gcc/testsuite/gcc.dg/plugin/must-tail-call-1.c

   1 extern void abort (void);
   2
   3 int __attribute__((noinline,noclone))
   4 callee (int i)
   5 {
   6   return i * i;
   7 }
   8
   9 int __attribute__((noinline,noclone))
  10 caller (int i)
  11 {
  12   return callee (i + 1);
  13 }
  14
  15 int
  16 main (int argc, const char **argv)
  17 {
  18   int result = caller (5);
  19   if (result != 36)
  20     abort ();
  21   return 0;
  22 }