[all-commits] [llvm/llvm-project] 7c30c0: [DAG] visitVECTOR_SHUFFLE - MergeInnerShuffle - re...

[Simon Pilgrim via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 7c30c05ff71d062f0b8a05b7c3c12ede2c285371
      https://github.com/llvm/llvm-project/commit/7c30c05ff71d062f0b8a05b7c3c12ede2c285371
  Author: Simon Pilgrim <llvm-dev at redking.me.uk>
  Date:   2021-01-14 (Thu, 14 Jan 2021)

  Changed paths:
    M llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp

  Log Message:
  -----------
  [DAG] visitVECTOR_SHUFFLE - MergeInnerShuffle - reset shuffle ops and reorder early-out and second op matching. NFCI.

I'm hoping to reuse MergeInnerShuffle in some other folds - so ensure the candidate ops/mask are reset at the start of each run.

Also, move the second op matching before bailing to make it simpler to try to match other things afterward.