[libcxx-commits] [libcxx] [libcxx][test] Prevent compiler optimising out uses of 64-bit atomics (PR #172517)

[Nikolas Klauser via libcxx-commits]

philnik777 wrote:

@DavidSpickett Is there a fundamental reason why libatomic can't be available on any plaforms, or is it simply missing implementations?

https://github.com/llvm/llvm-project/pull/172517