Bug 304835

Summary:	Use faster algorithm in WTF::copyElements() for better performance
Product:	WebKit	Reporter:	Chris Dumez <cdumez>
Component:	Web Template Framework	Assignee:	Chris Dumez <cdumez>
Status:	RESOLVED FIXED
Severity:	Normal	CC:	webkit-bug-importer
Priority:	P2	Keywords:	InRadar
Version:	WebKit Nightly Build
Hardware:	Unspecified
OS:	Unspecified

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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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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