[PATCH, x86, AVX2] FP reassociation enabling for AVX2 targets

Uros Bizjak ubizjak@gmail.com
Mon Feb 18 19:34:00 GMT 2013


On Mon, Feb 18, 2013 at 7:44 PM, Igor Zamyatin <izamyatin@gmail.com> wrote:

> This small change enables FP reassociation for AVX2 processors. This
> gives ~+1.5% in performance geomean for spec2006FP tests.
>
> Bootstrapped/regtested on x86_64-linux, ok for trunk?
>
>
> 2013-02-14  Igor Zamyatin  <igor.zamyatin@intel.com>
>
>         * config/i386/i386.c (initial_ix86_tune_features): Turn on fp
>         reassociation for avx2 targets.

OK (it is a tuning patch).

Thanks,
Uros.



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