Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: 2748be6ccef1a513c22eeee0ac330f7e276d39d0
https://github.com/WebKit/WebKit/commit/2748be6ccef1a513c22eeee0ac330f7e276d39d0
Author: Sosuke Suzuki <[email protected]>
Date: 2025-09-02 (Tue, 02 Sep 2025)
Changed paths:
A JSTests/microbenchmarks/async-from-sync-iterator.js
A JSTests/stress/async-from-sync-iterator-jit.js
M Source/JavaScriptCore/dfg/DFGByteCodeParser.cpp
M Source/JavaScriptCore/dfg/DFGObjectAllocationSinkingPhase.cpp
M Source/JavaScriptCore/dfg/DFGOperations.cpp
M Source/JavaScriptCore/dfg/DFGOperations.h
M Source/JavaScriptCore/dfg/DFGSpeculativeJIT.cpp
M Source/JavaScriptCore/ftl/FTLLowerDFGToB3.cpp
M Source/JavaScriptCore/runtime/Intrinsic.h
M Source/JavaScriptCore/runtime/JSGlobalObject.cpp
M Source/JavaScriptCore/runtime/JSGlobalObject.h
Log Message:
-----------
[JSC] Optimize `@asyncFromSyncIteratorCreate` in DFG/FTL
https://bugs.webkit.org/show_bug.cgi?id=298210
Reviewed by Yusuke Suzuki.
This patch changes to optimize `@asyncFromSyncIteratorCreate` in DFG/FTL.
TipOfTree Patched
async-from-sync-iterator 10.9432+-0.3482 ^ 9.8568+-0.1681
^ definitely 1.1102x faster
* JSTests/microbenchmarks/async-from-sync-iterator.js: Added.
(test):
(const.syncIterable.Symbol.iterator):
* JSTests/stress/async-from-sync-iterator-jit.js: Added.
(shouldBe):
(async test):
(getSyncIterable):
* Source/JavaScriptCore/dfg/DFGByteCodeParser.cpp:
(JSC::DFG::ByteCodeParser::handleIntrinsicCall):
* Source/JavaScriptCore/dfg/DFGObjectAllocationSinkingPhase.cpp:
* Source/JavaScriptCore/dfg/DFGOperations.cpp:
(JSC::DFG::JSC_DEFINE_JIT_OPERATION):
* Source/JavaScriptCore/dfg/DFGOperations.h:
* Source/JavaScriptCore/dfg/DFGSpeculativeJIT.cpp:
* Source/JavaScriptCore/ftl/FTLLowerDFGToB3.cpp:
(JSC::FTL::DFG::LowerDFGToB3::compileNewInternalFieldObject):
* Source/JavaScriptCore/runtime/Intrinsic.h:
* Source/JavaScriptCore/runtime/JSGlobalObject.cpp:
(JSC::JSGlobalObject::init):
(JSC::JSGlobalObject::visitChildrenImpl):
* Source/JavaScriptCore/runtime/JSGlobalObject.h:
(JSC::JSGlobalObject::asyncFromSyncIteratorStructure const):
Canonical link: https://commits.webkit.org/299481@main
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