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 // ignore-tidy-linelength
12 // compile-flags: -Z verbose -Z mir-emit-validate=1 -Z span_free_formats
14 // Make sure unsafe fns and fns with an unsafe block only get restricted validation.
16 unsafe fn write_42(x: *mut i32) -> bool {
17 let test_closure = |x: *mut i32| *x = 23;
23 fn test(x: &mut i32) {
24 unsafe { write_42(x) };
30 let test_closure = unsafe { |x: &mut i32| write_42(x) };
34 // FIXME: Also test code generated inside the closure, make sure it only does restricted validation
35 // because it is entirely inside an unsafe block. Unfortunately, the interesting lines of code also
36 // contain name of the source file, so we cannot test for it.
39 // START rustc.write_42.EraseRegions.after.mir
40 // fn write_42(_1: *mut i32) -> bool {
43 // Validate(Acquire, [_1: *mut i32]);
44 // Validate(Release, [_1: *mut i32]);
49 // END rustc.write_42.EraseRegions.after.mir
50 // START rustc.write_42-{{closure}}.EraseRegions.after.mir
51 // fn write_42::{{closure}}(_1: &ReErased [closure@NodeId(22)], _2: *mut i32) -> () {
54 // Validate(Acquire, [_1: &ReFree(DefId(0/1:9 ~ validate_4[317d]::write_42[0]::{{closure}}[0]), BrEnv) [closure@NodeId(22)], _2: *mut i32]);
55 // Validate(Release, [_1: &ReFree(DefId(0/1:9 ~ validate_4[317d]::write_42[0]::{{closure}}[0]), BrEnv) [closure@NodeId(22)], _2: *mut i32]);
56 // (*_2) = const 23i32;
61 // END rustc.write_42-{{closure}}.EraseRegions.after.mir
62 // START rustc.test.EraseRegions.after.mir
63 // fn test(_1: &ReErased mut i32) -> () {
66 // Validate(Acquire, [_1: &ReFree(DefId(0/0:4 ~ validate_4[317d]::test[0]), BrAnon(0)) mut i32]);
67 // Validate(Release, [_1: &ReFree(DefId(0/0:4 ~ validate_4[317d]::test[0]), BrAnon(0)) mut i32]);
69 // _2 = const write_42(move _3) -> bb1;
72 // Validate(Acquire, [_2: bool]);
73 // Validate(Release, [_2: bool]);
77 // END rustc.test.EraseRegions.after.mir
78 // START rustc.main-{{closure}}.EraseRegions.after.mir
79 // fn main::{{closure}}(_1: &ReErased [closure@NodeId(60)], _2: &ReErased mut i32) -> bool {
82 // Validate(Acquire, [_1: &ReFree(DefId(0/1:10 ~ validate_4[317d]::main[0]::{{closure}}[0]), BrEnv) [closure@NodeId(60)], _2: &ReFree(DefId(0/1:10 ~ validate_4[317d]::main[0]::{{closure}}[0]), BrAnon(0)) mut i32]);
83 // Validate(Release, [_1: &ReFree(DefId(0/1:10 ~ validate_4[317d]::main[0]::{{closure}}[0]), BrEnv) [closure@NodeId(60)], _2: &ReFree(DefId(0/1:10 ~ validate_4[317d]::main[0]::{{closure}}[0]), BrAnon(0)) mut i32]);
86 // _0 = const write_42(move _3) -> bb1;
90 // END rustc.main-{{closure}}.EraseRegions.after.mir