1  /* PR tree-optimization/49352 */
       2  /* { dg-do compile } */
       3  /* { dg-additional-options "-O2 -fcompare-debug" } */
       4  
       5  int
       6  foo (int *x, int *y, int n)
       7  {
       8    int i, j;
       9    int dot = 0;
      10    for (i = 0; i < n; i++)
      11      for (j = 0; j < 2; j++)
      12        dot += *(x++) * *(y++);
      13    return dot;
      14  }