[graphite] Fix for pr38492 and pr38498

[Sebastian Pop]

On Tue, Jan 6, 2009 at 9:03 PM, Jack Howarth <howarth@bromo.med.uc.edu> wrote:
> Jan,
>   FYI, this patch also eliminates the remaining wrong result failures in the
> capacita and protein polyhedron 2005 benchmarks. With this patch applied to gcc
> trunk on i686-apple-darwin9, I am now able to build the polyhedron benchmarks with
> "-ffast-math -funroll-loops -msse3 -O3 -fgraphite-identity" and the entire benchmark
> builds and passes. Nice.

Thanks Jack for reporting these results: it's good to hear this.
Indeed Jan did a good job here.  I will also try a bootstrap with
BOOT_CFLAGS="-O2 -fgraphite-identity" to see if it passes now.

Thanks again,
Sebastian