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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. | |
4 | // | |
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. | |
10 | ||
ea8adc8c | 11 | // compile-flags: -Z identify_regions -Z span_free_formats -Z emit-end-regions |
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12 | // ignore-tidy-linelength |
13 | ||
14 | // Regression test for #43457: an `EndRegion` was missing from output | |
15 | // because compiler was using a faulty means for region map lookup. | |
16 | ||
17 | use std::cell::RefCell; | |
18 | ||
19 | fn rc_refcell_test(r: RefCell<i32>) { | |
20 | r.borrow_mut(); | |
21 | } | |
22 | ||
23 | fn main() { } | |
24 | ||
25 | // END RUST SOURCE | |
abe05a73 | 26 | // START rustc.rc_refcell_test.SimplifyCfg-qualify-consts.after.mir |
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27 | // |
28 | // fn rc_refcell_test(_1: std::cell::RefCell<i32>) -> () { | |
29 | // let mut _0: (); | |
30 | // scope 1 { | |
31 | // let _2: std::cell::RefCell<i32>; | |
32 | // } | |
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33 | // let mut _3: std::cell::RefMut<'17ds, i32>; |
34 | // let mut _4: &'17ds std::cell::RefCell<i32>; | |
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35 | // |
36 | // bb0: { | |
37 | // StorageLive(_2); | |
38 | // _2 = _1; | |
39 | // StorageLive(_4); | |
ea8adc8c | 40 | // _4 = &'17ds _2; |
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41 | // _3 = const <std::cell::RefCell<T>>::borrow_mut(_4) -> bb1; |
42 | // } | |
43 | // | |
44 | // bb1: { | |
45 | // drop(_3) -> bb2; | |
46 | // } | |
47 | // | |
48 | // bb2: { | |
49 | // StorageDead(_4); | |
ea8adc8c | 50 | // EndRegion('17ds); |
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51 | // _0 = (); |
52 | // StorageDead(_2); | |
53 | // return; | |
54 | // } | |
55 | // } |