Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: d87038d6ed178738d8d61f55c54ba2d25709283b
https://github.com/WebKit/WebKit/commit/d87038d6ed178738d8d61f55c54ba2d25709283b
Author: Yusuke Suzuki <ysuz...@apple.com>
Date: 2025-03-10 (Mon, 10 Mar 2025)
Changed paths:
M Source/JavaScriptCore/bytecode/SpeculatedType.h
M Source/JavaScriptCore/dfg/DFGAbstractInterpreterInlines.h
M Source/JavaScriptCore/dfg/DFGBackwardsPropagationPhase.cpp
M Source/JavaScriptCore/dfg/DFGByteCodeParser.cpp
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/DFGNode.h
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/dfg/DFGStoreBarrierInsertionPhase.cpp
M Source/JavaScriptCore/ftl/FTLCapabilities.cpp
M Source/JavaScriptCore/ftl/FTLLowerDFGToB3.cpp
M Source/JavaScriptCore/runtime/JSArrayBufferConstructor.cpp
M Source/JavaScriptCore/runtime/JSArrayBufferConstructor.h
M Source/JavaScriptCore/runtime/JSGlobalObject.h
M Source/JavaScriptCore/runtime/JSGlobalObjectInlines.h
Log Message:
-----------
[JSC] Add NewTypedArrayBuffer DFG node
https://bugs.webkit.org/show_bug.cgi?id=289446
rdar://146622741
Reviewed by Yijia Huang.
This patch adds NewTypedArrayBuffer which is converted from `new
ArrayBuffer(argument)`.
We make this node's modeling more precise so that we can make code
including this node optimized well. We also found that our comparison is
doing a bit convervative when our input is polluted with undefined /
null. If AI already proved that we do not have undefined / null fater
fixup phase, then we should make it more efficient form. This patch adds
that optimization in AI and constant folding phase too.
* Source/JavaScriptCore/bytecode/SpeculatedType.h:
(JSC::isInt32OrOtherSpeculation):
(JSC::isInt32OrInt52OrOtherSpeculation):
* Source/JavaScriptCore/dfg/DFGAbstractInterpreterInlines.h:
(JSC::DFG::AbstractInterpreter<AbstractStateType>::executeEffects):
* Source/JavaScriptCore/dfg/DFGBackwardsPropagationPhase.cpp:
(JSC::DFG::BackwardsPropagationPhase::propagate):
* Source/JavaScriptCore/dfg/DFGByteCodeParser.cpp:
(JSC::DFG::ByteCodeParser::handleConstantFunction):
* 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/DFGNode.h:
(JSC::DFG::Node::hasStructure):
(JSC::DFG::Node::shouldSpeculateInt32OrOther):
(JSC::DFG::Node::shouldSpeculateInt52OrOther):
* Source/JavaScriptCore/dfg/DFGNodeType.h:
* Source/JavaScriptCore/dfg/DFGOperations.cpp:
(JSC::DFG::JSC_DEFINE_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/dfg/DFGStoreBarrierInsertionPhase.cpp:
* Source/JavaScriptCore/ftl/FTLCapabilities.cpp:
(JSC::FTL::canCompile):
* Source/JavaScriptCore/ftl/FTLLowerDFGToB3.cpp:
(JSC::FTL::DFG::LowerDFGToB3::compileNode):
(JSC::FTL::DFG::LowerDFGToB3::compileNewTypedArrayBuffer):
* Source/JavaScriptCore/runtime/JSArrayBufferConstructor.cpp:
(JSC::JSGenericArrayBufferConstructor<sharingMode>::constructImpl):
(JSC::constructArrayBufferWithSize):
* Source/JavaScriptCore/runtime/JSArrayBufferConstructor.h:
* Source/JavaScriptCore/runtime/JSGlobalObject.h:
* Source/JavaScriptCore/runtime/JSGlobalObjectInlines.h:
(JSC::JSGlobalObject::arrayBufferStructureConcurrently const):
Canonical link: https://commits.webkit.org/291889@main
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