34 bool LoongArchFrameLowering::hasFP(const MachineFunction &MF) const {  in hasFP()
35   const TargetRegisterInfo *RegInfo = MF.getSubtarget().getRegisterInfo();  in hasFP()
37   const MachineFrameInfo &MFI = MF.getFrameInfo();  in hasFP()
38   return MF.getTarget().Options.DisableFramePointerElim(MF) ||  in hasFP()
39          RegInfo->hasStackRealignment(MF) || MFI.hasVarSizedObjects() ||  in hasFP()
43 bool LoongArchFrameLowering::hasBP(const MachineFunction &MF) const {  in hasBP()
44   const MachineFrameInfo &MFI = MF.getFrameInfo();  in hasBP()
47   return MFI.hasVarSizedObjects() && TRI->hasStackRealignment(MF);  in hasBP()
109 void LoongArchFrameLowering::determineFrameLayout(MachineFunction &MF) const {  in determineFrameLayout()
110   MachineFrameInfo &MFI = MF.getFrameInfo();  in determineFrameLayout()
123                                             const MachineFunction &MF) {  in estimateFunctionSizeInBytes()  argument
125   for (auto &MBB : MF)  in estimateFunctionSizeInBytes()
131 static bool needScavSlotForCFR(MachineFunction &MF) {  in needScavSlotForCFR()  argument
132   if (!MF.getSubtarget<LoongArchSubtarget>().hasBasicF())  in needScavSlotForCFR()
134   for (auto &MBB : MF)  in needScavSlotForCFR()
142     MachineFunction &MF, RegScavenger *RS) const {  in processFunctionBeforeFrameFinalized()  argument
147       MF.getInfo<LoongArchMachineFunctionInfo>();  in processFunctionBeforeFrameFinalized()
148   MachineFrameInfo &MFI = MF.getFrameInfo();  in processFunctionBeforeFrameFinalized()
153   bool IsLargeFunction = !isInt<27>(estimateFunctionSizeInBytes(TII, MF));  in processFunctionBeforeFrameFinalized()
160   if (!isInt<11>(MFI.estimateStackSize(MF)))  in processFunctionBeforeFrameFinalized()
164   if (needScavSlotForCFR(MF))  in processFunctionBeforeFrameFinalized()
179 void LoongArchFrameLowering::emitPrologue(MachineFunction &MF,  in emitPrologue()  argument
181   MachineFrameInfo &MFI = MF.getFrameInfo();  in emitPrologue()
182   auto *LoongArchFI = MF.getInfo<LoongArchMachineFunctionInfo>();  in emitPrologue()
196   if (MF.getFunction().getCallingConv() == CallingConv::GHC)  in emitPrologue()
199   determineFrameLayout(MF);  in emitPrologue()
209   uint64_t FirstSPAdjustAmount = getFirstSPAdjustAmount(MF, true);  in emitPrologue()
220         MF.addFrameInst(MCCFIInstruction::cfiDefCfaOffset(nullptr, StackSize));  in emitPrologue()
238     unsigned CFIIndex = MF.addFrameInst(MCCFIInstruction::createOffset(  in emitPrologue()
246   if (hasFP(MF)) {  in emitPrologue()
252     unsigned CFIIndex = MF.addFrameInst(  in emitPrologue()
262     if (hasFP(MF)) {  in emitPrologue()
283       unsigned CFIIndex = MF.addFrameInst(  in emitPrologue()
291   if (hasFP(MF)) {  in emitPrologue()
293     if (RI->hasStackRealignment(MF)) {  in emitPrologue()
307       if (hasBP(MF)) {  in emitPrologue()
319 void LoongArchFrameLowering::emitEpilogue(MachineFunction &MF,  in emitEpilogue()  argument
322   MachineFrameInfo &MFI = MF.getFrameInfo();  in emitEpilogue()
323   auto *LoongArchFI = MF.getInfo<LoongArchMachineFunctionInfo>();  in emitEpilogue()
327   if (MF.getFunction().getCallingConv() == CallingConv::GHC)  in emitEpilogue()
342   if (RI->hasStackRealignment(MF) || MFI.hasVarSizedObjects()) {  in emitEpilogue()
343     assert(hasFP(MF) && "frame pointer should not have been eliminated");  in emitEpilogue()
349   uint64_t FirstSPAdjustAmount = getFirstSPAdjustAmount(MF);  in emitEpilogue()
373 LoongArchFrameLowering::getFirstSPAdjustAmount(const MachineFunction &MF,  in getFirstSPAdjustAmount()  argument
375   const MachineFrameInfo &MFI = MF.getFrameInfo();  in getFirstSPAdjustAmount()
397 void LoongArchFrameLowering::determineCalleeSaves(MachineFunction &MF,  in determineCalleeSaves()  argument
400   TargetFrameLowering::determineCalleeSaves(MF, SavedRegs, RS);  in determineCalleeSaves()
403   if (hasFP(MF)) {  in determineCalleeSaves()
408   if (hasBP(MF))  in determineCalleeSaves()
416     const MachineFunction &MF) const {  in hasReservedCallFrame()
417   return !MF.getFrameInfo().hasVarSizedObjects();  in hasReservedCallFrame()
423     MachineFunction &MF, MachineBasicBlock &MBB,  in eliminateCallFramePseudoInstr()  argument
428   if (!hasReservedCallFrame(MF)) {  in eliminateCallFramePseudoInstr()
456   MachineFunction *MF = MBB.getParent();  in spillCalleeSavedRegisters()  local
457   const TargetInstrInfo &TII = *MF->getSubtarget().getInstrInfo();  in spillCalleeSavedRegisters()
465         !(Reg == LoongArch::R1 && MF->getFrameInfo().isReturnAddressTaken());  in spillCalleeSavedRegisters()
475     const MachineFunction &MF, int FI, Register &FrameReg) const {  in getFrameIndexReference()  argument
476   const MachineFrameInfo &MFI = MF.getFrameInfo();  in getFrameIndexReference()
477   const TargetRegisterInfo *RI = MF.getSubtarget().getRegisterInfo();  in getFrameIndexReference()
478   auto *LoongArchFI = MF.getInfo<LoongArchMachineFunctionInfo>();  in getFrameIndexReference()
480   uint64_t FirstSPAdjustAmount = getFirstSPAdjustAmount(MF);  in getFrameIndexReference()
503   } else if (RI->hasStackRealignment(MF) && !MFI.isFixedObjectIndex(FI)) {  in getFrameIndexReference()
507     FrameReg = hasBP(MF) ? LoongArchABI::getBPReg() : LoongArch::R3;  in getFrameIndexReference()
510     FrameReg = RI->getFrameRegister(MF);  in getFrameIndexReference()
511     if (hasFP(MF))  in getFrameIndexReference()
521     const MachineFunction &MF) const {  in enableShrinkWrapping()
523   if (MF.getFunction().hasOptNone())  in enableShrinkWrapping()