看看这句话该怎么翻译？

//
    // Enable lazy stacking for interrupt handlers.  This allows floating-point
    // instructions to be used within interrupt handlers, but at the expense of
    // extra stack usage.
    //
    ROM_FPULazyStackingEnable();

"lazy stacking"应该翻译成“扩展堆栈”还是“懒堆”，大伙讨论一下！！！

The Cortex-M4F adds a feature called lazy stacking


扩展堆栈好一些吧