+};
+
+static const char *getProgramName(GraphProgram::Name program) {
+ switch (program) {
+ case GraphProgram::DOT:
+ return "dot";
+ case GraphProgram::FDP:
+ return "fdp";
+ case GraphProgram::NEATO:
+ return "neato";
+ case GraphProgram::TWOPI:
+ return "twopi";
+ case GraphProgram::CIRCO:
+ return "circo";
+ }
+ llvm_unreachable("bad kind");
+}
+
+bool llvm::DisplayGraph(StringRef FilenameRef, bool wait,
+ GraphProgram::Name program) {
+ std::string Filename = FilenameRef;
+ wait &= !ViewBackground;
+ std::string ErrMsg;
+ std::string ViewerPath;
+ GraphSession S;
+
+ // Graphviz
+ if (S.TryFindProgram("Graphviz", ViewerPath)) {
+ std::vector<const char *> args;
+ args.push_back(ViewerPath.c_str());
+ args.push_back(Filename.c_str());
+ args.push_back(nullptr);
+
+ errs() << "Running 'Graphviz' program... ";
+ return ExecGraphViewer(ViewerPath, args, Filename, wait, ErrMsg);
+ }
+
+ // xdot
+ if (S.TryFindProgram("xdot|xdot.py", ViewerPath)) {
+ std::vector<const char *> args;
+ args.push_back(ViewerPath.c_str());
+ args.push_back(Filename.c_str());
+
+ args.push_back("-f");
+ args.push_back(getProgramName(program));
+
+ args.push_back(nullptr);
+
+ errs() << "Running 'xdot.py' program... ";
+ return ExecGraphViewer(ViewerPath, args, Filename, wait, ErrMsg);