53                                     MachineBasicBlock &MBB) const {  in emitPrologue()
54   MachineBasicBlock::iterator MBBI = MBB.begin();  in emitPrologue()
55   DebugLoc DL = (MBBI != MBB.end()) ? MBBI->getDebugLoc() : DebugLoc();  in emitPrologue()
63     BuildMI(MBB, MBBI, DL, TII.get(AVR::BSETs))  in emitPrologue()
71     BuildMI(MBB, MBBI, DL, TII.get(AVR::PUSHWRr))  in emitPrologue()
75     BuildMI(MBB, MBBI, DL, TII.get(AVR::INRdA), AVR::R0)  in emitPrologue()
78     BuildMI(MBB, MBBI, DL, TII.get(AVR::PUSHRr))  in emitPrologue()
81     BuildMI(MBB, MBBI, DL, TII.get(AVR::EORRdRr))  in emitPrologue()
86     BuildMI(MBB, MBBI, DL, TII.get(AVR::EORRdRr))  in emitPrologue()
103       (MBBI != MBB.end()) && MBBI->getFlag(MachineInstr::FrameSetup) &&  in emitPrologue()
109   BuildMI(MBB, MBBI, DL, TII.get(AVR::SPREAD), AVR::R29R28)  in emitPrologue()
126   MachineInstr *MI = BuildMI(MBB, MBBI, DL, TII.get(Opcode), AVR::R29R28)  in emitPrologue()
134   BuildMI(MBB, MBBI, DL, TII.get(AVR::SPWRITE), AVR::SP)  in emitPrologue()
139 static void restoreStatusRegister(MachineFunction &MF, MachineBasicBlock &MBB) {  in restoreStatusRegister()  argument
142   MachineBasicBlock::iterator MBBI = MBB.getLastNonDebugInstr();  in restoreStatusRegister()
151     BuildMI(MBB, MBBI, DL, TII.get(AVR::POPRd), AVR::R0);  in restoreStatusRegister()
152     BuildMI(MBB, MBBI, DL, TII.get(AVR::OUTARr))  in restoreStatusRegister()
155     BuildMI(MBB, MBBI, DL, TII.get(AVR::POPWRd), AVR::R1R0);  in restoreStatusRegister()
160                                     MachineBasicBlock &MBB) const {  in emitEpilogue()
169   MachineBasicBlock::iterator MBBI = MBB.getLastNonDebugInstr();  in emitEpilogue()
181     restoreStatusRegister(MF, MBB);  in emitEpilogue()
186   while (MBBI != MBB.begin()) {  in emitEpilogue()
208   MachineInstr *MI = BuildMI(MBB, MBBI, DL, TII.get(Opcode), AVR::R29R28)  in emitEpilogue()
215   BuildMI(MBB, MBBI, DL, TII.get(AVR::SPWRITE), AVR::SP)  in emitEpilogue()
218   restoreStatusRegister(MF, MBB);  in emitEpilogue()
238     MachineBasicBlock &MBB, MachineBasicBlock::iterator MI,  in spillCalleeSavedRegisters()  argument
245   DebugLoc DL = MBB.findDebugLoc(MI);  in spillCalleeSavedRegisters()
246   MachineFunction &MF = *MBB.getParent();  in spillCalleeSavedRegisters()
253     bool IsNotLiveIn = !MBB.isLiveIn(Reg);  in spillCalleeSavedRegisters()
262       MBB.addLiveIn(Reg);  in spillCalleeSavedRegisters()
266     BuildMI(MBB, MI, DL, TII.get(AVR::PUSHRr))  in spillCalleeSavedRegisters()
278     MachineBasicBlock &MBB, MachineBasicBlock::iterator MI,  in restoreCalleeSavedRegisters()  argument
284   DebugLoc DL = MBB.findDebugLoc(MI);  in restoreCalleeSavedRegisters()
285   const MachineFunction &MF = *MBB.getParent();  in restoreCalleeSavedRegisters()
295     BuildMI(MBB, MI, DL, TII.get(AVR::POPRd), Reg);  in restoreCalleeSavedRegisters()
303 static void fixStackStores(MachineBasicBlock &MBB,  in fixStackStores()  argument
307   for (auto I = MI, E = MBB.end(); I != E && !I->isCall();) {  in fixStackStores()
334     MachineFunction &MF, MachineBasicBlock &MBB,  in eliminateCallFramePseudoInstr()  argument
343     fixStackStores(MBB, MI, TII, AVR::R29R28);  in eliminateCallFramePseudoInstr()
344     return MBB.erase(MI);  in eliminateCallFramePseudoInstr()
362       BuildMI(MBB, MI, DL, TII.get(AVR::SPREAD), AVR::R31R30).addReg(AVR::SP);  in eliminateCallFramePseudoInstr()
364       MachineInstr *New = BuildMI(MBB, MI, DL, TII.get(AVR::SUBIWRdK), AVR::R31R30)  in eliminateCallFramePseudoInstr()
369       BuildMI(MBB, MI, DL, TII.get(AVR::SPWRITE), AVR::SP)  in eliminateCallFramePseudoInstr()
374       fixStackStores(MBB, MI, TII, AVR::R31R30);  in eliminateCallFramePseudoInstr()
392       BuildMI(MBB, MI, DL, TII.get(AVR::SPREAD), AVR::R31R30).addReg(AVR::SP);  in eliminateCallFramePseudoInstr()
394       MachineInstr *New = BuildMI(MBB, MI, DL, TII.get(addOpcode), AVR::R31R30)  in eliminateCallFramePseudoInstr()
399       BuildMI(MBB, MI, DL, TII.get(AVR::SPWRITE), AVR::SP)  in eliminateCallFramePseudoInstr()
404   return MBB.erase(MI);  in eliminateCallFramePseudoInstr()
514     for (MachineBasicBlock &MBB : MF) {  in runOnMachineFunction()
516       if (!MBB.empty() && MBB.back().isReturn()) {  in runOnMachineFunction()
517         MBBI = MBB.getLastNonDebugInstr();  in runOnMachineFunction()
519         BuildMI(MBB, MBBI, DL, TII.get(AVR::COPY), AVR::SP)  in runOnMachineFunction()