gcc/testsuite/gcc.dg/tree-prof/pr49299-2.c

   1 /* { dg-options "-O2" } */
   2
   3 void (*fn) (void);
   4
   5 volatile int v;
   6
   7 __attribute__((noreturn)) void
   8 fn0 (void)
   9 {
  10   __builtin_exit (0);
  11 }
  12
  13 void
  14 fn1 (void)
  15 {
  16 }
  17
  18 __attribute__((noinline, noclone)) void
  19 setfn (void (*x) (void))
  20 {
  21   fn = x;
  22 }
  23
  24 int
  25 main ()
  26 {
  27   int i;
  28   if (v < 1)
  29     setfn (fn0);
  30   else
  31     setfn (fn1);
  32   fn ();
  33   return 0;
  34 }