[all-commits] [llvm/llvm-project] bd122f: [X86][AVX] canonicalizeLaneShuffleWithRepeatedOps ...

[Simon Pilgrim via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: bd122f6d217862b4631ac118c58f62a7dec16a02
      https://github.com/llvm/llvm-project/commit/bd122f6d217862b4631ac118c58f62a7dec16a02
  Author: Simon Pilgrim <llvm-dev at redking.me.uk>
  Date:   2021-01-22 (Fri, 22 Jan 2021)

  Changed paths:
    M llvm/lib/Target/X86/X86ISelLowering.cpp
    M llvm/test/CodeGen/X86/extract-concat.ll
    M llvm/test/CodeGen/X86/vector-shuffle-256-v4.ll

  Log Message:
  -----------
  [X86][AVX] canonicalizeLaneShuffleWithRepeatedOps - handle vperm2x128(movddup(x),movddup(y)) cases

Fold vperm2x128(movddup(x),movddup(y)) -> movddup(vperm2x128(x,y))