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llvm-6502/lib/CodeGen/RegAllocBase.cpp
Jakob Stoklund Olesen 2b3fa322b8 Don't look for empty live ranges in the unions. 
Empty live ranges represent undef and still get allocated, but they
won't appear in LiveIntervalUnions.

Patch by Patrik Hägglund!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156685 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-12 00:33:28 +00:00

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