George Steed 11c57f4f12 [AArch64] Add Neon implementation of ScaleRowDown2_16_NEON ... The auto-vectorized implementation unrolls to process 32 elements per iteration, so unroll the new Neon implementation to match and avoid a performance regression on little cores. Performance relative to the auto-vectorized C implementation compiled with LLVM 19: Cortex-A55: -35.8% Cortex-A510: -20.4% Cortex-A520: -22.1% Cortex-A76: -54.8% Cortex-A710: -44.5% Cortex-A715: -31.1% Cortex-A720: -31.4% Cortex-X1: -48.5% Cortex-X2: -47.8% Cortex-X3: -47.6% Cortex-X4: -51.1% Cortex-X925: -14.6% Bug: b/42280942 Change-Id: Ib4e89ba230d554f2717052e934ca0e8a109ccc42 Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/6040153 Reviewed-by: Justin Green <greenjustin@google.com> Reviewed-by: Frank Barchard <fbarchard@chromium.org>		2024-11-25 21:10:05 +00:00
..
libyuv	[AArch64] Add Neon implementation of ScaleRowDown2_16_NEON	2024-11-25 21:10:05 +00:00
libyuv.h	NV12 Copy, include scale_uv.h	2020-12-08 18:54:16 +00:00