1322177dbd
* 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
72 lines
2.5 KiB
C
72 lines
2.5 KiB
C
/* Static Single Assignment (SSA) definitions for GNU C-Compiler
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Copyright (C) 2000, 2001 Free Software Foundation, Inc.
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Written by Jeffrey D. Oldham <oldham@codesourcery.com>.
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 2, or (at your option) any later
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version.
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GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with GCC; see the file COPYING. If not, write to the Free
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Software Foundation, 59 Temple Place - Suite 330, Boston, MA
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02111-1307, USA. */
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/* Main SSA routines. */
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extern void convert_to_ssa PARAMS ((void));
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extern void convert_from_ssa PARAMS ((void));
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typedef int (*successor_phi_fn) PARAMS ((rtx, int, int, void *));
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extern int for_each_successor_phi PARAMS ((basic_block bb,
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successor_phi_fn,
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void *));
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void compute_dominance_frontiers PARAMS ((sbitmap *frontiers, int *idom));
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extern int remove_phi_alternative PARAMS ((rtx, basic_block));
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/* Optimizations. */
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/* In ssa-dce.c */
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extern void ssa_eliminate_dead_code PARAMS ((void));
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/* In ssa-ccp.c */
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extern void ssa_const_prop PARAMS ((void));
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/* SSA definitions and uses. */
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/* This flag is set when the CFG is in SSA form. */
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extern int in_ssa_form;
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/* Element I is the single instruction that sets register I. */
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extern varray_type ssa_definition;
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/* Element I is an INSN_LIST of instructions that use register I. */
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extern varray_type ssa_uses;
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/* Specify which hard registers should be converted. */
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/* All pseudo-registers (having register number >=
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FIRST_PSEUDO_REGISTER) and hard registers satisfying
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CONVERT_HARD_REGISTER_TO_SSA_P are converted to SSA form. */
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/* Given a hard register number REG_NO, return nonzero if and only if
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the register should be converted to SSA. */
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#ifndef CONVERT_HARD_REGISTER_TO_SSA_P
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#define CONVERT_HARD_REGISTER_TO_SSA_P(REG_NO) (0) /* default of no hard registers */
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#endif /* CONVERT_HARD_REGISTER_TO_SSA_P */
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/* Given a register number REG_NO, return nonzero if and only if the
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register should be converted to SSA. */
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#define CONVERT_REGISTER_TO_SSA_P(REG_NO) \
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((!HARD_REGISTER_NUM_P (REG_NO)) || \
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(CONVERT_HARD_REGISTER_TO_SSA_P (REG_NO)))
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