[llvm] [DA] disambiguate evolution of base addresses (PR #116628)

[Nikita Popov via llvm-commits]

nikic wrote:

@sebpop Just from a quick look, it's probably because IR is modified during BatchAA lifetime and the cache becomes invalid. To start with you can just create the BatchAA directly inside underlyingObjectsAlias (without any batching). It would be nice to use it in a larger scope for compile-time reasons, but it requires some more care.

https://github.com/llvm/llvm-project/pull/116628