Bug 252939

Summary:	Support loop OSR entry to and from BBQ baseline JIT
Product:	WebKit	Reporter:	David Degazio <d_degazio>
Component:	WebAssembly	Assignee:	David Degazio <d_degazio>
Status:	RESOLVED FIXED
Severity:	Normal	CC:	webkit-bug-importer
Priority:	P2	Keywords:	InRadar
Version:	WebKit Nightly Build
Hardware:	Unspecified
OS:	Unspecified
Bug Depends on:
Bug Blocks:	252209

Description David Degazio 2023-02-24 17:58:48 PST

rdar://105909610

While the new BBQ baseline JIT supports entry tier-up checks, we don't currently support tiering up in the middle of loops. This significantly affects our score on JetStream 3, for example on the gcc-loops benchmark, because we end up stuck in the LLInt or BBQ and unable to tier up to BBQ or OMG respectively.

Comment 1 David Degazio 2023-02-24 18:17:52 PST

Pull request: https://github.com/WebKit/WebKit/pull/10675

Comment 2 EWS 2023-02-28 12:00:14 PST

Committed 260955@main (c428fc6916fa): <https://commits.webkit.org/260955@main>

Reviewed commits have been landed. Closing PR #10675 and removing active labels.