1 //=== SystemZMachineFunctionInfo.h - SystemZ machine function info -*- C++ -*-// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #ifndef LLVM_LIB_TARGET_SYSTEMZ_SYSTEMZMACHINEFUNCTIONINFO_H 10 #define LLVM_LIB_TARGET_SYSTEMZ_SYSTEMZMACHINEFUNCTIONINFO_H 11 12 #include "llvm/CodeGen/MachineFunction.h" 13 14 namespace llvm { 15 16 class SystemZMachineFunctionInfo : public MachineFunctionInfo { 17 virtual void anchor(); 18 unsigned LowSavedGPR; 19 unsigned HighSavedGPR; 20 unsigned VarArgsFirstGPR; 21 unsigned VarArgsFirstFPR; 22 unsigned VarArgsFrameIndex; 23 unsigned RegSaveFrameIndex; 24 int FramePointerSaveIndex; 25 bool ManipulatesSP; 26 unsigned NumLocalDynamics; 27 28 public: 29 explicit SystemZMachineFunctionInfo(MachineFunction &MF) 30 : LowSavedGPR(0), HighSavedGPR(0), VarArgsFirstGPR(0), VarArgsFirstFPR(0), 31 VarArgsFrameIndex(0), RegSaveFrameIndex(0), FramePointerSaveIndex(0), 32 ManipulatesSP(false), 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. 36 unsigned getLowSavedGPR() const { return LowSavedGPR; } 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. 41 unsigned getHighSavedGPR() const { return HighSavedGPR; } 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. 46 unsigned getVarArgsFirstGPR() const { return VarArgsFirstGPR; } 47 void setVarArgsFirstGPR(unsigned GPR) { VarArgsFirstGPR = GPR; } 48 49 // Likewise FPRs. 50 unsigned getVarArgsFirstFPR() const { return VarArgsFirstFPR; } 51 void setVarArgsFirstFPR(unsigned FPR) { VarArgsFirstFPR = FPR; } 52 53 // Get and set the frame index of the first stack vararg. 54 unsigned getVarArgsFrameIndex() const { return VarArgsFrameIndex; } 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). 59 unsigned getRegSaveFrameIndex() const { return RegSaveFrameIndex; } 60 void setRegSaveFrameIndex(unsigned FI) { RegSaveFrameIndex = FI; } 61 62 // Get and set the frame index of where the old frame pointer is stored. 63 int getFramePointerSaveIndex() const { return FramePointerSaveIndex; } 64 void setFramePointerSaveIndex(int Idx) { FramePointerSaveIndex = Idx; } 65 66 // Get and set whether the function directly manipulates the stack pointer, 67 // e.g. through STACKSAVE or STACKRESTORE. 68 bool getManipulatesSP() const { return ManipulatesSP; } 69 void setManipulatesSP(bool MSP) { ManipulatesSP = MSP; } 70 71 // Count number of local-dynamic TLS symbols used. 72 unsigned getNumLocalDynamicTLSAccesses() const { return NumLocalDynamics; } 73 void incNumLocalDynamicTLSAccesses() { ++NumLocalDynamics; } 74 }; 75 76 } // end namespace llvm 77 78 #endif 79