[PATCH] D129947: [X86] Prefer `lock or` over mfence.

Wed Jan 4 15:44:49 PST 2023

loladiro added subscribers: craig.topper, loladiro.
loladiro added a reviewer: craig.topper.
loladiro accepted this revision.
loladiro added a comment.
This revision is now accepted and ready to land.
Herald added a subscriber: StephenFan.

I just looked at this again also, since this was requested in https://github.com/JuliaLang/julia/pull/48123 and came to the same conclusion, so LGTM, but it would be good to know from @craig.topper or @reames if there was any reason this wasn't done in D61863 <https://reviews.llvm.org/D61863>.

Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D129947/new/

https://reviews.llvm.org/D129947