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annotate lib/IR/DebugLoc.cpp @ 83:60c9769439b8

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LLVM 3.7
author Tatsuki IHA <e125716@ie.u-ryukyu.ac.jp>
date Wed, 18 Feb 2015 14:55:36 +0900
parents 54457678186b
children afa8332a0e37
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1 //===-- DebugLoc.cpp - Implement DebugLoc class ---------------------------===//
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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 "llvm/IR/DebugLoc.h"
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11 #include "LLVMContextImpl.h"
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12 #include "llvm/ADT/DenseMapInfo.h"
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13 #include "llvm/IR/DebugInfo.h"
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14 using namespace llvm;
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15
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16 //===----------------------------------------------------------------------===//
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17 // DebugLoc Implementation
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18 //===----------------------------------------------------------------------===//
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19
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20 unsigned DebugLoc::getLine() const { return DILocation(Loc).getLineNumber(); }
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21 unsigned DebugLoc::getCol() const { return DILocation(Loc).getColumnNumber(); }
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22
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23 MDNode *DebugLoc::getScope() const { return DILocation(Loc).getScope(); }
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24
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25 MDNode *DebugLoc::getInlinedAt() const {
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26 return DILocation(Loc).getOrigLocation();
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27 }
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28
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29 /// Return both the Scope and the InlinedAt values.
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30 void DebugLoc::getScopeAndInlinedAt(MDNode *&Scope, MDNode *&IA) const {
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31 Scope = getScope();
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32 IA = getInlinedAt();
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33 }
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34
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35 MDNode *DebugLoc::getScopeNode() const {
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36 if (MDNode *InlinedAt = getInlinedAt())
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37 return DebugLoc::getFromDILocation(InlinedAt).getScopeNode();
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38 return getScope();
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39 }
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40
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41 DebugLoc DebugLoc::getFnDebugLoc() const {
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42 const MDNode *Scope = getScopeNode();
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43 DISubprogram SP = getDISubprogram(Scope);
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44 if (SP.isSubprogram())
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45 return DebugLoc::get(SP.getScopeLineNumber(), 0, SP);
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46
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47 return DebugLoc();
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48 }
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49
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50 DebugLoc DebugLoc::get(unsigned Line, unsigned Col,
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51 MDNode *Scope, MDNode *InlinedAt) {
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52 // If no scope is available, this is an unknown location.
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53 if (!Scope)
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54 return DebugLoc();
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55
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56 return getFromDILocation(
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57 MDLocation::get(Scope->getContext(), Line, Col, Scope, InlinedAt));
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58 }
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60 /// getAsMDNode - This method converts the compressed DebugLoc node into a
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61 /// DILocation-compatible MDNode.
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62 MDNode *DebugLoc::getAsMDNode() const { return Loc; }
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63
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64 /// getFromDILocation - Translate the DILocation quad into a DebugLoc.
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65 DebugLoc DebugLoc::getFromDILocation(MDNode *N) {
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66 DebugLoc Loc;
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67 Loc.Loc.reset(N);
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68 return Loc;
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69 }
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71 /// getFromDILexicalBlock - Translate the DILexicalBlock into a DebugLoc.
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72 DebugLoc DebugLoc::getFromDILexicalBlock(MDNode *N) {
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73 DILexicalBlock LexBlock(N);
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74 MDNode *Scope = LexBlock.getContext();
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75 if (!Scope) return DebugLoc();
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76 return get(LexBlock.getLineNumber(), LexBlock.getColumnNumber(), Scope,
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77 nullptr);
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78 }
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79
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80 void DebugLoc::dump() const {
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81 #ifndef NDEBUG
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82 if (!isUnknown()) {
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83 dbgs() << getLine();
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84 if (getCol() != 0)
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85 dbgs() << ',' << getCol();
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86 DebugLoc InlinedAtDL = DebugLoc::getFromDILocation(getInlinedAt());
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87 if (!InlinedAtDL.isUnknown()) {
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88 dbgs() << " @ ";
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89 InlinedAtDL.dump();
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90 } else
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91 dbgs() << "\n";
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92 }
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93 #endif
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94 }
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96 void DebugLoc::print(raw_ostream &OS) const {
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97 if (!isUnknown()) {
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98 // Print source line info.
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99 DIScope Scope(getScope());
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100 assert((!Scope || Scope.isScope()) &&
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101 "Scope of a DebugLoc should be null or a DIScope.");
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102 if (Scope)
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103 OS << Scope.getFilename();
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104 else
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105 OS << "<unknown>";
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106 OS << ':' << getLine();
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107 if (getCol() != 0)
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108 OS << ':' << getCol();
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109 DebugLoc InlinedAtDL = DebugLoc::getFromDILocation(getInlinedAt());
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110 if (!InlinedAtDL.isUnknown()) {
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111 OS << " @[ ";
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112 InlinedAtDL.print(OS);
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113 OS << " ]";
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114 }
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115 }
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116 }