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[rustc.git] / src / test / compile-fail / asm-out-assign-imm.rs
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1// Copyright 2012-2015 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
11#![feature(asm)]
12
13fn foo(x: isize) { println!("{}", x); }
14
15#[cfg(any(target_arch = "x86",
16 target_arch = "x86_64",
17 target_arch = "arm",
18 target_arch = "aarch64"))]
19pub fn main() {
20 let x: isize;
21 x = 1; //~ NOTE prior assignment occurs here
22 foo(x);
23 unsafe {
c34b1796 24 asm!("mov $1, $0" : "=r"(x) : "r"(5));
85aaf69f 25 //~^ ERROR re-assignment of immutable variable `x`
54a0048b 26 //~| NOTE in this expansion of asm!
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27 }
28 foo(x);
29}
30
31#[cfg(not(any(target_arch = "x86",
32 target_arch = "x86_64",
33 target_arch = "arm",
34 target_arch = "aarch64")))]
35pub fn main() {}