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llvm-6502/lib/CodeGen/BranchFolding.cpp
Jakob Stoklund Olesen 80799fbe3c Branch folding may invalidate liveness. 
Branch folding can use a register scavenger to update liveness
information when required. Don't do that if liveness information is
already invalid.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153517 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-27 17:06:09 +00:00

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