src/share/vm/utilities/bitMap.cpp

rev 10387 : 8151436: Leaner ArrayAllocator and BitMaps
Reviewed-by: tschatzl, pliden, kbarrett

*** 28,45 ****
  #include "runtime/atomic.inline.hpp"
  #include "utilities/bitMap.inline.hpp"
  #include "utilities/copy.hpp"
  
  BitMap::BitMap(bm_word_t* map, idx_t size_in_bits) :
!   _map(map), _size(size_in_bits), _map_allocator(false)
  {
    assert(sizeof(bm_word_t) == BytesPerWord, "Implementation assumption.");
  }
  
  
  BitMap::BitMap(idx_t size_in_bits, bool in_resource_area) :
!   _map(NULL), _size(0), _map_allocator(false)
  {
    assert(sizeof(bm_word_t) == BytesPerWord, "Implementation assumption.");
    resize(size_in_bits, in_resource_area);
  }
  
--- 28,45 ----
  #include "runtime/atomic.inline.hpp"
  #include "utilities/bitMap.inline.hpp"
  #include "utilities/copy.hpp"
  
  BitMap::BitMap(bm_word_t* map, idx_t size_in_bits) :
!   _map(map), _size(size_in_bits)
  {
    assert(sizeof(bm_word_t) == BytesPerWord, "Implementation assumption.");
  }
  
  
  BitMap::BitMap(idx_t size_in_bits, bool in_resource_area) :
!   _map(NULL), _size(0)
  {
    assert(sizeof(bm_word_t) == BytesPerWord, "Implementation assumption.");
    resize(size_in_bits, in_resource_area);
  }
  
*** 52,62 ****
    if (in_resource_area) {
      _map = NEW_RESOURCE_ARRAY(bm_word_t, new_size_in_words);
      Copy::disjoint_words((HeapWord*)old_map, (HeapWord*) _map,
                           MIN2(old_size_in_words, new_size_in_words));
    } else {
!     _map = _map_allocator.reallocate(new_size_in_words);
    }
  
    if (new_size_in_words > old_size_in_words) {
      clear_range_of_words(old_size_in_words, new_size_in_words);
    }
--- 52,62 ----
    if (in_resource_area) {
      _map = NEW_RESOURCE_ARRAY(bm_word_t, new_size_in_words);
      Copy::disjoint_words((HeapWord*)old_map, (HeapWord*) _map,
                           MIN2(old_size_in_words, new_size_in_words));
    } else {
!     _map = ArrayAllocator<bm_word_t, mtInternal>::reallocate(old_map, old_size_in_words, new_size_in_words);
    }
  
    if (new_size_in_words > old_size_in_words) {
      clear_range_of_words(old_size_in_words, new_size_in_words);
    }