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/* { dg-do compile } */
/* { dg-options "-O2 -ftree-loop-distribution -fdump-tree-ldist-all" } */
void foo (int * __restrict__ ia,
int * __restrict__ ib,
int * __restrict__ oxa,
int * __restrict__ oxb,
int * __restrict__ oya,
int * __restrict__ oyb)
{
int i;
long int mya[52];
long int myb[52];
for (i=0; i < 52; i++)
{
mya[i] = ia[i] * oxa[i] + ib[i] * oxb[i];
myb[i] = -ia[i] * oxb[i] + ib[i] * oxa[i];
oya[i] = 0;
oyb[i] = myb[i] >> 10;
}
/* This loop should be distributed, and the result should look like
this:
| memset (oya, 0, 208);
| for (i=0; i < 52; i++)
| oyb[i] = -ia[i] * oxb[i] + ib[i] * oxa[i] >> 10;
*/
}
/* { dg-final { scan-tree-dump-times "distributed: split to 2 loops" 1 "ldist" } } */
/* { dg-final { scan-tree-dump-times "generated memset zero" 1 "ldist" } } */
/* { dg-final { cleanup-tree-dump "ldist" } } */
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