<div style="line-height:1.7;color:#000000;font-size:14px;font-family:arial"><pre><br>At 2015-10-12 11:58:46,ramya@multicorewareinc.com wrote:
># HG changeset patch
># User Ramya Sriraman <ramya@multicorewareinc.com>
># Date 1443592336 -19800
># Wed Sep 30 11:22:16 2015 +0530
># Node ID f0d43eb655f0048fe5dd491ee4ad1c0d304b76f8
># Parent b6156a08b1def3584647f26096866c1a0c11e54a
>asm: Add sse_ss for [16x16],[32x32] & [64x64] for 8bpp avx2
>
>diff -r b6156a08b1de -r f0d43eb655f0 source/common/x86/asm-primitives.cpp
>--- a/source/common/x86/asm-primitives.cpp Fri Oct 09 20:45:59 2015 +0530
>+++ b/source/common/x86/asm-primitives.cpp Wed Sep 30 11:22:16 2015 +0530
>@@ -2667,6 +2667,10 @@
> #if X86_64
> if (cpuMask & X265_CPU_AVX2)
> {
>+ p.cu[BLOCK_16x16].sse_ss = (pixel_sse_ss_t)PFX(pixel_ssd_ss_16x16_avx2);
>+ p.cu[BLOCK_32x32].sse_ss = (pixel_sse_ss_t)PFX(pixel_ssd_ss_32x32_avx2);
>+ p.cu[BLOCK_64x64].sse_ss = (pixel_sse_ss_t)PFX(pixel_ssd_ss_64x64_avx2);
>+
> p.cu[BLOCK_16x16].var = PFX(pixel_var_16x16_avx2);
> p.cu[BLOCK_32x32].var = PFX(pixel_var_32x32_avx2);
> p.cu[BLOCK_64x64].var = PFX(pixel_var_64x64_avx2);
>diff -r b6156a08b1de -r f0d43eb655f0 source/common/x86/ssd-a.asm
>--- a/source/common/x86/ssd-a.asm Fri Oct 09 20:45:59 2015 +0530
>+++ b/source/common/x86/ssd-a.asm Wed Sep 30 11:22:16 2015 +0530
>@@ -1016,8 +1016,171 @@
> SSD_SS_32xN
> SSD_SS_48
> SSD_SS_64xN
>+
>+INIT_YMM avx2
>+cglobal pixel_ssd_ss_16x16, 4,4,3
>+ add r1d, r1d
>+ add r3d, r3d
>+ pxor m2, m2
>+
>+ movu m0, [r0]
>+ movu m1, [r0 + r1]
>+ psubw m0, [r2]
>+ psubw m1, [r2 + r3]
>+ lea r0, [r0 + 2 * r1]
>+ lea r2, [r2 + 2 * r3]<br>we have more register to buffer r1*3, it will reduce number of LEA<br>
>+ pmaddwd m0, m0
>+ pmaddwd m1, m1
>+ paddd m2, m1
>+ paddd m2, m0<br>use m2 and m3 for partial sum, it may broken long dependency link
</pre></div>