C2: Did something just happen to unrolling?

[Vladimir Kozlov]

If Roland's patch will not help, file bug. There were several changes to loop optimizations in past weeks.

Thanks,
Vladimir K

On 4/12/22 8:44 AM, Roland Westrelin wrote:
> 
>> So, does anyone here reading this have any idea what happened in the last month
>> or two? Did someone change the unrolling heuristics?
> 
> Can you try backing out:
> https://github.com/openjdk/jdk/pull/7822
> ?
> 
> It's not supposed to affect non vectorized loop though.
> 
> Roland.
>