simplify_unary_operation (code, mode, op, op_mode)) != 0)
return tem;
return gen_rtx_fmt_e (code, mode, op);
}
/* Likewise for ternary operations. */
rtx
simplify_gen_ternary (code, mode, op0_mode, op0, op1, op2)
enum rtx_code code;
enum machine_mode mode, op0_mode;
rtx op0, op1, op2;
{
rtx tem;
/* If this simplifies, use it. */
if (0 != (tem = simplify_ternary_operation (code, mode, op0_mode,
op0, op1, op2)))
return tem;
return gen_rtx_fmt_eee (code, mode, op0, op1, op2);
}
rtl.h (simplify_gen_relational): Add cmp_mode parameter. * rtl.h (simplify_gen_relational): Add cmp_mode parameter. * simplify-rtx.c (simplify_gen_relational): Likewise. * simplify-rtx.c (simplify_replace_rtx): Handle relationals and MEMs. * i386.h (VALID_SSE_REG_MODE): Accept MMX modes if SSE2 * i386.md (movsi_1, movdi2, movdi_1_rex64): Handle SSE2 moves. * i386.md (negsf2, negdf2, abssf2, absdf2): Force operands to registers in SSE case; fix handling of the immediates. (negsf2_ifs, abssf2_ifs): Tweak constraints; require operands to be in regsiters before reload. (negdf2_ifs, absdf2_ifs): Likewise; disable for 64bit (negdf2_ifs_rex64, absdf2_ifs_rtx64): New. (abstf,absxf,negtf,negxf splitters): Compute properly the regnum for x86_64. (avsdf2_if_rex64): New. From-SVN: r41664
2001-04-28 21:16:30 +02:00
/* Likewise, for relational operations.
CMP_MODE specifies mode comparison is done in.
*/
rtlanal.c (find_reg_equal_equiv_note): New function. * rtlanal.c (find_reg_equal_equiv_note): New function. * simplify-rtx.c (simplify_gen_unary, simplify_gen_ternary): New fns. (simplify_gen_relational, simplify_replace_rtx): Likewise. * rtl.h: Add declarations for above functions. From-SVN: r39644
2001-02-13 21:43:13 +01:00
rtx
rtl.h (simplify_gen_relational): Add cmp_mode parameter. * rtl.h (simplify_gen_relational): Add cmp_mode parameter. * simplify-rtx.c (simplify_gen_relational): Likewise. * simplify-rtx.c (simplify_replace_rtx): Handle relationals and MEMs. * i386.h (VALID_SSE_REG_MODE): Accept MMX modes if SSE2 * i386.md (movsi_1, movdi2, movdi_1_rex64): Handle SSE2 moves. * i386.md (negsf2, negdf2, abssf2, absdf2): Force operands to registers in SSE case; fix handling of the immediates. (negsf2_ifs, abssf2_ifs): Tweak constraints; require operands to be in regsiters before reload. (negdf2_ifs, absdf2_ifs): Likewise; disable for 64bit (negdf2_ifs_rex64, absdf2_ifs_rtx64): New. (abstf,absxf,negtf,negxf splitters): Compute properly the regnum for x86_64. (avsdf2_if_rex64): New. From-SVN: r41664
2001-04-28 21:16:30 +02:00
simplify_gen_relational (code, mode, cmp_mode, op0, op1)
rtlanal.c (find_reg_equal_equiv_note): New function. * rtlanal.c (find_reg_equal_equiv_note): New function. * simplify-rtx.c (simplify_gen_unary, simplify_gen_ternary): New fns. (simplify_gen_relational, simplify_replace_rtx): Likewise. * rtl.h: Add declarations for above functions. From-SVN: r39644
2001-02-13 21:43:13 +01:00
enum rtx_code code;
enum machine_mode mode;
rtl.h (simplify_gen_relational): Add cmp_mode parameter. * rtl.h (simplify_gen_relational): Add cmp_mode parameter. * simplify-rtx.c (simplify_gen_relational): Likewise. * simplify-rtx.c (simplify_replace_rtx): Handle relationals and MEMs. * i386.h (VALID_SSE_REG_MODE): Accept MMX modes if SSE2 * i386.md (movsi_1, movdi2, movdi_1_rex64): Handle SSE2 moves. * i386.md (negsf2, negdf2, abssf2, absdf2): Force operands to registers in SSE case; fix handling of the immediates. (negsf2_ifs, abssf2_ifs): Tweak constraints; require operands to be in regsiters before reload. (negdf2_ifs, absdf2_ifs): Likewise; disable for 64bit (negdf2_ifs_rex64, absdf2_ifs_rtx64): New. (abstf,absxf,negtf,negxf splitters): Compute properly the regnum for x86_64. (avsdf2_if_rex64): New. From-SVN: r41664
2001-04-28 21:16:30 +02:00
enum machine_mode cmp_mode;
rtlanal.c (find_reg_equal_equiv_note): New function. * rtlanal.c (find_reg_equal_equiv_note): New function. * simplify-rtx.c (simplify_gen_unary, simplify_gen_ternary): New fns. (simplify_gen_relational, simplify_replace_rtx): Likewise. * rtl.h: Add declarations for above functions. From-SVN: r39644
2001-02-13 21:43:13 +01:00
rtx op0, op1;
{
rtx tem;
rtl.h (simplify_gen_relational): Add cmp_mode parameter. * rtl.h (simplify_gen_relational): Add cmp_mode parameter. * simplify-rtx.c (simplify_gen_relational): Likewise. * simplify-rtx.c (simplify_replace_rtx): Handle relationals and MEMs. * i386.h (VALID_SSE_REG_MODE): Accept MMX modes if SSE2 * i386.md (movsi_1, movdi2, movdi_1_rex64): Handle SSE2 moves. * i386.md (negsf2, negdf2, abssf2, absdf2): Force operands to registers in SSE case; fix handling of the immediates. (negsf2_ifs, abssf2_ifs): Tweak constraints; require operands to be in regsiters before reload. (negdf2_ifs, absdf2_ifs): Likewise; disable for 64bit (negdf2_ifs_rex64, absdf2_ifs_rtx64): New. (abstf,absxf,negtf,negxf splitters): Compute properly the regnum for x86_64. (avsdf2_if_rex64): New. From-SVN: r41664
2001-04-28 21:16:30 +02:00
if ((tem = simplify_relational_operation (code, cmp_mode, op0, op1)) != 0)
rtlanal.c (find_reg_equal_equiv_note): New function. * rtlanal.c (find_reg_equal_equiv_note): New function. * simplify-rtx.c (simplify_gen_unary, simplify_gen_ternary): New fns. (simplify_gen_relational, simplify_replace_rtx): Likewise. * rtl.h: Add declarations for above functions. From-SVN: r39644
2001-02-13 21:43:13 +01:00
return tem;
/* Put complex operands first and constants second. */
integrate.c (copy_rtx_and_substitute): Use simplify_gen_subreg. * integrate.c (copy_rtx_and_substitute): Use simplify_gen_subreg. (simplify_subreg): Handle complex types represented as CONCAT. * recog.c (validate_replace_rtx_1): Properly canonicalize expression * rtl.h (swap_commutative_operands_p): Declare. * rtlanal.c (swap_commutative_operands_p): New. (operand_preference): New static function. * combine.c (combine_simplify_rtx): Use swap_commutative_operands_p. (gen_binary): Likewise. * optabs.c (emit_cmp_and_jump_insns, emit_conditional_move): Likewise. * simplify-rtx.c (simplify_gen_binary, simplify_gen_relational): Likewise. From-SVN: r42224
2001-05-17 23:21:21 +02:00
if (swap_commutative_operands_p (op0, op1))
rtlanal.c (find_reg_equal_equiv_note): New function. * rtlanal.c (find_reg_equal_equiv_note): New function. * simplify-rtx.c (simplify_gen_unary, simplify_gen_ternary): New fns. (simplify_gen_relational, simplify_replace_rtx): Likewise. * rtl.h: Add declarations for above functions. From-SVN: r39644
2001-02-13 21:43:13 +01:00
tem = op0, op0 = op1, op1 = tem, code = swap_condition (code);
return gen_rtx_fmt_ee (code, mode, op0, op1);
}
/* Replace all occurrences of OLD in X with NEW and try to simplify the
resulting RTX. Return a new RTX which is as simplified as possible. */
rtx
simplify_replace_rtx (x, old, new)
rtx x;
rtx old;
rtx new;
{
enum rtx_code code = GET_CODE (x);
enum machine_mode mode = GET_MODE (x);
/* If X is OLD, return NEW. Otherwise, if this is an expression, try
to build a new expression substituting recursively. If we can't do
anything, return our input. */
if (x == old)
return new;
switch (GET_RTX_CLASS (code))
{
case '1':
{
enum machine_mode op_mode = GET_MODE (XEXP (x, 0));
rtx op = (XEXP (x, 0) == old
? new : simplify_replace_rtx (XEXP (x, 0), old, new));
return simplify_gen_unary (code, mode, op, op_mode);
}
case '2':
case 'c':
return
simplify_gen_binary (code, mode,
simplify_replace_rtx (XEXP (x, 0), old, new),
simplify_replace_rtx (XEXP (x, 1), old, new));
rtl.h (simplify_gen_relational): Add cmp_mode parameter. * rtl.h (simplify_gen_relational): Add cmp_mode parameter. * simplify-rtx.c (simplify_gen_relational): Likewise. * simplify-rtx.c (simplify_replace_rtx): Handle relationals and MEMs. * i386.h (VALID_SSE_REG_MODE): Accept MMX modes if SSE2 * i386.md (movsi_1, movdi2, movdi_1_rex64): Handle SSE2 moves. * i386.md (negsf2, negdf2, abssf2, absdf2): Force operands to registers in SSE case; fix handling of the immediates. (negsf2_ifs, abssf2_ifs): Tweak constraints; require operands to be in regsiters before reload. (negdf2_ifs, absdf2_ifs): Likewise; disable for 64bit (negdf2_ifs_rex64, absdf2_ifs_rtx64): New. (abstf,absxf,negtf,negxf splitters): Compute properly the regnum for x86_64. (avsdf2_if_rex64): New. From-SVN: r41664
2001-04-28 21:16:30 +02:00
case '<':
simplify-rtx.c (simplify_replace_rtx): Try to obtain mode from old and new operands in `<', `3' and `b'. 2001-07-19 Alexandre Oliva <aoliva@redhat.com> * simplify-rtx.c (simplify_replace_rtx): Try to obtain mode from old and new operands in `<', `3' and `b'. From-SVN: r44164
2001-07-20 00:42:07 +02:00
{
enum machine_mode op_mode = (GET_MODE (XEXP (x, 0)) != VOIDmode
? GET_MODE (XEXP (x, 0))
: GET_MODE (XEXP (x, 1)));
rtx op0 = simplify_replace_rtx (XEXP (x, 0), old, new);
rtx op1 = simplify_replace_rtx (XEXP (x, 1), old, new);
return
simplify_gen_relational (code, mode,
(op_mode != VOIDmode
? op_mode
: GET_MODE (op0) != VOIDmode
? GET_MODE (op0)
: GET_MODE (op1)),
op0, op1);
}
rtlanal.c (find_reg_equal_equiv_note): New function. * rtlanal.c (find_reg_equal_equiv_note): New function. * simplify-rtx.c (simplify_gen_unary, simplify_gen_ternary): New fns. (simplify_gen_relational, simplify_replace_rtx): Likewise. * rtl.h: Add declarations for above functions. From-SVN: r39644
2001-02-13 21:43:13 +01:00
case '3':
case 'b':
simplify-rtx.c (simplify_replace_rtx): Try to obtain mode from old and new operands in `<', `3' and `b'. 2001-07-19 Alexandre Oliva <aoliva@redhat.com> * simplify-rtx.c (simplify_replace_rtx): Try to obtain mode from old and new operands in `<', `3' and `b'. From-SVN: r44164
2001-07-20 00:42:07 +02:00
{
enum machine_mode op_mode = GET_MODE (XEXP (x, 0));
rtx op0 = simplify_replace_rtx (XEXP (x, 0), old, new);
return
simplify_gen_ternary (code, mode,
(op_mode != VOIDmode
? op_mode
: GET_MODE (op0)),
op0,
simplify_replace_rtx (XEXP (x, 1), old, new),
simplify_replace_rtx (XEXP (x, 2), old, new));
}
rtlanal.c (find_reg_equal_equiv_note): New function. * rtlanal.c (find_reg_equal_equiv_note): New function. * simplify-rtx.c (simplify_gen_unary, simplify_gen_ternary): New fns. (simplify_gen_relational, simplify_replace_rtx): Likewise. * rtl.h: Add declarations for above functions. From-SVN: r39644
2001-02-13 21:43:13 +01:00
case 'x':
cse.c (fold_rtx): Use simplify_subreg. * cse.c (fold_rtx): Use simplify_subreg. * simplify-rtx.c (simplify_replace_rtx): Use simplify_gen_subreg. (simplify_gen_subreg): New. (simplify_rtx): Use simplify_subreg. * rtl.h (simplify_gen_subreg): Declare. From-SVN: r42221
2001-05-17 20:46:58 +02:00
/* The only case we try to handle is a SUBREG. */
if (code == SUBREG)
{
rtx exp;
exp = simplify_gen_subreg (GET_MODE (x),
simplify_replace_rtx (SUBREG_REG (x),
old, new),
GET_MODE (SUBREG_REG (x)),
SUBREG_BYTE (x));
if (exp)
x = exp;
}
rtlanal.c (find_reg_equal_equiv_note): New function. * rtlanal.c (find_reg_equal_equiv_note): New function. * simplify-rtx.c (simplify_gen_unary, simplify_gen_ternary): New fns. (simplify_gen_relational, simplify_replace_rtx): Likewise. * rtl.h: Add declarations for above functions. From-SVN: r39644
2001-02-13 21:43:13 +01:00
return x;
default:
rtl.h (simplify_gen_relational): Add cmp_mode parameter. * rtl.h (simplify_gen_relational): Add cmp_mode parameter. * simplify-rtx.c (simplify_gen_relational): Likewise. * simplify-rtx.c (simplify_replace_rtx): Handle relationals and MEMs. * i386.h (VALID_SSE_REG_MODE): Accept MMX modes if SSE2 * i386.md (movsi_1, movdi2, movdi_1_rex64): Handle SSE2 moves. * i386.md (negsf2, negdf2, abssf2, absdf2): Force operands to registers in SSE case; fix handling of the immediates. (negsf2_ifs, abssf2_ifs): Tweak constraints; require operands to be in regsiters before reload. (negdf2_ifs, absdf2_ifs): Likewise; disable for 64bit (negdf2_ifs_rex64, absdf2_ifs_rtx64): New. (abstf,absxf,negtf,negxf splitters): Compute properly the regnum for x86_64. (avsdf2_if_rex64): New. From-SVN: r41664
2001-04-28 21:16:30 +02:00
if (GET_CODE (x) == MEM)
[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
return
replace_equiv_address_nv (x,
simplify_replace_rtx (XEXP (x, 0),
old, new));
rtl.h (simplify_gen_relational): Add cmp_mode parameter. * rtl.h (simplify_gen_relational): Add cmp_mode parameter. * simplify-rtx.c (simplify_gen_relational): Likewise. * simplify-rtx.c (simplify_replace_rtx): Handle relationals and MEMs. * i386.h (VALID_SSE_REG_MODE): Accept MMX modes if SSE2 * i386.md (movsi_1, movdi2, movdi_1_rex64): Handle SSE2 moves. * i386.md (negsf2, negdf2, abssf2, absdf2): Force operands to registers in SSE case; fix handling of the immediates. (negsf2_ifs, abssf2_ifs): Tweak constraints; require operands to be in regsiters before reload. (negdf2_ifs, absdf2_ifs): Likewise; disable for 64bit (negdf2_ifs_rex64, absdf2_ifs_rtx64): New. (abstf,absxf,negtf,negxf splitters): Compute properly the regnum for x86_64. (avsdf2_if_rex64): New. From-SVN: r41664
2001-04-28 21:16:30 +02:00
rtlanal.c (find_reg_equal_equiv_note): New function. * rtlanal.c (find_reg_equal_equiv_note): New function. * simplify-rtx.c (simplify_gen_unary, simplify_gen_ternary): New fns. (simplify_gen_relational, simplify_replace_rtx): Likewise. * rtl.h: Add declarations for above functions. From-SVN: r39644
2001-02-13 21:43:13 +01:00
return x;
}
rtl.h (simplify_gen_relational): Add cmp_mode parameter. * rtl.h (simplify_gen_relational): Add cmp_mode parameter. * simplify-rtx.c (simplify_gen_relational): Likewise. * simplify-rtx.c (simplify_replace_rtx): Handle relationals and MEMs. * i386.h (VALID_SSE_REG_MODE): Accept MMX modes if SSE2 * i386.md (movsi_1, movdi2, movdi_1_rex64): Handle SSE2 moves. * i386.md (negsf2, negdf2, abssf2, absdf2): Force operands to registers in SSE case; fix handling of the immediates. (negsf2_ifs, abssf2_ifs): Tweak constraints; require operands to be in regsiters before reload. (negdf2_ifs, absdf2_ifs): Likewise; disable for 64bit (negdf2_ifs_rex64, absdf2_ifs_rtx64): New. (abstf,absxf,negtf,negxf splitters): Compute properly the regnum for x86_64. (avsdf2_if_rex64): New. From-SVN: r41664
2001-04-28 21:16:30 +02:00
return x;
rtlanal.c (find_reg_equal_equiv_note): New function. * rtlanal.c (find_reg_equal_equiv_note): New function. * simplify-rtx.c (simplify_gen_unary, simplify_gen_ternary): New fns. (simplify_gen_relational, simplify_replace_rtx): Likewise. * rtl.h: Add declarations for above functions. From-SVN: r39644
2001-02-13 21:43:13 +01:00
}
toplev.c (set_float_handler): Make static. * toplev.c (set_float_handler): Make static. * toplev.h: Don't prototype set_float_handler. * simplify-rtx.c: Don't include setjmp.h. (simplify_unary_real, simplify_binary_real, simplify_binary_is2orm1): New functions. (simplify_unary_operation, simplify_binary_operation): Use them, via do_float_handler. * fold-const.c: Don't include setjmp.h. (exact_real_inverse_1): New function. (exact_real_inverse): Use it, via do_float_handler. * varasm.c: Don't include setjmp.h. (assemble_real_1): New function. (assemble_real): Use it, via do_float_handler. Call internal_error if we get a trap here. * c-parse.in, cse.c, cselib.c, ch/lex.c, config/i386/i386.c, config/pj/pj.c, config/s390/s390.c: Don't include setjmp.h. * java/lex.h: Don't include setjmp.h. Don't define SET_FLOAT_HANDLER or prototype set_float_handler. From-SVN: r44815
2001-08-12 03:56:10 +02:00
#if ! defined (REAL_IS_NOT_DOUBLE) || defined (REAL_ARITHMETIC)
/* Subroutine of simplify_unary_operation, called via do_float_handler.
Handles simplification of unary ops on floating point values. */
struct simplify_unary_real_args
{
rtx operand;
rtx result;
enum machine_mode mode;
enum rtx_code code;
bool want_integer;
};
#define REAL_VALUE_ABS(d_) \
(REAL_VALUE_NEGATIVE (d_) ? REAL_VALUE_NEGATE (d_) : (d_))
static void
simplify_unary_real (p)
PTR p;
{
REAL_VALUE_TYPE d;
struct simplify_unary_real_args *args =
(struct simplify_unary_real_args *) p;
REAL_VALUE_FROM_CONST_DOUBLE (d, args->operand);
if (args->want_integer)
{
HOST_WIDE_INT i;
switch (args->code)
{
case FIX: i = REAL_VALUE_FIX (d); break;
case UNSIGNED_FIX: i = REAL_VALUE_UNSIGNED_FIX (d); break;
default:
abort ();
}
args->result = GEN_INT (trunc_int_for_mode (i, args->mode));
}
else
{
switch (args->code)
{
case SQRT:
/* We don't attempt to optimize this. */
args->result = 0;
return;
case ABS: d = REAL_VALUE_ABS (d); break;
case NEG: d = REAL_VALUE_NEGATE (d); break;
case FLOAT_TRUNCATE: d = real_value_truncate (args->mode, d); break;
case FLOAT_EXTEND: /* All this does is change the mode. */ break;
case FIX: d = REAL_VALUE_RNDZINT (d); break;
case UNSIGNED_FIX: d = REAL_VALUE_UNSIGNED_RNDZINT (d); break;
default:
abort ();
}
args->result = CONST_DOUBLE_FROM_REAL_VALUE (d, args->mode);
}
}
#endif
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
/* Try to simplify a unary operation CODE whose output mode is to be
MODE with input operand OP whose mode was originally OP_MODE.
