On Wed, Jan 19, 2022 at 8:48 PM Niels Möller <ni...@lysator.liu.se> wrote:
> Maamoun TK <maamoun...@googlemail.com> writes: > > > I created merge requests that have improvements of Chacha20 for arm64 and > > s390x architectures by following the approach used in powerpc > > implementation. > > https://git.lysator.liu.se/nettle/nettle/-/merge_requests/37 > > https://git.lysator.liu.se/nettle/nettle/-/merge_requests/40 > > The patches have 80.85% speedup for arm64 arch and 284.79% speedup for > > s390x arch. > > Nice, I've had a quick first look. > > > It would be nice if the arm64 patch will be tested on big-endian mode > since > > I don't have access to any big-endian variant for testing. > > I've merged the arm64 code to a branch, for CI testing. > > For the ARM code, which instructions are provided by the asimd > extension? Basic simd is always available, if I've understood correctly. > As far as I understand, SIMD is called Advanced SIMD on AArch64 and it's standard for this architecture. simd is enabled by default in GCC but it can be disabled with nosimd option as I can see in here https://gcc.gnu.org/onlinedocs/gcc/AArch64-Options.html which is why I made a specific config option for it. regards, Mamone > Regards, > /Niels > > -- > Niels Möller. PGP key CB4962D070D77D7FCB8BA36271D8F1FF368C6677. > Internet email is subject to wholesale government surveillance. > _______________________________________________ nettle-bugs mailing list nettle-bugs@lists.lysator.liu.se http://lists.lysator.liu.se/mailman/listinfo/nettle-bugs
