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| author | Martin Liska <mliska@suse.cz> | 2014-10-24 08:06:20 +0200 |
|---|---|---|
| committer | Uros Bizjak <uros@gcc.gnu.org> | 2014-10-24 08:06:20 +0200 |
| commit | f1c859ee84ad2d44fa9fc1867b183c47ee1d0489 (patch) | |
| tree | 4cf7eb2f0d17605bcd0fb6112e7ab3a42ea7f915 /gcc | |
| parent | 5eda5bad3c455d499b6a3611b433f2945caa239d (diff) | |
| download | gcc-f1c859ee84ad2d44fa9fc1867b183c47ee1d0489.zip gcc-f1c859ee84ad2d44fa9fc1867b183c47ee1d0489.tar.gz gcc-f1c859ee84ad2d44fa9fc1867b183c47ee1d0489.tar.bz2 | |
ipa-icf.c (sem_item_optimizer::parse_nonsingleton_classes): Guard division by zero in dumps.
* ipa-icf.c (sem_item_optimizer::parse_nonsingleton_classes): Guard
division by zero in dumps.
(sem_item_optimizer::merge_classes): Ditto.
From-SVN: r216612
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/ipa-icf.c | 11 |
2 files changed, 12 insertions, 5 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 4187dd9..cefe8ff 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2014-10-24 Martin Liska <mliska@suse.cz> + + * ipa-icf.c (sem_item_optimizer::parse_nonsingleton_classes): Guard + division by zero in dumps. + (sem_item_optimizer::merge_classes): Ditto. + 2014-10-23 John David Anglin <danglin@gcc.gnu.org> * config/pa/pa.c (pa_can_combine_p): Fix typo in last change. diff --git a/gcc/ipa-icf.c b/gcc/ipa-icf.c index d1238a4..e8c32c7 100644 --- a/gcc/ipa-icf.c +++ b/gcc/ipa-icf.c @@ -1736,7 +1736,7 @@ sem_item_optimizer::parse_nonsingleton_classes (void) if (dump_file) fprintf (dump_file, "Init called for %u items (%.2f%%).\n", init_called_count, - 100.0f * init_called_count / m_items.length ()); + m_items.length () ? 100.0f * init_called_count / m_items.length (): 0.0f); } /* Equality function for semantic items is used to subdivide existing @@ -2196,14 +2196,15 @@ sem_item_optimizer::merge_classes (unsigned int prev_class_count) fprintf (dump_file, "Congruent classes before: %u, after: %u\n", prev_class_count, class_count); fprintf (dump_file, "Average class size before: %.2f, after: %.2f\n", - 1.0f * item_count / prev_class_count, - 1.0f * item_count / class_count); + prev_class_count ? 1.0f * item_count / prev_class_count : 0.0f, + class_count ? 1.0f * item_count / class_count : 0.0f); fprintf (dump_file, "Average non-singular class size: %.2f, count: %u\n", - 1.0f * non_singular_classes_sum / non_singular_classes_count, + non_singular_classes_count ? 1.0f * non_singular_classes_sum / + non_singular_classes_count : 0.0f, non_singular_classes_count); fprintf (dump_file, "Equal symbols: %u\n", equal_items); fprintf (dump_file, "Fraction of visited symbols: %.2f%%\n\n", - 100.0f * equal_items / item_count); + item_count ? 100.0f * equal_items / item_count : 0.0f); } for (hash_table<congruence_class_group_hash>::iterator it = m_classes.begin (); |