[profcheck] Add heuristical profile metadata for lowering table-based cttz.#161898

mtrofin merged 3 commits intollvm:mainllvm/llvm-project:mainfrom

jinhuang1102:fixup/no-prof-table-based-cttz-basicsjinhuang1102/llvm-project:fixup/no-prof-table-based-cttz-basicsCopy head branch name to clipboard