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predict.def (PRED_NORETURN, [...]): Make probabilities match reality.

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* predict.def (PRED_NORETURN, PRED_OPCODE_POSITIVE, PRED_OPCODE_NONEQUAL,
	PRED_ERROR_RETURN): Make probabilities match reality.

From-SVN: r48041
This commit is contained in:
Jan Hubicka 2001-12-15 14:14:06 +01:00 committed by Jan Hubicka
parent 275b60d6d8
commit dcfcd43658
2 changed files with 10 additions and 5 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
Sat Dec 15 14:13:03 CET 2001 Jan Hubicka <jh@suse.cz>
* predict.def (PRED_NORETURN, PRED_OPCODE_POSITIVE, PRED_OPCODE_NONEQUAL,
PRED_ERROR_RETURN): Make probabilities match reality.
2001-12-15 Jakub Jelinek <jakub@redhat.com>
* configure.in: Check for ld.

10
gcc/predict.def
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@ -64,7 +64,7 @@ DEF_PREDICTOR (PRED_BUILTIN_EXPECT, "__builtin_expect", PROB_VERY_LIKELY,
PRED_FLAG_FIRST_MATCH)
/* Branch to basic block containing call marked by noreturn attribute. */
DEF_PREDICTOR (PRED_NORETURN, "noreturn call", PROB_ALWAYS,
DEF_PREDICTOR (PRED_NORETURN, "noreturn call", HITRATE (99),
PRED_FLAG_FIRST_MATCH)
/* Loopback edge is taken. */
@ -86,15 +86,15 @@ DEF_PREDICTOR (PRED_LOOP_PRECONDITIONING, "loop preconditioning", PROB_VERY_LIKE
DEF_PREDICTOR (PRED_LOOP_HEADER, "loop header", HITRATE (64), 0)
/* Pointers are usually not NULL. */
DEF_PREDICTOR (PRED_POINTER, "pointer", HITRATE (83), 0)
DEF_PREDICTOR (PRED_POINTER, "pointer", HITRATE (81), 0)
/* NE is probable, EQ not etc... */
DEF_PREDICTOR (PRED_OPCODE_POSITIVE, "opcode values positive", HITRATE (78), 0)
DEF_PREDICTOR (PRED_OPCODE_NONEQUAL, "opcode values nonequal", HITRATE (70), 0)
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)
/* Branch guarding call is probably taken. */
DEF_PREDICTOR (PRED_CALL, "call", HITRATE (70), 0)
/* Branch causing function to terminate is probably not taken. */
DEF_PREDICTOR (PRED_ERROR_RETURN, "error return", PROB_LIKELY, 0)
DEF_PREDICTOR (PRED_ERROR_RETURN, "error return", HITRATE (52), 0)