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

[Harald van Dijk via llvm-commits]

hvdijk wrote:

Yeah, I think you're right that 12 is the correct result in that test. Your updated PR looks good to me at a quick glance, thanks! I'll do some additional testing tomorrow.

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