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 virtual void anchor(); 19 unsigned LowSavedGPR; 20 unsigned HighSavedGPR; 21 unsigned VarArgsFirstGPR; 22 unsigned VarArgsFirstFPR; 23 unsigned VarArgsFrameIndex; 24 unsigned RegSaveFrameIndex; 25 bool ManipulatesSP; 26 27 public: 28 explicit SystemZMachineFunctionInfo(MachineFunction &MF) 29 : LowSavedGPR(0), HighSavedGPR(0), VarArgsFirstGPR(0), VarArgsFirstFPR(0), 30 VarArgsFrameIndex(0), RegSaveFrameIndex(0), ManipulatesSP(false) {} 31 32 // Get and set the first call-saved GPR that should be saved and restored 33 // by this function. This is 0 if no GPRs need to be saved or restored. 34 unsigned getLowSavedGPR() const { return LowSavedGPR; } 35 void setLowSavedGPR(unsigned Reg) { LowSavedGPR = Reg; } 36 37 // Get and set the last call-saved GPR that should be saved and restored 38 // by this function. 39 unsigned getHighSavedGPR() const { return HighSavedGPR; } 40 void setHighSavedGPR(unsigned Reg) { HighSavedGPR = Reg; } 41 42 // Get and set the number of fixed (as opposed to variable) arguments 43 // that are passed in GPRs to this function. 44 unsigned getVarArgsFirstGPR() const { return VarArgsFirstGPR; } 45 void setVarArgsFirstGPR(unsigned GPR) { VarArgsFirstGPR = GPR; } 46 47 // Likewise FPRs. 48 unsigned getVarArgsFirstFPR() const { return VarArgsFirstFPR; } 49 void setVarArgsFirstFPR(unsigned FPR) { VarArgsFirstFPR = FPR; } 50 51 // Get and set the frame index of the first stack vararg. 52 unsigned getVarArgsFrameIndex() const { return VarArgsFrameIndex; } 53 void setVarArgsFrameIndex(unsigned FI) { VarArgsFrameIndex = FI; } 54 55 // Get and set the frame index of the register save area 56 // (i.e. the incoming stack pointer). 57 unsigned getRegSaveFrameIndex() const { return RegSaveFrameIndex; } 58 void setRegSaveFrameIndex(unsigned FI) { RegSaveFrameIndex = FI; } 59 60 // Get and set whether the function directly manipulates the stack pointer, 61 // e.g. through STACKSAVE or STACKRESTORE. 62 bool getManipulatesSP() const { return ManipulatesSP; } 63 void setManipulatesSP(bool MSP) { ManipulatesSP = MSP; } 64 }; 65 66 } // end namespace llvm 67 68 #endif 69
