On 9/17/18 4:41 PM, Nir Soffer wrote:

> The FreeBSD version:
>
> #define IS_ALIGNED <http://fxr.watson.org/fxr/ident?i=IS_ALIGNED>(n
> <http://fxr.watson.org/fxr/ident?i=n>,align)     (!((uint32_t)(n
> <http://fxr.watson.org/fxr/ident?i=n>) & (align - 1)))
>
> http://fxr.watson.org/fxr/source/contrib/ncsw/inc/ncsw_ext.h#L182

Which truncates to 32 bits.  But that's what we're trying to get rid of
- by moving to a macro that lets us do full 64-bit alignment if needed.