[PATCH] libc++ tests: wait_until.pass test sporadically fails (bug 21998)

[Eric Fiselier]

LGTM after the inline comment in answered. Do you need somebody to commit this for you?


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  rL LLVM

================
Comment at: test/std/thread/futures/futures.shared_future/wait_until.pass.cpp:31
@@ +30,3 @@
+{
+    thread_state.store(state, std::memory_order_relaxed);
+}
----------------
Why use a relaxed and not strict memory ordering? If we use strict ordering (the default) then we can just use the assignment operators to write to `thread_state` and we can remove this function.

http://reviews.llvm.org/D6750

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