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Date: Wed, 4 Mar 2015 08:21:28 +0000
Message-ID: <CAL=_i_mrQziP4_ZECV7U0VQMkdiopfvZcBY8nARfeqC4PWQj_Q@mail.gmail.com>
To: Xinchen Hui <laruence@php.net>
Cc: Dmitry Stogov <dmitry@zend.com>, Anthony Ferrara <ircmaxell@gmail.com>, Zeev Suraski <zeev@zend.com>, 
	PHP Internals <internals@lists.php.net>
Content-Type: multipart/alternative; boundary=047d7bfea3325adee1051072232a
Subject: Re: [PHP-DEV] Re: Zend JIT Open Sourced
From: pthreads@pthreads.org (Joe Watkins)

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Content-Type: text/plain; charset=UTF-8

Just-In-Time-At-Once JITAO

It is a bit different to the thing we think of as JIT ... new names are
good if old names don't fit ...

Cheers
Joe

On Wed, Mar 4, 2015 at 8:03 AM, Xinchen Hui <laruence@php.net> wrote:

> On Wed, Mar 4, 2015 at 3:44 PM, Dmitry Stogov <dmitry@zend.com> wrote:
> > On Tue, Mar 3, 2015 at 10:55 PM, Anthony Ferrara <ircmaxell@gmail.com>
> > wrote:
> >
> >> Dmitry,
> >>
> >> >> So, let's put that to the test, shall we. I compiled and ran the
> "JIT"
> >> >> compiler (can we please stop calling it that, it's not).
> >> >
> >> >
> >> > This is JIT!
> >>
> >> My apologies. I interpreted your reply to an earlier email that you
> >> were doing all of the code generation at compile time, not at runtime.
> >> I should have dug into the code a bit more earlier, but what I looked
> >> at briefly before supported that interpretation.
> >>
> >> However after digging through zend_jit_llvm.cpp a bit more I can see
> >> what you're doing now. You're basically AOT compiling from PHP
> >> directly to LLVM bytecode (a file at a time), then using LLVM's VM and
> >> jit compile to compile to native at runtime. Is that the correct
> >> interpretation?
> >>
> >
> > More or less right, except that term AOT is not correct.
> > We compile PHP file when it's requested (just in time).
> > We compile one PHP file at once, similar to what AOT compiler would do,
> but
> > we compile directly to memory and then execute it,
> With the type inference result we get in runtime.
>
> thanks
> >
> > Thanks. Dmitry.
> >
> >
> >
> >>
> >> Thanks,
> >>
> >> Anthony
> >>
>
>
>
> --
> Xinchen Hui
> @Laruence
> http://www.laruence.com/
>
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> PHP Internals - PHP Runtime Development Mailing List
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