blob: 359ed07a9c0953466257eb38bfef40fd4818f624 [file] [log] [blame]
// 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 -Z emit-end-regions
// ignore-tidy-linelength
// Unwinding should EndRegion for in-scope borrows: Direct borrows.
fn main() {
let d = D(0);
let a = 0;
let b = &a;
foo(*b);
let c = &a;
}
struct D(i32);
impl Drop for D { fn drop(&mut self) { println!("dropping D({})", self.0); } }
fn foo(i: i32) {
if i > 0 { panic!("im positive"); }
}
// END RUST SOURCE
// START rustc.main.SimplifyCfg-qualify-consts.after.mir
// let mut _0: ();
// ...
// let _6: &'31_4rs i32;
// ...
// let _3: &'31_2rs i32;
// ...
// let _2: i32;
// ...
// let _1: D;
// ...
// let mut _4: ();
// let mut _5: i32;
// bb0: {
// StorageLive(_1);
// _1 = D::{{constructor}}(const 0i32,);
// FakeRead(ForLet, _1);
// StorageLive(_2);
// _2 = const 0i32;
// FakeRead(ForLet, _2);
// StorageLive(_3);
// _3 = &'31_2rs _2;
// FakeRead(ForLet, _3);
// StorageLive(_5);
// _5 = (*_3);
// _4 = const foo(move _5) -> [return: bb2, unwind: bb3];
// }
// bb1: {
// resume;
// }
// bb2: {
// StorageDead(_5);
// StorageLive(_6);
// _6 = &'31_4rs _2;
// FakeRead(ForLet, _6);
// _0 = ();
// EndRegion('31_4rs);
// StorageDead(_6);
// EndRegion('31_2rs);
// StorageDead(_3);
// StorageDead(_2);
// drop(_1) -> [return: bb4, unwind: bb1];
// }
// bb3: {
// EndRegion('31_2rs);
// drop(_1) -> bb1;
// }
// bb4: {
// StorageDead(_1);
// return;
// }
// END rustc.main.SimplifyCfg-qualify-consts.after.mir