1  /* { dg-do compile } */
       2  /* { dg-options "-O -fdump-tree-original" } */
       3  
       4  unsigned f(unsigned x, unsigned y){
       5    return (x | y) & ~x;
       6  }
       7  unsigned g(unsigned x, unsigned y){
       8    return ~x & (y | x);
       9  }
      10  
      11  /* { dg-final { scan-tree-dump-times "return ~x & y;" 2 "original" } } */