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annotate lib/Support/GraphWriter.cpp @ 21:fc4a6333556f

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change error message when tail call elimination is failed.
author Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
date Mon, 14 Oct 2013 19:09:00 +0900
parents 9ad51c7bc036
children
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1 //===-- GraphWriter.cpp - Implements GraphWriter support routines ---------===//
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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 implements misc. GraphWriter support routines.
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11 //
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12 //===----------------------------------------------------------------------===//
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13
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14 #include "llvm/Support/GraphWriter.h"
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15 #include "llvm/Config/config.h"
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16 #include "llvm/Support/CommandLine.h"
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17 #include "llvm/Support/Path.h"
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18 #include "llvm/Support/Program.h"
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19 using namespace llvm;
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20
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21 static cl::opt<bool> ViewBackground("view-background", cl::Hidden,
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22 cl::desc("Execute graph viewer in the background. Creates tmp file litter."));
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23
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24 std::string llvm::DOT::EscapeString(const std::string &Label) {
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25 std::string Str(Label);
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26 for (unsigned i = 0; i != Str.length(); ++i)
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27 switch (Str[i]) {
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28 case '\n':
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29 Str.insert(Str.begin()+i, '\\'); // Escape character...
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30 ++i;
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31 Str[i] = 'n';
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32 break;
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33 case '\t':
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34 Str.insert(Str.begin()+i, ' '); // Convert to two spaces
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35 ++i;
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36 Str[i] = ' ';
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37 break;
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38 case '\\':
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39 if (i+1 != Str.length())
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40 switch (Str[i+1]) {
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41 case 'l': continue; // don't disturb \l
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42 case '|': case '{': case '}':
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43 Str.erase(Str.begin()+i); continue;
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44 default: break;
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45 }
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46 case '{': case '}':
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47 case '<': case '>':
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48 case '|': case '"':
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49 Str.insert(Str.begin()+i, '\\'); // Escape character...
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50 ++i; // don't infinite loop
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51 break;
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52 }
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53 return Str;
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54 }
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55
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56 /// \brief Get a color string for this node number. Simply round-robin selects
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57 /// from a reasonable number of colors.
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58 StringRef llvm::DOT::getColorString(unsigned ColorNumber) {
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59 static const int NumColors = 20;
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60 static const char* Colors[NumColors] = {
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61 "aaaaaa", "aa0000", "00aa00", "aa5500", "0055ff", "aa00aa", "00aaaa",
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62 "555555", "ff5555", "55ff55", "ffff55", "5555ff", "ff55ff", "55ffff",
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63 "ffaaaa", "aaffaa", "ffffaa", "aaaaff", "ffaaff", "aaffff"};
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64 return Colors[ColorNumber % NumColors];
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65 }
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66
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67 // Execute the graph viewer. Return true if successful.
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68 static bool LLVM_ATTRIBUTE_UNUSED
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69 ExecGraphViewer(const sys::Path &ExecPath, std::vector<const char*> &args,
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70 const sys::Path &Filename, bool wait, std::string &ErrMsg) {
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71 if (wait) {
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72 if (sys::Program::ExecuteAndWait(ExecPath, &args[0],0,0,0,0,&ErrMsg)) {
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73 errs() << "Error: " << ErrMsg << "\n";
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74 return false;
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75 }
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76 Filename.eraseFromDisk();
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77 errs() << " done. \n";
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78 }
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79 else {
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80 sys::Program::ExecuteNoWait(ExecPath, &args[0],0,0,0,&ErrMsg);
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81 errs() << "Remember to erase graph file: " << Filename.str() << "\n";
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82 }
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83 return true;
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84 }
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85
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86 void llvm::DisplayGraph(const sys::Path &Filename, bool wait,
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87 GraphProgram::Name program) {
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88 wait &= !ViewBackground;
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89 std::string ErrMsg;
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90 #if HAVE_GRAPHVIZ
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91 sys::Path Graphviz(LLVM_PATH_GRAPHVIZ);
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92
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93 std::vector<const char*> args;
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94 args.push_back(Graphviz.c_str());
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95 args.push_back(Filename.c_str());
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96 args.push_back(0);
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97
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98 errs() << "Running 'Graphviz' program... ";
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99 if (!ExecGraphViewer(Graphviz, args, Filename, wait, ErrMsg))
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100 return;
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101
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102 #elif HAVE_XDOT_PY
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103 std::vector<const char*> args;
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104 args.push_back(LLVM_PATH_XDOT_PY);
