[x265] [PATCH] blockfill_s_32x32 sse2 asm code optimization

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At 2015-02-02 19:57:47,praveen at multicorewareinc.com wrote:
># HG changeset patch
># User Praveen Tiwari
># Date 1422878196 -19800
># Branch stable
># Node ID c0d8c77ef0da266a08d1eba2d80d05d0ad1d28fb
># Parent  8d03acd70332ccf642fc7222bf6f9e7f005983ba
>blockfill_s_32x32 sse2 asm code optimization
>
>optimized LEA instruction
>
>diff -r 8d03acd70332 -r c0d8c77ef0da source/common/x86/blockcopy8.asm
>--- a/source/common/x86/blockcopy8.asm	Mon Feb 02 17:13:34 2015 +0530
>+++ b/source/common/x86/blockcopy8.asm	Mon Feb 02 17:26:36 2015 +0530
>@@ -1855,13 +1855,14 @@
> ;-----------------------------------------------------------------------------
> ; void blockfill_s_%1x%2(int16_t* dst, intptr_t dstride, int16_t val)
> ;-----------------------------------------------------------------------------
>-%macro BLOCKFILL_S_W32_H4 2
>+%macro BLOCKFILL_S_W32_H8 2
> INIT_XMM sse2
> cglobal blockfill_s_%1x%2, 3, 5, 1, dst, dstStride, val
> 
>-mov        r3d,           %2/4
>+mov        r3d,           %2/8
> 
> add        r1,            r1
>+lea        r4,            [3 * r1]
> 
> movd       m0,            r2d
> pshuflw    m0,            m0,       0
>@@ -1883,12 +1884,31 @@
>      movu       [r0 + 2 * r1 + 32], m0
>      movu       [r0 + 2 * r1 + 48], m0
> 
>-     lea        r4,                 [r0 + 2 * r1]
>-
>-     movu       [r4 + r1],          m0
>-     movu       [r4 + r1 + 16],     m0
>-     movu       [r4 + r1 + 32],     m0
>-     movu       [r4 + r1 + 48],     m0
>+     movu       [r0 + r4],          m0
>+     movu       [r0 + r4 + 16],     m0
>+     movu       [r0 + r4 + 32],     m0
>+     movu       [r0 + r4 + 48],     m0
>+
>+     lea        r0,                 [r0 + 4 * r1]
>+     movu       [r0],               m0
>+     movu       [r0 + 16],          m0
>+     movu       [r0 + 32],          m0
>+     movu       [r0 + 48],          m0
>+
>+     movu       [r0 + r1],          m0
>+     movu       [r0 + r1 + 16],     m0
>+     movu       [r0 + r1 + 32],     m0
>+     movu       [r0 + r1 + 48],     m0
>+
>+     movu       [r0 + 2 * r1],      m0
>+     movu       [r0 + 2 * r1 + 16], m0
>+     movu       [r0 + 2 * r1 + 32], m0
>+     movu       [r0 + 2 * r1 + 48], m0
>+
>+     movu       [r0 + r4],          m0
>+     movu       [r0 + r4 + 16],     m0
>+     movu       [r0 + r4 + 32],     m0
>+     movu       [r0 + r4 + 48],     m0
> 
>      lea        r0,                 [r0 + 4 * r1]
> 
>@@ -1898,7 +1918,7 @@
> RET
> %endmacro
> 
>-BLOCKFILL_S_W32_H4 32, 32
>+BLOCKFILL_S_W32_H8 32, 32
> 
> INIT_YMM avx2
> cglobal blockfill_s_32x32, 3, 4, 1
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