gcc/testsuite/gcc.c-torture/compile/builtin_unreachable-1.c - gcc - Git at Google

 void bar (const char *);
 void foo (void)
 {
   bar ("foo");
   __builtin_unreachable ();
 }
	void bar (const char *);
	void foo (void)
	{
	bar ("foo");
	__builtin_unreachable ();
	}