1 // Copyright 2012 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.
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.
12 #![allow(unknown_features)]
13 #![feature(box_syntax)]
14 #![feature(intrinsics)]
17 extern "rust-intrinsic" {
18 pub fn atomic_cxchg<T>(dst: *mut T, old: T, src: T) -> T;
19 pub fn atomic_cxchg_acq<T>(dst: *mut T, old: T, src: T) -> T;
20 pub fn atomic_cxchg_rel<T>(dst: *mut T, old: T, src: T) -> T;
22 pub fn atomic_load<T>(src: *const T) -> T;
23 pub fn atomic_load_acq<T>(src: *const T) -> T;
25 pub fn atomic_store<T>(dst: *mut T, val: T);
26 pub fn atomic_store_rel<T>(dst: *mut T, val: T);
28 pub fn atomic_xchg<T>(dst: *mut T, src: T) -> T;
29 pub fn atomic_xchg_acq<T>(dst: *mut T, src: T) -> T;
30 pub fn atomic_xchg_rel<T>(dst: *mut T, src: T) -> T;
32 pub fn atomic_xadd<T>(dst: *mut T, src: T) -> T;
33 pub fn atomic_xadd_acq<T>(dst: *mut T, src: T) -> T;
34 pub fn atomic_xadd_rel<T>(dst: *mut T, src: T) -> T;
36 pub fn atomic_xsub<T>(dst: *mut T, src: T) -> T;
37 pub fn atomic_xsub_acq<T>(dst: *mut T, src: T) -> T;
38 pub fn atomic_xsub_rel<T>(dst: *mut T, src: T) -> T;
44 let mut x: Box<_> = box 1;
46 assert_eq!(rusti::atomic_load(&*x), 1);
48 assert_eq!(rusti::atomic_load_acq(&*x), 5);
50 rusti::atomic_store(&mut *x,3);
52 rusti::atomic_store_rel(&mut *x,1);
55 assert_eq!(rusti::atomic_cxchg(&mut *x, 1, 2), 1);
58 assert_eq!(rusti::atomic_cxchg_acq(&mut *x, 1, 3), 2);
61 assert_eq!(rusti::atomic_cxchg_rel(&mut *x, 2, 1), 2);
64 assert_eq!(rusti::atomic_xchg(&mut *x, 0), 1);
67 assert_eq!(rusti::atomic_xchg_acq(&mut *x, 1), 0);
70 assert_eq!(rusti::atomic_xchg_rel(&mut *x, 0), 1);
73 assert_eq!(rusti::atomic_xadd(&mut *x, 1), 0);
74 assert_eq!(rusti::atomic_xadd_acq(&mut *x, 1), 1);
75 assert_eq!(rusti::atomic_xadd_rel(&mut *x, 1), 2);
78 assert_eq!(rusti::atomic_xsub(&mut *x, 1), 3);
79 assert_eq!(rusti::atomic_xsub_acq(&mut *x, 1), 2);
80 assert_eq!(rusti::atomic_xsub_rel(&mut *x, 1), 1);