Re: rep movsb vs. simpler instructions for memcpy/memmove

On Wed, 12 Mar 2025 16:46:36 +0000, Anton Ertl wrote:

>
So __memmove_ssse3 is no longer that big ("only" 3901 bytes); it's
still the biggest implementation, but many others are quite a bit
bigger than the 0x113=275 bytes of my ssememmove.

Imagine that:: almost a page for memmove entry points.
My 66000 has MM memmove as an instruction (4-bytes) always
optimal, no checking required.

>
- anton