1 /* { dg-do compile } */
2 /* { dg-options "-O3 -Warray-bounds -fdump-tree-cunroll-blocks-details" } */
3 struct a {int a[8];int b;};
4 void
t(struct a * a)5 t(struct a *a)
6 {
7   for (int i=0;a->a[i];i++)
8     a->a[i]++;
9 }
10 /* { dg-final { scan-tree-dump-times "loop with 6 iterations completely unrolled" 1 "cunroll" } } */
11 /* { dg-final { scan-tree-dump-not "Invalid sum" "cunroll" } } */
12