203     MachineInstr *AvailCopy = findCopyDefViaUnit(*RUI, TRI);  in findAvailBackwardCopy()  local
204     if (!AvailCopy ||  in findAvailBackwardCopy()
205         !TRI.isSubRegisterEq(AvailCopy->getOperand(1).getReg(), Reg))  in findAvailBackwardCopy()
208     Register AvailSrc = AvailCopy->getOperand(1).getReg();  in findAvailBackwardCopy()
209     Register AvailDef = AvailCopy->getOperand(0).getReg();  in findAvailBackwardCopy()
211          make_range(AvailCopy->getReverseIterator(), I.getReverseIterator()))  in findAvailBackwardCopy()
218     return AvailCopy;  in findAvailBackwardCopy()
226     MachineInstr *AvailCopy =  in findAvailCopy()  local
228     if (!AvailCopy ||  in findAvailCopy()
229         !TRI.isSubRegisterEq(AvailCopy->getOperand(0).getReg(), Reg))  in findAvailCopy()
234     Register AvailSrc = AvailCopy->getOperand(1).getReg();  in findAvailCopy()
235     Register AvailDef = AvailCopy->getOperand(0).getReg();  in findAvailCopy()
237          make_range(AvailCopy->getIterator(), DestCopy.getIterator()))  in findAvailCopy()
243     return AvailCopy;  in findAvailCopy()