>> 
>> The main case where the premise doesn't hold is non-Ovlt.  But we still 
>> don't want spills so we should always compare costs as long as there's 
>> no clear ceiling like spills ("dynamic") or the type ratio 
>> ("conv-dynamic").
>
> Yes, and we mainly focus on non-Ovlt performance as so far, AFAIK all
> our existing cores have been non-Ovlt.
>
> So basically a dynamic max LMUL as it is now should work on Ovlt cores
> quite well.  Maybe we can guard the cost comparison with non-Ovlt
> related tune conditionals?

Just FYI: It's not forgotten.  I'll need to think about it for a bit 
more but I think the general direction is reasonable.  Will get back to 
you here.

-- 
Regards
 Robin

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