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| author | Jakub Jelinek <jakub@redhat.com> | 2017-04-04 19:52:27 +0200 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2017-04-04 19:52:27 +0200 |
| commit | d16e2ddd2666efed093ce826228c786715823cb4 (patch) | |
| tree | 90baf0fa1babd2f5a7a6862baa9740fc718762aa /gcc/targhooks.h | |
| parent | e2b2c4b9fbb1c5ee3c8756e6b6ecc6e490fad035 (diff) | |
| download | gcc-d16e2ddd2666efed093ce826228c786715823cb4.zip gcc-d16e2ddd2666efed093ce826228c786715823cb4.tar.gz gcc-d16e2ddd2666efed093ce826228c786715823cb4.tar.bz2 | |
re PR tree-optimization/79390 (10% performance drop in SciMark2 LU after r242550)
PR tree-optimization/79390
* target.h (struct noce_if_info): Declare.
* targhooks.h (default_noce_conversion_profitable_p): Declare.
* target.def (noce_conversion_profitable_p): New target hook.
* ifcvt.h (struct noce_if_info): New type, moved from ...
* ifcvt.c (struct noce_if_info): ... here.
(noce_conversion_profitable_p): Renamed to ...
(default_noce_conversion_profitable_p): ... this. No longer
static nor inline.
(noce_try_store_flag_constants, noce_try_addcc,
noce_try_store_flag_mask, noce_try_cmove, noce_try_cmove_arith,
noce_convert_multiple_sets): Use targetm.noce_conversion_profitable_p
instead of noce_conversion_profitable_p.
* config/i386/i386.c: Include ifcvt.h.
(ix86_option_override_internal): Don't override
PARAM_MAX_RTL_IF_CONVERSION_INSNS default.
(ix86_noce_conversion_profitable_p): New function.
(TARGET_NOCE_CONVERSION_PROFITABLE_P): Redefine.
* config/i386/x86-tune.def (X86_TUNE_ONE_IF_CONV_INSN): Adjust comment.
* doc/tm.texi.in (TARGET_NOCE_CONVERSION_PROFITABLE_P): Add.
* doc/tm.texi: Regenerated.
* gcc.target/i386/pr79390.c: New test.
* gcc.dg/ifcvt-4.c: Use -mtune-ctrl=^one_if_conv_insn for i?86/x86_64.
From-SVN: r246686
Diffstat (limited to 'gcc/targhooks.h')
| -rw-r--r-- | gcc/targhooks.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/gcc/targhooks.h b/gcc/targhooks.h index a5565f5..18070df 100644 --- a/gcc/targhooks.h +++ b/gcc/targhooks.h @@ -257,6 +257,8 @@ extern void default_setup_incoming_vararg_bounds (cumulative_args_t ca ATTRIBUTE extern bool default_optab_supported_p (int, machine_mode, machine_mode, optimization_type); extern unsigned int default_max_noce_ifcvt_seq_cost (edge); +extern bool default_noce_conversion_profitable_p (rtx_insn *, + struct noce_if_info *); extern unsigned int default_min_arithmetic_precision (void); extern enum flt_eval_method |