[llvm-branch-commits] [llvm] AMDGPU: Introduce a pass to replace VGPR MFMAs with AGPR (PR #145024)

[Matt Arsenault via llvm-branch-commits]

arsenm wrote:

> Do you assume that at this stage there are no accvgpr_write/read instructions, but only COPY?

Yes, you should never use those for actual copies. Not using COPY always hurts optimizations 

https://github.com/llvm/llvm-project/pull/145024