2019-06-19  Alexey Shvayka  <shvaikalesh@gmail.com>

        Optimize `resolve` method lookup in Promise static methods
        https://bugs.webkit.org/show_bug.cgi?id=198864

        Reviewed by Yusuke Suzuki.

        Lookup `resolve` method only once in Promise.{all,allSettled,race}.
        (https://github.com/tc39/ecma262/pull/1506)

        Already implemented in V8.

        * builtins/PromiseConstructor.js:

2019-06-19  Tadeu Zagallo  <tzagallo@apple.com>

        Some of the ASSERTs in CachedTypes.cpp should be RELEASE_ASSERTs
        https://bugs.webkit.org/show_bug.cgi?id=199030

        Reviewed by Mark Lam.

        These assertions represent strong assumptions that the cache makes so
        it's not safe to keep executing if they fail.

        * runtime/CachedTypes.cpp:
        (JSC::Encoder::malloc):
        (JSC::Encoder::Page::alignEnd):
        (JSC::Decoder::ptrForOffsetFromBase):
        (JSC::Decoder::handleForEnvironment const):
        (JSC::Decoder::setHandleForEnvironment):
        (JSC::CachedPtr::get const):
        (JSC::CachedOptional::encode):
        (JSC::CachedOptional::decodeAsPtr const): Deleted.

2019-06-19  Adrian Perez de Castro  <aperez@igalia.com>

        [WPE][GTK] Fix build with unified sources disabled
        https://bugs.webkit.org/show_bug.cgi?id=198752

        Reviewed by Michael Catanzaro.

        * runtime/WeakObjectRefConstructor.h: Add missing inclusion of InternalFunction.h
        and forward declaration of WeakObjectRefPrototype.
        * wasm/js/WebAssemblyFunction.cpp: Add missing inclusion of JSWebAssemblyHelpers.h

2019-06-19  Justin Michaud  <justin_michaud@apple.com>

        [WASM-References] Rename anyfunc to funcref
        https://bugs.webkit.org/show_bug.cgi?id=198983

        Reviewed by Yusuke Suzuki.

        Anyfunc should become funcref since it was renamed in the spec. We should also support the string 'anyfunc' in the table constructor since this is 
        the only non-binary-format place where it is exposed to users.

        * wasm/WasmAirIRGenerator.cpp:
        (JSC::Wasm::AirIRGenerator::gFuncref):
        (JSC::Wasm::AirIRGenerator::tmpForType):
        (JSC::Wasm::AirIRGenerator::emitCCall):
        (JSC::Wasm::AirIRGenerator::moveOpForValueType):
        (JSC::Wasm::AirIRGenerator::AirIRGenerator):
        (JSC::Wasm::AirIRGenerator::addLocal):
        (JSC::Wasm::AirIRGenerator::addConstant):
        (JSC::Wasm::AirIRGenerator::addRefFunc):
        (JSC::Wasm::AirIRGenerator::addReturn):
        (JSC::Wasm::AirIRGenerator::gAnyfunc): Deleted.
        * wasm/WasmCallingConvention.h:
        (JSC::Wasm::CallingConventionAir::marshallArgument const):
        (JSC::Wasm::CallingConventionAir::setupCall const):
        * wasm/WasmExceptionType.h:
        * wasm/WasmFormat.h:
        (JSC::Wasm::isValueType):
        (JSC::Wasm::isSubtype):
        (JSC::Wasm::TableInformation::wasmType const):
        * wasm/WasmFunctionParser.h:
        (JSC::Wasm::FunctionParser<Context>::parseExpression):
        * wasm/WasmSectionParser.cpp:
        (JSC::Wasm::SectionParser::parseTableHelper):
        (JSC::Wasm::SectionParser::parseElement):
        (JSC::Wasm::SectionParser::parseInitExpr):
        * wasm/WasmValidate.cpp:
        (JSC::Wasm::Validate::addRefFunc):
        * wasm/js/JSToWasm.cpp:
        (JSC::Wasm::createJSToWasmWrapper):
        * wasm/js/WasmToJS.cpp:
        (JSC::Wasm::wasmToJS):
        * wasm/js/WebAssemblyFunction.cpp:
        (JSC::callWebAssemblyFunction):
        (JSC::WebAssemblyFunction::jsCallEntrypointSlow):
        * wasm/js/WebAssemblyModuleRecord.cpp:
        (JSC::WebAssemblyModuleRecord::link):
        * wasm/js/WebAssemblyTableConstructor.cpp:
        (JSC::constructJSWebAssemblyTable):
        * wasm/wasm.json:

