[all-commits] [llvm/llvm-project] 8f2f61: [X86][AVX] combineX86ShufflesRecursively - peekThr...

[Simon Pilgrim via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 8f2f613a6ecc75d592e9bd379b20b95790c00827
      https://github.com/llvm/llvm-project/commit/8f2f613a6ecc75d592e9bd379b20b95790c00827
  Author: Simon Pilgrim <llvm-dev at redking.me.uk>
  Date:   2020-05-31 (Sun, 31 May 2020)

  Changed paths:
    M llvm/lib/Target/X86/X86ISelLowering.cpp
    M llvm/test/CodeGen/X86/vector-reduce-mul.ll

  Log Message:
  -----------
  [X86][AVX] combineX86ShufflesRecursively - peekThroughOneUseBitcasts subvector before widening.

This matches what we do for the full sized vector ops at the start of combineX86ShufflesRecursively, and helps getFauxShuffleMask extract more INSERT_SUBVECTOR patterns.