[PATCH 5/5] Represent RegUnit liveness with LiveRanges instances

[Matthias Braun]

Previously LiveInterval has been used, but having a spill weight and
register number is unnecessary for a register unit.
---
 include/llvm/CodeGen/LiveIntervalAnalysis.h |  28 +++---
 include/llvm/CodeGen/RegisterPressure.h     |   4 +-
 lib/CodeGen/InlineSpiller.cpp               |   6 +-
 lib/CodeGen/InterferenceCache.cpp           |   8 +-
 lib/CodeGen/InterferenceCache.h             |   2 +-
 lib/CodeGen/LiveDebugVariables.cpp          |  18 ++--
 lib/CodeGen/LiveIntervalAnalysis.cpp        | 133 ++++++++++++++--------------
 lib/CodeGen/LiveRangeEdit.cpp               |   6 +-
 lib/CodeGen/LiveRegMatrix.cpp               |   6 +-
 lib/CodeGen/MachineVerifier.cpp             |  12 +--
 lib/CodeGen/RegAllocGreedy.cpp              |   6 +-
 lib/CodeGen/RegisterCoalescer.cpp           |   4 +-
 lib/CodeGen/RegisterPressure.cpp            |  14 +--
 13 files changed, 125 insertions(+), 122 deletions(-)

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