LLVM  9.0.0svn
SparcSubtarget.h
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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"
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 
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;
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.
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
bool hasNoFSMULD() const
bool usePopc() const
SparcSubtarget & initializeSubtargetDependencies(StringRef CPU, StringRef FS)
This class represents lattice values for constants.
Definition: AllocatorList.h:23
SparcSubtarget(const Triple &TT, const std::string &CPU, const std::string &FS, const TargetMachine &TM, bool is64bit)
bool hasHardQuad() const
const SparcInstrInfo * getInstrInfo() const override
bool isTargetLinux() const
bool insertNOPLoad() const
bool useSoftFloat() const
bool hasLeonCycleCounter() const
bool fixAllFDIVSQRT() const
bool useSoftMulDiv() const
int64_t getStackPointerBias() const
The 64-bit ABI uses biased stack and frame pointers, so the stack frame of the current function is th...
int getAdjustedFrameSize(int stackSize) const
Given a actual stack size as determined by FrameInfo, this function returns adjusted framesize which ...
bool hasNoFMULS() const
bool enableMachineScheduler() const override
const SparcRegisterInfo & getRegisterInfo() const
getRegisterInfo - TargetInstrInfo is a superset of MRegister info.
const SparcTargetLowering * getTargetLowering() const override
Targets can subclass this to parameterize the SelectionDAG lowering and instruction selection process...
void ParseSubtargetFeatures(StringRef CPU, StringRef FS)
ParseSubtargetFeatures - Parses features string setting specified subtarget options.
Triple - Helper class for working with autoconf configuration names.
Definition: Triple.h:43
const SparcRegisterInfo * getRegisterInfo() const override
const TargetFrameLowering * getFrameLowering() const override
const SelectionDAGTargetInfo * getSelectionDAGInfo() const override
bool hasPWRPSR() const
Information about stack frame layout on the target.
bool isOSLinux() const
Tests whether the OS is Linux.
Definition: Triple.h:586
Primary interface to the complete machine description for the target machine.
Definition: TargetMachine.h:65
bool detectRoundChange() const
StringRef - Represent a constant reference to a string, i.e.
Definition: StringRef.h:48
bool hasUmacSmac() const
bool useDeprecatedV8Instructions() const
bool hasLeonCasa() const