Revert "Revert "Revert "Resubmit rL345008 "Split MachinePipeliner code into header and cpp files""""

This reverts commit D56084.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350654 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed