1  /* { dg-do compile } */
       2  /* { dg-additional-options "-ftree-vectorize" } */
       3  
       4  unsigned long a, c;
       5  int *b, *b2;
       6  long d;
       7  
       8  void fn1()
       9  {
      10    for (; b < b2; b++)
      11      d += *b * c;
      12    d *= a;
      13  }