[x265] [PATCH] blockcopy_pp_4x8 sse2 asm code optimization

[chen]

right

At 2015-02-03 13:56:36,praveen at multicorewareinc.com wrote:
># HG changeset patch
># User Praveen Tiwari
># Date 1422942935 -19800
># Node ID b0be54fb45cf1cbd3bf5a0543da34fb1a854b25f
># Parent  4583eda4cf55e9a7f5c11d1ea660367f3822af53
>blockcopy_pp_4x8 sse2 asm code optimization
>
>improved, 130.02c -> 117.50
>
>diff -r 4583eda4cf55 -r b0be54fb45cf source/common/x86/blockcopy8.asm
>--- a/source/common/x86/blockcopy8.asm Mon Feb 02 17:03:40 2015 +0530
>+++ b/source/common/x86/blockcopy8.asm Tue Feb 03 11:25:35 2015 +0530
>@@ -145,6 +145,38 @@
>     RET
> 
> ;-----------------------------------------------------------------------------
>+; void blockcopy_pp_4x8(pixel* dst, intptr_t dstStride, const pixel* src, intptr_t srcStride)
>+;-----------------------------------------------------------------------------
>+INIT_XMM sse2
>+cglobal blockcopy_pp_4x8, 4, 6, 4
>+
>+    lea     r4,    [3 * r1]
>+    lea     r5,    [3 * r3]
>+
>+    movd     m0,     [r2]
>+    movd     m1,     [r2 + r3]
>+    movd     m2,     [r2 + 2 * r3]
>+    movd     m3,     [r2 + r5]
>+
>+    movd     [r0],          m0
>+    movd     [r0 + r1],     m1
>+    movd     [r0 + 2 * r1], m2
>+    movd     [r0 + r4],     m3
>+
>+    lea      r2,     [r2 + 4 * r3]
>+    movd     m0,     [r2]
>+    movd     m1,     [r2 + r3]
>+    movd     m2,     [r2 + 2 * r3]
>+    movd     m3,     [r2 + r5]
>+
>+    lea      r0,            [r0 + 4 * r1]
>+    movd     [r0],          m0
>+    movd     [r0 + r1],     m1
>+    movd     [r0 + 2 * r1], m2
>+    movd     [r0 + r4],     m3
>+    RET
>+
>+;-----------------------------------------------------------------------------
> ; void blockcopy_pp_%1x%2(pixel* dst, intptr_t dstStride, const pixel* src, intptr_t srcStride)
> ;-----------------------------------------------------------------------------
> %macro BLOCKCOPY_PP_W4_H8 2
>@@ -186,7 +218,6 @@
>     RET
> %endmacro
> 
>-BLOCKCOPY_PP_W4_H8 4, 8
> BLOCKCOPY_PP_W4_H8 4, 16
> 
> BLOCKCOPY_PP_W4_H8 4, 32
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