ede7cd4499
Merge peephole2 from new_ia32_branch:
* Makefile.in (STAGESTUFF): Add *.peephole2.
(mostlyclean): Likewise.
(recog.o): Depend on resource.h.
* final.c (peephole): Conditionalize decl on HAVE_peephole.
(final_scan_insn): Likewise for the invocation of peephole.
* genconfig.c (main): Look for peephole and peephole2 patterns.
Emit HAVE_peephole* accordingly.
* genpeep.c (main): Conditionalize entire output on HAVE_peephole.
* flags.h (flag_peephole2): Declare.
* toplev.c: New pass peephole2. New flag -fpeephole2.
* genattrtab.c (main): Count DEFINE_PEEPHOLE2.
* gencodes.c (main): Likewise.
* genextract.c (main): Likewise.
* genoutput.c (main): Likewise.
* genemit.c (max_operand_1): Look for the max scratch operand.
(gen_rtx_scratch): New.
(gen_exp): Use it, and pass on new arg subroutine_type.
(gen_expand): Take max scratch into account.
(gen_split): Emit peephole2 functions.
(output_peephole2_scratch): New.
(main): Include hard-reg-set.h and resource.h. Handle peephole2.
* genrecog.c (routine_type): Add PEEPHOLE2.
(IS_SPLIT): New.
(make_insn_sequence): Match outer parallel for peep2. Discard
top level scratches and dups.
(add_to_sequence): New args insn_type and top. Update all callers.
Handle toplevel peep2 matching insns.
(write_subroutine): Handle peep2.
(write_tree_1): Likewise.
(write_tree): Likewise.
(main): Likewise.
(change_state): New arg afterward. Update all callers.
Handle matching separate insns.
* recog.c (recog_next_insn): New.
(peephole2_optimize): New.
* rtl.def (DEFINE_PEEPHOLE2): New.
* resource.c (find_free_register): New argument last_insn. Use it
to find a register available through the entire span.
* resource.h (find_free_register): Update prototype.
From-SVN: r29015
47 lines
1.9 KiB
C
47 lines
1.9 KiB
C
/* Definitions for computing resource usage of specific insns.
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Copyright (C) 1999 Free Software Foundation, Inc.
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This file is part of GNU CC.
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GNU CC is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU CC is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License 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 GNU CC; see the file COPYING. If not, write to
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the Free Software Foundation, 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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/* Macro to clear all resources. */
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#define CLEAR_RESOURCE(RES) \
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do { (RES)->memory = (RES)->unch_memory = (RES)->volatil = (RES)->cc = 0; \
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CLEAR_HARD_REG_SET ((RES)->regs); } while (0)
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/* The resources used by a given insn. */
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struct resources
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{
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char memory; /* Insn sets or needs a memory location. */
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char unch_memory; /* Insn sets of needs a "unchanging" MEM. */
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char volatil; /* Insn sets or needs a volatile memory loc. */
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char cc; /* Insn sets or needs the condition codes. */
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HARD_REG_SET regs; /* Which registers are set or needed. */
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};
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extern void mark_target_live_regs PROTO((rtx, rtx, struct resources *));
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extern void mark_set_resources PROTO((rtx, struct resources *, int,
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int));
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extern void mark_referenced_resources PROTO((rtx, struct resources *, int));
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extern void clear_hashed_info_for_insn PROTO((rtx));
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extern void incr_ticks_for_insn PROTO((rtx));
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extern void mark_end_of_function_resources PROTO ((rtx, int));
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extern void init_resource_info PROTO((rtx));
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extern void free_resource_info PROTO((void));
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extern rtx find_free_register PROTO((rtx, rtx, char *, int,
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HARD_REG_SET *));
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