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In-Reply-To: <5203a083-4932-b564-1f23-6a4eb2f9fe8c@zend.com>
Date: Mon, 4 Feb 2019 09:59:19 +0100
Message-ID: <CAF+90c8DOtbN8RH=i4-E6=XCRGE_oVH-JVmS-tmQeKTevmwKDg@mail.gmail.com>
To: Dmitry Stogov <dmitry@zend.com>
Cc: Zeev Suraski <vsuraski@gmail.com>, Jan Ehrhardt <phpdev@ehrhardt.nl>, 
	PHP internals <internals@lists.php.net>
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Subject: Re: [PHP-DEV] [RFC] JIT
From: nikita.ppv@gmail.com (Nikita Popov)

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On Mon, Feb 4, 2019 at 8:30 AM Dmitry Stogov <dmitry@zend.com> wrote:

>
>
> On 2/3/19 9:00 PM, Nikita Popov wrote:
> > On Sun, Feb 3, 2019 at 5:16 PM Zeev Suraski <vsuraski@gmail.com> wrote:
> >
> >>
> >>> On 3 Feb 2019, at 16:43, Jan Ehrhardt <phpdev@ehrhardt.nl> wrote:
> >>>
> >>> Zeev Suraski in php.internals (Sun, 3 Feb 2019 11:02:56 +0000):
> >>>>
> >>>>
> >>>> How is that related?
> >>>
> >>> It is directly related with your statement that "developers with other
> >>> host OSs still use Linux for the actual PHP development". They don't
> use
> >>> Linux for the actual PHP development. They are using Windows.
> >>
> >> That statement was in a certain context - for those who use containers
> and
> >> Linux VMs, which is (as mentioned) a growing trend.  I think it's clear
> >> that I'm not claiming it's everyone, or even the majority - but if it
> >> wasn't clear - it should be now...
> >>
> >> Zeev
> >>
> >
> > I feel like this discussion ended up going a bit astray, with a focus on
> > only the issue of Windows support... While I think that we should
> endeavor
> > to support at least Windows and MacOS before the JIT hits a release
> version
> > of PHP, at this point in time (and for the purposes of the vote) the
> > questions of maintenance and stability are the most important.
>
> If we don't start, we definitively won't get support.
>
>
> > Ultimately
> > those questions can't really be answered until interested parties have
> > reviewed the JIT codebase. To that end it would be helpful if:
> >
> > a) A PR of the JIT branch could be submitted against php-src, so there
> is a
> > place for review comments and more technical discussions. (It might be
> > necessary to squash, as GH doesn't deal with large history well.)
>
> OK. Not sure about re-base.
>
> > b) The RFC (or some other place) is extended with some high-level design
> > information on how the JIT works on a technical level. Some notes on how
> > JIT bugs are usually debugged would also be very helpful.
>
>
> OK. I'll try to extend RFC with some design elements.
>
> Thanks. Dmitry.
>

Thanks! Looks like the PR is here: https://github.com/php/php-src/pull/3792

Also, Joe has put up the JIT branch on the r11 lxr, which should make
browsing the code easier:
https://lxr.room11.org/xref/php-src%40jit/ext/opcache/jit/

Nikita

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