gcc/testsuite/gcc.c-torture/execute/20050119-2.c

   1 /* PR middle-end/19874 */
   2 typedef enum { A, B, C, D } E;
   3
   4 struct S {
   5   E __attribute__ ((mode (__byte__))) a;
   6   E __attribute__ ((mode (__byte__))) b;
   7   E __attribute__ ((mode (__byte__))) c;
   8   E __attribute__ ((mode (__byte__))) d;
   9 };
  10
  11 extern void abort (void);
  12 extern void exit (int);
  13
  14 E
  15 foo (struct S *s)
  16 {
  17   if (s->a != s->b)
  18     abort ();
  19   if (s->c != C)
  20     abort ();
  21   return s->d;
  22 }
  23
  24 int
  25 main (void)
  26 {
  27   struct S s[2];
  28   s[0].a = B;
  29   s[0].b = B;
  30   s[0].c = C;
  31   s[0].d = D;
  32   s[1].a = D;
  33   s[1].b = C;
  34   s[1].c = B;
  35   s[1].d = A;
  36   if (foo (s) != D)
  37     abort ();
  38   exit (0);
  39 }
  40