1 /* { dg-do compile } */
2 /* { dg-options "-O3 -fdump-tree-cunroll-blocks-details" } */
3 struct a {int a[100];};
4 void
t(struct a * a)5 t(struct a *a)
6 {
7 for (int i=0;i<5 && a->a[i];i++)
8 a->a[i]++;
9 }
10 /* { dg-final { scan-tree-dump-times "loop with 4 iterations completely unrolled" 1 "cunroll" } } */
11 /* { dg-final { scan-tree-dump-not "Invalid sum" "cunroll" } } */
12 /* { dg-final { scan-tree-dump-times "Loop 1 iterates 4 times" 1 "cunroll" } } */
13 /* { dg-final { scan-tree-dump-times "Last iteration exit edge was proved true" 1 "cunroll" } } */
14 /* { dg-final { scan-tree-dump-times "Exit condition of peeled iterations was eliminated" 1 "cunroll" } } */
15