gcc/testsuite/gcc.c-torture/execute/20030120-1.c

   1 /* On H8/300 port, NOTICE_UPDATE_CC had a bug that causes the final
   2    pass to remove test insns that should be kept.  */
   3
   4 void abort (void);
   5 void exit (int);
   6
   7 unsigned short
   8 test1 (unsigned short w)
   9 {
  10   if ((w & 0xff00) == 0)
  11     {
  12       if (w == 0)
  13         w = 2;
  14     }
  15   return w;
  16 }
  17
  18 unsigned long
  19 test2 (unsigned long w)
  20 {
  21   if ((w & 0xffff0000) == 0)
  22     {
  23       if (w == 0)
  24         w = 2;
  25     }
  26   return w;
  27 }
  28
  29 int
  30 test3 (unsigned short a)
  31 {
  32   if (a & 1)
  33     return 1;
  34   else if (a)
  35     return 1;
  36   else
  37     return 0;
  38 }
  39
  40 int
  41 main ()
  42 {
  43   if (test1 (1) != 1)
  44     abort ();
  45
  46   if (test2 (1) != 1)
  47     abort ();
  48
  49   if (test3 (2) != 1)
  50     abort ();
  51
  52   exit (0);
  53 }