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  }