[llvm-branch-commits] [llvm] [AMDGPU] Put back ProperlyAlignedRC helper functions (PR #175000)

[Christudasan Devadasan via llvm-branch-commits]

cdevadas wrote:

> > Can you elaborate on it? How, during RA, can the newly introduced regclasses be constrained for their uses?
> 
> This shouldn't be necessary. The spill pseudos should support any register class, always. They can be split up as required to satisfy alignment when the pseudo is expanded

Yep. https://github.com/llvm/llvm-project/pull/177317 is meant to fix the align constraints for spill pseudos. I will cloes this PR when @easyonaadit lands this spill pseudo fixup patch after approval.

https://github.com/llvm/llvm-project/pull/175000