Return zero if no simplification can be made. */
rtx
simplify_unary_operation (code, mode, op, op_mode)
enum rtx_code code;
enum machine_mode mode;
rtx op;
enum machine_mode op_mode;
{
* 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 width = GET_MODE_BITSIZE (mode);
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
rtx trueop = avoid_constant_pool_reference (op);
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
/* The order of these tests is critical so that, for example, we don't
check the wrong mode (input vs. output) for a conversion operation,
such as FIX. At some point, this should be simplified. */
#if !defined(REAL_IS_NOT_DOUBLE) || defined(REAL_ARITHMETIC)
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
if (code == FLOAT && GET_MODE (trueop) == VOIDmode
&& (GET_CODE (trueop) == CONST_DOUBLE || GET_CODE (trueop) == CONST_INT))
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
{
HOST_WIDE_INT hv, lv;
REAL_VALUE_TYPE d;
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
if (GET_CODE (trueop) == CONST_INT)
lv = INTVAL (trueop), hv = HWI_SIGN_EXTEND (lv);
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
else
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
lv = CONST_DOUBLE_LOW (trueop), hv = CONST_DOUBLE_HIGH (trueop);
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
#ifdef REAL_ARITHMETIC
REAL_VALUE_FROM_INT (d, lv, hv, mode);
#else
if (hv < 0)
{
d = (double) (~ hv);
d *= ((double) ((HOST_WIDE_INT) 1 << (HOST_BITS_PER_WIDE_INT / 2))
* (double) ((HOST_WIDE_INT) 1 << (HOST_BITS_PER_WIDE_INT / 2)));
d += (double) (unsigned HOST_WIDE_INT) (~ lv);
d = (- d - 1.0);
}
else
{
d = (double) hv;
d *= ((double) ((HOST_WIDE_INT) 1 << (HOST_BITS_PER_WIDE_INT / 2))
* (double) ((HOST_WIDE_INT) 1 << (HOST_BITS_PER_WIDE_INT / 2)));
d += (double) (unsigned HOST_WIDE_INT) lv;
}
#endif /* REAL_ARITHMETIC */
d = real_value_truncate (mode, d);
return CONST_DOUBLE_FROM_REAL_VALUE (d, mode);
}
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
else if (code == UNSIGNED_FLOAT && GET_MODE (trueop) == VOIDmode
&& (GET_CODE (trueop) == CONST_DOUBLE
|| GET_CODE (trueop) == CONST_INT))
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
{
HOST_WIDE_INT hv, lv;
REAL_VALUE_TYPE d;
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
if (GET_CODE (trueop) == CONST_INT)
lv = INTVAL (trueop), hv = HWI_SIGN_EXTEND (lv);
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
else
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
lv = CONST_DOUBLE_LOW (trueop), hv = CONST_DOUBLE_HIGH (trueop);
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
if (op_mode == VOIDmode)
{
/* We don't know how to interpret negative-looking numbers in
this case, so don't try to fold those. */
if (hv < 0)
return 0;
}
else if (GET_MODE_BITSIZE (op_mode) >= HOST_BITS_PER_WIDE_INT * 2)
;
else
hv = 0, lv &= GET_MODE_MASK (op_mode);
#ifdef REAL_ARITHMETIC
REAL_VALUE_FROM_UNSIGNED_INT (d, lv, hv, mode);
#else
d = (double) (unsigned HOST_WIDE_INT) hv;
d *= ((double) ((HOST_WIDE_INT) 1 << (HOST_BITS_PER_WIDE_INT / 2))
* (double) ((HOST_WIDE_INT) 1 << (HOST_BITS_PER_WIDE_INT / 2)));
d += (double) (unsigned HOST_WIDE_INT) lv;
#endif /* REAL_ARITHMETIC */
d = real_value_truncate (mode, d);
return CONST_DOUBLE_FROM_REAL_VALUE (d, mode);
}
#endif
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
if (GET_CODE (trueop) == CONST_INT
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
&& width <= HOST_BITS_PER_WIDE_INT && width > 0)
{
alias.c: Remove uses of "register" specifier in declarations of arguments and local... 2001-10-10 Stan Shebs <shebs@apple.com> * alias.c: Remove uses of "register" specifier in declarations of arguments and local variables. * c-common.c: Ditto. * c-convert.c: Ditto. * c-decl.c: Ditto. * c-format.c: Ditto. * c-semantics.c: Ditto. * c-typeck.c: Ditto. * caller-save.c: Ditto. * calls.c: Ditto. * cfg.c: Ditto. * cfgbuild.c: Ditto. * cfgrtl.c: Ditto. * collect2.c: Ditto. * combine.c: Ditto. * convert.c: Ditto. * cppexp.c: Ditto. * cppfiles.c: Ditto. * cse.c: Ditto. * dbxout.c: Ditto. * defaults.h: Ditto. * df.c: Ditto. * dwarf2out.c: Ditto. * dwarfout.c: Ditto. * emit-rtl.c: Ditto. * explow.c: Ditto. * expmed.c: Ditto. * expr.c: Ditto. * final.c: Ditto. * fix-header.c: Ditto. * floatlib.c: Ditto. * flow.c: Ditto. * fold-const.c: Ditto. * function.c: Ditto. * gcc.c: Ditto. * gcse.c: Ditto. * gen-protos.c: Ditto. * genattrtab.c: Ditto. * gencheck.c: Ditto. * genconfig.c: Ditto. * genemit.c: Ditto. * genextract.c: Ditto. * genflags.c: Ditto. * gengenrtl.c: Ditto. * genoutput.c: Ditto. * genpeep.c: Ditto. * genrecog.c: Ditto. * gensupport.c: Ditto. * global.c: Ditto. * gmon.c: Ditto. * graph.c: Ditto. * haifa-sched.c: Ditto. * hard-reg-set.h: Ditto. * hash.c: Ditto. * integrate.c: Ditto. * jump.c: Ditto. * lists.c: Ditto. * local-alloc.c: Ditto. * loop.c: Ditto. * mips-tdump.c: Ditto. * mips-tfile.c: Ditto. * optabs.c: Ditto. * prefix.c: Ditto. * print-rtl.c: Ditto. * read-rtl.c: Ditto. * real.c: Ditto. * recog.c: Ditto. * reg-stack.c: Ditto. * regclass.c: Ditto. * regmove.c: Ditto. * reload.c: Ditto. * reload1.c: Ditto. * reorg.c: Ditto. * resource.c: Ditto. * rtl.c: Ditto. * rtlanal.c: Ditto. * scan.c: Ditto. * sched-deps.c: Ditto. * sched-rgn.c: Ditto. * sdbout.c: Ditto. * simplify-rtx.c: Ditto. * stmt.c: Ditto. * stor-layout.c: Ditto. * toplev.c: Ditto. * tradcif.y: Ditto. * tradcpp.c: Ditto. * tree.c: Ditto. * unroll.c: Ditto. * varasm.c: Ditto. * xcoffout.c: Ditto. From-SVN: r46173
2001-10-11 05:16:15 +02:00
HOST_WIDE_INT arg0 = INTVAL (trueop);
HOST_WIDE_INT val;
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
switch (code)
{
case NOT:
val = ~ arg0;
break;
case NEG:
val = - arg0;
break;
case ABS:
val = (arg0 >= 0 ? arg0 : - arg0);
break;
case FFS:
/* Don't use ffs here. Instead, get low order bit and then its
number. If arg0 is zero, this will return 0, as desired. */
arg0 &= GET_MODE_MASK (mode);
val = exact_log2 (arg0 & (- arg0)) + 1;
break;
case TRUNCATE:
val = arg0;
break;
case ZERO_EXTEND:
if (op_mode == VOIDmode)
op_mode = mode;
if (GET_MODE_BITSIZE (op_mode) == HOST_BITS_PER_WIDE_INT)
{
/* If we were really extending the mode,
we would have to distinguish between zero-extension
and sign-extension. */
if (width != GET_MODE_BITSIZE (op_mode))
abort ();
val = arg0;
}
else if (GET_MODE_BITSIZE (op_mode) < HOST_BITS_PER_WIDE_INT)
val = arg0 & ~((HOST_WIDE_INT) (-1) << GET_MODE_BITSIZE (op_mode));
else
return 0;
break;
case SIGN_EXTEND:
if (op_mode == VOIDmode)
op_mode = mode;
if (GET_MODE_BITSIZE (op_mode) == HOST_BITS_PER_WIDE_INT)
{
/* If we were really extending the mode,
we would have to distinguish between zero-extension
and sign-extension. */
if (width != GET_MODE_BITSIZE (op_mode))
abort ();
val = arg0;
}
else if (GET_MODE_BITSIZE (op_mode) < HOST_BITS_PER_WIDE_INT)
{
val
= arg0 & ~((HOST_WIDE_INT) (-1) << GET_MODE_BITSIZE (op_mode));
if (val
& ((HOST_WIDE_INT) 1 << (GET_MODE_BITSIZE (op_mode) - 1)))
val -= (HOST_WIDE_INT) 1 << GET_MODE_BITSIZE (op_mode);
}
else
return 0;
break;
case SQRT:
simplify-rtx.c (simplify_unary_operation): Add cases FLOAT_EXTEND and FLOAT_TRUNCATE to ones that return 0. * simplify-rtx.c (simplify_unary_operation): Add cases FLOAT_EXTEND and FLOAT_TRUNCATE to ones that return 0. From-SVN: r36471
2000-09-17 16:33:37 +02:00
case FLOAT_EXTEND:
case FLOAT_TRUNCATE:
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
return 0;
default:
abort ();
}
val = trunc_int_for_mode (val, mode);
return GEN_INT (val);
}
/* We can do some operations on integer CONST_DOUBLEs. Also allow
for a DImode operation on a CONST_INT. */
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
else if (GET_MODE (trueop) == VOIDmode && width <= HOST_BITS_PER_INT * 2
&& (GET_CODE (trueop) == CONST_DOUBLE
|| GET_CODE (trueop) == CONST_INT))
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
{
simplify-rtx.c (SIGN_EXTEND): New macro. * simplify-rtx.c (SIGN_EXTEND): New macro. (simplify_unary_operation, simplify_binary_operation, simplify_relational_operation): Use SIGN_EXTEND. Make low halves of (low, high) pairs unsigned if they weren't already. (simplify_ternary_operation): Cast INTVAL to unsigned before comparing to a MODE_BITSIZE. From-SVN: r34109
2000-05-23 20:06:22 +02:00
unsigned HOST_WIDE_INT l1, lv;
HOST_WIDE_INT h1, hv;
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
if (GET_CODE (trueop) == CONST_DOUBLE)
l1 = CONST_DOUBLE_LOW (trueop), h1 = CONST_DOUBLE_HIGH (trueop);
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
else
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
l1 = INTVAL (trueop), h1 = HWI_SIGN_EXTEND (l1);
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
switch (code)
{
case NOT:
lv = ~ l1;
hv = ~ h1;
break;
case NEG:
neg_double (l1, h1, &lv, &hv);
break;
case ABS:
if (h1 < 0)
neg_double (l1, h1, &lv, &hv);
else
lv = l1, hv = h1;
break;
case FFS:
hv = 0;
if (l1 == 0)
lv = HOST_BITS_PER_WIDE_INT + exact_log2 (h1 & (-h1)) + 1;
else
lv = exact_log2 (l1 & (-l1)) + 1;
break;
case TRUNCATE:
/* This is just a change-of-mode, so do nothing. */
lv = l1, hv = h1;
break;
case ZERO_EXTEND:
if (op_mode == VOIDmode
|| GET_MODE_BITSIZE (op_mode) > HOST_BITS_PER_WIDE_INT)
return 0;
hv = 0;
lv = l1 & GET_MODE_MASK (op_mode);
break;
case SIGN_EXTEND:
if (op_mode == VOIDmode
|| GET_MODE_BITSIZE (op_mode) > HOST_BITS_PER_WIDE_INT)
return 0;
else
{
lv = l1 & GET_MODE_MASK (op_mode);
if (GET_MODE_BITSIZE (op_mode) < HOST_BITS_PER_WIDE_INT
&& (lv & ((HOST_WIDE_INT) 1
<< (GET_MODE_BITSIZE (op_mode) - 1))) != 0)
lv -= (HOST_WIDE_INT) 1 << GET_MODE_BITSIZE (op_mode);
simplify-rtx.c: Rename macro SIGN_EXTEND to HWI_SIGN_EXTEND. * simplify-rtx.c: Rename macro SIGN_EXTEND to HWI_SIGN_EXTEND. All callers changed. From-SVN: r34141
2000-05-24 22:26:54 +02:00
hv = HWI_SIGN_EXTEND (lv);
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
}
break;
case SQRT:
return 0;
default:
return 0;
}
return immed_double_const (lv, hv, mode);
}
#if ! defined (REAL_IS_NOT_DOUBLE) || defined (REAL_ARITHMETIC)
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
else if (GET_CODE (trueop) == CONST_DOUBLE
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
&& GET_MODE_CLASS (mode) == MODE_FLOAT)
{
toplev.c (set_float_handler): Make static. * toplev.c (set_float_handler): Make static. * toplev.h: Don't prototype set_float_handler. * simplify-rtx.c: Don't include setjmp.h. (simplify_unary_real, simplify_binary_real, simplify_binary_is2orm1): New functions. (simplify_unary_operation, simplify_binary_operation): Use them, via do_float_handler. * fold-const.c: Don't include setjmp.h. (exact_real_inverse_1): New function. (exact_real_inverse): Use it, via do_float_handler. * varasm.c: Don't include setjmp.h. (assemble_real_1): New function. (assemble_real): Use it, via do_float_handler. Call internal_error if we get a trap here. * c-parse.in, cse.c, cselib.c, ch/lex.c, config/i386/i386.c, config/pj/pj.c, config/s390/s390.c: Don't include setjmp.h. * java/lex.h: Don't include setjmp.h. Don't define SET_FLOAT_HANDLER or prototype set_float_handler. From-SVN: r44815
2001-08-12 03:56:10 +02:00
struct simplify_unary_real_args args;
args.operand = trueop;
args.mode = mode;
args.code = code;
args.want_integer = false;
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
toplev.c (set_float_handler): Make static. * toplev.c (set_float_handler): Make static. * toplev.h: Don't prototype set_float_handler. * simplify-rtx.c: Don't include setjmp.h. (simplify_unary_real, simplify_binary_real, simplify_binary_is2orm1): New functions. (simplify_unary_operation, simplify_binary_operation): Use them, via do_float_handler. * fold-const.c: Don't include setjmp.h. (exact_real_inverse_1): New function. (exact_real_inverse): Use it, via do_float_handler. * varasm.c: Don't include setjmp.h. (assemble_real_1): New function. (assemble_real): Use it, via do_float_handler. Call internal_error if we get a trap here. * c-parse.in, cse.c, cselib.c, ch/lex.c, config/i386/i386.c, config/pj/pj.c, config/s390/s390.c: Don't include setjmp.h. * java/lex.h: Don't include setjmp.h. Don't define SET_FLOAT_HANDLER or prototype set_float_handler. From-SVN: r44815
2001-08-12 03:56:10 +02:00
if (do_float_handler (simplify_unary_real, (PTR) &args))
return args.result;
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
toplev.c (set_float_handler): Make static. * toplev.c (set_float_handler): Make static. * toplev.h: Don't prototype set_float_handler. * simplify-rtx.c: Don't include setjmp.h. (simplify_unary_real, simplify_binary_real, simplify_binary_is2orm1): New functions. (simplify_unary_operation, simplify_binary_operation): Use them, via do_float_handler. * fold-const.c: Don't include setjmp.h. (exact_real_inverse_1): New function. (exact_real_inverse): Use it, via do_float_handler. * varasm.c: Don't include setjmp.h. (assemble_real_1): New function. (assemble_real): Use it, via do_float_handler. Call internal_error if we get a trap here. * c-parse.in, cse.c, cselib.c, ch/lex.c, config/i386/i386.c, config/pj/pj.c, config/s390/s390.c: Don't include setjmp.h. * java/lex.h: Don't include setjmp.h. Don't define SET_FLOAT_HANDLER or prototype set_float_handler. From-SVN: r44815
2001-08-12 03:56:10 +02:00
return 0;
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
}
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
else if (GET_CODE (trueop) == CONST_DOUBLE
&& GET_MODE_CLASS (GET_MODE (trueop)) == MODE_FLOAT
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
&& GET_MODE_CLASS (mode) == MODE_INT
&& width <= HOST_BITS_PER_WIDE_INT && width > 0)
{
toplev.c (set_float_handler): Make static. * toplev.c (set_float_handler): Make static. * toplev.h: Don't prototype set_float_handler. * simplify-rtx.c: Don't include setjmp.h. (simplify_unary_real, simplify_binary_real, simplify_binary_is2orm1): New functions. (simplify_unary_operation, simplify_binary_operation): Use them, via do_float_handler. * fold-const.c: Don't include setjmp.h. (exact_real_inverse_1): New function. (exact_real_inverse): Use it, via do_float_handler. * varasm.c: Don't include setjmp.h. (assemble_real_1): New function. (assemble_real): Use it, via do_float_handler. Call internal_error if we get a trap here. * c-parse.in, cse.c, cselib.c, ch/lex.c, config/i386/i386.c, config/pj/pj.c, config/s390/s390.c: Don't include setjmp.h. * java/lex.h: Don't include setjmp.h. Don't define SET_FLOAT_HANDLER or prototype set_float_handler. From-SVN: r44815
2001-08-12 03:56:10 +02:00
struct simplify_unary_real_args args;
args.operand = trueop;
args.mode = mode;
args.code = code;
args.want_integer = true;
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
toplev.c (set_float_handler): Make static. * toplev.c (set_float_handler): Make static. * toplev.h: Don't prototype set_float_handler. * simplify-rtx.c: Don't include setjmp.h. (simplify_unary_real, simplify_binary_real, simplify_binary_is2orm1): New functions. (simplify_unary_operation, simplify_binary_operation): Use them, via do_float_handler. * fold-const.c: Don't include setjmp.h. (exact_real_inverse_1): New function. (exact_real_inverse): Use it, via do_float_handler. * varasm.c: Don't include setjmp.h. (assemble_real_1): New function. (assemble_real): Use it, via do_float_handler. Call internal_error if we get a trap here. * c-parse.in, cse.c, cselib.c, ch/lex.c, config/i386/i386.c, config/pj/pj.c, config/s390/s390.c: Don't include setjmp.h. * java/lex.h: Don't include setjmp.h. Don't define SET_FLOAT_HANDLER or prototype set_float_handler. From-SVN: r44815
2001-08-12 03:56:10 +02:00
if (do_float_handler (simplify_unary_real, (PTR) &args))
return args.result;
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
toplev.c (set_float_handler): Make static. * toplev.c (set_float_handler): Make static. * toplev.h: Don't prototype set_float_handler. * simplify-rtx.c: Don't include setjmp.h. (simplify_unary_real, simplify_binary_real, simplify_binary_is2orm1): New functions. (simplify_unary_operation, simplify_binary_operation): Use them, via do_float_handler. * fold-const.c: Don't include setjmp.h. (exact_real_inverse_1): New function. (exact_real_inverse): Use it, via do_float_handler. * varasm.c: Don't include setjmp.h. (assemble_real_1): New function. (assemble_real): Use it, via do_float_handler. Call internal_error if we get a trap here. * c-parse.in, cse.c, cselib.c, ch/lex.c, config/i386/i386.c, config/pj/pj.c, config/s390/s390.c: Don't include setjmp.h. * java/lex.h: Don't include setjmp.h. Don't define SET_FLOAT_HANDLER or prototype set_float_handler. From-SVN: r44815
2001-08-12 03:56:10 +02:00
return 0;
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
}
#endif
/* This was formerly used only for non-IEEE float.
eggert@twinsun.com says it is safe for IEEE also. */
else
{
jump.c (jump_optimize_1): Use reversed_comparison_code instead of can_reverse_comparison_p. * jump.c (jump_optimize_1): Use reversed_comparison_code instead of can_reverse_comparison_p. (jump_back_p): Likewise. (invert_exp_1): Likewise. (thread_jumps): Likewise. * simplify-rtx.c (simplify_unary_operation): Likewise. (simplify_ternary_operation): Likewise. * cse.c (find_comparison_args): Convert to use can_reverse_comparison_p. (record_jump_equiv): Likewise. From-SVN: r38802
2001-01-08 16:16:40 +01:00
enum rtx_code reversed;
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
/* There are some simplifications we can do even if the operands
aren't constant. */
switch (code)
{
case NOT:
combine.c (combine_simplify_rtx): Use gen_unary to distribute the NOT for De Morgan's rule. * combine.c (combine_simplify_rtx): Use gen_unary to distribute the NOT for De Morgan's rule. * simplify-rtx.c (simplify_unary_operation): Simplify a BImode NOT of a comparison to the reverse comparison. From-SVN: r36506
2000-09-18 20:24:32 +02:00
/* (not (not X)) == X. */
if (GET_CODE (op) == NOT)
return XEXP (op, 0);
/* (not (eq X Y)) == (ne X Y), etc. */
if (mode == BImode && GET_RTX_CLASS (GET_CODE (op)) == '<'
jump.c (jump_optimize_1): Use reversed_comparison_code instead of can_reverse_comparison_p. * jump.c (jump_optimize_1): Use reversed_comparison_code instead of can_reverse_comparison_p. (jump_back_p): Likewise. (invert_exp_1): Likewise. (thread_jumps): Likewise. * simplify-rtx.c (simplify_unary_operation): Likewise. (simplify_ternary_operation): Likewise. * cse.c (find_comparison_args): Convert to use can_reverse_comparison_p. (record_jump_equiv): Likewise. From-SVN: r38802
2001-01-08 16:16:40 +01:00
&& ((reversed = reversed_comparison_code (op, NULL_RTX))
!= UNKNOWN))
return gen_rtx_fmt_ee (reversed,
combine.c (combine_simplify_rtx): Use gen_unary to distribute the NOT for De Morgan's rule. * combine.c (combine_simplify_rtx): Use gen_unary to distribute the NOT for De Morgan's rule. * simplify-rtx.c (simplify_unary_operation): Simplify a BImode NOT of a comparison to the reverse comparison. From-SVN: r36506
2000-09-18 20:24:32 +02:00
op_mode, XEXP (op, 0), XEXP (op, 1));
break;
case NEG:
/* (neg (neg X)) == X. */
if (GET_CODE (op) == NEG)
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
return XEXP (op, 0);
break;
case SIGN_EXTEND:
/* (sign_extend (truncate (minus (label_ref L1) (label_ref L2))))
becomes just the MINUS if its mode is MODE. This allows
folding switch statements on machines using casesi (such as
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
the VAX). */
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
if (GET_CODE (op) == TRUNCATE
&& GET_MODE (XEXP (op, 0)) == mode
&& GET_CODE (XEXP (op, 0)) == MINUS
&& GET_CODE (XEXP (XEXP (op, 0), 0)) == LABEL_REF
&& GET_CODE (XEXP (XEXP (op, 0), 1)) == LABEL_REF)
return XEXP (op, 0);
* tm.texi (POINTERS_EXTEND_UNSIGNED) Modify definition. * optabs.c (can_extend_p) Check HAVE_ptr_extend for a specialized pointer extension instruction. * combine.c (nonzero_bits,num_sign_bit_copies) Likewise. * simplify-rtx.c (simplify_unary_operation) Likewise. * explow.c (convert_memory_address) Check value of POINTERS_EXTEND_UNSIGNED to avoid some conversions when less than zero. * config/ia64/t-hpux (LIBGCC, INSTALL_LIBGCC, MULTILIB_OPTIONS, MULTILIB_DIRNAMES, MULTILIB_MATCHES) Add multilib support. * config/ia64/hpux.h (CPP_SPEC, ASM_SPEC, SUBTARGET_SWITCHES) Add Multilib Support. (POINTERS_EXTEND_UNSIGNED) Define for ILP32 support. * config/ia64/ia64.h (MASK_ILP32, TARGET_ILP32, SUBTARGET_SWITCHES) Add Multilib Support. (POINTER_SIZE, LONG_TYPE_SIZE, MAX_LONG_TYPE_SIZE) Modify for ILP32 support. * config/ia64/ia64.c (rtx_needs_barrier) Add support for addp4. * config/ia64/ia64.md (ptr_extend) New instruction to "swizzle" a 32 bit HP-UX pointer into a 64 bit HP-UX pointer. From-SVN: r44166
2001-07-20 01:26:51 +02:00
#if defined(POINTERS_EXTEND_UNSIGNED) && !defined(HAVE_ptr_extend)
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
if (! POINTERS_EXTEND_UNSIGNED
&& mode == Pmode && GET_MODE (op) == ptr_mode
combine.c (nonzero_bits, case PLUS): If pointers extend unsigned and this is the sum of a pointer and a constant... * combine.c (nonzero_bits, case PLUS): If pointers extend unsigned and this is the sum of a pointer and a constant, we know the result did not overflow. (num_sign_bit_copies, case PLUS): Likewise. * explow.c (convert_memory_address): Remove opposite SUBREG. * function.c (instantiate_new_reg): New function (from common code). (instantiate_virtual_regs_1): Call it. For PLUS, handle if (plus (subreg (virt-reg) (const_int)) if pointers sign- or zero-extend. * simplify-rtx.c (simplify_unary_operation, case ZERO_EXTEND): If pointers extend unsigned, use inside of SUBREG. (simplify_unary_operation, case SIGN_EXTEND): Likewise, if sign extend. From-SVN: r39489
2001-02-06 13:39:15 +01:00
&& (CONSTANT_P (op)
|| (GET_CODE (op) == SUBREG
&& GET_CODE (SUBREG_REG (op)) == REG
&& REG_POINTER (SUBREG_REG (op))
&& GET_MODE (SUBREG_REG (op)) == Pmode)))
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
return convert_memory_address (Pmode, op);
#endif
break;
* tm.texi (POINTERS_EXTEND_UNSIGNED) Modify definition. * optabs.c (can_extend_p) Check HAVE_ptr_extend for a specialized pointer extension instruction. * combine.c (nonzero_bits,num_sign_bit_copies) Likewise. * simplify-rtx.c (simplify_unary_operation) Likewise. * explow.c (convert_memory_address) Check value of POINTERS_EXTEND_UNSIGNED to avoid some conversions when less than zero. * config/ia64/t-hpux (LIBGCC, INSTALL_LIBGCC, MULTILIB_OPTIONS, MULTILIB_DIRNAMES, MULTILIB_MATCHES) Add multilib support. * config/ia64/hpux.h (CPP_SPEC, ASM_SPEC, SUBTARGET_SWITCHES) Add Multilib Support. (POINTERS_EXTEND_UNSIGNED) Define for ILP32 support. * config/ia64/ia64.h (MASK_ILP32, TARGET_ILP32, SUBTARGET_SWITCHES) Add Multilib Support. (POINTER_SIZE, LONG_TYPE_SIZE, MAX_LONG_TYPE_SIZE) Modify for ILP32 support. * config/ia64/ia64.c (rtx_needs_barrier) Add support for addp4. * config/ia64/ia64.md (ptr_extend) New instruction to "swizzle" a 32 bit HP-UX pointer into a 64 bit HP-UX pointer. From-SVN: r44166
2001-07-20 01:26:51 +02:00
#if defined(POINTERS_EXTEND_UNSIGNED) && !defined(HAVE_ptr_extend)
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
case ZERO_EXTEND:
* tm.texi (POINTERS_EXTEND_UNSIGNED) Modify definition. * optabs.c (can_extend_p) Check HAVE_ptr_extend for a specialized pointer extension instruction. * combine.c (nonzero_bits,num_sign_bit_copies) Likewise. * simplify-rtx.c (simplify_unary_operation) Likewise. * explow.c (convert_memory_address) Check value of POINTERS_EXTEND_UNSIGNED to avoid some conversions when less than zero. * config/ia64/t-hpux (LIBGCC, INSTALL_LIBGCC, MULTILIB_OPTIONS, MULTILIB_DIRNAMES, MULTILIB_MATCHES) Add multilib support. * config/ia64/hpux.h (CPP_SPEC, ASM_SPEC, SUBTARGET_SWITCHES) Add Multilib Support. (POINTERS_EXTEND_UNSIGNED) Define for ILP32 support. * config/ia64/ia64.h (MASK_ILP32, TARGET_ILP32, SUBTARGET_SWITCHES) Add Multilib Support. (POINTER_SIZE, LONG_TYPE_SIZE, MAX_LONG_TYPE_SIZE) Modify for ILP32 support. * config/ia64/ia64.c (rtx_needs_barrier) Add support for addp4. * config/ia64/ia64.md (ptr_extend) New instruction to "swizzle" a 32 bit HP-UX pointer into a 64 bit HP-UX pointer. From-SVN: r44166
2001-07-20 01:26:51 +02:00
if (POINTERS_EXTEND_UNSIGNED > 0
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
&& mode == Pmode && GET_MODE (op) == ptr_mode
combine.c (nonzero_bits, case PLUS): If pointers extend unsigned and this is the sum of a pointer and a constant... * combine.c (nonzero_bits, case PLUS): If pointers extend unsigned and this is the sum of a pointer and a constant, we know the result did not overflow. (num_sign_bit_copies, case PLUS): Likewise. * explow.c (convert_memory_address): Remove opposite SUBREG. * function.c (instantiate_new_reg): New function (from common code). (instantiate_virtual_regs_1): Call it. For PLUS, handle if (plus (subreg (virt-reg) (const_int)) if pointers sign- or zero-extend. * simplify-rtx.c (simplify_unary_operation, case ZERO_EXTEND): If pointers extend unsigned, use inside of SUBREG. (simplify_unary_operation, case SIGN_EXTEND): Likewise, if sign extend. From-SVN: r39489
2001-02-06 13:39:15 +01:00
&& (CONSTANT_P (op)
|| (GET_CODE (op) == SUBREG
&& GET_CODE (SUBREG_REG (op)) == REG
&& REG_POINTER (SUBREG_REG (op))
&& GET_MODE (SUBREG_REG (op)) == Pmode)))
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
return convert_memory_address (Pmode, op);
break;
#endif
default:
break;
}
return 0;
}
}
toplev.c (set_float_handler): Make static. * toplev.c (set_float_handler): Make static. * toplev.h: Don't prototype set_float_handler. * simplify-rtx.c: Don't include setjmp.h. (simplify_unary_real, simplify_binary_real, simplify_binary_is2orm1): New functions. (simplify_unary_operation, simplify_binary_operation): Use them, via do_float_handler. * fold-const.c: Don't include setjmp.h. (exact_real_inverse_1): New function. (exact_real_inverse): Use it, via do_float_handler. * varasm.c: Don't include setjmp.h. (assemble_real_1): New function. (assemble_real): Use it, via do_float_handler. Call internal_error if we get a trap here. * c-parse.in, cse.c, cselib.c, ch/lex.c, config/i386/i386.c, config/pj/pj.c, config/s390/s390.c: Don't include setjmp.h. * java/lex.h: Don't include setjmp.h. Don't define SET_FLOAT_HANDLER or prototype set_float_handler. From-SVN: r44815
2001-08-12 03:56:10 +02:00
#if ! defined (REAL_IS_NOT_DOUBLE) || defined (REAL_ARITHMETIC)
/* Subroutine of simplify_binary_operation, called via do_float_handler.
Handles simplification of binary ops on floating point values. */
struct simplify_binary_real_args
{
rtx trueop0, trueop1;
rtx result;
enum rtx_code code;
enum machine_mode mode;
};
static void
simplify_binary_real (p)
PTR p;
{
REAL_VALUE_TYPE f0, f1, value;
struct simplify_binary_real_args *args =
(struct simplify_binary_real_args *) p;
REAL_VALUE_FROM_CONST_DOUBLE (f0, args->trueop0);
REAL_VALUE_FROM_CONST_DOUBLE (f1, args->trueop1);
f0 = real_value_truncate (args->mode, f0);
f1 = real_value_truncate (args->mode, f1);
#ifdef REAL_ARITHMETIC
#ifndef REAL_INFINITY
if (args->code == DIV && REAL_VALUES_EQUAL (f1, dconst0))
{
args->result = 0;
return;
}
#endif
REAL_ARITHMETIC (value, rtx_to_tree_code (args->code), f0, f1);
#else
switch (args->code)
{
case PLUS:
value = f0 + f1;
break;
case MINUS:
value = f0 - f1;
break;
case MULT:
value = f0 * f1;
break;
case DIV:
#ifndef REAL_INFINITY
if (f1 == 0)
return 0;
#endif
value = f0 / f1;
break;
case SMIN:
value = MIN (f0, f1);
break;
case SMAX:
value = MAX (f0, f1);
break;
default:
abort ();
}
#endif
value = real_value_truncate (args->mode, value);
args->result = CONST_DOUBLE_FROM_REAL_VALUE (value, args->mode);
}
#endif
/* Another subroutine called via do_float_handler. This one tests
the floating point value given against 2. and -1. */
struct simplify_binary_is2orm1_args
{
rtx value;
bool is_2;
bool is_m1;
};
static void
simplify_binary_is2orm1 (p)
PTR p;
{
REAL_VALUE_TYPE d;
struct simplify_binary_is2orm1_args *args =
(struct simplify_binary_is2orm1_args *) p;
REAL_VALUE_FROM_CONST_DOUBLE (d, args->value);
args->is_2 = REAL_VALUES_EQUAL (d, dconst2);
args->is_m1 = REAL_VALUES_EQUAL (d, dconstm1);
}
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
/* Simplify a binary operation CODE with result mode MODE, operating on OP0
and OP1. Return 0 if no simplification is possible.
Don't use this for relational operations such as EQ or LT.
