gcc/testsuite/gcc.dg/autopar/pr47060.c

   1 /* PR tree-optimization/47060 */
   2 /* { dg-do compile } */
   3 /* { dg-options "-O -ffast-math -ftree-parallelize-loops=2 -fno-tree-dce" } */
   4
   5 struct S
   6 {
   7   int n;
   8   float *a;
   9 };
  10
  11 float
  12 foo (struct S *b)
  13 {
  14   float c, d;
  15   int j;
  16   for (j = 0; j < b->n; j++)
  17     d += b->a[j];
  18   for (j = 0; j < b->n; j++)
  19     c += b->a[j];
  20   return d;
  21 }