[webkit-changes] [WebKit/WebKit] b37512: [JSC] Add fast path for `Array#indexOf` searchs in...

[SUZUKI Sosuke]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: b37512b75772d9e5c8d577984d88cee697acdd00
      https://github.com/WebKit/WebKit/commit/b37512b75772d9e5c8d577984d88cee697acdd00
  Author: Sosuke Suzuki <aosukeke at gmail.com>
  Date:   2025-02-24 (Mon, 24 Feb 2025)

  Changed paths:
    A JSTests/microbenchmarks/array-prototype-indexOf-int32-from-contiguous.js
    A JSTests/stress/array-prototype-indexOf-int32-from-contiguous.js
    M Source/JavaScriptCore/dfg/DFGOperations.cpp

  Log Message:
  -----------
  [JSC] Add fast path for `Array#indexOf` searchs int32 from contiguous array
https://bugs.webkit.org/show_bug.cgi?id=288352

Reviewed by Yusuke Suzuki.

This patch adds fast path for `Array#indexOf` searchs
int32 from contiguous array.

                                                  TipOfTree                  Patched

array-prototype-indexOf-int32-from-contiguous
                                               30.5272+-0.7824     ^     18.8472+-1.2090        ^ definitely 1.6197x faster

* JSTests/microbenchmarks/array-prototype-indexOf-int32-from-contiguous.js: Added.
* Source/JavaScriptCore/dfg/DFGOperations.cpp:
(JSC::DFG::JSC_DEFINE_JIT_OPERATION):

Canonical link: https://commits.webkit.org/290939@main



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