diff options
Diffstat (limited to 'gcc/predict.cc')
| -rw-r--r-- | gcc/predict.cc | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/gcc/predict.cc b/gcc/predict.cc index ef31c48..872f54d 100644 --- a/gcc/predict.cc +++ b/gcc/predict.cc @@ -961,7 +961,7 @@ set_even_probabilities (basic_block bb, if (unlikely_edges != NULL && unlikely_edges->contains (e)) e->probability = profile_probability::very_unlikely (); else - e->probability = all / scale; + e->probability = (all / scale).guessed (); } else e->probability = profile_probability::never (); @@ -4444,11 +4444,14 @@ rebuild_frequencies (void) bool inconsistency_found = false; bool uninitialized_probablity_found = false; bool uninitialized_count_found = false; + bool feedback_found = false; cfun->cfg->count_max = profile_count::uninitialized (); FOR_BB_BETWEEN (bb, ENTRY_BLOCK_PTR_FOR_FN (cfun), NULL, next_bb) { cfun->cfg->count_max = cfun->cfg->count_max.max (bb->count); + if (bb->count.nonzero_p () && bb->count.quality () >= AFDO) + feedback_found = true; /* Uninitialized count may be result of inlining or an omision in an optimization pass. */ if (!bb->count.initialized_p ()) @@ -4516,8 +4519,7 @@ rebuild_frequencies (void) Propagating from probabilities would make profile look consistent, but because probablities after code duplication may not be representative for a given run, we would only propagate the error further. */ - if (ENTRY_BLOCK_PTR_FOR_FN (cfun)->count.ipa ().nonzero_p () - && !uninitialized_count_found) + if (feedback_found && !uninitialized_count_found) { if (dump_file) fprintf (dump_file, |