Use simplify_relational_operation instead. */
rtx
simplify_binary_operation (code, mode, op0, op1)
enum rtx_code code;
enum machine_mode mode;
rtx op0, op1;
{
alias.c: Remove uses of "register" specifier in declarations of arguments and local... 2001-10-10 Stan Shebs <shebs@apple.com> * alias.c: Remove uses of "register" specifier in declarations of arguments and local variables. * c-common.c: Ditto. * c-convert.c: Ditto. * c-decl.c: Ditto. * c-format.c: Ditto. * c-semantics.c: Ditto. * c-typeck.c: Ditto. * caller-save.c: Ditto. * calls.c: Ditto. * cfg.c: Ditto. * cfgbuild.c: Ditto. * cfgrtl.c: Ditto. * collect2.c: Ditto. * combine.c: Ditto. * convert.c: Ditto. * cppexp.c: Ditto. * cppfiles.c: Ditto. * cse.c: Ditto. * dbxout.c: Ditto. * defaults.h: Ditto. * df.c: Ditto. * dwarf2out.c: Ditto. * dwarfout.c: Ditto. * emit-rtl.c: Ditto. * explow.c: Ditto. * expmed.c: Ditto. * expr.c: Ditto. * final.c: Ditto. * fix-header.c: Ditto. * floatlib.c: Ditto. * flow.c: Ditto. * fold-const.c: Ditto. * function.c: Ditto. * gcc.c: Ditto. * gcse.c: Ditto. * gen-protos.c: Ditto. * genattrtab.c: Ditto. * gencheck.c: Ditto. * genconfig.c: Ditto. * genemit.c: Ditto. * genextract.c: Ditto. * genflags.c: Ditto. * gengenrtl.c: Ditto. * genoutput.c: Ditto. * genpeep.c: Ditto. * genrecog.c: Ditto. * gensupport.c: Ditto. * global.c: Ditto. * gmon.c: Ditto. * graph.c: Ditto. * haifa-sched.c: Ditto. * hard-reg-set.h: Ditto. * hash.c: Ditto. * integrate.c: Ditto. * jump.c: Ditto. * lists.c: Ditto. * local-alloc.c: Ditto. * loop.c: Ditto. * mips-tdump.c: Ditto. * mips-tfile.c: Ditto. * optabs.c: Ditto. * prefix.c: Ditto. * print-rtl.c: Ditto. * read-rtl.c: Ditto. * real.c: Ditto. * recog.c: Ditto. * reg-stack.c: Ditto. * regclass.c: Ditto. * regmove.c: Ditto. * reload.c: Ditto. * reload1.c: Ditto. * reorg.c: Ditto. * resource.c: Ditto. * rtl.c: Ditto. * rtlanal.c: Ditto. * scan.c: Ditto. * sched-deps.c: Ditto. * sched-rgn.c: Ditto. * sdbout.c: Ditto. * simplify-rtx.c: Ditto. * stmt.c: Ditto. * stor-layout.c: Ditto. * toplev.c: Ditto. * tradcif.y: Ditto. * tradcpp.c: Ditto. * tree.c: Ditto. * unroll.c: Ditto. * varasm.c: Ditto. * xcoffout.c: Ditto. From-SVN: r46173
2001-10-11 05:16:15 +02:00
HOST_WIDE_INT arg0, arg1, arg0s, arg1s;
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
HOST_WIDE_INT val;
* 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 width = GET_MODE_BITSIZE (mode);
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
rtx tem;
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
rtx trueop0 = avoid_constant_pool_reference (op0);
rtx trueop1 = avoid_constant_pool_reference (op1);
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
/* Relational operations don't work here. We must know the mode
of the operands in order to do the comparison correctly.
Assuming a full word can give incorrect results.
Consider comparing 128 with -128 in QImode. */
if (GET_RTX_CLASS (code) == '<')
abort ();
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
/* Make sure the constant is second. */
if (GET_RTX_CLASS (code) == 'c'
&& swap_commutative_operands_p (trueop0, trueop1))
{
tem = op0, op0 = op1, op1 = tem;
tem = trueop0, trueop0 = trueop1, trueop1 = tem;
}
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
#if ! defined (REAL_IS_NOT_DOUBLE) || defined (REAL_ARITHMETIC)
if (GET_MODE_CLASS (mode) == MODE_FLOAT
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
&& GET_CODE (trueop0) == CONST_DOUBLE
&& GET_CODE (trueop1) == CONST_DOUBLE
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
&& mode == GET_MODE (op0) && mode == GET_MODE (op1))
{
toplev.c (set_float_handler): Make static. * toplev.c (set_float_handler): Make static. * toplev.h: Don't prototype set_float_handler. * simplify-rtx.c: Don't include setjmp.h. (simplify_unary_real, simplify_binary_real, simplify_binary_is2orm1): New functions. (simplify_unary_operation, simplify_binary_operation): Use them, via do_float_handler. * fold-const.c: Don't include setjmp.h. (exact_real_inverse_1): New function. (exact_real_inverse): Use it, via do_float_handler. * varasm.c: Don't include setjmp.h. (assemble_real_1): New function. (assemble_real): Use it, via do_float_handler. Call internal_error if we get a trap here. * c-parse.in, cse.c, cselib.c, ch/lex.c, config/i386/i386.c, config/pj/pj.c, config/s390/s390.c: Don't include setjmp.h. * java/lex.h: Don't include setjmp.h. Don't define SET_FLOAT_HANDLER or prototype set_float_handler. From-SVN: r44815
2001-08-12 03:56:10 +02:00
struct simplify_binary_real_args args;
args.trueop0 = trueop0;
args.trueop1 = trueop1;
args.mode = mode;
args.code = code;
if (do_float_handler (simplify_binary_real, (PTR) &args))
return args.result;
return 0;
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
}
#endif /* not REAL_IS_NOT_DOUBLE, or REAL_ARITHMETIC */
/* We can fold some multi-word operations. */
if (GET_MODE_CLASS (mode) == MODE_INT
&& width == HOST_BITS_PER_WIDE_INT * 2
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
&& (GET_CODE (trueop0) == CONST_DOUBLE
|| GET_CODE (trueop0) == CONST_INT)
&& (GET_CODE (trueop1) == CONST_DOUBLE
|| GET_CODE (trueop1) == CONST_INT))
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
{
simplify-rtx.c (SIGN_EXTEND): New macro. * simplify-rtx.c (SIGN_EXTEND): New macro. (simplify_unary_operation, simplify_binary_operation, simplify_relational_operation): Use SIGN_EXTEND. Make low halves of (low, high) pairs unsigned if they weren't already. (simplify_ternary_operation): Cast INTVAL to unsigned before comparing to a MODE_BITSIZE. From-SVN: r34109
2000-05-23 20:06:22 +02:00
unsigned HOST_WIDE_INT l1, l2, lv;
HOST_WIDE_INT h1, h2, hv;
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
if (GET_CODE (trueop0) == CONST_DOUBLE)
l1 = CONST_DOUBLE_LOW (trueop0), h1 = CONST_DOUBLE_HIGH (trueop0);
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
else
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
l1 = INTVAL (trueop0), h1 = HWI_SIGN_EXTEND (l1);
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
if (GET_CODE (trueop1) == CONST_DOUBLE)
l2 = CONST_DOUBLE_LOW (trueop1), h2 = CONST_DOUBLE_HIGH (trueop1);
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
else
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
l2 = INTVAL (trueop1), h2 = HWI_SIGN_EXTEND (l2);
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
switch (code)
{
case MINUS:
/* A - B == A + (-B). */
neg_double (l2, h2, &lv, &hv);
l2 = lv, h2 = hv;
/* .. fall through ... */
case PLUS:
add_double (l1, h1, l2, h2, &lv, &hv);
break;
case MULT:
mul_double (l1, h1, l2, h2, &lv, &hv);
break;
case DIV: case MOD: case UDIV: case UMOD:
/* We'd need to include tree.h to do this and it doesn't seem worth
it. */
return 0;
case AND:
lv = l1 & l2, hv = h1 & h2;
break;
case IOR:
lv = l1 | l2, hv = h1 | h2;
break;
case XOR:
lv = l1 ^ l2, hv = h1 ^ h2;
break;
case SMIN:
if (h1 < h2
|| (h1 == h2
&& ((unsigned HOST_WIDE_INT) l1
< (unsigned HOST_WIDE_INT) l2)))
lv = l1, hv = h1;
else
lv = l2, hv = h2;
break;
case SMAX:
if (h1 > h2
|| (h1 == h2
&& ((unsigned HOST_WIDE_INT) l1
> (unsigned HOST_WIDE_INT) l2)))
lv = l1, hv = h1;
else
lv = l2, hv = h2;
break;
case UMIN:
if ((unsigned HOST_WIDE_INT) h1 < (unsigned HOST_WIDE_INT) h2
|| (h1 == h2
&& ((unsigned HOST_WIDE_INT) l1
< (unsigned HOST_WIDE_INT) l2)))
lv = l1, hv = h1;
else
lv = l2, hv = h2;
break;
case UMAX:
if ((unsigned HOST_WIDE_INT) h1 > (unsigned HOST_WIDE_INT) h2
|| (h1 == h2
&& ((unsigned HOST_WIDE_INT) l1
> (unsigned HOST_WIDE_INT) l2)))
lv = l1, hv = h1;
else
lv = l2, hv = h2;
break;
case LSHIFTRT: case ASHIFTRT:
case ASHIFT:
case ROTATE: case ROTATERT:
#ifdef SHIFT_COUNT_TRUNCATED
if (SHIFT_COUNT_TRUNCATED)
l2 &= (GET_MODE_BITSIZE (mode) - 1), h2 = 0;
#endif
simplify-rtx.c (SIGN_EXTEND): New macro. * simplify-rtx.c (SIGN_EXTEND): New macro. (simplify_unary_operation, simplify_binary_operation, simplify_relational_operation): Use SIGN_EXTEND. Make low halves of (low, high) pairs unsigned if they weren't already. (simplify_ternary_operation): Cast INTVAL to unsigned before comparing to a MODE_BITSIZE. From-SVN: r34109
2000-05-23 20:06:22 +02:00
if (h2 != 0 || l2 >= GET_MODE_BITSIZE (mode))
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
return 0;
if (code == LSHIFTRT || code == ASHIFTRT)
rshift_double (l1, h1, l2, GET_MODE_BITSIZE (mode), &lv, &hv,
code == ASHIFTRT);
else if (code == ASHIFT)
lshift_double (l1, h1, l2, GET_MODE_BITSIZE (mode), &lv, &hv, 1);
else if (code == ROTATE)
lrotate_double (l1, h1, l2, GET_MODE_BITSIZE (mode), &lv, &hv);
else /* code == ROTATERT */
rrotate_double (l1, h1, l2, GET_MODE_BITSIZE (mode), &lv, &hv);
break;
default:
return 0;
}
return immed_double_const (lv, hv, mode);
}
if (GET_CODE (op0) != CONST_INT || GET_CODE (op1) != CONST_INT
|| width > HOST_BITS_PER_WIDE_INT || width == 0)
{
/* Even if we can't compute a constant result,
there are some cases worth simplifying. */
switch (code)
{
case PLUS:
/* In IEEE floating point, x+0 is not the same as x. Similarly
for the other optimizations below. */
if (TARGET_FLOAT_FORMAT == IEEE_FLOAT_FORMAT
Brad's -ffast-math breakup. From-SVN: r40300
2001-03-07 20:29:41 +01:00
&& FLOAT_MODE_P (mode) && ! flag_unsafe_math_optimizations)
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
break;
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
if (trueop1 == CONST0_RTX (mode))
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
return op0;
/* ((-a) + b) -> (b - a) and similarly for (a + (-b)) */
if (GET_CODE (op0) == NEG)
return simplify_gen_binary (MINUS, mode, op1, XEXP (op0, 0));
else if (GET_CODE (op1) == NEG)
return simplify_gen_binary (MINUS, mode, op0, XEXP (op1, 0));
simplify-rtx.c (simplify_binary_operation): Simplify ~a + 1 into -a. 2001-05-04 Lars Brinkhoff <lars@nocrew.org> * simplify-rtx.c (simplify_binary_operation): Simplify ~a + 1 into -a. From-SVN: r41854
2001-05-05 02:32:19 +02:00
/* (~a) + 1 -> -a */
if (INTEGRAL_MODE_P (mode)
&& GET_CODE (op0) == NOT
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
&& trueop1 == const1_rtx)
simplify-rtx.c (simplify_binary_operation): Simplify ~a + 1 into -a. 2001-05-04 Lars Brinkhoff <lars@nocrew.org> * simplify-rtx.c (simplify_binary_operation): Simplify ~a + 1 into -a. From-SVN: r41854
2001-05-05 02:32:19 +02:00
return gen_rtx_NEG (mode, XEXP (op0, 0));
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
/* Handle both-operands-constant cases. We can only add
CONST_INTs to constants since the sum of relocatable symbols
can't be handled by most assemblers. Don't add CONST_INT
to CONST_INT since overflow won't be computed properly if wider
than HOST_BITS_PER_WIDE_INT. */
if (CONSTANT_P (op0) && GET_MODE (op0) != VOIDmode
&& GET_CODE (op1) == CONST_INT)
return plus_constant (op0, INTVAL (op1));
else if (CONSTANT_P (op1) && GET_MODE (op1) != VOIDmode
&& GET_CODE (op0) == CONST_INT)
return plus_constant (op1, INTVAL (op0));
/* See if this is something like X * C - X or vice versa or
if the multiplication is written as a shift. If so, we can
distribute and make a new multiply, shift, or maybe just
have X (if C is 2 in the example above). But don't make
real multiply if we didn't have one before. */
if (! FLOAT_MODE_P (mode))
{
HOST_WIDE_INT coeff0 = 1, coeff1 = 1;
rtx lhs = op0, rhs = op1;
int had_mult = 0;
if (GET_CODE (lhs) == NEG)
coeff0 = -1, lhs = XEXP (lhs, 0);
else if (GET_CODE (lhs) == MULT
&& GET_CODE (XEXP (lhs, 1)) == CONST_INT)
{
coeff0 = INTVAL (XEXP (lhs, 1)), lhs = XEXP (lhs, 0);
had_mult = 1;
}
else if (GET_CODE (lhs) == ASHIFT
&& GET_CODE (XEXP (lhs, 1)) == CONST_INT
&& INTVAL (XEXP (lhs, 1)) >= 0
&& INTVAL (XEXP (lhs, 1)) < HOST_BITS_PER_WIDE_INT)
{
coeff0 = ((HOST_WIDE_INT) 1) << INTVAL (XEXP (lhs, 1));
lhs = XEXP (lhs, 0);
}
if (GET_CODE (rhs) == NEG)
coeff1 = -1, rhs = XEXP (rhs, 0);
else if (GET_CODE (rhs) == MULT
&& GET_CODE (XEXP (rhs, 1)) == CONST_INT)
{
coeff1 = INTVAL (XEXP (rhs, 1)), rhs = XEXP (rhs, 0);
had_mult = 1;
}
else if (GET_CODE (rhs) == ASHIFT
&& GET_CODE (XEXP (rhs, 1)) == CONST_INT
&& INTVAL (XEXP (rhs, 1)) >= 0
&& INTVAL (XEXP (rhs, 1)) < HOST_BITS_PER_WIDE_INT)
{
coeff1 = ((HOST_WIDE_INT) 1) << INTVAL (XEXP (rhs, 1));
rhs = XEXP (rhs, 0);
}
if (rtx_equal_p (lhs, rhs))
{
tem = simplify_gen_binary (MULT, mode, lhs,
GEN_INT (coeff0 + coeff1));
return (GET_CODE (tem) == MULT && ! had_mult) ? 0 : tem;
}
}
/* If one of the operands is a PLUS or a MINUS, see if we can
simplify this by the associative law.
Don't use the associative law for floating point.
The inaccuracy makes it nonassociative,
and subtle programs can break if operations are associated. */
if (INTEGRAL_MODE_P (mode)
&& (GET_CODE (op0) == PLUS || GET_CODE (op0) == MINUS
loop.c (record_giv): Avoid simplifying MULT to ASHIFT. * loop.c (record_giv): Avoid simplifying MULT to ASHIFT. (express_from_1): Wrap lines. * rtlanal.c (commutative_operand_precedence): Rename from operand_preference; export. * rtl.h: Declare it. * simplify-rtx.c (simplify_gen_binary): Tidy +/- const_int handling. (simplify_binary_operation): Invoke simplify_plus_minus on (CONST (PLUS ...)) as well. (struct simplify_plus_minus_op_data): New. (simplify_plus_minus_op_data_cmp): New. (simplify_plus_minus): Use them. Avoid infinite recursion with simplify_binary_operation wrt CONST. From-SVN: r45473
2001-09-07 20:14:32 +02:00
|| GET_CODE (op1) == PLUS || GET_CODE (op1) == MINUS
|| (GET_CODE (op0) == CONST
&& GET_CODE (XEXP (op0, 0)) == PLUS)
|| (GET_CODE (op1) == CONST
&& GET_CODE (XEXP (op1, 0)) == PLUS))
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
&& (tem = simplify_plus_minus (code, mode, op0, op1)) != 0)
return tem;
break;
case COMPARE:
#ifdef HAVE_cc0
/* Convert (compare FOO (const_int 0)) to FOO unless we aren't
using cc0, in which case we want to leave it as a COMPARE
so we can distinguish it from a register-register-copy.
In IEEE floating point, x-0 is not the same as x. */
if ((TARGET_FLOAT_FORMAT != IEEE_FLOAT_FORMAT
Brad's -ffast-math breakup. From-SVN: r40300
2001-03-07 20:29:41 +01:00
|| ! FLOAT_MODE_P (mode) || flag_unsafe_math_optimizations)
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
&& trueop1 == CONST0_RTX (mode))
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
return op0;
simplify-rtx.c (simplify_binary_operation): Recognize (compare (gt[u] (cc) 0) (lt[u] (cc) 0)). * simplify-rtx.c (simplify_binary_operation): Recognize (compare (gt[u] (cc) 0) (lt[u] (cc) 0)). (simplify_ternary_operation): Do not examine MODE_BITSIZE of a CONST_INT, it will always be zero. From-SVN: r35098
2000-07-17 20:31:50 +02:00
#endif
/* Convert (compare (gt (flags) 0) (lt (flags) 0)) to (flags). */
if (((GET_CODE (op0) == GT && GET_CODE (op1) == LT)
|| (GET_CODE (op0) == GTU && GET_CODE (op1) == LTU))
&& XEXP (op0, 1) == const0_rtx && XEXP (op1, 1) == const0_rtx)
{
rtx xop00 = XEXP (op0, 0);
rtx xop10 = XEXP (op1, 0);
#ifdef HAVE_cc0
if (GET_CODE (xop00) == CC0 && GET_CODE (xop10) == CC0)
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
#else
simplify-rtx.c (simplify_binary_operation): Recognize (compare (gt[u] (cc) 0) (lt[u] (cc) 0)). * simplify-rtx.c (simplify_binary_operation): Recognize (compare (gt[u] (cc) 0) (lt[u] (cc) 0)). (simplify_ternary_operation): Do not examine MODE_BITSIZE of a CONST_INT, it will always be zero. From-SVN: r35098
2000-07-17 20:31:50 +02:00
if (GET_CODE (xop00) == REG && GET_CODE (xop10) == REG
&& GET_MODE (xop00) == GET_MODE (xop10)
&& REGNO (xop00) == REGNO (xop10)
&& GET_MODE_CLASS (GET_MODE (xop00)) == MODE_CC
&& GET_MODE_CLASS (GET_MODE (xop10)) == MODE_CC)
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
#endif
simplify-rtx.c (simplify_binary_operation): Recognize (compare (gt[u] (cc) 0) (lt[u] (cc) 0)). * simplify-rtx.c (simplify_binary_operation): Recognize (compare (gt[u] (cc) 0) (lt[u] (cc) 0)). (simplify_ternary_operation): Do not examine MODE_BITSIZE of a CONST_INT, it will always be zero. From-SVN: r35098
2000-07-17 20:31:50 +02:00
return xop00;
}
break;
loop.c (record_giv): Avoid simplifying MULT to ASHIFT. * loop.c (record_giv): Avoid simplifying MULT to ASHIFT. (express_from_1): Wrap lines. * rtlanal.c (commutative_operand_precedence): Rename from operand_preference; export. * rtl.h: Declare it. * simplify-rtx.c (simplify_gen_binary): Tidy +/- const_int handling. (simplify_binary_operation): Invoke simplify_plus_minus on (CONST (PLUS ...)) as well. (struct simplify_plus_minus_op_data): New. (simplify_plus_minus_op_data_cmp): New. (simplify_plus_minus): Use them. Avoid infinite recursion with simplify_binary_operation wrt CONST. From-SVN: r45473
2001-09-07 20:14:32 +02:00
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
case MINUS:
/* None of these optimizations can be done for IEEE
floating point. */
if (TARGET_FLOAT_FORMAT == IEEE_FLOAT_FORMAT
Brad's -ffast-math breakup. From-SVN: r40300
2001-03-07 20:29:41 +01:00
&& FLOAT_MODE_P (mode) && ! flag_unsafe_math_optimizations)
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
break;
/* We can't assume x-x is 0 even with non-IEEE floating point,
but since it is zero except in very strange circumstances, we
Brad's -ffast-math breakup. From-SVN: r40300
2001-03-07 20:29:41 +01:00
will treat it as zero with -funsafe-math-optimizations. */
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
if (rtx_equal_p (trueop0, trueop1)
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
&& ! side_effects_p (op0)
Brad's -ffast-math breakup. From-SVN: r40300
2001-03-07 20:29:41 +01:00
&& (! FLOAT_MODE_P (mode) || flag_unsafe_math_optimizations))
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
return CONST0_RTX (mode);
/* Change subtraction from zero into negation. */
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
if (trueop0 == CONST0_RTX (mode))
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
return gen_rtx_NEG (mode, op1);
/* (-1 - a) is ~a. */
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
if (trueop0 == constm1_rtx)
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
return gen_rtx_NOT (mode, op1);
/* Subtracting 0 has no effect. */
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
if (trueop1 == CONST0_RTX (mode))
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
return op0;
/* See if this is something like X * C - X or vice versa or
if the multiplication is written as a shift. If so, we can
distribute and make a new multiply, shift, or maybe just
have X (if C is 2 in the example above). But don't make
real multiply if we didn't have one before. */
if (! FLOAT_MODE_P (mode))
{
HOST_WIDE_INT coeff0 = 1, coeff1 = 1;
rtx lhs = op0, rhs = op1;
int had_mult = 0;
if (GET_CODE (lhs) == NEG)
coeff0 = -1, lhs = XEXP (lhs, 0);
else if (GET_CODE (lhs) == MULT
&& GET_CODE (XEXP (lhs, 1)) == CONST_INT)
{
coeff0 = INTVAL (XEXP (lhs, 1)), lhs = XEXP (lhs, 0);
had_mult = 1;
}
else if (GET_CODE (lhs) == ASHIFT
&& GET_CODE (XEXP (lhs, 1)) == CONST_INT
&& INTVAL (XEXP (lhs, 1)) >= 0
&& INTVAL (XEXP (lhs, 1)) < HOST_BITS_PER_WIDE_INT)
{
coeff0 = ((HOST_WIDE_INT) 1) << INTVAL (XEXP (lhs, 1));
lhs = XEXP (lhs, 0);
}
if (GET_CODE (rhs) == NEG)
coeff1 = - 1, rhs = XEXP (rhs, 0);
else if (GET_CODE (rhs) == MULT
&& GET_CODE (XEXP (rhs, 1)) == CONST_INT)
{
coeff1 = INTVAL (XEXP (rhs, 1)), rhs = XEXP (rhs, 0);
had_mult = 1;
}
else if (GET_CODE (rhs) == ASHIFT
&& GET_CODE (XEXP (rhs, 1)) == CONST_INT
&& INTVAL (XEXP (rhs, 1)) >= 0
&& INTVAL (XEXP (rhs, 1)) < HOST_BITS_PER_WIDE_INT)
{
coeff1 = ((HOST_WIDE_INT) 1) << INTVAL (XEXP (rhs, 1));
rhs = XEXP (rhs, 0);
}
if (rtx_equal_p (lhs, rhs))
{
tem = simplify_gen_binary (MULT, mode, lhs,
GEN_INT (coeff0 - coeff1));
return (GET_CODE (tem) == MULT && ! had_mult) ? 0 : tem;
}
}
/* (a - (-b)) -> (a + b). */
if (GET_CODE (op1) == NEG)
return simplify_gen_binary (PLUS, mode, op0, XEXP (op1, 0));
/* If one of the operands is a PLUS or a MINUS, see if we can
simplify this by the associative law.
Don't use the associative law for floating point.
The inaccuracy makes it nonassociative,
and subtle programs can break if operations are associated. */
if (INTEGRAL_MODE_P (mode)
&& (GET_CODE (op0) == PLUS || GET_CODE (op0) == MINUS
loop.c (record_giv): Avoid simplifying MULT to ASHIFT. * loop.c (record_giv): Avoid simplifying MULT to ASHIFT. (express_from_1): Wrap lines. * rtlanal.c (commutative_operand_precedence): Rename from operand_preference; export. * rtl.h: Declare it. * simplify-rtx.c (simplify_gen_binary): Tidy +/- const_int handling. (simplify_binary_operation): Invoke simplify_plus_minus on (CONST (PLUS ...)) as well. (struct simplify_plus_minus_op_data): New. (simplify_plus_minus_op_data_cmp): New. (simplify_plus_minus): Use them. Avoid infinite recursion with simplify_binary_operation wrt CONST. From-SVN: r45473
2001-09-07 20:14:32 +02:00
|| GET_CODE (op1) == PLUS || GET_CODE (op1) == MINUS
|| (GET_CODE (op0) == CONST
&& GET_CODE (XEXP (op0, 0)) == PLUS)
|| (GET_CODE (op1) == CONST
&& GET_CODE (XEXP (op1, 0)) == PLUS))
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
&& (tem = simplify_plus_minus (code, mode, op0, op1)) != 0)
return tem;
/* Don't let a relocatable value get a negative coeff. */
if (GET_CODE (op1) == CONST_INT && GET_MODE (op0) != VOIDmode)
return plus_constant (op0, - INTVAL (op1));
/* (x - (x & y)) -> (x & ~y) */
if (GET_CODE (op1) == AND)
{
if (rtx_equal_p (op0, XEXP (op1, 0)))
return simplify_gen_binary (AND, mode, op0,
gen_rtx_NOT (mode, XEXP (op1, 1)));
if (rtx_equal_p (op0, XEXP (op1, 1)))
return simplify_gen_binary (AND, mode, op0,
gen_rtx_NOT (mode, XEXP (op1, 0)));
}
break;
case MULT:
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
if (trueop1 == constm1_rtx)
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
{
tem = simplify_unary_operation (NEG, mode, op0, mode);
return tem ? tem : gen_rtx_NEG (mode, op0);
}
/* In IEEE floating point, x*0 is not always 0. */
if ((TARGET_FLOAT_FORMAT != IEEE_FLOAT_FORMAT
Brad's -ffast-math breakup. From-SVN: r40300
2001-03-07 20:29:41 +01:00
|| ! FLOAT_MODE_P (mode) || flag_unsafe_math_optimizations)
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
&& trueop1 == CONST0_RTX (mode)
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
&& ! side_effects_p (op0))
return op1;
/* In IEEE floating point, x*1 is not equivalent to x for nans.
