[llvm] [AArch64] Tablegen patterns for `shuffle(zext(...))` to `uaddlp` (PR #195120)

[David Green via llvm-commits]

https://github.com/davemgreen commented:

Sounds good. Sometimes it is nice to canonicalize the code to a  songle form but I agree that here the patterns look OK.

https://github.com/llvm/llvm-project/pull/195120