diff options
| author | Jan Hubicka <hubicka@ucw.cz> | 2017-07-04 19:05:26 +0200 |
|---|---|---|
| committer | Jan Hubicka <hubicka@gcc.gnu.org> | 2017-07-04 17:05:26 +0000 |
| commit | fd78e43e0d0fac3b7081a2cbaad430c2c411c2e1 (patch) | |
| tree | 6b34853c6e28812d63c41fbaaeeda5cef4c47c77 /gcc/ipa-utils.c | |
| parent | a4187dab5248cb42781fa6b2f57b95214c4f8b03 (diff) | |
ipa-utils.c (ipa_merge_profiles): Fix merging when dst is uninitialized while src is not.
* ipa-utils.c (ipa_merge_profiles): Fix merging when dst is
uninitialized while src is not.
From-SVN: r249973
Diffstat (limited to 'gcc/ipa-utils.c')
| -rw-r--r-- | gcc/ipa-utils.c | 19 |
1 files changed, 15 insertions, 4 deletions
diff --git a/gcc/ipa-utils.c b/gcc/ipa-utils.c index 65eed77c930..708710d6135 100644 --- a/gcc/ipa-utils.c +++ b/gcc/ipa-utils.c @@ -404,14 +404,17 @@ ipa_merge_profiles (struct cgraph_node *dst, /* FIXME when we merge in unknown profile, we ought to set counts as unsafe. */ - if (!dst->count.initialized_p ()) + if (!src->count.initialized_p ()) return; if (symtab->dump_file) { fprintf (symtab->dump_file, "Merging profiles of %s to %s\n", src->dump_name (), dst->dump_name ()); } - dst->count += src->count; + if (dst->count.initialized_p ()) + dst->count += src->count; + else + dst->count = src->count; /* This is ugly. We need to get both function bodies into memory. If declaration is merged, we need to duplicate it to be able @@ -521,12 +524,20 @@ ipa_merge_profiles (struct cgraph_node *dst, unsigned int i; dstbb = BASIC_BLOCK_FOR_FN (dstcfun, srcbb->index); - dstbb->count += srcbb->count; + if (dstbb->count.initialized_p ()) + dstbb->count += srcbb->count; + else + dstbb->count = srcbb->count; for (i = 0; i < EDGE_COUNT (srcbb->succs); i++) { edge srce = EDGE_SUCC (srcbb, i); edge dste = EDGE_SUCC (dstbb, i); - dste->count += srce->count; + if (dstbb->count.initialized_p ()) + dste->count += srce->count; + else + dste->count = srce->count; + if (dstbb->count > 0 && dste->count.initialized_p ()) + dste->probability = dste->count.probability_in (dstbb->count); } } push_cfun (dstcfun); |