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Avoiding LD4 and unrolling gives a good perf improvement for the little core especially. Observed reduction in runtime relative to the existing Neon code: Cortex-A510: -69.7% Cortex-A720: -7.7% Cortex-X2: -41.9% Cortex-X4: -14.5% Bug: libyuv:973 Change-Id: I4b3292fa23a6e866d761dfca035538cb09eba9bc Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/5522315 Reviewed-by: Frank Barchard <fbarchard@chromium.org> Reviewed-by: Justin Green <greenjustin@google.com> Commit-Queue: Frank Barchard <fbarchard@chromium.org> |
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