tests/ui/regions/regions-addr-of-ret.rs - toolchain/rustc - Git at Google

 //@ run-pass
 fn f(x: &isize) -> &isize {
     return &*x;
 }

 pub fn main() {
     let three = &3;
     println!("{}", *f(three));
 }
	//@ run-pass
	fn f(x: &isize) -> &isize {
	return &*x;
	}

	pub fn main() {
	let three = &3;
	println!("{}", *f(three));
	}