Bug 252939 - Support loop OSR entry to and from BBQ baseline JIT
Summary: Support loop OSR entry to and from BBQ baseline JIT
Status: RESOLVED FIXED
Alias: None
Product: WebKit
Classification: Unclassified
Component: WebAssembly (show other bugs)
Version: WebKit Nightly Build
Hardware: Unspecified Unspecified
: P2 Normal
Assignee: David Degazio
URL:
Keywords: InRadar
Depends on:
Blocks: 252209
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Reported: 2023-02-24 17:58 PST by David Degazio
Modified: 2023-02-28 12:00 PST (History)
1 user (show)

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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.