[x265] [PATCH] blockcopy_pp_8x6: optimize register uses

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At 2015-02-03 19:45:04,praveen at multicorewareinc.com wrote:
># HG changeset patch
># User Praveen Tiwari
># Date 1422963895 -19800
># Node ID bfc9a2d99e20568cb43d9fba0133735009793b00
># Parent  d212ce9fa3705b9e7d4d23f14412bd28fe3bbfde
>blockcopy_pp_8x6: optimize register uses
>
>diff -r d212ce9fa370 -r bfc9a2d99e20 source/common/x86/blockcopy8.asm
>--- a/source/common/x86/blockcopy8.asm	Tue Feb 03 14:30:42 2015 +0530
>+++ b/source/common/x86/blockcopy8.asm	Tue Feb 03 17:14:55 2015 +0530
>@@ -327,24 +327,24 @@
> ; void blockcopy_pp_8x6(pixel* dst, intptr_t dstStride, const pixel* src, intptr_t srcStride)
> ;-----------------------------------------------------------------------------
> INIT_XMM sse2
>-cglobal blockcopy_pp_8x6, 4, 7, 6
>+cglobal blockcopy_pp_8x6, 4, 4, 6
>     movh     m0,     [r2]
>     movh     m1,     [r2 + r3]
>-    movh     m2,     [r2 + 2 * r3]
>-    lea      r5,     [r2 + 2 * r3]
>-    movh     m3,     [r5 + r3]
>-    movh     m4,     [r5 + 2 * r3]
>-    lea      r5,     [r5 + 2 * r3]
>-    movh     m5,     [r5 + r3]
>-
>-    movh     [r0],            m0
>-    movh     [r0 + r1],       m1
>-    movh     [r0 + 2 * r1],   m2
>-    lea      r6,              [r0 + 2 * r1]
>-    movh     [r6 + r1],       m3
>-    movh     [r6 + 2 * r1],   m4
>-    lea      r6,              [r6 + 2 * r1]
>-    movh     [r6 + r1],       m5
>+    lea      r2,     [r2 + 2 * r3]
>+    movh     m2,     [r2]
>+    movh     m3,     [r2 + r3]
>+    lea      r2,     [r2 + 2 * r3]
>+    movh     m4,     [r2]
>+    movh     m5,     [r2 + r3]
>+
>+    movh     [r0],          m0
>+    movh     [r0 + r1],     m1
>+    lea      r0,            [r0 + 2 * r1]
>+    movh     [r0],          m2
>+    movh     [r0 + r1],     m3
>+    lea      r0,            [r0 + 2 * r1]
>+    movh     [r0],          m4
>+    movh     [r0 + r1],     m5
>     RET
> 
> ;-----------------------------------------------------------------------------
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