Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: e5f7abfaed5da1f24a206bd04b3e672980710bba
https://github.com/WebKit/WebKit/commit/e5f7abfaed5da1f24a206bd04b3e672980710bba
Author: Sosuke Suzuki <[email protected]>
Date: 2026-01-08 (Thu, 08 Jan 2026)
Changed paths:
A JSTests/microbenchmarks/string-is-well-formed.js
A JSTests/microbenchmarks/string-to-well-formed.js
M Source/JavaScriptCore/runtime/StringPrototype.cpp
M Source/WTF/wtf/CMakeLists.txt
M Source/WTF/wtf/text/StringCommon.cpp
M Source/WTF/wtf/text/StringCommon.h
Log Message:
-----------
[JSC] Optimize `String#isWellFormed` and `String#toWellFormed` using simdutf
https://bugs.webkit.org/show_bug.cgi?id=304842
Reviewed by Yusuke Suzuki.
This patch changes to use simdutf in String.prototype.isWellFormed() and
String.prototype.toWellFormed().
TipOfTree Patched
string-to-well-formed 345.1334+-1.7600 ^ 66.4591+-0.1386 ^
definitely 5.1932x faster
string-is-well-formed 155.4431+-66.9387 ^ 29.0142+-0.4967 ^
definitely 5.3575x faster
* JSTests/microbenchmarks/string-is-well-formed.js: Added.
(testWellFormed):
* JSTests/microbenchmarks/string-to-well-formed.js: Added.
(testToWellFormed):
* Source/JavaScriptCore/runtime/StringPrototype.cpp:
(JSC::JSC_DEFINE_HOST_FUNCTION):
(JSC::illFormedIndex): Deleted.
* Source/WTF/wtf/CMakeLists.txt:
* Source/WTF/wtf/text/StringCommon.cpp:
(WTF::isWellFormedUTF16):
(WTF::toWellFormedUTF16):
* Source/WTF/wtf/text/StringCommon.h:
Canonical link: https://commits.webkit.org/305321@main
To unsubscribe from these emails, change your notification settings at
https://github.com/WebKit/WebKit/settings/notifications
