gcc/testsuite/gcc.dg/tree-ssa/ldist-13.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -ftree-loop-distribution -fdump-tree-ldist-details" } */
   3
   4 float * __restrict__ x;
   5 float * __restrict__ y;
   6
   7 float foo (int n)
   8 {
   9   int i;
  10   float tmp = 0.0;
  11   for (i = 0; i < n; ++i)
  12     {
  13       x[i] = 0.0;
  14       tmp += y[i];
  15     }
  16   return tmp;
  17 }
  18
  19 /* Distributing the loop doesn't expose more parallelism.  */
  20 /* { dg-final { scan-tree-dump-not "Loop 1 distributed: split to 2 loops" "ldist" } } */