C++ (Cpp) MCSubtargetInfo::getWriteProcResEnd Beispiele

Beispiel #1

Datei: MCSchedule.cpp Projekt: crabtw/llvm

Optional<double>
MCSchedModel::getReciprocalThroughput(const MCSubtargetInfo &STI,
                                      const MCSchedClassDesc &SCDesc) {
  Optional<double> Throughput;
  const MCSchedModel &SM = STI.getSchedModel();
  const MCWriteProcResEntry *I = STI.getWriteProcResBegin(&SCDesc);
  const MCWriteProcResEntry *E = STI.getWriteProcResEnd(&SCDesc);
  for (; I != E; ++I) {
    if (!I->Cycles)
      continue;
    unsigned NumUnits = SM.getProcResource(I->ProcResourceIdx)->NumUnits;
    double Temp = NumUnits * 1.0 / I->Cycles;
    Throughput = Throughput ? std::min(Throughput.getValue(), Temp) : Temp;
  }
  return Throughput ? 1 / Throughput.getValue() : Throughput;
}