[PATCH] D146683: [DAG Combine] Conservatively check the VSELECT Operation Action in tryToFoldExtendSelectLoad

[Xiang Zhang via Phabricator via llvm-commits]

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tryToFoldExtendSelectLoad can be called in DAG combine2 which has already finish legalization
So we should conservatively check the Operation Action for new VSELECT.


https://reviews.llvm.org/D146683

Files:
  llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
  llvm/lib/Target/X86/X86ISelDAGToDAG.cpp
  llvm/test/CodeGen/X86/select-ext.ll
  llvm/test/CodeGen/X86/vselect-post-combine.ll

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