1 //==- SystemZMachineFuctionInfo.h - SystemZ 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 #ifndef SYSTEMZMACHINEFUNCTIONINFO_H 11 #define SYSTEMZMACHINEFUNCTIONINFO_H 12 13 #include "llvm/CodeGen/MachineFunction.h" 14 15 namespace llvm { 16 17 class SystemZMachineFunctionInfo : public MachineFunctionInfo { 18 unsigned LowSavedGPR; 19 unsigned HighSavedGPR; 20 unsigned VarArgsFirstGPR; 21 unsigned VarArgsFirstFPR; 22 unsigned VarArgsFrameIndex; 23 unsigned RegSaveFrameIndex; 24 bool ManipulatesSP; 25 26 public: 27 explicit SystemZMachineFunctionInfo(MachineFunction &MF) 28 : LowSavedGPR(0), HighSavedGPR(0), VarArgsFirstGPR(0), VarArgsFirstFPR(0), 29 VarArgsFrameIndex(0), RegSaveFrameIndex(0), ManipulatesSP(false) {} 30 31 // Get and set the first call-saved GPR that should be saved and restored 32 // by this function. This is 0 if no GPRs need to be saved or restored. 33 unsigned getLowSavedGPR() const { return LowSavedGPR; } 34 void setLowSavedGPR(unsigned Reg) { LowSavedGPR = Reg; } 35 36 // Get and set the last call-saved GPR that should be saved and restored 37 // by this function. 38 unsigned getHighSavedGPR() const { return HighSavedGPR; } 39 void setHighSavedGPR(unsigned Reg) { HighSavedGPR = Reg; } 40 41 // Get and set the number of fixed (as opposed to variable) arguments 42 // that are passed in GPRs to this function. 43 unsigned getVarArgsFirstGPR() const { return VarArgsFirstGPR; } 44 void setVarArgsFirstGPR(unsigned GPR) { VarArgsFirstGPR = GPR; } 45 46 // Likewise FPRs. 47 unsigned getVarArgsFirstFPR() const { return VarArgsFirstFPR; } 48 void setVarArgsFirstFPR(unsigned FPR) { VarArgsFirstFPR = FPR; } 49 50 // Get and set the frame index of the first stack vararg. 51 unsigned getVarArgsFrameIndex() const { return VarArgsFrameIndex; } 52 void setVarArgsFrameIndex(unsigned FI) { VarArgsFrameIndex = FI; } 53 54 // Get and set the frame index of the register save area 55 // (i.e. the incoming stack pointer). 56 unsigned getRegSaveFrameIndex() const { return RegSaveFrameIndex; } 57 void setRegSaveFrameIndex(unsigned FI) { RegSaveFrameIndex = FI; } 58 59 // Get and set whether the function directly manipulates the stack pointer, 60 // e.g. through STACKSAVE or STACKRESTORE. 61 bool getManipulatesSP() const { return ManipulatesSP; } 62 void setManipulatesSP(bool MSP) { ManipulatesSP = MSP; } 63 }; 64 65 } // end llvm namespace 66 67 #endif 68
