Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: e4a0db79b3fbe27324d0e5610a6c9b9508589171
https://github.com/WebKit/WebKit/commit/e4a0db79b3fbe27324d0e5610a6c9b9508589171
Author: Yusuke Suzuki <[email protected]>
Date: 2025-11-13 (Thu, 13 Nov 2025)
Changed paths:
M Source/JavaScriptCore/dfg/DFGOperations.cpp
M Source/JavaScriptCore/dfg/DFGSpeculativeJIT.cpp
M Source/JavaScriptCore/dfg/DFGSpeculativeJIT32_64.cpp
M Source/JavaScriptCore/dfg/DFGSpeculativeJIT64.cpp
M Source/JavaScriptCore/ftl/FTLLowerDFGToB3.cpp
M Source/JavaScriptCore/runtime/JSMapIterator.h
M Source/JavaScriptCore/runtime/JSSetIterator.h
M Source/JavaScriptCore/runtime/VM.cpp
M Source/JavaScriptCore/runtime/VM.h
Log Message:
-----------
[JSC] Inline MapIteratorNext
https://bugs.webkit.org/show_bug.cgi?id=302458
rdar://164625463
Reviewed by Yijia Huang.
This patch inlines MapIteratorNext fast path in DFG / FTL.
We found that this code is quite hot when Map iteration happens,
and fast path part is succinct enough to be inlined.
* Source/JavaScriptCore/dfg/DFGOperations.cpp:
* Source/JavaScriptCore/dfg/DFGSpeculativeJIT.cpp:
* Source/JavaScriptCore/dfg/DFGSpeculativeJIT32_64.cpp:
(JSC::DFG::SpeculativeJIT::compileMapIteratorNext):
* Source/JavaScriptCore/dfg/DFGSpeculativeJIT64.cpp:
(JSC::DFG::SpeculativeJIT::compileMapIteratorNext):
* Source/JavaScriptCore/ftl/FTLLowerDFGToB3.cpp:
(JSC::FTL::DFG::LowerDFGToB3::compileCompareStrictEq):
* Source/JavaScriptCore/runtime/JSMapIterator.h:
* Source/JavaScriptCore/runtime/JSSetIterator.h:
* Source/JavaScriptCore/runtime/VM.cpp:
(JSC::VM::VM):
(JSC::VM::orderedHashTableDeletedValueSlow): Deleted.
* Source/JavaScriptCore/runtime/VM.h:
(JSC::VM::orderedHashTableDeletedValue):
Canonical link: https://commits.webkit.org/303020@main
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