[PATCH] D74651: Add IR constructs for inalloca replacement preallocated call setup

[Eli Friedman via Phabricator via llvm-commits]

efriedma added a comment.

> Similar to the case of SEH try, I think we can really only solve this with a first class scope/region concept. In the meantime, I think we should move ahead with the implementation, and try to come up with a scope/region design that works for EH, call setup, SEH __try, and perhaps stack variable lifetime. I have a draft doc with a problem statement, but I don't have a good solution yet.

Okay, that makes sense.  (I still don't really see why we'd want this for variable lifetimes.  It isn't fundamentally problematic if variable lifetimes don't properly nest.)


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https://reviews.llvm.org/D74651