_SHORT_ALIGNMENT
(((uintptr_t)sp + _SHORT_ALIGNMENT - 1) &
~(_SHORT_ALIGNMENT - 1));
(((uintptr_t)sp + _SHORT_ALIGNMENT - 1) &
~(_SHORT_ALIGNMENT - 1));
(((uintptr_t)sp + _SHORT_ALIGNMENT - 1) &
~(_SHORT_ALIGNMENT - 1));