/* { dg-do compile } */ /* { dg-options "-O2 -ftree-loop-distribution -ftree-loop-distribute-patterns -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 1 loops and 1 library calls" 1 "ldist" } } */ /* { dg-final { scan-tree-dump-times "generated memset zero" 1 "ldist" } } */ /* { dg-final { cleanup-tree-dump "ldist" } } */