DAG: Avoid using getLibcallName when looking for a divrem call#170413

arsenm merged 3 commits intomainllvm/llvm-project:mainfrom

users/arsenm/dag/avoid-getLibcallName-ExpandDivRemLibCallllvm/llvm-project:users/arsenm/dag/avoid-getLibcallName-ExpandDivRemLibCallCopy head branch name to clipboard