1  /* { dg-do compile } */
       2  /* { dg-options "-O2 -fdump-tree-original" } */
       3  
       4  int test1(int a, int b)
       5  {
       6    return ~a == ~b;
       7  }
       8  
       9  int test2(int c, int d)
      10  {
      11    return -c == -d;
      12  }
      13  
      14  int test3(int e)
      15  {
      16    return -e == 5;
      17  }
      18  
      19  int test4(int f)
      20  {
      21    return ~f == 5;
      22  }
      23  
      24  int test5(int g, int h)
      25  {
      26    return ~g < ~h;
      27  }
      28  
      29  int test6(int i, int j)
      30  {
      31    return ~i >= ~j;
      32  }
      33  
      34  int test7(int k)
      35  {
      36    return ~k < 3;
      37  }
      38  
      39  int test8(int l)
      40  {
      41    return ~l >= 2;
      42  }
      43  
      44  /* { dg-final { scan-tree-dump-times "b == a" 1 "original" } } */
      45  /* { dg-final { scan-tree-dump-times "c == d" 1 "original" } } */
      46  /* { dg-final { scan-tree-dump-times "e == -5" 1 "original" } } */
      47  /* { dg-final { scan-tree-dump-times "f == -6" 1 "original" } } */
      48  /* { dg-final { scan-tree-dump-times "h < g" 1 "original" } } */
      49  /* { dg-final { scan-tree-dump-times "j >= i" 1 "original" } } */
      50  /* { dg-final { scan-tree-dump-times "k >= -3" 1 "original" } } */
      51  /* { dg-final { scan-tree-dump-times "l < -2" 1 "original" } } */
      52