Bug#640656: g++-4.6: [regression] ICE on i386 when building iceweasel 8.0~a2++20110905042011-1

[Mike Hommey <mh@glandium.org>]

retitle 640656 g++-4.6: [regression] ICE on i386 when building iceweasel
severity 640656 serious
thanks

On Sat, Sep 10, 2011 at 12:06:50PM +0200, Mike Hommey wrote:
> retitle 640656 g++-4.6: [regression] ICE on i386 when building iceweasel 7.0~b5-1 from experimental
> thanks
> 
> On Tue, Sep 06, 2011 at 10:31:49AM +0200, Mike Hommey wrote:
> > Package: g++-4.6
> > Version: 4.6.1-9
> > Severity: important
> > 
> > Tested with 4.6.1-8, and it builds fine.
> > 
> > With the attached file, the following command line is enough to trigger the ICE:
> > g++ -o WyciwygChannelChild.o -c WyciwygChannelChild.i -std=gnu++0x -O2 -g
> > 
> > It also crashes with the original file without -std=gnu++0x but the attached
> > preprocessed output (obviously) doesn't build without -std=gnu++0x.
> > 
> > It doesn't ICE without -g, and it doesn't ICE without -O2.
> 
> And it also ICEs on 7.0~b5-1:
> 
>  * Source package: iceweasel
>  * Version: 7.0~b5-1
>  * Architecture: i386
>  * State: failed
>  * Suite: experimental
>  * Builder: biber.debian.org
>  * Build log: https://buildd.debian.org/fetch.cgi?pkg=iceweasel&arch=i386&ver=7.0%7Eb5-1&stamp=1315648328&file=log

It turns out it also ICEs with 6.0.2-1 from unstable, except it didn't
on buildds because they were using 4.6.1-8 when that version was
uploaded.

Mike