1  /* { dg-do compile } */
       2  /* { dg-options "-O -fdump-tree-cddce1" } */
       3  
       4  int
       5  fn1 (_Bool a)
       6  {
       7    return ((int) a) | ((int) ~a);
       8  }
       9  
      10  int
      11  fn2 (unsigned char a)
      12  {
      13    return ((int) a) | ((int) ~a);
      14  }
      15  
      16  int
      17  fn3 (unsigned short a)
      18  {
      19    return ((int) a) | ((int) ~a);
      20  }
      21  
      22  int
      23  fn4 (signed char a)
      24  {
      25    return ((int) a) | ((int) ~a);
      26  }
      27  
      28  int
      29  fn5 (signed short a)
      30  {
      31    return ((int) a) | ((int) ~a);
      32  }
      33  
      34  /* { dg-final { scan-tree-dump-not "~" "cddce1" } } */
      35  /* { dg-final { scan-tree-dump-not " \\| " "cddce1" } } */