[PATCH] D23619: Refactor metadata copying/swapping code to make it sharable

[David Li via llvm-commits]

davidxl created this revision.
davidxl added reviewers: spatel, dexonsmith.
davidxl added a subscriber: llvm-commits.
Herald added a subscriber: mzolotukhin.

No functional change is intended.

https://reviews.llvm.org/D23619

Files:
  include/llvm/IR/Instruction.h
  lib/IR/Instruction.cpp
  lib/IR/Instructions.cpp
  lib/Transforms/Scalar/LoopUnswitch.cpp

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