[llvm] [DA] Add check for base pointer invariance (PR #148241)

[Sjoerd Meijer via llvm-commits]

https://github.com/sjoerdmeijer approved this pull request.

Looks like a good fix to me.
Please wait a day before merging this in case @nikic has more comments. 

https://github.com/llvm/llvm-project/pull/148241