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From: Jeremy Fitzhardinge <jeremy@goop.org>
To: Arjan van de Ven <arjan@infradead.org>
Cc: Andi Kleen <ak@muc.de>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: -freg-struct-return?
Date: Thu, 22 Feb 2007 00:09:04 -0800	[thread overview]
Message-ID: <45DD4FA0.5030205@goop.org> (raw)
In-Reply-To: <1172131463.3531.226.camel@laptopd505.fenrus.org>

Arjan van de Ven wrote:
> Do we know how many gcc bugs this has? (regparm used to have many)
> other than that.. sounds like a win...
>   

The documentation suggests that its the preferred mode of operation, and
that its the default on platforms where gcc is the primary compiler.  So
the fact that it isn't for Linux suggests either an oversight or that it
is actually broken...

Do we have much assembler which cares about the struct return calling
convention?  If not, it should be a fairly easy test.

    J

  reply	other threads:[~2007-02-22  8:09 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-02-22  1:28 -freg-struct-return? Jeremy Fitzhardinge
2007-02-22  8:04 ` -freg-struct-return? Arjan van de Ven
2007-02-22  8:09   ` Jeremy Fitzhardinge [this message]
2007-02-22  8:15     ` -freg-struct-return? Arjan van de Ven
2007-02-22  8:30       ` -freg-struct-return? Jeremy Fitzhardinge
2007-02-22  8:37       ` -freg-struct-return? Ingo Molnar
2007-02-22  8:38     ` [patch] x86: add -freg-struct-return to CFLAGS Ingo Molnar
2007-02-22 11:23       ` Andi Kleen
2007-02-22 11:27         ` Arjan van de Ven
2007-02-22 18:35       ` Adrian Bunk
2007-02-22 22:31         ` H. Peter Anvin
2007-02-22  9:50     ` -freg-struct-return? Jakub Jelinek
2007-02-22 11:22     ` -freg-struct-return? Andi Kleen
2007-02-22 16:42       ` -freg-struct-return? H. Peter Anvin
2007-02-22 17:39         ` -freg-struct-return? Jeremy Fitzhardinge
2007-02-22 18:36           ` -freg-struct-return? Andi Kleen
2007-02-22 18:48             ` -freg-struct-return? H. Peter Anvin
2007-02-23  0:21               ` -freg-struct-return? Andi Kleen
2007-02-22 18:56             ` -freg-struct-return? Jan Engelhardt
2007-02-22 19:12               ` -freg-struct-return? H. Peter Anvin

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