1  /* { dg-do compile } */
       2  /* { dg-options "-O -fdump-tree-ccp1" } */
       3  
       4  int foo (int x)
       5  {
       6    int y = 0;
       7    int z = x + 1;
       8    return z + y;
       9  }
      10  
      11  /* { dg-final { scan-tree-dump-times "\\+" 1 "ccp1" } } */