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Re: Ongoing bootstrap failures on ppc64 since 2007-07-02
On Fri, Jul 06, 2007 at 12:07:43PM -0400, Diego Novillo wrote:
> On 7/6/07 11:48 AM, FX Coudert wrote:
>
> > Depends what is your current version,
>
> $ rpm -q gmp
> gmp-4.1.4-12
>
>
> > I guess. Can you get us a backtrace?
>
> Well, it seems to be a mis-compilation of f951. The stage3 f951 binary
> dies trying to fold an INDIRECT_REF with a NULL type (suspicious). The
> stage1 f951 binary works like a charm.
>
> On IRC, David Edelsohn mentioned that Steve Kargl was looking to debug
> this problem but didn't have access to ppc hardware. Steve, I could
> give you an account on my machine if you wanted.
>
> In the meantime I will try upgrading gmp/mpfr but I'm not quite sure
> that this is related.
>
Dorit has isolated the problem to the ISO C Binding import. See
for example
http://gcc.gnu.org/ml/gcc/2007-07/msg00133.html
AFAIK, ppc64 is the only target that is failing. I'll send you
my public key later today (I have to run to a meeting). If this
is a middle/back-end issue, I may be too incompetent to fix it.
--
Steve