187   MachineInstr *DefMI = nullptr, *UseMI = nullptr;  in foldAsLoad()  local
199       if (UseMI && UseMI != MI)  in foldAsLoad()
204       UseMI = MI;  in foldAsLoad()
207   if (!DefMI || !UseMI)  in foldAsLoad()
213                           LIS.getInstructionIndex(*UseMI)))  in foldAsLoad()
223                     << "       into single use: " << *UseMI);  in foldAsLoad()
226   if (UseMI->readsWritesVirtualRegister(LI->reg(), &Ops).second)  in foldAsLoad()
229   MachineInstr *FoldMI = TII.foldMemoryOperand(*UseMI, Ops, *DefMI, &LIS);  in foldAsLoad()
233   LIS.ReplaceMachineInstrInMaps(*UseMI, *FoldMI);  in foldAsLoad()
235   if (UseMI->shouldUpdateCallSiteInfo())  in foldAsLoad()
236     UseMI->getMF()->moveCallSiteInfo(UseMI, FoldMI);  in foldAsLoad()
237   UseMI->eraseFromParent();  in foldAsLoad()