However, ANSI says we can drop signals,
so we can do this anyway. */
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
if (trueop1 == CONST1_RTX (mode))
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
return op0;
/* Convert multiply by constant power of two into shift unless
we are still generating RTL. This test is a kludge. */
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
if (GET_CODE (trueop1) == CONST_INT
&& (val = exact_log2 (INTVAL (trueop1))) >= 0
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
/* If the mode is larger than the host word size, and the
uppermost bit is set, then this isn't a power of two due
to implicit sign extension. */
&& (width <= HOST_BITS_PER_WIDE_INT
|| val != HOST_BITS_PER_WIDE_INT - 1)
&& ! rtx_equal_function_value_matters)
return gen_rtx_ASHIFT (mode, op0, GEN_INT (val));
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
if (GET_CODE (trueop1) == CONST_DOUBLE
&& GET_MODE_CLASS (GET_MODE (trueop1)) == MODE_FLOAT)
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
{
toplev.c (set_float_handler): Make static. * toplev.c (set_float_handler): Make static. * toplev.h: Don't prototype set_float_handler. * simplify-rtx.c: Don't include setjmp.h. (simplify_unary_real, simplify_binary_real, simplify_binary_is2orm1): New functions. (simplify_unary_operation, simplify_binary_operation): Use them, via do_float_handler. * fold-const.c: Don't include setjmp.h. (exact_real_inverse_1): New function. (exact_real_inverse): Use it, via do_float_handler. * varasm.c: Don't include setjmp.h. (assemble_real_1): New function. (assemble_real): Use it, via do_float_handler. Call internal_error if we get a trap here. * c-parse.in, cse.c, cselib.c, ch/lex.c, config/i386/i386.c, config/pj/pj.c, config/s390/s390.c: Don't include setjmp.h. * java/lex.h: Don't include setjmp.h. Don't define SET_FLOAT_HANDLER or prototype set_float_handler. From-SVN: r44815
2001-08-12 03:56:10 +02:00
struct simplify_binary_is2orm1_args args;
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
toplev.c (set_float_handler): Make static. * toplev.c (set_float_handler): Make static. * toplev.h: Don't prototype set_float_handler. * simplify-rtx.c: Don't include setjmp.h. (simplify_unary_real, simplify_binary_real, simplify_binary_is2orm1): New functions. (simplify_unary_operation, simplify_binary_operation): Use them, via do_float_handler. * fold-const.c: Don't include setjmp.h. (exact_real_inverse_1): New function. (exact_real_inverse): Use it, via do_float_handler. * varasm.c: Don't include setjmp.h. (assemble_real_1): New function. (assemble_real): Use it, via do_float_handler. Call internal_error if we get a trap here. * c-parse.in, cse.c, cselib.c, ch/lex.c, config/i386/i386.c, config/pj/pj.c, config/s390/s390.c: Don't include setjmp.h. * java/lex.h: Don't include setjmp.h. Don't define SET_FLOAT_HANDLER or prototype set_float_handler. From-SVN: r44815
2001-08-12 03:56:10 +02:00
args.value = trueop1;
if (! do_float_handler (simplify_binary_is2orm1, (PTR) &args))
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
return 0;
/* x*2 is x+x and x*(-1) is -x */
toplev.c (set_float_handler): Make static. * toplev.c (set_float_handler): Make static. * toplev.h: Don't prototype set_float_handler. * simplify-rtx.c: Don't include setjmp.h. (simplify_unary_real, simplify_binary_real, simplify_binary_is2orm1): New functions. (simplify_unary_operation, simplify_binary_operation): Use them, via do_float_handler. * fold-const.c: Don't include setjmp.h. (exact_real_inverse_1): New function. (exact_real_inverse): Use it, via do_float_handler. * varasm.c: Don't include setjmp.h. (assemble_real_1): New function. (assemble_real): Use it, via do_float_handler. Call internal_error if we get a trap here. * c-parse.in, cse.c, cselib.c, ch/lex.c, config/i386/i386.c, config/pj/pj.c, config/s390/s390.c: Don't include setjmp.h. * java/lex.h: Don't include setjmp.h. Don't define SET_FLOAT_HANDLER or prototype set_float_handler. From-SVN: r44815
2001-08-12 03:56:10 +02:00
if (args.is_2 && GET_MODE (op0) == mode)
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
return gen_rtx_PLUS (mode, op0, copy_rtx (op0));
toplev.c (set_float_handler): Make static. * toplev.c (set_float_handler): Make static. * toplev.h: Don't prototype set_float_handler. * simplify-rtx.c: Don't include setjmp.h. (simplify_unary_real, simplify_binary_real, simplify_binary_is2orm1): New functions. (simplify_unary_operation, simplify_binary_operation): Use them, via do_float_handler. * fold-const.c: Don't include setjmp.h. (exact_real_inverse_1): New function. (exact_real_inverse): Use it, via do_float_handler. * varasm.c: Don't include setjmp.h. (assemble_real_1): New function. (assemble_real): Use it, via do_float_handler. Call internal_error if we get a trap here. * c-parse.in, cse.c, cselib.c, ch/lex.c, config/i386/i386.c, config/pj/pj.c, config/s390/s390.c: Don't include setjmp.h. * java/lex.h: Don't include setjmp.h. Don't define SET_FLOAT_HANDLER or prototype set_float_handler. From-SVN: r44815
2001-08-12 03:56:10 +02:00
else if (args.is_m1 && GET_MODE (op0) == mode)
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
return gen_rtx_NEG (mode, op0);
}
break;
case IOR:
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
if (trueop1 == const0_rtx)
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
return op0;
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
if (GET_CODE (trueop1) == CONST_INT
&& ((INTVAL (trueop1) & GET_MODE_MASK (mode))
== GET_MODE_MASK (mode)))
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
return op1;
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
if (rtx_equal_p (trueop0, trueop1) && ! side_effects_p (op0))
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
return op0;
/* A | (~A) -> -1 */
if (((GET_CODE (op0) == NOT && rtx_equal_p (XEXP (op0, 0), op1))
|| (GET_CODE (op1) == NOT && rtx_equal_p (XEXP (op1, 0), op0)))
&& ! side_effects_p (op0)
&& GET_MODE_CLASS (mode) != MODE_CC)
return constm1_rtx;
break;
case XOR:
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
if (trueop1 == const0_rtx)
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
return op0;
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
if (GET_CODE (trueop1) == CONST_INT
&& ((INTVAL (trueop1) & GET_MODE_MASK (mode))
== GET_MODE_MASK (mode)))
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
return gen_rtx_NOT (mode, op0);
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
if (trueop0 == trueop1 && ! side_effects_p (op0)
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
&& GET_MODE_CLASS (mode) != MODE_CC)
return const0_rtx;
break;
case AND:
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
if (trueop1 == const0_rtx && ! side_effects_p (op0))
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
return const0_rtx;
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
if (GET_CODE (trueop1) == CONST_INT
&& ((INTVAL (trueop1) & GET_MODE_MASK (mode))
== GET_MODE_MASK (mode)))
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
return op0;
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
if (trueop0 == trueop1 && ! side_effects_p (op0)
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
&& GET_MODE_CLASS (mode) != MODE_CC)
return op0;
/* A & (~A) -> 0 */
if (((GET_CODE (op0) == NOT && rtx_equal_p (XEXP (op0, 0), op1))
|| (GET_CODE (op1) == NOT && rtx_equal_p (XEXP (op1, 0), op0)))
&& ! side_effects_p (op0)
&& GET_MODE_CLASS (mode) != MODE_CC)
return const0_rtx;
break;
case UDIV:
/* Convert divide by power of two into shift (divide by 1 handled
below). */
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
if (GET_CODE (trueop1) == CONST_INT
&& (arg1 = exact_log2 (INTVAL (trueop1))) > 0)
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
return gen_rtx_LSHIFTRT (mode, op0, GEN_INT (arg1));
/* ... fall through ... */
case DIV:
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
if (trueop1 == CONST1_RTX (mode))
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
return op0;
/* In IEEE floating point, 0/x is not always 0. */
if ((TARGET_FLOAT_FORMAT != IEEE_FLOAT_FORMAT
Brad's -ffast-math breakup. From-SVN: r40300
2001-03-07 20:29:41 +01:00
|| ! FLOAT_MODE_P (mode) || flag_unsafe_math_optimizations)
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
&& trueop0 == CONST0_RTX (mode)
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
&& ! side_effects_p (op1))
return op0;
#if ! defined (REAL_IS_NOT_DOUBLE) || defined (REAL_ARITHMETIC)
/* Change division by a constant into multiplication. Only do
Brad's -ffast-math breakup. From-SVN: r40300
2001-03-07 20:29:41 +01:00
this with -funsafe-math-optimizations. */
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
else if (GET_CODE (trueop1) == CONST_DOUBLE
&& GET_MODE_CLASS (GET_MODE (trueop1)) == MODE_FLOAT
&& trueop1 != CONST0_RTX (mode)
Brad's -ffast-math breakup. From-SVN: r40300
2001-03-07 20:29:41 +01:00
&& flag_unsafe_math_optimizations)
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
{
REAL_VALUE_TYPE d;
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
REAL_VALUE_FROM_CONST_DOUBLE (d, trueop1);
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
if (! REAL_VALUES_EQUAL (d, dconst0))
{
#if defined (REAL_ARITHMETIC)
REAL_ARITHMETIC (d, rtx_to_tree_code (DIV), dconst1, d);
return gen_rtx_MULT (mode, op0,
CONST_DOUBLE_FROM_REAL_VALUE (d, mode));
#else
return
gen_rtx_MULT (mode, op0,
CONST_DOUBLE_FROM_REAL_VALUE (1./d, mode));
#endif
}
}
#endif
break;
case UMOD:
/* Handle modulus by power of two (mod with 1 handled below). */
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
if (GET_CODE (trueop1) == CONST_INT
&& exact_log2 (INTVAL (trueop1)) > 0)
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
return gen_rtx_AND (mode, op0, GEN_INT (INTVAL (op1) - 1));
/* ... fall through ... */
case MOD:
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
if ((trueop0 == const0_rtx || trueop1 == const1_rtx)
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
&& ! side_effects_p (op0) && ! side_effects_p (op1))
return const0_rtx;
break;
case ROTATERT:
case ROTATE:
/* Rotating ~0 always results in ~0. */
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
if (GET_CODE (trueop0) == CONST_INT && width <= HOST_BITS_PER_WIDE_INT
&& (unsigned HOST_WIDE_INT) INTVAL (trueop0) == GET_MODE_MASK (mode)
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
&& ! side_effects_p (op1))
return op0;
/* ... fall through ... */
case ASHIFT:
case ASHIFTRT:
case LSHIFTRT:
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
if (trueop1 == const0_rtx)
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
return op0;
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
if (trueop0 == const0_rtx && ! side_effects_p (op1))
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
return op0;
break;
case SMIN:
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
if (width <= HOST_BITS_PER_WIDE_INT && GET_CODE (trueop1) == CONST_INT
&& INTVAL (trueop1) == (HOST_WIDE_INT) 1 << (width -1)
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
&& ! side_effects_p (op0))
return op1;
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
else if (rtx_equal_p (trueop0, trueop1) && ! side_effects_p (op0))
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
return op0;
break;
case SMAX:
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
if (width <= HOST_BITS_PER_WIDE_INT && GET_CODE (trueop1) == CONST_INT
&& ((unsigned HOST_WIDE_INT) INTVAL (trueop1)
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
== (unsigned HOST_WIDE_INT) GET_MODE_MASK (mode) >> 1)
&& ! side_effects_p (op0))
return op1;
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
else if (rtx_equal_p (trueop0, trueop1) && ! side_effects_p (op0))
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
return op0;
break;
case UMIN:
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
if (trueop1 == const0_rtx && ! side_effects_p (op0))
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
return op1;
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
else if (rtx_equal_p (trueop0, trueop1) && ! side_effects_p (op0))
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
return op0;
break;
case UMAX:
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
if (trueop1 == constm1_rtx && ! side_effects_p (op0))
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
return op1;
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
else if (rtx_equal_p (trueop0, trueop1) && ! side_effects_p (op0))
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
return op0;
break;
default:
abort ();
}
return 0;
}
/* Get the integer argument values in two forms:
zero-extended in ARG0, ARG1 and sign-extended in ARG0S, ARG1S. */
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
arg0 = INTVAL (trueop0);
arg1 = INTVAL (trueop1);
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
if (width < HOST_BITS_PER_WIDE_INT)
{
arg0 &= ((HOST_WIDE_INT) 1 << width) - 1;
arg1 &= ((HOST_WIDE_INT) 1 << width) - 1;
arg0s = arg0;
if (arg0s & ((HOST_WIDE_INT) 1 << (width - 1)))
arg0s |= ((HOST_WIDE_INT) (-1) << width);
arg1s = arg1;
if (arg1s & ((HOST_WIDE_INT) 1 << (width - 1)))
arg1s |= ((HOST_WIDE_INT) (-1) << width);
}
else
{
arg0s = arg0;
arg1s = arg1;
}
/* Compute the value of the arithmetic. */
switch (code)
{
case PLUS:
val = arg0s + arg1s;
break;
case MINUS:
val = arg0s - arg1s;
break;
case MULT:
val = arg0s * arg1s;
break;
case DIV:
simplify-rtx.c (simplify_binary_operation): Check for overflow when folding integer division and modulo operations. 2001-04-04 Diego Novillo <dnovillo@redhat.com> * simplify-rtx.c (simplify_binary_operation): Check for overflow when folding integer division and modulo operations. 2001-04-04 Diego Novillo <dnovillo@redhat.com> * gcc.c-torture/compile/20010404-1.c: New test. From-SVN: r41105
2001-04-05 04:27:47 +02:00
if (arg1s == 0
|| (arg0s == (HOST_WIDE_INT) 1 << (HOST_BITS_PER_WIDE_INT - 1)
&& arg1s == -1))
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
return 0;
val = arg0s / arg1s;
break;
case MOD:
simplify-rtx.c (simplify_binary_operation): Check for overflow when folding integer division and modulo operations. 2001-04-04 Diego Novillo <dnovillo@redhat.com> * simplify-rtx.c (simplify_binary_operation): Check for overflow when folding integer division and modulo operations. 2001-04-04 Diego Novillo <dnovillo@redhat.com> * gcc.c-torture/compile/20010404-1.c: New test. From-SVN: r41105
2001-04-05 04:27:47 +02:00
if (arg1s == 0
|| (arg0s == (HOST_WIDE_INT) 1 << (HOST_BITS_PER_WIDE_INT - 1)
&& arg1s == -1))
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
return 0;
val = arg0s % arg1s;
break;
case UDIV:
simplify-rtx.c (simplify_binary_operation): Check for overflow when folding integer division and modulo operations. 2001-04-04 Diego Novillo <dnovillo@redhat.com> * simplify-rtx.c (simplify_binary_operation): Check for overflow when folding integer division and modulo operations. 2001-04-04 Diego Novillo <dnovillo@redhat.com> * gcc.c-torture/compile/20010404-1.c: New test. From-SVN: r41105
2001-04-05 04:27:47 +02:00
if (arg1 == 0
|| (arg0s == (HOST_WIDE_INT) 1 << (HOST_BITS_PER_WIDE_INT - 1)
&& arg1s == -1))
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
return 0;
val = (unsigned HOST_WIDE_INT) arg0 / arg1;
break;
case UMOD:
simplify-rtx.c (simplify_binary_operation): Check for overflow when folding integer division and modulo operations. 2001-04-04 Diego Novillo <dnovillo@redhat.com> * simplify-rtx.c (simplify_binary_operation): Check for overflow when folding integer division and modulo operations. 2001-04-04 Diego Novillo <dnovillo@redhat.com> * gcc.c-torture/compile/20010404-1.c: New test. From-SVN: r41105
2001-04-05 04:27:47 +02:00
if (arg1 == 0
|| (arg0s == (HOST_WIDE_INT) 1 << (HOST_BITS_PER_WIDE_INT - 1)
&& arg1s == -1))
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
return 0;
val = (unsigned HOST_WIDE_INT) arg0 % arg1;
break;
case AND:
val = arg0 & arg1;
break;
case IOR:
val = arg0 | arg1;
break;
case XOR:
val = arg0 ^ arg1;
break;
case LSHIFTRT:
/* If shift count is undefined, don't fold it; let the machine do
what it wants. But truncate it if the machine will do that. */
if (arg1 < 0)
return 0;
#ifdef SHIFT_COUNT_TRUNCATED
if (SHIFT_COUNT_TRUNCATED)
arg1 %= width;
#endif
val = ((unsigned HOST_WIDE_INT) arg0) >> arg1;
break;
case ASHIFT:
if (arg1 < 0)
return 0;
#ifdef SHIFT_COUNT_TRUNCATED
if (SHIFT_COUNT_TRUNCATED)
arg1 %= width;
#endif
val = ((unsigned HOST_WIDE_INT) arg0) << arg1;
break;
case ASHIFTRT:
if (arg1 < 0)
return 0;
#ifdef SHIFT_COUNT_TRUNCATED
if (SHIFT_COUNT_TRUNCATED)
arg1 %= width;
#endif
val = arg0s >> arg1;
/* Bootstrap compiler may not have sign extended the right shift.
Manually extend the sign to insure bootstrap cc matches gcc. */
if (arg0s < 0 && arg1 > 0)
val |= ((HOST_WIDE_INT) -1) << (HOST_BITS_PER_WIDE_INT - arg1);
break;
case ROTATERT:
if (arg1 < 0)
return 0;
arg1 %= width;
val = ((((unsigned HOST_WIDE_INT) arg0) << (width - arg1))
| (((unsigned HOST_WIDE_INT) arg0) >> arg1));
break;
case ROTATE:
if (arg1 < 0)
return 0;
arg1 %= width;
val = ((((unsigned HOST_WIDE_INT) arg0) << arg1)
| (((unsigned HOST_WIDE_INT) arg0) >> (width - arg1)));
break;
case COMPARE:
/* Do nothing here. */
return 0;
case SMIN:
val = arg0s <= arg1s ? arg0s : arg1s;
break;
case UMIN:
val = ((unsigned HOST_WIDE_INT) arg0
<= (unsigned HOST_WIDE_INT) arg1 ? arg0 : arg1);
break;
case SMAX:
val = arg0s > arg1s ? arg0s : arg1s;
break;
case UMAX:
val = ((unsigned HOST_WIDE_INT) arg0
> (unsigned HOST_WIDE_INT) arg1 ? arg0 : arg1);
break;
default:
abort ();
}
val = trunc_int_for_mode (val, mode);
return GEN_INT (val);
}
/* Simplify a PLUS or MINUS, at least one of whose operands may be another
PLUS or MINUS.
Rather than test for specific case, we do this by a brute-force method
and do all possible simplifications until no more changes occur. Then
we rebuild the operation. */
loop.c (record_giv): Avoid simplifying MULT to ASHIFT. * loop.c (record_giv): Avoid simplifying MULT to ASHIFT. (express_from_1): Wrap lines. * rtlanal.c (commutative_operand_precedence): Rename from operand_preference; export. * rtl.h: Declare it. * simplify-rtx.c (simplify_gen_binary): Tidy +/- const_int handling. (simplify_binary_operation): Invoke simplify_plus_minus on (CONST (PLUS ...)) as well. (struct simplify_plus_minus_op_data): New. (simplify_plus_minus_op_data_cmp): New. (simplify_plus_minus): Use them. Avoid infinite recursion with simplify_binary_operation wrt CONST. From-SVN: r45473
2001-09-07 20:14:32 +02:00
struct simplify_plus_minus_op_data
{
rtx op;
int neg;
};
static int
simplify_plus_minus_op_data_cmp (p1, p2)
const void *p1;
const void *p2;
{
const struct simplify_plus_minus_op_data *d1 = p1;
const struct simplify_plus_minus_op_data *d2 = p2;
return (commutative_operand_precedence (d2->op)
- commutative_operand_precedence (d1->op));
}
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
static rtx
simplify_plus_minus (code, mode, op0, op1)
enum rtx_code code;
enum machine_mode mode;
rtx op0, op1;
{
loop.c (record_giv): Avoid simplifying MULT to ASHIFT. * loop.c (record_giv): Avoid simplifying MULT to ASHIFT. (express_from_1): Wrap lines. * rtlanal.c (commutative_operand_precedence): Rename from operand_preference; export. * rtl.h: Declare it. * simplify-rtx.c (simplify_gen_binary): Tidy +/- const_int handling. (simplify_binary_operation): Invoke simplify_plus_minus on (CONST (PLUS ...)) as well. (struct simplify_plus_minus_op_data): New. (simplify_plus_minus_op_data_cmp): New. (simplify_plus_minus): Use them. Avoid infinite recursion with simplify_binary_operation wrt CONST. From-SVN: r45473
2001-09-07 20:14:32 +02:00
struct simplify_plus_minus_op_data ops[8];
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
rtx result, tem;
loop.c (record_giv): Avoid simplifying MULT to ASHIFT. * loop.c (record_giv): Avoid simplifying MULT to ASHIFT. (express_from_1): Wrap lines. * rtlanal.c (commutative_operand_precedence): Rename from operand_preference; export. * rtl.h: Declare it. * simplify-rtx.c (simplify_gen_binary): Tidy +/- const_int handling. (simplify_binary_operation): Invoke simplify_plus_minus on (CONST (PLUS ...)) as well. (struct simplify_plus_minus_op_data): New. (simplify_plus_minus_op_data_cmp): New. (simplify_plus_minus): Use them. Avoid infinite recursion with simplify_binary_operation wrt CONST. From-SVN: r45473
2001-09-07 20:14:32 +02:00
int n_ops = 2, input_ops = 2, input_consts = 0, n_consts;
int first, negate, changed;
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
int i, j;
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 *) ops, 0, sizeof ops);
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
/* Set up the two operands and then expand them until nothing has been
changed. If we run out of room in our array, give up; this should
almost never happen. */
loop.c (record_giv): Avoid simplifying MULT to ASHIFT. * loop.c (record_giv): Avoid simplifying MULT to ASHIFT. (express_from_1): Wrap lines. * rtlanal.c (commutative_operand_precedence): Rename from operand_preference; export. * rtl.h: Declare it. * simplify-rtx.c (simplify_gen_binary): Tidy +/- const_int handling. (simplify_binary_operation): Invoke simplify_plus_minus on (CONST (PLUS ...)) as well. (struct simplify_plus_minus_op_data): New. (simplify_plus_minus_op_data_cmp): New. (simplify_plus_minus): Use them. Avoid infinite recursion with simplify_binary_operation wrt CONST. From-SVN: r45473
2001-09-07 20:14:32 +02:00
ops[0].op = op0;
ops[0].neg = 0;
ops[1].op = op1;
ops[1].neg = (code == MINUS);
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
loop.c (record_giv): Avoid simplifying MULT to ASHIFT. * loop.c (record_giv): Avoid simplifying MULT to ASHIFT. (express_from_1): Wrap lines. * rtlanal.c (commutative_operand_precedence): Rename from operand_preference; export. * rtl.h: Declare it. * simplify-rtx.c (simplify_gen_binary): Tidy +/- const_int handling. (simplify_binary_operation): Invoke simplify_plus_minus on (CONST (PLUS ...)) as well. (struct simplify_plus_minus_op_data): New. (simplify_plus_minus_op_data_cmp): New. (simplify_plus_minus): Use them. Avoid infinite recursion with simplify_binary_operation wrt CONST. From-SVN: r45473
2001-09-07 20:14:32 +02:00
do
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
{
changed = 0;
for (i = 0; i < n_ops; i++)
loop.c (record_giv): Avoid simplifying MULT to ASHIFT. * loop.c (record_giv): Avoid simplifying MULT to ASHIFT. (express_from_1): Wrap lines. * rtlanal.c (commutative_operand_precedence): Rename from operand_preference; export. * rtl.h: Declare it. * simplify-rtx.c (simplify_gen_binary): Tidy +/- const_int handling. (simplify_binary_operation): Invoke simplify_plus_minus on (CONST (PLUS ...)) as well. (struct simplify_plus_minus_op_data): New. (simplify_plus_minus_op_data_cmp): New. (simplify_plus_minus): Use them. Avoid infinite recursion with simplify_binary_operation wrt CONST. From-SVN: r45473
2001-09-07 20:14:32 +02:00
{
rtx this_op = ops[i].op;
int this_neg = ops[i].neg;
enum rtx_code this_code = GET_CODE (this_op);
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
loop.c (record_giv): Avoid simplifying MULT to ASHIFT. * loop.c (record_giv): Avoid simplifying MULT to ASHIFT. (express_from_1): Wrap lines. * rtlanal.c (commutative_operand_precedence): Rename from operand_preference; export. * rtl.h: Declare it. * simplify-rtx.c (simplify_gen_binary): Tidy +/- const_int handling. (simplify_binary_operation): Invoke simplify_plus_minus on (CONST (PLUS ...)) as well. (struct simplify_plus_minus_op_data): New. (simplify_plus_minus_op_data_cmp): New. (simplify_plus_minus): Use them. Avoid infinite recursion with simplify_binary_operation wrt CONST. From-SVN: r45473
2001-09-07 20:14:32 +02:00
switch (this_code)
{
case PLUS:
case MINUS:
if (n_ops == 7)
return 0;
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
loop.c (record_giv): Avoid simplifying MULT to ASHIFT. * loop.c (record_giv): Avoid simplifying MULT to ASHIFT. (express_from_1): Wrap lines. * rtlanal.c (commutative_operand_precedence): Rename from operand_preference; export. * rtl.h: Declare it. * simplify-rtx.c (simplify_gen_binary): Tidy +/- const_int handling. (simplify_binary_operation): Invoke simplify_plus_minus on (CONST (PLUS ...)) as well. (struct simplify_plus_minus_op_data): New. (simplify_plus_minus_op_data_cmp): New. (simplify_plus_minus): Use them. Avoid infinite recursion with simplify_binary_operation wrt CONST. From-SVN: r45473
