[PATCH] D77982: [Windows SEH] Fix the frame-ptr of a nested-filter within a _finally

[Ten Tzen via Phabricator via cfe-commits]

tentzen added a comment.

Hi,  Is there more concern?
To re-iterate the implementation strategy of this change:

This is a rare case that only manifests itself under Windows SEH.  We don't want to pollut target agnostic codes.  
The ABI of SEH _finally is fixed with two implicit parameters; one abnormal execution and one establisher Stack-pointer. This ABI will never change, or a huge problem will arise.  
CGF.LocalDeclMap is the fundamental data structure in Clang-CodeGen phase with one primary purpose, storing alloca instructions.  Retrieving alloca of spilling instruction for 2nd implicit-argument from that data structure is legitimate and robust.
thanks,


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D77982/new/

https://reviews.llvm.org/D77982