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Date: Mon, 31 Jan 2011 19:09:43 +0100
From: Christophe Lyon <christophe.lyon@st.com>
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Subject: Re: [Qemu-devel] [PATCH 1/8] target-arm: Fixes for several shift
	instructions: VRSHL, VRSHR, VRSHRN, VSHLL, VRSRA.
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To: Aurelien Jarno <aurelien@aurel32.net>
Cc: "qemu-devel@nongnu.org" <qemu-devel@nongnu.org>

On 31.01.2011 17:46, Peter Maydell wrote:
> On 31 January 2011 15:59, Aurelien Jarno <aurelien@aurel32.net> wrote:
>> It seems the problems come from here, if I add --enable-debug, I am not
>> able to reproduce the problem anymore. I don't understand why though.
> 
> --enable-debug turns off optimisation (ie does not pass -O2); a number
> of gcc's warnings, including this one, are only done in the dataflow analysis
> pass and so will not be generated unless you have optimisation enabled.
> 

Indeed.

I have just sent another patchset which addresses this problem.

Christophe.