[PATCH] D58966: [libc++] Fix <atomic> failures on GCC

[Louis Dionne via Phabricator via cfe-commits]

ldionne created this revision.
ldionne added a reviewer: EricWF.
Herald added a reviewer: jfb.
Herald added subscribers: cfe-commits, jdoerfert, jfb, dexonsmith, jkorous, christof.
Herald added a project: clang.

In https://reviews.llvm.org/D58201, we turned memory_order into an enum
class in C++20 mode. However, we were not casting memory_order to its
underlying type correctly for the GCC implementation, which broke the
build bots. I also fixed a test that was failing in C++17 mode on GCC 5.


Repository:
  rC Clang

https://reviews.llvm.org/D58966

Files:
  libcxx/include/atomic
  libcxx/test/std/atomics/atomics.lockfree/isalwayslockfree.pass.cpp

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