Commits on Jun 21, 2023

1. [JSC] Inline op_to_this for global object case …

   https://bugs.webkit.org/show_bug.cgi?id=258343
   rdar://problem/111089057
   
   Reviewed by Alexey Shvayka.
   
   This patch inlines non-object-allocating simple ToThis operation in DFG and FTL.
   And we drop OverridesToThis bit, which is no longer necessary.
   
   * Source/JavaScriptCore/dfg/DFGAbstractInterpreterInlines.h:
   (JSC::DFG::isToThisAnIdentity):
   * Source/JavaScriptCore/dfg/DFGSpeculativeJIT.cpp:
   * Source/JavaScriptCore/ftl/FTLLowerDFGToB3.cpp:
   (JSC::FTL::DFG::LowerDFGToB3::compileToThis):
   * Source/JavaScriptCore/runtime/JSBigInt.h:
   * Source/JavaScriptCore/runtime/JSCast.h:
   * Source/JavaScriptCore/runtime/JSScope.h:
   * Source/JavaScriptCore/runtime/JSString.h:
   * Source/JavaScriptCore/runtime/JSType.h:
   * Source/JavaScriptCore/runtime/JSTypeInfo.h:
   (JSC::TypeInfo::perCellBit):
   (JSC::TypeInfo::overridesToThis const): Deleted.
   * Source/JavaScriptCore/runtime/Symbol.h:
   
   Canonical link: https://commits.webkit.org/265373@main

   

   Constellation committed Jun 21, 2023
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