54 WebAssemblyFrameLowering::getLocalForStackObject(MachineFunction &MF,  in getLocalForStackObject()  argument
56   MachineFrameInfo &MFI = MF.getFrameInfo();  in getLocalForStackObject()
73       *MF.getSubtarget<WebAssemblySubtarget>().getTargetLowering();  in getLocalForStackObject()
74   WebAssemblyFunctionInfo *FuncInfo = MF.getInfo<WebAssemblyFunctionInfo>();  in getLocalForStackObject()
75   ComputeValueVTs(TLI, MF.getDataLayout(), AI->getAllocatedType(), ValueVTs);  in getLocalForStackObject()
94 bool WebAssemblyFrameLowering::hasBP(const MachineFunction &MF) const {  in hasBP()
96       MF.getSubtarget<WebAssemblySubtarget>().getRegisterInfo();  in hasBP()
97   return RegInfo->hasStackRealignment(MF);  in hasBP()
102 bool WebAssemblyFrameLowering::hasFP(const MachineFunction &MF) const {  in hasFP()
103   const MachineFrameInfo &MFI = MF.getFrameInfo();  in hasFP()
112   bool NeedsFixedReference = !hasBP(MF) || HasFixedSizedObjects;  in hasFP()
125     const MachineFunction &MF) const {  in hasReservedCallFrame()
126   return !MF.getFrameInfo().hasVarSizedObjects();  in hasReservedCallFrame()
132     const MachineFunction &MF) const {  in needsSPForLocalFrame()
133   auto &MFI = MF.getFrameInfo();  in needsSPForLocalFrame()
134   return MFI.getStackSize() || MFI.adjustsStack() || hasFP(MF);  in needsSPForLocalFrame()
141     const MachineFunction &MF) const {  in needsPrologForEH()
142   auto EHType = MF.getTarget().getMCAsmInfo()->getExceptionHandlingType();  in needsPrologForEH()
144          MF.getFunction().hasPersonalityFn() && MF.getFrameInfo().hasCalls();  in needsPrologForEH()
150 bool WebAssemblyFrameLowering::needsSP(const MachineFunction &MF) const {  in needsSP()
151   return needsSPForLocalFrame(MF) || needsPrologForEH(MF);  in needsSP()
159     const MachineFunction &MF) const {  in needsSPWriteback()
160   auto &MFI = MF.getFrameInfo();  in needsSPWriteback()
161   assert(needsSP(MF));  in needsSPWriteback()
170                        !MF.getFunction().hasFnAttribute(Attribute::NoRedZone);  in needsSPWriteback()
171   return needsSPForLocalFrame(MF) && !CanUseRedZone;  in needsSPWriteback()
174 unsigned WebAssemblyFrameLowering::getSPReg(const MachineFunction &MF) {  in getSPReg()  argument
175   return MF.getSubtarget<WebAssemblySubtarget>().hasAddr64()  in getSPReg()
180 unsigned WebAssemblyFrameLowering::getFPReg(const MachineFunction &MF) {  in getFPReg()  argument
181   return MF.getSubtarget<WebAssemblySubtarget>().hasAddr64()  in getFPReg()
187 WebAssemblyFrameLowering::getOpcConst(const MachineFunction &MF) {  in getOpcConst()  argument
188   return MF.getSubtarget<WebAssemblySubtarget>().hasAddr64()  in getOpcConst()
193 unsigned WebAssemblyFrameLowering::getOpcAdd(const MachineFunction &MF) {  in getOpcAdd()  argument
194   return MF.getSubtarget<WebAssemblySubtarget>().hasAddr64()  in getOpcAdd()
199 unsigned WebAssemblyFrameLowering::getOpcSub(const MachineFunction &MF) {  in getOpcSub()  argument
200   return MF.getSubtarget<WebAssemblySubtarget>().hasAddr64()  in getOpcSub()
205 unsigned WebAssemblyFrameLowering::getOpcAnd(const MachineFunction &MF) {  in getOpcAnd()  argument
206   return MF.getSubtarget<WebAssemblySubtarget>().hasAddr64()  in getOpcAnd()
212 WebAssemblyFrameLowering::getOpcGlobGet(const MachineFunction &MF) {  in getOpcGlobGet()  argument
213   return MF.getSubtarget<WebAssemblySubtarget>().hasAddr64()  in getOpcGlobGet()
219 WebAssemblyFrameLowering::getOpcGlobSet(const MachineFunction &MF) {  in getOpcGlobSet()  argument
220   return MF.getSubtarget<WebAssemblySubtarget>().hasAddr64()  in getOpcGlobSet()
