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Replace uxtl with umull in dmvr_hv_8

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Before and after on A78:
dmvr_hv_8_12x20_neon:                                  205.3 ( 5.21x)
dmvr_hv_8_20x12_neon:                                  171.8 ( 3.15x)
dmvr_hv_8_20x20_neon:                                  282.7 ( 3.11x)

dmvr_hv_8_12x20_neon:                                  172.7 ( 5.58x)
dmvr_hv_8_20x12_neon:                                  133.3 ( 3.36x)
dmvr_hv_8_20x20_neon:                                  214.6 ( 3.40x)
This commit is contained in:
Krzysztof Pyrkosz
2025-09-04 22:56:43 +02:00
committed by Martin Storsjö
parent 85b5d4adf2
commit fb4407797e
1 changed files with 9 additions and 20 deletions
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29
libavcodec/aarch64/vvc/inter.S
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@@ -393,13 +393,10 @@ function ff_vvc_dmvr_hv_8_neon, export=1
movrel x9, X(ff_vvc_inter_luma_dmvr_filters)
add x12, x9, mx, lsl #1
ldrb w10, [x12]
ldrb w11, [x12, #1]
mov tmp0, sp
add tmp1, tmp0, #(VVC_MAX_PB_SIZE * 2)
// We know the value are positive
dup v0.8h, w10 // filter_x[0]
dup v1.8h, w11 // filter_x[1]
ld2r {v0.16b, v1.16b}, [x12]
add x12, x9, my, lsl #1
ldrb w10, [x12]
@@ -424,14 +421,10 @@ function ff_vvc_dmvr_hv_8_neon, export=1
// width > 16
ldur q5, [src, #1]
ldr q4, [src], #16
uxtl v7.8h, v5.8b
uxtl2 v17.8h, v5.16b
uxtl v6.8h, v4.8b
uxtl2 v16.8h, v4.16b
mul v6.8h, v6.8h, v0.8h
mul v16.8h, v16.8h, v0.8h
mla v6.8h, v7.8h, v1.8h
mla v16.8h, v17.8h, v1.8h
umull v6.8h, v4.8b, v0.8b
umull2 v16.8h, v4.16b, v0.16b
umlal v6.8h, v5.8b, v1.8b
umlal2 v16.8h, v5.16b, v1.16b
urshr v6.8h, v6.8h, #(8 - 6)
urshr v7.8h, v16.8h, #(8 - 6)
stp q6, q7, [x13], #32
@@ -451,10 +444,8 @@ function ff_vvc_dmvr_hv_8_neon, export=1
// width > 8
ldur d5, [src, #1]
ldr d4, [src], #8
uxtl v7.8h, v5.8b
uxtl v6.8h, v4.8b
mul v6.8h, v6.8h, v0.8h
mla v6.8h, v7.8h, v1.8h
umull v6.8h, v4.8b, v0.8b
umlal v6.8h, v5.8b, v1.8b
urshr v6.8h, v6.8h, #(8 - 6)
str q6, [x13], #16
@@ -468,10 +459,8 @@ function ff_vvc_dmvr_hv_8_neon, export=1
3:
ldur s5, [src, #1]
ldr s4, [src], #4
uxtl v7.8h, v5.8b
uxtl v6.8h, v4.8b
mul v6.4h, v6.4h, v0.4h
mla v6.4h, v7.4h, v1.4h
umull v6.8h, v4.8b, v0.8b
umlal v6.8h, v5.8b, v1.8b
urshr v6.4h, v6.4h, #(8 - 6)
str d6, [x13], #8