[llvm] [MemDepAnalysis] Don't reuse NonLocalPointerDeps cache if memory location size differs (PR #116936)

[Nikita Popov via llvm-commits]

https://github.com/nikic commented:

This looks good to me, but I'd still like to have a test case, even if it's brittle.

https://github.com/llvm/llvm-project/pull/116936