[PATCH] D62433: [ObjC][ARC] Delete ObjC runtime calls if the argument is a global variable

[Akira Hatanaka via Phabricator via llvm-commits]

ahatanak added a comment.

In D62433#1520061 <https://reviews.llvm.org/D62433#1520061>, @gottesmm wrote:

> I don't remember. That being said, this should be a conservative optimization. What if someone adds in the future a different global where this isn't a no-op. Is it possible if you know what the global is to add a whitelist that you only care about those 2 things.


I agree we should be conservative here, so I made it check the presence of "arc_retain_agnostic" on the global. I'll post a clang patch that adds the attribute to the globals shortly.


Repository:
  rL LLVM

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https://reviews.llvm.org/D62433