| // Copyright 2017 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. |
| |
| // check that we don't StorageDead booleans before they are used |
| |
| fn main() { |
| let mut should_break = false; |
| loop { |
| if should_break { |
| break; |
| } |
| should_break = true; |
| } |
| } |
| |
| // END RUST SOURCE |
| // START rustc.main.SimplifyCfg-initial.after.mir |
| // bb0: { |
| // StorageLive(_1); |
| // _1 = const false; |
| // FakeRead(ForLet, _1); |
| // goto -> bb2; |
| // } |
| // bb1: { |
| // resume; |
| // } |
| // bb2: { |
| // falseUnwind -> [real: bb3, cleanup: bb1]; |
| // } |
| // bb3: { |
| // StorageLive(_4); |
| // _4 = _1; |
| // switchInt(move _4) -> [false: bb5, otherwise: bb4]; |
| // } |
| // bb4: { |
| // _0 = (); |
| // StorageDead(_4); |
| // StorageDead(_1); |
| // return; |
| // } |
| // bb5: { |
| // _3 = (); |
| // StorageDead(_4); |
| // _1 = const true; |
| // _2 = (); |
| // goto -> bb2; |
| // } |
| // END rustc.main.SimplifyCfg-initial.after.mir |
