ARC probably yes (assuming the standard library annotates the atomic operations ...

vlovich123 on Nov 28, 2020 | parent | context | favorite | on: Apple CPU tricks: memory reordering, JavaScript su...

ARC probably yes (assuming the standard library annotates the atomic operations properly). RC no. That being said, it sounds like in general uncontended atomic operations are faster so this might benefit a lot of atomic code in any language.