[clang] [llvm] [Clang][LLVM] Implement single-multi vectors MOP4{A/S} (PR #128854)

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https://github.com/Lukacma commented:

Looks good. I would definitely highlight in the PR description the change to SVEEmitter you made though and the reasoning behind it.

https://github.com/llvm/llvm-project/pull/128854