From: "H. Peter Anvin" <hpa@zytor.com>
To: Andi Kleen <andi@firstfloor.org>
Cc: Arjan van de Ven <arjan@infradead.org>,
linux-kernel@vger.kernel.org, mingo@elte.hu, tglx@tglx.de,
torvalds@linux-foundation.org
Subject: Re: [PATCH] x86: Use __builtin_memset and __builtin_memcpy for memset/memcpy
Date: Fri, 02 Oct 2009 13:04:25 -0700 [thread overview]
Message-ID: <4AC65CC9.4000105@zytor.com> (raw)
In-Reply-To: <87bpkpbo3t.fsf@basil.nowhere.org>
On 10/02/2009 12:19 PM, Andi Kleen wrote:
>
> I tried this some time ago, but it it generates bad code on some
> gcc 3 versions.
>
> You really need to test such kind of changes on a wide variety
> of compilers, not assuming everyone uses the same version as you.
>
The version that went in is for gcc 4 only.
-hpa
--
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel. I don't speak on their behalf.
next prev parent reply other threads:[~2009-10-02 20:08 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-09-28 9:34 [PATCH] x86: Use __builtin_memset and __builtin_memcpy for memset/memcpy Arjan van de Ven
2009-09-28 12:21 ` Arjan van de Ven
2009-09-28 23:47 ` [tip:x86/asm] " tip-bot for Arjan van de Ven
2009-09-29 12:44 ` [PATCH] " Arnd Bergmann
2009-09-29 12:53 ` Arjan van de Ven
2009-09-29 15:32 ` H. Peter Anvin
2009-10-02 19:19 ` Andi Kleen
2009-10-02 20:04 ` H. Peter Anvin [this message]
2009-10-02 20:12 ` Andi Kleen
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