[llvm] [FunctionAttrs] Improve handling of alias-preserving intrinsic calls (PR #68453)

[Nikita Popov via llvm-commits]

nikic wrote:

> Also, any insight on how to make the equivalent change to the attributor?

Does it need any changes? I'd expect that Attributor uses CaptureTracking, which already handles this.

https://github.com/llvm/llvm-project/pull/68453