| Re: [eigen] can't reproduce gcc 4.3.4 errors |
[ Thread Index |
Date Index
| More lists.tuxfamily.org/eigen Archives
]
- To: eigen@xxxxxxxxxxxxxxxxxxx
- Subject: Re: [eigen] can't reproduce gcc 4.3.4 errors
- From: Gael Guennebaud <gael.guennebaud@xxxxxxxxx>
- Date: Mon, 28 Jun 2010 23:15:07 +0200
- Dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:mime-version:received:in-reply-to :references:from:date:message-id:subject:to:content-type :content-transfer-encoding; bh=Ckq7fy74CblHPKzQ3vY9DE2OqviND+ytTimB5VDte74=; b=Sjp0vPhKu0+f3nx39iFQj+x1xAPCHeHaN/SA1nF5Wkl40GwS3YWwF5/0IJKpGPukzP eFPqkEqA7uN/SoOV/bLIOC0bKi5r154pPfWLWB0aSNH2sotl1jy3OB6vJ6Cefg6ETs13 aSx1DWjKQJQNwlFAKOarOXcppF/iW2kU3GFpQ=
- Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :content-type:content-transfer-encoding; b=LqZaCMEOwoHt7esRWZCZDf8TMacu4ReWtTPUpw3ASx7V4irFbkeg9f99yADm/hO9pI 0QI+1DTdw0ZWm0QdT0KB5BcG4QjTWgWA6FClfFi+25Zf/kediFcmnaqRCCYd21j2x86r krscibh+yL+vBAiMdPxxY98ICV16QeVAmQcp8=
I believe there is a bug in gcc, here is the related bug report:
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42255
but no fix yet.
Some are related to the guess-branch-probability optimization which
seems to produce wrong code.
gael
On Mon, Jun 28, 2010 at 10:23 PM, Hauke Heibel
<hauke.heibel@xxxxxxxxxxxxxx> wrote:
> Hi guys,
>
> I can't reproduce the errors we see here in the dashboard
>
> http://eigen.tuxfamily.org/CDash/viewTest.php?onlyfailed&buildid=2783
>
> My GCC version is:
>
> $ g++-4.exe --version
> g++-4 (GCC) 4.3.4 20090804 (release) 1
> Copyright (C) 2008 Free Software Foundation, Inc.
> This is free software; see the source for copying conditions. There is NO
> warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
>
> and I am running on Cygwin. Any ideas what the reason could be? IIRC,
> Jitse could reproduce those errors.
>
> - Hauke
>
>
>