2019-06-19  Fujii Hironori  <Hironori.Fujii@sony.com>

        [CMake][Win] CombinedDomains.json is generated twice in JavaScriptCore_CopyPrivateHeaders and JavaScriptCore projects
        https://bugs.webkit.org/show_bug.cgi?id=198853

        Reviewed by Don Olmstead.

        JavaScriptCore_CopyPrivateHeaders target needs to have a direct or
        indirect dependency of JavaScriptCore target for CMake Visual
        Studio generator to eliminate duplicated custom commands.

        * CMakeLists.txt: Added JavaScriptCore as a dependency of JavaScriptCore_CopyPrivateHeaders.

2019-06-18  Yusuke Suzuki  <ysuzuki@apple.com>

        [JSC] JSLock should be WebThread aware
        https://bugs.webkit.org/show_bug.cgi?id=198911

        Reviewed by Geoffrey Garen.

        Since WebKitLegacy content rendering is done in WebThread instead of the main thread in iOS, user of WebKitLegacy (e.g. UIWebView) needs
        to grab the WebThread lock (which is a recursive lock) in the main thread when touching the WebKitLegacy content.
        But, WebKitLegacy can expose JSContext for the web view. And we can interact with the JS content through JavaScriptCore APIs. However,
        since WebThread is a concept in WebCore, JavaScriptCore APIs do not grab the WebThread lock. As a result, WebKitLegacy web content can be
        modified from the main thread without grabbing the WebThread lock through JavaScriptCore APIs.

        This patch makes JSC aware of WebThread: JSLock grabs the WebThread lock before grabbing JS's lock. While this seems layering violation,
        we already have many USE(WEB_THREAD) and WebThread aware code in WTF. Eventually, we should move WebThread code from WebCore to WTF since
        JSC and WTF need to be aware of WebThread. But, for now, we just use the function pointer exposed by WebCore.

        Since both JSLock and the WebThread lock are recursive locks, nested locking is totally OK. The possible problem is the order of locking.
        We ensure that we always grab locks in (1) the WebThread lock and (2) JSLock order.

        In JSLock, we take the WebThread lock, but we do not unlock it. This is how we use the WebThread lock: the WebThread lock is released
        automatically when RunLoop finishes the current cycle, and in WebKitLegacy, we do not call unlocking function of the WebThread lock except
        for some edge cases.

        * API/JSVirtualMachine.mm:
        (-[JSVirtualMachine isWebThreadAware]):
        * API/JSVirtualMachineInternal.h:
        * runtime/JSLock.cpp:
        (JSC::JSLockHolder::JSLockHolder):
        (JSC::JSLock::lock):
        (JSC::JSLockHolder::init): Deleted.
        * runtime/JSLock.h:
        (JSC::JSLock::makeWebThreadAware):
        (JSC::JSLock::isWebThreadAware const):

2019-06-18  Justin Michaud  <justin_michaud@apple.com>

        [WASM-References] Add support for Table.size, grow and fill instructions
        https://bugs.webkit.org/show_bug.cgi?id=198761

        Reviewed by Yusuke Suzuki.

        Add support for Table.size, grow and fill instructions. This also required
        adding support for two-byte opcodes to the ops generator.

