Re: What's the status of the JIT?
| From: | Gina P. Banyard | Date: | Sat, 22 Nov 2025 21:51:06 +0000 |
| Subject: | Re: What's the status of the JIT? | ||
| References: | 1 2 | Groups: | php.internals |
| Request: | Send a blank email to internals+get-129402@lists.php.net to get a copy of this message | ||
On Friday, 21 November 2025 at 15:25, Arnaud Le Blanc <arnaud.lb@gmail.com> wrote:
> Regarding the impact of the JIT on internal development, I believe
> that it's relatively low:
>
> * The JIT is known to be a bit unstable yet, and there are occasional
> JIT bug reports, but these affect only the JIT and deployments with
> JIT enabled
> * Changes to the VM are likely to require changes to the JIT as well,
> but this is not the majority of the work
> * Language changes, such as those proposed in RFCs, often require JIT
> changes as well. But RFCs are not required to implement JIT changes
> before voting, so this only adds overhead on accepted RFCs. This
> represents a very small fraction of the work required on an RFC.
> * Other changes don't usually need to care about the JIT
>
> Best Regards,
> Arnaud
To expand on this, the only times I really need to touch the JIT is when proposing language
deprecations.
Even when working on the Container/Offset RFC, the tweaking of the JIT was relatively
straight-forward.
Best regards,
Gina P. Banyard