src/hotspot/share/gc/parallel/psParallelCompact.cpp

rev 49944 : imported patch 8201492-properly-implement-non-contiguous-reference-processing
rev 49945 : imported patch 8201492-stefanj-review

*** 115,124 ****
--- 115,125 ----
  const ParallelCompactData::RegionData::region_sz_t
  ParallelCompactData::RegionData::dc_completed = 0xcU << dc_shift;
  
  SpaceInfo PSParallelCompact::_space_info[PSParallelCompact::last_space_id];
  
+ SpanSubjectToDiscoveryClosure PSParallelCompact::_span_discoverer;
  ReferenceProcessor* PSParallelCompact::_ref_processor = NULL;
  
  double PSParallelCompact::_dwl_mean;
  double PSParallelCompact::_dwl_std_dev;
  double PSParallelCompact::_dwl_first_term;
*** 841,853 ****
  
  bool PSParallelCompact::IsAliveClosure::do_object_b(oop p) { return mark_bitmap()->is_marked(p); }
  
  void PSParallelCompact::post_initialize() {
    ParallelScavengeHeap* heap = ParallelScavengeHeap::heap();
!   MemRegion mr = heap->reserved_region();
    _ref_processor =
!     new ReferenceProcessor(mr,            // span
                             ParallelRefProcEnabled && (ParallelGCThreads > 1), // mt processing
                             ParallelGCThreads, // mt processing degree
                             true,              // mt discovery
                             ParallelGCThreads, // mt discovery degree
                             true,              // atomic_discovery
--- 842,854 ----
  
  bool PSParallelCompact::IsAliveClosure::do_object_b(oop p) { return mark_bitmap()->is_marked(p); }
  
  void PSParallelCompact::post_initialize() {
    ParallelScavengeHeap* heap = ParallelScavengeHeap::heap();
!   _span_discoverer.set_span(heap->reserved_region());
    _ref_processor =
!     new ReferenceProcessor(&_span_discoverer,   // span
                             ParallelRefProcEnabled && (ParallelGCThreads > 1), // mt processing
                             ParallelGCThreads,   // mt processing degree
                             true,                // mt discovery
                             ParallelGCThreads,   // mt discovery degree
                             true,                // atomic_discovery