From: Nicolas Pitre <nico@fluxnic.net>
To: Chris Ball <cjb@laptop.org>
Cc: linux-mmc@vger.kernel.org
Subject: Re: [PATCH 1/3] mmc: initialize struct mmc_command at declaration time
Date: Fri, 15 Apr 2011 18:37:40 -0400 (EDT) [thread overview]
Message-ID: <alpine.LFD.2.00.1104151836290.24613@xanadu.home> (raw)
In-Reply-To: <m3zknrs822.fsf@pullcord.laptop.org>
On Fri, 15 Apr 2011, Chris Ball wrote:
> Hi,
>
> On Thu, Apr 14 2011, Chris Ball wrote:
> > Here's a sample disassembly of one function on ARM with gcc-4.6.0, and
> > diff -y. Explicit memset (which calls __memzero) on the left, and {0}
> > initializer (which calls memset) on the right:
>
> (I checked on x86_64 too, and the code's identical -- it's inlined into
> a "rep stos %eax,%es:(%rdi)" either way.)
Glad to know that gcc is not as dumb as it used to be.
Nicolas
prev parent reply other threads:[~2011-04-15 22:37 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-04-14 3:57 [PATCH 1/3] mmc: initialize struct mmc_command at declaration time Chris Ball
2011-04-14 4:07 ` [PATCHv2 " Chris Ball
2011-04-14 23:37 ` [PATCH " Nicolas Pitre
2011-04-15 3:11 ` Chris Ball
2011-04-15 18:06 ` Chris Ball
2011-04-15 22:37 ` Nicolas Pitre [this message]
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