1  /* Copyright (C) 2002 Free Software Foundation.
       2  
       3     Test for composite comparison always true/false optimization.
       4  
       5     Written by Roger Sayle, 7th June 2002.  */
       6  
       7  extern void link_error0 ();
       8  extern void link_error1 ();
       9  
      10  void
      11  test1 (int x, int y)
      12  {
      13    if ((x==y) && (x!=y))
      14      link_error0();
      15  }
      16  
      17  void
      18  test2 (int x, int y)
      19  {
      20    if ((x<y) && (x>y))
      21      link_error0();
      22  }
      23  
      24  void
      25  test3 (int x, int y)
      26  {
      27    if ((x<y) && (y<x))
      28      link_error0();
      29  }
      30  
      31  void 
      32  test4 (int x, int y)
      33  {
      34    if ((x==y) || (x!=y))
      35      {
      36      }
      37    else
      38      link_error1 ();
      39  }
      40  
      41  void
      42  test5 (int x, int y)
      43  {
      44    if ((x>=y) || (x<y))
      45      {
      46      }
      47    else
      48      link_error1 ();
      49  }
      50  
      51  void
      52  test6 (int x, int y)
      53  {
      54    if ((x<=y) || (y<x))
      55      {
      56      }
      57    else
      58      link_error1 ();
      59  }
      60  
      61  void
      62  all_tests (int x, int y)
      63  {
      64    test1 (x, y);
      65    test2 (x, y);
      66    test3 (x, y);
      67    test4 (x, y);
      68    test5 (x, y);
      69    test6 (x, y);
      70  }
      71  
      72  int
      73  main ()
      74  {
      75    all_tests (0, 0);
      76    all_tests (1, 2);
      77    all_tests (4, 3);
      78  
      79    return 0;
      80  }
      81  
      82  #ifndef __OPTIMIZE__
      83  void link_error0() {}
      84  void link_error1() {}
      85  #endif /* ! __OPTIMIZE__ */
      86