[llvm] [AArch64][Machine-Combiner] Split loads into lanes of neon vectors into multiple vectors when possible (PR #142941)

[David Green via llvm-commits]

davemgreen wrote:

We did seem to forget about aliasing. Reverting back to a good point and recommitting a fixed version might be the best way forward.

https://github.com/llvm/llvm-project/pull/142941