Re: auto-vectorize varbit bitwise operators

[Heikki Linnakangas]

On 02/09/2026 21:57, Nathan Bossart wrote:
After adding -ftree-vectorize and moving the loop boundary computations to
outside the loops, popular compilers will auto-vectorize bit_and(),
bit_or(), bitxor(), and bitnot().  My testing indicates this produces some
nice speedups, but I haven't yet done anything scientific enough to share.
Dunno if these are particularly worth optimizing, but regardless of 
performance, I think the loop code looks better with these changes anyway.

- Heikki