Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: 4084cae3554fdd89eff4bd49cb60b0f4944142a2
      
https://github.com/WebKit/WebKit/commit/4084cae3554fdd89eff4bd49cb60b0f4944142a2
  Author: Yusuke Suzuki <ysuz...@apple.com>
  Date:   2024-07-08 (Mon, 08 Jul 2024)

  Changed paths:
    M Source/WTF/wtf/SIMDHelpers.h
    M Source/WebCore/html/parser/HTMLDocumentParserFastPath.cpp

  Log Message:
  -----------
  Apply SIMD table lookup to 16bit characters in HTML fast path parser
https://bugs.webkit.org/show_bug.cgi?id=276244
rdar://131153910

Reviewed by Justin Michaud.

280670@main applied SIMD table lookup to 8bit characters. But since searching 
characters are all ASCII,
this method can be easily applied to 16bit characters too: Use NEON SIMD to 
load 16bit characters in interleaved manner (lowers and uppers),
and checking uppers are zero and lowers are searching characters via table 
lookup.

* Source/WTF/wtf/SIMDHelpers.h:
(WTF::SIMD::findInterleaved):
* Source/WebCore/html/parser/HTMLDocumentParserFastPath.cpp:
(WebCore::HTMLFastPathParser::scanText):
(WebCore::HTMLFastPathParser::scanAttributeValue):

Canonical link: https://commits.webkit.org/280741@main



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