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

[Duncan P. N. Exon Smith via llvm-commits]

LGTM!

> On 2016-Aug-18, at 10:34, David Li <davidxl at google.com> wrote:
> 
> davidxl updated this revision to Diff 68565.
> davidxl added a comment.
> 
> Addressed review feedbacks.
> 
> 
> https://reviews.llvm.org/D23619
> 
> Files:
>  include/llvm/IR/Instruction.h
>  lib/IR/Instruction.cpp
>  lib/IR/Instructions.cpp
>  lib/Transforms/Scalar/LoopUnswitch.cpp
> 
> <D23619.68565.patch>