Messages in this thread | | | Date | Tue, 12 May 2009 10:45:00 -0700 | Subject | Re: Specific support for Intel Atom architecture | From | Ulrich Drepper <> |
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On Tue, May 12, 2009 at 8:04 AM, Andi Kleen <andi@firstfloor.org> wrote: > The problem is that you can't express the situations where > movbe is better than bswap (you need both and the old and the new > value) in inline assembler in a way that gcc decides automatically.
True. But I was mostly thinking about loads from memory. A quick search for ntoh*/hton* shows code like
u_int16_t queue_num = ntohs(nfmsg->res_id);
If there would be a ntohs_load() macro movbe could be used.
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