Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: a5760beba07ce4c1e6a21cc3de9affbfbceb0e1b
https://github.com/WebKit/WebKit/commit/a5760beba07ce4c1e6a21cc3de9affbfbceb0e1b
Author: Yusuke Suzuki <[email protected]>
Date: 2026-05-27 (Wed, 27 May 2026)
Changed paths:
M Source/JavaScriptCore/runtime/ObjectConstructor.cpp
Log Message:
-----------
[JSC] Let's always return CoW array from ownPropertyKeys in common case
https://bugs.webkit.org/show_bug.cgi?id=315644
rdar://178025453
Reviewed by Yijia Huang.
Making array return types random (sometimes CoW and sometimes non-CoW)
easily causes mis-speculation in DFG, leading to frequent OSR exit.
Let's just return CoW from ownPropertyKeys in common case consistently.
* Source/JavaScriptCore/runtime/ObjectConstructor.cpp:
(JSC::ownPropertyKeys):
Canonical link: https://commits.webkit.org/313980@main
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