| // Copyright 2012-2014 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. |
| |
| // ignore-android |
| // ignore-arm |
| // ignore-aarch64 |
| // ignore-s390x |
| // ignore-emscripten |
| // ignore-powerpc |
| // ignore-powerpc64 |
| // ignore-powerpc64le |
| // ignore-sparc |
| // ignore-sparc64 |
| // ignore-mips |
| // ignore-mips64 |
| |
| #![feature(asm, rustc_attrs)] |
| |
| #![allow(dead_code, non_upper_case_globals)] |
| |
| #[cfg(any(target_arch = "x86", |
| target_arch = "x86_64"))] |
| #[rustc_error] |
| pub fn main() { //~ ERROR compilation successful |
| // assignment not dead |
| let mut x: isize = 0; |
| unsafe { |
| // extra colon |
| asm!("mov $1, $0" : "=r"(x) : "r"(5_usize), "0"(x) : : "cc"); |
| //~^ WARNING unrecognized option |
| } |
| assert_eq!(x, 5); |
| |
| unsafe { |
| // comma in place of a colon |
| asm!("add $2, $1; mov $1, $0" : "=r"(x) : "r"(x), "r"(8_usize) : "cc", "volatile"); |
| //~^ WARNING expected a clobber, found an option |
| } |
| assert_eq!(x, 13); |
| } |
