On 25 November 2010 22:34, Michael Hope <michael.h...@linaro.org> wrote:
> On Fri, Nov 26, 2010 at 2:35 AM, Ira Rosen <ira.ro...@linaro.org> wrote:
>>      FFMPEG http://www.ffmpeg.org/  (got this from Rony Nandy from
>> User Platforms). It contains hand-vectorized code for NEON.
>> Investigating.
>
> I'm builidng and running a few variants of ffmpeg as part of the
> continuous build. See:
>  http://builds.linaro.org/toolchain/gcc-linaro-4.5+bzr99435/logs/armv7l-maverick-cbuild17-pavo3/
> and check out ffmpegbench*run.txt.
>
> See the first line of ffmpegbench*configure.txt for the configure
> options used to build it.
>
> The test files are here:
>  http://ex.seabright.co.nz/misc/cbuild/live/cbuild/files/ffmpeg/
>
> And the scripts that tie it together:
>  http://bazaar.launchpad.net/~cbuild/%2Bjunk/cbuild/annotate/head%3A/lib/ffmpegbench-variants.mk
>  http://bazaar.launchpad.net/~cbuild/%2Bjunk/cbuild/annotate/head%3A/lib/ffmpegbench.mk
>
> Note that there's the 'plain' -O2, 'asm' with assembler backend,
> 'size' -Os, and 'neon' -mfpu=neon versions.  Note also that ffmpeg
> turns on '-fno-tree-vectorise' by default.

Thanks! I wasn't able to create vectorizer's dumps because of that
default -fno-tree-vectorize.

Thanks,
Ira

>
> -- Michael
>

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