src/share/vm/gc/shenandoah/shenandoahConcurrentThread.cpp

rev 13125 : imported patch update-refs.patch

*** 171,180 ****
--- 171,198 ----
      GCTraceTime(Info, gc) time("Concurrent evacuation ", gc_timer, GCCause::_no_gc, true);
      TraceCollectorStats tcs(heap->monitoring_support()->concurrent_collection_counters());
      heap->do_evacuation();
    }
  
+   // Do an update-refs phase if required.
+   if (check_cancellation()) return;
+ 
+   if (heap->shenandoahPolicy()->update_refs_early()) {
+ 
+     VM_ShenandoahPreUpdateRoots pre_update_roots;
+     VMThread::execute(&pre_update_roots);
+ 
+     {
+       GCTraceTime(Info, gc) time("Concurrent update references ", gc_timer, GCCause::_no_gc, true);
+       heap->concurrent_update_heap_references();
+     }
+     if (check_cancellation()) return;
+ 
+     VM_ShenandoahPostUpdateRoots post_update_roots;
+     VMThread::execute(&post_update_roots);
+   }
+ 
    // Prepare for the next normal cycle:
    if (check_cancellation()) return;
  
    {
      GCTraceTime(Info, gc) time("Concurrent reset bitmaps", gc_timer, GCCause::_no_gc);