1 //=== SystemZMachineFunctionInfo.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 LLVM_LIB_TARGET_SYSTEMZ_SYSTEMZMACHINEFUNCTIONINFO_H 11 #define LLVM_LIB_TARGET_SYSTEMZ_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 int FramePointerSaveIndex; 26 bool ManipulatesSP; 27 unsigned NumLocalDynamics; 28 29 public: SystemZMachineFunctionInfo(MachineFunction & MF)30 explicit SystemZMachineFunctionInfo(MachineFunction &MF) 31 : LowSavedGPR(0), HighSavedGPR(0), VarArgsFirstGPR(0), VarArgsFirstFPR(0), 32 VarArgsFrameIndex(0), RegSaveFrameIndex(0), FramePointerSaveIndex(0), 33 ManipulatesSP(false), NumLocalDynamics(0) {} 34 35 // Get and set the first call-saved GPR that should be saved and restored 36 // by this function. This is 0 if no GPRs need to be saved or restored. getLowSavedGPR()37 unsigned getLowSavedGPR() const { return LowSavedGPR; } setLowSavedGPR(unsigned Reg)38 void setLowSavedGPR(unsigned Reg) { LowSavedGPR = Reg; } 39 40 // Get and set the last call-saved GPR that should be saved and restored 41 // by this function. getHighSavedGPR()42 unsigned getHighSavedGPR() const { return HighSavedGPR; } setHighSavedGPR(unsigned Reg)43 void setHighSavedGPR(unsigned Reg) { HighSavedGPR = Reg; } 44 45 // Get and set the number of fixed (as opposed to variable) arguments 46 // that are passed in GPRs to this function. getVarArgsFirstGPR()47 unsigned getVarArgsFirstGPR() const { return VarArgsFirstGPR; } setVarArgsFirstGPR(unsigned GPR)48 void setVarArgsFirstGPR(unsigned GPR) { VarArgsFirstGPR = GPR; } 49 50 // Likewise FPRs. getVarArgsFirstFPR()51 unsigned getVarArgsFirstFPR() const { return VarArgsFirstFPR; } setVarArgsFirstFPR(unsigned FPR)52 void setVarArgsFirstFPR(unsigned FPR) { VarArgsFirstFPR = FPR; } 53 54 // Get and set the frame index of the first stack vararg. getVarArgsFrameIndex()55 unsigned getVarArgsFrameIndex() const { return VarArgsFrameIndex; } setVarArgsFrameIndex(unsigned FI)56 void setVarArgsFrameIndex(unsigned FI) { VarArgsFrameIndex = FI; } 57 58 // Get and set the frame index of the register save area 59 // (i.e. the incoming stack pointer). getRegSaveFrameIndex()60 unsigned getRegSaveFrameIndex() const { return RegSaveFrameIndex; } setRegSaveFrameIndex(unsigned FI)61 void setRegSaveFrameIndex(unsigned FI) { RegSaveFrameIndex = FI; } 62 63 // Get and set the frame index of where the old frame pointer is stored. getFramePointerSaveIndex()64 int getFramePointerSaveIndex() const { return FramePointerSaveIndex; } setFramePointerSaveIndex(int Idx)65 void setFramePointerSaveIndex(int Idx) { FramePointerSaveIndex = Idx; } 66 67 // Get and set whether the function directly manipulates the stack pointer, 68 // e.g. through STACKSAVE or STACKRESTORE. getManipulatesSP()69 bool getManipulatesSP() const { return ManipulatesSP; } setManipulatesSP(bool MSP)70 void setManipulatesSP(bool MSP) { ManipulatesSP = MSP; } 71 72 // Count number of local-dynamic TLS symbols used. getNumLocalDynamicTLSAccesses()73 unsigned getNumLocalDynamicTLSAccesses() const { return NumLocalDynamics; } incNumLocalDynamicTLSAccesses()74 void incNumLocalDynamicTLSAccesses() { ++NumLocalDynamics; } 75 }; 76 77 } // end namespace llvm 78 79 #endif 80