On Mon, 25 Jul 2022, Hubert Mazur wrote:
Provide optimized implementation of pix_abs16_y2 function for arm64.
Performance comparison tests are shown below.
pix_abs_0_2_c: 308.5
pix_abs_0_2_neon: 39.2
Benchmarks and tests run with checkasm tool on AWS Graviton 3.
Signed-off-by: Hubert Mazur <h...@semihalf.com>
---
libavcodec/aarch64/me_cmp_init_aarch64.c | 3 +
libavcodec/aarch64/me_cmp_neon.S | 73 ++++++++++++++++++++++++
2 files changed, 76 insertions(+)
Please do the same optimizations as done for pix_abs_xy2 in
b46de9aba436dea0cff76f3ed0f7c98448367fd0,
68a03f64240dcbe408c3fd43d1071a105508a588 and
4136405c86162063e45d40d55c9985f348d4ea0a for this function too
("aarch64: me_cmp: Interleave some of the loads in ff_pix_abs16_xy2_neon",
"aarch64: me_cmp: Switch from uabd to uabal in ff_pix_abs16_xy2_neon" and
"aarch64: me_cmp: Don't do uaddlv once per iteration").
// Martin
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