Bug 290388

Summary:	[JSC] Optimize searching untyped element from int32 array for `indexOf` and `includes`
Product:	WebKit	Reporter:	Sosuke Suzuki <sosuke>
Component:	JavaScriptCore	Assignee:	Nobody <webkit-unassigned>
Status:	RESOLVED FIXED
Severity:	Normal	CC:	webkit-bug-importer
Priority:	P2	Keywords:	InRadar
Version:	WebKit Nightly Build
Hardware:	Unspecified
OS:	Unspecified

Sosuke Suzuki

Reported 2025-03-25 09:00:44 PDT

This patch adds a dedicated JIT operation for searching untyped element from int32 array for `Array#indexOf` and `Array#includes`. TipOfTree Patched array-prototype-includes-untyped-int32 40.2026+-0.3441 ^ 24.5050+-0.2880 ^ definitely 1.6406x faster array-prototype-indexOf-untyped-int32 37.8560+-1.4731 ^ 24.8404+-0.7800 ^ definitely 1.5240x faster

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Sosuke Suzuki

Comment 1 2025-03-25 09:01:33 PDT

Pull request: https://github.com/WebKit/WebKit/pull/42994

EWS

Comment 2 2025-03-31 23:56:51 PDT

Committed 292999@main (3e9331148002): <https://commits.webkit.org/292999@main> Reviewed commits have been landed. Closing PR #42994 and removing active labels.

Radar WebKit Bug Importer

Comment 3 2025-03-31 23:58:19 PDT

<rdar://problem/148311914>

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