<div style="line-height:1.7;color:#000000;font-size:14px;font-family:arial"><div style="color: rgb(0, 0, 0); line-height: 1.7; font-family: arial; font-size: 14px;"><div>Why x64 only? r4 always free in both x86 and x64</div><pre><br>At 2015-05-20 07:33:14,<a href="mailto:dtyx265@gmail.com">dtyx265@gmail.com</a> wrote:
># HG changeset patch
># User David T Yuen <<a href="mailto:dtyx265@gmail.com">dtyx265@gmail.com</a>>
># Date 1432078001 25200
># Node ID 509f7cbf8e09d6ddec4aa58040cfd206879d59e7
># Parent 3e07cba4b2034db2b819b2e11e98ee4b851d52b5
>asm: interp_4tap_vert_pX_4xN sse2
>
>Improved register usage for addressing of output. This improvement helps 64-bit .7% to 2.5% but hurt 32-bit performance so I made it 64-bit only.
>Also added interp_4tap_vert_ps_4x32 in primitives setup.
>
>diff -r 3e07cba4b203 -r 509f7cbf8e09 source/common/x86/asm-primitives.cpp
>--- a/source/common/x86/asm-primitives.cpp Tue May 19 14:27:04 2015 -0700
>+++ b/source/common/x86/asm-primitives.cpp Tue May 19 16:26:41 2015 -0700
>@@ -1482,6 +1482,7 @@
> p.chroma[X265_CSP_I422].pu[CHROMA_422_4x4].filter_vps = x265_interp_4tap_vert_ps_4x4_sse2;
> p.chroma[X265_CSP_I422].pu[CHROMA_422_4x8].filter_vps = x265_interp_4tap_vert_ps_4x8_sse2;
> p.chroma[X265_CSP_I422].pu[CHROMA_422_4x16].filter_vps = x265_interp_4tap_vert_ps_4x16_sse2;
>+ p.chroma[X265_CSP_I422].pu[CHROMA_422_4x32].filter_vps = x265_interp_4tap_vert_ps_4x32_sse2;
> p.chroma[X265_CSP_I444].pu[LUMA_4x4].filter_vps = x265_interp_4tap_vert_ps_4x4_sse2;
> p.chroma[X265_CSP_I444].pu[LUMA_4x8].filter_vps = x265_interp_4tap_vert_ps_4x8_sse2;
> p.chroma[X265_CSP_I444].pu[LUMA_4x16].filter_vps = x265_interp_4tap_vert_ps_4x16_sse2;
>diff -r 3e07cba4b203 -r 509f7cbf8e09 source/common/x86/ipfilter8.asm
>--- a/source/common/x86/ipfilter8.asm Tue May 19 14:27:04 2015 -0700
>+++ b/source/common/x86/ipfilter8.asm Tue May 19 16:26:41 2015 -0700
>@@ -1138,6 +1138,9 @@
> mova m1, [pw_2000]
> %endif
>
>+%if ARCH_X86_64
>+ lea r4, [3 * r3]
>+%endif
> lea r5, [3 * r1]
> punpcklqdq m0, m0
>
>@@ -1243,11 +1246,23 @@
> movd [r2], m2
> psrldq m2, 4
> movd [r2 + r3], m2
>+ psrldq m2, 4
>+%if ARCH_X86_64
>+ movd [r2 + 2 * r3], m2
>+ psrldq m2, 4
>+ movd [r2 + r4], m2
>+%if x < %2/4
>+ lea r2, [r2 + 4 * r3]
>+%endif
>+%else
> lea r2, [r2 + 2 * r3]
>- psrldq m2, 4
> movd [r2], m2
> psrldq m2, 4
> movd [r2 + r3], m2
>+%if x < %2/4
>+ lea r2, [r2 + 2 * r3]
>+%endif
>+%endif
> %elifidn %1,ps
> psrldq m4, 2
> psrldq m5, 2
>@@ -1255,14 +1270,25 @@
> pshufd m5, m5, q3120
> punpcklqdq m4, m5
> psubw m4, m1
>+%if ARCH_X86_64
>+ movh [r2 + 2 * r3], m4
>+ movhps [r2 + r4], m4
>+%if x < %2/4
>+ lea r2, [r2 + 4 * r3]
>+%endif
>+%else
> lea r2, [r2 + 2 * r3]
> movh [r2], m4
> movhps [r2 + r3], m4
>-%endif
>-
> %if x < %2/4
> lea r2, [r2 + 2 * r3]
> %endif
>+%endif
>+%endif
>+
>+; %if x < %2/4
>+; lea r2, [r2 + 4 * r3]
>+; %endif
>
> %assign x x+1
> %endrep
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</pre></div></div>