1*0b57cec5SDimitry Andric //===- LanaiMachineFuctionInfo.h - Lanai machine func info -------*- C++ -*-==// 2*0b57cec5SDimitry Andric // 3*0b57cec5SDimitry Andric // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4*0b57cec5SDimitry Andric // See https://llvm.org/LICENSE.txt for license information. 5*0b57cec5SDimitry Andric // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6*0b57cec5SDimitry Andric // 7*0b57cec5SDimitry Andric //===----------------------------------------------------------------------===// 8*0b57cec5SDimitry Andric // 9*0b57cec5SDimitry Andric // This file declares Lanai-specific per-machine-function information. 10*0b57cec5SDimitry Andric // 11*0b57cec5SDimitry Andric //===----------------------------------------------------------------------===// 12*0b57cec5SDimitry Andric 13*0b57cec5SDimitry Andric #ifndef LLVM_LIB_TARGET_LANAI_LANAIMACHINEFUNCTIONINFO_H 14*0b57cec5SDimitry Andric #define LLVM_LIB_TARGET_LANAI_LANAIMACHINEFUNCTIONINFO_H 15*0b57cec5SDimitry Andric 16*0b57cec5SDimitry Andric #include "LanaiRegisterInfo.h" 17*0b57cec5SDimitry Andric #include "llvm/CodeGen/MachineFunction.h" 18*0b57cec5SDimitry Andric #include "llvm/CodeGen/MachineRegisterInfo.h" 19*0b57cec5SDimitry Andric 20*0b57cec5SDimitry Andric namespace llvm { 21*0b57cec5SDimitry Andric 22*0b57cec5SDimitry Andric // LanaiMachineFunctionInfo - This class is derived from MachineFunction and 23*0b57cec5SDimitry Andric // contains private Lanai target-specific information for each MachineFunction. 24*0b57cec5SDimitry Andric class LanaiMachineFunctionInfo : public MachineFunctionInfo { 25*0b57cec5SDimitry Andric virtual void anchor(); 26*0b57cec5SDimitry Andric 27*0b57cec5SDimitry Andric MachineFunction &MF; 28*0b57cec5SDimitry Andric 29*0b57cec5SDimitry Andric // SRetReturnReg - Lanai ABI require that sret lowering includes 30*0b57cec5SDimitry Andric // returning the value of the returned struct in a register. This field 31*0b57cec5SDimitry Andric // holds the virtual register into which the sret argument is passed. 32*0b57cec5SDimitry Andric unsigned SRetReturnReg; 33*0b57cec5SDimitry Andric 34*0b57cec5SDimitry Andric // GlobalBaseReg - keeps track of the virtual register initialized for 35*0b57cec5SDimitry Andric // use as the global base register. This is used for PIC in some PIC 36*0b57cec5SDimitry Andric // relocation models. 37*0b57cec5SDimitry Andric unsigned GlobalBaseReg; 38*0b57cec5SDimitry Andric 39*0b57cec5SDimitry Andric // VarArgsFrameIndex - FrameIndex for start of varargs area. 40*0b57cec5SDimitry Andric int VarArgsFrameIndex; 41*0b57cec5SDimitry Andric 42*0b57cec5SDimitry Andric public: 43*0b57cec5SDimitry Andric explicit LanaiMachineFunctionInfo(MachineFunction &MF) 44*0b57cec5SDimitry Andric : MF(MF), SRetReturnReg(0), GlobalBaseReg(0), VarArgsFrameIndex(0) {} 45*0b57cec5SDimitry Andric 46*0b57cec5SDimitry Andric unsigned getSRetReturnReg() const { return SRetReturnReg; } 47*0b57cec5SDimitry Andric void setSRetReturnReg(unsigned Reg) { SRetReturnReg = Reg; } 48*0b57cec5SDimitry Andric 49*0b57cec5SDimitry Andric unsigned getGlobalBaseReg(); 50*0b57cec5SDimitry Andric 51*0b57cec5SDimitry Andric int getVarArgsFrameIndex() const { return VarArgsFrameIndex; } 52*0b57cec5SDimitry Andric void setVarArgsFrameIndex(int Index) { VarArgsFrameIndex = Index; } 53*0b57cec5SDimitry Andric }; 54*0b57cec5SDimitry Andric 55*0b57cec5SDimitry Andric } // namespace llvm 56*0b57cec5SDimitry Andric 57*0b57cec5SDimitry Andric #endif // LLVM_LIB_TARGET_LANAI_LANAIMACHINEFUNCTIONINFO_H 58