150     int old = my_global_thread_count.load(std::memory_order_relaxed);  in release_thread_sem()  local
152         if( old<=0 ) return;  in release_thread_sem()
153     } while( !my_global_thread_count.compare_exchange_strong(old, old-1) );  in release_thread_sem()
154     if( old>0 ) {  in release_thread_sem()
964                 int old;  in wake_some()  local
966                     old = my_slack.load(std::memory_order_relaxed);  in wake_some()
967                     if( old<=0 ) goto done;  in wake_some()
968                 } while( !my_slack.compare_exchange_strong( old, old-1 ) );  in wake_some()
1010                 int old;  in wake_one_forced()  local
1012                     old = my_slack.load(std::memory_order_relaxed);  in wake_one_forced()
1013                     if( old<=0 ) goto done;  in wake_one_forced()
1014                 } while( !my_slack.compare_exchange_strong( old, old-1 ) );  in wake_one_forced()