1 /* { dg-do run } */
2 /* { dg-options "-O3 -ftree-loop-distribution -fdump-tree-ldist-details" } */
3
4 extern void abort (void);
5
6 int a[130], b[128], c[128];
7
8 int __attribute__((noinline,noclone))
foo(int len,int x)9 foo (int len, int x)
10 {
11 int i;
12 for (i = 1; i <= len; ++i)
13 {
14 a[i] = a[i + 2] + 1;
15 b[i] = 0;
16 a[i + 1] = a[i] - 3;
17 if (i < x)
18 c[i] = a[i];
19 }
20 return i;
21 }
22
main()23 int main()
24 {
25 int i;
26 for (i = 0; i < 130; ++i)
27 a[i] = i;
28 foo (127, 67);
29 if (a[0] != 0 || a[1] != 4 || a[127] != 130)
30 abort ();
31 return 0;
32 }
33
34 /* { dg-final { scan-tree-dump "distributed: split to 2 loops and 0 library calls" "ldist" } } */
35 /* { dg-final { scan-tree-dump "distributed: split to 1 loops and 1 library calls" "ldist" } } */
36 /* { dg-final { scan-tree-dump "generated memset zero" "ldist" } } */
37