[webkit-changes] [WebKit/WebKit] 5397a2: [JSC] Remove isEnumerator bit from IC

[Yusuke Suzuki]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: 5397a28189756d54a965c2a8f3626fa355e626b2
      https://github.com/WebKit/WebKit/commit/5397a28189756d54a965c2a8f3626fa355e626b2
  Author: Yusuke Suzuki <ysuzuki at apple.com>
  Date:   2024-05-27 (Mon, 27 May 2024)

  Changed paths:
    M Source/JavaScriptCore/bytecode/InlineCacheCompiler.cpp
    M Source/JavaScriptCore/bytecode/StructureStubInfo.cpp
    M Source/JavaScriptCore/bytecode/StructureStubInfo.h
    M Source/JavaScriptCore/dfg/DFGSpeculativeJIT64.cpp
    M Source/JavaScriptCore/ftl/FTLLowerDFGToB3.cpp
    M Source/JavaScriptCore/jit/JITPropertyAccess.cpp

  Log Message:
  -----------
  [JSC] Remove isEnumerator bit from IC
https://bugs.webkit.org/show_bug.cgi?id=274758
rdar://128809016

Reviewed by Justin Michaud.

Remove isEnumerator bit from IC. Originally it was added to prevent from using megamorphic IC in some cases
since megamorphic IC had some cases which do not work well. But now this does not exist. So we do not need this bit.

* Source/JavaScriptCore/bytecode/InlineCacheCompiler.cpp:
(JSC::InlineCacheCompiler::regenerate):
* Source/JavaScriptCore/bytecode/StructureStubInfo.cpp:
(JSC::StructureStubInfo::initializeFromUnlinkedStructureStubInfo):
(JSC::StructureStubInfo::initializeFromDFGUnlinkedStructureStubInfo):
* Source/JavaScriptCore/bytecode/StructureStubInfo.h:
* Source/JavaScriptCore/dfg/DFGSpeculativeJIT64.cpp:
(JSC::DFG::SpeculativeJIT::compileGetByVal):
(JSC::DFG::SpeculativeJIT::compile):
(JSC::DFG::SpeculativeJIT::compileEnumeratorPutByVal):
* Source/JavaScriptCore/ftl/FTLLowerDFGToB3.cpp:
(JSC::FTL::DFG::LowerDFGToB3::compileGetByValImpl):
(JSC::FTL::DFG::LowerDFGToB3::compileCompareStrictEq):
* Source/JavaScriptCore/jit/JITPropertyAccess.cpp:
(JSC::JIT::emit_op_enumerator_get_by_val):
(JSC::JIT::emit_op_enumerator_put_by_val):

Canonical link: https://commits.webkit.org/279355@main



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