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
28namespace llvm {
29class StringRef;
30
31class 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
60public:
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
126