[llvm-branch-commits] [llvm] [AMDGPU] Allocate scratch space for dVGPRs for CWSR (PR #130055)

[Carl Ritson via llvm-branch-commits]

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

LGTM

nit: can you note somewhere (in a comment) that `ScratchReservedForDynamicVGPRs` is in bytes -- the magic divide by 4 to set `dynamic_vgpr_saved_count` was not entirely obvious.

https://github.com/llvm/llvm-project/pull/130055