1  /* { dg-do compile } */
       2  /* { dg-options "-O2 -fdump-tree-original" } */
       3  
       4  /* x + (x & 1) -> (x + 1) & ~1 */
       5  int
       6  fn1 (int x)
       7  {
       8  	return x + (x & 1);
       9  }
      10  int
      11  fn2 (int x)
      12  {
      13  	return (x & 1) + x;
      14  }
      15  int
      16  fn3 (int x)
      17  {
      18  	return x + (1 & x);
      19  }
      20  int
      21  fn4 (int x)
      22  {
      23  	return (1 & x) + x;
      24  }
      25  unsigned int
      26  fn5 (unsigned int x)
      27  {
      28  	return x + (x & 1);
      29  }
      30  unsigned int
      31  fn6 (unsigned int x)
      32  {
      33  	return (x & 1) + x;
      34  }
      35  unsigned int
      36  fn7 (unsigned int x)
      37  {
      38  	return x + (x % 2);
      39  }
      40  unsigned int
      41  fn8 (unsigned int x)
      42  {
      43  	return (x % 2) + x;
      44  }
      45  unsigned int
      46  fn9 (unsigned int x)
      47  {
      48  	return (1LL & x) + x;
      49  }
      50  
      51  /* { dg-final { scan-tree-dump-times "x \\+ 1" 9 "original" } } */