RESOLVED FIXED304835
Use faster algorithm in WTF::copyElements() for better performance 
https://bugs.webkit.org/show_bug.cgi?id=304835
Summary Use faster algorithm in WTF::copyElements() for better performance
Chris Dumez
Reported 2026-01-01 17:35:33 PST
Use NEON instead of SIMD in WTF::copyElements() for better performance. This results in a 0.56%-0.74% progression on Speedometer 3 on macOS, depending on the model. It is performance neutral on iOS and on JetStream.
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Add attachment proposed patch, testcase, etc.
Chris Dumez
Comment 1 2026-01-01 17:43:50 PST
Pull request: https://github.com/WebKit/WebKit/pull/55992
EWS
Comment 2 2026-01-04 21:45:07 PST
Committed 305095@main (e2cf0b9d1b39): <https://commits.webkit.org/305095@main> Reviewed commits have been landed. Closing PR #55992 and removing active labels.
Radar WebKit Bug Importer
Comment 3 2026-01-04 21:46:12 PST
<rdar://problem/167532183>
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