blob: debfcc5c552c43189b3beecd5a3b6b65eb4a7ff2 [file] [log] [blame]
// Copyright 2012-2015 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.
// revisions: ast mir
//[mir]compile-flags: -Z borrowck=mir
#![feature(asm)]
#![allow(dead_code)]
use std::cell::Cell;
#[repr(C)]
struct NoisyDrop<'a>(&'a Cell<&'static str>);
impl<'a> Drop for NoisyDrop<'a> {
fn drop(&mut self) {
self.0.set("destroyed");
}
}
#[cfg(any(target_arch = "x86", target_arch = "x86_64"))]
fn main() {
let status = Cell::new("alive");
{
let _y: Box<NoisyDrop>;
let x = Box::new(NoisyDrop(&status));
unsafe {
asm!("mov $1, $0" : "=r"(_y) : "r"(x));
}
assert_eq!(status.get(), "alive");
}
assert_eq!(status.get(), "destroyed");
}
#[cfg(not(any(target_arch = "x86", target_arch = "x86_64")))]
fn main() {}