Scott LaVarnway 992b5e2d95 sse2 intrinsic version of vp8_mbloop_filter_horizontal_edge()
First sse2 version of vp8_mbloop_filter_horizontal_edge().  For now,
intrinsics are being used until the bitstream is finalized.  This function
will be revisited later for further performance improvements.
For the test clip used, a 31+% decoder performance improvement
was seen.  This will vary depending on material.

Change-Id: I03ed3a7182478bdd1f094644ff3e0442625600e7
2012-10-18 14:29:26 -07:00
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