auto cluster = op->getAttrOfType<StringAttr>(TF::kTpuReplicateAttr).str();
  if (metadata_map.find(cluster) == metadata_map.end()) return false;
  auto metadata = metadata_map[cluster];
  if (!metadata.getAllowSoftPlacement() &&
      !op->hasAttr(TF::kXlaOutsideCompilationAttr))
    return true;
  std::string device = "";
  if (op->hasAttr(TF::kDeviceAttr))
    device = op->getAttrOfType<StringAttr>(TF::kDeviceAttr).str();