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Date: Fri, 15 Sep 2023 15:03:27 +0200
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Subject: Re: [PHP-DEV] A new JIT engine for PHP-8.4/9
From: php-internals_nospam@adviesenzo.nl (Juliette Reinders Folmer)

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On 15-9-2023 12:15, Dmitry Stogov wrote:
> Hi,
>
> After the code-review feedback, one of the most questionable decisions was
> changed.
> Instead of including IR Framework as a git submodule, now its part is
> embedded into php-src.
> This will complicate the IR/JIT development a bit, but will simplify things
> for everyone else.
>
> I'm going to merge https://github.com/php/php-src/pull/12079 into master
> next week.
> If someone likes to take a look before, please do it now.
>
> After the merge, I don't plan to do active PHP-JIT development  for 1-2
> months (I'll wait for problems, bugs, etc and work on general IR
> improvements).
> Then, in case of no major problems, I'm going to remove the old JIT
> implementation and make a PHP-JIT code-cleanup pass.
>
> Thanks. Dmitry.
>
>
> On Mon, Sep 11, 2023 at 12:28 PM Dmitry Stogov <dmitrystogov@gmail.com>
> wrote:
>
>> Hi internals,
>>
>> I'm glad to present a new JIT engine that is going to be used in the next
>> major PHP version. Now it's a real optimizing compiler with Intermediate
>> Representation similar to Java HotSpot server compiler.
>>
>> It makes a base for future improvements and eliminates many low-level
>> details of the existing PHP JIT. Instead of supporting assembler code for
>> different CPUs, now PHP generates a single IR and passes it to a
>> PHP-independent JIT engine.
>>
>> The old JIT implementation is going to be kept for a while.
>>
>> Everybody are welcome to take a look over tne code
>> https://github.com/php/php-src/pull/12079
>>
>> Thanks. Dmitry.
>>

If merged to `master`, will that automatically mean that the next 
version of PHP will be PHP 9.0 ?

If so, would that warrant a separate discussion ? (whether there should 
still be a 8.4/8.5/8.6 or not)

Smile,
Juliette

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