Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: 31d781e3386c2d49388d3c0274abd1baa52f5e28
https://github.com/WebKit/WebKit/commit/31d781e3386c2d49388d3c0274abd1baa52f5e28
Author: Sosuke Suzuki <[email protected]>
Date: 2026-02-03 (Tue, 03 Feb 2026)
Changed paths:
A JSTests/microbenchmarks/intl-segmenter-grapheme.js
M Source/JavaScriptCore/JavaScriptCore.xcodeproj/project.pbxproj
M Source/JavaScriptCore/Sources.txt
A Source/JavaScriptCore/runtime/IntlSegmentDataObject.cpp
A Source/JavaScriptCore/runtime/IntlSegmentDataObject.h
M Source/JavaScriptCore/runtime/IntlSegmentIterator.cpp
M Source/JavaScriptCore/runtime/IntlSegmenter.cpp
M Source/JavaScriptCore/runtime/IntlSegmenter.h
M Source/JavaScriptCore/runtime/IntlSegments.cpp
M Source/JavaScriptCore/runtime/JSGlobalObject.cpp
M Source/JavaScriptCore/runtime/JSGlobalObject.h
Log Message:
-----------
[JSC] Optimize `Intl.Segmenter` segment data object creation with pre-built
Structure
https://bugs.webkit.org/show_bug.cgi?id=306853
Reviewed by Yusuke Suzuki.
This patch optimizes the creation of segment data objects returned by
Intl.Segmenter by using pre-built Structures with known property offsets,
similar to the pattern used in RegExpMatchesArray.
TipOfTree Patched
intl-segmenter-grapheme 96.5302+-2.6148 ^ 79.4703+-1.1308
^ definitely 1.2147x faster
Test: JSTests/microbenchmarks/intl-segmenter-grapheme.js
* JSTests/microbenchmarks/intl-segmenter-grapheme.js: Added.
(test):
* Source/JavaScriptCore/JavaScriptCore.xcodeproj/project.pbxproj:
* Source/JavaScriptCore/Sources.txt:
* Source/JavaScriptCore/runtime/IntlSegmentDataObject.cpp: Added.
(JSC::createSegmentDataObjectStructure):
(JSC::createSegmentDataObjectWithIsWordLikeStructure):
* Source/JavaScriptCore/runtime/IntlSegmentDataObject.h: Added.
(JSC::createSegmentDataObject):
* Source/JavaScriptCore/runtime/IntlSegmentIterator.cpp:
(JSC::IntlSegmentIterator::next):
* Source/JavaScriptCore/runtime/IntlSegmenter.cpp:
(JSC::IntlSegmenter::createSegmentDataObject): Deleted.
* Source/JavaScriptCore/runtime/IntlSegmenter.h:
* Source/JavaScriptCore/runtime/IntlSegments.cpp:
(JSC::IntlSegments::containing):
* Source/JavaScriptCore/runtime/JSGlobalObject.cpp:
(JSC::JSGlobalObject::init):
(JSC::JSGlobalObject::visitChildrenImpl):
* Source/JavaScriptCore/runtime/JSGlobalObject.h:
(JSC::JSGlobalObject::segmentDataObjectStructure):
(JSC::JSGlobalObject::segmentDataObjectWithIsWordLikeStructure):
Canonical link: https://commits.webkit.org/306748@main
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