virtualenv/FFmpeg
1
0
Fork 0
mirror of https://github.com/FFmpeg/FFmpeg.git synced 2024-12-23 12:43:46 +02:00
Code Issues Releases Activity

aarch64: vp9lpf: Use dup+rev16+uzp1 instead of dup+lsr+dup+trn1

Browse Source 
This is one cycle faster in total, and three instructions fewer.

Before:
vp9_loop_filter_mix2_v_44_16_neon: 123.2
After:
vp9_loop_filter_mix2_v_44_16_neon: 122.2

Signed-off-by: Martin Storsjö <martin@martin.st>
This commit is contained in:
Martin Storsjö 2017-02-23 23:33:58 +02:00
parent c582cb8537
commit 3bf9c48320
1 changed files with 9 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

21
libavcodec/aarch64/vp9lpf_neon.S
View File

@ -162,18 +162,15 @@
dup v2\sz, w3 // I
dup v3\sz, w4 // H
.else
dup v0.8b, w2 // E
dup v2.8b, w3 // I
dup v3.8b, w4 // H
lsr w5, w2, #8
lsr w6, w3, #8
lsr w7, w4, #8
dup v1.8b, w5 // E
dup v4.8b, w6 // I
dup v5.8b, w7 // H
trn1 v0.2d, v0.2d, v1.2d
trn1 v2.2d, v2.2d, v4.2d
trn1 v3.2d, v3.2d, v5.2d
dup v0.8h, w2 // E
dup v2.8h, w3 // I
dup v3.8h, w4 // H
rev16 v1.16b, v0.16b // E
rev16 v4.16b, v2.16b // I
rev16 v5.16b, v3.16b // H
uzp1 v0.16b, v0.16b, v1.16b
uzp1 v2.16b, v2.16b, v4.16b
uzp1 v3.16b, v3.16b, v5.16b
.endif
uabd v4\sz, v20\sz, v21\sz // abs(p3 - p2)