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