From: Riccardo Lucchese <riccardo.lucchese@gmail.com>
To: gcc-help@gcc.gnu.org
Subject: optimisation question
Date: Thu, 17 May 2007 16:54:00 -0000 [thread overview]
Message-ID: <1179420679.19673.9.camel@desktop> (raw)
Hi!
I'm working on GTK code; let's say we have some code like:
widget->privData->color = ...;
widget->privData->l = ...;
widget->privData->w = ...;
widget->privData->foo = ...;
does gcc already optimise widget->privData saving its value one time and
than using it? or generated binary just does what is written(literally -
"reference per reference")?
Would it be better to do:
WidgetPrivData* priv = widget->privData;
priv->color = ...;
priv->l = ...;
priv->w = ...;
priv->foo = ...;
?
Thank you very much,
Riccardo
riccardo.lucchese@gmail.com
next reply other threads:[~2007-05-17 16:54 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-05-17 16:54 Riccardo Lucchese [this message]
2007-05-17 18:40 ` Ian Lance Taylor
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