2001-09-07 20:14:32 +02:00
ops[n_ops].op = XEXP (this_op, 1);
ops[n_ops].neg = (this_code == MINUS) ^ this_neg;
n_ops++;
ops[i].op = XEXP (this_op, 0);
input_ops++;
changed = 1;
break;
case NEG:
ops[i].op = XEXP (this_op, 0);
ops[i].neg = ! this_neg;
changed = 1;
break;
case CONST:
ops[i].op = XEXP (this_op, 0);
input_consts++;
changed = 1;
break;
case NOT:
/* ~a -> (-a - 1) */
if (n_ops != 7)
{
ops[n_ops].op = constm1_rtx;
ops[n_ops].neg = this_neg;
ops[i].op = XEXP (this_op, 0);
ops[i].neg = !this_neg;
changed = 1;
}
break;
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
loop.c (record_giv): Avoid simplifying MULT to ASHIFT. * loop.c (record_giv): Avoid simplifying MULT to ASHIFT. (express_from_1): Wrap lines. * rtlanal.c (commutative_operand_precedence): Rename from operand_preference; export. * rtl.h: Declare it. * simplify-rtx.c (simplify_gen_binary): Tidy +/- const_int handling. (simplify_binary_operation): Invoke simplify_plus_minus on (CONST (PLUS ...)) as well. (struct simplify_plus_minus_op_data): New. (simplify_plus_minus_op_data_cmp): New. (simplify_plus_minus): Use them. Avoid infinite recursion with simplify_binary_operation wrt CONST. From-SVN: r45473
2001-09-07 20:14:32 +02:00
case CONST_INT:
if (this_neg)
{
ops[i].op = GEN_INT (- INTVAL (this_op));
ops[i].neg = 0;
changed = 1;
}
break;
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
loop.c (record_giv): Avoid simplifying MULT to ASHIFT. * loop.c (record_giv): Avoid simplifying MULT to ASHIFT. (express_from_1): Wrap lines. * rtlanal.c (commutative_operand_precedence): Rename from operand_preference; export. * rtl.h: Declare it. * simplify-rtx.c (simplify_gen_binary): Tidy +/- const_int handling. (simplify_binary_operation): Invoke simplify_plus_minus on (CONST (PLUS ...)) as well. (struct simplify_plus_minus_op_data): New. (simplify_plus_minus_op_data_cmp): New. (simplify_plus_minus): Use them. Avoid infinite recursion with simplify_binary_operation wrt CONST. From-SVN: r45473
2001-09-07 20:14:32 +02:00
default:
break;
}
}
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
}
loop.c (record_giv): Avoid simplifying MULT to ASHIFT. * loop.c (record_giv): Avoid simplifying MULT to ASHIFT. (express_from_1): Wrap lines. * rtlanal.c (commutative_operand_precedence): Rename from operand_preference; export. * rtl.h: Declare it. * simplify-rtx.c (simplify_gen_binary): Tidy +/- const_int handling. (simplify_binary_operation): Invoke simplify_plus_minus on (CONST (PLUS ...)) as well. (struct simplify_plus_minus_op_data): New. (simplify_plus_minus_op_data_cmp): New. (simplify_plus_minus): Use them. Avoid infinite recursion with simplify_binary_operation wrt CONST. From-SVN: r45473
2001-09-07 20:14:32 +02:00
while (changed);
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
/* If we only have two operands, we can't do anything. */
if (n_ops <= 2)
loop.c (record_giv): Avoid simplifying MULT to ASHIFT. * loop.c (record_giv): Avoid simplifying MULT to ASHIFT. (express_from_1): Wrap lines. * rtlanal.c (commutative_operand_precedence): Rename from operand_preference; export. * rtl.h: Declare it. * simplify-rtx.c (simplify_gen_binary): Tidy +/- const_int handling. (simplify_binary_operation): Invoke simplify_plus_minus on (CONST (PLUS ...)) as well. (struct simplify_plus_minus_op_data): New. (simplify_plus_minus_op_data_cmp): New. (simplify_plus_minus): Use them. Avoid infinite recursion with simplify_binary_operation wrt CONST. From-SVN: r45473
2001-09-07 20:14:32 +02:00
return NULL_RTX;
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
/* Now simplify each pair of operands until nothing changes. The first
time through just simplify constants against each other. */
loop.c (record_giv): Avoid simplifying MULT to ASHIFT. * loop.c (record_giv): Avoid simplifying MULT to ASHIFT. (express_from_1): Wrap lines. * rtlanal.c (commutative_operand_precedence): Rename from operand_preference; export. * rtl.h: Declare it. * simplify-rtx.c (simplify_gen_binary): Tidy +/- const_int handling. (simplify_binary_operation): Invoke simplify_plus_minus on (CONST (PLUS ...)) as well. (struct simplify_plus_minus_op_data): New. (simplify_plus_minus_op_data_cmp): New. (simplify_plus_minus): Use them. Avoid infinite recursion with simplify_binary_operation wrt CONST. From-SVN: r45473
2001-09-07 20:14:32 +02:00
first = 1;
do
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
{
changed = first;
for (i = 0; i < n_ops - 1; i++)
for (j = i + 1; j < n_ops; j++)
loop.c (record_giv): Avoid simplifying MULT to ASHIFT. * loop.c (record_giv): Avoid simplifying MULT to ASHIFT. (express_from_1): Wrap lines. * rtlanal.c (commutative_operand_precedence): Rename from operand_preference; export. * rtl.h: Declare it. * simplify-rtx.c (simplify_gen_binary): Tidy +/- const_int handling. (simplify_binary_operation): Invoke simplify_plus_minus on (CONST (PLUS ...)) as well. (struct simplify_plus_minus_op_data): New. (simplify_plus_minus_op_data_cmp): New. (simplify_plus_minus): Use them. Avoid infinite recursion with simplify_binary_operation wrt CONST. From-SVN: r45473
2001-09-07 20:14:32 +02:00
{
rtx lhs = ops[i].op, rhs = ops[j].op;
int lneg = ops[i].neg, rneg = ops[j].neg;
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
loop.c (record_giv): Avoid simplifying MULT to ASHIFT. * loop.c (record_giv): Avoid simplifying MULT to ASHIFT. (express_from_1): Wrap lines. * rtlanal.c (commutative_operand_precedence): Rename from operand_preference; export. * rtl.h: Declare it. * simplify-rtx.c (simplify_gen_binary): Tidy +/- const_int handling. (simplify_binary_operation): Invoke simplify_plus_minus on (CONST (PLUS ...)) as well. (struct simplify_plus_minus_op_data): New. (simplify_plus_minus_op_data_cmp): New. (simplify_plus_minus): Use them. Avoid infinite recursion with simplify_binary_operation wrt CONST. From-SVN: r45473
2001-09-07 20:14:32 +02:00
if (lhs != 0 && rhs != 0
&& (! first || (CONSTANT_P (lhs) && CONSTANT_P (rhs))))
{
enum rtx_code ncode = PLUS;
if (lneg != rneg)
{
ncode = MINUS;
if (lneg)
tem = lhs, lhs = rhs, rhs = tem;
}
else if (swap_commutative_operands_p (lhs, rhs))
tem = lhs, lhs = rhs, rhs = tem;
tem = simplify_binary_operation (ncode, mode, lhs, rhs);
/* Reject "simplifications" that just wrap the two
arguments in a CONST. Failure to do so can result
in infinite recursion with simplify_binary_operation
when it calls us to simplify CONST operations. */
if (tem
&& ! (GET_CODE (tem) == CONST
&& GET_CODE (XEXP (tem, 0)) == ncode
&& XEXP (XEXP (tem, 0), 0) == lhs
&& XEXP (XEXP (tem, 0), 1) == rhs))
{
lneg &= rneg;
if (GET_CODE (tem) == NEG)
tem = XEXP (tem, 0), lneg = !lneg;
if (GET_CODE (tem) == CONST_INT && lneg)
tem = GEN_INT (- INTVAL (tem)), lneg = 0;
ops[i].op = tem;
ops[i].neg = lneg;
ops[j].op = NULL_RTX;
changed = 1;
}
}
}
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
first = 0;
}
loop.c (record_giv): Avoid simplifying MULT to ASHIFT. * loop.c (record_giv): Avoid simplifying MULT to ASHIFT. (express_from_1): Wrap lines. * rtlanal.c (commutative_operand_precedence): Rename from operand_preference; export. * rtl.h: Declare it. * simplify-rtx.c (simplify_gen_binary): Tidy +/- const_int handling. (simplify_binary_operation): Invoke simplify_plus_minus on (CONST (PLUS ...)) as well. (struct simplify_plus_minus_op_data): New. (simplify_plus_minus_op_data_cmp): New. (simplify_plus_minus): Use them. Avoid infinite recursion with simplify_binary_operation wrt CONST. From-SVN: r45473
2001-09-07 20:14:32 +02:00
while (changed);
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
loop.c (record_giv): Avoid simplifying MULT to ASHIFT. * loop.c (record_giv): Avoid simplifying MULT to ASHIFT. (express_from_1): Wrap lines. * rtlanal.c (commutative_operand_precedence): Rename from operand_preference; export. * rtl.h: Declare it. * simplify-rtx.c (simplify_gen_binary): Tidy +/- const_int handling. (simplify_binary_operation): Invoke simplify_plus_minus on (CONST (PLUS ...)) as well. (struct simplify_plus_minus_op_data): New. (simplify_plus_minus_op_data_cmp): New. (simplify_plus_minus): Use them. Avoid infinite recursion with simplify_binary_operation wrt CONST. From-SVN: r45473
2001-09-07 20:14:32 +02:00
/* Pack all the operands to the lower-numbered entries. */
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
for (i = 0, j = 0; j < n_ops; j++)
loop.c (record_giv): Avoid simplifying MULT to ASHIFT. * loop.c (record_giv): Avoid simplifying MULT to ASHIFT. (express_from_1): Wrap lines. * rtlanal.c (commutative_operand_precedence): Rename from operand_preference; export. * rtl.h: Declare it. * simplify-rtx.c (simplify_gen_binary): Tidy +/- const_int handling. (simplify_binary_operation): Invoke simplify_plus_minus on (CONST (PLUS ...)) as well. (struct simplify_plus_minus_op_data): New. (simplify_plus_minus_op_data_cmp): New. (simplify_plus_minus): Use them. Avoid infinite recursion with simplify_binary_operation wrt CONST. From-SVN: r45473
2001-09-07 20:14:32 +02:00
if (ops[j].op)
ops[i++] = ops[j];
n_ops = i;
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
loop.c (record_giv): Avoid simplifying MULT to ASHIFT. * loop.c (record_giv): Avoid simplifying MULT to ASHIFT. (express_from_1): Wrap lines. * rtlanal.c (commutative_operand_precedence): Rename from operand_preference; export. * rtl.h: Declare it. * simplify-rtx.c (simplify_gen_binary): Tidy +/- const_int handling. (simplify_binary_operation): Invoke simplify_plus_minus on (CONST (PLUS ...)) as well. (struct simplify_plus_minus_op_data): New. (simplify_plus_minus_op_data_cmp): New. (simplify_plus_minus): Use them. Avoid infinite recursion with simplify_binary_operation wrt CONST. From-SVN: r45473
2001-09-07 20:14:32 +02:00
/* Sort the operations based on swap_commutative_operands_p. */
qsort (ops, n_ops, sizeof (*ops), simplify_plus_minus_op_data_cmp);
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
loop.c (record_giv): Avoid simplifying MULT to ASHIFT. * loop.c (record_giv): Avoid simplifying MULT to ASHIFT. (express_from_1): Wrap lines. * rtlanal.c (commutative_operand_precedence): Rename from operand_preference; export. * rtl.h: Declare it. * simplify-rtx.c (simplify_gen_binary): Tidy +/- const_int handling. (simplify_binary_operation): Invoke simplify_plus_minus on (CONST (PLUS ...)) as well. (struct simplify_plus_minus_op_data): New. (simplify_plus_minus_op_data_cmp): New. (simplify_plus_minus): Use them. Avoid infinite recursion with simplify_binary_operation wrt CONST. From-SVN: r45473
2001-09-07 20:14:32 +02:00
/* We suppressed creation of trivial CONST expressions in the
combination loop to avoid recursion. Create one manually now.
The combination loop should have ensured that there is exactly
one CONST_INT, and the sort will have ensured that it is last
in the array and that any other constant will be next-to-last. */
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
loop.c (record_giv): Avoid simplifying MULT to ASHIFT. * loop.c (record_giv): Avoid simplifying MULT to ASHIFT. (express_from_1): Wrap lines. * rtlanal.c (commutative_operand_precedence): Rename from operand_preference; export. * rtl.h: Declare it. * simplify-rtx.c (simplify_gen_binary): Tidy +/- const_int handling. (simplify_binary_operation): Invoke simplify_plus_minus on (CONST (PLUS ...)) as well. (struct simplify_plus_minus_op_data): New. (simplify_plus_minus_op_data_cmp): New. (simplify_plus_minus): Use them. Avoid infinite recursion with simplify_binary_operation wrt CONST. From-SVN: r45473
2001-09-07 20:14:32 +02:00
if (n_ops > 1
&& GET_CODE (ops[n_ops - 1].op) == CONST_INT
&& CONSTANT_P (ops[n_ops - 2].op))
{
HOST_WIDE_INT value = INTVAL (ops[n_ops - 1].op);
simplify-rtx.c (simplify_plus_minus): Negate constant iff its neg field is different to previous argument's neg field. * simplify-rtx.c (simplify_plus_minus): Negate constant iff its neg field is different to previous argument's neg field. * gcc.c-torture/execute/20011019-1.c: New test. From-SVN: r46356
2001-10-19 21:28:03 +02:00
if (ops[n_ops - 1].neg ^ ops[n_ops - 2].neg)
loop.c (record_giv): Avoid simplifying MULT to ASHIFT. * loop.c (record_giv): Avoid simplifying MULT to ASHIFT. (express_from_1): Wrap lines. * rtlanal.c (commutative_operand_precedence): Rename from operand_preference; export. * rtl.h: Declare it. * simplify-rtx.c (simplify_gen_binary): Tidy +/- const_int handling. (simplify_binary_operation): Invoke simplify_plus_minus on (CONST (PLUS ...)) as well. (struct simplify_plus_minus_op_data): New. (simplify_plus_minus_op_data_cmp): New. (simplify_plus_minus): Use them. Avoid infinite recursion with simplify_binary_operation wrt CONST. From-SVN: r45473
2001-09-07 20:14:32 +02:00
value = -value;
ops[n_ops - 2].op = plus_constant (ops[n_ops - 2].op, value);
n_ops--;
}
/* Count the number of CONSTs that we generated. */
n_consts = 0;
for (i = 0; i < n_ops; i++)
if (GET_CODE (ops[i].op) == CONST)
n_consts++;
/* Give up if we didn't reduce the number of operands we had. Make
sure we count a CONST as two operands. If we have the same
number of operands, but have made more CONSTs than before, this
is also an improvement, so accept it. */
if (n_ops + n_consts > input_ops
|| (n_ops + n_consts == input_ops && n_consts <= input_consts))
return NULL_RTX;
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
/* Put a non-negated operand first. If there aren't any, make all
operands positive and negate the whole thing later. */
loop.c (record_giv): Avoid simplifying MULT to ASHIFT. * loop.c (record_giv): Avoid simplifying MULT to ASHIFT. (express_from_1): Wrap lines. * rtlanal.c (commutative_operand_precedence): Rename from operand_preference; export. * rtl.h: Declare it. * simplify-rtx.c (simplify_gen_binary): Tidy +/- const_int handling. (simplify_binary_operation): Invoke simplify_plus_minus on (CONST (PLUS ...)) as well. (struct simplify_plus_minus_op_data): New. (simplify_plus_minus_op_data_cmp): New. (simplify_plus_minus): Use them. Avoid infinite recursion with simplify_binary_operation wrt CONST. From-SVN: r45473
2001-09-07 20:14:32 +02:00
negate = 0;
for (i = 0; i < n_ops && ops[i].neg; i++)
continue;
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
if (i == n_ops)
{
for (i = 0; i < n_ops; i++)
loop.c (record_giv): Avoid simplifying MULT to ASHIFT. * loop.c (record_giv): Avoid simplifying MULT to ASHIFT. (express_from_1): Wrap lines. * rtlanal.c (commutative_operand_precedence): Rename from operand_preference; export. * rtl.h: Declare it. * simplify-rtx.c (simplify_gen_binary): Tidy +/- const_int handling. (simplify_binary_operation): Invoke simplify_plus_minus on (CONST (PLUS ...)) as well. (struct simplify_plus_minus_op_data): New. (simplify_plus_minus_op_data_cmp): New. (simplify_plus_minus): Use them. Avoid infinite recursion with simplify_binary_operation wrt CONST. From-SVN: r45473
2001-09-07 20:14:32 +02:00
ops[i].neg = 0;
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
negate = 1;
}
else if (i != 0)
{
loop.c (record_giv): Avoid simplifying MULT to ASHIFT. * loop.c (record_giv): Avoid simplifying MULT to ASHIFT. (express_from_1): Wrap lines. * rtlanal.c (commutative_operand_precedence): Rename from operand_preference; export. * rtl.h: Declare it. * simplify-rtx.c (simplify_gen_binary): Tidy +/- const_int handling. (simplify_binary_operation): Invoke simplify_plus_minus on (CONST (PLUS ...)) as well. (struct simplify_plus_minus_op_data): New. (simplify_plus_minus_op_data_cmp): New. (simplify_plus_minus): Use them. Avoid infinite recursion with simplify_binary_operation wrt CONST. From-SVN: r45473
2001-09-07 20:14:32 +02:00
tem = ops[0].op;
ops[0] = ops[i];
ops[i].op = tem;
ops[i].neg = 1;
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
}
/* Now make the result by performing the requested operations. */
loop.c (record_giv): Avoid simplifying MULT to ASHIFT. * loop.c (record_giv): Avoid simplifying MULT to ASHIFT. (express_from_1): Wrap lines. * rtlanal.c (commutative_operand_precedence): Rename from operand_preference; export. * rtl.h: Declare it. * simplify-rtx.c (simplify_gen_binary): Tidy +/- const_int handling. (simplify_binary_operation): Invoke simplify_plus_minus on (CONST (PLUS ...)) as well. (struct simplify_plus_minus_op_data): New. (simplify_plus_minus_op_data_cmp): New. (simplify_plus_minus): Use them. Avoid infinite recursion with simplify_binary_operation wrt CONST. From-SVN: r45473
2001-09-07 20:14:32 +02:00
result = ops[0].op;
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
for (i = 1; i < n_ops; i++)
loop.c (record_giv): Avoid simplifying MULT to ASHIFT. * loop.c (record_giv): Avoid simplifying MULT to ASHIFT. (express_from_1): Wrap lines. * rtlanal.c (commutative_operand_precedence): Rename from operand_preference; export. * rtl.h: Declare it. * simplify-rtx.c (simplify_gen_binary): Tidy +/- const_int handling. (simplify_binary_operation): Invoke simplify_plus_minus on (CONST (PLUS ...)) as well. (struct simplify_plus_minus_op_data): New. (simplify_plus_minus_op_data_cmp): New. (simplify_plus_minus): Use them. Avoid infinite recursion with simplify_binary_operation wrt CONST. From-SVN: r45473
2001-09-07 20:14:32 +02:00
result = gen_rtx_fmt_ee (ops[i].neg ? MINUS : PLUS,
mode, result, ops[i].op);
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
return negate ? gen_rtx_NEG (mode, result) : result;
}
struct cfc_args
{
[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
rtx op0, op1; /* Input */
int equal, op0lt, op1lt; /* Output */
simplify-rtx.c (cfc_args): add "unordered" field. * simplify-rtx.c (cfc_args): add "unordered" field. (check_fold_consts): Set unordered field. (simplify_relational_operation): Simplify the unordered comparisons. * reg-stack.c (swap_rtx_condition): Ensure that the transformation is valid. * emit-rtl.c (try_split): Fix code to mark labels. * jump.c (mark_jump_label): Make global. * rtl.h (mark_jump_label): Declare. * predict.c (estimate_probability): Handle unordred comparisons. From-SVN: r38711
2001-01-05 16:34:39 +01:00
int unordered;
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
};
static void
check_fold_consts (data)
PTR data;
{
[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
struct cfc_args *args = (struct cfc_args *) data;
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
REAL_VALUE_TYPE d0, d1;
simplify-rtx.c (cfc_args): add "unordered" field. * simplify-rtx.c (cfc_args): add "unordered" field. (check_fold_consts): Set unordered field. (simplify_relational_operation): Simplify the unordered comparisons. * reg-stack.c (swap_rtx_condition): Ensure that the transformation is valid. * emit-rtl.c (try_split): Fix code to mark labels. * jump.c (mark_jump_label): Make global. * rtl.h (mark_jump_label): Declare. * predict.c (estimate_probability): Handle unordred comparisons. From-SVN: r38711
2001-01-05 16:34:39 +01:00
/* We may possibly raise an exception while reading the value. */
args->unordered = 1;
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
REAL_VALUE_FROM_CONST_DOUBLE (d0, args->op0);
REAL_VALUE_FROM_CONST_DOUBLE (d1, args->op1);
simplify-rtx.c (cfc_args): add "unordered" field. * simplify-rtx.c (cfc_args): add "unordered" field. (check_fold_consts): Set unordered field. (simplify_relational_operation): Simplify the unordered comparisons. * reg-stack.c (swap_rtx_condition): Ensure that the transformation is valid. * emit-rtl.c (try_split): Fix code to mark labels. * jump.c (mark_jump_label): Make global. * rtl.h (mark_jump_label): Declare. * predict.c (estimate_probability): Handle unordred comparisons. From-SVN: r38711
2001-01-05 16:34:39 +01:00
/* Comparisons of Inf versus Inf are ordered. */
if (REAL_VALUE_ISNAN (d0)
|| REAL_VALUE_ISNAN (d1))
return;
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
args->equal = REAL_VALUES_EQUAL (d0, d1);
args->op0lt = REAL_VALUES_LESS (d0, d1);
args->op1lt = REAL_VALUES_LESS (d1, d0);
simplify-rtx.c (cfc_args): add "unordered" field. * simplify-rtx.c (cfc_args): add "unordered" field. (check_fold_consts): Set unordered field. (simplify_relational_operation): Simplify the unordered comparisons. * reg-stack.c (swap_rtx_condition): Ensure that the transformation is valid. * emit-rtl.c (try_split): Fix code to mark labels. * jump.c (mark_jump_label): Make global. * rtl.h (mark_jump_label): Declare. * predict.c (estimate_probability): Handle unordred comparisons. From-SVN: r38711
2001-01-05 16:34:39 +01:00
args->unordered = 0;
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
}
/* Like simplify_binary_operation except used for relational operators.
MODE is the mode of the operands, not that of the result. If MODE
is VOIDmode, both operands must also be VOIDmode and we compare the
operands in "infinite precision".
If no simplification is possible, this function returns zero. Otherwise,
it returns either const_true_rtx or const0_rtx. */
rtx
simplify_relational_operation (code, mode, op0, op1)
enum rtx_code code;
enum machine_mode mode;
rtx op0, op1;
{
int equal, op0lt, op0ltu, op1lt, op1ltu;
rtx tem;
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
rtx trueop0;
rtx trueop1;
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
simplify-rtx.c (simplify_relational_operation): Verify that mode == VOIDmode implies both operands to be VOIDmode. * simplify-rtx.c (simplify_relational_operation): Verify that mode == VOIDmode implies both operands to be VOIDmode. (simplify_ternary_operation): Compute properly the mode of comparison. * combine.c (combine_simplify_rtx): Likewise. From-SVN: r35343
2000-07-30 20:13:10 +02:00
if (mode == VOIDmode
&& (GET_MODE (op0) != VOIDmode
|| GET_MODE (op1) != VOIDmode))
simplify-rtx.c (simplify_rtx): Don't pass VOIDmode to simplify_relational_operation() unless... * simplify-rtx.c (simplify_rtx): Don't pass VOIDmode to simplify_relational_operation() unless both operands are of VOIDmode. * cse.c (fold_rtx): Likewise. From-SVN: r35904
2000-08-23 09:59:06 +02:00
abort ();
simplify-rtx.c (simplify_relational_operation): Verify that mode == VOIDmode implies both operands to be VOIDmode. * simplify-rtx.c (simplify_relational_operation): Verify that mode == VOIDmode implies both operands to be VOIDmode. (simplify_ternary_operation): Compute properly the mode of comparison. * combine.c (combine_simplify_rtx): Likewise. From-SVN: r35343
2000-07-30 20:13:10 +02:00
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
/* If op0 is a compare, extract the comparison arguments from it. */
if (GET_CODE (op0) == COMPARE && op1 == const0_rtx)
op1 = XEXP (op0, 1), op0 = XEXP (op0, 0);
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
trueop0 = avoid_constant_pool_reference (op0);
trueop1 = avoid_constant_pool_reference (op1);
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
/* We can't simplify MODE_CC values since we don't know what the
actual comparison is. */
if (GET_MODE_CLASS (GET_MODE (op0)) == MODE_CC
#ifdef HAVE_cc0
|| op0 == cc0_rtx
#endif
)
return 0;
simplify-rtx.c (simplify_relational_operation): Canonicalize constant to op1 for testing. * simplify-rtx.c (simplify_relational_operation): Canonicalize constant to op1 for testing. From-SVN: r31825
2000-02-06 11:56:56 +01:00
/* Make sure the constant is second. */
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
if (swap_commutative_operands_p (trueop0, trueop1))
simplify-rtx.c (simplify_relational_operation): Canonicalize constant to op1 for testing. * simplify-rtx.c (simplify_relational_operation): Canonicalize constant to op1 for testing. From-SVN: r31825
2000-02-06 11:56:56 +01:00
{
tem = op0, op0 = op1, op1 = tem;
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
tem = trueop0, trueop0 = trueop1, trueop1 = tem;
simplify-rtx.c (simplify_relational_operation): Canonicalize constant to op1 for testing. * simplify-rtx.c (simplify_relational_operation): Canonicalize constant to op1 for testing. From-SVN: r31825
2000-02-06 11:56:56 +01:00
code = swap_condition (code);
}
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
/* For integer comparisons of A and B maybe we can simplify A - B and can
then simplify a comparison of that with zero. If A and B are both either
a register or a CONST_INT, this can't help; testing for these cases will
prevent infinite recursion here and speed things up.
If CODE is an unsigned comparison, then we can never do this optimization,
because it gives an incorrect result if the subtraction wraps around zero.
