[AMDGPU] Add synthetic regclass WWM_VGPR_32 for wwm reg operands#86008

cdevadas wants to merge 3 commits intollvm:mainllvm/llvm-project:mainfrom

cdevadas:wwm-vgpr-32-synthetic-classcdevadas/llvm-project:wwm-vgpr-32-synthetic-classCopy head branch name to clipboard