1  /* PR/71352 */
       2  /* { dg-do compile } */
       3  /* { dg-options "-O -fdump-tree-reassoc1" } */
       4  
       5  unsigned a, b, c, d, e;
       6  
       7  void
       8  fn1 ()
       9  {
      10    unsigned f;
      11    e = f = d * -b + a * -c;
      12  }
      13  
      14  /* Check that we factor -1 and create -(d * b + a * c).  */
      15  /* { dg-final { scan-tree-dump-times " = -" 1 "reassoc1" } } */