1  /*
       2  { dg-do run }
       3  { dg-options "-O2" }
       4  */
       5  
       6  extern void abort (void);
       7  
       8  enum Status
       9  {
      10    P_ON_LOWER = -4,
      11    P_ON_UPPER = -2,
      12    P_FREE = -1
      13  };
      14  
      15  void
      16  foo (enum Status *stat, double newUpper, double lower, double max)
      17  {
      18    if (newUpper >= max)
      19      *stat = P_FREE;
      20    else if (newUpper == lower)
      21      *stat = P_ON_LOWER;
      22  }
      23  
      24  int
      25  main ()
      26  {
      27    enum Status stat = P_ON_UPPER;
      28  
      29    foo (&stat, 5.0, -10.0, 10.0);
      30  
      31    if (stat != P_ON_UPPER)
      32      abort ();
      33    return 0;
      34  }