[PATCH] D92808: [ObjC][ARC] Annotate calls with attributes instead of emitting retainRV or claimRV calls in the IR

[Akira Hatanaka via Phabricator via cfe-commits]

ahatanak added a comment.

Hmm, it seems that calls to some of the ARC runtime functions don't get the token. In some cases, I'm seeing WinEHPrepare (ToT clang, without this patch) turn a call to @objc_unsafeClaimAutoreleasedReturnValue in an EH cleanup block into an unreachable.


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