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| author | Jan Hubicka <hubicka@ucw.cz> | 2018-12-15 22:04:29 +0100 |
|---|---|---|
| committer | Jan Hubicka <hubicka@gcc.gnu.org> | 2018-12-15 21:04:29 +0000 |
| commit | 6263c29d28abb099cb835ca373aa234ef36df6a2 (patch) | |
| tree | 046cf9feac7ea499b296b9a9f59fd67d9978675a /gcc/ipa-utils.c | |
| parent | 305f1fb78347a0bdf5d6ddd6ac5dead1c6167ea5 (diff) | |
| download | gcc-6263c29d28abb099cb835ca373aa234ef36df6a2.zip gcc-6263c29d28abb099cb835ca373aa234ef36df6a2.tar.gz gcc-6263c29d28abb099cb835ca373aa234ef36df6a2.tar.bz2 | |
ipa-utils.c (ipa_merge_profiles): Do no merging when source function has zero count.
* ipa-utils.c (ipa_merge_profiles): Do no merging when source function
has zero count.
From-SVN: r267174
Diffstat (limited to 'gcc/ipa-utils.c')
| -rw-r--r-- | gcc/ipa-utils.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/gcc/ipa-utils.c b/gcc/ipa-utils.c index 9985721..3345f9d 100644 --- a/gcc/ipa-utils.c +++ b/gcc/ipa-utils.c @@ -402,6 +402,10 @@ ipa_merge_profiles (struct cgraph_node *dst, if (src->profile_id && !dst->profile_id) dst->profile_id = src->profile_id; + /* Merging zero profile to dst is no-op. */ + if (src->count.ipa () == profile_count::zero ()) + return; + /* FIXME when we merge in unknown profile, we ought to set counts as unsafe. */ if (!src->count.initialized_p () |