diff options
| author | Jan Hubicka <jh@suse.cz> | 2006-08-24 00:29:14 +0200 |
|---|---|---|
| committer | Jan Hubicka <hubicka@gcc.gnu.org> | 2006-08-23 22:29:14 +0000 |
| commit | 2c9e13f37d1b4e6bb027499de9e9d5c7a5d040b5 (patch) | |
| tree | f848a4c4747fe1d9158aa3bfedbaa571b97b8c80 /gcc/basic-block.h | |
| parent | a4d0390b4488cc159cb7389b778cc92a504f6796 (diff) | |
| download | gcc-2c9e13f37d1b4e6bb027499de9e9d5c7a5d040b5.zip gcc-2c9e13f37d1b4e6bb027499de9e9d5c7a5d040b5.tar.gz gcc-2c9e13f37d1b4e6bb027499de9e9d5c7a5d040b5.tar.bz2 | |
predict.c (probability_reliable_p): New predicate.
* predict.c (probability_reliable_p): New predicate.
(edge_probability_reliable_p, br_prob_note_reliable_p): Likewise.
(predict_loops): Do not predict loop exit with less than 2%
probability.
* basic-block.h (edge_probability_reliable_p,
br_prob_note_reliable_p): Declare.
* ia64.h (ia64_print_operand): Do not disable on-chip branch
prediction when static predictor is not reliable.
* rs6000.c (output_cbranch): Likewise.
From-SVN: r116358
Diffstat (limited to 'gcc/basic-block.h')
| -rw-r--r-- | gcc/basic-block.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/gcc/basic-block.h b/gcc/basic-block.h index 9be9097..bc9f665 100644 --- a/gcc/basic-block.h +++ b/gcc/basic-block.h @@ -880,6 +880,8 @@ extern void rtl_predict_edge (edge, enum br_predictor, int); extern void predict_edge_def (edge, enum br_predictor, enum prediction); extern void guess_outgoing_edge_probabilities (basic_block); extern void remove_predictions_associated_with_edge (edge); +extern bool edge_probability_reliable_p (edge); +extern bool br_prob_note_reliable_p (rtx); /* In flow.c */ extern void init_flow (void); |