diff options
| author | Martin Liska <mliska@suse.cz> | 2016-06-02 14:51:57 +0200 |
|---|---|---|
| committer | Martin Liska <marxin@gcc.gnu.org> | 2016-06-02 12:51:57 +0000 |
| commit | f3c5ecc2b984e186f043ad03cc7a96a6275f4670 (patch) | |
| tree | e39cf66c60d50eee2d9159123f798e6d3765277e /gcc/predict.c | |
| parent | a91807c5fc51615156e6858ae530247450c8c0b8 (diff) | |
| download | gcc-f3c5ecc2b984e186f043ad03cc7a96a6275f4670.zip gcc-f3c5ecc2b984e186f043ad03cc7a96a6275f4670.tar.gz gcc-f3c5ecc2b984e186f043ad03cc7a96a6275f4670.tar.bz2 | |
Fix first match heuristics
* predict.c (combine_predictions_for_bb): Fix first match in
cases where a first predictor contains more than one occurence
in list of predictors. Take the best value in such case.
* gcc.dg/predict-9.c: New test.
From-SVN: r237036
Diffstat (limited to 'gcc/predict.c')
| -rw-r--r-- | gcc/predict.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/gcc/predict.c b/gcc/predict.c index e9dda20..429f44e 100644 --- a/gcc/predict.c +++ b/gcc/predict.c @@ -939,7 +939,7 @@ combine_predictions_for_bb (basic_block bb, bool dry_run) pred2; pred2 = pred2->ep_next) if (pred2 != pred && pred2->ep_predictor == pred->ep_predictor) { - int probability2 = pred->ep_probability; + int probability2 = pred2->ep_probability; if (pred2->ep_edge != first) probability2 = REG_BR_PROB_BASE - probability2; |