[AMDGPU] Move kernarg preload logic to AMDGPU Attributor#123547

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

kerbowa:move-kernarg-preload-lowering-to-amdgpuattributorkerbowa/llvm-project:move-kernarg-preload-lowering-to-amdgpuattributorCopy head branch name to clipboard