120                             std::string &ErrMsg) {  in ExecGraphViewer()  argument
122     if (sys::ExecuteAndWait(ExecPath, args, None, {}, 0, 0, &ErrMsg)) {  in ExecGraphViewer()
123       errs() << "Error: " << ErrMsg << "\n";  in ExecGraphViewer()
129     sys::ExecuteNoWait(ExecPath, args, None, {}, 0, &ErrMsg);  in ExecGraphViewer()
176   std::string ErrMsg;  in DisplayGraph()  local
189     if (!ExecGraphViewer(ViewerPath, args, Filename, wait, ErrMsg))  in DisplayGraph()
198     if (!ExecGraphViewer(ViewerPath, args, Filename, wait, ErrMsg))  in DisplayGraph()
209     return ExecGraphViewer(ViewerPath, args, Filename, wait, ErrMsg);  in DisplayGraph()
222     return ExecGraphViewer(ViewerPath, args, Filename, wait, ErrMsg);  in DisplayGraph()
269     if (ExecGraphViewer(GeneratorPath, args, Filename, true, ErrMsg))  in DisplayGraph()
302     ErrMsg.clear();  in DisplayGraph()
303     return ExecGraphViewer(ViewerPath, args, OutputFilename, wait, ErrMsg);  in DisplayGraph()
317     return ExecGraphViewer(ViewerPath, args, Filename, wait, ErrMsg);  in DisplayGraph()