/* { dg-do compile } */ 
/* { dg-options "-O2 -fdump-tree-reassoc1" } */

unsigned int
foo(unsigned int a, unsigned int b, unsigned int c, unsigned int d,
    unsigned int e, unsigned int f, unsigned int g, unsigned int h)
{
  /* Should be transformed into a + c + d + e + g + 15 */
  unsigned int i = (a + 9) + (c + d);
  unsigned int j = (e + 4) + (2 + g);
  e = i + j;
  return e;
}

/* { dg-final { scan-tree-dump-times "\\\+ 15" 1 "reassoc1"} } */
/* { dg-final { cleanup-tree-dump "reassoc1" } } */