src/hotspot/share/gc/g1/g1Allocator.cpp

rev 55404 : 8226197: Reducing G1?s CPU cost with simplified write post-barrier and disabling concurrent refinement
Summary: A prototype to add a mode for G1 to use a simplified write post-barrier. Guarded by new flag G1FastWriteBarrier.

*** 202,212 ****
                                                                     actual_word_size);
      if (result == NULL) {
        set_survivor_full();
      }
    }
!   if (result != NULL) {
      _g1h->dirty_young_block(result, *actual_word_size);
    }
    return result;
  }
  
--- 202,212 ----
                                                                     actual_word_size);
      if (result == NULL) {
        set_survivor_full();
      }
    }
!   if (!G1FastWriteBarrier && result != NULL) {
      _g1h->dirty_young_block(result, *actual_word_size);
    }
    return result;
  }