257         first_byte(kFbUnknown),  in SearchParams()
269     int first_byte;  member
284     StartInfo() : start(NULL), first_byte(kFbUnknown) {}  in StartInfo()
286     std::atomic<int> first_byte;  member
1177     start_[i].first_byte.store(kFbUnknown, std::memory_order_relaxed);  in ResetCache()
1378         if ((p = BytePtr(memchr(p, params->first_byte, ep - p))) == NULL) {  in InlinedSearchLoop()
1383         if ((p = BytePtr(memrchr(ep, params->first_byte, p - ep))) == NULL) {  in InlinedSearchLoop()
1589                            params->first_byte >= 0,  in SlowSearchLoop()
1610   bool have_first_byte = params->first_byte >= 0;  in FastSearchLoop()
1706             DumpState(info->start).c_str(), info->first_byte.load());  in AnalyzeSearch()
1709   params->first_byte = info->first_byte.load(std::memory_order_acquire);  in AnalyzeSearch()
1718   int fb = info->first_byte.load(std::memory_order_acquire);  in AnalyzeSearchHelper()
1723   fb = info->first_byte.load(std::memory_order_relaxed);  in AnalyzeSearchHelper()
1737     info->first_byte.store(kFbNone, std::memory_order_release);  in AnalyzeSearchHelper()
1743     info->first_byte.store(kFbNone, std::memory_order_release);  // will be ignored  in AnalyzeSearchHelper()
1751   int first_byte = prog_->first_byte();  in AnalyzeSearchHelper()  local
1752   if (first_byte == -1 ||  in AnalyzeSearchHelper()
1755     first_byte = kFbNone;  in AnalyzeSearchHelper()
1758   info->first_byte.store(first_byte, std::memory_order_release);  in AnalyzeSearchHelper()