diff options
Diffstat (limited to 'gcc/predict.c')
| -rw-r--r-- | gcc/predict.c | 32 |
1 files changed, 2 insertions, 30 deletions
diff --git a/gcc/predict.c b/gcc/predict.c index 88de74b..d344907 100644 --- a/gcc/predict.c +++ b/gcc/predict.c @@ -852,37 +852,9 @@ estimate_probability (struct loops *loops_info) /* Attach the combined probability to each conditional jump. */ FOR_EACH_BB (bb) - if (JUMP_P (BB_END (bb)) - && any_condjump_p (BB_END (bb)) - && bb->succ->succ_next != NULL) - combine_predictions_for_insn (BB_END (bb), bb); + combine_predictions_for_insn (BB_END (bb), bb); - remove_fake_exit_edges (); - /* Fill in the probability values in flowgraph based on the REG_BR_PROB - notes. */ - FOR_EACH_BB (bb) - { - rtx last_insn = BB_END (bb); - - if (!can_predict_insn_p (last_insn)) - { - /* We can predict only conditional jumps at the moment. - Expect each edge to be equally probable. - ?? In the future we want to make abnormal edges improbable. */ - int nedges = 0; - edge e; - - for (e = bb->succ; e; e = e->succ_next) - { - nedges++; - if (e->probability != 0) - break; - } - if (!e) - for (e = bb->succ; e; e = e->succ_next) - e->probability = (REG_BR_PROB_BASE + nedges / 2) / nedges; - } - } + remove_fake_edges (); estimate_bb_frequencies (loops_info); free_dominance_info (CDI_POST_DOMINATORS); if (profile_status == PROFILE_ABSENT) |