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 "SparcInstrInfo.h" 19 #include "SparcISelLowering.h" 20 #include "llvm/IR/DataLayout.h" 21 #include "llvm/Target/TargetFrameLowering.h" 22 #include "llvm/Target/TargetSelectionDAGInfo.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 virtual void anchor(); 34 bool IsV9; 35 bool V8DeprecatedInsts; 36 bool IsVIS, IsVIS2, IsVIS3; 37 bool Is64Bit; 38 bool HasHardQuad; 39 bool UsePopc; 40 SparcInstrInfo InstrInfo; 41 SparcTargetLowering TLInfo; 42 TargetSelectionDAGInfo TSInfo; 43 SparcFrameLowering FrameLowering; 44 45 public: 46 SparcSubtarget(const Triple &TT, const std::string &CPU, 47 const std::string &FS, TargetMachine &TM, bool is64bit); 48 49 const SparcInstrInfo *getInstrInfo() const override { return &InstrInfo; } 50 const TargetFrameLowering *getFrameLowering() const override { 51 return &FrameLowering; 52 } 53 const SparcRegisterInfo *getRegisterInfo() const override { 54 return &InstrInfo.getRegisterInfo(); 55 } 56 const SparcTargetLowering *getTargetLowering() const override { 57 return &TLInfo; 58 } 59 const TargetSelectionDAGInfo *getSelectionDAGInfo() const override { 60 return &TSInfo; 61 } 62 63 bool enableMachineScheduler() const override; 64 65 bool isV9() const { return IsV9; } 66 bool isVIS() const { return IsVIS; } 67 bool isVIS2() const { return IsVIS2; } 68 bool isVIS3() const { return IsVIS3; } 69 bool useDeprecatedV8Instructions() const { return V8DeprecatedInsts; } 70 bool hasHardQuad() const { return HasHardQuad; } 71 bool usePopc() const { return UsePopc; } 72 73 /// ParseSubtargetFeatures - Parses features string setting specified 74 /// subtarget options. Definition of function is auto generated by tblgen. 75 void ParseSubtargetFeatures(StringRef CPU, StringRef FS); 76 SparcSubtarget &initializeSubtargetDependencies(StringRef CPU, StringRef FS); 77 78 bool is64Bit() const { return Is64Bit; } 79 80 /// The 64-bit ABI uses biased stack and frame pointers, so the stack frame 81 /// of the current function is the area from [%sp+BIAS] to [%fp+BIAS]. 82 int64_t getStackPointerBias() const { 83 return is64Bit() ? 2047 : 0; 84 } 85 86 /// Given a actual stack size as determined by FrameInfo, this function 87 /// returns adjusted framesize which includes space for register window 88 /// spills and arguments. 89 int getAdjustedFrameSize(int stackSize) const; 90 }; 91 92 } // end namespace llvm 93 94 #endif 95
