83                             std::string &ErrMsg) {  in ExecGraphViewer()  argument
87                             &ErrMsg)) {  in ExecGraphViewer()
88       errs() << "Error: " << ErrMsg << "\n";  in ExecGraphViewer()
94     sys::ExecuteNoWait(ExecPath, args.data(), nullptr, nullptr, 0, &ErrMsg);  in ExecGraphViewer()
138   std::string ErrMsg;  in DisplayGraph()  local
152     if (!ExecGraphViewer(ViewerPath, args, Filename, wait, ErrMsg))  in DisplayGraph()
162     if (!ExecGraphViewer(ViewerPath, args, Filename, wait, ErrMsg))  in DisplayGraph()
174     return ExecGraphViewer(ViewerPath, args, Filename, wait, ErrMsg);  in DisplayGraph()
189     return ExecGraphViewer(ViewerPath, args, Filename, wait, ErrMsg);  in DisplayGraph()
237     if (ExecGraphViewer(GeneratorPath, args, Filename, true, ErrMsg))  in DisplayGraph()
271     ErrMsg.clear();  in DisplayGraph()
272     return ExecGraphViewer(ViewerPath, args, OutputFilename, wait, ErrMsg);  in DisplayGraph()
287     return ExecGraphViewer(ViewerPath, args, Filename, wait, ErrMsg);  in DisplayGraph()