[Bug fortran/43829] Scalarization of reductions

[paul.richard.thomas at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43829

--- Comment #36 from paul.richard.thomas at gmail dot com <paul.richard.thomas at gmail dot com> 2011-10-04 16:04:48 UTC ---
Dear Michael,

I agree - we need the most up to date version to be (re-)submitted.  I
will review it.

Cheers

Paul

On Tue, Oct 4, 2011 at 3:17 PM, matz at gcc dot gnu.org
<gcc-bugzilla@gcc.gnu.org> wrote:
> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43829
>
> Michael Matz <matz at gcc dot gnu.org> changed:
>
>           What    |Removed                     |Added
> ----------------------------------------------------------------------------
>  Attachment #23268|0                           |1
>        is obsolete|                            |
>
> --- Comment #35 from Michael Matz <matz at gcc dot gnu.org> 2011-10-04 13:17:00 UTC ---
> Created attachment 25409
>  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=25409
> Even more up-to-date patch
>
> This patch applies to r179469.  The results on tonto, on a Bulldozer machine:
>
> imf ./tonto.r179469.bdver.avx   3m22.045s
> imf ./tonto.r179469.bdver.nosum 2m59.535s
>
> That's with libimf preloaded.  And then it's actually faster then with ICC
> (doesn't mean much, as on bulldozer we can use FMA4 and XOP).  Nevertheless
> the speedup is now rougly 10%.  We really should work towards including
> it for 4.7.
>
> --
> Configure bugmail: http://gcc.gnu.org/bugzilla/userprefs.cgi?tab=email
> ------- You are receiving this mail because: -------
> You are on the CC list for the bug.
>