text: /* { dg-do compile } */
  /* { dg-options "-O2 -fdump-tree-original" } */
  
  int test1(int a, int b)
  {
    return (a & b) | b;
  }
  
  int test2(int c, int d)
  {
    return (c & d) | c;
  }
  
  int test3(int e, int f)
  {
    return e | (e & f);
  }
  
  int test4(int g, int h)
  {
    return g | (h & g);
  }
  
  int test5(int i, int j)
  {
    return (i | j) & j;
  }
  
  int test6(int k, int l)
  {
    return (k | l) & k;
  }
  
  int test7(int m, int n)
  {
    return m & (m | n);
  }
  
  int test8(int o, int p)
  {
    return o & (p | o);
  }
  
  /* { dg-final { scan-tree-dump-times "return b;" 1 "original" } } */
  /* { dg-final { scan-tree-dump-times "return c;" 1 "original" } } */
  /* { dg-final { scan-tree-dump-times "return e;" 1 "original" } } */
  /* { dg-final { scan-tree-dump-times "return g;" 1 "original" } } */
  /* { dg-final { scan-tree-dump-times "return j;" 1 "original" } } */
  /* { dg-final { scan-tree-dump-times "return k;" 1 "original" } } */
  /* { dg-final { scan-tree-dump-times "return m;" 1 "original" } } */
  /* { dg-final { scan-tree-dump-times "return o;" 1 "original" } } */
  /* { dg-final { cleanup-tree-dump "original" } } */
  