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avcodec/x86/vvc/mc: Avoid unused work

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The high quadword of these registers is zero for width 2.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
Andreas Rheinhardt
2026-02-17 19:23:27 +01:00
parent 9317fb2b2e
commit eabf52e787
1 changed files with 13 additions and 7 deletions
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20
libavcodec/x86/vvc/mc.asm
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@@ -64,12 +64,12 @@ SECTION .text
%rep %3
%define off %%i
AVG_LOAD_W16 0, off
%2 %1
%2 %1, 16
AVG_SAVE_W16 %1, 0, off
AVG_LOAD_W16 1, off
%2 %1
%2 %1, 16
AVG_SAVE_W16 %1, 1, off
%assign %%i %%i+1
@@ -85,7 +85,7 @@ INIT_XMM cpuname
pinsrd xm0, [src0q + AVG_SRC_STRIDE], 1
movd xm1, [src1q]
pinsrd xm1, [src1q + AVG_SRC_STRIDE], 1
%2 %1
%2 %1, 2
AVG_SAVE_W2 %1
AVG_LOOP_END .w2
@@ -94,7 +94,7 @@ INIT_XMM cpuname
pinsrq xm0, [src0q + AVG_SRC_STRIDE], 1
movq xm1, [src1q]
pinsrq xm1, [src1q + AVG_SRC_STRIDE], 1
%2 %1
%2 %1, 4
AVG_SAVE_W4 %1
AVG_LOOP_END .w4
@@ -105,7 +105,7 @@ INIT_YMM cpuname
movu xm1, [src1q]
vinserti128 m0, m0, [src0q + AVG_SRC_STRIDE], 1
vinserti128 m1, m1, [src1q + AVG_SRC_STRIDE], 1
%2 %1
%2 %1, 8
AVG_SAVE_W8 %1
AVG_LOOP_END .w8
@@ -134,7 +134,7 @@ INIT_YMM cpuname
RET
%endmacro
%macro AVG 1
%macro AVG 2 ; bpc, width
paddsw m0, m1
pmulhrsw m0, m2
%if %1 != 8
@@ -142,18 +142,24 @@ INIT_YMM cpuname
%endif
%endmacro
%macro W_AVG 1
%macro W_AVG 2 ; bpc, width
%if %2 > 2
punpckhwd m5, m0, m1
pmaddwd m5, m3
paddd m5, m4
psrad m5, xm2
%endif
punpcklwd m0, m0, m1
pmaddwd m0, m3
paddd m0, m4
psrad m0, xm2
%if %2 == 2
packssdw m0, m0
%else
packssdw m0, m5
%endif
%if %1 != 8
CLIPW m0, m6, m7
%endif