gnu/dist/gcc4/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 unsigned short
   5 test1 (unsigned short w)
   6 {
   7   if ((w & 0xff00) == 0)
   8     {
   9       if (w == 0)
  10         w = 2;
  11     }
  12   return w;
  13 }
  14
  15 unsigned long
  16 test2 (unsigned long w)
  17 {
  18   if ((w & 0xffff0000) == 0)
  19     {
  20       if (w == 0)
  21         w = 2;
  22     }
  23   return w;
  24 }
  25
  26 int
  27 test3 (unsigned short a)
  28 {
  29   if (a & 1)
  30     return 1;
  31   else if (a)
  32     return 1;
  33   else
  34     return 0;
  35 }
  36
  37 int
  38 main ()
  39 {
  40   if (test1 (1) != 1)
  41     abort ();
  42
  43   if (test2 (1) != 1)
  44     abort ();
  45
  46   if (test3 (2) != 1)
  47     abort ();
  48
  49   exit (0);
  50 }