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annotate lib/Object/RecordStreamer.cpp @ 77:54457678186b

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LLVM 3.6
author Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
date Mon, 08 Sep 2014 22:06:00 +0900
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children afa8332a0e37
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77
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1 //===-- RecordStreamer.cpp - Record asm definde and used symbols ----------===//
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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 #include "RecordStreamer.h"
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11 #include "llvm/MC/MCSymbol.h"
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12 using namespace llvm;
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13
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14 void RecordStreamer::markDefined(const MCSymbol &Symbol) {
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15 State &S = Symbols[Symbol.getName()];
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16 switch (S) {
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17 case DefinedGlobal:
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18 case Global:
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19 S = DefinedGlobal;
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20 break;
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21 case NeverSeen:
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22 case Defined:
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23 case Used:
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24 S = Defined;
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25 break;
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26 }
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27 }
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28
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29 void RecordStreamer::markGlobal(const MCSymbol &Symbol) {
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30 State &S = Symbols[Symbol.getName()];
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31 switch (S) {
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32 case DefinedGlobal:
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33 case Defined:
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34 S = DefinedGlobal;
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35 break;
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36
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37 case NeverSeen:
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38 case Global:
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39 case Used:
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40 S = Global;
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41 break;
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42 }
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43 }
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44
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45 void RecordStreamer::markUsed(const MCSymbol &Symbol) {
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46 State &S = Symbols[Symbol.getName()];
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47 switch (S) {
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48 case DefinedGlobal:
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49 case Defined:
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50 case Global:
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51 break;
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52
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53 case NeverSeen:
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54 case Used:
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55 S = Used;
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56 break;
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57 }
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58 }
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59
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60 void RecordStreamer::visitUsedSymbol(const MCSymbol &Sym) { markUsed(Sym); }
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61
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62 RecordStreamer::const_iterator RecordStreamer::begin() {
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63 return Symbols.begin();
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64 }
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65
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66 RecordStreamer::const_iterator RecordStreamer::end() { return Symbols.end(); }
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67
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68 RecordStreamer::RecordStreamer(MCContext &Context) : MCStreamer(Context) {}
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69
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70 void RecordStreamer::EmitInstruction(const MCInst &Inst,
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71 const MCSubtargetInfo &STI) {
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72 MCStreamer::EmitInstruction(Inst, STI);
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73 }
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74
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75 void RecordStreamer::EmitLabel(MCSymbol *Symbol) {
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76 MCStreamer::EmitLabel(Symbol);
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77 markDefined(*Symbol);
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78 }
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79
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80 void RecordStreamer::EmitAssignment(MCSymbol *Symbol, const MCExpr *Value) {
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81 markDefined(*Symbol);
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82 MCStreamer::EmitAssignment(Symbol, Value);
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83 }
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84
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85 bool RecordStreamer::EmitSymbolAttribute(MCSymbol *Symbol,
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86 MCSymbolAttr Attribute) {
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87 if (Attribute == MCSA_Global)
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88 markGlobal(*Symbol);
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89 return true;
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90 }
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91
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92 void RecordStreamer::EmitZerofill(const MCSection *Section, MCSymbol *Symbol,
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93 uint64_t Size, unsigned ByteAlignment) {
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94 markDefined(*Symbol);
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95 }
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96
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97 void RecordStreamer::EmitCommonSymbol(MCSymbol *Symbol, uint64_t Size,
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98 unsigned ByteAlignment) {
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99 markDefined(*Symbol);
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100 }