[x265] [PATCH] blockcopy_pp_12x32: SSE2 asm code optimization

[chen]

this code is right
but could you try use general register move (rN, rNd) in x64 mode?

At 2015-02-05 19:59:24,praveen at multicorewareinc.com wrote:
># HG changeset patch
># User Praveen Tiwari
># Date 1423137543 -19800
># Node ID b10384b8c8a9a60fe37f4e5f3506673dcf00c004
># Parent  499eddf5c1e4dfcb8447d65cb0b48d633b3660a5
>blockcopy_pp_12x32: SSE2 asm code optimization
>
>diff -r 499eddf5c1e4 -r b10384b8c8a9 source/common/x86/blockcopy8.asm
>--- a/source/common/x86/blockcopy8.asm	Thu Feb 05 16:48:36 2015 +0530
>+++ b/source/common/x86/blockcopy8.asm	Thu Feb 05 17:29:03 2015 +0530
>@@ -584,7 +584,55 @@
> 
> BLOCKCOPY_PP_W12_H4 12, 16
> 
>-BLOCKCOPY_PP_W12_H4 12, 32
>+;-----------------------------------------------------------------------------
>+; void blockcopy_pp_12x32(pixel* dst, intptr_t dstStride, const pixel* src, intptr_t srcStride)
>+;-----------------------------------------------------------------------------
>+INIT_XMM sse2
>+cglobal blockcopy_pp_12x32, 4, 7, 8
>+
>+   lea     r5,      [3 * r1]
>+   lea     r6,      [3 * r3]
>+
>+    movh    m0,     [r2]
>+    movd    m1,     [r2 + 8]
>+    movh    m2,     [r2 + r3]
>+    movd    m3,     [r2 + r3 + 8]
>+    movh    m4,     [r2 + 2 * r3]
>+    movd    m5,     [r2 + 2 * r3 + 8]
>+    movh    m6,     [r2 + r6]
>+    movd    m7,     [r2 + r6 + 8]
>+
>+    movh    [r0],              m0
>+    movd    [r0 + 8],          m1
>+    movh    [r0 + r1],         m2
>+    movd    [r0 + r1 + 8],     m3
>+    movh    [r0 + 2 * r1],     m4
>+    movd    [r0 + 2 * r1 + 8], m5
>+    movh    [r0 + r5],         m6
>+    movd    [r0 + r5 + 8],     m7
>+
>+    %rep 7
>+    lea     r2,     [r2 + 4 * r3]
>+    movh    m0,     [r2]
>+    movd    m1,     [r2 + 8]
>+    movh    m2,     [r2 + r3]
>+    movd    m3,     [r2 + r3 + 8]
>+    movh    m4,     [r2 + 2 * r3]
>+    movd    m5,     [r2 + 2 * r3 + 8]
>+    movh    m6,     [r2 + r6]
>+    movd    m7,     [r2 + r6 + 8]
>+
>+    lea     r0,     [r0 + 4 * r1]
>+    movh    [r0],              m0
>+    movd    [r0 + 8],          m1
>+    movh    [r0 + r1],         m2
>+    movd    [r0 + r1 + 8],     m3
>+    movh    [r0 + 2 * r1],     m4
>+    movd    [r0 + 2 * r1 + 8], m5
>+    movh    [r0 + r5],         m6
>+    movd    [r0 + r5 + 8],     m7
>+%endrep
>+    RET
> 
> ;-----------------------------------------------------------------------------
> ; void blockcopy_pp_16x4(pixel* dst, intptr_t dstStride, const pixel* src, intptr_t srcStride)
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