1 //===-- SparcSubtarget.h - Define Subtarget for the SPARC -------*- 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 // This file declares the SPARC specific subclass of TargetSubtargetInfo. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #ifndef LLVM_LIB_TARGET_SPARC_SPARCSUBTARGET_H 15 #define LLVM_LIB_TARGET_SPARC_SPARCSUBTARGET_H 16 17 #include "SparcFrameLowering.h" 18 #include "SparcISelLowering.h" 19 #include "SparcInstrInfo.h" 20 #include "llvm/CodeGen/SelectionDAGTargetInfo.h" 21 #include "llvm/IR/DataLayout.h" 22 #include "llvm/Target/TargetFrameLowering.h" 23 #include "llvm/Target/TargetSubtargetInfo.h" 24 #include <string> 25 26 #define GET_SUBTARGETINFO_HEADER 27 #include "SparcGenSubtargetInfo.inc" 28 29 namespace llvm { 30 class StringRef; 31 32 class SparcSubtarget : public SparcGenSubtargetInfo { 33 Triple TargetTriple; 34 virtual void anchor(); 35 bool IsV9; 36 bool IsLeon; 37 bool V8DeprecatedInsts; 38 bool IsVIS, IsVIS2, IsVIS3; 39 bool Is64Bit; 40 bool HasHardQuad; 41 bool UsePopc; 42 bool UseSoftFloat; 43 44 // LEON features 45 bool HasUmacSmac; 46 bool HasLeonCasa; 47 bool InsertNOPLoad; 48 bool FixFSMULD; 49 bool ReplaceFMULS; 50 bool FixAllFDIVSQRT; 51 bool UseSoftFpu; 52 bool PerformSDIVReplace; 53 bool FixCallImmediates; 54 bool IgnoreZeroFlag; 55 bool InsertNOPDoublePrecision; 56 bool PreventRoundChange; 57 bool FlushCacheLineSWAP; 58 bool InsertNOPsLoadStore; 59 60 SparcInstrInfo InstrInfo; 61 SparcTargetLowering TLInfo; 62 SelectionDAGTargetInfo TSInfo; 63 SparcFrameLowering FrameLowering; 64 65 public: 66 SparcSubtarget(const Triple &TT, const std::string &CPU, 67 const std::string &FS, const TargetMachine &TM, bool is64bit); 68 getInstrInfo()69 const SparcInstrInfo *getInstrInfo() const override { return &InstrInfo; } getFrameLowering()70 const TargetFrameLowering *getFrameLowering() const override { 71 return &FrameLowering; 72 } getRegisterInfo()73 const SparcRegisterInfo *getRegisterInfo() const override { 74 return &InstrInfo.getRegisterInfo(); 75 } getTargetLowering()76 const SparcTargetLowering *getTargetLowering() const override { 77 return &TLInfo; 78 } getSelectionDAGInfo()79 const SelectionDAGTargetInfo *getSelectionDAGInfo() const override { 80 return &TSInfo; 81 } 82 83 bool enableMachineScheduler() const override; 84 isV9()85 bool isV9() const { return IsV9; } isLeon()86 bool isLeon() const { return IsLeon; } isVIS()87 bool isVIS() const { return IsVIS; } isVIS2()88 bool isVIS2() const { return IsVIS2; } isVIS3()89 bool isVIS3() const { return IsVIS3; } useDeprecatedV8Instructions()90 bool useDeprecatedV8Instructions() const { return V8DeprecatedInsts; } hasHardQuad()91 bool hasHardQuad() const { return HasHardQuad; } usePopc()92 bool usePopc() const { return UsePopc; } useSoftFloat()93 bool useSoftFloat() const { return UseSoftFloat; } 94 95 // Leon options useSoftFpu()96 bool useSoftFpu() const { return UseSoftFpu; } hasLeonCasa()97 bool hasLeonCasa() const { return HasLeonCasa; } hasUmacSmac()98 bool hasUmacSmac() const { return HasUmacSmac; } performSDIVReplace()99 bool performSDIVReplace() const { return PerformSDIVReplace; } fixCallImmediates()100 bool fixCallImmediates() const { return FixCallImmediates; } ignoreZeroFlag()101 bool ignoreZeroFlag() const { return IgnoreZeroFlag; } insertNOPDoublePrecision()102 bool insertNOPDoublePrecision() const { return InsertNOPDoublePrecision; } fixFSMULD()103 bool fixFSMULD() const { return FixFSMULD; } replaceFMULS()104 bool replaceFMULS() const { return ReplaceFMULS; } preventRoundChange()105 bool preventRoundChange() const { return PreventRoundChange; } fixAllFDIVSQRT()106 bool fixAllFDIVSQRT() const { return FixAllFDIVSQRT; } flushCacheLineSWAP()107 bool flushCacheLineSWAP() const { return FlushCacheLineSWAP; } insertNOPsLoadStore()108 bool insertNOPsLoadStore() const { return InsertNOPsLoadStore; } insertNOPLoad()109 bool insertNOPLoad() const { return InsertNOPLoad; } 110 111 /// ParseSubtargetFeatures - Parses features string setting specified 112 /// subtarget options. Definition of function is auto generated by tblgen. 113 void ParseSubtargetFeatures(StringRef CPU, StringRef FS); 114 SparcSubtarget &initializeSubtargetDependencies(StringRef CPU, StringRef FS); 115 is64Bit()116 bool is64Bit() const { return Is64Bit; } 117 118 /// The 64-bit ABI uses biased stack and frame pointers, so the stack frame 119 /// of the current function is the area from [%sp+BIAS] to [%fp+BIAS]. getStackPointerBias()120 int64_t getStackPointerBias() const { 121 return is64Bit() ? 2047 : 0; 122 } 123 124 /// Given a actual stack size as determined by FrameInfo, this function 125 /// returns adjusted framesize which includes space for register window 126 /// spills and arguments. 127 int getAdjustedFrameSize(int stackSize) const; 128 isTargetLinux()129 bool isTargetLinux() const { return TargetTriple.isOSLinux(); } 130 }; 131 132 } // end namespace llvm 133 134 #endif 135