lib/Target/Sparc/SparcSubtarget.h

   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/CodeGen/SelectionDAGTargetInfo.h"
  20 #include "llvm/CodeGen/TargetFrameLowering.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 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