gcc/testsuite/gcc.c-torture/execute/20011219-1.c

   1 /* This testcase failed on IA-32 at -O and above, because combine attached
   2    a REG_LABEL note to jump instruction already using JUMP_LABEL.  */
   3
   4 extern void abort (void);
   5 extern void exit (int);
   6
   7 enum X { A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q };
   8
   9 void
  10 bar (const char *x, int y, const char *z)
  11 {
  12 }
  13
  14 long
  15 foo (enum X x, const void *y)
  16 {
  17   long a;
  18
  19   switch (x)
  20     {
  21     case K:
  22       a = *(long *)y;
  23       break;
  24     case L:
  25       a = *(long *)y;
  26       break;
  27     case M:
  28       a = *(long *)y;
  29       break;
  30     case N:
  31       a = *(long *)y;
  32       break;
  33     case O:
  34       a = *(long *)y;
  35       break;
  36     default:
  37       bar ("foo", 1, "bar");
  38     }
  39   return a;
  40 }
  41
  42 int
  43 main ()
  44 {
  45   long i = 24;
  46   if (foo (N, &i) != 24)
  47     abort ();
  48   exit (0);
  49 }