src/llvm/lib/Target/Sparc/SparcSubtarget.h

   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 "SparcSelectionDAGInfo.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   virtual void anchor();
  34   bool IsV9;
  35   bool V8DeprecatedInsts;
  36   bool IsVIS, IsVIS2, IsVIS3;
  37   bool Is64Bit;
  38   bool HasHardQuad;
  39   bool UsePopc;
  40   const DataLayout DL;       // Calculates type size & alignment
  41   SparcInstrInfo InstrInfo;
  42   SparcTargetLowering TLInfo;
  43   SparcSelectionDAGInfo TSInfo;
  44   SparcFrameLowering FrameLowering;
  45
  46 public:
  47   SparcSubtarget(const std::string &TT, const std::string &CPU,
  48                  const std::string &FS, 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 SparcSelectionDAGInfo *getSelectionDAGInfo() const override {
  61     return &TSInfo;
  62   }
  63   const DataLayout *getDataLayout() const override { return &DL; }
  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
  93 } // end namespace llvm
  94
  95 #endif