[PATCH] D85573: [CGAtomic] Mark atomic libcall functions `nounwind`

[Gui Andrade via Phabricator via cfe-commits]

guiand added a comment.

I don't think we can necessarily guarantee `argmemonly/readonly/writeonly`, particularly since these library calls can take a lock somewhere inside. I'll definitely add `nocapture` and `willreturn` though.


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  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D85573/new/

https://reviews.llvm.org/D85573