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src/hotspot/share/utilities/singleWriterSynchronizer.hpp

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@@ -87,15 +87,15 @@
   // RAII class for managing enter/exit pairs.
   class CriticalSection;
 };
 
 inline uint SingleWriterSynchronizer::enter() {
-  return Atomic::add(2u, &_enter);
+  return Atomic::add(&_enter, 2u);
 }
 
 inline void SingleWriterSynchronizer::exit(uint enter_value) {
-  uint exit_value = Atomic::add(2u, &_exit[enter_value & 1]);
+  uint exit_value = Atomic::add(&_exit[enter_value & 1], 2u);
   // If this exit completes a synchronize request, wakeup possibly
   // waiting synchronizer.  Read of _waiting_for must follow the _exit
   // update.
   if (exit_value == _waiting_for) {
     _wakeup.signal();
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