Regression in version 0.12.130

[karajan9]

Some of my code isn't able to be @turboed anymore since version 0.12.130. Specifically, I'm getting a

┌ Warning: #= ... =#:
│ `LoopVectorization.check_args` on your inputs failed; running fallback `@inbounds @fastmath` loop instead.

and ~3x slowdown on code that worked fine on version 0.12.129.

I'm not sure if I'll be allowed to share the code. Is there any information I could help with while I try to figure this out?

[karajan9]

After looking through the changes I think it was making safe=true the default.
Since replacing every instance of a^2 by a*a and ifelse by my_ifelse(decider, a, b) = decider * a + (1 - decider) * b I have achieved the old performance again.
I'm not sure if that was the intention behind the change but if so I can certainly live with the changes I made.

[chriselrod]

Hi, regressions where @turbo worked before were not the intention.
can_turbo should return true for ifelse and ^.
I'll have changes shortly that make this so.

Please feel free to file issues or create PRs for any more such problems.

[chriselrod]

Please let me know if your original versions encounter any problems. They should work now.

[karajan9]

I can confirm that the original code now again runs with original speed (and no warning).
Thanks for looking into this and all the work you have been doing on this project! Truly a gamechanger.