llvm/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/TargetSubtargetInfo.h"
  21 #include "llvm/IR/DataLayout.h"
  22 #include "llvm/TargetParser/Triple.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
  35   bool Is64Bit;
  36
  37 #define GET_SUBTARGETINFO_MACRO(ATTRIBUTE, DEFAULT, GETTER)                    \
  38   bool ATTRIBUTE = DEFAULT;
  39 #include "SparcGenSubtargetInfo.inc"
  40
  41   SparcInstrInfo InstrInfo;
  42   SparcTargetLowering TLInfo;
  43   SelectionDAGTargetInfo TSInfo;
  44   SparcFrameLowering FrameLowering;
  45
  46 public:
  47   SparcSubtarget(const Triple &TT, const std::string &CPU,
  48                  const std::string &FS, const 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 SelectionDAGTargetInfo *getSelectionDAGInfo() const override {
  61     return &TSInfo;
  62   }
  63
  64   bool enableMachineScheduler() const override;
  65
  66 #define GET_SUBTARGETINFO_MACRO(ATTRIBUTE, DEFAULT, GETTER)                    \
  67   bool GETTER() const { return ATTRIBUTE; }
  68 #include "SparcGenSubtargetInfo.inc"
  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 TuneCPU, 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   bool isTargetLinux() const { return TargetTriple.isOSLinux(); }
  89 };
  90
  91 } // end namespace llvm
  92
  93 #endif