1 //===-- SparcSubtarget.h - Define Subtarget for the SPARC -------*- 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 // This file declares the SPARC specific subclass of TargetSubtargetInfo. 10 // 11 //===----------------------------------------------------------------------===// 12 13 #ifndef LLVM_LIB_TARGET_SPARC_SPARCSUBTARGET_H 14 #define LLVM_LIB_TARGET_SPARC_SPARCSUBTARGET_H 15 16 #include "SparcFrameLowering.h" 17 #include "SparcISelLowering.h" 18 #include "SparcInstrInfo.h" 19 #include "llvm/CodeGen/SelectionDAGTargetInfo.h" 20 #include "llvm/CodeGen/TargetSubtargetInfo.h" 21 #include "llvm/IR/DataLayout.h" 22 #include "llvm/TargetParser/Triple.h" 23 #include <string> 24 25 #define GET_SUBTARGETINFO_HEADER 26 #include "SparcGenSubtargetInfo.inc" 27 28 namespace llvm { 29 class StringRef; 30 31 class SparcSubtarget : public SparcGenSubtargetInfo { 32 Triple TargetTriple; 33 virtual void anchor(); 34 35 bool Is64Bit; 36 37 #define GET_SUBTARGETINFO_MACRO(ATTRIBUTE, DEFAULT, GETTER) \ 38 bool ATTRIBUTE = DEFAULT; 39 #include "SparcGenSubtargetInfo.inc" 40 41 SparcInstrInfo InstrInfo; 42 SparcTargetLowering TLInfo; 43 SelectionDAGTargetInfo TSInfo; 44 SparcFrameLowering FrameLowering; 45 46 public: 47 SparcSubtarget(const Triple &TT, const std::string &CPU, 48 const std::string &FS, const TargetMachine &TM, bool is64bit); 49 50 const SparcInstrInfo *getInstrInfo() const override { return &InstrInfo; } 51 const TargetFrameLowering *getFrameLowering() const override { 52 return &FrameLowering; 53 } 54 const SparcRegisterInfo *getRegisterInfo() const override { 55 return &InstrInfo.getRegisterInfo(); 56 } 57 const SparcTargetLowering *getTargetLowering() const override { 58 return &TLInfo; 59 } 60 const SelectionDAGTargetInfo *getSelectionDAGInfo() const override { 61 return &TSInfo; 62 } 63 64 bool enableMachineScheduler() const override; 65 66 #define GET_SUBTARGETINFO_MACRO(ATTRIBUTE, DEFAULT, GETTER) \ 67 bool GETTER() const { return ATTRIBUTE; } 68 #include "SparcGenSubtargetInfo.inc" 69 70 /// ParseSubtargetFeatures - Parses features string setting specified 71 /// subtarget options. Definition of function is auto generated by tblgen. 72 void ParseSubtargetFeatures(StringRef CPU, StringRef TuneCPU, StringRef FS); 73 SparcSubtarget &initializeSubtargetDependencies(StringRef CPU, StringRef FS); 74 75 bool is64Bit() const { return Is64Bit; } 76 77 /// The 64-bit ABI uses biased stack and frame pointers, so the stack frame 78 /// of the current function is the area from [%sp+BIAS] to [%fp+BIAS]. 79 int64_t getStackPointerBias() const { 80 return is64Bit() ? 2047 : 0; 81 } 82 83 /// Given a actual stack size as determined by FrameInfo, this function 84 /// returns adjusted framesize which includes space for register window 85 /// spills and arguments. 86 int getAdjustedFrameSize(int stackSize) const; 87 88 bool isTargetLinux() const { return TargetTriple.isOSLinux(); } 89 }; 90 91 } // end namespace llvm 92 93 #endif 94