[llvm] [AArch64][NeoverseV1/V2] Fix extended/shifted-register scheduling for… (PR #220920)

[Asher Dobrescu via llvm-commits]

https://github.com/Asher8118 approved this pull request.

Looks good to me.

> if needed I can add some instructions to AArch64/Inputs/basic-instructions.s but it modifies lot of targets.

I think it'd be good to add those in. I agree with David that it would be best to do it in a separate PR.

>Does not apply it on NeoverseV3 and others as it is not validated using llvm-exegesis on these hardwares.

Are there any plans to validate the other Neoverse targets and add this in?

https://github.com/llvm/llvm-project/pull/220920