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1//===- LanaiMachineFuctionInfo.h - Lanai machine func info -------*- C++ -*-==//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8//9// This file declares Lanai-specific per-machine-function information.10//11//===----------------------------------------------------------------------===//12 13#ifndef LLVM_LIB_TARGET_LANAI_LANAIMACHINEFUNCTIONINFO_H14#define LLVM_LIB_TARGET_LANAI_LANAIMACHINEFUNCTIONINFO_H15 16#include "LanaiRegisterInfo.h"17#include "llvm/CodeGen/MachineFunction.h"18#include "llvm/CodeGen/MachineRegisterInfo.h"19 20namespace llvm {21 22// LanaiMachineFunctionInfo - This class is derived from MachineFunction and23// contains private Lanai target-specific information for each MachineFunction.24class LanaiMachineFunctionInfo : public MachineFunctionInfo {25 virtual void anchor();26 27 // SRetReturnReg - Lanai ABI require that sret lowering includes28 // returning the value of the returned struct in a register. This field29 // holds the virtual register into which the sret argument is passed.30 Register SRetReturnReg;31 32 // GlobalBaseReg - keeps track of the virtual register initialized for33 // use as the global base register. This is used for PIC in some PIC34 // relocation models.35 Register GlobalBaseReg;36 37 // VarArgsFrameIndex - FrameIndex for start of varargs area.38 int VarArgsFrameIndex;39 40public:41 LanaiMachineFunctionInfo(const Function &F, const TargetSubtargetInfo *STI)42 : VarArgsFrameIndex(0) {}43 MachineFunctionInfo *44 clone(BumpPtrAllocator &Allocator, MachineFunction &DestMF,45 const DenseMap<MachineBasicBlock *, MachineBasicBlock *> &Src2DstMBB)46 const override;47 48 Register getSRetReturnReg() const { return SRetReturnReg; }49 void setSRetReturnReg(Register Reg) { SRetReturnReg = Reg; }50 51 int getVarArgsFrameIndex() const { return VarArgsFrameIndex; }52 void setVarArgsFrameIndex(int Index) { VarArgsFrameIndex = Index; }53};54 55} // namespace llvm56 57#endif // LLVM_LIB_TARGET_LANAI_LANAIMACHINEFUNCTIONINFO_H58