new warnings

Seems to be a bit of new warnings recently:

llvm/llvm/lib/CodeGen/Spiller.cpp: In function 'void UpdateKills(llvm::MachineInstr&, llvm::BitVector&, std::vector<llvm::MachineOperand*, std::allocator<llvm::MachineOperand*> >&, const llvm::TargetRegisterInfo*)':
llvm/llvm/lib/CodeGen/Spiller.cpp:221: warning: unused variable 'TID'
llvm/llvm/lib/CodeGen/Spiller.cpp: In member function 'void llvm::LocalSpiller::TransferDeadness(llvm::MachineBasicBlock*, unsigned int, unsigned int, llvm::BitVector&, std::vector<llvm::MachineOperand*, std::allocator<llvm::MachineOperand*> >&)':
llvm/llvm/lib/CodeGen/Spiller.cpp:884: warning: unused variable 'TID'
llvm/llvm/lib/CodeGen/Spiller.cpp: In member function 'void llvm::LocalSpiller::RewriteMBB(llvm::MachineBasicBlock&, llvm::VirtRegMap&, llvm::AvailableSpills&, llvm::BitVector&, std::vector<llvm::MachineOperand*, std::allocator<llvm::MachineOperand*> >&)':
llvm/llvm/lib/CodeGen/Spiller.cpp:947: warning: unused variable 'TID'
llvm/llvm/lib/Target/Mips/MipsISelLowering.cpp: In member function 'llvm::SDValue llvm::MipsTargetLowering::LowerFORMAL_ARGUMENTS(llvm::SDValue, llvm::SelectionDAG&)':
llvm/llvm/lib/Target/Mips/MipsISelLowering.cpp:958: warning: 'Opcode' may be used uninitialized in this function