text: /* { dg-do compile } */
  /* { dg-options "-fdump-tree-original" } */
  
  int test1 (int a, int b)
  {
    return a - b == a;
  }
  int test2 (int a, int b)
  {
    return a + b == a;
  }
  int test3 (int a)
  {
    return a + 5 == a;
  }
  int test4 (int a)
  {
    return a - 5 == a;
  }
  
  /* { dg-final { scan-tree-dump-times "b == 0" 2 "original" } } */
  /* { dg-final { scan-tree-dump-times "return 0" 2 "original" } } */
  