[LLVMdev] new warnings in r58273

[Mike Stump]

/Volumes/mrs5/net/llvm/llvm/lib/CodeGen/PreAllocSplitting.cpp: In  
member function ‘bool<unnamed>::PreAllocSplitting::SplitRegLiveInterval 
(llvm::LiveInterval*)’:
/Volumes/mrs5/net/llvm/llvm/lib/CodeGen/PreAllocSplitting.cpp:546:  
warning: ‘SS’ may be used uninitialized in this function