        * wasm/WasmAirIRGenerator.cpp:
        (JSC::Wasm::AirIRGenerator::gAnyref):
        (JSC::Wasm::AirIRGenerator::tmpForType):
        (JSC::Wasm::AirIRGenerator::addTableSize):
        (JSC::Wasm::AirIRGenerator::addTableGrow):
        (JSC::Wasm::AirIRGenerator::addTableFill):
        * wasm/WasmB3IRGenerator.cpp:
        (JSC::Wasm::B3IRGenerator::addTableSize):
        (JSC::Wasm::B3IRGenerator::addTableGrow):
        (JSC::Wasm::B3IRGenerator::addTableFill):
        * wasm/WasmExceptionType.h:
        * wasm/WasmFormat.h:
        (JSC::Wasm::TableInformation::wasmType const):
        * wasm/WasmFunctionParser.h:
        (JSC::Wasm::FunctionParser<Context>::parseExpression):
        (JSC::Wasm::FunctionParser<Context>::parseUnreachableExpression):
        * wasm/WasmInstance.cpp:
        (JSC::Wasm::doWasmTableGrow):
        (JSC::Wasm::doWasmTableFill):
        * wasm/WasmInstance.h:
        * wasm/WasmTable.cpp:
        (JSC::Wasm::Table::grow):
        * wasm/WasmValidate.cpp:
        (JSC::Wasm::Validate::addTableSize):
        (JSC::Wasm::Validate::addTableGrow):
        (JSC::Wasm::Validate::addTableFill):
        * wasm/generateWasmOpsHeader.py:
        (opcodeMacroizer):
        (ExtTableOpType):
        * wasm/wasm.json:

2019-06-18  Keith Miller  <keith_miller@apple.com>

        Unreviewed, fix signature of currentWeakRefVersion to return an uintptr_t.

        * runtime/VM.h:
        (JSC::VM::currentWeakRefVersion const):

2019-06-18  Justin Michaud  <justin_michaud@apple.com>

        [WASM-References] Add support for multiple tables
        https://bugs.webkit.org/show_bug.cgi?id=198760

        Reviewed by Saam Barati.

        Support multiple wasm tables. We turn tableInformation into a tables array, and update all of the
        existing users to give a table index. The array of Tables in Wasm::Instance is hung off the tail
        to make it easier to use from jit code. 

        * wasm/WasmAirIRGenerator.cpp:
        (JSC::Wasm::AirIRGenerator::AirIRGenerator):
        (JSC::Wasm::AirIRGenerator::addTableGet):
        (JSC::Wasm::AirIRGenerator::addTableSet):
        (JSC::Wasm::AirIRGenerator::addCallIndirect):
        * wasm/WasmB3IRGenerator.cpp:
        (JSC::Wasm::B3IRGenerator::B3IRGenerator):
        (JSC::Wasm::B3IRGenerator::addTableGet):
        (JSC::Wasm::B3IRGenerator::addTableSet):
        (JSC::Wasm::B3IRGenerator::addCallIndirect):
        * wasm/WasmExceptionType.h:
        * wasm/WasmFormat.h:
        (JSC::Wasm::Element::Element):
        * wasm/WasmFunctionParser.h:
        (JSC::Wasm::FunctionParser<Context>::parseExpression):
        (JSC::Wasm::FunctionParser<Context>::parseUnreachableExpression):
        * wasm/WasmInstance.cpp:
        (JSC::Wasm::Instance::Instance):
        (JSC::Wasm::Instance::create):
        (JSC::Wasm::Instance::extraMemoryAllocated const):
        (JSC::Wasm::Instance::table):
        (JSC::Wasm::Instance::setTable):
        * wasm/WasmInstance.h:
        (JSC::Wasm::Instance::updateCachedMemory):
        (JSC::Wasm::Instance::offsetOfGlobals):
        (JSC::Wasm::Instance::offsetOfTablePtr):
        (JSC::Wasm::Instance::allocationSize):
        (JSC::Wasm::Instance::table): Deleted.
        (JSC::Wasm::Instance::setTable): Deleted.
        (JSC::Wasm::Instance::offsetOfTable): Deleted.
        * wasm/WasmModuleInformation.h:
        (JSC::Wasm::ModuleInformation::tableCount const):
        * wasm/WasmSectionParser.cpp:
        (JSC::Wasm::SectionParser::parseImport):
        (JSC::Wasm::SectionParser::parseTableHelper):
        (JSC::Wasm::SectionParser::parseTable):
        (JSC::Wasm::SectionParser::parseElement):
        * wasm/WasmTable.h:
        (JSC::Wasm::Table::owner const):
        * wasm/WasmValidate.cpp:
        (JSC::Wasm::Validate::addTableGet):
        (JSC::Wasm::Validate::addTableSet):
        (JSC::Wasm::Validate::addCallIndirect):
        * wasm/js/JSWebAssemblyInstance.cpp:
        (JSC::JSWebAssemblyInstance::JSWebAssemblyInstance):
        (JSC::JSWebAssemblyInstance::visitChildren):
        * wasm/js/JSWebAssemblyInstance.h:
        * wasm/js/WebAssemblyModuleRecord.cpp:
        (JSC::WebAssemblyModuleRecord::link):
        (JSC::WebAssemblyModuleRecord::evaluate):
        * wasm/wasm.json:

