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| author | Jan Hubicka <jh@suse.cz> | 2005-06-03 21:03:29 +0200 |
|---|---|---|
| committer | Jan Hubicka <hubicka@gcc.gnu.org> | 2005-06-03 19:03:29 +0000 |
| commit | 3809e99053b8195163c43228e54831704c35484c (patch) | |
| tree | dccec4c166610579fbf93533c4da6b37727bb546 /gcc | |
| parent | 7c9ac5c0354c587ba84956a4a34584ec2c7648cb (diff) | |
| download | gcc-3809e99053b8195163c43228e54831704c35484c.zip gcc-3809e99053b8195163c43228e54831704c35484c.tar.gz gcc-3809e99053b8195163c43228e54831704c35484c.tar.bz2 | |
basic-block.h (remove_predictions_associated_with_edge): Declare.
* basic-block.h (remove_predictions_associated_with_edge): Declare.
* cfg.c (remove_edge): Use it.
* predict.c (remove_predictions_associated_with_edge): New function.
From-SVN: r100551
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/basic-block.h | 1 | ||||
| -rw-r--r-- | gcc/cfg.c | 1 | ||||
| -rw-r--r-- | gcc/predict.c | 18 |
4 files changed, 26 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 22136dd..7712388 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2005-06-03 Jan Hubicka <jh@suse.cz> + + * basic-block.h (remove_predictions_associated_with_edge): Declare. + * cfg.c (remove_edge): Use it. + * predict.c (remove_predictions_associated_with_edge): New function. + 2005-06-03 Pat Haugen <pthaugen@us.ibm.com> * config/rs6000/rs6000.c (rs6000_conditional_register_usage): diff --git a/gcc/basic-block.h b/gcc/basic-block.h index ad89fa5..5c033df 100644 --- a/gcc/basic-block.h +++ b/gcc/basic-block.h @@ -869,6 +869,7 @@ extern void tree_predict_edge (edge, enum br_predictor, int); 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); /* In flow.c */ extern void init_flow (void); @@ -349,6 +349,7 @@ make_single_succ_edge (basic_block src, basic_block dest, int flags) void remove_edge (edge e) { + remove_predictions_associated_with_edge (e); execute_on_shrinking_pred (e); disconnect_src (e); diff --git a/gcc/predict.c b/gcc/predict.c index 25f97f7..8ca44f6 100644 --- a/gcc/predict.c +++ b/gcc/predict.c @@ -240,6 +240,24 @@ tree_predict_edge (edge e, enum br_predictor predictor, int probability) i->edge = e; } +/* Remove all predictions on given basic block that are attached + to edge E. */ +void +remove_predictions_associated_with_edge (edge e) +{ + if (e->src->predictions) + { + struct edge_prediction **prediction = &e->src->predictions; + while (*prediction) + { + if ((*prediction)->edge == e) + *prediction = (*prediction)->next; + else + prediction = &((*prediction)->next); + } + } +} + /* Return true when we can store prediction on insn INSN. At the moment we represent predictions only on conditional jumps, not at computed jump or other complicated cases. */ |