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// run-pass
#![feature(intrinsics)]
mod rusti {
extern "rust-intrinsic" {
pub fn atomic_cxchg_seqcst_seqcst<T>(dst: *mut T, old: T, src: T) -> (T, bool);
pub fn atomic_cxchg_acquire_acquire<T>(dst: *mut T, old: T, src: T) -> (T, bool);
pub fn atomic_cxchg_release_relaxed<T>(dst: *mut T, old: T, src: T) -> (T, bool);
pub fn atomic_cxchgweak_seqcst_seqcst<T>(dst: *mut T, old: T, src: T) -> (T, bool);
pub fn atomic_cxchgweak_acquire_acquire<T>(dst: *mut T, old: T, src: T) -> (T, bool);
pub fn atomic_cxchgweak_release_relaxed<T>(dst: *mut T, old: T, src: T) -> (T, bool);
pub fn atomic_load_seqcst<T>(src: *const T) -> T;
pub fn atomic_load_acquire<T>(src: *const T) -> T;
pub fn atomic_store_seqcst<T>(dst: *mut T, val: T);
pub fn atomic_store_release<T>(dst: *mut T, val: T);
pub fn atomic_xchg_seqcst<T>(dst: *mut T, src: T) -> T;
pub fn atomic_xchg_acquire<T>(dst: *mut T, src: T) -> T;
pub fn atomic_xchg_release<T>(dst: *mut T, src: T) -> T;
pub fn atomic_xadd_seqcst<T>(dst: *mut T, src: T) -> T;
pub fn atomic_xadd_acquire<T>(dst: *mut T, src: T) -> T;
pub fn atomic_xadd_release<T>(dst: *mut T, src: T) -> T;
pub fn atomic_xsub_seqcst<T>(dst: *mut T, src: T) -> T;
pub fn atomic_xsub_acquire<T>(dst: *mut T, src: T) -> T;
pub fn atomic_xsub_release<T>(dst: *mut T, src: T) -> T;
}
}
pub fn main() {
unsafe {
let mut x: Box<_> = Box::new(1);
assert_eq!(rusti::atomic_load_seqcst(&*x), 1);
*x = 5;
assert_eq!(rusti::atomic_load_acquire(&*x), 5);
rusti::atomic_store_seqcst(&mut *x,3);
assert_eq!(*x, 3);
rusti::atomic_store_release(&mut *x,1);
assert_eq!(*x, 1);
assert_eq!(rusti::atomic_cxchg_seqcst_seqcst(&mut *x, 1, 2), (1, true));
assert_eq!(*x, 2);
assert_eq!(rusti::atomic_cxchg_acquire_acquire(&mut *x, 1, 3), (2, false));
assert_eq!(*x, 2);
assert_eq!(rusti::atomic_cxchg_release_relaxed(&mut *x, 2, 1), (2, true));
assert_eq!(*x, 1);
assert_eq!(rusti::atomic_xchg_seqcst(&mut *x, 0), 1);
assert_eq!(*x, 0);
assert_eq!(rusti::atomic_xchg_acquire(&mut *x, 1), 0);
assert_eq!(*x, 1);
assert_eq!(rusti::atomic_xchg_release(&mut *x, 0), 1);
assert_eq!(*x, 0);
assert_eq!(rusti::atomic_xadd_seqcst(&mut *x, 1), 0);
assert_eq!(rusti::atomic_xadd_acquire(&mut *x, 1), 1);
assert_eq!(rusti::atomic_xadd_release(&mut *x, 1), 2);
assert_eq!(*x, 3);
assert_eq!(rusti::atomic_xsub_seqcst(&mut *x, 1), 3);
assert_eq!(rusti::atomic_xsub_acquire(&mut *x, 1), 2);
assert_eq!(rusti::atomic_xsub_release(&mut *x, 1), 1);
assert_eq!(*x, 0);
loop {
let res = rusti::atomic_cxchgweak_seqcst_seqcst(&mut *x, 0, 1);
assert_eq!(res.0, 0);
if res.1 {
break;
}
}
assert_eq!(*x, 1);
loop {
let res = rusti::atomic_cxchgweak_acquire_acquire(&mut *x, 1, 2);
assert_eq!(res.0, 1);
if res.1 {
break;
}
}
assert_eq!(*x, 2);
loop {
let res = rusti::atomic_cxchgweak_release_relaxed(&mut *x, 2, 3);
assert_eq!(res.0, 2);
if res.1 {
break;
}
}
assert_eq!(*x, 3);
}
}
|
