[llvm] [ASAN] Adjust asan instrumented GlobalVariable size to not include redzone (PR #66666)

[Mitch Phillips via llvm-commits]

https://github.com/hctim requested changes to this pull request.

Yeah, `clang/test/CodeGen/memtag-globals-asm.cpp` is for MTE Globals, not ASan - and the sizes of the GVs should be multiple-of-16 bytes: https://github.com/ARM-software/abi-aa/blob/main/memtagabielf64/memtagabielf64.rst#compilation

What problem are you trying to solve here?

https://github.com/llvm/llvm-project/pull/66666