1 // Copyright 2017 The Rust Project Developers. See the COPYRIGHT
2 // file at the top-level directory of this distribution and at
3 // http://rust-lang.org/COPYRIGHT.
5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
8 // option. This file may not be copied, modified, or distributed
9 // except according to those terms.
11 // compile-flags: -Z identify_regions -Z span_free_formats -Z emit-end-regions
12 // ignore-tidy-linelength
14 // Regression test for #43457: an `EndRegion` was missing from output
15 // because compiler was using a faulty means for region map lookup.
17 use std::cell::RefCell;
19 fn rc_refcell_test(r: RefCell<i32>) {
26 // START rustc.rc_refcell_test.SimplifyCfg-qualify-consts.after.mir
28 // fn rc_refcell_test(_1: std::cell::RefCell<i32>) -> () {
31 // let _2: std::cell::RefCell<i32>;
33 // let mut _3: std::cell::RefMut<'17ds, i32>;
34 // let mut _4: &'17ds std::cell::RefCell<i32>;
41 // _3 = const <std::cell::RefCell<T>>::borrow_mut(_4) -> bb1;