2019-06-18  Alexey Shvayka  <shvaikalesh@gmail.com>

        [ESNExt] String.prototype.matchAll
        https://bugs.webkit.org/show_bug.cgi?id=186694

        Reviewed by Yusuke Suzuki.

        Implement String.prototype.matchAll.
        (https://tc39.es/ecma262/#sec-string.prototype.matchall)

        Also rename @globalPrivate @constructor functions and C++ variables holding them.

        Shipping in Chrome since version 73.
        Shipping in Firefox since version 67.

        * CMakeLists.txt:
        * DerivedSources-input.xcfilelist:
        * DerivedSources.make:
        * JavaScriptCore.xcodeproj/project.pbxproj:
        * Scripts/wkbuiltins/builtins_generate_combined_header.py:
        (get_var_name):
        (generate_section_for_global_private_code_name_macro):
        * Sources.txt:
        * builtins/ArrayPrototype.js:
        (globalPrivate.ArrayIterator):
        (values):
        (keys):
        (entries):
        (globalPrivate.createArrayIterator): Deleted.
        * builtins/AsyncFromSyncIteratorPrototype.js:
        (globalPrivate.createAsyncFromSyncIterator):
        (globalPrivate.AsyncFromSyncIterator):
        (globalPrivate.AsyncFromSyncIteratorConstructor): Deleted.
        * builtins/BuiltinNames.h:
        * builtins/MapPrototype.js:
        (globalPrivate.MapIterator):
        (values):
        (keys):
        (entries):
        (globalPrivate.createMapIterator): Deleted.
        * builtins/RegExpPrototype.js:
        (globalPrivate.RegExpStringIterator):
        (overriddenName.string_appeared_here.matchAll):
        * builtins/RegExpStringIteratorPrototype.js: Added.
        (next):
        * builtins/SetPrototype.js:
        (globalPrivate.SetIterator):
        (values):
        (entries):
        (globalPrivate.createSetIterator): Deleted.
        * builtins/StringPrototype.js:
        (matchAll):
        * builtins/TypedArrayPrototype.js:
        (values):
        (keys):
        (entries):
        * runtime/CommonIdentifiers.h:
        * runtime/JSGlobalObject.cpp:
        (JSC::JSGlobalObject::init):
        * runtime/RegExpPrototype.cpp:
        (JSC::RegExpPrototype::finishCreation):
        * runtime/RegExpStringIteratorPrototype.cpp: Added.
        (JSC::RegExpStringIteratorPrototype::finishCreation):
        * runtime/RegExpStringIteratorPrototype.h: Added.
        * runtime/StringPrototype.cpp:

2019-06-18  Keith Miller  <keith_miller@apple.com>

        Add support for WeakRef
        https://bugs.webkit.org/show_bug.cgi?id=198710

        Reviewed by Yusuke Suzuki.

        Add support for WeakRefs which are now at stage 3
        (https://tc39.es/proposal-weakrefs). This patch doesn't add
        support for FinalizationGroups, which I'll add in another patch.

