gcc/testsuite/gcc.dg/tree-prof/pr44777.c

   1 /* PR middle-end/44777 */
   2 /* { dg-require-effective-target label_values } */
   3 /* { dg-require-effective-target trampolines } */
   4 /* { dg-options "-O0" } */
   5 /* { dg-additional-options "-DSTACK_SIZE=[dg-effective-target-value stack_size]" { target { stack_size } } } */
   6
   7 /* A variant of gcc.c-torture/execute/comp-goto-2.c.  */
   8
   9 extern void abort (void);
  10 extern void exit (int);
  11
  12 #ifdef STACK_SIZE
  13 #define DEPTH ((STACK_SIZE) / 512 + 1)
  14 #else
  15 #define DEPTH 1000
  16 #endif
  17
  18 int
  19 x (int a)
  20 {
  21   __label__ xlab;
  22   void y (int a)
  23     {
  24       void *x = &&llab;
  25       if (a==-1)
  26         goto *x;
  27       if (a==0)
  28         goto xlab;
  29     llab:
  30       y (a-1);
  31     }
  32   y (a);
  33  xlab:;
  34   return a;
  35 }
  36
  37 int
  38 main ()
  39 {
  40
  41   if (x (DEPTH) != DEPTH)
  42     abort ();
  43
  44   exit (0);
  45 }