Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: b0b694fd099f5692c3d73f7d66abaca58c4f9b4e
https://github.com/WebKit/WebKit/commit/b0b694fd099f5692c3d73f7d66abaca58c4f9b4e
Author: Michael Saboff <msab...@apple.com>
Date: 2022-11-02 (Wed, 02 Nov 2022)
Changed paths:
A JSTests/stress/regexp-strengthreduce-results-noholes.js
M Source/JavaScriptCore/dfg/DFGStrengthReductionPhase.cpp
Log Message:
-----------
Strength reduction analyzes RegEx.exec incorrectly and generate a hole for
the result array
https://bugs.webkit.org/show_bug.cgi?id=245464
rdar://100494428
Reviewed by Mark Lam.
When employing RegExp.exec strength reductions, we need to create "undefined"
entries in the result array
instead of null entries per the EcmaScript spec for RegExp.match.
* JSTests/stress/regexp-strengthreduce-results-noholes.js: Added.
(runRegExp):
(assertSameAsFirstResult):
* Source/JavaScriptCore/dfg/DFGStrengthReductionPhase.cpp:
(JSC::DFG::StrengthReductionPhase::handleNode):
Canonical link: https://commits.webkit.org/256241@main
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