1 //=- RISCVMachineFunctionInfo.h - RISCV machine function info -----*- C++ -*-=// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 // 10 // This file declares RISCV-specific per-machine-function information. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #ifndef LLVM_LIB_TARGET_RISCV_RISCVMACHINEFUNCTIONINFO_H 15 #define LLVM_LIB_TARGET_RISCV_RISCVMACHINEFUNCTIONINFO_H 16 17 #include "llvm/CodeGen/MachineFrameInfo.h" 18 #include "llvm/CodeGen/MachineFunction.h" 19 20 namespace llvm { 21 22 /// RISCVMachineFunctionInfo - This class is derived from MachineFunctionInfo 23 /// and contains private RISCV-specific information for each MachineFunction. 24 class RISCVMachineFunctionInfo : public MachineFunctionInfo { 25 private: 26 MachineFunction &MF; 27 /// FrameIndex for start of varargs area 28 int VarArgsFrameIndex = 0; 29 /// Size of the save area used for varargs 30 int VarArgsSaveSize = 0; 31 /// FrameIndex used for transferring values between 64-bit FPRs and a pair 32 /// of 32-bit GPRs via the stack. 33 int MoveF64FrameIndex = -1; 34 35 public: 36 // RISCVMachineFunctionInfo() = default; 37 38 RISCVMachineFunctionInfo(MachineFunction &MF) : MF(MF) {} 39 40 int getVarArgsFrameIndex() const { return VarArgsFrameIndex; } 41 void setVarArgsFrameIndex(int Index) { VarArgsFrameIndex = Index; } 42 43 unsigned getVarArgsSaveSize() const { return VarArgsSaveSize; } 44 void setVarArgsSaveSize(int Size) { VarArgsSaveSize = Size; } 45 46 int getMoveF64FrameIndex() { 47 if (MoveF64FrameIndex == -1) 48 MoveF64FrameIndex = MF.getFrameInfo().CreateStackObject(8, 8, false); 49 return MoveF64FrameIndex; 50 } 51 }; 52 53 } // end namespace llvm 54 55 #endif // LLVM_LIB_TARGET_RISCV_RISCVMACHINEFUNCTIONINFO_H 56
