Re: [PATCH v2 1/4] siphash: add cryptographically secure hashtable function

Peter Zijlstra
2016-12-15T22:08:43Z

On Thu, Dec 15, 2016 at 09:43:04PM +0100, Jason A. Donenfeld wrote:
> On Thu, Dec 15, 2016 at 9:31 PM, Hannes Frederic Sowa
> <hannes@stressinduktion.org> wrote:
> > ARM64 and x86-64 have memory operations that are not vector operations
> > that operate on 128 bit memory.
>
> Fair enough. imull I guess.

imull is into rdx:rax, not memory. I suspect he's talking about
cmpxchg16b.