src/hotspot/share/gc/g1/g1CodeCacheRemSet.cpp

rev 47400 : [mq]: cmpxchg_ptr
rev 47404 : [mq]: load_ptr_acquire
rev 47406 : [mq]: assembler_cmpxchg

*** 153,175 ****
  G1CodeRootSet::~G1CodeRootSet() {
    delete _table;
  }
  
  G1CodeRootSetTable* G1CodeRootSet::load_acquire_table() {
!   return (G1CodeRootSetTable*) OrderAccess::load_ptr_acquire(&_table);
  }
  
  void G1CodeRootSet::allocate_small_table() {
    G1CodeRootSetTable* temp = new G1CodeRootSetTable(SmallSize);
  
!   OrderAccess::release_store_ptr(&_table, temp);
  }
  
  void G1CodeRootSetTable::purge_list_append(G1CodeRootSetTable* table) {
    for (;;) {
      table->_purge_next = _purge_list;
!     G1CodeRootSetTable* old = (G1CodeRootSetTable*) Atomic::cmpxchg_ptr(table, &_purge_list, table->_purge_next);
      if (old == table->_purge_next) {
        break;
      }
    }
  }
--- 153,175 ----
  G1CodeRootSet::~G1CodeRootSet() {
    delete _table;
  }
  
  G1CodeRootSetTable* G1CodeRootSet::load_acquire_table() {
!   return OrderAccess::load_acquire(&_table);
  }
  
  void G1CodeRootSet::allocate_small_table() {
    G1CodeRootSetTable* temp = new G1CodeRootSetTable(SmallSize);
  
!   OrderAccess::release_store(&_table, temp);
  }
  
  void G1CodeRootSetTable::purge_list_append(G1CodeRootSetTable* table) {
    for (;;) {
      table->_purge_next = _purge_list;
!     G1CodeRootSetTable* old = Atomic::cmpxchg(table, &_purge_list, table->_purge_next);
      if (old == table->_purge_next) {
        break;
      }
    }
  }
*** 189,199 ****
  
    _table->copy_to(temp);
  
    G1CodeRootSetTable::purge_list_append(_table);
  
!   OrderAccess::release_store_ptr(&_table, temp);
  }
  
  void G1CodeRootSet::purge() {
    G1CodeRootSetTable::purge();
  }
--- 189,199 ----
  
    _table->copy_to(temp);
  
    G1CodeRootSetTable::purge_list_append(_table);
  
!   OrderAccess::release_store(&_table, temp);
  }
  
  void G1CodeRootSet::purge() {
    G1CodeRootSetTable::purge();
  }