[PATCH] D23036: [SelectionDAG] Use a union of bitfield structs for SDNode::SubclassData.

[Justin Lebar via llvm-commits]

jlebar created this revision.
jlebar added a reviewer: chandlerc.
jlebar added a subscriber: llvm-commits.

This greatly simplifies our handling of SDNode::SubclassData.

NFC, hopefully.  :)

https://reviews.llvm.org/D23036

Files:
  llvm/include/llvm/CodeGen/SelectionDAGNodes.h
  llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp

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