[all-commits] [llvm/llvm-project] c769ba: [X86][AVX] combineHorizOpWithShuffle - improve SHU...

[Simon Pilgrim via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: c769ba9514c3f82578513b730eda8d49ce257e23
      https://github.com/llvm/llvm-project/commit/c769ba9514c3f82578513b730eda8d49ce257e23
  Author: Simon Pilgrim <llvm-dev at redking.me.uk>
  Date:   2021-03-26 (Fri, 26 Mar 2021)

  Changed paths:
    M llvm/lib/Target/X86/X86ISelLowering.cpp
    M llvm/test/CodeGen/X86/masked_store_trunc.ll
    M llvm/test/CodeGen/X86/masked_store_trunc_ssat.ll
    M llvm/test/CodeGen/X86/masked_store_trunc_usat.ll
    M llvm/test/CodeGen/X86/vector-trunc-packus.ll
    M llvm/test/CodeGen/X86/vector-trunc-ssat.ll
    M llvm/test/CodeGen/X86/vector-trunc-usat.ll
    M llvm/test/CodeGen/X86/vector-trunc.ll

  Log Message:
  -----------
  [X86][AVX] combineHorizOpWithShuffle - improve SHUFFLE(HOP(LOSUBVECTOR(X),HISUBVECTOR(X))) folding

Peek through bitcasts to find subvector splits and use getTargetShuffleInputs to decode target shuffles as well as ShuffleVectorSDNode