From: Andrea Arcangeli <andrea@suse.de>
To: Michael Meissner <meissner@spectacle-pond.org>
Cc: "Albert D. Cahalan" <acahalan@cs.uml.edu>,
George Anzinger <george@mvista.com>,
"linux-kernel@vger.redhat.com" <linux-kernel@vger.kernel.org>
Subject: Re: Where is it written?
Date: Sat, 11 Nov 2000 16:32:04 +0100 [thread overview]
Message-ID: <20001111163204.B6367@inspiron.suse.de> (raw)
In-Reply-To: <20001110184031.A2704@munchkin.spectacle-pond.org> <200011110011.eAB0BbF244111@saturn.cs.uml.edu> <20001110192751.A2766@munchkin.spectacle-pond.org>
In-Reply-To: <20001110192751.A2766@munchkin.spectacle-pond.org>; from meissner@spectacle-pond.org on Fri, Nov 10, 2000 at 07:27:51PM -0500
On Fri, Nov 10, 2000 at 07:27:51PM -0500, Michael Meissner wrote:
> Don't get me wrong -- in my 25 years of compiler hacking, I've never seen an
> ABI that I was completely happy with, [..]
Ok, but I've seen only one that I'm completly unhappy with. Can you think at
one case where it's better to push the parameter on the stack instead of
passing them through the callee clobbered ebx/eax/edx? Saving the pushes makes
a relevant performance difference (that's why we have FASTCALL in kernel to use
the sane calling convention even with the <2.95 gcc in fast paths).
Andrea
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next prev parent reply other threads:[~2000-11-11 15:38 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2000-11-10 16:37 Where is it written? George Anzinger
2000-11-10 23:40 ` Michael Meissner
2000-11-11 0:11 ` Albert D. Cahalan
2000-11-11 0:27 ` Michael Meissner
2000-11-11 1:10 ` H. Peter Anvin
2000-11-11 1:28 ` Keith Owens
2000-11-11 1:33 ` H. Peter Anvin
2000-11-14 1:33 ` Richard Henderson
2000-11-11 5:17 ` Michael Meissner
2000-11-11 14:51 ` Andrea Arcangeli
2000-11-11 15:32 ` Andrea Arcangeli [this message]
2000-11-11 23:17 ` Peter Samuelson
2000-11-11 23:30 ` H. Peter Anvin
2000-11-12 4:54 ` Peter Samuelson
2000-11-12 5:21 ` H. Peter Anvin
2000-11-12 5:36 ` Peter Samuelson
2000-11-12 5:55 ` Keith Owens
2000-11-12 9:35 ` Andi Kleen
2000-11-12 12:23 ` Andrea Arcangeli
2000-11-13 5:28 ` H. Peter Anvin
2000-11-12 15:35 ` Olaf Titz
2000-11-11 1:06 ` H. Peter Anvin
2000-11-10 23:49 ` H. Peter Anvin
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