[PATCH] Fix instruction scheduling live register tracking

[Paweł Bylica]

No true buildbot failures so far so I'm quite happy about the fix. Thanks for all your help.

Will this code stay here for long? I've heard some rumors that it is going to be replaced. If it stays I would like to refactor it a bit.


REPOSITORY
  rL LLVM

http://reviews.llvm.org/D9993

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