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ira-build.c (sort_conflict_id_map): Don't call qsort if num is 0, as ira_object_id_map might be NULL, or 1.

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* ira-build.c (sort_conflict_id_map): Don't call
	qsort if num is 0, as ira_object_id_map might be NULL, or 1.

From-SVN: r212136
This commit is contained in:
Jakub Jelinek 2014-06-30 09:33:41 +02:00 committed by Jakub Jelinek
parent 51a6916856
commit 85c00e0b91
2 changed files with 8 additions and 2 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2014-06-30 Jakub Jelinek <jakub@redhat.com>
* ira-build.c (sort_conflict_id_map): Don't call
qsort if num is 0, as ira_object_id_map might be NULL, or 1.
2014-06-30 Zhenqiang Chen <zhenqiang.chen@linaro.org>
* loop-invariant.c (get_inv_cost): Handle register class.

5
gcc/ira-build.c
View File

@ -2821,8 +2821,9 @@ sort_conflict_id_map (void)
FOR_EACH_ALLOCNO_OBJECT (a, obj, oi)
ira_object_id_map[num++] = obj;
}
qsort (ira_object_id_map, num, sizeof (ira_object_t),
object_range_compare_func);
if (num > 1)
qsort (ira_object_id_map, num, sizeof (ira_object_t),
object_range_compare_func);
for (i = 0; i < num; i++)
{
ira_object_t obj = ira_object_id_map[i];