[all-commits] [llvm/llvm-project] f4eac6: [DAG] visitOR - merge isa/cast<ShuffleVectorSDNode...

[Simon Pilgrim via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: f4eac6e5f66de5363ad3f938bef97ae3230ef958
      https://github.com/llvm/llvm-project/commit/f4eac6e5f66de5363ad3f938bef97ae3230ef958
  Author: Simon Pilgrim <llvm-dev at redking.me.uk>
  Date:   2022-05-14 (Sat, 14 May 2022)

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

  Log Message:
  -----------
  [DAG] visitOR - merge isa/cast<ShuffleVectorSDNode> into dyn_cast<ShuffleVectorSDNode>. NFC.

Also, initialize entire mask to -1 to simplify undefined cases.