mirror of
https://github.com/rust-lang/rust.git
synced 2025-10-31 13:04:42 +00:00
84ac80f192
The previous commit updated `rustfmt.toml` appropriately. This commit is the outcome of running `x fmt --all` with the new formatting options.
85 lines
4.1 KiB
Rust
85 lines
4.1 KiB
Rust
// Code generation of atomic operations.
|
|
//@ compile-flags: -O
|
|
#![crate_type = "lib"]
|
|
|
|
use std::sync::atomic::AtomicI32;
|
|
use std::sync::atomic::Ordering::*;
|
|
|
|
// CHECK-LABEL: @compare_exchange
|
|
#[no_mangle]
|
|
pub fn compare_exchange(a: &AtomicI32) {
|
|
// CHECK: cmpxchg ptr %{{.*}}, i32 0, i32 10 monotonic monotonic
|
|
// CHECK: cmpxchg ptr %{{.*}}, i32 0, i32 11 monotonic acquire
|
|
// CHECK: cmpxchg ptr %{{.*}}, i32 0, i32 12 monotonic seq_cst
|
|
let _ = a.compare_exchange(0, 10, Relaxed, Relaxed);
|
|
let _ = a.compare_exchange(0, 11, Relaxed, Acquire);
|
|
let _ = a.compare_exchange(0, 12, Relaxed, SeqCst);
|
|
|
|
// CHECK: cmpxchg ptr %{{.*}}, i32 0, i32 20 release monotonic
|
|
// CHECK: cmpxchg ptr %{{.*}}, i32 0, i32 21 release acquire
|
|
// CHECK: cmpxchg ptr %{{.*}}, i32 0, i32 22 release seq_cst
|
|
let _ = a.compare_exchange(0, 20, Release, Relaxed);
|
|
let _ = a.compare_exchange(0, 21, Release, Acquire);
|
|
let _ = a.compare_exchange(0, 22, Release, SeqCst);
|
|
|
|
// CHECK: cmpxchg ptr %{{.*}}, i32 0, i32 30 acquire monotonic
|
|
// CHECK: cmpxchg ptr %{{.*}}, i32 0, i32 31 acquire acquire
|
|
// CHECK: cmpxchg ptr %{{.*}}, i32 0, i32 32 acquire seq_cst
|
|
let _ = a.compare_exchange(0, 30, Acquire, Relaxed);
|
|
let _ = a.compare_exchange(0, 31, Acquire, Acquire);
|
|
let _ = a.compare_exchange(0, 32, Acquire, SeqCst);
|
|
|
|
// CHECK: cmpxchg ptr %{{.*}}, i32 0, i32 40 acq_rel monotonic
|
|
// CHECK: cmpxchg ptr %{{.*}}, i32 0, i32 41 acq_rel acquire
|
|
// CHECK: cmpxchg ptr %{{.*}}, i32 0, i32 42 acq_rel seq_cst
|
|
let _ = a.compare_exchange(0, 40, AcqRel, Relaxed);
|
|
let _ = a.compare_exchange(0, 41, AcqRel, Acquire);
|
|
let _ = a.compare_exchange(0, 42, AcqRel, SeqCst);
|
|
|
|
// CHECK: cmpxchg ptr %{{.*}}, i32 0, i32 50 seq_cst monotonic
|
|
// CHECK: cmpxchg ptr %{{.*}}, i32 0, i32 51 seq_cst acquire
|
|
// CHECK: cmpxchg ptr %{{.*}}, i32 0, i32 52 seq_cst seq_cst
|
|
let _ = a.compare_exchange(0, 50, SeqCst, Relaxed);
|
|
let _ = a.compare_exchange(0, 51, SeqCst, Acquire);
|
|
let _ = a.compare_exchange(0, 52, SeqCst, SeqCst);
|
|
}
|
|
|
|
// CHECK-LABEL: @compare_exchange_weak
|
|
#[no_mangle]
|
|
pub fn compare_exchange_weak(w: &AtomicI32) {
|
|
// CHECK: cmpxchg weak ptr %{{.*}}, i32 1, i32 10 monotonic monotonic
|
|
// CHECK: cmpxchg weak ptr %{{.*}}, i32 1, i32 11 monotonic acquire
|
|
// CHECK: cmpxchg weak ptr %{{.*}}, i32 1, i32 12 monotonic seq_cst
|
|
let _ = w.compare_exchange_weak(1, 10, Relaxed, Relaxed);
|
|
let _ = w.compare_exchange_weak(1, 11, Relaxed, Acquire);
|
|
let _ = w.compare_exchange_weak(1, 12, Relaxed, SeqCst);
|
|
|
|
// CHECK: cmpxchg weak ptr %{{.*}}, i32 1, i32 20 release monotonic
|
|
// CHECK: cmpxchg weak ptr %{{.*}}, i32 1, i32 21 release acquire
|
|
// CHECK: cmpxchg weak ptr %{{.*}}, i32 1, i32 22 release seq_cst
|
|
let _ = w.compare_exchange_weak(1, 20, Release, Relaxed);
|
|
let _ = w.compare_exchange_weak(1, 21, Release, Acquire);
|
|
let _ = w.compare_exchange_weak(1, 22, Release, SeqCst);
|
|
|
|
// CHECK: cmpxchg weak ptr %{{.*}}, i32 1, i32 30 acquire monotonic
|
|
// CHECK: cmpxchg weak ptr %{{.*}}, i32 1, i32 31 acquire acquire
|
|
// CHECK: cmpxchg weak ptr %{{.*}}, i32 1, i32 32 acquire seq_cst
|
|
let _ = w.compare_exchange_weak(1, 30, Acquire, Relaxed);
|
|
let _ = w.compare_exchange_weak(1, 31, Acquire, Acquire);
|
|
let _ = w.compare_exchange_weak(1, 32, Acquire, SeqCst);
|
|
|
|
// CHECK: cmpxchg weak ptr %{{.*}}, i32 1, i32 40 acq_rel monotonic
|
|
// CHECK: cmpxchg weak ptr %{{.*}}, i32 1, i32 41 acq_rel acquire
|
|
// CHECK: cmpxchg weak ptr %{{.*}}, i32 1, i32 42 acq_rel seq_cst
|
|
let _ = w.compare_exchange_weak(1, 40, AcqRel, Relaxed);
|
|
let _ = w.compare_exchange_weak(1, 41, AcqRel, Acquire);
|
|
let _ = w.compare_exchange_weak(1, 42, AcqRel, SeqCst);
|
|
|
|
// CHECK: cmpxchg weak ptr %{{.*}}, i32 1, i32 50 seq_cst monotonic
|
|
// CHECK: cmpxchg weak ptr %{{.*}}, i32 1, i32 51 seq_cst acquire
|
|
// CHECK: cmpxchg weak ptr %{{.*}}, i32 1, i32 52 seq_cst seq_cst
|
|
let _ = w.compare_exchange_weak(1, 50, SeqCst, Relaxed);
|
|
let _ = w.compare_exchange_weak(1, 51, SeqCst, Acquire);
|
|
let _ = w.compare_exchange_weak(1, 52, SeqCst, SeqCst);
|
|
}
|