[llvm] [AMDGPU] More accurately account for AVGPR pressure (PR #150711)

[Lucas Ramirez via llvm-commits]

https://github.com/lucas-rami commented:

Is there a specific rationale to count extra AVGPRs beyond twice the addressable limit as AGPRs instead of VGPRs? Would doing the opposite make any difference?

https://github.com/llvm/llvm-project/pull/150711