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| author | Jan Hubicka <hubicka@ucw.cz> | 2017-01-10 10:14:54 +0100 |
|---|---|---|
| committer | Jan Hubicka <hubicka@gcc.gnu.org> | 2017-01-10 09:14:54 +0000 |
| commit | ad730facfbf77c30042b711802b1aff317e2b8e2 (patch) | |
| tree | 7c1bde9e97e703b58a7704678a2210b4c1de5da4 /gcc | |
| parent | 0c22e4415fe9e88acaa99e72d33f4500d557ce68 (diff) | |
| download | gcc-ad730facfbf77c30042b711802b1aff317e2b8e2.zip gcc-ad730facfbf77c30042b711802b1aff317e2b8e2.tar.gz gcc-ad730facfbf77c30042b711802b1aff317e2b8e2.tar.bz2 | |
re PR middle-end/77484 (Static branch predictor causes ~6-8% regression of SPEC2000 GAP)
PR middle-end/77484
* predict.def (PRED_CALL): Set to 67.
From-SVN: r244260
Diffstat (limited to 'gcc')
| -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 5f72884..4878272 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_CALL): Set to 67. + 2017-01-09 Eric Botcazou <ebotcazou@adacore.com> * expr.c (store_field): In the bitfield case, if the value comes from diff --git a/gcc/predict.def b/gcc/predict.def index f3b17c7..e96be12 100644 --- a/gcc/predict.def +++ b/gcc/predict.def @@ -116,7 +116,7 @@ DEF_PREDICTOR (PRED_TREE_OPCODE_NONEQUAL, "opcode values nonequal (on trees)", DEF_PREDICTOR (PRED_TREE_FPOPCODE, "fp_opcode (on trees)", HITRATE (90), 0) /* Branch guarding call is probably taken. */ -DEF_PREDICTOR (PRED_CALL, "call", HITRATE (55), 0) +DEF_PREDICTOR (PRED_CALL, "call", HITRATE (67), 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 |