69c3830c44
See #49775 for some more information but it looks like this is working around an LLVM bug for the time being. Closes #49775
113 lines
3.2 KiB
Rust
113 lines
3.2 KiB
Rust
// Copyright 2014 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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use core::sync::atomic::*;
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use core::sync::atomic::Ordering::SeqCst;
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#[test]
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fn bool_() {
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let a = AtomicBool::new(false);
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assert_eq!(a.compare_and_swap(false, true, SeqCst), false);
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assert_eq!(a.compare_and_swap(false, true, SeqCst), true);
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a.store(false, SeqCst);
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assert_eq!(a.compare_and_swap(false, true, SeqCst), false);
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}
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#[test]
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fn bool_and() {
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let a = AtomicBool::new(true);
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assert_eq!(a.fetch_and(false, SeqCst), true);
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assert_eq!(a.load(SeqCst),false);
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}
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#[test]
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fn bool_nand() {
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let a = AtomicBool::new(false);
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assert_eq!(a.fetch_nand(false, SeqCst), false);
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assert_eq!(a.load(SeqCst), true);
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assert_eq!(a.fetch_nand(false, SeqCst), true);
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assert_eq!(a.load(SeqCst), true);
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assert_eq!(a.fetch_nand(true, SeqCst), true);
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assert_eq!(a.load(SeqCst), false);
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assert_eq!(a.fetch_nand(true, SeqCst), false);
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assert_eq!(a.load(SeqCst), true);
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}
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#[test]
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fn uint_and() {
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let x = AtomicUsize::new(0xf731);
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assert_eq!(x.fetch_and(0x137f, SeqCst), 0xf731);
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assert_eq!(x.load(SeqCst), 0xf731 & 0x137f);
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}
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#[test]
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fn uint_nand() {
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let x = AtomicUsize::new(0xf731);
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assert_eq!(x.fetch_nand(0x137f, SeqCst), 0xf731);
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assert_eq!(x.load(SeqCst), !(0xf731 & 0x137f));
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}
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#[test]
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fn uint_or() {
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let x = AtomicUsize::new(0xf731);
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assert_eq!(x.fetch_or(0x137f, SeqCst), 0xf731);
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assert_eq!(x.load(SeqCst), 0xf731 | 0x137f);
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}
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#[test]
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fn uint_xor() {
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let x = AtomicUsize::new(0xf731);
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assert_eq!(x.fetch_xor(0x137f, SeqCst), 0xf731);
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assert_eq!(x.load(SeqCst), 0xf731 ^ 0x137f);
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}
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#[test]
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fn int_and() {
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let x = AtomicIsize::new(0xf731);
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assert_eq!(x.fetch_and(0x137f, SeqCst), 0xf731);
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assert_eq!(x.load(SeqCst), 0xf731 & 0x137f);
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}
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#[test]
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fn int_nand() {
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let x = AtomicIsize::new(0xf731);
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assert_eq!(x.fetch_nand(0x137f, SeqCst), 0xf731);
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assert_eq!(x.load(SeqCst), !(0xf731 & 0x137f));
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}
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#[test]
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fn int_or() {
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let x = AtomicIsize::new(0xf731);
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assert_eq!(x.fetch_or(0x137f, SeqCst), 0xf731);
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assert_eq!(x.load(SeqCst), 0xf731 | 0x137f);
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}
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#[test]
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fn int_xor() {
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let x = AtomicIsize::new(0xf731);
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assert_eq!(x.fetch_xor(0x137f, SeqCst), 0xf731);
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assert_eq!(x.load(SeqCst), 0xf731 ^ 0x137f);
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}
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static S_FALSE: AtomicBool = AtomicBool::new(false);
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static S_TRUE: AtomicBool = AtomicBool::new(true);
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static S_INT: AtomicIsize = AtomicIsize::new(0);
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static S_UINT: AtomicUsize = AtomicUsize::new(0);
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#[test]
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fn static_init() {
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// Note that we're not really testing the mutability here but it's important
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// on Android at the moment (#49775)
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assert!(!S_FALSE.swap(true, SeqCst));
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assert!(S_TRUE.swap(false, SeqCst));
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assert!(S_INT.fetch_add(1, SeqCst) == 0);
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assert!(S_UINT.fetch_add(1, SeqCst) == 0);
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}
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