[profcheck] Add unknown branch weight for inlined memchr calls.#160964

mtrofin merged 2 commits intollvm:mainllvm/llvm-project:mainfrom

jinhuang1102:fixup/no-prof-AggressiveInstCombine-memchrjinhuang1102/llvm-project:fixup/no-prof-AggressiveInstCombine-memchrCopy head branch name to clipboard