Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: b1220971257099a3337168c7759392b62317e79a
      
https://github.com/WebKit/WebKit/commit/b1220971257099a3337168c7759392b62317e79a
  Author: Darin Adler <[email protected]>
  Date:   2025-09-27 (Sat, 27 Sep 2025)

  Changed paths:
    M Source/JavaScriptCore/parser/Lexer.cpp
    M Source/JavaScriptCore/runtime/JSONObject.cpp
    M Source/JavaScriptCore/runtime/LiteralParser.cpp
    M Source/WTF/wtf/SIMDHelpers.h
    M Source/WTF/wtf/SortedArrayMap.h
    M Source/WTF/wtf/text/StringCommon.h

  Log Message:
  -----------
  Remove reliance on std::make_unsigned_t in our optimized SIMD code paths
https://bugs.webkit.org/show_bug.cgi?id=299670
rdar://161486686

Reviewed by Yusuke Suzuki.

* Source/JavaScriptCore/parser/Lexer.cpp:
(JSC::Lexer<T>::parseString): Use SIMD::SameSizeUnsignedInteger.
(JSC::Lexer<T>::parseStringSlowCase): Remove static assertion that requires T 
be an unsigned
scalar type.
(JSC::Lexer<T>::lexWithoutClearingLineTerminator): Use 
SIMD::SameSizeUnsignedInteger.
* Source/JavaScriptCore/runtime/JSONObject.cpp:
(JSC::stringCopySameType): Ditto.
(JSC::stringCopyUpconvert): Ditto.
* Source/JavaScriptCore/runtime/LiteralParser.cpp:
(JSC::reviverMode>::Lexer::lexString): Ditto.

* Source/WTF/wtf/SIMDHelpers.h: Added SizedUnsignedTrait and 
SameSizeUnsignedInteger.
(WTF::SIMD::find): Use SIMD::SameSizeUnsignedInteger.
(WTF::SIMD::count): Ditto.
* Source/WTF/wtf/SortedArrayMap.h:
(WTF::foldForComparison): Ditto.

* Source/WTF/wtf/text/StringCommon.h:
(WTF::compareEach): Cast a bool to an int before using it with the | operator. 
This silences
a warning on some compilers that will otherwise start happening after we make 
changes to the
Latin1Character type.
(WTF::charactersContain): Use SIMD::SameSizeUnsignedInteger.
(WTF::countMatchedCharacters): Ditto.

Canonical link: https://commits.webkit.org/300656@main



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