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${ noResults }
3 Commits (bb4f19f2a27ec2170dee852f7f307fcbc51faba9)
| Author | SHA1 | Message | Date |
|---|---|---|---|
Jonathan Wright
|
6f04cf54f5 |
aarch64: Use ret x<n> instead of br x<n> where possible
Change AArch64 assembly code to use: ret x<n> instead of: br x<n> "ret x<n>" is already used in a lot of places so this patch makes it consistent across the code base. This does not change behavior or performance. In addition, this change reduces the number of landing pads needed in a subsequent patch to support the Armv8.5-A Branch Target Identification (BTI) security feature. Signed-off-by: Jonathan Wright <jonathan.wright@arm.com> Signed-off-by: Martin Storsjö <martin@martin.st> |
3 years ago |
Mikhail Nitenko
|
756d2e087a |
lavc/aarch64: move transpose_4x8H to neon.S
transpose_4x8H was declared in vp9lpf_16bpp_neon, however this macro is not unique to vp9 and could be used elsewhere. Signed-off-by: Mikhail Nitenko <mnitenko@gmail.com> Signed-off-by: Martin Storsjö <martin@martin.st> |
3 years ago |
Martin Storsjö
|
9f10cff610 |
aarch64: Add NEON optimizations for 10 and 12 bit vp9 loop filter
This work is sponsored by, and copyright, Google.
This is similar to the arm version, but due to the larger registers
on aarch64, we can do 8 pixels at a time for all filter sizes.
Examples of runtimes vs the 32 bit version, on a Cortex A53:
ARM AArch64
vp9_loop_filter_h_4_8_10bpp_neon: 213.2 172.6
vp9_loop_filter_h_8_8_10bpp_neon: 281.2 244.2
vp9_loop_filter_h_16_8_10bpp_neon: 657.0 444.5
vp9_loop_filter_h_16_16_10bpp_neon: 1280.4 877.7
vp9_loop_filter_mix2_h_44_16_10bpp_neon: 397.7 358.0
vp9_loop_filter_mix2_h_48_16_10bpp_neon: 465.7 429.0
vp9_loop_filter_mix2_h_84_16_10bpp_neon: 465.7 428.0
vp9_loop_filter_mix2_h_88_16_10bpp_neon: 533.7 499.0
vp9_loop_filter_mix2_v_44_16_10bpp_neon: 271.5 244.0
vp9_loop_filter_mix2_v_48_16_10bpp_neon: 330.0 305.0
vp9_loop_filter_mix2_v_84_16_10bpp_neon: 329.0 306.0
vp9_loop_filter_mix2_v_88_16_10bpp_neon: 386.0 365.0
vp9_loop_filter_v_4_8_10bpp_neon: 150.0 115.2
vp9_loop_filter_v_8_8_10bpp_neon: 209.0 175.5
vp9_loop_filter_v_16_8_10bpp_neon: 492.7 345.2
vp9_loop_filter_v_16_16_10bpp_neon: 951.0 682.7
This is significantly faster than the ARM version in almost
all cases except for the mix2 functions.
Based on START_TIMER/STOP_TIMER wrapping around a few individual
functions, the speedup vs C code is around 2-3x.
Signed-off-by: Martin Storsjö <martin@martin.st>
|
8 years ago |