gcc/testsuite/gcc.c-torture/execute/pr70460.c

   1 /* { dg-require-effective-target indirect_jumps } */
   2 /* { dg-require-effective-target label_values } */
   3 /* { dg-skip-if "label differences not supported" { avr-*-* } } */
   4
   5 /* PR rtl-optimization/70460 */
   6
   7 int c;
   8
   9 __attribute__((noinline, noclone)) void
  10 foo (int x)
  11 {
  12   static int b[] = { &&lab1 - &&lab0, &&lab2 - &&lab0 };
  13   void *a = &&lab0 + b[x];
  14   goto *a;
  15 lab1:
  16   c += 2;
  17 lab2:
  18   c++;
  19 lab0:
  20   ;
  21 }
  22
  23 int
  24 main ()
  25 {
  26   foo (0);
  27   if (c != 3)
  28     __builtin_abort ();
  29   foo (1);
  30   if (c != 4)
  31     __builtin_abort ();
  32   return 0;
  33 }