66 lines
1.5 KiB
Rust
66 lines
1.5 KiB
Rust
// Copyright 2017 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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// ignore-wasm32-bare compiled with panic=abort by default
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// check that we don't emit multiple drop flags when they are not needed.
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fn main() {
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let x = S.other(S.id());
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}
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// no_mangle to make sure this gets instantiated even in an executable.
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#[no_mangle]
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pub fn test() {
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let u = S;
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let mut v = S;
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drop(v);
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v = u;
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}
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struct S;
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impl Drop for S {
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fn drop(&mut self) {
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}
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}
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impl S {
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fn id(self) -> Self { self }
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fn other(self, s: Self) {}
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}
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// END RUST SOURCE
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// START rustc.main.ElaborateDrops.after.mir
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// let mut _0: ();
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// scope 1 {
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// }
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// scope 2 {
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// let _1: ();
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// }
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// let mut _2: S;
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// let mut _3: S;
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// let mut _4: S;
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// let mut _5: bool;
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// bb0: {
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// END rustc.main.ElaborateDrops.after.mir
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// START rustc.test.ElaborateDrops.after.mir
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// let mut _0: ();
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// ...
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// let mut _2: S;
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// ...
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// let _1: S;
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// ...
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// let mut _3: ();
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// let mut _4: S;
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// let mut _5: S;
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// let mut _6: bool;
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// bb0: {
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// END rustc.test.ElaborateDrops.after.mir
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