| // Copyright 2014 The Rust Project Developers. See the COPYRIGHT |
| // file at the top-level directory of this distribution and at |
| // http://rust-lang.org/COPYRIGHT. |
| // |
| // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or |
| // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license |
| // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your |
| // option. This file may not be copied, modified, or distributed |
| // except according to those terms. |
| |
| // Regression test for a bug in #52713: this was an optimization for |
| // computing liveness that wound up accidentally causing the program |
| // below to be accepted. |
| |
| #![feature(nll)] |
| |
| fn foo<'a>(x: &'a mut u32) -> u32 { |
| let mut x = 22; |
| let y = &x; |
| if false { |
| return x; |
| } |
| |
| x += 1; //~ ERROR |
| println!("{}", y); |
| return 0; |
| } |
| |
| fn main() { } |
