Jingning Han d05f66aa10 SSE2 16x16 inverse ADST/DCT hybrid transform
This commit enables SSE2 implementation of 16x16 inverse ADST/DCT
hybrid transform. The runtime goes from 5742 cycles -> 1821 cycles.
This provides about 1% encoding speed-up at speed 0.

Change-Id: I1678d0988bf30b9efd524877705bbb3645edb17b
2013-07-16 12:51:42 -07:00
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