Matthias Braun 87a86058fa Refactor LiveInterval: introduce new LiveRange class
LiveRange just manages a list of segments and a list of value numbers
now as LiveInterval did previously, but without having details like spill
weight or a fixed register number.
LiveInterval is now a subclass of LiveRange and simply adds the spill weight
and the register number.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192393 91177308-0d34-0410-b5e6-96231b3b80d8
2013-10-10 21:28:47 +00:00
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