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| author | Jan Hubicka <hubicka@ucw.cz> | 2017-01-08 10:53:06 +0100 |
|---|---|---|
| committer | Jan Hubicka <hubicka@gcc.gnu.org> | 2017-01-08 09:53:06 +0000 |
| commit | d8dc87c24cf4883d3934d285a9bf1e5ca5384022 (patch) | |
| tree | b3393ff7dd938aefc960f3822403b88fe74e7ee0 | |
| parent | 38285dd71996a0020d3bd24fb0c366e8859368af (diff) | |
| download | gcc-d8dc87c24cf4883d3934d285a9bf1e5ca5384022.zip gcc-d8dc87c24cf4883d3934d285a9bf1e5ca5384022.tar.gz gcc-d8dc87c24cf4883d3934d285a9bf1e5ca5384022.tar.bz2 | |
re PR middle-end/77484 (Static branch predictor causes ~6-8% regression of SPEC2000 GAP)
PR middle-end/77484
* predict.def (PRED_INDIR_CALL): Set to 86.
From-SVN: r244207
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/predict.def | 2 |
2 files changed, 6 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 9d710df..375b79a 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2017-01-01 Jan Hubicka <hubicka@ucw.cz> + + PR middle-end/77484 + * predict.def (PRED_INDIR_CALL): Set to 86. + 2017-01-07 Sandra Loosemore <sandra@codesourcery.com> PR preprocessor/54124 diff --git a/gcc/predict.def b/gcc/predict.def index 5ddb36a..f3b17c7 100644 --- a/gcc/predict.def +++ b/gcc/predict.def @@ -121,7 +121,7 @@ DEF_PREDICTOR (PRED_CALL, "call", HITRATE (55), 0) /* PRED_CALL is not very reliable predictor and it turns out to be even less reliable for indirect calls and polymorphic calls. For spec2k6 the predictio nis slightly in the direction of taking the call. */ -DEF_PREDICTOR (PRED_INDIR_CALL, "indirect call", HITRATE (51), 0) +DEF_PREDICTOR (PRED_INDIR_CALL, "indirect call", HITRATE (86), 0) DEF_PREDICTOR (PRED_POLYMORPHIC_CALL, "polymorphic call", HITRATE (59), 0) /* Recursive calls are usually not taken or the function will recurse |