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Loren Merritt authored
on core2 this makes x264_pixel_sad an average of 2x faster. other intel cpus gain various amounts. amd are unaffected. overall speedup: 1-10%, depending on how much time is spent in fullpel motion estimation. git-svn-id: svn://svn.videolan.org/x264/trunk@696 df754926-b1dd-0310-bc7b-ec298dee348c
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