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105 args.push_back(Filename.c_str());
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106
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107 switch (program) {
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108 case GraphProgram::DOT: args.push_back("-f"); args.push_back("dot"); break;
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109 case GraphProgram::FDP: args.push_back("-f"); args.push_back("fdp"); break;
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110 case GraphProgram::NEATO: args.push_back("-f"); args.push_back("neato");break;
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111 case GraphProgram::TWOPI: args.push_back("-f"); args.push_back("twopi");break;
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112 case GraphProgram::CIRCO: args.push_back("-f"); args.push_back("circo");break;
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113 }
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114
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115 args.push_back(0);
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116
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117 errs() << "Running 'xdot.py' program... ";
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118 if (!ExecGraphViewer(sys::Path(LLVM_PATH_XDOT_PY), args, Filename, wait, ErrMsg))
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119 return;
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120
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121 #elif (HAVE_GV && (HAVE_DOT || HAVE_FDP || HAVE_NEATO || \
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122 HAVE_TWOPI || HAVE_CIRCO))
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123 sys::Path PSFilename = Filename;
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124 PSFilename.appendSuffix("ps");
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125
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126 sys::Path prog;
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127
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128 // Set default grapher
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129 #if HAVE_CIRCO
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130 prog = sys::Path(LLVM_PATH_CIRCO);
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131 #endif
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132 #if HAVE_TWOPI
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133 prog = sys::Path(LLVM_PATH_TWOPI);
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134 #endif
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135 #if HAVE_NEATO
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136 prog = sys::Path(LLVM_PATH_NEATO);
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137 #endif
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138 #if HAVE_FDP
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139 prog = sys::Path(LLVM_PATH_FDP);
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140 #endif
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141 #if HAVE_DOT
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142 prog = sys::Path(LLVM_PATH_DOT);
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143 #endif
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144
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145 // Find which program the user wants
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146 #if HAVE_DOT
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147 if (program == GraphProgram::DOT)
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148 prog = sys::Path(LLVM_PATH_DOT);
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149 #endif
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150 #if (HAVE_FDP)
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151 if (program == GraphProgram::FDP)
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152 prog = sys::Path(LLVM_PATH_FDP);
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153 #endif
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154 #if (HAVE_NEATO)
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155 if (program == GraphProgram::NEATO)
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156 prog = sys::Path(LLVM_PATH_NEATO);
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157 #endif
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158 #if (HAVE_TWOPI)
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159 if (program == GraphProgram::TWOPI)
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160 prog = sys::Path(LLVM_PATH_TWOPI);
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161 #endif
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162 #if (HAVE_CIRCO)
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163 if (program == GraphProgram::CIRCO)
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164 prog = sys::Path(LLVM_PATH_CIRCO);
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165 #endif
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166
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167 std::vector<const char*> args;
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168 args.push_back(prog.c_str());
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169 args.push_back("-Tps");
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170 args.push_back("-Nfontname=Courier");
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171 args.push_back("-Gsize=7.5,10");
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172 args.push_back(Filename.c_str());
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173 args.push_back("-o");
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174 args.push_back(PSFilename.c_str());
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175 args.push_back(0);
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176
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177 errs() << "Running '" << prog.str() << "' program... ";
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178
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179 if (!ExecGraphViewer(prog, args, Filename, wait, ErrMsg))
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180 return;
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181
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182 sys::Path gv(LLVM_PATH_GV);
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183 args.clear();
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184 args.push_back(gv.c_str());
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185 args.push_back(PSFilename.c_str());
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186 args.push_back("--spartan");
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187 args.push_back(0);
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188
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189 ErrMsg.clear();
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190 if (!ExecGraphViewer(gv, args, PSFilename, wait, ErrMsg))
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191 return;
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192
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193 #elif HAVE_DOTTY
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194 sys::Path dotty(LLVM_PATH_DOTTY);
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195
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196 std::vector<const char*> args;
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197 args.push_back(dotty.c_str());
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198 args.push_back(Filename.c_str());
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199 args.push_back(0);
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200
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201 // Dotty spawns another app and doesn't wait until it returns
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202 #if defined (__MINGW32__) || defined (_WINDOWS)
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203 wait = false;
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204 #endif
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205 errs() << "Running 'dotty' program... ";
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206 if (!ExecGraphViewer(dotty, args, Filename, wait, ErrMsg))
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207 return;
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208 #endif
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209 }