Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: b9864926b53b2fb82d63e7928c7de611a18a7108
https://github.com/WebKit/WebKit/commit/b9864926b53b2fb82d63e7928c7de611a18a7108
Author: Yusuke Suzuki <[email protected]>
Date: 2025-06-23 (Mon, 23 Jun 2025)
Changed paths:
M Source/JavaScriptCore/dfg/DFGSpeculativeJIT.cpp
M Source/JavaScriptCore/dfg/DFGSpeculativeJIT.h
M Source/JavaScriptCore/dfg/DFGSpeculativeJIT64.cpp
M Source/JavaScriptCore/ftl/FTLLowerDFGToB3.cpp
Log Message:
-----------
[JSC] Remove Rope check when it is proven resolved strings
https://bugs.webkit.org/show_bug.cgi?id=294826
rdar://154064512
Reviewed by Yijia Huang.
We apply FTL's rope check optimizations to DFG too. Expand usage of
canBeRope and avoid doing rope checks in DFG well.
* Source/JavaScriptCore/dfg/DFGSpeculativeJIT.cpp:
(JSC::DFG::SpeculativeJIT::compileStringSlice):
(JSC::DFG::SpeculativeJIT::compileToLowerCase):
* Source/JavaScriptCore/dfg/DFGSpeculativeJIT.h:
* Source/JavaScriptCore/dfg/DFGSpeculativeJIT64.cpp:
(JSC::DFG::SpeculativeJIT::compile):
(JSC::DFG::SpeculativeJIT::compileGetByValMegamorphic):
(JSC::DFG::SpeculativeJIT::compileGetByValWithThisMegamorphic):
(JSC::DFG::SpeculativeJIT::compileInByValMegamorphic):
(JSC::DFG::SpeculativeJIT::compilePutByValMegamorphic):
* Source/JavaScriptCore/ftl/FTLLowerDFGToB3.cpp:
(JSC::FTL::DFG::LowerDFGToB3::compileGetByValMegamorphic):
(JSC::FTL::DFG::LowerDFGToB3::compileGetByValWithThisMegamorphic):
(JSC::FTL::DFG::LowerDFGToB3::compilePutByValMegamorphic):
(JSC::FTL::DFG::LowerDFGToB3::compileCompareStrictEq):
Canonical link: https://commits.webkit.org/296530@main
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