[libc-commits] [PATCH] D145608: [libc] Add intrinsic for thread fence to the atomic support

[Joseph Huber via Phabricator via libc-commits]

jhuber6 added inline comments.


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Comment at: libc/src/__support/CPP/atomic.h:97
+inline void atomic_thread_fence(MemoryOrder mem_ord) {
+  __atomic_thread_fence(int(mem_ord));
+}
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lntue wrote:
> Do we need a guard to check if the builtin `__atomic_thread_fence` is available?
We use all the other intrinsics above, so as long as it supports the same built-ins that GNU does it should be provided.
Also, should this function be `noexcept` or `always_inline`?


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D145608/new/

https://reviews.llvm.org/D145608