1 /* { dg-do compile } */
2 /* { dg-options "-O3 -fdisable-tree-evrp -fdisable-tree-cunrolli -fdisable-tree-vrp1 -fdump-tree-cunroll-blocks-details" } */
3
4 #if __SIZEOF_INT__ < 4
5 __extension__ typedef __INT32_TYPE__ i32;
6 #else
7 typedef int i32;
8 #endif
9
10 struct a {int a[8];int b;};
11 void
t(struct a * a)12 t(struct a *a)
13 {
14 for (i32 i=0;i<123456 && a->a[i];i++)
15 a->a[i]++;
16 }
17 /* This pass relies on the fact that we do not eliminate the redundant test for i early.
18 It is necessary to disable all passes that do so. At the moment it is evrp, vrp1 and cunrolli. */
19 /* { dg-final { scan-tree-dump-times "Loop 1 iterates 123454 times" 1 "cunroll" } } */
20 /* { dg-final { scan-tree-dump-times "Last iteration exit edge was proved true" 1 "cunroll" } } */
21 /* { dg-final { scan-tree-dump-times "Exit condition of peeled iterations was eliminated" 1 "cunroll" } } */
22 /* { dg-final { scan-tree-dump-times "loop with 6 iterations completely unrolled" 1 "cunroll" } } */
23 /* { dg-final { scan-tree-dump-not "Invalid sum" "cunroll" } } */
24