1  /* { dg-do compile } */
       2  /* { dg-options "-O2 -fno-ipa-icf -fdump-tree-optimized" } */
       3  
       4  int f(int y, int x)
       5  {
       6    return x & ((~x) | y);
       7  }
       8  int f1(int y, int x)
       9  {
      10    return x & (y | (~x));
      11  }
      12  int f2(int y, int x)
      13  {
      14    return ((~x) | y) & x;
      15  }
      16  int f3(int y, int x)
      17  {
      18    return (y | (~x)) & x;
      19  }
      20  
      21  
      22  /* { dg-final { scan-tree-dump-times "~x" 0 "optimized" } } */
      23  /* { dg-final { scan-tree-dump-times "x_..D. \& y_..D." 4 "optimized" } } */