[libcxx-commits] [libcxx] [libc++] Fix `std::atomic::wait` ulock wait UL_COMPARE_AND_WAIT64 (PR #92783)

[Louis Dionne via libcxx-commits]

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@@ -0,0 +1,32 @@
+//===----------------------------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+// UNSUPPORTED: c++03, c++11, c++14, c++17
+// UNSUPPORTED: no-threads
+// XFAIL: availability-synchronization_library-missing
+// This bug was first fixed in LLVM 19
+// XFAIL: using-built-library-before-llvm-19
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ldionne wrote:

Maybe just turn this into `UNSUPPORTED` since the `apple-backdeployment-hardening` looks like it would require  very tedious checking of the software versions and maybe even hardware.

https://github.com/llvm/llvm-project/pull/92783