[llvm] [AArch64] Add @llvm.experimental.vector.match (PR #101974)

[David Sherwood via llvm-commits]

https://github.com/david-arm commented:

Thanks a lot for making these changes - it looks a lot nicer now! I haven't reviewed the whole patch yet, but I've left comments I have so far.

https://github.com/llvm/llvm-project/pull/101974