src/hotspot/share/utilities/bitMap.cpp

rev 47408 : [mq]: no_cmpxchg_if_null
rev 47401 : [mq]: cmpxchg_if_null
rev 47216 : 8187443: Forest Consolidation: Move files to unified layout
Reviewed-by: darcy, ihse

*** 624,634 ****
      BitMap::idx_t *table = NEW_C_HEAP_ARRAY(idx_t, 256, mtInternal);
      for (uint i = 0; i < 256; i++) {
        table[i] = num_set_bits(i);
      }
  
!     if (!Atomic::cmpxchg_if_null(table, &_pop_count_table)) {
        guarantee(_pop_count_table != NULL, "invariant");
        FREE_C_HEAP_ARRAY(idx_t, table);
      }
    }
  }
--- 624,634 ----
      BitMap::idx_t *table = NEW_C_HEAP_ARRAY(idx_t, 256, mtInternal);
      for (uint i = 0; i < 256; i++) {
        table[i] = num_set_bits(i);
      }
  
!     if (Atomic::cmpxchg(table, &_pop_count_table, (BitMap::idx_t*)NULL) != NULL) {
        guarantee(_pop_count_table != NULL, "invariant");
        FREE_C_HEAP_ARRAY(idx_t, table);
      }
    }
  }