From 702f63e427a17081db942ff7f964b682b2e2b663 Mon Sep 17 00:00:00 2001
From: Ralf Jung <post@ralfj.de>
Date: Fri, 2 Aug 2019 20:08:04 +0200
Subject: [PATCH] test AtomicU64

---
 tests/run-pass/atomic.rs | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/tests/run-pass/atomic.rs b/tests/run-pass/atomic.rs
index ed9a9f45349..f0b8ec06b90 100644
--- a/tests/run-pass/atomic.rs
+++ b/tests/run-pass/atomic.rs
@@ -1,8 +1,9 @@
-use std::sync::atomic::{AtomicBool, AtomicIsize, Ordering::*};
+use std::sync::atomic::{AtomicBool, AtomicIsize, AtomicU64, Ordering::*};
 
 fn main() {
     atomic_bool();
     atomic_isize();
+    atomic_u64();
 }
 
 fn atomic_bool() {
@@ -50,3 +51,12 @@ fn atomic_isize() {
     ATOMIC.compare_exchange_weak(0, 1, SeqCst, Acquire).ok();
     ATOMIC.compare_exchange_weak(0, 1, SeqCst, SeqCst).ok();
 }
+
+fn atomic_u64() {
+    static ATOMIC: AtomicU64 = AtomicU64::new(0);
+
+    ATOMIC.store(1, SeqCst);
+    assert_eq!(ATOMIC.compare_exchange(0, 0x100, AcqRel, Acquire), Err(1));
+    assert_eq!(ATOMIC.compare_exchange_weak(1, 0x100, AcqRel, Acquire), Ok(1));
+    assert_eq!(ATOMIC.load(Relaxed), 0x100);
+}
-- 
2.44.0