diff options
Diffstat (limited to 'lib/Support/GraphWriter.cpp')
| -rw-r--r-- | lib/Support/GraphWriter.cpp | 198 |
1 files changed, 198 insertions, 0 deletions
diff --git a/lib/Support/GraphWriter.cpp b/lib/Support/GraphWriter.cpp new file mode 100644 index 00000000000..f6aaf838117 --- /dev/null +++ b/lib/Support/GraphWriter.cpp @@ -0,0 +1,198 @@ +//===-- GraphWriter.cpp - Implements GraphWriter support routines ---------===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// +// This file implements misc. GraphWriter support routines. +// +//===----------------------------------------------------------------------===// + +#include "llvm/Support/CommandLine.h" +#include "llvm/Support/GraphWriter.h" +#include "llvm/Support/Path.h" +#include "llvm/Support/Program.h" +#include "llvm/Config/config.h" +using namespace llvm; + +static cl::opt<bool> ViewBackground("view-background", cl::Hidden, + cl::desc("Execute graph viewer in the background. Creates tmp file litter.")); + +std::string llvm::DOT::EscapeString(const std::string &Label) { + std::string Str(Label); + for (unsigned i = 0; i != Str.length(); ++i) + switch (Str[i]) { + case '\n': + Str.insert(Str.begin()+i, '\\'); // Escape character... + ++i; + Str[i] = 'n'; + break; + case '\t': + Str.insert(Str.begin()+i, ' '); // Convert to two spaces + ++i; + Str[i] = ' '; + break; + case '\\': + if (i+1 != Str.length()) + switch (Str[i+1]) { + case 'l': continue; // don't disturb \l + case '|': case '{': case '}': + Str.erase(Str.begin()+i); continue; + default: break; + } + case '{': case '}': + case '<': case '>': + case '|': case '"': + Str.insert(Str.begin()+i, '\\'); // Escape character... + ++i; // don't infinite loop + break; + } + return Str; +} + +// Execute the graph viewer. Return true if successful. +static bool LLVM_ATTRIBUTE_UNUSED +ExecGraphViewer(const sys::Path &ExecPath, std::vector<const char*> &args, + const sys::Path &Filename, bool wait, std::string &ErrMsg) { + if (wait) { + if (sys::Program::ExecuteAndWait(ExecPath, &args[0],0,0,0,0,&ErrMsg)) { + errs() << "Error: " << ErrMsg << "\n"; + return false; + } + Filename.eraseFromDisk(); + errs() << " done. \n"; + } + else { + sys::Program::ExecuteNoWait(ExecPath, &args[0],0,0,0,&ErrMsg); + errs() << "Remember to erase graph file: " << Filename.str() << "\n"; + } + return true; +} + +void llvm::DisplayGraph(const sys::Path &Filename, bool wait, + GraphProgram::Name program) { + wait &= !ViewBackground; + std::string ErrMsg; +#if HAVE_GRAPHVIZ + sys::Path Graphviz(LLVM_PATH_GRAPHVIZ); + + std::vector<const char*> args; + args.push_back(Graphviz.c_str()); + args.push_back(Filename.c_str()); + args.push_back(0); + + errs() << "Running 'Graphviz' program... "; + if (!ExecGraphViewer(Graphviz, args, Filename, wait, ErrMsg)) + return; + +#elif HAVE_XDOT_PY + std::vector<const char*> args; + args.push_back(LLVM_PATH_XDOT_PY); + args.push_back(Filename.c_str()); + + switch (program) { + case GraphProgram::DOT: args.push_back("-f"); args.push_back("dot"); break; + case GraphProgram::FDP: args.push_back("-f"); args.push_back("fdp"); break; + case GraphProgram::NEATO: args.push_back("-f"); args.push_back("neato");break; + case GraphProgram::TWOPI: args.push_back("-f"); args.push_back("twopi");break; + case GraphProgram::CIRCO: args.push_back("-f"); args.push_back("circo");break; + } + + args.push_back(0); + + errs() << "Running 'xdot.py' program... "; + if (!ExecGraphViewer(sys::Path(LLVM_PATH_XDOT_PY), args, Filename, wait, ErrMsg)) + return; + +#elif (HAVE_GV && (HAVE_DOT || HAVE_FDP || HAVE_NEATO || \ + HAVE_TWOPI || HAVE_CIRCO)) + sys::Path PSFilename = Filename; + PSFilename.appendSuffix("ps"); + + sys::Path prog; + + // Set default grapher +#if HAVE_CIRCO + prog = sys::Path(LLVM_PATH_CIRCO); +#endif +#if HAVE_TWOPI + prog = sys::Path(LLVM_PATH_TWOPI); +#endif +#if HAVE_NEATO + prog = sys::Path(LLVM_PATH_NEATO); +#endif +#if HAVE_FDP + prog = sys::Path(LLVM_PATH_FDP); +#endif +#if HAVE_DOT + prog = sys::Path(LLVM_PATH_DOT); +#endif + + // Find which program the user wants +#if HAVE_DOT + if (program == GraphProgram::DOT) + prog = sys::Path(LLVM_PATH_DOT); +#endif +#if (HAVE_FDP) + if (program == GraphProgram::FDP) + prog = sys::Path(LLVM_PATH_FDP); +#endif +#if (HAVE_NEATO) + if (program == GraphProgram::NEATO) + prog = sys::Path(LLVM_PATH_NEATO); +#endif +#if (HAVE_TWOPI) + if (program == GraphProgram::TWOPI) + prog = sys::Path(LLVM_PATH_TWOPI); +#endif +#if (HAVE_CIRCO) + if (program == GraphProgram::CIRCO) + prog = sys::Path(LLVM_PATH_CIRCO); +#endif + + std::vector<const char*> args; + args.push_back(prog.c_str()); + args.push_back("-Tps"); + args.push_back("-Nfontname=Courier"); + args.push_back("-Gsize=7.5,10"); + args.push_back(Filename.c_str()); + args.push_back("-o"); + args.push_back(PSFilename.c_str()); + args.push_back(0); + + errs() << "Running '" << prog.str() << "' program... "; + + if (!ExecGraphViewer(prog, args, Filename, wait, ErrMsg)) + return; + + sys::Path gv(LLVM_PATH_GV); + args.clear(); + args.push_back(gv.c_str()); + args.push_back(PSFilename.c_str()); + args.push_back("--spartan"); + args.push_back(0); + + ErrMsg.clear(); + if (!ExecGraphViewer(gv, args, PSFilename, wait, ErrMsg)) + return; + +#elif HAVE_DOTTY + sys::Path dotty(LLVM_PATH_DOTTY); + + std::vector<const char*> args; + args.push_back(dotty.c_str()); + args.push_back(Filename.c_str()); + args.push_back(0); + +// Dotty spawns another app and doesn't wait until it returns +#if defined (__MINGW32__) || defined (_WINDOWS) + wait = false; +#endif + errs() << "Running 'dotty' program... "; + if (!ExecGraphViewer(dotty, args, Filename, wait, ErrMsg)) + return; +#endif +} |