ANSI C defines unsigned operations such that they never overflow, and
thus such cases can not be ignored. */
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
if (INTEGRAL_MODE_P (mode) && trueop1 != const0_rtx
&& ! ((GET_CODE (op0) == REG || GET_CODE (trueop0) == CONST_INT)
&& (GET_CODE (op1) == REG || GET_CODE (trueop1) == CONST_INT))
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
&& 0 != (tem = simplify_binary_operation (MINUS, mode, op0, op1))
&& code != GTU && code != GEU && code != LTU && code != LEU)
return simplify_relational_operation (signed_condition (code),
mode, tem, const0_rtx);
Brad's -ffast-math breakup. From-SVN: r40300
2001-03-07 20:29:41 +01:00
if (flag_unsafe_math_optimizations && code == ORDERED)
simplify-rtx.c (simplify_relational_operation): Always simplify ORDERED and UNORDERED when FLAG_FAST_MATH. * simplify-rtx.c (simplify_relational_operation): Always simplify ORDERED and UNORDERED when FLAG_FAST_MATH. Handle properly UNLE and UNGE. From-SVN: r38775
2001-01-07 14:40:09 +01:00
return const_true_rtx;
Brad's -ffast-math breakup. From-SVN: r40300
2001-03-07 20:29:41 +01:00
if (flag_unsafe_math_optimizations && code == UNORDERED)
simplify-rtx.c (simplify_relational_operation): Always simplify ORDERED and UNORDERED when FLAG_FAST_MATH. * simplify-rtx.c (simplify_relational_operation): Always simplify ORDERED and UNORDERED when FLAG_FAST_MATH. Handle properly UNLE and UNGE. From-SVN: r38775
2001-01-07 14:40:09 +01:00
return const0_rtx;
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
/* For non-IEEE floating-point, if the two operands are equal, we know the
result. */
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
if (rtx_equal_p (trueop0, trueop1)
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
&& (TARGET_FLOAT_FORMAT != IEEE_FLOAT_FORMAT
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
|| ! FLOAT_MODE_P (GET_MODE (trueop0))
Brad's -ffast-math breakup. From-SVN: r40300
2001-03-07 20:29:41 +01:00
|| flag_unsafe_math_optimizations))
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
equal = 1, op0lt = 0, op0ltu = 0, op1lt = 0, op1ltu = 0;
/* If the operands are floating-point constants, see if we can fold
the result. */
#if ! defined (REAL_IS_NOT_DOUBLE) || defined (REAL_ARITHMETIC)
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
else if (GET_CODE (trueop0) == CONST_DOUBLE
&& GET_CODE (trueop1) == CONST_DOUBLE
&& GET_MODE_CLASS (GET_MODE (trueop0)) == MODE_FLOAT)
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
{
struct cfc_args args;
/* Setup input for check_fold_consts() */
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
args.op0 = trueop0;
args.op1 = trueop1;
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
simplify-rtx.c (cfc_args): add "unordered" field. * simplify-rtx.c (cfc_args): add "unordered" field. (check_fold_consts): Set unordered field. (simplify_relational_operation): Simplify the unordered comparisons. * reg-stack.c (swap_rtx_condition): Ensure that the transformation is valid. * emit-rtl.c (try_split): Fix code to mark labels. * jump.c (mark_jump_label): Make global. * rtl.h (mark_jump_label): Declare. * predict.c (estimate_probability): Handle unordred comparisons. From-SVN: r38711
2001-01-05 16:34:39 +01:00
cselib.c: New file, from simplify-rtx.c. * cselib.c: New file, from simplify-rtx.c. * simplify-rtx.c: Remove cselib parts. * Makefile.in: Add cselib.o. From-SVN: r39611
2001-02-13 00:15:38 +01:00
if (!do_float_handler (check_fold_consts, (PTR) &args))
simplify-rtx.c (cfc_args): add "unordered" field. * simplify-rtx.c (cfc_args): add "unordered" field. (check_fold_consts): Set unordered field. (simplify_relational_operation): Simplify the unordered comparisons. * reg-stack.c (swap_rtx_condition): Ensure that the transformation is valid. * emit-rtl.c (try_split): Fix code to mark labels. * jump.c (mark_jump_label): Make global. * rtl.h (mark_jump_label): Declare. * predict.c (estimate_probability): Handle unordred comparisons. From-SVN: r38711
2001-01-05 16:34:39 +01:00
args.unordered = 1;
if (args.unordered)
switch (code)
{
case UNEQ:
case UNLT:
case UNGT:
case UNLE:
case UNGE:
case NE:
case UNORDERED:
return const_true_rtx;
case EQ:
case LT:
case GT:
case LE:
case GE:
case LTGT:
case ORDERED:
return const0_rtx;
default:
return 0;
}
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
/* Receive output from check_fold_consts() */
equal = args.equal;
op0lt = op0ltu = args.op0lt;
op1lt = op1ltu = args.op1lt;
}
#endif /* not REAL_IS_NOT_DOUBLE, or REAL_ARITHMETIC */
/* Otherwise, see if the operands are both integers. */
else if ((GET_MODE_CLASS (mode) == MODE_INT || mode == VOIDmode)
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
&& (GET_CODE (trueop0) == CONST_DOUBLE
|| GET_CODE (trueop0) == CONST_INT)
&& (GET_CODE (trueop1) == CONST_DOUBLE
|| GET_CODE (trueop1) == CONST_INT))
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
{
int width = GET_MODE_BITSIZE (mode);
HOST_WIDE_INT l0s, h0s, l1s, h1s;
unsigned HOST_WIDE_INT l0u, h0u, l1u, h1u;
/* Get the two words comprising each integer constant. */
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
if (GET_CODE (trueop0) == CONST_DOUBLE)
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
{
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
l0u = l0s = CONST_DOUBLE_LOW (trueop0);
h0u = h0s = CONST_DOUBLE_HIGH (trueop0);
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
}
else
{
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
l0u = l0s = INTVAL (trueop0);
simplify-rtx.c: Rename macro SIGN_EXTEND to HWI_SIGN_EXTEND. * simplify-rtx.c: Rename macro SIGN_EXTEND to HWI_SIGN_EXTEND. All callers changed. From-SVN: r34141
2000-05-24 22:26:54 +02:00
h0u = h0s = HWI_SIGN_EXTEND (l0s);
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
}
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
if (GET_CODE (trueop1) == CONST_DOUBLE)
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
{
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
l1u = l1s = CONST_DOUBLE_LOW (trueop1);
h1u = h1s = CONST_DOUBLE_HIGH (trueop1);
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
}
else
{
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
l1u = l1s = INTVAL (trueop1);
simplify-rtx.c: Rename macro SIGN_EXTEND to HWI_SIGN_EXTEND. * simplify-rtx.c: Rename macro SIGN_EXTEND to HWI_SIGN_EXTEND. All callers changed. From-SVN: r34141
2000-05-24 22:26:54 +02:00
h1u = h1s = HWI_SIGN_EXTEND (l1s);
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
}
/* If WIDTH is nonzero and smaller than HOST_BITS_PER_WIDE_INT,
we have to sign or zero-extend the values. */
if (width != 0 && width < HOST_BITS_PER_WIDE_INT)
{
l0u &= ((HOST_WIDE_INT) 1 << width) - 1;
l1u &= ((HOST_WIDE_INT) 1 << width) - 1;
if (l0s & ((HOST_WIDE_INT) 1 << (width - 1)))
l0s |= ((HOST_WIDE_INT) (-1) << width);
if (l1s & ((HOST_WIDE_INT) 1 << (width - 1)))
l1s |= ((HOST_WIDE_INT) (-1) << width);
}
simplify-rtx.c (simplify_relational_operation): Sign extend low words before sign extending to high words. * simplify-rtx.c (simplify_relational_operation): Sign extend low words before sign extending to high words. From-SVN: r37061
2000-10-26 01:02:14 +02:00
if (width != 0 && width <= HOST_BITS_PER_WIDE_INT)
h0u = h1u = 0, h0s = HWI_SIGN_EXTEND (l0s), h1s = HWI_SIGN_EXTEND (l1s);
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
equal = (h0u == h1u && l0u == l1u);
simplify-rtx.c (simplify_relational_operation): Two signed values with equal high words are less/greater than each other if... * simplify-rtx.c (simplify_relational_operation): Two signed values with equal high words are less/greater than each other if their low words are less/greater when considered as unsigned. From-SVN: r35080
2000-07-17 10:41:05 +02:00
op0lt = (h0s < h1s || (h0s == h1s && l0u < l1u));
op1lt = (h1s < h0s || (h1s == h0s && l1u < l0u));
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
op0ltu = (h0u < h1u || (h0u == h1u && l0u < l1u));
op1ltu = (h1u < h0u || (h1u == h0u && l1u < l0u));
}
/* Otherwise, there are some code-specific tests we can make. */
else
{
switch (code)
{
case EQ:
/* References to the frame plus a constant or labels cannot
be zero, but a SYMBOL_REF can due to #pragma weak. */
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
if (((NONZERO_BASE_PLUS_P (op0) && trueop1 == const0_rtx)
|| GET_CODE (trueop0) == LABEL_REF)
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
#if FRAME_POINTER_REGNUM != ARG_POINTER_REGNUM
/* On some machines, the ap reg can be 0 sometimes. */
&& op0 != arg_pointer_rtx
#endif
)
return const0_rtx;
break;
case NE:
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
if (((NONZERO_BASE_PLUS_P (op0) && trueop1 == const0_rtx)
|| GET_CODE (trueop0) == LABEL_REF)
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
#if FRAME_POINTER_REGNUM != ARG_POINTER_REGNUM
&& op0 != arg_pointer_rtx
#endif
)
return const_true_rtx;
break;
case GEU:
/* Unsigned values are never negative. */
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
if (trueop1 == const0_rtx)
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
return const_true_rtx;
break;
case LTU:
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
if (trueop1 == const0_rtx)
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
return const0_rtx;
break;
case LEU:
/* Unsigned values are never greater than the largest
unsigned value. */
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
if (GET_CODE (trueop1) == CONST_INT
&& (unsigned HOST_WIDE_INT) INTVAL (trueop1) == GET_MODE_MASK (mode)
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
&& INTEGRAL_MODE_P (mode))
return const_true_rtx;
break;
case GTU:
combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. * simplify-rtx.c (avoid_constatn_pool_reference): New static function. (simplify_binary_operation, simplify_unary_operation, simplify_relational_operation): Use it. * combine.c (combine_simplify_rtx): Don't do associative law on divisions; allow associative law on floats. From-SVN: r44073
2001-07-17 17:11:56 +02:00
if (GET_CODE (trueop1) == CONST_INT
&& (unsigned HOST_WIDE_INT) INTVAL (trueop1) == GET_MODE_MASK (mode)
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
&& INTEGRAL_MODE_P (mode))
return const0_rtx;
break;
default:
break;
}
return 0;
}
/* If we reach here, EQUAL, OP0LT, OP0LTU, OP1LT, and OP1LTU are set
as appropriate. */
switch (code)
{
case EQ:
simplify-rtx.c (cfc_args): add "unordered" field. * simplify-rtx.c (cfc_args): add "unordered" field. (check_fold_consts): Set unordered field. (simplify_relational_operation): Simplify the unordered comparisons. * reg-stack.c (swap_rtx_condition): Ensure that the transformation is valid. * emit-rtl.c (try_split): Fix code to mark labels. * jump.c (mark_jump_label): Make global. * rtl.h (mark_jump_label): Declare. * predict.c (estimate_probability): Handle unordred comparisons. From-SVN: r38711
2001-01-05 16:34:39 +01:00
case UNEQ:
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
return equal ? const_true_rtx : const0_rtx;
case NE:
simplify-rtx.c (cfc_args): add "unordered" field. * simplify-rtx.c (cfc_args): add "unordered" field. (check_fold_consts): Set unordered field. (simplify_relational_operation): Simplify the unordered comparisons. * reg-stack.c (swap_rtx_condition): Ensure that the transformation is valid. * emit-rtl.c (try_split): Fix code to mark labels. * jump.c (mark_jump_label): Make global. * rtl.h (mark_jump_label): Declare. * predict.c (estimate_probability): Handle unordred comparisons. From-SVN: r38711
2001-01-05 16:34:39 +01:00
case LTGT:
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
return ! equal ? const_true_rtx : const0_rtx;
case LT:
simplify-rtx.c (cfc_args): add "unordered" field. * simplify-rtx.c (cfc_args): add "unordered" field. (check_fold_consts): Set unordered field. (simplify_relational_operation): Simplify the unordered comparisons. * reg-stack.c (swap_rtx_condition): Ensure that the transformation is valid. * emit-rtl.c (try_split): Fix code to mark labels. * jump.c (mark_jump_label): Make global. * rtl.h (mark_jump_label): Declare. * predict.c (estimate_probability): Handle unordred comparisons. From-SVN: r38711
2001-01-05 16:34:39 +01:00
case UNLT:
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
return op0lt ? const_true_rtx : const0_rtx;
case GT:
simplify-rtx.c (cfc_args): add "unordered" field. * simplify-rtx.c (cfc_args): add "unordered" field. (check_fold_consts): Set unordered field. (simplify_relational_operation): Simplify the unordered comparisons. * reg-stack.c (swap_rtx_condition): Ensure that the transformation is valid. * emit-rtl.c (try_split): Fix code to mark labels. * jump.c (mark_jump_label): Make global. * rtl.h (mark_jump_label): Declare. * predict.c (estimate_probability): Handle unordred comparisons. From-SVN: r38711
2001-01-05 16:34:39 +01:00
case UNGT:
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
return op1lt ? const_true_rtx : const0_rtx;
case LTU:
return op0ltu ? const_true_rtx : const0_rtx;
case GTU:
return op1ltu ? const_true_rtx : const0_rtx;
case LE:
simplify-rtx.c (simplify_relational_operation): Always simplify ORDERED and UNORDERED when FLAG_FAST_MATH. * simplify-rtx.c (simplify_relational_operation): Always simplify ORDERED and UNORDERED when FLAG_FAST_MATH. Handle properly UNLE and UNGE. From-SVN: r38775
2001-01-07 14:40:09 +01:00
case UNLE:
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
return equal || op0lt ? const_true_rtx : const0_rtx;
case GE:
simplify-rtx.c (simplify_relational_operation): Always simplify ORDERED and UNORDERED when FLAG_FAST_MATH. * simplify-rtx.c (simplify_relational_operation): Always simplify ORDERED and UNORDERED when FLAG_FAST_MATH. Handle properly UNLE and UNGE. From-SVN: r38775
2001-01-07 14:40:09 +01:00
case UNGE:
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
return equal || op1lt ? const_true_rtx : const0_rtx;
case LEU:
return equal || op0ltu ? const_true_rtx : const0_rtx;
case GEU:
return equal || op1ltu ? const_true_rtx : const0_rtx;
simplify-rtx.c (cfc_args): add "unordered" field. * simplify-rtx.c (cfc_args): add "unordered" field. (check_fold_consts): Set unordered field. (simplify_relational_operation): Simplify the unordered comparisons. * reg-stack.c (swap_rtx_condition): Ensure that the transformation is valid. * emit-rtl.c (try_split): Fix code to mark labels. * jump.c (mark_jump_label): Make global. * rtl.h (mark_jump_label): Declare. * predict.c (estimate_probability): Handle unordred comparisons. From-SVN: r38711
2001-01-05 16:34:39 +01:00
case ORDERED:
return const_true_rtx;
case UNORDERED:
return const0_rtx;
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
default:
abort ();
}
}
/* Simplify CODE, an operation with result mode MODE and three operands,
OP0, OP1, and OP2. OP0_MODE was the mode of OP0 before it became
a constant. Return 0 if no simplifications is possible. */
rtx
simplify_ternary_operation (code, mode, op0_mode, op0, op1, op2)
enum rtx_code code;
enum machine_mode mode, op0_mode;
rtx op0, op1, op2;
{
c-decl.c (mark_binding_level): Use 'for' instead of `while'. * c-decl.c (mark_binding_level): Use 'for' instead of `while'. * conflict.c: Minor cleanups. * optabs.c: Add blank line * simplify-rtx.c: From-SVN: r33226
2000-04-18 20:14:10 +02:00
unsigned int width = GET_MODE_BITSIZE (mode);
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
/* VOIDmode means "infinite" precision. */
if (width == 0)
width = HOST_BITS_PER_WIDE_INT;
switch (code)
{
case SIGN_EXTRACT:
case ZERO_EXTRACT:
if (GET_CODE (op0) == CONST_INT
&& GET_CODE (op1) == CONST_INT
&& GET_CODE (op2) == CONST_INT
simplify-rtx.c (simplify_binary_operation): Recognize (compare (gt[u] (cc) 0) (lt[u] (cc) 0)). * simplify-rtx.c (simplify_binary_operation): Recognize (compare (gt[u] (cc) 0) (lt[u] (cc) 0)). (simplify_ternary_operation): Do not examine MODE_BITSIZE of a CONST_INT, it will always be zero. From-SVN: r35098
2000-07-17 20:31:50 +02:00
&& ((unsigned) INTVAL (op1) + (unsigned) INTVAL (op2) <= width)
simplify-rtx.c (simplify_ternary_operation): Cast to unsigned. * simplify-rtx.c (simplify_ternary_operation): Cast to unsigned. * stor-layout.c (place_field): Likewise. * integrate.h (struct inline_remap): Make regno_pointer_align unsigned. * expr.c (store_expr): Make align unsigned. * explow.c (plus_constant_wide): Make low words unsigned. * expmed.c (choose_multiplier): Likewise. * fold-const.c (fold): Likewise. * tree.h (build_int_2): Likewise. * tree.c (build_int_2_wide, tree_int_cst_msb): Likewise. * emit-rtl.c (gen_reg_rtx): Add cast to unsigned char*. (init_emit): Change cast to unsigned char*. * varasm.c (compare_constant_1): Add cast to char*. * gcse.c (delete_null_pointer_checks): Change cast to unsigned int*. * reload1.c (reload): Likewise. * rtl.h (MEM_SET_IN_STRUCT_P): Use do { } while (0). From-SVN: r33684
2000-05-04 23:15:05 +02:00
&& width <= (unsigned) HOST_BITS_PER_WIDE_INT)
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
{
/* Extracting a bit-field from a constant */
HOST_WIDE_INT val = INTVAL (op0);
if (BITS_BIG_ENDIAN)
val >>= (GET_MODE_BITSIZE (op0_mode)
- INTVAL (op2) - INTVAL (op1));
else
val >>= INTVAL (op2);
if (HOST_BITS_PER_WIDE_INT != INTVAL (op1))
{
/* First zero-extend. */
val &= ((HOST_WIDE_INT) 1 << INTVAL (op1)) - 1;
/* If desired, propagate sign bit. */
if (code == SIGN_EXTRACT
&& (val & ((HOST_WIDE_INT) 1 << (INTVAL (op1) - 1))))
val |= ~ (((HOST_WIDE_INT) 1 << INTVAL (op1)) - 1);
}
/* Clear the bits that don't belong in our mode,
unless they and our sign bit are all one.
So we get either a reasonable negative value or a reasonable
unsigned value for this mode. */
if (width < HOST_BITS_PER_WIDE_INT
&& ((val & ((HOST_WIDE_INT) (-1) << (width - 1)))
!= ((HOST_WIDE_INT) (-1) << (width - 1))))
val &= ((HOST_WIDE_INT) 1 << width) - 1;
return GEN_INT (val);
}
break;
case IF_THEN_ELSE:
if (GET_CODE (op0) == CONST_INT)
return op0 != const0_rtx ? op1 : op2;
/* Convert a == b ? b : a to "a". */
if (GET_CODE (op0) == NE && ! side_effects_p (op0)
Brad's -ffast-math breakup. From-SVN: r40300
2001-03-07 20:29:41 +01:00
&& (! FLOAT_MODE_P (mode) || flag_unsafe_math_optimizations)
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
&& rtx_equal_p (XEXP (op0, 0), op1)
&& rtx_equal_p (XEXP (op0, 1), op2))
return op1;
else if (GET_CODE (op0) == EQ && ! side_effects_p (op0)
Brad's -ffast-math breakup. From-SVN: r40300
2001-03-07 20:29:41 +01:00
&& (! FLOAT_MODE_P (mode) || flag_unsafe_math_optimizations)
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
&& rtx_equal_p (XEXP (op0, 1), op1)
&& rtx_equal_p (XEXP (op0, 0), op2))
return op2;
else if (GET_RTX_CLASS (GET_CODE (op0)) == '<' && ! side_effects_p (op0))
{
simplify-rtx.c (simplify_relational_operation): Verify that mode == VOIDmode implies both operands to be VOIDmode. * simplify-rtx.c (simplify_relational_operation): Verify that mode == VOIDmode implies both operands to be VOIDmode. (simplify_ternary_operation): Compute properly the mode of comparison. * combine.c (combine_simplify_rtx): Likewise. From-SVN: r35343
2000-07-30 20:13:10 +02:00
enum machine_mode cmp_mode = (GET_MODE (XEXP (op0, 0)) == VOIDmode
? GET_MODE (XEXP (op0, 1))
: GET_MODE (XEXP (op0, 0)));
Fix obvious bug in previous commit From-SVN: r39248
2001-01-24 22:43:11 +01:00
rtx temp;
combine.c (combine_simplify_rtx): If the modes are all VOIDmode, check the original operand's mode also. * combine.c (combine_simplify_rtx): If the modes are all VOIDmode, check the original operand's mode also. * simplify-rtx.c (simplify_ternary_operation): Ditto. From-SVN: r39247
2001-01-24 22:10:06 +01:00
if (cmp_mode == VOIDmode)
cmp_mode = op0_mode;
Fix obvious bug in previous commit From-SVN: r39248
2001-01-24 22:43:11 +01:00
temp = simplify_relational_operation (GET_CODE (op0), cmp_mode,
XEXP (op0, 0), XEXP (op0, 1));
c-decl.c (mark_binding_level): Use 'for' instead of `while'. * c-decl.c (mark_binding_level): Use 'for' instead of `while'. * conflict.c: Minor cleanups. * optabs.c: Add blank line * simplify-rtx.c: From-SVN: r33226
2000-04-18 20:14:10 +02:00
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
/* See if any simplifications were possible. */
if (temp == const0_rtx)
return op2;
else if (temp == const1_rtx)
return op1;
simplify-rtx.c (simplify_ternary_operation): Try to simplify IF_THEN_ELSE to a setcc form. * simplify-rtx.c (simplify_ternary_operation): Try to simplify IF_THEN_ELSE to a setcc form. From-SVN: r34076
2000-05-22 10:20:47 +02:00
else if (temp)
op0 = temp;
/* Look for happy constants in op1 and op2. */
if (GET_CODE (op1) == CONST_INT && GET_CODE (op2) == CONST_INT)
{
HOST_WIDE_INT t = INTVAL (op1);
HOST_WIDE_INT f = INTVAL (op2);
if (t == STORE_FLAG_VALUE && f == 0)
code = GET_CODE (op0);
jump.c (jump_optimize_1): Use reversed_comparison_code instead of can_reverse_comparison_p. * jump.c (jump_optimize_1): Use reversed_comparison_code instead of can_reverse_comparison_p. (jump_back_p): Likewise. (invert_exp_1): Likewise. (thread_jumps): Likewise. * simplify-rtx.c (simplify_unary_operation): Likewise. (simplify_ternary_operation): Likewise. * cse.c (find_comparison_args): Convert to use can_reverse_comparison_p. (record_jump_equiv): Likewise. From-SVN: r38802
2001-01-08 16:16:40 +01:00
else if (t == 0 && f == STORE_FLAG_VALUE)
{
enum rtx_code tmp;
tmp = reversed_comparison_code (op0, NULL_RTX);
if (tmp == UNKNOWN)
break;
code = tmp;
}
simplify-rtx.c (simplify_ternary_operation): Try to simplify IF_THEN_ELSE to a setcc form. * simplify-rtx.c (simplify_ternary_operation): Try to simplify IF_THEN_ELSE to a setcc form. From-SVN: r34076
2000-05-22 10:20:47 +02:00
else
break;
return gen_rtx_fmt_ee (code, mode, XEXP (op0, 0), XEXP (op0, 1));
}
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
}
break;
default:
abort ();
}
return 0;
}
simplify-rtx.c (simplify_subreg): Break out from ... * simplify-rtx.c (simplify_subreg): Break out from ... * combine.c (combine_splify_rtx) ... here and ... * recog.c (validate_replace_rtx_1): ... here; * rtl.h (subreg_lowpart_parts_p, simplify_subreg): Declare. * emit-rtl.c (subreg_lowpart_parts_p): Break out from ... (subreg_lowpart_p): ... here. From-SVN: r42199
2001-05-17 17:00:35 +02:00
/* Simplify SUBREG:OUTERMODE(OP:INNERMODE, BYTE)
Return 0 if no simplifications is possible. */
rtx
simplify_subreg (outermode, op, innermode, byte)
rtx op;
unsigned int byte;
enum machine_mode outermode, innermode;
{
/* Little bit of sanity checking. */
if (innermode == VOIDmode || outermode == VOIDmode
|| innermode == BLKmode || outermode == BLKmode)
abort ();
if (GET_MODE (op) != innermode
&& GET_MODE (op) != VOIDmode)
abort ();
if (byte % GET_MODE_SIZE (outermode)
|| byte >= GET_MODE_SIZE (innermode))
abort ();
integrate.c (copy_rtx_and_substitute): Use simplify_gen_subreg. * integrate.c (copy_rtx_and_substitute): Use simplify_gen_subreg. (simplify_subreg): Handle complex types represented as CONCAT. * recog.c (validate_replace_rtx_1): Properly canonicalize expression * rtl.h (swap_commutative_operands_p): Declare. * rtlanal.c (swap_commutative_operands_p): New. (operand_preference): New static function. * combine.c (combine_simplify_rtx): Use swap_commutative_operands_p. (gen_binary): Likewise. * optabs.c (emit_cmp_and_jump_insns, emit_conditional_move): Likewise. * simplify-rtx.c (simplify_gen_binary, simplify_gen_relational): Likewise. From-SVN: r42224
2001-05-17 23:21:21 +02:00
if (outermode == innermode && !byte)
return op;
simplify-rtx.c (simplify_subreg): Break out from ... * simplify-rtx.c (simplify_subreg): Break out from ... * combine.c (combine_splify_rtx) ... here and ... * recog.c (validate_replace_rtx_1): ... here; * rtl.h (subreg_lowpart_parts_p, simplify_subreg): Declare. * emit-rtl.c (subreg_lowpart_parts_p): Break out from ... (subreg_lowpart_p): ... here. From-SVN: r42199
2001-05-17 17:00:35 +02:00
/* Attempt to simplify constant to non-SUBREG expression. */
if (CONSTANT_P (op))
{
int offset, part;
regmove.c (replace_in_call_usage): Fix warnings. 2001-07-10 Jan van Male <jan.vanmale@fenk.wau.nl> * regmove.c (replace_in_call_usage): Fix warnings. * sched-deps.c (add_dependence): Fix warnings. * simplify-rtx.c (simplify_subreg): Likewise. Return NULL_RTX instead of NULL. * reg-stack.c (emit_swap_insn): Eliminate warnings. (subst_asm_stack_regs): Likewise. * combine.c (num_sign_bit_copies): Cast bitwidth to int to avoid warnings. * dwarf2out.c (output_call_frame_info): Declare i as int. (build_abbrev_table): Declare n_alloc as int. (dwarf2out_finish): Initialize die. * except.c: Declare sjlj_funcdef_number as unsigned. (connect_post_landing_pads): Declare j as unsigned. (convert_to_eh_region_ranges): Initialize call_site. (output_function_exception_table): Initialize tt_format_size. * expr.c (move_by_pieces_1): Initialize to1. (store_constructor): Initialize minelt and maxelt. * flow.c (mark_regs_live_at_end): Declare i as unsigned. * function.c (instantiate_decls): Avoid signed/unsigned warning. * c-decl.c (combine_parm_decls): Unused, remove. * c-tree.h: Remove prototype for combine_parm_decls. * reload.c (push_reload): Fix warning. (regno_clobbered_p): Likewise. * reload1.c (replace_pseudos_in_call_usage): Likewise. (reload_combine): Likewise. * bitmap.c: Rename bitmap_zero to bitmap_zero_bits to fix warnings. * bitmap.h: Rename bitmap_zero to bitmap_zero_bits to fix warnings. * bitmap.c (bitmap_operation): Change user. * bitmap.h (EXECUTE_IF_AND_COMPL_IN_BITMAP): Likewise. For cp/: 2001-07-10 Jan van Male <jan.vanmale@fenk.wau.nl> * call.c (build_op_delete_call): Initialize fn. (convert_like_real): Delete conditional. (joust): Initialize *w and *l. * class.c: Add prototype for binfo_ctor_vtable. (get_primary_binfo): Initialize result. * init.c (build_java_class_ref): Initialize name. * typeck.c (unary_complex_lvalue): Do not duplicate the argument to modify, pre-, or post-increment when used as an lvalue and when the argument has side-effects. For ch/: 2001-07-10 Jan van Male <jan.vanmale@fenk.wau.nl> * ch-tree.h: Remove prototype for combine_parm_decls, unused function. From-SVN: r43893
2001-07-10 12:38:10 +02:00
unsigned HOST_WIDE_INT val = 0;
simplify-rtx.c (simplify_subreg): Break out from ... * simplify-rtx.c (simplify_subreg): Break out from ... * combine.c (combine_splify_rtx) ... here and ... * recog.c (validate_replace_rtx_1): ... here; * rtl.h (subreg_lowpart_parts_p, simplify_subreg): Declare. * emit-rtl.c (subreg_lowpart_parts_p): Break out from ... (subreg_lowpart_p): ... here. From-SVN: r42199
2001-05-17 17:00:35 +02:00
simplify-rtx.c: (simplify_subreg) Fix typo in comment 2001-07-11 David Billinghurst <David.Billinghurst@riotinto.com> * simplify-rtx.c: (simplify_subreg) Fix typo in comment From-SVN: r43916
2001-07-11 02:52:01 +02:00
/* ??? This code is partly redundant with code below, but can handle
simplify-rtx.c (simplify_subreg): Break out from ... * simplify-rtx.c (simplify_subreg): Break out from ... * combine.c (combine_splify_rtx) ... here and ... * recog.c (validate_replace_rtx_1): ... here; * rtl.h (subreg_lowpart_parts_p, simplify_subreg): Declare. * emit-rtl.c (subreg_lowpart_parts_p): Break out from ... (subreg_lowpart_p): ... here. From-SVN: r42199
2001-05-17 17:00:35 +02:00
the subregs of floats and similar corner cases.
