[clang] [llvm] [AArch64] Add CodeGen support for scalar FEAT_CPA (PR #105669)

[David Green via llvm-commits]

https://github.com/davemgreen commented:

Thanks for the updates, this is quite a bit simpler now. As far as I can tell this looks OK to me.

https://github.com/llvm/llvm-project/pull/105669