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comparison lib/Support/GraphWriter.cpp @ 3:9ad51c7bc036

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1st commit. remove git dir and add all files.
author Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
date Wed, 15 May 2013 06:43:32 +0900
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-1:000000000000 3:9ad51c7bc036
1 //===-- GraphWriter.cpp - Implements GraphWriter support routines ---------===//
2 //
3 // The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 //
10 // This file implements misc. GraphWriter support routines.
11 //
12 //===----------------------------------------------------------------------===//
13
14 #include "llvm/Support/GraphWriter.h"
15 #include "llvm/Config/config.h"
16 #include "llvm/Support/CommandLine.h"
17 #include "llvm/Support/Path.h"
18 #include "llvm/Support/Program.h"
19 using namespace llvm;
20
21 static cl::opt<bool> ViewBackground("view-background", cl::Hidden,
22 cl::desc("Execute graph viewer in the background. Creates tmp file litter."));
23
24 std::string llvm::DOT::EscapeString(const std::string &Label) {
25 std::string Str(Label);
26 for (unsigned i = 0; i != Str.length(); ++i)
27 switch (Str[i]) {
28 case '\n':
29 Str.insert(Str.begin()+i, '\\'); // Escape character...
30 ++i;
31 Str[i] = 'n';
32 break;
33 case '\t':
34 Str.insert(Str.begin()+i, ' '); // Convert to two spaces
35 ++i;
36 Str[i] = ' ';
37 break;
38 case '\\':
39 if (i+1 != Str.length())
40 switch (Str[i+1]) {
41 case 'l': continue; // don't disturb \l
42 case '|': case '{': case '}':
43 Str.erase(Str.begin()+i); continue;
44 default: break;
45 }
46 case '{': case '}':
47 case '<': case '>':
48 case '|': case '"':
49 Str.insert(Str.begin()+i, '\\'); // Escape character...
50 ++i; // don't infinite loop
51 break;
52 }
53 return Str;
54 }
55
56 /// \brief Get a color string for this node number. Simply round-robin selects
57 /// from a reasonable number of colors.
58 StringRef llvm::DOT::getColorString(unsigned ColorNumber) {
59 static const int NumColors = 20;
60 static const char* Colors[NumColors] = {
61 "aaaaaa", "aa0000", "00aa00", "aa5500", "0055ff", "aa00aa", "00aaaa",
62 "555555", "ff5555", "55ff55", "ffff55", "5555ff", "ff55ff", "55ffff",
63 "ffaaaa", "aaffaa", "ffffaa", "aaaaff", "ffaaff", "aaffff"};
64 return Colors[ColorNumber % NumColors];
65 }
66
67 // Execute the graph viewer. Return true if successful.
68 static bool LLVM_ATTRIBUTE_UNUSED
69 ExecGraphViewer(const sys::Path &ExecPath, std::vector<const char*> &args,
70 const sys::Path &Filename, bool wait, std::string &ErrMsg) {
71 if (wait) {
72 if (sys::Program::ExecuteAndWait(ExecPath, &args[0],0,0,0,0,&ErrMsg)) {
73 errs() << "Error: " << ErrMsg << "\n";
74 return false;
75 }
76 Filename.eraseFromDisk();
77 errs() << " done. \n";
78 }
79 else {
80 sys::Program::ExecuteNoWait(ExecPath, &args[0],0,0,0,&ErrMsg);
81 errs() << "Remember to erase graph file: " << Filename.str() << "\n";
82 }
83 return true;
84 }
85
86 void llvm::DisplayGraph(const sys::Path &Filename, bool wait,
87 GraphProgram::Name program) {
88 wait &= !ViewBackground;
89 std::string ErrMsg;
90 #if HAVE_GRAPHVIZ
91 sys::Path Graphviz(LLVM_PATH_GRAPHVIZ);
92
93 std::vector<const char*> args;
94 args.push_back(Graphviz.c_str());
