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| author | hubicka <hubicka@138bc75d-0d04-0410-961f-82ee72b054a4> | 2001-12-13 11:34:11 +0000 |
|---|---|---|
| committer | hubicka <hubicka@138bc75d-0d04-0410-961f-82ee72b054a4> | 2001-12-13 11:34:11 +0000 |
| commit | ba38e12bb0d3217ec8d46df4431fff1f944e432e (patch) | |
| tree | 370e6c425d4395a411fdf96a2629203ee94049f1 /gcc/loop.h | |
| parent | fd6162edabd7190d9e8d4c9eee3bea1eb59d2778 (diff) | |
| download | gcc-ba38e12bb0d3217ec8d46df4431fff1f944e432e.tar.gz | |
* predict.c (estimate_probability): Reorganize opcode heuristics.
* predict.def (PRED_OPCODE_POSITIVE, PRED_OPCODE_NONEQUAL,
PRED_FPOPCODE): New.
* i386.c (override_options): Recognize various CPU variants and set
SSE/MMX/3dNOW flags accordingly.
* i386.h (MASK_MMX_SET, MASK_SSE_SET, MASK_SSE2_SET, MASK_3DNOW_SET,
MASK_3DNOW_A_SET): New.
(MASK_ACCUMULATE_OUTGOING_ARGS_SET): New.
(MASK_NO_ACCUMULATE_OUTGOING_ARGS): Delete.
(MASK_*): Renumber.
(TARGET_FLAGS): Use new masks.
(CPP_CPU_SPECS): Recognize new CPU variants.
* invoke.texi (-mcpu): Update documentation.
* flags.h (flag_prefetch_loop_arrays): Declare.
* loop.h (LOOP_PREFETCH): Define new constant.
* loop.c (strength_reduce): Call emit_prefetch_instructions.
(MAX_PREFETCHES, PREFETCH_BLOCKS_BEFORE_LOOP_MAX,
PREFETCH_BLOCKS_BEFORE_LOOP_MIN, PREFETCH_BLOCKS_IN_LOOP_MIN): New
constants.
(check_store_data): New structure.
(check_store, emit_prefetch_instructions, rtx_equal_for_prefetch_p):
New functions.
* toplev.c: Include insn-flags.h.
(flag_prefetch_loop_arrays): New global variable.
(lang_independent_option): Add -fprefetch-loop-arrays.
(rest_of_compilation) Pass LOOP_PREFETCH when flag_prefetch_loop_arrays
is set.
* Makefile.in (toplev.c): Depend on insn-flags.h.
* invoke.texi (-fprefetch-loop-arrays): Document.
* predict.c (estimate_probability): Distribute the loop exit
probability according to number of exit edges.
* cfgcleanup.c (insns_match_p): Break out from ...;
(flow_find_cross_jump): ... here;
(outgoing_edges_match): Add parameter MODE; attempt to match everything
except for tablejumps.
(try_crossjump_to_edge): Accept complex edges.
(try_crossjump_bb): Likewise.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@47969 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/loop.h')
| -rw-r--r-- | gcc/loop.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/gcc/loop.h b/gcc/loop.h index d6f83804948..f376fc0fcd5 100644 --- a/gcc/loop.h +++ b/gcc/loop.h @@ -27,6 +27,7 @@ Software Foundation, 59 Temple Place - Suite 330, Boston, MA /* Flags passed to loop_optimize. */ #define LOOP_UNROLL 1 #define LOOP_BCT 2 +#define LOOP_PREFETCH 4 /* Get the loop info pointer of a loop. */ #define LOOP_INFO(LOOP) ((struct loop_info *) (LOOP)->aux) |