Manman Ren b5e6ddca56 Register Allocator: refactoring and add comments.
No functionality change. Thanks Andy for reviewing.

rdar://16162005


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204962 91177308-0d34-0410-b5e6-96231b3b80d8
2014-03-27 21:21:57 +00:00
..
2014-03-27 20:49:35 +00:00
2014-03-27 20:49:35 +00:00