43     if (Error Err = runCycle())  in run()  local
44       return std::move(Err);  in run()
53   Error Err = ErrorSuccess();  in runCycle()  local
55   for (auto I = Stages.rbegin(), E = Stages.rend(); I != E && !Err; ++I) {  in runCycle()
58       Err = S->cycleResume();  in runCycle()
60       Err = S->cycleStart();  in runCycle()
68   while (!Err && FirstStage.isAvailable(IR))  in runCycle()
69     Err = FirstStage.execute(IR);  in runCycle()
71   if (Err.isA<InstStreamPause>()) {  in runCycle()
73     return Err;  in runCycle()
78     Err = S->cycleEnd();  in runCycle()
79     if (Err)  in runCycle()
83   return Err;  in runCycle()