[llvm] [llvm] Fix __builtin_object_size interaction between Negative Offset … (PR #111827)

[Harald van Dijk via llvm-commits]

https://github.com/hvdijk commented:

Thanks, at this stage, I believe your PR is correct and fixes all the bugs! In one case, it results in slightly worse results (but still valid results) though, I've left a comment on the specific bit of code that causes this, please take a look and see if you agree.

https://github.com/llvm/llvm-project/pull/111827