1251607Sdim//==- SystemZMachineFuctionInfo.h - SystemZ machine function info -*- C++ -*-=// 2251607Sdim// 3251607Sdim// The LLVM Compiler Infrastructure 4251607Sdim// 5251607Sdim// This file is distributed under the University of Illinois Open Source 6251607Sdim// License. See LICENSE.TXT for details. 7251607Sdim// 8251607Sdim//===----------------------------------------------------------------------===// 9251607Sdim 10251607Sdim#ifndef SYSTEMZMACHINEFUNCTIONINFO_H 11251607Sdim#define SYSTEMZMACHINEFUNCTIONINFO_H 12251607Sdim 13251607Sdim#include "llvm/CodeGen/MachineFunction.h" 14251607Sdim 15251607Sdimnamespace llvm { 16251607Sdim 17251607Sdimclass SystemZMachineFunctionInfo : public MachineFunctionInfo { 18263509Sdim virtual void anchor(); 19251607Sdim unsigned LowSavedGPR; 20251607Sdim unsigned HighSavedGPR; 21251607Sdim unsigned VarArgsFirstGPR; 22251607Sdim unsigned VarArgsFirstFPR; 23251607Sdim unsigned VarArgsFrameIndex; 24251607Sdim unsigned RegSaveFrameIndex; 25251607Sdim bool ManipulatesSP; 26251607Sdim 27251607Sdimpublic: 28251607Sdim explicit SystemZMachineFunctionInfo(MachineFunction &MF) 29263509Sdim : LowSavedGPR(0), HighSavedGPR(0), VarArgsFirstGPR(0), VarArgsFirstFPR(0), 30263509Sdim VarArgsFrameIndex(0), RegSaveFrameIndex(0), ManipulatesSP(false) {} 31251607Sdim 32251607Sdim // Get and set the first call-saved GPR that should be saved and restored 33251607Sdim // by this function. This is 0 if no GPRs need to be saved or restored. 34251607Sdim unsigned getLowSavedGPR() const { return LowSavedGPR; } 35251607Sdim void setLowSavedGPR(unsigned Reg) { LowSavedGPR = Reg; } 36251607Sdim 37251607Sdim // Get and set the last call-saved GPR that should be saved and restored 38251607Sdim // by this function. 39251607Sdim unsigned getHighSavedGPR() const { return HighSavedGPR; } 40251607Sdim void setHighSavedGPR(unsigned Reg) { HighSavedGPR = Reg; } 41251607Sdim 42251607Sdim // Get and set the number of fixed (as opposed to variable) arguments 43251607Sdim // that are passed in GPRs to this function. 44251607Sdim unsigned getVarArgsFirstGPR() const { return VarArgsFirstGPR; } 45251607Sdim void setVarArgsFirstGPR(unsigned GPR) { VarArgsFirstGPR = GPR; } 46251607Sdim 47251607Sdim // Likewise FPRs. 48251607Sdim unsigned getVarArgsFirstFPR() const { return VarArgsFirstFPR; } 49251607Sdim void setVarArgsFirstFPR(unsigned FPR) { VarArgsFirstFPR = FPR; } 50251607Sdim 51251607Sdim // Get and set the frame index of the first stack vararg. 52251607Sdim unsigned getVarArgsFrameIndex() const { return VarArgsFrameIndex; } 53251607Sdim void setVarArgsFrameIndex(unsigned FI) { VarArgsFrameIndex = FI; } 54251607Sdim 55251607Sdim // Get and set the frame index of the register save area 56251607Sdim // (i.e. the incoming stack pointer). 57251607Sdim unsigned getRegSaveFrameIndex() const { return RegSaveFrameIndex; } 58251607Sdim void setRegSaveFrameIndex(unsigned FI) { RegSaveFrameIndex = FI; } 59251607Sdim 60251607Sdim // Get and set whether the function directly manipulates the stack pointer, 61251607Sdim // e.g. through STACKSAVE or STACKRESTORE. 62251607Sdim bool getManipulatesSP() const { return ManipulatesSP; } 63251607Sdim void setManipulatesSP(bool MSP) { ManipulatesSP = MSP; } 64251607Sdim}; 65251607Sdim 66251607Sdim} // end llvm namespace 67251607Sdim 68251607Sdim#endif 69