25 bool RISCVFrameLowering::hasFP(const MachineFunction &MF) const {  in hasFP()
26   const TargetRegisterInfo *RegInfo = MF.getSubtarget().getRegisterInfo();  in hasFP()
28   const MachineFrameInfo &MFI = MF.getFrameInfo();  in hasFP()
29   return MF.getTarget().Options.DisableFramePointerElim(MF) ||  in hasFP()
30          RegInfo->needsStackRealignment(MF) || MFI.hasVarSizedObjects() ||  in hasFP()
35 void RISCVFrameLowering::determineFrameLayout(MachineFunction &MF) const {  in determineFrameLayout()
36   MachineFrameInfo &MFI = MF.getFrameInfo();  in determineFrameLayout()
43   uint64_t StackAlign = RI->needsStackRealignment(MF) ? MFI.getMaxAlignment()  in determineFrameLayout()
94 void RISCVFrameLowering::emitPrologue(MachineFunction &MF,  in emitPrologue()  argument
96   assert(&MF.front() == &MBB && "Shrink-wrapping not yet supported");  in emitPrologue()
98   MachineFrameInfo &MFI = MF.getFrameInfo();  in emitPrologue()
99   auto *RVFI = MF.getInfo<RISCVMachineFunctionInfo>();  in emitPrologue()
110   determineFrameLayout(MF);  in emitPrologue()
133   if (hasFP(MF))  in emitPrologue()
138 void RISCVFrameLowering::emitEpilogue(MachineFunction &MF,  in emitEpilogue()  argument
142   MachineFrameInfo &MFI = MF.getFrameInfo();  in emitEpilogue()
143   auto *RVFI = MF.getInfo<RISCVMachineFunctionInfo>();  in emitEpilogue()
158   if (RI->needsStackRealignment(MF) || MFI.hasVarSizedObjects()) {  in emitEpilogue()
159     assert(hasFP(MF) && "frame pointer should not have been eliminated");  in emitEpilogue()
169 int RISCVFrameLowering::getFrameIndexReference(const MachineFunction &MF,  in getFrameIndexReference()  argument
172   const MachineFrameInfo &MFI = MF.getFrameInfo();  in getFrameIndexReference()
173   const TargetRegisterInfo *RI = MF.getSubtarget().getRegisterInfo();  in getFrameIndexReference()
174   const auto *RVFI = MF.getInfo<RISCVMachineFunctionInfo>();  in getFrameIndexReference()
193     Offset += MF.getFrameInfo().getStackSize();  in getFrameIndexReference()
195     FrameReg = RI->getFrameRegister(MF);  in getFrameIndexReference()
196     if (hasFP(MF))  in getFrameIndexReference()
199       Offset += MF.getFrameInfo().getStackSize();  in getFrameIndexReference()
204 void RISCVFrameLowering::determineCalleeSaves(MachineFunction &MF,  in determineCalleeSaves()  argument
207   TargetFrameLowering::determineCalleeSaves(MF, SavedRegs, RS);  in determineCalleeSaves()
210   if (hasFP(MF)) {  in determineCalleeSaves()
218   MachineFrameInfo &MFI = MF.getFrameInfo();  in determineCalleeSaves()
220   if (MF.getFunction().hasFnAttribute("interrupt") && MFI.hasCalls()) {  in determineCalleeSaves()
232     if (MF.getSubtarget<RISCVSubtarget>().hasStdExtD() ||  in determineCalleeSaves()
233         MF.getSubtarget<RISCVSubtarget>().hasStdExtF()) {  in determineCalleeSaves()
236       const MCPhysReg * Regs = MF.getRegInfo().getCalleeSavedRegs();  in determineCalleeSaves()
247     MachineFunction &MF, RegScavenger *RS) const {  in processFunctionBeforeFrameFinalized()  argument
248   const TargetRegisterInfo *RegInfo = MF.getSubtarget().getRegisterInfo();  in processFunctionBeforeFrameFinalized()
249   MachineFrameInfo &MFI = MF.getFrameInfo();  in processFunctionBeforeFrameFinalized()
257   if (!isInt<11>(MFI.estimateStackSize(MF))) {  in processFunctionBeforeFrameFinalized()
267 bool RISCVFrameLowering::hasReservedCallFrame(const MachineFunction &MF) const {  in hasReservedCallFrame()
268   return !MF.getFrameInfo().hasVarSizedObjects();  in hasReservedCallFrame()
273     MachineFunction &MF, MachineBasicBlock &MBB,  in eliminateCallFramePseudoInstr()  argument
278   if (!hasReservedCallFrame(MF)) {  in eliminateCallFramePseudoInstr()