Re: Old ARM Neon code for salsa20 and chacha

Hello Niels,

On Thu, Jan 28, 2021 at 07:26:46PM +0100, Niels Möller wrote:

...

With the new 2-way or 3-way functions, performance of the single-block functions isn't that critical, so deletion may be ok even if it causes some small regression on some processors (e.g., single-block chacha getting 13% slower on the old Cortex-A9)

I've made a branch with deletion of this code, "delete-1-way-neon". Any comments before I merge to master?

Removing them also lowers the amount of code to maintain. I've done a few quick builds of the branch with and without assembly and NEON in particular enabled. All combinations build, run the testsuite and benchmark results look consistent to me.