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//===-- GraphWriter.cpp - Implements GraphWriter support routines ---------===//
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// The LLVM Compiler Infrastructure
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//===----------------------------------------------------------------------===//
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// This file implements misc. GraphWriter support routines.
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//===----------------------------------------------------------------------===//
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#include "llvm/Support/GraphWriter.h"
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#include "llvm/System/Path.h"
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#include "llvm/System/Program.h"
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#include "llvm/Config/config.h"
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std::string llvm::DOT::EscapeString(const std::string &Label) {
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std::string Str(Label);
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for (unsigned i = 0; i != Str.length(); ++i)
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Str.insert(Str.begin()+i, '\\'); // Escape character...
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Str.insert(Str.begin()+i, ' '); // Convert to two spaces
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if (i+1 != Str.length())
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case 'l': continue; // don't disturb \l
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case '|': case '{': case '}':
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Str.erase(Str.begin()+i); continue;
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Str.insert(Str.begin()+i, '\\'); // Escape character...
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++i; // don't infinite loop
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void llvm::DisplayGraph(const sys::Path &Filename, bool wait,
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GraphProgram::Name program) {
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sys::Path Graphviz(LLVM_PATH_GRAPHVIZ);
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std::vector<const char*> args;
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args.push_back(Graphviz.c_str());
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args.push_back(Filename.c_str());
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errs() << "Running 'Graphviz' program... ";
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if (sys::Program::ExecuteAndWait(Graphviz, &args[0],0,0,0,0,&ErrMsg))
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errs() << "Error viewing graph " << Filename.str() << ": " << ErrMsg
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Filename.eraseFromDisk();
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#elif (HAVE_GV && (HAVE_DOT || HAVE_FDP || HAVE_NEATO || \
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HAVE_TWOPI || HAVE_CIRCO))
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sys::Path PSFilename = Filename;
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PSFilename.appendSuffix("ps");
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// Set default grapher
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prog = sys::Path(LLVM_PATH_CIRCO);
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prog = sys::Path(LLVM_PATH_TWOPI);
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prog = sys::Path(LLVM_PATH_NEATO);
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prog = sys::Path(LLVM_PATH_FDP);
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prog = sys::Path(LLVM_PATH_DOT);
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// Find which program the user wants
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if (program == GraphProgram::DOT)
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prog = sys::Path(LLVM_PATH_DOT);
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if (program == GraphProgram::FDP)
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prog = sys::Path(LLVM_PATH_FDP);
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if (program == GraphProgram::NEATO)
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prog = sys::Path(LLVM_PATH_NEATO);
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if (program == GraphProgram::TWOPI)
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prog = sys::Path(LLVM_PATH_TWOPI);
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if (program == GraphProgram::CIRCO)
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prog = sys::Path(LLVM_PATH_CIRCO);
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std::vector<const char*> args;
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args.push_back(prog.c_str());
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args.push_back("-Tps");
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args.push_back("-Nfontname=Courier");
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args.push_back("-Gsize=7.5,10");
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args.push_back(Filename.c_str());
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args.push_back("-o");
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args.push_back(PSFilename.c_str());
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errs() << "Running '" << prog.str() << "' program... ";
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if (sys::Program::ExecuteAndWait(prog, &args[0], 0, 0, 0, 0, &ErrMsg)) {
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errs() << "Error viewing graph " << Filename.str() << ": '"
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errs() << " done. \n";
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sys::Path gv(LLVM_PATH_GV);
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args.push_back(gv.c_str());
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args.push_back(PSFilename.c_str());
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args.push_back("--spartan");
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if (sys::Program::ExecuteAndWait(gv, &args[0],0,0,0,0,&ErrMsg))
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errs() << "Error viewing graph: " << ErrMsg << "\n";
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Filename.eraseFromDisk();
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PSFilename.eraseFromDisk();
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sys::Program::ExecuteNoWait(gv, &args[0],0,0,0,&ErrMsg);
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errs() << "Remember to erase graph files: " << Filename.str() << " "
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<< PSFilename.str() << "\n";
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sys::Path dotty(LLVM_PATH_DOTTY);
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std::vector<const char*> args;
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args.push_back(dotty.c_str());
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args.push_back(Filename.c_str());
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errs() << "Running 'dotty' program... ";
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if (sys::Program::ExecuteAndWait(dotty, &args[0],0,0,0,0,&ErrMsg)) {
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errs() << "Error viewing graph " << Filename.str() << ": "
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// Dotty spawns another app and doesn't wait until it returns
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#if defined (__MINGW32__) || defined (_WINDOWS)
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Filename.eraseFromDisk();