        Some other things of interest. Per the spec, we cannot collect a
        weak refs target unless it has not been dereffed (or created) in
        the current microtask turn. i.e. WeakRefs are only allowed to be
        collected at the end of a drain of the Microtask queue. My
        understanding for this behavior is to reduce implementation
        dependence on specific GC behavior in a given browser.

        We track if a WeakRef is retaining its target by using a version
        number on each WeakRef as well as on the VM. Whenever a WeakRef is
        derefed we update its version number to match the VM's then
        WriteBarrier ourselves. During marking if the VM and the WeakRef
        have the same version number, the target is visited.

        * JavaScriptCore.xcodeproj/project.pbxproj:
        * Sources.txt:
        * heap/Heap.cpp:
        (JSC::Heap::finalizeUnconditionalFinalizers):
        * jsc.cpp:
        (GlobalObject::finishCreation):
        (functionReleaseWeakRefs):
        * runtime/CommonIdentifiers.h:
        * runtime/JSGlobalObject.cpp:
        * runtime/JSGlobalObject.h:
        * runtime/JSWeakObjectRef.cpp: Added.
        (JSC::JSWeakObjectRef::finishCreation):
        (JSC::JSWeakObjectRef::visitChildren):
        (JSC::JSWeakObjectRef::finalizeUnconditionally):
        (JSC::JSWeakObjectRef::toStringName):
        * runtime/JSWeakObjectRef.h: Added.
        * runtime/VM.cpp:
        (JSC::VM::drainMicrotasks):
        * runtime/VM.h:
        (JSC::VM::setOnEachMicrotaskTick):
        (JSC::VM::finalizeSynchronousJSExecution):
        (JSC::VM::currentWeakRefVersion const):
        * runtime/WeakObjectRefConstructor.cpp: Added.
        (JSC::WeakObjectRefConstructor::finishCreation):
        (JSC::WeakObjectRefConstructor::WeakObjectRefConstructor):
        (JSC::callWeakRef):
        (JSC::constructWeakRef):
        * runtime/WeakObjectRefConstructor.h: Added.
        (JSC::WeakObjectRefConstructor::create):
        (JSC::WeakObjectRefConstructor::createStructure):
        * runtime/WeakObjectRefPrototype.cpp: Added.
        (JSC::WeakObjectRefPrototype::finishCreation):
        (JSC::getWeakRef):
        (JSC::protoFuncWeakRefDeref):
        * runtime/WeakObjectRefPrototype.h: Added.

2019-06-18  Tadeu Zagallo  <tzagallo@apple.com>

        Add missing mutator fence in compileNewFunction
        https://bugs.webkit.org/show_bug.cgi?id=198849
        <rdar://problem/51733890>

        Reviewed by Saam Barati.

        Follow-up after r246553. Saam pointed out that we still need a mutator
        fence before allocating the FunctionRareData, since the allocation
        might trigger a slow path call.

        * dfg/DFGSpeculativeJIT.cpp:
        (JSC::DFG::SpeculativeJIT::compileNewFunctionCommon):
        * ftl/FTLLowerDFGToB3.cpp:
        (JSC::FTL::DFG::LowerDFGToB3::compileNewFunction):

2019-06-18  Tadeu Zagallo  <tzagallo@apple.com>

        DFG code should not reify the names of builtin functions with private names
        https://bugs.webkit.org/show_bug.cgi?id=198849
        <rdar://problem/51733890>

        Reviewed by Filip Pizlo.

        Builtin functions that have a private name call setHasReifiedName from finishCreation.
        When compiled with DFG and FTL, that does not get called and the function ends up reifying
        its name. In order to fix that, we initialize FunctionRareData and set m_hasReifiedName to
        true from compileNewFunction in both DFG and FTL.

