Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: 4d0bfb7d6dd5a7cd3fa6e6649336bd74dffb9da3
https://github.com/WebKit/WebKit/commit/4d0bfb7d6dd5a7cd3fa6e6649336bd74dffb9da3
Author: Yusuke Suzuki <[email protected]>
Date: 2022-10-12 (Wed, 12 Oct 2022)
Changed paths:
M Source/JavaScriptCore/dfg/DFGGraph.h
M Source/JavaScriptCore/dfg/DFGSpeculativeJIT.cpp
M Source/JavaScriptCore/ftl/FTLLowerDFGToB3.cpp
M Source/JavaScriptCore/runtime/JSGlobalObject.cpp
M Source/JavaScriptCore/runtime/JSGlobalObject.h
M Source/JavaScriptCore/runtime/JSGlobalObjectInlines.h
M Source/JavaScriptCore/runtime/StringPrototype.h
Log Message:
-----------
[JSC] Use watchpoint-set for StringPrototype sane chain checks
https://bugs.webkit.org/show_bug.cgi?id=246384
rdar://101062242
Reviewed by Justin Michaud.
This patch uses JSGlobalObject's WatchpointSet for StringPrototype sane chain
checks
in DFG / FTL so that we can purge adhoc transition watchpoint insertion from
DFG / FTL.
This basically consolidates watchpoints into JSGlobalObject instead of
scattering them
in various Structures at random places, and it paves the way to uDFG:
decoupling JSGlobalObject
and checking particular watchpoint set condition is easier for LinkerIR in uDFG.
* Source/JavaScriptCore/dfg/DFGGraph.h:
* Source/JavaScriptCore/dfg/DFGSpeculativeJIT.cpp:
(JSC::DFG::SpeculativeJIT::compileGetByValOnString):
* Source/JavaScriptCore/ftl/FTLLowerDFGToB3.cpp:
(JSC::FTL::DFG::LowerDFGToB3::compileStringCharAtImpl):
* Source/JavaScriptCore/runtime/JSGlobalObject.cpp:
(JSC::JSGlobalObject::installSaneChainWatchpoints):
* Source/JavaScriptCore/runtime/JSGlobalObject.h:
(JSC::JSGlobalObject::stringPrototypeChainIsSaneWatchpointSet):
* Source/JavaScriptCore/runtime/JSGlobalObjectInlines.h:
(JSC::JSGlobalObject::stringPrototypeChainIsSane):
* Source/JavaScriptCore/runtime/StringPrototype.h:
Canonical link: https://commits.webkit.org/255449@main
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