/// RegisterStatistic - The first time a statistic is bumped, this method is
/// called.
void Statistic::RegisterStatistic() {
  // If stats are enabled, inform StatInfo that this statistic should be
  // printed.
  if (Enabled)
    StatInfo->addStatistic(this);
  // Remember we have been registered.
  Initialized = true;
}
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/// RegisterStatistic - The first time a statistic is bumped, this method is
/// called.
void Statistic::RegisterStatistic() {
  // If stats are enabled, inform StatInfo that this statistic should be
  // printed.
  sys::SmartScopedLock<true> Writer(*StatLock);
  if (!Initialized) {
    if (Enabled)
      StatInfo->addStatistic(this);
    
    sys::MemoryFence();
    // Remember we have been registered.
    Initialized = true;
  }
}
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/// RegisterStatistic - The first time a statistic is bumped, this method is
/// called.
void Statistic::RegisterStatistic() {
  // If stats are enabled, inform StatInfo that this statistic should be
  // printed.
  sys::SmartScopedLock<true> Writer(*StatLock);
  if (!Initialized) {
    if (Stats || Enabled)
      StatInfo->addStatistic(this);

    TsanHappensBefore(this);
    sys::MemoryFence();
    // Remember we have been registered.
    TsanIgnoreWritesBegin();
    Initialized = true;
    TsanIgnoreWritesEnd();
  }
}