Later it we should move all simplification code here and rewrite
GEN_LOWPART_IF_POSSIBLE, GEN_HIGHPART, OPERAND_SUBWORD and friends
using SIMPLIFY_SUBREG. */
simplify_rtx.c (simplify_subreg): Keep subregs on return values... * simplify_rtx.c (simplify_subreg): Keep subregs on return values, check CLASS_CANNOT_CHANGE_MODE before avoiding subreg on hard reg, in case register wasn't OK previously, accept it now; allow subregs of frame pointer if reload completed and frame pointer is not needed. * combine.c (sombine_simplify_rtx): Fix comment; use subreg_lowpart_offset instead of subreg_lowpart_p (gen_lowpart_for_combine): Use subreg_lowpart_offset. * rtl.h (subreg_lowpart_parts_p): Kill. (subreg_lowpart_offset, subreg_highpart_offset): Declare. * simplify-rtx.c (simplify_subreg): Use subreg_lowpart_offset. * emit-rtl.c (gen_lowpart_SUBREG): Use subreg_lowpart_offset; (gen_lowpart_common): Likewise. (subreg_lowpart_p): Likewise. (subreg_lowpart_parts_p): Kill. (subreg_lowpart_offset, subreg_highpart_offset): New function. * emit-rtl.c (gen_lowpart_common): Use simplify_gen_subreg to simplify SUBREG and REG. (gen_highpart): Use simplify_gen_subreg for all simplifications. * emit-rtl.c (gen_realpart, gen_imagpart): Do not handle CONCAT specially. * rtlanal.c (replace_regs): Use simplify_gen_subreg From-SVN: r42850
2001-06-04 16:52:14 +02:00
if (subreg_lowpart_offset (outermode, innermode) == byte)
simplify-rtx.c (simplify_subreg): Break out from ... * simplify-rtx.c (simplify_subreg): Break out from ... * combine.c (combine_splify_rtx) ... here and ... * recog.c (validate_replace_rtx_1): ... here; * rtl.h (subreg_lowpart_parts_p, simplify_subreg): Declare. * emit-rtl.c (subreg_lowpart_parts_p): Break out from ... (subreg_lowpart_p): ... here. From-SVN: r42199
2001-05-17 17:00:35 +02:00
{
rtx new = gen_lowpart_if_possible (outermode, op);
if (new)
return new;
}
/* Similar comment as above apply here. */
if (GET_MODE_SIZE (outermode) == UNITS_PER_WORD
&& GET_MODE_SIZE (innermode) > UNITS_PER_WORD
&& GET_MODE_CLASS (outermode) == MODE_INT)
{
rtlanal.c (operand_preference): Fix preference for objects. * rtlanal.c (operand_preference): Fix preference for objects. * gcse.c (handle_avail_expr): Be prepared to handle single_set parallels. * combine.c (if_then_else_cond): Use simplify_subreg instead of operand_subword. * integreate.c (sub_constants): Likewise. * emit-rtl.c (constant_subword): Deprecate; remove most of code and use simplify_gen_subreg. Mon Jun 4 19:55:23 CEST 2001 Lars Brinkhoff <lars@nocrew.org> * sibcall.c (skip_copy_to_return_value): recognize the situation when the called function's return value is copied into an intermediate pseudo, and then into the calling functions return value register. From-SVN: r42864
2001-06-04 20:04:36 +02:00
rtx new = constant_subword (op,
(byte / UNITS_PER_WORD),
innermode);
simplify-rtx.c (simplify_subreg): Break out from ... * simplify-rtx.c (simplify_subreg): Break out from ... * combine.c (combine_splify_rtx) ... here and ... * recog.c (validate_replace_rtx_1): ... here; * rtl.h (subreg_lowpart_parts_p, simplify_subreg): Declare. * emit-rtl.c (subreg_lowpart_parts_p): Break out from ... (subreg_lowpart_p): ... here. From-SVN: r42199
2001-05-17 17:00:35 +02:00
if (new)
return new;
}
offset = byte * BITS_PER_UNIT;
switch (GET_CODE (op))
{
case CONST_DOUBLE:
if (GET_MODE (op) != VOIDmode)
break;
/* We can't handle this case yet. */
if (GET_MODE_BITSIZE (outermode) >= HOST_BITS_PER_WIDE_INT)
regmove.c (replace_in_call_usage): Fix warnings. 2001-07-10 Jan van Male <jan.vanmale@fenk.wau.nl> * regmove.c (replace_in_call_usage): Fix warnings. * sched-deps.c (add_dependence): Fix warnings. * simplify-rtx.c (simplify_subreg): Likewise. Return NULL_RTX instead of NULL. * reg-stack.c (emit_swap_insn): Eliminate warnings. (subst_asm_stack_regs): Likewise. * combine.c (num_sign_bit_copies): Cast bitwidth to int to avoid warnings. * dwarf2out.c (output_call_frame_info): Declare i as int. (build_abbrev_table): Declare n_alloc as int. (dwarf2out_finish): Initialize die. * except.c: Declare sjlj_funcdef_number as unsigned. (connect_post_landing_pads): Declare j as unsigned. (convert_to_eh_region_ranges): Initialize call_site. (output_function_exception_table): Initialize tt_format_size. * expr.c (move_by_pieces_1): Initialize to1. (store_constructor): Initialize minelt and maxelt. * flow.c (mark_regs_live_at_end): Declare i as unsigned. * function.c (instantiate_decls): Avoid signed/unsigned warning. * c-decl.c (combine_parm_decls): Unused, remove. * c-tree.h: Remove prototype for combine_parm_decls. * reload.c (push_reload): Fix warning. (regno_clobbered_p): Likewise. * reload1.c (replace_pseudos_in_call_usage): Likewise. (reload_combine): Likewise. * bitmap.c: Rename bitmap_zero to bitmap_zero_bits to fix warnings. * bitmap.h: Rename bitmap_zero to bitmap_zero_bits to fix warnings. * bitmap.c (bitmap_operation): Change user. * bitmap.h (EXECUTE_IF_AND_COMPL_IN_BITMAP): Likewise. For cp/: 2001-07-10 Jan van Male <jan.vanmale@fenk.wau.nl> * call.c (build_op_delete_call): Initialize fn. (convert_like_real): Delete conditional. (joust): Initialize *w and *l. * class.c: Add prototype for binfo_ctor_vtable. (get_primary_binfo): Initialize result. * init.c (build_java_class_ref): Initialize name. * typeck.c (unary_complex_lvalue): Do not duplicate the argument to modify, pre-, or post-increment when used as an lvalue and when the argument has side-effects. For ch/: 2001-07-10 Jan van Male <jan.vanmale@fenk.wau.nl> * ch-tree.h: Remove prototype for combine_parm_decls, unused function. From-SVN: r43893
2001-07-10 12:38:10 +02:00
return NULL_RTX;
simplify-rtx.c (simplify_subreg): Break out from ... * simplify-rtx.c (simplify_subreg): Break out from ... * combine.c (combine_splify_rtx) ... here and ... * recog.c (validate_replace_rtx_1): ... here; * rtl.h (subreg_lowpart_parts_p, simplify_subreg): Declare. * emit-rtl.c (subreg_lowpart_parts_p): Break out from ... (subreg_lowpart_p): ... here. From-SVN: r42199
2001-05-17 17:00:35 +02:00
part = offset >= HOST_BITS_PER_WIDE_INT;
if ((BITS_PER_WORD > HOST_BITS_PER_WIDE_INT
&& BYTES_BIG_ENDIAN)
|| (BITS_PER_WORD <= HOST_BITS_PER_WIDE_INT
&& WORDS_BIG_ENDIAN))
part = !part;
val = part ? CONST_DOUBLE_HIGH (op) : CONST_DOUBLE_LOW (op);
offset %= HOST_BITS_PER_WIDE_INT;
/* We've already picked the word we want from a double, so
pretend this is actually an integer. */
innermode = mode_for_size (HOST_BITS_PER_WIDE_INT, MODE_INT, 0);
/* FALLTHROUGH */
case CONST_INT:
if (GET_CODE (op) == CONST_INT)
val = INTVAL (op);
/* We don't handle synthetizing of non-integral constants yet. */
if (GET_MODE_CLASS (outermode) != MODE_INT)
regmove.c (replace_in_call_usage): Fix warnings. 2001-07-10 Jan van Male <jan.vanmale@fenk.wau.nl> * regmove.c (replace_in_call_usage): Fix warnings. * sched-deps.c (add_dependence): Fix warnings. * simplify-rtx.c (simplify_subreg): Likewise. Return NULL_RTX instead of NULL. * reg-stack.c (emit_swap_insn): Eliminate warnings. (subst_asm_stack_regs): Likewise. * combine.c (num_sign_bit_copies): Cast bitwidth to int to avoid warnings. * dwarf2out.c (output_call_frame_info): Declare i as int. (build_abbrev_table): Declare n_alloc as int. (dwarf2out_finish): Initialize die. * except.c: Declare sjlj_funcdef_number as unsigned. (connect_post_landing_pads): Declare j as unsigned. (convert_to_eh_region_ranges): Initialize call_site. (output_function_exception_table): Initialize tt_format_size. * expr.c (move_by_pieces_1): Initialize to1. (store_constructor): Initialize minelt and maxelt. * flow.c (mark_regs_live_at_end): Declare i as unsigned. * function.c (instantiate_decls): Avoid signed/unsigned warning. * c-decl.c (combine_parm_decls): Unused, remove. * c-tree.h: Remove prototype for combine_parm_decls. * reload.c (push_reload): Fix warning. (regno_clobbered_p): Likewise. * reload1.c (replace_pseudos_in_call_usage): Likewise. (reload_combine): Likewise. * bitmap.c: Rename bitmap_zero to bitmap_zero_bits to fix warnings. * bitmap.h: Rename bitmap_zero to bitmap_zero_bits to fix warnings. * bitmap.c (bitmap_operation): Change user. * bitmap.h (EXECUTE_IF_AND_COMPL_IN_BITMAP): Likewise. For cp/: 2001-07-10 Jan van Male <jan.vanmale@fenk.wau.nl> * call.c (build_op_delete_call): Initialize fn. (convert_like_real): Delete conditional. (joust): Initialize *w and *l. * class.c: Add prototype for binfo_ctor_vtable. (get_primary_binfo): Initialize result. * init.c (build_java_class_ref): Initialize name. * typeck.c (unary_complex_lvalue): Do not duplicate the argument to modify, pre-, or post-increment when used as an lvalue and when the argument has side-effects. For ch/: 2001-07-10 Jan van Male <jan.vanmale@fenk.wau.nl> * ch-tree.h: Remove prototype for combine_parm_decls, unused function. From-SVN: r43893
2001-07-10 12:38:10 +02:00
return NULL_RTX;
simplify-rtx.c (simplify_subreg): Break out from ... * simplify-rtx.c (simplify_subreg): Break out from ... * combine.c (combine_splify_rtx) ... here and ... * recog.c (validate_replace_rtx_1): ... here; * rtl.h (subreg_lowpart_parts_p, simplify_subreg): Declare. * emit-rtl.c (subreg_lowpart_parts_p): Break out from ... (subreg_lowpart_p): ... here. From-SVN: r42199
2001-05-17 17:00:35 +02:00
if (BYTES_BIG_ENDIAN || WORDS_BIG_ENDIAN)
{
if (WORDS_BIG_ENDIAN)
offset = (GET_MODE_BITSIZE (innermode)
- GET_MODE_BITSIZE (outermode) - offset);
if (BYTES_BIG_ENDIAN != WORDS_BIG_ENDIAN
&& GET_MODE_SIZE (outermode) < UNITS_PER_WORD)
offset = (offset + BITS_PER_WORD - GET_MODE_BITSIZE (outermode)
- 2 * (offset % BITS_PER_WORD));
}
if (offset >= HOST_BITS_PER_WIDE_INT)
return ((HOST_WIDE_INT) val < 0) ? constm1_rtx : const0_rtx;
else
{
val >>= offset;
if (GET_MODE_BITSIZE (outermode) < HOST_BITS_PER_WIDE_INT)
val = trunc_int_for_mode (val, outermode);
return GEN_INT (val);
}
default:
break;
}
}
/* Changing mode twice with SUBREG => just change it once,
or not at all if changing back op starting mode. */
if (GET_CODE (op) == SUBREG)
{
enum machine_mode innermostmode = GET_MODE (SUBREG_REG (op));
simplify-rtx.c (simplify_subreg): Fix combining of paradoxical subregs. * simplify-rtx.c (simplify_subreg): Fix combining of paradoxical subregs. From-SVN: r42868
2001-06-04 20:44:57 +02:00
int final_offset = byte + SUBREG_BYTE (op);
simplify-rtx.c (simplify_subreg): Break out from ... * simplify-rtx.c (simplify_subreg): Break out from ... * combine.c (combine_splify_rtx) ... here and ... * recog.c (validate_replace_rtx_1): ... here; * rtl.h (subreg_lowpart_parts_p, simplify_subreg): Declare. * emit-rtl.c (subreg_lowpart_parts_p): Break out from ... (subreg_lowpart_p): ... here. From-SVN: r42199
2001-05-17 17:00:35 +02:00
rtx new;
if (outermode == innermostmode
&& byte == 0 && SUBREG_BYTE (op) == 0)
return SUBREG_REG (op);
simplify-rtx.c (simplify_subreg): Fix combining of paradoxical subregs. * simplify-rtx.c (simplify_subreg): Fix combining of paradoxical subregs. From-SVN: r42868
2001-06-04 20:44:57 +02:00
/* The SUBREG_BYTE represents offset, as if the value were stored
in memory. Irritating exception is paradoxical subreg, where
we define SUBREG_BYTE to be 0. On big endian machines, this
sbitmap.c: Fix comment formatting. * sbitmap.c: Fix comment formatting. * sched-deps.c: Likewise. * sibcall.c: Likewise. * simplify-rtx.c: Likewise. * ssa.c: Likewise. * ssa-ccp.c: Likewise. * stor-layout.c: Likewise. * timevar.c: Likewise. * toplev.c: Likewise. * unwind-dw2.c: Likewise. * unwind-dw2-fde.c: Likewise. * varasm.c: Likewise. From-SVN: r44983
2001-08-17 23:23:12 +02:00
value should be negative. For a moment, undo this exception. */
simplify-rtx.c (simplify_subreg): Fix combining of paradoxical subregs. * simplify-rtx.c (simplify_subreg): Fix combining of paradoxical subregs. From-SVN: r42868
2001-06-04 20:44:57 +02:00
if (byte == 0 && GET_MODE_SIZE (innermode) < GET_MODE_SIZE (outermode))
simplify-rtx.c (simplify_subreg): Break out from ... * simplify-rtx.c (simplify_subreg): Break out from ... * combine.c (combine_splify_rtx) ... here and ... * recog.c (validate_replace_rtx_1): ... here; * rtl.h (subreg_lowpart_parts_p, simplify_subreg): Declare. * emit-rtl.c (subreg_lowpart_parts_p): Break out from ... (subreg_lowpart_p): ... here. From-SVN: r42199
2001-05-17 17:00:35 +02:00
{
simplify-rtx.c (simplify_subreg): Fix combining of paradoxical subregs. * simplify-rtx.c (simplify_subreg): Fix combining of paradoxical subregs. From-SVN: r42868
2001-06-04 20:44:57 +02:00
int difference = (GET_MODE_SIZE (innermode) - GET_MODE_SIZE (outermode));
if (WORDS_BIG_ENDIAN)
final_offset += (difference / UNITS_PER_WORD) * UNITS_PER_WORD;
if (BYTES_BIG_ENDIAN)
final_offset += difference % UNITS_PER_WORD;
}
if (SUBREG_BYTE (op) == 0
&& GET_MODE_SIZE (innermostmode) < GET_MODE_SIZE (innermode))
{
int difference = (GET_MODE_SIZE (innermostmode) - GET_MODE_SIZE (innermode));
if (WORDS_BIG_ENDIAN)
final_offset += (difference / UNITS_PER_WORD) * UNITS_PER_WORD;
if (BYTES_BIG_ENDIAN)
final_offset += difference % UNITS_PER_WORD;
}
/* See whether resulting subreg will be paradoxical. */
simplify-rtx.c (simplify_subreg): Fix verification of combined subreg. * simplify-rtx.c (simplify_subreg): Fix verification of combined subreg. From-SVN: r43008
2001-06-08 14:02:24 +02:00
if (GET_MODE_SIZE (innermostmode) > GET_MODE_SIZE (outermode))
simplify-rtx.c (simplify_subreg): Fix combining of paradoxical subregs. * simplify-rtx.c (simplify_subreg): Fix combining of paradoxical subregs. From-SVN: r42868
2001-06-04 20:44:57 +02:00
{
/* In nonparadoxical subregs we can't handle negative offsets. */
if (final_offset < 0)
return NULL_RTX;
/* Bail out in case resulting subreg would be incorrect. */
if (final_offset % GET_MODE_SIZE (outermode)
regmove.c (replace_in_call_usage): Fix warnings. 2001-07-10 Jan van Male <jan.vanmale@fenk.wau.nl> * regmove.c (replace_in_call_usage): Fix warnings. * sched-deps.c (add_dependence): Fix warnings. * simplify-rtx.c (simplify_subreg): Likewise. Return NULL_RTX instead of NULL. * reg-stack.c (emit_swap_insn): Eliminate warnings. (subst_asm_stack_regs): Likewise. * combine.c (num_sign_bit_copies): Cast bitwidth to int to avoid warnings. * dwarf2out.c (output_call_frame_info): Declare i as int. (build_abbrev_table): Declare n_alloc as int. (dwarf2out_finish): Initialize die. * except.c: Declare sjlj_funcdef_number as unsigned. (connect_post_landing_pads): Declare j as unsigned. (convert_to_eh_region_ranges): Initialize call_site. (output_function_exception_table): Initialize tt_format_size. * expr.c (move_by_pieces_1): Initialize to1. (store_constructor): Initialize minelt and maxelt. * flow.c (mark_regs_live_at_end): Declare i as unsigned. * function.c (instantiate_decls): Avoid signed/unsigned warning. * c-decl.c (combine_parm_decls): Unused, remove. * c-tree.h: Remove prototype for combine_parm_decls. * reload.c (push_reload): Fix warning. (regno_clobbered_p): Likewise. * reload1.c (replace_pseudos_in_call_usage): Likewise. (reload_combine): Likewise. * bitmap.c: Rename bitmap_zero to bitmap_zero_bits to fix warnings. * bitmap.h: Rename bitmap_zero to bitmap_zero_bits to fix warnings. * bitmap.c (bitmap_operation): Change user. * bitmap.h (EXECUTE_IF_AND_COMPL_IN_BITMAP): Likewise. For cp/: 2001-07-10 Jan van Male <jan.vanmale@fenk.wau.nl> * call.c (build_op_delete_call): Initialize fn. (convert_like_real): Delete conditional. (joust): Initialize *w and *l. * class.c: Add prototype for binfo_ctor_vtable. (get_primary_binfo): Initialize result. * init.c (build_java_class_ref): Initialize name. * typeck.c (unary_complex_lvalue): Do not duplicate the argument to modify, pre-, or post-increment when used as an lvalue and when the argument has side-effects. For ch/: 2001-07-10 Jan van Male <jan.vanmale@fenk.wau.nl> * ch-tree.h: Remove prototype for combine_parm_decls, unused function. From-SVN: r43893
2001-07-10 12:38:10 +02:00
|| (unsigned) final_offset >= GET_MODE_SIZE (innermostmode))
return NULL_RTX;
simplify-rtx.c (simplify_subreg): Fix combining of paradoxical subregs. * simplify-rtx.c (simplify_subreg): Fix combining of paradoxical subregs. From-SVN: r42868
2001-06-04 20:44:57 +02:00
}
else
{
int offset = 0;
int difference = (GET_MODE_SIZE (innermostmode) - GET_MODE_SIZE (outermode));
/* In paradoxical subreg, see if we are still looking on lower part.
