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Message from discussion MPIR and gcc-4.3.2
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Bill Hart  
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 More options May 9 2012, 10:22 pm
From: Bill Hart <goodwillh...@googlemail.com>
Date: Wed, 9 May 2012 19:22:04 -0700 (PDT)
Local: Wed, May 9 2012 10:22 pm
Subject: Re: MPIR and gcc-4.3.2
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This thread got a lot of replies on mpir-devel which didn't show up
here for various random reasons.

The gist is that the problem only occurs with debian gcc 4.3.2, and
only with fstrict-aliasing which is enabled by -O2.

There's a discussion there about what best to do about it in Sage and
MPIR. I refer you to mpir-devel for the follow up.

Bill.

On May 9, 6:28 pm, Nils Bruin <nbr...@sfu.ca> wrote:

> Both GMP and MPIR documentation complain about gcc-4.3.2, but I
> haven't seen an explicit code snippet that triggers faulty behaviour.
> Closest I found was this:

> http://trac.mpir.org/mpir_trac/ticket/291

> which indicates that at least something in "rootrem.c" goes wrong. I'd
> assume the testsuites of both GMP and MPIR pick up on the problem, so
> if you're finding everything is fine, it might be worth investigating.


 
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