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Date: Sun, 15 Feb 2015 19:50:50 +0100
Message-ID: <CAF+90c_eKH5Dj9eYoPjoeA6AmOGgXw127oVziv5QDYuW8PRVXQ@mail.gmail.com>
To: Dmitry Stogov <dmitry@zend.com>
Cc: Anthony Ferrara <ircmaxell@gmail.com>, Zeev Suraski <zeev@zend.com>, Andrea Faulds <ajf@ajf.me>, 
	Patrick ALLAERT <patrickallaert@php.net>, PHP Internals <internals@lists.php.net>
Content-Type: multipart/alternative; boundary=001a11c34750d43ed2050f24f2b2
Subject: Re: [PHP-DEV] [VOTE] Scalar Type Hints
From: nikita.ppv@gmail.com (Nikita Popov)

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On Sun, Feb 15, 2015 at 7:43 PM, Dmitry Stogov <dmitry@zend.com> wrote:

> Hi Anthony,
>
> If you are working on JIT, you should understand that declare() switch to
> strict typing can't improve anything, because it works on caller side and
> in each function you now will have to generate code for both weak and
> strict checks.
>

Why do these checks have to be generated in the function, instead of
performing checks/casts at the call-site? Naively I would assume this to
perform better, because you can make use of type-information around the
call-site to elide checks/casts. Or does this have adverse effects due to
larger code size or something like that?

Nikita

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