rust/src/test/mir-opt/end_region_1.rs

// 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.

// compile-flags: -Z identify_regions
// ignore-tidy-linelength

// This is just about the simplest program that exhibits an EndRegion.

fn main() {
    let a = 3;
    let b = &a;
}

// END RUST SOURCE
// START rustc.node4.SimplifyCfg-qualify-consts.after.mir
//     let mut _0: ();
//     let _1: i32;
//     let _2: &'10_1rce i32;
//
//     bb0: {
//         StorageLive(_1);
//         _1 = const 3i32;
//         StorageLive(_2);
//         _2 = &'10_1rce _1;
//         _0 = ();
//         StorageDead(_2);
//         EndRegion('10_1rce);
//         StorageDead(_1);
//         return;
//     }
// END rustc.node4.SimplifyCfg-qualify-consts.after.mir