optimization/9711: glibc 2.3.1 miscompiled (mcpu=i686, mcpu=athlon, -fomit-frame-pointer)

Ronald Wahl Ronald.Wahl@informatik.tu-chemnitz.de
Sat Feb 15 21:36:00 GMT 2003


On 14 Feb 2003 22:15:53 -0000, bangerth  wrote:

> Synopsis: glibc 2.3.1 miscompiled (mcpu=i686, mcpu=athlon, -fomit-frame-pointer)
> State-Changed-From-To: open->feedback
> State-Changed-By: bangerth
> State-Changed-When: Fri Feb 14 22:15:53 2003
> State-Changed-Why:
>     We need more information to tackle this problem. Please
>     review
>       http://gcc.gnu.org/bugs.html
>     for what we need and provide this information.

>     Thanks
>       Wolfgang

>
> http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=9711

Maybe we can forget all about my bug report if one could tell me if
it should matter if I specify march/mcpu options in cc1_options
instead of cc1_cpu in the spec file. If this really matters then it
should be documented somewhere I think. I had these options appended
to cc1_options. If I move'em to cc1_cpu the problems go away.

The -fomit-frame-pointer issue was already reported and there is an
patch floating around. (http://gcc.gnu.org/ml/gcc/2002-07/msg00367.html)
which I haven't tried yet.

regards,
ron



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