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https://github.com/c64scene-ar/llvm-6502.git
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157381 91177308-0d34-0410-b5e6-96231b3b80d8
199 lines
5.5 KiB
C++
199 lines
5.5 KiB
C++
//===-- GraphWriter.cpp - Implements GraphWriter support routines ---------===//
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//
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// The LLVM Compiler Infrastructure
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//
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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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//===----------------------------------------------------------------------===//
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//
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// This file implements misc. GraphWriter support routines.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/Support/CommandLine.h"
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#include "llvm/Support/GraphWriter.h"
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#include "llvm/Support/Path.h"
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#include "llvm/Support/Program.h"
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#include "llvm/Config/config.h"
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using namespace llvm;
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static cl::opt<bool> ViewBackground("view-background", cl::Hidden,
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cl::desc("Execute graph viewer in the background. Creates tmp file litter."));
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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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switch (Str[i]) {
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case '\n':
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Str.insert(Str.begin()+i, '\\'); // Escape character...
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++i;
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Str[i] = 'n';
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break;
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case '\t':
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Str.insert(Str.begin()+i, ' '); // Convert to two spaces
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++i;
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Str[i] = ' ';
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break;
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case '\\':
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if (i+1 != Str.length())
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switch (Str[i+1]) {
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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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default: break;
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}
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case '{': case '}':
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case '<': case '>':
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case '|': case '"':
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Str.insert(Str.begin()+i, '\\'); // Escape character...
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++i; // don't infinite loop
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break;
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}
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return Str;
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}
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// Execute the graph viewer. Return true if successful.
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static bool LLVM_ATTRIBUTE_UNUSED
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ExecGraphViewer(const sys::Path &ExecPath, std::vector<const char*> &args,
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const sys::Path &Filename, bool wait, std::string &ErrMsg) {
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if (wait) {
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if (sys::Program::ExecuteAndWait(ExecPath, &args[0],0,0,0,0,&ErrMsg)) {
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errs() << "Error: " << ErrMsg << "\n";
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return false;
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}
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Filename.eraseFromDisk();
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errs() << " done. \n";
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}
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else {
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sys::Program::ExecuteNoWait(ExecPath, &args[0],0,0,0,&ErrMsg);
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errs() << "Remember to erase graph file: " << Filename.str() << "\n";
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}
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return true;
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}
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void llvm::DisplayGraph(const sys::Path &Filename, bool wait,
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GraphProgram::Name program) {
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wait &= !ViewBackground;
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std::string ErrMsg;
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#if HAVE_GRAPHVIZ
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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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args.push_back(0);
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errs() << "Running 'Graphviz' program... ";
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if (!ExecGraphViewer(Graphviz, args, Filename, wait, ErrMsg))
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return;
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#elif HAVE_XDOT_PY
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std::vector<const char*> args;
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args.push_back(LLVM_PATH_XDOT_PY);
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args.push_back(Filename.c_str());
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switch (program) {
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case GraphProgram::DOT: args.push_back("-f"); args.push_back("dot"); break;
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case GraphProgram::FDP: args.push_back("-f"); args.push_back("fdp"); break;
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case GraphProgram::NEATO: args.push_back("-f"); args.push_back("neato");break;
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case GraphProgram::TWOPI: args.push_back("-f"); args.push_back("twopi");break;
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case GraphProgram::CIRCO: args.push_back("-f"); args.push_back("circo");break;
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}
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args.push_back(0);
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errs() << "Running 'xdot.py' program... ";
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if (!ExecGraphViewer(sys::Path(LLVM_PATH_XDOT_PY), args, Filename, wait, ErrMsg))
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return;
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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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sys::Path prog;
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// Set default grapher
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#if HAVE_CIRCO
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prog = sys::Path(LLVM_PATH_CIRCO);
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#endif
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#if HAVE_TWOPI
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prog = sys::Path(LLVM_PATH_TWOPI);
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#endif
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#if HAVE_NEATO
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prog = sys::Path(LLVM_PATH_NEATO);
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#endif
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#if HAVE_FDP
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prog = sys::Path(LLVM_PATH_FDP);
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#endif
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#if HAVE_DOT
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prog = sys::Path(LLVM_PATH_DOT);
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#endif
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// Find which program the user wants
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#if HAVE_DOT
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if (program == GraphProgram::DOT)
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prog = sys::Path(LLVM_PATH_DOT);
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#endif
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#if (HAVE_FDP)
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if (program == GraphProgram::FDP)
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prog = sys::Path(LLVM_PATH_FDP);
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#endif
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#if (HAVE_NEATO)
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if (program == GraphProgram::NEATO)
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prog = sys::Path(LLVM_PATH_NEATO);
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#endif
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#if (HAVE_TWOPI)
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if (program == GraphProgram::TWOPI)
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prog = sys::Path(LLVM_PATH_TWOPI);
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#endif
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#if (HAVE_CIRCO)
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if (program == GraphProgram::CIRCO)
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prog = sys::Path(LLVM_PATH_CIRCO);
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#endif
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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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args.push_back(0);
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errs() << "Running '" << prog.str() << "' program... ";
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if (!ExecGraphViewer(prog, args, Filename, wait, ErrMsg))
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return;
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sys::Path gv(LLVM_PATH_GV);
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args.clear();
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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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args.push_back(0);
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ErrMsg.clear();
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if (!ExecGraphViewer(gv, args, PSFilename, wait, ErrMsg))
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return;
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#elif HAVE_DOTTY
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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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args.push_back(0);
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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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wait = false;
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#endif
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errs() << "Running 'dotty' program... ";
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if (!ExecGraphViewer(dotty, args, Filename, wait, ErrMsg))
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return;
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#endif
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}
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