1  /* PR debug/48159 */
       2  /* { dg-do compile } */
       3  /* { dg-options "-O3 -fcompare-debug" } */
       4  
       5  void
       6  foo (double x, int y, double *__restrict z, double *__restrict w)
       7  {
       8    while (y--)
       9      *z++ = (*w++ = 0) * x;
      10  }