[x265] [PATCH 1 of 7] asm:intra_pred_ang4_3_sse2 improved ~4.5% 684.95 -> 654.99 with nits and tweaks

[chen]

At 2015-04-02 02:52:16,dtyx265 at gmail.com wrote:
># HG changeset patch
># User David T Yuen <dtyx265 at gmail.com>
># Date 1427891624 25200
># Node ID 529c6056ccfbce57cd845abec59a2af02812cd57
># Parent  89bc6238d4a2e3f117f0127e406c6dfbf093868b
>asm:intra_pred_ang4_3_sse2 improved ~4.5% 684.95 -> 654.99 with nits and tweaks
>
>Changed r3 and r4 to r3d and r4d
>Removed unnecessary pxor's
>changed pshufd to psrldq
>
>diff -r 89bc6238d4a2 -r 529c6056ccfb source/common/x86/intrapred8.asm
>--- a/source/common/x86/intrapred8.asm	Tue Mar 31 10:44:43 2015 -0700
>+++ b/source/common/x86/intrapred8.asm	Wed Apr 01 05:33:44 2015 -0700
>@@ -1339,10 +1339,10 @@
> 
> INIT_XMM sse2
> cglobal intra_pred_ang4_3, 3,5,8
>-    mov         r4, 1
>+    mov         r4d, 1
>     cmp         r3m, byte 33
>-    mov         r3, 9
>-    cmove       r3, r4
>+    mov         r3d, 9
>+    cmove       r3d, r4d
> 
>     movh        m0, [r2 + r3]   ; [8 7 6 5 4 3 2 1]
>     mova        m1, m0
>@@ -1368,7 +1368,6 @@
> ALIGN 16
> .do_filter4x4:
>     pxor        m1, m1
>-    pxor        m3, m3
high part in m3 isn't zero
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