1 /* { dg-do compile } */
2 /* { dg-options "-O2 -ftree-loop-distribution -ftree-loop-distribute-patterns -fdump-tree-ldist-all" } */
3
foo(int * __restrict__ ia,int * __restrict__ ib,int * __restrict__ oxa,int * __restrict__ oxb,int * __restrict__ oya,int * __restrict__ oyb)4 void foo (int * __restrict__ ia,
5 int * __restrict__ ib,
6 int * __restrict__ oxa,
7 int * __restrict__ oxb,
8 int * __restrict__ oya,
9 int * __restrict__ oyb)
10 {
11 int i;
12 long int mya[52];
13 long int myb[52];
14
15 for (i=0; i < 52; i++)
16 {
17 mya[i] = ia[i] * oxa[i] + ib[i] * oxb[i];
18 myb[i] = -ia[i] * oxb[i] + ib[i] * oxa[i];
19 oya[i] = 0;
20 oyb[i] = myb[i] >> 10;
21 }
22
23 /* This loop should be distributed, and the result should look like
24 this:
25 | memset (oya, 0, 208);
26 | for (i=0; i < 52; i++)
27 | oyb[i] = -ia[i] * oxb[i] + ib[i] * oxa[i] >> 10;
28 */
29 }
30
31 /* { dg-final { scan-tree-dump-times "distributed: split to 1 loops and 1 library calls" 1 "ldist" } } */
32 /* { dg-final { scan-tree-dump-times "generated memset zero" 1 "ldist" } } */
33