[VectorCombine] Scalarize bin ops and cmps with two splatted operands#137786

lukel97 wants to merge 2 commits intollvm:mainllvm/llvm-project:mainfrom

lukel97:vector-combine/scalarizeBinOpOfSplatslukel97/llvm-project:vector-combine/scalarizeBinOpOfSplatsCopy head branch name to clipboard