SparcSubtarget.h revision 276479
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 SPARC_SUBTARGET_H 15#define SPARC_SUBTARGET_H 16 17#include "SparcFrameLowering.h" 18#include "SparcInstrInfo.h" 19#include "SparcISelLowering.h" 20#include "SparcJITInfo.h" 21#include "SparcSelectionDAGInfo.h" 22#include "llvm/IR/DataLayout.h" 23#include "llvm/Target/TargetFrameLowering.h" 24#include "llvm/Target/TargetSubtargetInfo.h" 25#include <string> 26 27#define GET_SUBTARGETINFO_HEADER 28#include "SparcGenSubtargetInfo.inc" 29 30namespace llvm { 31class StringRef; 32 33class SparcSubtarget : public SparcGenSubtargetInfo { 34 virtual void anchor(); 35 bool IsV9; 36 bool V8DeprecatedInsts; 37 bool IsVIS, IsVIS2, IsVIS3; 38 bool Is64Bit; 39 bool HasHardQuad; 40 bool UsePopc; 41 const DataLayout DL; // Calculates type size & alignment 42 SparcInstrInfo InstrInfo; 43 SparcTargetLowering TLInfo; 44 SparcSelectionDAGInfo TSInfo; 45 SparcFrameLowering FrameLowering; 46 SparcJITInfo JITInfo; 47 48public: 49 SparcSubtarget(const std::string &TT, const std::string &CPU, 50 const std::string &FS, TargetMachine &TM, bool is64bit); 51 52 const SparcInstrInfo *getInstrInfo() const { return &InstrInfo; } 53 const TargetFrameLowering *getFrameLowering() const { return &FrameLowering; } 54 const SparcRegisterInfo *getRegisterInfo() const { 55 return &InstrInfo.getRegisterInfo(); 56 } 57 const SparcTargetLowering *getTargetLowering() const { return &TLInfo; } 58 const SparcSelectionDAGInfo *getSelectionDAGInfo() const { return &TSInfo; } 59 SparcJITInfo *getJITInfo() { return &JITInfo; } 60 const DataLayout *getDataLayout() const { return &DL; } 61 62 bool isV9() const { return IsV9; } 63 bool isVIS() const { return IsVIS; } 64 bool isVIS2() const { return IsVIS2; } 65 bool isVIS3() const { return IsVIS3; } 66 bool useDeprecatedV8Instructions() const { return V8DeprecatedInsts; } 67 bool hasHardQuad() const { return HasHardQuad; } 68 bool usePopc() const { return UsePopc; } 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 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}; 89 90} // end namespace llvm 91 92#endif 93