226     unsigned SrcReg, MachineFunction &MF, MachineBasicBlock &MBB,  in writeSPToGlobal()  argument
228   const auto *TII = MF.getSubtarget<WebAssemblySubtarget>().getInstrInfo();  in writeSPToGlobal()
231   auto *SPSymbol = MF.createExternalSymbolName(ES);  in writeSPToGlobal()
233   BuildMI(MBB, InsertStore, DL, TII->get(getOpcGlobSet(MF)))  in writeSPToGlobal()
240     MachineFunction &MF, MachineBasicBlock &MBB,  in eliminateCallFramePseudoInstr()  argument
242   assert(!I->getOperand(0).getImm() && (hasFP(MF) || hasBP(MF)) &&  in eliminateCallFramePseudoInstr()
244   auto &ST = MF.getSubtarget<WebAssemblySubtarget>();  in eliminateCallFramePseudoInstr()
247       needsSPWriteback(MF)) {  in eliminateCallFramePseudoInstr()
249     writeSPToGlobal(getSPReg(MF), MF, MBB, I, DL);  in eliminateCallFramePseudoInstr()
254 void WebAssemblyFrameLowering::emitPrologue(MachineFunction &MF,  in emitPrologue()  argument
257   auto &MFI = MF.getFrameInfo();  in emitPrologue()
261   if (!needsSP(MF))  in emitPrologue()
265   auto &ST = MF.getSubtarget<WebAssemblySubtarget>();  in emitPrologue()
267   auto &MRI = MF.getRegInfo();  in emitPrologue()
276       MRI.getTargetRegisterInfo()->getPointerRegClass(MF);  in emitPrologue()
277   unsigned SPReg = getSPReg(MF);  in emitPrologue()
282   auto *SPSymbol = MF.createExternalSymbolName(ES);  in emitPrologue()
283   BuildMI(MBB, InsertPt, DL, TII->get(getOpcGlobGet(MF)), SPReg)  in emitPrologue()
286   bool HasBP = hasBP(MF);  in emitPrologue()
288     auto FI = MF.getInfo<WebAssemblyFunctionInfo>();  in emitPrologue()
297     BuildMI(MBB, InsertPt, DL, TII->get(getOpcConst(MF)), OffsetReg)  in emitPrologue()
299     BuildMI(MBB, InsertPt, DL, TII->get(getOpcSub(MF)), getSPReg(MF))  in emitPrologue()
306     BuildMI(MBB, InsertPt, DL, TII->get(getOpcConst(MF)), BitmaskReg)  in emitPrologue()
308     BuildMI(MBB, InsertPt, DL, TII->get(getOpcAnd(MF)), getSPReg(MF))  in emitPrologue()
309         .addReg(getSPReg(MF))  in emitPrologue()
312   if (hasFP(MF)) {  in emitPrologue()
316     BuildMI(MBB, InsertPt, DL, TII->get(WebAssembly::COPY), getFPReg(MF))  in emitPrologue()
317         .addReg(getSPReg(MF));  in emitPrologue()
319   if (StackSize && needsSPWriteback(MF)) {  in emitPrologue()
320     writeSPToGlobal(getSPReg(MF), MF, MBB, InsertPt, DL);  in emitPrologue()
324 void WebAssemblyFrameLowering::emitEpilogue(MachineFunction &MF,  in emitEpilogue()  argument
326   uint64_t StackSize = MF.getFrameInfo().getStackSize();  in emitEpilogue()
327   if (!needsSP(MF) || !needsSPWriteback(MF))  in emitEpilogue()
329   auto &ST = MF.getSubtarget<WebAssemblySubtarget>();  in emitEpilogue()
331   auto &MRI = MF.getRegInfo();  in emitEpilogue()
341   unsigned SPFPReg = hasFP(MF) ? getFPReg(MF) : getSPReg(MF);  in emitEpilogue()
342   if (hasBP(MF)) {  in emitEpilogue()
343     auto FI = MF.getInfo<WebAssemblyFunctionInfo>();  in emitEpilogue()
347         MRI.getTargetRegisterInfo()->getPointerRegClass(MF);  in emitEpilogue()
349     BuildMI(MBB, InsertPt, DL, TII->get(getOpcConst(MF)), OffsetReg)  in emitEpilogue()
355     BuildMI(MBB, InsertPt, DL, TII->get(getOpcAdd(MF)), SPReg)  in emitEpilogue()
362   writeSPToGlobal(SPReg, MF, MBB, InsertPt, DL);  in emitEpilogue()
376 WebAssemblyFrameLowering::getDwarfFrameBase(const MachineFunction &MF) const {  in getDwarfFrameBase()
379   const WebAssemblyFunctionInfo &MFI = *MF.getInfo<WebAssemblyFunctionInfo>();  in getDwarfFrameBase()
380   if (needsSP(MF) && MFI.isFrameBaseVirtual()) {  in getDwarfFrameBase()