        * bytecode/InternalFunctionAllocationProfile.h:
        (JSC::InternalFunctionAllocationProfile::offsetOfStructure):
        * bytecode/ObjectAllocationProfile.h:
        (JSC::ObjectAllocationProfileWithPrototype::offsetOfPrototype):
        * bytecode/UnlinkedFunctionExecutable.h:
        * dfg/DFGSpeculativeJIT.cpp:
        (JSC::DFG::SpeculativeJIT::compileNewFunctionCommon):
        * ftl/FTLAbstractHeapRepository.h:
        * ftl/FTLLowerDFGToB3.cpp:
        (JSC::FTL::DFG::LowerDFGToB3::compileNewFunction):
        * runtime/FunctionExecutable.h:
        * runtime/FunctionRareData.h:
        * runtime/JSFunction.cpp:
        (JSC::JSFunction::finishCreation):
        * runtime/JSFunction.h:
        * runtime/JSFunctionInlines.h:
        (JSC::JSFunction::isAnonymousBuiltinFunction const):

2019-06-18  Keith Miller  <keith_miller@apple.com>

        MaybeParseAsGeneratorForScope sometimes loses track of its scope ref
        https://bugs.webkit.org/show_bug.cgi?id=198969
        <rdar://problem/51620714>

        Reviewed by Tadeu Zagallo.

        Sometimes if the parser has enough nested scopes
        MaybeParseAsGeneratorForScope can lose track of the ScopeRef it
        should be tracking. This is because the parser sometimes relocates
        its ScopeRefs. To fix this MaybeParseAsGeneratorForScope should
        hold the scope ref it's watching.

        * parser/Parser.cpp:
        (JSC::Scope::MaybeParseAsGeneratorForScope::MaybeParseAsGeneratorForScope):
        (JSC::Scope::MaybeParseAsGeneratorForScope::~MaybeParseAsGeneratorForScope):

2019-06-17  Justin Michaud  <justin_michaud@apple.com>

        Validate that table element type is funcref if using an element section
        https://bugs.webkit.org/show_bug.cgi?id=198910

        Reviewed by Yusuke Suzuki.

        Add missing validation when attempting to add an element section to an anyref table.

        * wasm/WasmSectionParser.cpp:
        (JSC::Wasm::SectionParser::parseElement):

2019-06-17  Tadeu Zagallo  <tzagallo@apple.com>

        Concurrent GC should check the conn before starting a new collection cycle
        https://bugs.webkit.org/show_bug.cgi?id=198913
        <rdar://problem/49515149>

        Reviewed by Filip Pizlo.

        Heap::requestCollection tries to steal the conn as an optimization to avoid waking up the collector
        thread if it's idle. We determine if the collector is idle by ensuring that there are no pending collections
        and that the current GC phase is NotRunning. However, that's not safe immediately after the concurrent
        GC has finished processing the last pending request. The collector thread will runEndPhase and immediately
        start runNotRunningPhase, without checking if it still has the conn. If the mutator has stolen the conn in
        the mean time, this will lead to both threads collecting concurrently, and eventually we'll crash in checkConn,
        since the collector is running but doesn't have the conn anymore.

        To solve this, we check if we still have the conn after holding the lock in runNotRunningPhase, in case the mutator
        has stolen the conn. Ideally, we wouldn't let the mutator steal the conn in the first place, but that doesn't seem
        trivial to determine.

        * heap/Heap.cpp:
        (JSC::Heap::runNotRunningPhase):

2019-06-17  Yusuke Suzuki  <ysuzuki@apple.com>

        [JSC] Introduce DisposableCallSiteIndex to enforce type-safety
        https://bugs.webkit.org/show_bug.cgi?id=197378

        Reviewed by Saam Barati.

        Some of CallSiteIndex are disposable. This is because some of CallSiteIndex are allocated and freed at runtime (not DFG/FTL compile time).
        The example is CallSiteIndex for exception handler in GCAwareJITStubRoutineWithExceptionHandler. If we do not allocate and free CallSiteIndex,
        we will create a new CallSiteIndex continuously and leak memory.

        The other CallSiteIndex are not simply disposable because the ownership model is not unique one. They can be shared between multiple clients.
        But not disposing them is OK because they are static one: they are allocated when compiling DFG/FTL, and we do not allocate such CallSiteIndex
        at runtime.

        To make this difference explicit and avoid disposing non-disposable CallSiteIndex accidentally, we introduce DisposableCallSiteIndex type, and
        enforce type-safety to some degree.

