Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: 75ec398201d556dc3fbb05682471335c94f8dd4f
      
https://github.com/WebKit/WebKit/commit/75ec398201d556dc3fbb05682471335c94f8dd4f
  Author: Sosuke Suzuki <[email protected]>
  Date:   2026-01-10 (Sat, 10 Jan 2026)

  Changed paths:
    A JSTests/microbenchmarks/yarr-interpreter-table-lookup.js
    A JSTests/stress/yarr-interpreter-table-lookup.js
    M Source/JavaScriptCore/yarr/YarrInterpreter.cpp
    M Source/JavaScriptCore/yarr/YarrPattern.h
    M Source/JavaScriptCore/yarr/create_regex_tables

  Log Message:
  -----------
  [YARR] Look up character class table in interpreter
https://bugs.webkit.org/show_bug.cgi?id=304970

Reviewed by Yusuke Suzuki.

This patch changes to look up character class table in Yarr interpreter as well 
as Yarr JIT.

The following bench results was measured with `useRegExpJIT=0`:

                                       TipOfTree                  Patched

yarr-interpreter-table-lookup      112.9213+-1.0854     ^    105.3390+-4.3467   
     ^ definitely 1.0720x faster

Test: JSTests/microbenchmarks/yarr-interpreter-table-lookup.js

* JSTests/microbenchmarks/yarr-interpreter-table-lookup.js: Added.
(benchWordChar):
(benchNonWordChar):
(benchSpaces):
(benchNonSpaces):
* JSTests/stress/yarr-interpreter-table-lookup.js: Added.
(testWordChar):
(testNonWordChar):
(testSpaces):
(testNonSpaces):
(testDigit):
(testNonDigit):
(testTableBoundary):
(testUnicodeSpaces):
* Source/JavaScriptCore/yarr/YarrInterpreter.cpp:
(JSC::Yarr::Interpreter::testCharacterClass):
* Source/JavaScriptCore/yarr/YarrPattern.h:
* Source/JavaScriptCore/yarr/create_regex_tables:

Canonical link: https://commits.webkit.org/305411@main



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