Esempi in C++ (Cpp) per SUnit::setDepthDirty

Esempio n. 1

File: ScheduleDAG.cpp Progetto: Abocer/android-4.2_r1

/// ComputeDepth - Calculate the maximal path from the node to the exit.
///
void SUnit::ComputeDepth() {
  SmallVector<SUnit*, 8> WorkList;
  WorkList.push_back(this);
  do {
    SUnit *Cur = WorkList.back();

    bool Done = true;
    unsigned MaxPredDepth = 0;
    for (SUnit::const_pred_iterator I = Cur->Preds.begin(),
         E = Cur->Preds.end(); I != E; ++I) {
      SUnit *PredSU = I->getSUnit();
      if (PredSU->isDepthCurrent)
        MaxPredDepth = std::max(MaxPredDepth,
                                PredSU->Depth + I->getLatency());
      else {
        Done = false;
        WorkList.push_back(PredSU);
      }
    }

    if (Done) {
      WorkList.pop_back();
      if (MaxPredDepth != Cur->Depth) {
        Cur->setDepthDirty();
        Cur->Depth = MaxPredDepth;
      }
      Cur->isDepthCurrent = true;
    }
  } while (!WorkList.empty());
}