1  /* { dg-do compile } */ 
       2  /* { dg-options "-O2 -fdump-tree-reassoc1" } */
       3  
       4  unsigned int
       5  foo(unsigned int a, unsigned int b, unsigned int c, unsigned int d,
       6      unsigned int e, unsigned int f, unsigned int g, unsigned int h)
       7  {
       8    /* Should be transformed into e = 20 */
       9    unsigned int i = (a + 9);
      10    unsigned int j = (-c + 1);
      11    i += (c + 8);
      12    j += (-a + 2);
      13    e = i + j;
      14    return e;
      15  }
      16  
      17  /* { dg-final { scan-tree-dump-times "= 20" 1 "reassoc1"} } */