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annotate lib/Target/NVPTX/NVPTXSubtarget.h @ 121:803732b1fca8

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LLVM 5.0
author kono
date Fri, 27 Oct 2017 17:07:41 +0900
parents 1172e4bd9c6f
children 3a76565eade5
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1 //=====-- NVPTXSubtarget.h - Define Subtarget for the NVPTX ---*- C++ -*--====//
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2 //
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3 // The LLVM Compiler Infrastructure
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4 //
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5 // This file is distributed under the University of Illinois Open Source
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6 // License. See LICENSE.TXT for details.
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7 //
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8 //===----------------------------------------------------------------------===//
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9 //
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10 // This file declares the NVPTX specific subclass of TargetSubtarget.
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11 //
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12 //===----------------------------------------------------------------------===//
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13
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14 #ifndef LLVM_LIB_TARGET_NVPTX_NVPTXSUBTARGET_H
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15 #define LLVM_LIB_TARGET_NVPTX_NVPTXSUBTARGET_H
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16
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17 #include "NVPTX.h"
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18 #include "NVPTXFrameLowering.h"
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19 #include "NVPTXISelLowering.h"
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20 #include "NVPTXInstrInfo.h"
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21 #include "NVPTXRegisterInfo.h"
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22 #include "llvm/CodeGen/SelectionDAGTargetInfo.h"
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23 #include "llvm/IR/DataLayout.h"
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24 #include "llvm/Target/TargetSubtargetInfo.h"
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25 #include <string>
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26
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27 #define GET_SUBTARGETINFO_HEADER
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28 #include "NVPTXGenSubtargetInfo.inc"
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29
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30 namespace llvm {
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31
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32 class NVPTXSubtarget : public NVPTXGenSubtargetInfo {
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33 virtual void anchor();
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34 std::string TargetName;
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35
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36 // PTX version x.y is represented as 10*x+y, e.g. 3.1 == 31
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37 unsigned PTXVersion;
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38
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39 // SM version x.y is represented as 10*x+y, e.g. 3.1 == 31
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40 unsigned int SmVersion;
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41
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42 const NVPTXTargetMachine &TM;
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43 NVPTXInstrInfo InstrInfo;
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44 NVPTXTargetLowering TLInfo;
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45 SelectionDAGTargetInfo TSInfo;
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46
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47 // NVPTX does not have any call stack frame, but need a NVPTX specific
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48 // FrameLowering class because TargetFrameLowering is abstract.
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49 NVPTXFrameLowering FrameLowering;
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50
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51 protected:
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52 // Processor supports scoped atomic operations.
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53 bool HasAtomScope;
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54
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55 public:
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56 /// This constructor initializes the data members to match that
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57 /// of the specified module.
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58 ///
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59 NVPTXSubtarget(const Triple &TT, const std::string &CPU,
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60 const std::string &FS, const NVPTXTargetMachine &TM);
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61
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62 const TargetFrameLowering *getFrameLowering() const override {
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63 return &FrameLowering;
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64 }
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65 const NVPTXInstrInfo *getInstrInfo() const override { return &InstrInfo; }
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66 const NVPTXRegisterInfo *getRegisterInfo() const override {
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67 return &InstrInfo.getRegisterInfo();
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68 }
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69 const NVPTXTargetLowering *getTargetLowering() const override {
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70 return &TLInfo;
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71 }
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72 const SelectionDAGTargetInfo *getSelectionDAGInfo() const override {
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73 return &TSInfo;
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74 }
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76 bool hasBrkPt() const { return SmVersion >= 11; }
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77 bool hasAtomRedG32() const { return SmVersion >= 11; }
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78 bool hasAtomRedS32() const { return SmVersion >= 12; }
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79 bool hasAtomRedG64() const { return SmVersion >= 12; }
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80 bool hasAtomRedS64() const { return SmVersion >= 20; }
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81 bool hasAtomRedGen32() const { return SmVersion >= 20; }
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82 bool hasAtomRedGen64() const { return SmVersion >= 20; }
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83 bool hasAtomAddF32() const { return SmVersion >= 20; }
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84 bool hasAtomAddF64() const { return SmVersion >= 60; }
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85 bool hasAtomScope() const { return HasAtomScope; }
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86 bool hasAtomBitwise64() const { return SmVersion >= 32; }
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87 bool hasAtomMinMax64() const { return SmVersion >= 32; }
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88 bool hasVote() const { return SmVersion >= 12; }
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89 bool hasDouble() const { return SmVersion >= 13; }
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90 bool reqPTX20() const { return SmVersion >= 20; }
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91 bool hasF32FTZ() const { return SmVersion >= 20; }
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92 bool hasFMAF32() const { return SmVersion >= 20; }
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93 bool hasFMAF64() const { return SmVersion >= 13; }
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94 bool hasLDG() const { return SmVersion >= 32; }
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95 bool hasLDU() const { return ((SmVersion >= 20) && (SmVersion < 30)); }
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96 bool hasGenericLdSt() const { return SmVersion >= 20; }
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97 inline bool hasHWROT32() const { return SmVersion >= 32; }
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98 inline bool hasSWROT32() const {
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99 return ((SmVersion >= 20) && (SmVersion < 32));
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100 }
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101 inline bool hasROT32() const { return hasHWROT32() || hasSWROT32(); }
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102 inline bool hasROT64() const { return SmVersion >= 20; }
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103 bool hasImageHandles() const;
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104 bool hasFP16Math() const { return SmVersion >= 53; }
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105 bool allowFP16Math() const;
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106
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107 unsigned int getSmVersion() const { return SmVersion; }
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108 std::string getTargetName() const { return TargetName; }
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109
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110 unsigned getPTXVersion() const { return PTXVersion; }
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111
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112 NVPTXSubtarget &initializeSubtargetDependencies(StringRef CPU, StringRef FS);
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113 void ParseSubtargetFeatures(StringRef CPU, StringRef FS);
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114 };
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115
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116 } // End llvm namespace
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117
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118 #endif