Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: 0fdf9960015a8210d00f65256142db6bd125adf1
https://github.com/WebKit/WebKit/commit/0fdf9960015a8210d00f65256142db6bd125adf1
Author: Yusuke Suzuki <ysuz...@apple.com>
Date: 2022-12-05 (Mon, 05 Dec 2022)
Changed paths:
M Source/JavaScriptCore/dfg/DFGOperations.cpp
M Source/JavaScriptCore/runtime/JSONObject.cpp
M Source/JavaScriptCore/runtime/JSObject.h
M Source/JavaScriptCore/runtime/JSObjectInlines.h
M Source/JavaScriptCore/runtime/ObjectConstructor.cpp
M Source/JavaScriptCore/runtime/ObjectConstructorInlines.h
M Source/JavaScriptCore/runtime/Structure.h
M Source/JavaScriptCore/runtime/StructureInlines.h
Log Message:
-----------
[JSC] Make Object.values faster
https://bugs.webkit.org/show_bug.cgi?id=248749
rdar://102966742
Reviewed by Justin Michaud.
This patch adds JSObject::fastForEachPropertyWithSideEffectFreeFunctor, and
apply this to Object.values
to accelerate performance. It makes Object.values 3x faster.
ToT Patched
object-values 17.2415+-0.0379 ^ 5.6210+-0.0133 ^
definitely 3.0673x faster
* Source/JavaScriptCore/dfg/DFGOperations.cpp:
(JSC::DFG::JSC_DEFINE_JIT_OPERATION):
* Source/JavaScriptCore/runtime/JSONObject.cpp:
(JSC::Stringifier::Holder::appendNextProperty):
(JSC::FastStringifier::append):
* Source/JavaScriptCore/runtime/JSObject.h:
* Source/JavaScriptCore/runtime/JSObjectInlines.h:
(JSC::JSObject::fastForEachPropertyWithSideEffectFreeFunctor):
* Source/JavaScriptCore/runtime/ObjectConstructor.cpp:
(JSC::JSC_DEFINE_HOST_FUNCTION):
* Source/JavaScriptCore/runtime/ObjectConstructorInlines.h:
(JSC::objectAssignFast):
(JSC::canPerformFastPropertyEnumerationForObjectAssign): Deleted.
(JSC::canPerformFastPropertyEnumerationForJSONStringify): Deleted.
(JSC::canPerformFastPropertyEnumerationForObjectEntries): Deleted.
* Source/JavaScriptCore/runtime/Structure.h:
* Source/JavaScriptCore/runtime/StructureInlines.h:
(JSC::Structure::canPerformFastPropertyEnumeration const):
Canonical link: https://commits.webkit.org/257382@main
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