        We also correctly update the DisposableCallSiteIndex => CodeOrigin table when we are reusing the previously used DisposableCallSiteIndex.

        * bytecode/CodeBlock.cpp:
        (JSC::CodeBlock::newExceptionHandlingCallSiteIndex):
        (JSC::CodeBlock::removeExceptionHandlerForCallSite):
        * bytecode/CodeBlock.h:
        * bytecode/PolymorphicAccess.cpp:
        (JSC::AccessGenerationState::callSiteIndexForExceptionHandling):
        (JSC::PolymorphicAccess::regenerate):
        * bytecode/PolymorphicAccess.h:
        (JSC::AccessGenerationState::callSiteIndexForExceptionHandling): Deleted.
        * dfg/DFGCommonData.cpp:
        (JSC::DFG::CommonData::addUniqueCallSiteIndex):
        (JSC::DFG::CommonData::addDisposableCallSiteIndex):
        (JSC::DFG::CommonData::removeDisposableCallSiteIndex):
        (JSC::DFG::CommonData::removeCallSiteIndex): Deleted.
        * dfg/DFGCommonData.h:
        * interpreter/CallFrame.h:
        (JSC::DisposableCallSiteIndex::DisposableCallSiteIndex):
        (JSC::DisposableCallSiteIndex::fromCallSiteIndex):
        * jit/GCAwareJITStubRoutine.cpp:
        (JSC::GCAwareJITStubRoutineWithExceptionHandler::GCAwareJITStubRoutineWithExceptionHandler):
        (JSC::GCAwareJITStubRoutineWithExceptionHandler::observeZeroRefCount):
        (JSC::createJITStubRoutine):
        * jit/GCAwareJITStubRoutine.h:
        * jit/JITInlineCacheGenerator.h:

2019-06-17  Justin Michaud  <justin_michaud@apple.com>

        [WASM-References] Add support for Funcref in parameters and return types
        https://bugs.webkit.org/show_bug.cgi?id=198157

        Reviewed by Yusuke Suzuki.

        Add support for funcref in parameters, globals, and in table.get/set. When converting a JSValue to 
        a funcref (nee anyfunc), we first make sure it is an exported wasm function or null. 

        We also add support for Ref.func. Anywhere a Ref.func is used, (statically) we construct a JS wrapper
        for it so that we never need to construct JSValues when handling references. This should make threads
        easier to implement.

        Finally, we add some missing bounds checks for table.get/set.

