Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: c1df92d228fc00d75c93f5a6adcd3e8bddb005b7
https://github.com/WebKit/WebKit/commit/c1df92d228fc00d75c93f5a6adcd3e8bddb005b7
Author: Yusuke Suzuki <[email protected]>
Date: 2026-03-04 (Wed, 04 Mar 2026)
Changed paths:
A JSTests/stress/perform-promise-then.js
M Source/JavaScriptCore/dfg/DFGAbstractInterpreterInlines.h
M Source/JavaScriptCore/dfg/DFGClobberize.h
M Source/JavaScriptCore/dfg/DFGConstantFoldingPhase.cpp
M Source/JavaScriptCore/dfg/DFGDoesGC.cpp
M Source/JavaScriptCore/dfg/DFGFixupPhase.cpp
M Source/JavaScriptCore/dfg/DFGMayExit.cpp
M Source/JavaScriptCore/dfg/DFGNodeType.h
M Source/JavaScriptCore/dfg/DFGOperations.cpp
M Source/JavaScriptCore/dfg/DFGOperations.h
M Source/JavaScriptCore/dfg/DFGPredictionPropagationPhase.cpp
M Source/JavaScriptCore/dfg/DFGSafeToExecute.h
M Source/JavaScriptCore/dfg/DFGSpeculativeJIT.cpp
M Source/JavaScriptCore/dfg/DFGSpeculativeJIT.h
M Source/JavaScriptCore/dfg/DFGSpeculativeJIT32_64.cpp
M Source/JavaScriptCore/dfg/DFGSpeculativeJIT64.cpp
M Source/JavaScriptCore/ftl/FTLCapabilities.cpp
M Source/JavaScriptCore/ftl/FTLLowerDFGToB3.cpp
Log Message:
-----------
[JSC] Add PerformPromiseThen node in DFG / FTL
https://bugs.webkit.org/show_bug.cgi?id=309137
rdar://171682191
Reviewed by Justin Michaud.
This patch introduces PerformPromiseThen DFG / FTL node. We convert
PromiseThen to NewInternalFieldObject (for promise) and PerformPromiseThen.
With watchpoint and AbstractInterpreter's proof of Structure, we can
skip species check completely.
Test: JSTests/stress/perform-promise-then.js
* JSTests/stress/perform-promise-then.js: Added.
(shouldBe):
(test):
* Source/JavaScriptCore/dfg/DFGAbstractInterpreterInlines.h:
(JSC::DFG::AbstractInterpreter<AbstractStateType>::executeEffects):
* Source/JavaScriptCore/dfg/DFGClobberize.h:
(JSC::DFG::clobberize):
* Source/JavaScriptCore/dfg/DFGConstantFoldingPhase.cpp:
(JSC::DFG::ConstantFoldingPhase::foldConstants):
* Source/JavaScriptCore/dfg/DFGDoesGC.cpp:
(JSC::DFG::doesGC):
* Source/JavaScriptCore/dfg/DFGFixupPhase.cpp:
(JSC::DFG::FixupPhase::fixupNode):
* Source/JavaScriptCore/dfg/DFGMayExit.cpp:
* Source/JavaScriptCore/dfg/DFGNodeType.h:
* Source/JavaScriptCore/dfg/DFGOperations.cpp:
(JSC::DFG::JSC_DEFINE_NOEXCEPT_JIT_OPERATION):
* Source/JavaScriptCore/dfg/DFGOperations.h:
* Source/JavaScriptCore/dfg/DFGPredictionPropagationPhase.cpp:
* Source/JavaScriptCore/dfg/DFGSafeToExecute.h:
(JSC::DFG::safeToExecute):
* Source/JavaScriptCore/dfg/DFGSpeculativeJIT.cpp:
* Source/JavaScriptCore/dfg/DFGSpeculativeJIT.h:
* Source/JavaScriptCore/dfg/DFGSpeculativeJIT32_64.cpp:
(JSC::DFG::SpeculativeJIT::compile):
* Source/JavaScriptCore/dfg/DFGSpeculativeJIT64.cpp:
(JSC::DFG::SpeculativeJIT::compile):
* Source/JavaScriptCore/ftl/FTLCapabilities.cpp:
(JSC::FTL::canCompile):
* Source/JavaScriptCore/ftl/FTLLowerDFGToB3.cpp:
(JSC::FTL::DFG::LowerDFGToB3::compileNode):
(JSC::FTL::DFG::LowerDFGToB3::compileCompareStrictEq):
Canonical link: https://commits.webkit.org/308636@main
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