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2020 Apr 04
2
Permitted success/failure orderings for atomic compare_exchange
A question has come up on how to interpret the wording of LLVM's
documentation regarding the possible memory ordering for success and
failure of atomic compare_exchange operations.
>From the LLVM reference:
"The success and failure ordering
<https://llvm.org/docs/LangRef.html#ordering> arguments specify how this
cmpxchg synchronizes with other atomic operations. Both ordering