RFR[M]: Adding MD5 Intrinsic on x86-64
Vivek Deshpande
viv.desh at gmail.com
Mon Aug 3 22:08:22 UTC 2020
Hi Vladimir
It seems that the algorithm can be optimized further using SSE/AVX
instructions. I am not aware of any specific SSE/AVX implementation which
leverages those instructions in the best possible way. Sandhya can chime
in more on that.
As far as I know, I came across this which points to MD5 SSE/AVX
implementation.
https://software.intel.com/content/www/us/en/develop/articles/intel-isa-l-cryptographic-hashes-for-cloud-storage.html
Regards,
Vivek
On Mon, Aug 3, 2020 at 12:21 PM Vladimir Kozlov <vladimir.kozlov at oracle.com>
wrote:
> I reproduced crash with only MD5 changes on my local linux machine during
> fastdebug build.
>
> Next code in inline_digestBase_implCompressMB should be reversed
> (get_long_*() should be called for long_state):
>
> if (long_state) {
> state = get_state_from_digestBase_object(digestBase_obj);
> } else {
> state = get_long_state_from_digestBase_object(digestBase_obj);
> }
>
> Vladimir K
>
> On 8/3/20 11:52 AM, Ludovic Henry wrote:
> >> But it looks like it has more changes (windows_aarch64) then just MD5
> intrinsic.
> >> I will retest again with removed other changes.
> >
> > That looks like a mistake with me learning to use Mercurial, sorry about
> that.
> >
> > The only patch you need is `8250902: Implement MD5 Intrinsics on x86`,
> all the others are my mistake.
> >
> >
>
--
Thanks and Regards,
Vivek Deshpande
viv.desh at gmail.com
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