607     Register CopySrcReg;  in lookThruCopyLike()  local
609       CopySrcReg = MI->getOperand(1).getReg();  in lookThruCopyLike()
612       CopySrcReg = MI->getOperand(2).getReg();  in lookThruCopyLike()
615     if (!CopySrcReg.isVirtual())  in lookThruCopyLike()
616       return CopySrcReg;  in lookThruCopyLike()
618     SrcReg = CopySrcReg;  in lookThruCopyLike()
630     Register CopySrcReg;  in lookThruSingleUseCopyChain()  local
632       CopySrcReg = MI->getOperand(1).getReg();  in lookThruSingleUseCopyChain()
635       CopySrcReg = MI->getOperand(2).getReg();  in lookThruSingleUseCopyChain()
640     if (!CopySrcReg.isVirtual() || !MRI->hasOneNonDBGUse(CopySrcReg))  in lookThruSingleUseCopyChain()
643     SrcReg = CopySrcReg;  in lookThruSingleUseCopyChain()