[llvm] [AArch64] Lower partial add reduction to udot or svdot (PR #101010)

[Sander de Smalen via llvm-commits]

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

Hi @SamTebbs33 I hadn't really followed the other patches before looking at this one, so perhaps some of my questions have already been answered in the other PRs.

https://github.com/llvm/llvm-project/pull/101010