95 args.push_back(Filename.c_str());
96 args.push_back(0);
97
98 errs() << "Running 'Graphviz' program... ";
99 if (!ExecGraphViewer(Graphviz, args, Filename, wait, ErrMsg))
100 return;
101
102 #elif HAVE_XDOT_PY
103 std::vector<const char*> args;
104 args.push_back(LLVM_PATH_XDOT_PY);
105 args.push_back(Filename.c_str());
106
107 switch (program) {
108 case GraphProgram::DOT: args.push_back("-f"); args.push_back("dot"); break;
109 case GraphProgram::FDP: args.push_back("-f"); args.push_back("fdp"); break;
110 case GraphProgram::NEATO: args.push_back("-f"); args.push_back("neato");break;
111 case GraphProgram::TWOPI: args.push_back("-f"); args.push_back("twopi");break;
112 case GraphProgram::CIRCO: args.push_back("-f"); args.push_back("circo");break;
113 }
114
115 args.push_back(0);
116
117 errs() << "Running 'xdot.py' program... ";
118 if (!ExecGraphViewer(sys::Path(LLVM_PATH_XDOT_PY), args, Filename, wait, ErrMsg))
119 return;
120
121 #elif (HAVE_GV && (HAVE_DOT || HAVE_FDP || HAVE_NEATO || \
122 HAVE_TWOPI || HAVE_CIRCO))
123 sys::Path PSFilename = Filename;
124 PSFilename.appendSuffix("ps");
125
126 sys::Path prog;
127
128 // Set default grapher
129 #if HAVE_CIRCO
130 prog = sys::Path(LLVM_PATH_CIRCO);
131 #endif
132 #if HAVE_TWOPI
133 prog = sys::Path(LLVM_PATH_TWOPI);
134 #endif
135 #if HAVE_NEATO
136 prog = sys::Path(LLVM_PATH_NEATO);
137 #endif
138 #if HAVE_FDP
139 prog = sys::Path(LLVM_PATH_FDP);
140 #endif
141 #if HAVE_DOT
142 prog = sys::Path(LLVM_PATH_DOT);
143 #endif
144
145 // Find which program the user wants
146 #if HAVE_DOT
147 if (program == GraphProgram::DOT)
148 prog = sys::Path(LLVM_PATH_DOT);
149 #endif
150 #if (HAVE_FDP)
151 if (program == GraphProgram::FDP)
152 prog = sys::Path(LLVM_PATH_FDP);
153 #endif
154 #if (HAVE_NEATO)
155 if (program == GraphProgram::NEATO)
156 prog = sys::Path(LLVM_PATH_NEATO);
157 #endif
158 #if (HAVE_TWOPI)
159 if (program == GraphProgram::TWOPI)
160 prog = sys::Path(LLVM_PATH_TWOPI);
161 #endif
162 #if (HAVE_CIRCO)
163 if (program == GraphProgram::CIRCO)
164 prog = sys::Path(LLVM_PATH_CIRCO);
165 #endif
166
167 std::vector<const char*> args;
168 args.push_back(prog.c_str());
169 args.push_back("-Tps");
170 args.push_back("-Nfontname=Courier");
171 args.push_back("-Gsize=7.5,10");
172 args.push_back(Filename.c_str());
173 args.push_back("-o");
174 args.push_back(PSFilename.c_str());
175 args.push_back(0);
176
177 errs() << "Running '" << prog.str() << "' program... ";
178
179 if (!ExecGraphViewer(prog, args, Filename, wait, ErrMsg))
180 return;
181
182 sys::Path gv(LLVM_PATH_GV);
183 args.clear();
184 args.push_back(gv.c_str());
185 args.push_back(PSFilename.c_str());
186 args.push_back("--spartan");
187 args.push_back(0);
188
189 ErrMsg.clear();
190 if (!ExecGraphViewer(gv, args, PSFilename, wait, ErrMsg))
191 return;
192
193 #elif HAVE_DOTTY
194 sys::Path dotty(LLVM_PATH_DOTTY);
195
196 std::vector<const char*> args;
197 args.push_back(dotty.c_str());
198 args.push_back(Filename.c_str());
199 args.push_back(0);
200
201 // Dotty spawns another app and doesn't wait until it returns
202 #if defined (__MINGW32__) || defined (_WINDOWS)
203 wait = false;
204 #endif
205 errs() << "Running 'dotty' program... ";
206 if (!ExecGraphViewer(dotty, args, Filename, wait, ErrMsg))
207 return;
208 #endif
209 }