BACKING_STORE_ALIGNMENT  849 gc/os_dep.c                       & ~(BACKING_STORE_ALIGNMENT - 1));
BACKING_STORE_ALIGNMENT  917 gc/os_dep.c    	  result += BACKING_STORE_ALIGNMENT - 1;
BACKING_STORE_ALIGNMENT  918 gc/os_dep.c    	  result &= ~(BACKING_STORE_ALIGNMENT - 1);