If so, our SUBREG_BYTE will be 0. */
if (WORDS_BIG_ENDIAN)
offset += (difference / UNITS_PER_WORD) * UNITS_PER_WORD;
if (BYTES_BIG_ENDIAN)
offset += difference % UNITS_PER_WORD;
if (offset == final_offset)
final_offset = 0;
simplify-rtx.c (simplify_subreg): Break out from ... * simplify-rtx.c (simplify_subreg): Break out from ... * combine.c (combine_splify_rtx) ... here and ... * recog.c (validate_replace_rtx_1): ... here; * rtl.h (subreg_lowpart_parts_p, simplify_subreg): Declare. * emit-rtl.c (subreg_lowpart_parts_p): Break out from ... (subreg_lowpart_p): ... here. From-SVN: r42199
2001-05-17 17:00:35 +02:00
else
regmove.c (replace_in_call_usage): Fix warnings. 2001-07-10 Jan van Male <jan.vanmale@fenk.wau.nl> * regmove.c (replace_in_call_usage): Fix warnings. * sched-deps.c (add_dependence): Fix warnings. * simplify-rtx.c (simplify_subreg): Likewise. Return NULL_RTX instead of NULL. * reg-stack.c (emit_swap_insn): Eliminate warnings. (subst_asm_stack_regs): Likewise. * combine.c (num_sign_bit_copies): Cast bitwidth to int to avoid warnings. * dwarf2out.c (output_call_frame_info): Declare i as int. (build_abbrev_table): Declare n_alloc as int. (dwarf2out_finish): Initialize die. * except.c: Declare sjlj_funcdef_number as unsigned. (connect_post_landing_pads): Declare j as unsigned. (convert_to_eh_region_ranges): Initialize call_site. (output_function_exception_table): Initialize tt_format_size. * expr.c (move_by_pieces_1): Initialize to1. (store_constructor): Initialize minelt and maxelt. * flow.c (mark_regs_live_at_end): Declare i as unsigned. * function.c (instantiate_decls): Avoid signed/unsigned warning. * c-decl.c (combine_parm_decls): Unused, remove. * c-tree.h: Remove prototype for combine_parm_decls. * reload.c (push_reload): Fix warning. (regno_clobbered_p): Likewise. * reload1.c (replace_pseudos_in_call_usage): Likewise. (reload_combine): Likewise. * bitmap.c: Rename bitmap_zero to bitmap_zero_bits to fix warnings. * bitmap.h: Rename bitmap_zero to bitmap_zero_bits to fix warnings. * bitmap.c (bitmap_operation): Change user. * bitmap.h (EXECUTE_IF_AND_COMPL_IN_BITMAP): Likewise. For cp/: 2001-07-10 Jan van Male <jan.vanmale@fenk.wau.nl> * call.c (build_op_delete_call): Initialize fn. (convert_like_real): Delete conditional. (joust): Initialize *w and *l. * class.c: Add prototype for binfo_ctor_vtable. (get_primary_binfo): Initialize result. * init.c (build_java_class_ref): Initialize name. * typeck.c (unary_complex_lvalue): Do not duplicate the argument to modify, pre-, or post-increment when used as an lvalue and when the argument has side-effects. For ch/: 2001-07-10 Jan van Male <jan.vanmale@fenk.wau.nl> * ch-tree.h: Remove prototype for combine_parm_decls, unused function. From-SVN: r43893
2001-07-10 12:38:10 +02:00
return NULL_RTX;
simplify-rtx.c (simplify_subreg): Break out from ... * simplify-rtx.c (simplify_subreg): Break out from ... * combine.c (combine_splify_rtx) ... here and ... * recog.c (validate_replace_rtx_1): ... here; * rtl.h (subreg_lowpart_parts_p, simplify_subreg): Declare. * emit-rtl.c (subreg_lowpart_parts_p): Break out from ... (subreg_lowpart_p): ... here. From-SVN: r42199
2001-05-17 17:00:35 +02:00
}
/* Recurse for futher possible simplifications. */
* simplify_rtx.c (simplify_subreg): Fix simplification of nested subregs. From-SVN: r42202
2001-05-17 18:18:26 +02:00
new = simplify_subreg (outermode, SUBREG_REG (op),
GET_MODE (SUBREG_REG (op)),
simplify-rtx.c (simplify_subreg): Break out from ... * simplify-rtx.c (simplify_subreg): Break out from ... * combine.c (combine_splify_rtx) ... here and ... * recog.c (validate_replace_rtx_1): ... here; * rtl.h (subreg_lowpart_parts_p, simplify_subreg): Declare. * emit-rtl.c (subreg_lowpart_parts_p): Break out from ... (subreg_lowpart_p): ... here. From-SVN: r42199
2001-05-17 17:00:35 +02:00
final_offset);
if (new)
return new;
* simplify_rtx.c (simplify_subreg): Fix simplification of nested subregs. From-SVN: r42202
2001-05-17 18:18:26 +02:00
return gen_rtx_SUBREG (outermode, SUBREG_REG (op), final_offset);
simplify-rtx.c (simplify_subreg): Break out from ... * simplify-rtx.c (simplify_subreg): Break out from ... * combine.c (combine_splify_rtx) ... here and ... * recog.c (validate_replace_rtx_1): ... here; * rtl.h (subreg_lowpart_parts_p, simplify_subreg): Declare. * emit-rtl.c (subreg_lowpart_parts_p): Break out from ... (subreg_lowpart_p): ... here. From-SVN: r42199
2001-05-17 17:00:35 +02:00
}
/* SUBREG of a hard register => just change the register number
and/or mode. If the hard register is not valid in that mode,
suppress this simplification. If the hard register is the stack,
frame, or argument pointer, leave this as a SUBREG. */
simplify-rtx.c (simplify_subreg): Fix CONCAT simplification; fix hard register simplification. * simplify-rtx.c (simplify_subreg): Fix CONCAT simplification; fix hard register simplification. From-SVN: r42529
2001-05-24 19:48:42 +02:00
if (REG_P (op)
simplify_rtx.c (simplify_subreg): Keep subregs on return values... * simplify_rtx.c (simplify_subreg): Keep subregs on return values, check CLASS_CANNOT_CHANGE_MODE before avoiding subreg on hard reg, in case register wasn't OK previously, accept it now; allow subregs of frame pointer if reload completed and frame pointer is not needed. * combine.c (sombine_simplify_rtx): Fix comment; use subreg_lowpart_offset instead of subreg_lowpart_p (gen_lowpart_for_combine): Use subreg_lowpart_offset. * rtl.h (subreg_lowpart_parts_p): Kill. (subreg_lowpart_offset, subreg_highpart_offset): Declare. * simplify-rtx.c (simplify_subreg): Use subreg_lowpart_offset. * emit-rtl.c (gen_lowpart_SUBREG): Use subreg_lowpart_offset; (gen_lowpart_common): Likewise. (subreg_lowpart_p): Likewise. (subreg_lowpart_parts_p): Kill. (subreg_lowpart_offset, subreg_highpart_offset): New function. * emit-rtl.c (gen_lowpart_common): Use simplify_gen_subreg to simplify SUBREG and REG. (gen_highpart): Use simplify_gen_subreg for all simplifications. * emit-rtl.c (gen_realpart, gen_imagpart): Do not handle CONCAT specially. * rtlanal.c (replace_regs): Use simplify_gen_subreg From-SVN: r42850
2001-06-04 16:52:14 +02:00
&& (! REG_FUNCTION_VALUE_P (op)
|| ! rtx_equal_function_value_matters)
#ifdef CLASS_CANNOT_CHANGE_MODE
&& ! (CLASS_CANNOT_CHANGE_MODE_P (outermode, innermode)
&& GET_MODE_CLASS (innermode) != MODE_COMPLEX_INT
&& GET_MODE_CLASS (innermode) != MODE_COMPLEX_FLOAT
&& (TEST_HARD_REG_BIT
(reg_class_contents[(int) CLASS_CANNOT_CHANGE_MODE],
REGNO (op))))
#endif
simplify-rtx.c (simplify_subreg): Break out from ... * simplify-rtx.c (simplify_subreg): Break out from ... * combine.c (combine_splify_rtx) ... here and ... * recog.c (validate_replace_rtx_1): ... here; * rtl.h (subreg_lowpart_parts_p, simplify_subreg): Declare. * emit-rtl.c (subreg_lowpart_parts_p): Break out from ... (subreg_lowpart_p): ... here. From-SVN: r42199
2001-05-17 17:00:35 +02:00
&& REGNO (op) < FIRST_PSEUDO_REGISTER
simplify_rtx.c (simplify_subreg): Keep subregs on return values... * simplify_rtx.c (simplify_subreg): Keep subregs on return values, check CLASS_CANNOT_CHANGE_MODE before avoiding subreg on hard reg, in case register wasn't OK previously, accept it now; allow subregs of frame pointer if reload completed and frame pointer is not needed. * combine.c (sombine_simplify_rtx): Fix comment; use subreg_lowpart_offset instead of subreg_lowpart_p (gen_lowpart_for_combine): Use subreg_lowpart_offset. * rtl.h (subreg_lowpart_parts_p): Kill. (subreg_lowpart_offset, subreg_highpart_offset): Declare. * simplify-rtx.c (simplify_subreg): Use subreg_lowpart_offset. * emit-rtl.c (gen_lowpart_SUBREG): Use subreg_lowpart_offset; (gen_lowpart_common): Likewise. (subreg_lowpart_p): Likewise. (subreg_lowpart_parts_p): Kill. (subreg_lowpart_offset, subreg_highpart_offset): New function. * emit-rtl.c (gen_lowpart_common): Use simplify_gen_subreg to simplify SUBREG and REG. (gen_highpart): Use simplify_gen_subreg for all simplifications. * emit-rtl.c (gen_realpart, gen_imagpart): Do not handle CONCAT specially. * rtlanal.c (replace_regs): Use simplify_gen_subreg From-SVN: r42850
2001-06-04 16:52:14 +02:00
&& ((reload_completed && !frame_pointer_needed)
|| (REGNO (op) != FRAME_POINTER_REGNUM
simplify-rtx.c (simplify_subreg): Break out from ... * simplify-rtx.c (simplify_subreg): Break out from ... * combine.c (combine_splify_rtx) ... here and ... * recog.c (validate_replace_rtx_1): ... here; * rtl.h (subreg_lowpart_parts_p, simplify_subreg): Declare. * emit-rtl.c (subreg_lowpart_parts_p): Break out from ... (subreg_lowpart_p): ... here. From-SVN: r42199
2001-05-17 17:00:35 +02:00
#if HARD_FRAME_POINTER_REGNUM != FRAME_POINTER_REGNUM
simplify_rtx.c (simplify_subreg): Keep subregs on return values... * simplify_rtx.c (simplify_subreg): Keep subregs on return values, check CLASS_CANNOT_CHANGE_MODE before avoiding subreg on hard reg, in case register wasn't OK previously, accept it now; allow subregs of frame pointer if reload completed and frame pointer is not needed. * combine.c (sombine_simplify_rtx): Fix comment; use subreg_lowpart_offset instead of subreg_lowpart_p (gen_lowpart_for_combine): Use subreg_lowpart_offset. * rtl.h (subreg_lowpart_parts_p): Kill. (subreg_lowpart_offset, subreg_highpart_offset): Declare. * simplify-rtx.c (simplify_subreg): Use subreg_lowpart_offset. * emit-rtl.c (gen_lowpart_SUBREG): Use subreg_lowpart_offset; (gen_lowpart_common): Likewise. (subreg_lowpart_p): Likewise. (subreg_lowpart_parts_p): Kill. (subreg_lowpart_offset, subreg_highpart_offset): New function. * emit-rtl.c (gen_lowpart_common): Use simplify_gen_subreg to simplify SUBREG and REG. (gen_highpart): Use simplify_gen_subreg for all simplifications. * emit-rtl.c (gen_realpart, gen_imagpart): Do not handle CONCAT specially. * rtlanal.c (replace_regs): Use simplify_gen_subreg From-SVN: r42850
2001-06-04 16:52:14 +02:00
&& REGNO (op) != HARD_FRAME_POINTER_REGNUM
simplify-rtx.c (simplify_subreg): Break out from ... * simplify-rtx.c (simplify_subreg): Break out from ... * combine.c (combine_splify_rtx) ... here and ... * recog.c (validate_replace_rtx_1): ... here; * rtl.h (subreg_lowpart_parts_p, simplify_subreg): Declare. * emit-rtl.c (subreg_lowpart_parts_p): Break out from ... (subreg_lowpart_p): ... here. From-SVN: r42199
2001-05-17 17:00:35 +02:00
#endif
simplify_rtx.c (simplify_subreg): Keep subregs on return values... * simplify_rtx.c (simplify_subreg): Keep subregs on return values, check CLASS_CANNOT_CHANGE_MODE before avoiding subreg on hard reg, in case register wasn't OK previously, accept it now; allow subregs of frame pointer if reload completed and frame pointer is not needed. * combine.c (sombine_simplify_rtx): Fix comment; use subreg_lowpart_offset instead of subreg_lowpart_p (gen_lowpart_for_combine): Use subreg_lowpart_offset. * rtl.h (subreg_lowpart_parts_p): Kill. (subreg_lowpart_offset, subreg_highpart_offset): Declare. * simplify-rtx.c (simplify_subreg): Use subreg_lowpart_offset. * emit-rtl.c (gen_lowpart_SUBREG): Use subreg_lowpart_offset; (gen_lowpart_common): Likewise. (subreg_lowpart_p): Likewise. (subreg_lowpart_parts_p): Kill. (subreg_lowpart_offset, subreg_highpart_offset): New function. * emit-rtl.c (gen_lowpart_common): Use simplify_gen_subreg to simplify SUBREG and REG. (gen_highpart): Use simplify_gen_subreg for all simplifications. * emit-rtl.c (gen_realpart, gen_imagpart): Do not handle CONCAT specially. * rtlanal.c (replace_regs): Use simplify_gen_subreg From-SVN: r42850
2001-06-04 16:52:14 +02:00
))
simplify-rtx.c (simplify_subreg): Break out from ... * simplify-rtx.c (simplify_subreg): Break out from ... * combine.c (combine_splify_rtx) ... here and ... * recog.c (validate_replace_rtx_1): ... here; * rtl.h (subreg_lowpart_parts_p, simplify_subreg): Declare. * emit-rtl.c (subreg_lowpart_parts_p): Break out from ... (subreg_lowpart_p): ... here. From-SVN: r42199
2001-05-17 17:00:35 +02:00
#if FRAME_POINTER_REGNUM != ARG_POINTER_REGNUM
&& REGNO (op) != ARG_POINTER_REGNUM
#endif
&& REGNO (op) != STACK_POINTER_REGNUM)
{
int final_regno = subreg_hard_regno (gen_rtx_SUBREG (outermode, op, byte),
0);
simplify_rtx.c (simplify_subreg): Keep subregs on return values... * simplify_rtx.c (simplify_subreg): Keep subregs on return values, check CLASS_CANNOT_CHANGE_MODE before avoiding subreg on hard reg, in case register wasn't OK previously, accept it now; allow subregs of frame pointer if reload completed and frame pointer is not needed. * combine.c (sombine_simplify_rtx): Fix comment; use subreg_lowpart_offset instead of subreg_lowpart_p (gen_lowpart_for_combine): Use subreg_lowpart_offset. * rtl.h (subreg_lowpart_parts_p): Kill. (subreg_lowpart_offset, subreg_highpart_offset): Declare. * simplify-rtx.c (simplify_subreg): Use subreg_lowpart_offset. * emit-rtl.c (gen_lowpart_SUBREG): Use subreg_lowpart_offset; (gen_lowpart_common): Likewise. (subreg_lowpart_p): Likewise. (subreg_lowpart_parts_p): Kill. (subreg_lowpart_offset, subreg_highpart_offset): New function. * emit-rtl.c (gen_lowpart_common): Use simplify_gen_subreg to simplify SUBREG and REG. (gen_highpart): Use simplify_gen_subreg for all simplifications. * emit-rtl.c (gen_realpart, gen_imagpart): Do not handle CONCAT specially. * rtlanal.c (replace_regs): Use simplify_gen_subreg From-SVN: r42850
2001-06-04 16:52:14 +02:00
/* ??? We do allow it if the current REG is not valid for
its mode. This is a kludge to work around how float/complex
arguments are passed on 32-bit Sparc and should be fixed. */
if (HARD_REGNO_MODE_OK (final_regno, outermode)
|| ! HARD_REGNO_MODE_OK (REGNO (op), innermode))
simplify-rtx.c (simplify_subreg): Break out from ... * simplify-rtx.c (simplify_subreg): Break out from ... * combine.c (combine_splify_rtx) ... here and ... * recog.c (validate_replace_rtx_1): ... here; * rtl.h (subreg_lowpart_parts_p, simplify_subreg): Declare. * emit-rtl.c (subreg_lowpart_parts_p): Break out from ... (subreg_lowpart_p): ... here. From-SVN: r42199
2001-05-17 17:00:35 +02:00
return gen_rtx_REG (outermode, final_regno);
}
/* If we have a SUBREG of a register that we are replacing and we are
replacing it with a MEM, make a new MEM and try replacing the
SUBREG with it. Don't do this if the MEM has a mode-dependent address
or if we would be widening it. */
if (GET_CODE (op) == MEM
&& ! mode_dependent_address_p (XEXP (op, 0))
simplify-rtx.c (simplify_subreg): Allow volatile memory to be subregged in case we don't have move instruction. * simplify-rtx.c (simplify_subreg): Allow volatile memory to be subregged in case we don't have move instruction. From-SVN: r43261
2001-06-12 17:25:16 +02:00
/* Allow splitting of volatile memory references in case we don't
have instruction to move the whole thing. */
&& (! MEM_VOLATILE_P (op)
optabs.h (OTI_flodiv, [...]): Kill. * optabs.h (OTI_flodiv, flodiv_optab): Kill. * genopinit.c: Put floating point divide insns in sdiv_optab. * expr.c (expand_expr): Use sdiv_optab, not flodiv_optab. * config/gofast.h, config/c4x/c4x.h, config/ia64/hpux_longdouble.h, config/mips/mips.h, config/pa/long_double.h, config/rs6000/sysv4.h, config/sparc/sparc.h: Put floating point divide libcalls in sdiv_optab. * optabs.c (init_optab): Break into new_optab, init_optab, init_optabv. (init_optabs): Use init_optabv for overflow-trapping optabs. Don't init flodiv_optab. Give mov_optab, movstrict_optab, and cmp_optab RTX codes so have_insn_for can find them. * optabs.c (expand_simple_binop, expand_simple_unop, have_insn_for, gen_sub3_insn): New interfaces. * expr.h: Prototype new functions. (enum optab_methods): Move here from optabs.h. * builtins.c, combine.c, doloop.c, function.c, ifcvt.c, loop.c, profile.c, simplify-rtx.c, stmt.c, unroll.c: Use new functions instead of working directly with optabs. * doloop.c, ifcvt.c, loop.c, profile.c, simplify-rtx.c, unroll.c: Don't include optabs.h. * caller-save.c, combine.c, function.c, stmt.c: Just include insn-codes.h, not optabs.h. * Makefile.in: Update dependencies. * combine.c (make_compound_operation, simplify_comparison): Fix typos testing for this or that instruction. From-SVN: r45008
2001-08-18 21:59:46 +02:00
|| ! have_insn_for (SET, innermode))
simplify-rtx.c (simplify_subreg): Break out from ... * simplify-rtx.c (simplify_subreg): Break out from ... * combine.c (combine_splify_rtx) ... here and ... * recog.c (validate_replace_rtx_1): ... here; * rtl.h (subreg_lowpart_parts_p, simplify_subreg): Declare. * emit-rtl.c (subreg_lowpart_parts_p): Break out from ... (subreg_lowpart_p): ... here. From-SVN: r42199
2001-05-17 17:00:35 +02:00
&& GET_MODE_SIZE (outermode) <= GET_MODE_SIZE (GET_MODE (op)))
[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
return adjust_address_nv (op, outermode, byte);
integrate.c (copy_rtx_and_substitute): Use simplify_gen_subreg. * integrate.c (copy_rtx_and_substitute): Use simplify_gen_subreg. (simplify_subreg): Handle complex types represented as CONCAT. * recog.c (validate_replace_rtx_1): Properly canonicalize expression * rtl.h (swap_commutative_operands_p): Declare. * rtlanal.c (swap_commutative_operands_p): New. (operand_preference): New static function. * combine.c (combine_simplify_rtx): Use swap_commutative_operands_p. (gen_binary): Likewise. * optabs.c (emit_cmp_and_jump_insns, emit_conditional_move): Likewise. * simplify-rtx.c (simplify_gen_binary, simplify_gen_relational): Likewise. From-SVN: r42224
2001-05-17 23:21:21 +02:00
/* Handle complex values represented as CONCAT
of real and imaginary part. */
if (GET_CODE (op) == CONCAT)
{
simplify-rtx.c (simplify_subreg): Fix offset calculation for complex values within a CONCAT. * simplify-rtx.c (simplify_subreg): Fix offset calculation for complex values within a CONCAT. From-SVN: r43177
2001-06-11 11:30:50 +02:00
int is_realpart = byte < GET_MODE_UNIT_SIZE (innermode);
integrate.c (copy_rtx_and_substitute): Use simplify_gen_subreg. * integrate.c (copy_rtx_and_substitute): Use simplify_gen_subreg. (simplify_subreg): Handle complex types represented as CONCAT. * recog.c (validate_replace_rtx_1): Properly canonicalize expression * rtl.h (swap_commutative_operands_p): Declare. * rtlanal.c (swap_commutative_operands_p): New. (operand_preference): New static function. * combine.c (combine_simplify_rtx): Use swap_commutative_operands_p. (gen_binary): Likewise. * optabs.c (emit_cmp_and_jump_insns, emit_conditional_move): Likewise. * simplify-rtx.c (simplify_gen_binary, simplify_gen_relational): Likewise. From-SVN: r42224
2001-05-17 23:21:21 +02:00
rtx part = is_realpart ? XEXP (op, 0) : XEXP (op, 1);
unsigned int final_offset;
simplify-rtx.c (simplify_subreg): When simplifying a CONCAT... * simplify-rtx.c (simplify_subreg): When simplifying a CONCAT, at least get rid of the CONCAT if we can't simplify further. From-SVN: r43659
2001-06-29 23:15:01 +02:00
rtx res;
integrate.c (copy_rtx_and_substitute): Use simplify_gen_subreg. * integrate.c (copy_rtx_and_substitute): Use simplify_gen_subreg. (simplify_subreg): Handle complex types represented as CONCAT. * recog.c (validate_replace_rtx_1): Properly canonicalize expression * rtl.h (swap_commutative_operands_p): Declare. * rtlanal.c (swap_commutative_operands_p): New. (operand_preference): New static function. * combine.c (combine_simplify_rtx): Use swap_commutative_operands_p. (gen_binary): Likewise. * optabs.c (emit_cmp_and_jump_insns, emit_conditional_move): Likewise. * simplify-rtx.c (simplify_gen_binary, simplify_gen_relational): Likewise. From-SVN: r42224
2001-05-17 23:21:21 +02:00
simplify-rtx.c (simplify_subreg): Fix offset calculation for complex values within a CONCAT. * simplify-rtx.c (simplify_subreg): Fix offset calculation for complex values within a CONCAT. From-SVN: r43177
2001-06-11 11:30:50 +02:00
final_offset = byte % (GET_MODE_UNIT_SIZE (innermode));
simplify-rtx.c (simplify_subreg): When simplifying a CONCAT... * simplify-rtx.c (simplify_subreg): When simplifying a CONCAT, at least get rid of the CONCAT if we can't simplify further. From-SVN: r43659
2001-06-29 23:15:01 +02:00
res = simplify_subreg (outermode, part, GET_MODE (part), final_offset);
if (res)
return res;
ChangeLog.2, [...]: Fix spelling errors and typos. * ChangeLog.2, ChangeLog.3, ChangeLog.4, FSFChangeLog.10, FSFChangeLog.11, c-common.c, c-common.def, c-common.h, c-decl.c, c-dump.c, c-typeck.c, except.c, sdbout.c, simplify-rtx.c, timevar.h, tree.h, varasm.c: Fix spelling errors and typos. From-SVN: r46621
2001-10-30 00:01:45 +01:00
/* We can at least simplify it by referring directly to the relevant part. */
simplify-rtx.c (simplify_subreg): When simplifying a CONCAT... * simplify-rtx.c (simplify_subreg): When simplifying a CONCAT, at least get rid of the CONCAT if we can't simplify further. From-SVN: r43659
2001-06-29 23:15:01 +02:00
return gen_rtx_SUBREG (outermode, part, final_offset);
integrate.c (copy_rtx_and_substitute): Use simplify_gen_subreg. * integrate.c (copy_rtx_and_substitute): Use simplify_gen_subreg. (simplify_subreg): Handle complex types represented as CONCAT. * recog.c (validate_replace_rtx_1): Properly canonicalize expression * rtl.h (swap_commutative_operands_p): Declare. * rtlanal.c (swap_commutative_operands_p): New. (operand_preference): New static function. * combine.c (combine_simplify_rtx): Use swap_commutative_operands_p. (gen_binary): Likewise. * optabs.c (emit_cmp_and_jump_insns, emit_conditional_move): Likewise. * simplify-rtx.c (simplify_gen_binary, simplify_gen_relational): Likewise. From-SVN: r42224
2001-05-17 23:21:21 +02:00
}
simplify-rtx.c (simplify_subreg): Break out from ... * simplify-rtx.c (simplify_subreg): Break out from ... * combine.c (combine_splify_rtx) ... here and ... * recog.c (validate_replace_rtx_1): ... here; * rtl.h (subreg_lowpart_parts_p, simplify_subreg): Declare. * emit-rtl.c (subreg_lowpart_parts_p): Break out from ... (subreg_lowpart_p): ... here. From-SVN: r42199
2001-05-17 17:00:35 +02:00
return NULL_RTX;
}
cse.c (fold_rtx): Use simplify_subreg. * cse.c (fold_rtx): Use simplify_subreg. * simplify-rtx.c (simplify_replace_rtx): Use simplify_gen_subreg. (simplify_gen_subreg): New. (simplify_rtx): Use simplify_subreg. * rtl.h (simplify_gen_subreg): Declare. From-SVN: r42221
2001-05-17 20:46:58 +02:00
/* Make a SUBREG operation or equivalent if it folds. */
rtx
simplify_gen_subreg (outermode, op, innermode, byte)
rtx op;
unsigned int byte;
enum machine_mode outermode, innermode;
{
rtx new;
/* Little bit of sanity checking. */
if (innermode == VOIDmode || outermode == VOIDmode
|| innermode == BLKmode || outermode == BLKmode)
abort ();
if (GET_MODE (op) != innermode
&& GET_MODE (op) != VOIDmode)
abort ();
if (byte % GET_MODE_SIZE (outermode)
|| byte >= GET_MODE_SIZE (innermode))
abort ();
* simplify-rtx.c (simplify_gen_subreg): Return null for QUEUED rtxes. From-SVN: r43933
2001-07-11 11:41:34 +02:00
if (GET_CODE (op) == QUEUED)
return NULL_RTX;
cse.c (fold_rtx): Use simplify_subreg. * cse.c (fold_rtx): Use simplify_subreg. * simplify-rtx.c (simplify_replace_rtx): Use simplify_gen_subreg. (simplify_gen_subreg): New. (simplify_rtx): Use simplify_subreg. * rtl.h (simplify_gen_subreg): Declare. From-SVN: r42221
2001-05-17 20:46:58 +02:00
new = simplify_subreg (outermode, op, innermode, byte);
if (new)
return new;
if (GET_CODE (op) == SUBREG || GET_MODE (op) == VOIDmode)
return NULL_RTX;
return gen_rtx_SUBREG (outermode, op, byte);
}
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
/* Simplify X, an rtx expression.
Return the simplified expression or NULL if no simplifications
were possible.
This is the preferred entry point into the simplification routines;
however, we still allow passes to call the more specific routines.
Right now GCC has three (yes, three) major bodies of RTL simplficiation
code that need to be unified.
1. fold_rtx in cse.c. This code uses various CSE specific
information to aid in RTL simplification.
2. simplify_rtx in combine.c. Similar to fold_rtx, except that
it uses combine specific information to aid in RTL
simplification.
3. The routines in this file.
Long term we want to only have one body of simplification code; to
get to that state I recommend the following steps:
1. Pour over fold_rtx & simplify_rtx and move any simplifications
which are not pass dependent state into these routines.
2. As code is moved by #1, change fold_rtx & simplify_rtx to
use this routine whenever possible.
3. Allow for pass dependent state to be provided to these
routines and add simplifications based on the pass dependent
state. Remove code from cse.c & combine.c that becomes
redundant/dead.
It will take time, but ultimately the compiler will be easier to
maintain and improve. It's totally silly that when we add a
simplification that it needs to be added to 4 places (3 for RTL
simplification and 1 for tree simplification. */
rtx
simplify_rtx (x)
rtx x;
{
rtlanal.c (find_reg_equal_equiv_note): New function. * rtlanal.c (find_reg_equal_equiv_note): New function. * simplify-rtx.c (simplify_gen_unary, simplify_gen_ternary): New fns. (simplify_gen_relational, simplify_replace_rtx): Likewise. * rtl.h: Add declarations for above functions. From-SVN: r39644
2001-02-13 21:43:13 +01:00
enum rtx_code code = GET_CODE (x);
enum machine_mode mode = GET_MODE (x);
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
switch (GET_RTX_CLASS (code))
{
case '1':
return simplify_unary_operation (code, mode,
XEXP (x, 0), GET_MODE (XEXP (x, 0)));
case 'c':
+ * simplify-rtx.c (simplify_rtx): Use swap_commutative_operands_p. + * simplify-rtx.c (simplify_rtx): Use swap_commutative_operands_p. Forgot to commit Friday. From-SVN: r43692
2001-07-02 17:43:38 +02:00
if (swap_commutative_operands_p (XEXP (x, 0), XEXP (x, 1)))
simplify-rtx.c (simplify_rtx): Canonicalize commutative expressions by putting complex operands first and... * simplify-rtx.c (simplify_rtx): Canonicalize commutative expressions by putting complex operands first and constants second. From-SVN: r43621
2001-06-28 02:14:23 +02:00
{
rtx tem;
tem = XEXP (x, 0);
XEXP (x, 0) = XEXP (x, 1);
XEXP (x, 1) = tem;
return simplify_binary_operation (code, mode,
XEXP (x, 0), XEXP (x, 1));
}
case '2':
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
return simplify_binary_operation (code, mode, XEXP (x, 0), XEXP (x, 1));
case '3':
case 'b':
return simplify_ternary_operation (code, mode, GET_MODE (XEXP (x, 0)),
rtlanal.c (find_reg_equal_equiv_note): New function. * rtlanal.c (find_reg_equal_equiv_note): New function. * simplify-rtx.c (simplify_gen_unary, simplify_gen_ternary): New fns. (simplify_gen_relational, simplify_replace_rtx): Likewise. * rtl.h: Add declarations for above functions. From-SVN: r39644
2001-02-13 21:43:13 +01:00
XEXP (x, 0), XEXP (x, 1),
XEXP (x, 2));
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
case '<':
simplify-rtx.c (simplify_rtx): Don't pass VOIDmode to simplify_relational_operation() unless... * simplify-rtx.c (simplify_rtx): Don't pass VOIDmode to simplify_relational_operation() unless both operands are of VOIDmode. * cse.c (fold_rtx): Likewise. From-SVN: r35904
2000-08-23 09:59:06 +02:00
return simplify_relational_operation (code,
rtlanal.c (find_reg_equal_equiv_note): New function. * rtlanal.c (find_reg_equal_equiv_note): New function. * simplify-rtx.c (simplify_gen_unary, simplify_gen_ternary): New fns. (simplify_gen_relational, simplify_replace_rtx): Likewise. * rtl.h: Add declarations for above functions. From-SVN: r39644
2001-02-13 21:43:13 +01:00
((GET_MODE (XEXP (x, 0))
!= VOIDmode)
simplify-rtx.c (simplify_rtx): Don't pass VOIDmode to simplify_relational_operation() unless... * simplify-rtx.c (simplify_rtx): Don't pass VOIDmode to simplify_relational_operation() unless both operands are of VOIDmode. * cse.c (fold_rtx): Likewise. From-SVN: r35904
2000-08-23 09:59:06 +02:00
? GET_MODE (XEXP (x, 0))
: GET_MODE (XEXP (x, 1))),
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
XEXP (x, 0), XEXP (x, 1));
cse.c (fold_rtx): Use simplify_subreg. * cse.c (fold_rtx): Use simplify_subreg. * simplify-rtx.c (simplify_replace_rtx): Use simplify_gen_subreg. (simplify_gen_subreg): New. (simplify_rtx): Use simplify_subreg. * rtl.h (simplify_gen_subreg): Declare. From-SVN: r42221
2001-05-17 20:46:58 +02:00
case 'x':
/* The only case we try to handle is a SUBREG. */
if (code == SUBREG)
return simplify_gen_subreg (mode, SUBREG_REG (x),
GET_MODE (SUBREG_REG (x)),
SUBREG_BYTE (x));
return NULL;
simplify-rtx.c: New file. * simplify-rtx.c: New file. * Makefile.in (OBJS): Add simplify-rtx.o (simplify-rtx.o): Add dependencies. * rtl.h (simplify_gen_binary, simplify_rtx): Add prototypes. * cse.c: Use simplify_gen_binary intead of cse_gen_binary. (cse_gen_binary, simplify_unary_operation): Delete. (simplify_binary_operation, simplify_plus_minus): Likewise. (check_fold_consts, simplify_relation_operation): Likewise. (simplify_ternary_operation): Likewise. (delete_trivially_dead_insns): Simplify the contents of the REG_EQUAL note before trying to substitute it into the source of the reg-reg copy at the end of a libcall sequence. From-SVN: r30295
1999-11-01 01:18:23 +01:00
default:
return NULL;
}
}