[x265] [PATCH] assembly code for intra_pred_ang8_3

[chen]

At 2014-01-17 14:00:55,"Jason Garrett-Glaser" <jason at x264.com> wrote:
>+    movu        m0,        [r2 + 1]                   ; [16 15 14 13
>12 11 10 9 8 7 6 5 4 3 2 1]
>+    palignr     m1,        m0, 1                      ; [x 16 15 14
>13 12 11 10 9 8 7 6 5 4 3 2]
>
>Shouldn't this be pslrdq or similar?  The dependency on uninitialized
>registers is a bit weird too...

This algorithm is suggest by me, the  psrldq can't move register, we
have to wasting some instruction to do it.
Of course, we have a restrict use uninitialize value on other instruction.
 
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.videolan.org/pipermail/x265-devel/attachments/20140117/985b67a8/attachment.html>