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...ad/write lock base on std::atomic, the old methods not only has potential performance issue(Sorry I can't provide concrete evidence, any benchmark result is welcome) but also non-standard. Before std::shared_mutex in C++17 got fully adopt by LLVM codebase, I think we can use std::atomic + std::conditional_variable approach like this: https://gist.github.com/mshockwave/b314eb78d4019e7e106e705e864e0398 to power RWMutex. -- Bekket McClane Department of Computer Science, National Tsing Hua University -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/p...