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| author | Jan Hubicka <jh@suse.cz> | 2007-02-27 01:07:03 +0100 |
|---|---|---|
| committer | Jan Hubicka <hubicka@gcc.gnu.org> | 2007-02-27 00:07:03 +0000 |
| commit | 75b6bb627c3dd2ae3b8b338903f94610666a9111 (patch) | |
| tree | 6cbbedd1764b99506933860619b93c22f1d16648 /gcc/predict.def | |
| parent | 48982394521bb1a742a11aa5c17a25a9acd96639 (diff) | |
| download | gcc-75b6bb627c3dd2ae3b8b338903f94610666a9111.tar.gz | |
predict.def: Set outcomes according to more recent results.
* predict.def: Set outcomes according to more recent results.
(PRED_LOOP_CONDITION, PRED_LOOP_PRECONDITIONING, PRED_LOOP_HEADER):
Remove dead predictors.
* predict.c (return_prediction): Fix pasto.
From-SVN: r122347
Diffstat (limited to 'gcc/predict.def')
| -rw-r--r-- | gcc/predict.def | 33 |
1 files changed, 11 insertions, 22 deletions
diff --git a/gcc/predict.def b/gcc/predict.def index 22474b3db40..da27031f7c8 100644 --- a/gcc/predict.def +++ b/gcc/predict.def @@ -74,41 +74,30 @@ DEF_PREDICTOR (PRED_NORETURN, "noreturn call", HITRATE (99), PRED_FLAG_FIRST_MATCH) /* Loopback edge is taken. */ -DEF_PREDICTOR (PRED_LOOP_BRANCH, "loop branch", HITRATE (89), +DEF_PREDICTOR (PRED_LOOP_BRANCH, "loop branch", HITRATE (86), PRED_FLAG_FIRST_MATCH) /* Edge causing loop to terminate is probably not taken. */ -DEF_PREDICTOR (PRED_LOOP_EXIT, "loop exit", HITRATE (90), +DEF_PREDICTOR (PRED_LOOP_EXIT, "loop exit", HITRATE (91), PRED_FLAG_FIRST_MATCH) -/* Condition emitted by preconditiong code to ensure that variable - setting number of iterations is greater than initial value of iterator. */ -DEF_PREDICTOR (PRED_LOOP_CONDITION, "loop condition", PROB_VERY_LIKELY, 0) - -/* Preconditioning makes linear list of branches. */ -DEF_PREDICTOR (PRED_LOOP_PRECONDITIONING, "loop preconditioning", PROB_VERY_LIKELY, 0) - -/* Copied condition for the first iteration of loop is probably true. */ -DEF_PREDICTOR (PRED_LOOP_HEADER, "loop header", HITRATE (64), 0) - /* Pointers are usually not NULL. */ -DEF_PREDICTOR (PRED_POINTER, "pointer", HITRATE (81), 0) -DEF_PREDICTOR (PRED_TREE_POINTER, "pointer (on trees)", HITRATE (81), 0) +DEF_PREDICTOR (PRED_POINTER, "pointer", HITRATE (85), 0) +DEF_PREDICTOR (PRED_TREE_POINTER, "pointer (on trees)", HITRATE (85), 0) /* NE is probable, EQ not etc... */ DEF_PREDICTOR (PRED_OPCODE_POSITIVE, "opcode values positive", HITRATE (79), 0) DEF_PREDICTOR (PRED_OPCODE_NONEQUAL, "opcode values nonequal", HITRATE (71), 0) DEF_PREDICTOR (PRED_FPOPCODE, "fp_opcode", HITRATE (90), 0) -DEF_PREDICTOR (PRED_TREE_OPCODE_POSITIVE, "opcode values positive (on trees)", HITRATE (79), 0) -DEF_PREDICTOR (PRED_TREE_OPCODE_NONEQUAL, "opcode values nonequal (on trees)", HITRATE (71), 0) +DEF_PREDICTOR (PRED_TREE_OPCODE_POSITIVE, "opcode values positive (on trees)", HITRATE (70), 0) +DEF_PREDICTOR (PRED_TREE_OPCODE_NONEQUAL, "opcode values nonequal (on trees)", HITRATE (69), 0) DEF_PREDICTOR (PRED_TREE_FPOPCODE, "fp_opcode (on trees)", HITRATE (90), 0) /* Branch guarding call is probably taken. */ -DEF_PREDICTOR (PRED_CALL, "call", HITRATE (70), 0) +DEF_PREDICTOR (PRED_CALL, "call", HITRATE (69), 0) /* Branch causing function to terminate is probably not taken. */ -DEF_PREDICTOR (PRED_EARLY_RETURN, "early return", HITRATE (67), 0) -DEF_PREDICTOR (PRED_TREE_EARLY_RETURN, "early return (on trees)", HITRATE (67), 0) +DEF_PREDICTOR (PRED_TREE_EARLY_RETURN, "early return (on trees)", HITRATE (45), 0) /* Branch containing goto is probably not taken. */ DEF_PREDICTOR (PRED_GOTO, "goto", HITRATE (70), 0) @@ -117,10 +106,10 @@ DEF_PREDICTOR (PRED_GOTO, "goto", HITRATE (70), 0) DEF_PREDICTOR (PRED_CONST_RETURN, "const return", HITRATE (95), 0) /* Branch ending with return negative constant is probably not taken. */ -DEF_PREDICTOR (PRED_NEGATIVE_RETURN, "negative return", HITRATE (96), 0) +DEF_PREDICTOR (PRED_NEGATIVE_RETURN, "negative return", HITRATE (77), 0) /* Branch ending with return; is probably not taken */ -DEF_PREDICTOR (PRED_NULL_RETURN, "null return", HITRATE (90), 0) +DEF_PREDICTOR (PRED_NULL_RETURN, "null return", HITRATE (96), 0) /* Branches to a mudflap bounds check are extremely unlikely. */ -DEF_PREDICTOR (PRED_MUDFLAP, "mudflap check", HITRATE (99), 0) +DEF_PREDICTOR (PRED_MUDFLAP, "mudflap check", PROB_VERY_LIKELY, 0) |