1  /* { dg-do compile } */
       2  /* { dg-options "-O2 -fdump-tree-vrp1" } */
       3  
       4  unsigned f(unsigned i){
       5    i >>= __SIZEOF_INT__ * __CHAR_BIT__ - 1;
       6    return i == 0;
       7  }
       8  
       9  /* { dg-final { scan-tree-dump-not "\\(unsigned int\\)" "vrp1" } } */