annotate lib/Target/Mips/MipsAsmPrinter.h @ 33:e4204d083e25 LLVM3.5

LLVM 3.5
author Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
date Thu, 12 Dec 2013 14:32:10 +0900
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1 //===-- MipsAsmPrinter.h - Mips LLVM Assembly Printer ----------*- 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 // Mips Assembly printer class.
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11 //
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12 //===----------------------------------------------------------------------===//
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13
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14 #ifndef MIPSASMPRINTER_H
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15 #define MIPSASMPRINTER_H
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16
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17 #include "MipsMCInstLower.h"
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18 #include "MipsMachineFunction.h"
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19 #include "MipsSubtarget.h"
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20 #include "llvm/CodeGen/AsmPrinter.h"
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21 #include "llvm/Support/Compiler.h"
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22 #include "llvm/Target/TargetMachine.h"
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23
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24 namespace llvm {
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25 class MCStreamer;
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26 class MachineInstr;
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27 class MachineBasicBlock;
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28 class MipsTargetStreamer;
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29 class Module;
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30 class raw_ostream;
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31
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32 class LLVM_LIBRARY_VISIBILITY MipsAsmPrinter : public AsmPrinter {
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33 MipsTargetStreamer &getTargetStreamer();
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34
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35 void EmitInstrWithMacroNoAT(const MachineInstr *MI);
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36
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37 private:
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38 // tblgen'erated function.
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39 bool emitPseudoExpansionLowering(MCStreamer &OutStreamer,
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40 const MachineInstr *MI);
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41
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42 // lowerOperand - Convert a MachineOperand into the equivalent MCOperand.
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43 bool lowerOperand(const MachineOperand &MO, MCOperand &MCOp);
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44
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45 /// MCP - Keep a pointer to constantpool entries of the current
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46 /// MachineFunction.
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47 const MachineConstantPool *MCP;
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48
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49 /// InConstantPool - Maintain state when emitting a sequence of constant
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50 /// pool entries so we can properly mark them as data regions.
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51 bool InConstantPool;
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52
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53
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54 public:
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55
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56 const MipsSubtarget *Subtarget;
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57 const MipsFunctionInfo *MipsFI;
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58 MipsMCInstLower MCInstLowering;
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59
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60 explicit MipsAsmPrinter(TargetMachine &TM, MCStreamer &Streamer)
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61 : AsmPrinter(TM, Streamer), MCP(0), InConstantPool(false),
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62 MCInstLowering(*this) {
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63 Subtarget = &TM.getSubtarget<MipsSubtarget>();
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64 }
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65
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66 virtual const char *getPassName() const {
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67 return "Mips Assembly Printer";
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68 }
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69
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70 virtual bool runOnMachineFunction(MachineFunction &MF);
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71
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72 virtual void EmitConstantPool() LLVM_OVERRIDE {
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73 bool UsingConstantPools =
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74 (Subtarget->inMips16Mode() && Subtarget->useConstantIslands());
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75 if (!UsingConstantPools)
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76 AsmPrinter::EmitConstantPool();
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77 // we emit constant pools customly!
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78 }
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79
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80 void EmitInstruction(const MachineInstr *MI);
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81 void printSavedRegsBitmask(raw_ostream &O);
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82 void printHex32(unsigned int Value, raw_ostream &O);
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83 void emitFrameDirective();
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84 const char *getCurrentABIString() const;
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85 virtual void EmitFunctionEntryLabel();
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86 virtual void EmitFunctionBodyStart();
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87 virtual void EmitFunctionBodyEnd();
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88 virtual bool isBlockOnlyReachableByFallthrough(const MachineBasicBlock*
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89 MBB) const;
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90 bool PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
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91 unsigned AsmVariant, const char *ExtraCode,
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92 raw_ostream &O);
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93 bool PrintAsmMemoryOperand(const MachineInstr *MI, unsigned OpNum,
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94 unsigned AsmVariant, const char *ExtraCode,
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95 raw_ostream &O);
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96 void printOperand(const MachineInstr *MI, int opNum, raw_ostream &O);
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97 void printUnsignedImm(const MachineInstr *MI, int opNum, raw_ostream &O);
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98 void printUnsignedImm8(const MachineInstr *MI, int opNum, raw_ostream &O);
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99 void printMemOperand(const MachineInstr *MI, int opNum, raw_ostream &O);
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100 void printMemOperandEA(const MachineInstr *MI, int opNum, raw_ostream &O);
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101 void printFCCOperand(const MachineInstr *MI, int opNum, raw_ostream &O,
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102 const char *Modifier = 0);
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103 void EmitStartOfAsmFile(Module &M);
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104 void EmitEndOfAsmFile(Module &M);
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105 void PrintDebugValueComment(const MachineInstr *MI, raw_ostream &OS);
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106 };
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107 }
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108
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109 #endif
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110