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ira-costs.c (cost_classes_hasher::equal): Check equality of memcmp and 0 if no difference exists for HV1 and HV2.

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2013-12-30  Felix Yang  <felix.yang@huawei.com>

	* ira-costs.c (cost_classes_hasher::equal): Check equality of
	memcmp and 0 if no difference exists for HV1 and HV2.

From-SVN: r206246
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Felix Yang 2013-12-30 16:10:14 +00:00 committed by Vladimir Makarov
parent 8e72847528
commit c99ebd4dde
2 changed files with 8 additions and 2 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2013-12-30 Felix Yang <felix.yang@huawei.com>
* ira-costs.c (cost_classes_hasher::equal): Check equality of
memcmp and 0 if no difference exists for HV1 and HV2.
2013-12-30 Jakub Jelinek <jakub@redhat.com>
PR target/59501

5
gcc/ira-costs.c
View File

@ -154,8 +154,9 @@ cost_classes_hasher::hash (const value_type *hv)
inline bool
cost_classes_hasher::equal (const value_type *hv1, const compare_type *hv2)
{
return hv1->num == hv2->num && memcmp (hv1->classes, hv2->classes,
sizeof (enum reg_class) * hv1->num);
return (hv1->num == hv2->num
&& memcmp (hv1->classes, hv2->classes,
sizeof (enum reg_class) * hv1->num) == 0);
}
/* Delete cost classes info V from the hash table. */