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/ADT/Triple.h" 20 #include "llvm/CodeGen/SelectionDAGTargetInfo.h" 21 #include "llvm/CodeGen/TargetSubtargetInfo.h" 22 #include "llvm/IR/DataLayout.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 bool UseSoftMulDiv; 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 bool HasNoFSMULD; 44 bool HasNoFMULS; 45 46 // LEON features 47 bool HasUmacSmac; 48 bool HasLeonCasa; 49 bool HasPWRPSR; 50 bool InsertNOPLoad; 51 bool FixAllFDIVSQRT; 52 bool DetectRoundChange; 53 bool HasLeonCycleCounter; 54 55 SparcInstrInfo InstrInfo; 56 SparcTargetLowering TLInfo; 57 SelectionDAGTargetInfo TSInfo; 58 SparcFrameLowering FrameLowering; 59 60 public: 61 SparcSubtarget(const Triple &TT, const std::string &CPU, 62 const std::string &FS, const TargetMachine &TM, bool is64bit); 63 64 const SparcInstrInfo *getInstrInfo() const override { return &InstrInfo; } 65 const TargetFrameLowering *getFrameLowering() const override { 66 return &FrameLowering; 67 } 68 const SparcRegisterInfo *getRegisterInfo() const override { 69 return &InstrInfo.getRegisterInfo(); 70 } 71 const SparcTargetLowering *getTargetLowering() const override { 72 return &TLInfo; 73 } 74 const SelectionDAGTargetInfo *getSelectionDAGInfo() const override { 75 return &TSInfo; 76 } 77 78 bool enableMachineScheduler() const override; 79 80 bool useSoftMulDiv() const { return UseSoftMulDiv; } 81 bool isV9() const { return IsV9; } 82 bool isLeon() const { return IsLeon; } 83 bool isVIS() const { return IsVIS; } 84 bool isVIS2() const { return IsVIS2; } 85 bool isVIS3() const { return IsVIS3; } 86 bool useDeprecatedV8Instructions() const { return V8DeprecatedInsts; } 87 bool hasHardQuad() const { return HasHardQuad; } 88 bool usePopc() const { return UsePopc; } 89 bool useSoftFloat() const { return UseSoftFloat; } 90 bool hasNoFSMULD() const { return HasNoFSMULD; } 91 bool hasNoFMULS() const { return HasNoFMULS; } 92 93 // Leon options 94 bool hasUmacSmac() const { return HasUmacSmac; } 95 bool hasLeonCasa() const { return HasLeonCasa; } 96 bool hasPWRPSR() const { return HasPWRPSR; } 97 bool insertNOPLoad() const { return InsertNOPLoad; } 98 bool fixAllFDIVSQRT() const { return FixAllFDIVSQRT; } 99 bool detectRoundChange() const { return DetectRoundChange; } 100 bool hasLeonCycleCounter() const { return HasLeonCycleCounter; } 101 102 /// ParseSubtargetFeatures - Parses features string setting specified 103 /// subtarget options. Definition of function is auto generated by tblgen. 104 void ParseSubtargetFeatures(StringRef CPU, StringRef TuneCPU, StringRef FS); 105 SparcSubtarget &initializeSubtargetDependencies(StringRef CPU, StringRef FS); 106 107 bool is64Bit() const { return Is64Bit; } 108 109 /// The 64-bit ABI uses biased stack and frame pointers, so the stack frame 110 /// of the current function is the area from [%sp+BIAS] to [%fp+BIAS]. 111 int64_t getStackPointerBias() const { 112 return is64Bit() ? 2047 : 0; 113 } 114 115 /// Given a actual stack size as determined by FrameInfo, this function 116 /// returns adjusted framesize which includes space for register window 117 /// spills and arguments. 118 int getAdjustedFrameSize(int stackSize) const; 119 120 bool isTargetLinux() const { return TargetTriple.isOSLinux(); } 121 }; 122 123 } // end namespace llvm 124 125 #endif 126