1 //=- RISCVMachineFunctionInfo.h - RISCV machine function 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-exception 6 // 7 //===----------------------------------------------------------------------===// 8 // 9 // This file declares RISCV-specific per-machine-function information. 10 // 11 //===----------------------------------------------------------------------===// 12 13 #ifndef LLVM_LIB_TARGET_RISCV_RISCVMACHINEFUNCTIONINFO_H 14 #define LLVM_LIB_TARGET_RISCV_RISCVMACHINEFUNCTIONINFO_H 15 16 #include "llvm/CodeGen/MachineFrameInfo.h" 17 #include "llvm/CodeGen/MachineFunction.h" 18 19 namespace llvm { 20 21 /// RISCVMachineFunctionInfo - This class is derived from MachineFunctionInfo 22 /// and contains private RISCV-specific information for each MachineFunction. 23 class RISCVMachineFunctionInfo : public MachineFunctionInfo { 24 private: 25 MachineFunction &MF; 26 /// FrameIndex for start of varargs area 27 int VarArgsFrameIndex = 0; 28 /// Size of the save area used for varargs 29 int VarArgsSaveSize = 0; 30 /// FrameIndex used for transferring values between 64-bit FPRs and a pair 31 /// of 32-bit GPRs via the stack. 32 int MoveF64FrameIndex = -1; 33 34 public: 35 RISCVMachineFunctionInfo(MachineFunction &MF) : MF(MF) {} 36 37 int getVarArgsFrameIndex() const { return VarArgsFrameIndex; } 38 void setVarArgsFrameIndex(int Index) { VarArgsFrameIndex = Index; } 39 40 unsigned getVarArgsSaveSize() const { return VarArgsSaveSize; } 41 void setVarArgsSaveSize(int Size) { VarArgsSaveSize = Size; } 42 43 int getMoveF64FrameIndex() { 44 if (MoveF64FrameIndex == -1) 45 MoveF64FrameIndex = MF.getFrameInfo().CreateStackObject(8, 8, false); 46 return MoveF64FrameIndex; 47 } 48 }; 49 50 } // end namespace llvm 51 52 #endif // LLVM_LIB_TARGET_RISCV_RISCVMACHINEFUNCTIONINFO_H 53