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Re: Has anyone seen mainline Fortran regression with SPEC CPU 2000/2006?
- From: Steve Kargl <sgk at troutmask dot apl dot washington dot edu>
- To: "H. J. Lu" <hjl at lucon dot org>
- Cc: gcc at gcc dot gnu dot org, fortran at gcc dot gnu dot org
- Date: Mon, 13 Nov 2006 22:56:55 -0800
- Subject: Re: Has anyone seen mainline Fortran regression with SPEC CPU 2000/2006?
- References: <20061114063716.GA11393@lucon.org>
On Mon, Nov 13, 2006 at 10:37:16PM -0800, H. J. Lu wrote:
> Gcc 4.3 revision 118764 failed galgel in SPEC CPU 2000 with
> -O2 -ffast-math on Linux/x86-64. I got
>
> galgel_base.o2[30363]: segfault at 000000000000000b rip 000000000000000b rsp 0000007fbffff008 error 14
>
> Gcc 4.3 revision 118723 passes SPEC CPU 2006 with -O2 -ffast-math on
> Linux/x86-64. But it fails wrf in SPEC CPU 2006 with -O2 on Linux/x86.
> The odd thing is the test input works fine and the ref input causes
> segfaults at the very end of the several hour run.
>
> Has anyone else seen it?
>
I have not seen this failure, but that may be expected
since SPEC CPU 2000 isn't freely available.
What happens if you remove -ffast-math? Does galgel
use any complex types? -ffast-math and complex types
are incongruent.
--
Steve