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| author | Bernd Schmidt <bernds@redhat.com> | 2017-01-23 16:17:33 +0000 |
|---|---|---|
| committer | Bernd Schmidt <bernds@gcc.gnu.org> | 2017-01-23 16:17:33 +0000 |
| commit | e9c4fbe9c1eff61ffe2aa31c67cef2ffd346f674 (patch) | |
| tree | 7bf4e542d8044a3f0fe9963033e40db0f94ed55e /gcc/ifcvt.c | |
| parent | 8539a302cdc56a76a797a18a83d5d68d9cd9f94a (diff) | |
| download | gcc-e9c4fbe9c1eff61ffe2aa31c67cef2ffd346f674.zip gcc-e9c4fbe9c1eff61ffe2aa31c67cef2ffd346f674.tar.gz gcc-e9c4fbe9c1eff61ffe2aa31c67cef2ffd346f674.tar.bz2 | |
re PR rtl-optimization/78634 (30% performance drop after r242832.)
PR rtl-optimization/78634
* config/i386/i386.c (ix86_max_noce_ifcvt_seq_cost): New function.
(TARGET_MAX_NOCE_IFCVT_SEQ_COST): Define.
* ifcvt.c (noce_try_cmove): Add missing cost check.
testsuite/
PR rtl-optimization/78634
* gcc.target/i386/funcspec-11.c: Also pass -mtune=i686.
From-SVN: r244816
Diffstat (limited to 'gcc/ifcvt.c')
| -rw-r--r-- | gcc/ifcvt.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/gcc/ifcvt.c b/gcc/ifcvt.c index 6d30639..e2d6c6f 100644 --- a/gcc/ifcvt.c +++ b/gcc/ifcvt.c @@ -1826,7 +1826,7 @@ noce_try_cmove (struct noce_if_info *if_info) noce_emit_move_insn (if_info->x, target); seq = end_ifcvt_sequence (if_info); - if (!seq) + if (!seq || !noce_conversion_profitable_p (seq, if_info)) return FALSE; emit_insn_before_setloc (seq, if_info->jump, |