Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: 6fddaa00b61499746a1ae20695da6841ed2c7911
https://github.com/WebKit/WebKit/commit/6fddaa00b61499746a1ae20695da6841ed2c7911
Author: Yusuke Suzuki <[email protected]>
Date: 2026-07-15 (Wed, 15 Jul 2026)
Changed paths:
M Source/JavaScriptCore/heap/MarkStack.h
M Source/JavaScriptCore/heap/SlotVisitor.cpp
Log Message:
-----------
[JSC] Do prefetching in SlotVisitor::performIncrementOfDraining too
https://bugs.webkit.org/show_bug.cgi?id=319483
rdar://182289152
Reviewed by Keith Miller.
We apply the same change in 316327@main to
SlotVisitor::performIncrementOfDraining.
Let's perform prefetching onto the next cell. We factor the pop + software
prefetch
into MarkStackArray::popAndPrefetch so both draining loops share it.
* Source/JavaScriptCore/heap/MarkStack.h:
(JSC::MarkStackArray::popAndPrefetch):
* Source/JavaScriptCore/heap/SlotVisitor.cpp:
(JSC::SlotVisitor::drain):
(JSC::SlotVisitor::performIncrementOfDraining):
Canonical link: https://commits.webkit.org/317253@main
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