gcc/testsuite/gcc.dg/torture/pr80163.c

   1 /* PR c/80163 */
   2 /* { dg-do compile { target int128 } } */
   3 /* { dg-require-effective-target label_values } */
   4
   5 volatile int v;
   6
   7 __attribute__((noinline, noclone)) void
   8 bar (void)
   9 {
  10   v++;
  11   asm volatile ("" : : : "memory");
  12 }
  13
  14 __attribute__((noinline, noclone)) __int128_t *
  15 foo (unsigned long **p)
  16 {
  17 a:
  18   bar ();
  19 b:
  20   bar ();
  21   static __int128_t d = (unsigned long) &&a - (unsigned long) &&b;
  22   static unsigned long e = (unsigned long) &&a - (unsigned long) &&b;
  23   *p = &e;
  24   return &d;
  25 }
  26
  27 int
  28 main ()
  29 {
  30   __int128_t *p;
  31   unsigned long *q;
  32   p = foo (&q);
  33   if (*p != *q)
  34     __builtin_abort ();
  35   return 0;
  36 }