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

rev 14453 : Remove secondary marking bitmap.

*** 385,418 ****
    } else {
      st->print("| ");
    }
    st->print("|CP " SIZE_FORMAT_W(3), _critical_pins);
  
!   st->print_cr("|TAMS " PTR_FORMAT ", " PTR_FORMAT "|",
!                p2i(ShenandoahHeap::heap()->complete_top_at_mark_start(_bottom)),
!                p2i(ShenandoahHeap::heap()->next_top_at_mark_start(_bottom)));
! }
! 
! void ShenandoahHeapRegion::object_iterate_interruptible(ObjectClosure* blk, bool allow_cancel) {
!   HeapWord* p = bottom() + BrooksPointer::word_size();
!   while (p < top() && !(allow_cancel && _heap->cancelled_concgc())) {
!     blk->do_object(oop(p));
!     p += oop(p)->size() + BrooksPointer::word_size();
!   }
! }
! 
! HeapWord* ShenandoahHeapRegion::object_iterate_careful(ObjectClosureCareful* blk) {
!   HeapWord * limit = concurrent_iteration_safe_limit();
!   assert(limit <= top(), "sanity check");
!   for (HeapWord* p = bottom() + BrooksPointer::word_size(); p < limit;) {
!     size_t size = blk->do_object_careful(oop(p));
!     if (size == 0) {
!       return p;  // failed at p
!     }
!     p += size + BrooksPointer::word_size();
!   }
!   return NULL; // all done
  }
  
  void ShenandoahHeapRegion::oop_iterate(ExtendedOopClosure* blk) {
    if (!is_active()) return;
    if (is_humongous()) {
--- 385,396 ----
    } else {
      st->print("| ");
    }
    st->print("|CP " SIZE_FORMAT_W(3), _critical_pins);
  
!   st->print_cr("|TAMS " PTR_FORMAT "|",
!                p2i(ShenandoahHeap::heap()->top_at_mark_start(_bottom)));
  }
  
  void ShenandoahHeapRegion::oop_iterate(ExtendedOopClosure* blk) {
    if (!is_active()) return;
    if (is_humongous()) {
*** 478,492 ****
  
    // Reset seq numbers
    _first_alloc_seq_num = 0;
    _last_alloc_seq_num = 0;
  
!   // Reset C-TAMS pointer to ensure size-based iteration, everything
    // in that regions is going to be new objects.
!   _heap->set_complete_top_at_mark_start(bottom(), bottom());
!   // We can only safely reset the C-TAMS pointer if the bitmap is clear for that region.
!   assert(_heap->is_complete_bitmap_clear_range(bottom(), end()), "must be clear");
  
    make_empty_committed();
  }
  
  void ShenandoahHeapRegion::recycle() {
--- 456,470 ----
  
    // Reset seq numbers
    _first_alloc_seq_num = 0;
    _last_alloc_seq_num = 0;
  
!   // Reset TAMS pointer to ensure size-based iteration, everything
    // in that regions is going to be new objects.
!   _heap->set_top_at_mark_start(bottom(), bottom());
!   // We can only safely reset the TAMS pointer if the bitmap is clear for that region.
!   assert(_heap->is_bitmap_clear_range(bottom(), end()), "must be clear");
  
    make_empty_committed();
  }
  
  void ShenandoahHeapRegion::recycle() {