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