[llvm] [VectorCombine] Combine adjacent loads feeding as shuffle operands (PR #213007)

[Hari Limaye via llvm-commits]

hazzlim wrote:

@dtcxzyw If I understand correctly the [llvm-hackme](https://github.com/dtcxzyw/llvm-hackme) issue is resolved?

https://github.com/llvm/llvm-project/pull/213007