[libcxx-commits] [libcxx] [libc++] Implement C++20 atomic_ref (PR #76647)

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huixie90 wrote:

I think majority of the tests would still pass even if the implementation does not have any atomic operations. i would suggest to have a look at these tests
https://github.com/llvm/llvm-project/blob/main/libcxx/test/std/atomics/atomics.types.generic/atomics.types.float/test_helper.h

(most of the tests in atomic float uses the test template above)

https://github.com/llvm/llvm-project/pull/76647