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

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
ad730fac · Jan Hubicka · Jan Hubicka · 0c22e441 · ad730fac · ad730fac
Commit ad730fac authored Jan 10, 2017 by Jan Hubicka Committed by Jan Hubicka Jan 10, 2017
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gcc/ChangeLog
+5 -0

gcc/predict.def
+1 -1

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--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
+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

--- 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