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

rev 14453 : Remove secondary marking bitmap.

*** 215,227 ****
    void work(uint worker_id) {
      ShenandoahCollectionSet* cset = _heap->collection_set();
      ShenandoahHeapRegion* r = cset->claim_next();
      while (r != NULL) {
        HeapWord* bottom = r->bottom();
!       HeapWord* top = _heap->complete_top_at_mark_start(r->bottom());
        if (top > bottom) {
!         _heap->complete_mark_bit_map()->clear_range_large(MemRegion(bottom, top));
        }
        r = cset->claim_next();
      }
    }
  
--- 215,227 ----
    void work(uint worker_id) {
      ShenandoahCollectionSet* cset = _heap->collection_set();
      ShenandoahHeapRegion* r = cset->claim_next();
      while (r != NULL) {
        HeapWord* bottom = r->bottom();
!       HeapWord* top = _heap->top_at_mark_start(r->bottom());
        if (top > bottom) {
!         _heap->mark_bit_map()->clear_range_large(MemRegion(bottom, top));
        }
        r = cset->claim_next();
      }
    }
  
*** 252,262 ****
  
  bool ShenandoahPartialGC::prepare() {
    _heap->collection_set()->clear();
    assert(_heap->collection_set()->count() == 0, "collection set not clear");
  
!   _heap->ensure_parsability(true);
  
    ShenandoahConnectionMatrix* matrix = _heap->connection_matrix();
  
    if (UseShenandoahMatrix && PrintShenandoahMatrix) {
      LogTarget(Info, gc) lt;
--- 252,262 ----
  
  bool ShenandoahPartialGC::prepare() {
    _heap->collection_set()->clear();
    assert(_heap->collection_set()->count() == 0, "collection set not clear");
  
!   _heap->make_tlabs_parsable(true);
  
    ShenandoahConnectionMatrix* matrix = _heap->connection_matrix();
  
    if (UseShenandoahMatrix && PrintShenandoahMatrix) {
      LogTarget(Info, gc) lt;