From: Thomas Rodgers <rodg...@twrodgers.com>
Remove UB in atomic_ref/wait_notify test.
Signed-off-by: Thomas Rodgers <trodg...@redhat.com>
libstdc++-v3/ChangeLog:
PR libstdc++/101761
* testsuite/29_atomics/atomic_ref/wait_notify.cc (test): Use
va and vb as arguments to wait/notify, remove unused bb local.
Tested x86_64-pc-linux-gnu, committed to master.
Ok to backport to releases/gcc-11?
---
.../testsuite/29_atomics/atomic_ref/wait_notify.cc | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)
diff --git a/libstdc++-v3/testsuite/29_atomics/atomic_ref/wait_notify.cc
b/libstdc++-v3/testsuite/29_atomics/atomic_ref/wait_notify.cc
index b75e27617f7..b41d1ac0bb7 100644
--- a/libstdc++-v3/testsuite/29_atomics/atomic_ref/wait_notify.cc
+++ b/libstdc++-v3/testsuite/29_atomics/atomic_ref/wait_notify.cc
@@ -33,15 +33,14 @@ template<typename S>
if constexpr (std::atomic_ref<S>::is_always_lock_free)
{
S aa{ va };
- S bb{ vb };
std::atomic_ref<S> a{ aa };
- a.wait(bb);
+ a.wait(vb);
std::thread t([&]
{
- a.store(bb);
+ a.store(vb);
a.notify_one();
});
- a.wait(aa);
+ a.wait(va);
t.join();
}
}
--
2.31.1
