Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: 6e5a36bbc5f22eee5d8c40921cd4a5a8d7e6600a
https://github.com/WebKit/WebKit/commit/6e5a36bbc5f22eee5d8c40921cd4a5a8d7e6600a
Author: Yusuke Suzuki <ysuz...@apple.com>
Date: 2024-05-17 (Fri, 17 May 2024)
Changed paths:
M Source/JavaScriptCore/bytecode/InlineCacheCompiler.cpp
M Source/JavaScriptCore/bytecode/InlineCacheCompiler.h
Log Message:
-----------
[JSC] Make megamorphic IC stateless
https://bugs.webkit.org/show_bug.cgi?id=274316
rdar://128277946
Reviewed by Keith Miller.
We store expected UniquedStringImpl into InlineCacheHandler (must not keep it
as Ref! lifetime is managed by StructureStubInfo) in megamorphic IC
when Handler IC is enabled. And we retrieve it from GPRInfo::handlerGPR. So we
can share one code for all of megamorphic IC, thus it becomes stateless.
* Source/JavaScriptCore/bytecode/InlineCacheCompiler.cpp:
(JSC::isStateless):
(JSC::InlineCacheHandler::InlineCacheHandler):
(JSC::InlineCacheCompiler::generateWithGuard):
(JSC::InlineCacheCompiler::regenerate):
* Source/JavaScriptCore/bytecode/InlineCacheCompiler.h:
Canonical link: https://commits.webkit.org/278946@main
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