        * wasm/WasmAirIRGenerator.cpp:
        (JSC::Wasm::AirIRGenerator::tmpForType):
        (JSC::Wasm::AirIRGenerator::moveOpForValueType):
        (JSC::Wasm::AirIRGenerator::AirIRGenerator):
        (JSC::Wasm::AirIRGenerator::addLocal):
        (JSC::Wasm::AirIRGenerator::addConstant):
        (JSC::Wasm::AirIRGenerator::addRefFunc):
        (JSC::Wasm::AirIRGenerator::addTableSet):
        (JSC::Wasm::AirIRGenerator::setGlobal):
        (JSC::Wasm::AirIRGenerator::addReturn):
        * wasm/WasmB3IRGenerator.cpp:
        (JSC::Wasm::B3IRGenerator::addLocal):
        (JSC::Wasm::B3IRGenerator::addTableSet):
        (JSC::Wasm::B3IRGenerator::addRefFunc):
        (JSC::Wasm::B3IRGenerator::setGlobal):
        * wasm/WasmBBQPlan.cpp:
        (JSC::Wasm::BBQPlan::compileFunctions):
        * wasm/WasmCallingConvention.h:
        (JSC::Wasm::CallingConventionAir::marshallArgument const):
        (JSC::Wasm::CallingConventionAir::setupCall const):
        * wasm/WasmExceptionType.h:
        * wasm/WasmFormat.h:
        (JSC::Wasm::isValueType):
        (JSC::Wasm::isSubtype):
        * wasm/WasmFunctionParser.h:
        (JSC::Wasm::FunctionParser<Context>::parseExpression):
        (JSC::Wasm::FunctionParser<Context>::parseUnreachableExpression):
        * wasm/WasmInstance.cpp:
        (JSC::Wasm::Instance::Instance):
        (JSC::Wasm::Instance::getFunctionWrapper const):
        (JSC::Wasm::Instance::setFunctionWrapper):
        * wasm/WasmInstance.h:
        * wasm/WasmModuleInformation.h:
        (JSC::Wasm::ModuleInformation::referencedFunctions const):
        (JSC::Wasm::ModuleInformation::addReferencedFunction const):
        * wasm/WasmSectionParser.cpp:
        (JSC::Wasm::SectionParser::parseGlobal):
        (JSC::Wasm::SectionParser::parseInitExpr):
        * wasm/WasmValidate.cpp:
        (JSC::Wasm::Validate::addTableGet):
        (JSC::Wasm::Validate::addTableSet):
        (JSC::Wasm::Validate::addRefIsNull):
        (JSC::Wasm::Validate::addRefFunc):
        (JSC::Wasm::Validate::setLocal):
        (JSC::Wasm::Validate::addCall):
        (JSC::Wasm::Validate::addCallIndirect):
        * wasm/js/JSToWasm.cpp:
        (JSC::Wasm::createJSToWasmWrapper):
        * wasm/js/JSWebAssemblyHelpers.h:
        (JSC::isWebAssemblyHostFunction):
        * wasm/js/JSWebAssemblyInstance.cpp:
        (JSC::JSWebAssemblyInstance::visitChildren):
        * wasm/js/JSWebAssemblyRuntimeError.cpp:
        (JSC::createJSWebAssemblyRuntimeError):
        * wasm/js/JSWebAssemblyRuntimeError.h:
        * wasm/js/WasmToJS.cpp:
        (JSC::Wasm::handleBadI64Use):
        (JSC::Wasm::wasmToJS):
        (JSC::Wasm::emitWasmToJSException):
        * wasm/js/WasmToJS.h:
        * wasm/js/WebAssemblyFunction.cpp:
        (JSC::callWebAssemblyFunction):
        (JSC::WebAssemblyFunction::jsCallEntrypointSlow):
        * wasm/js/WebAssemblyModuleRecord.cpp:
        (JSC::WebAssemblyModuleRecord::link):
        * wasm/wasm.json:

2019-06-16  Darin Adler  <darin@apple.com>

        Rename AtomicString to AtomString
        https://bugs.webkit.org/show_bug.cgi?id=195276

        Reviewed by Michael Catanzaro.

        * many files: Let do-webcore-rename do the renaming.

2019-06-16  Yusuke Suzuki  <ysuzuki@apple.com>

        [JSC] Grown region of WasmTable should be initialized with null
        https://bugs.webkit.org/show_bug.cgi?id=198903

        Reviewed by Saam Barati.

        Grown region of Wasmtable is now empty. We should initialize it with null.
        We also rename Wasm::Table::visitChildren to Wasm::Table::visitAggregate to
        align to the naming convention.

        * wasm/WasmTable.cpp:
        (JSC::Wasm::Table::grow):
        (JSC::Wasm::Table::visitAggregate):
        (JSC::Wasm::Table::visitChildren): Deleted.
        * wasm/WasmTable.h:
        * wasm/js/JSWebAssemblyTable.cpp:
        (JSC::JSWebAssemblyTable::visitChildren):

2019-06-14  Keith Miller  <keith_miller@apple.com>

        Restore PAC based cage.
        https://bugs.webkit.org/show_bug.cgi?id=198872

        Rubber-stamped by Saam Barati.

        * assembler/MacroAssemblerARM64.h:
        (JSC::MacroAssemblerARM64::bitFieldInsert64):
        * assembler/MacroAssemblerARM64E.h:
        * assembler/testmasm.cpp:
        (JSC::testCagePreservesPACFailureBit):
        (JSC::run):
        * dfg/DFGSpeculativeJIT.cpp:
        (JSC::DFG::SpeculativeJIT::jumpForTypedArrayIsNeuteredIfOutOfBounds):
        (JSC::DFG::SpeculativeJIT::cageTypedArrayStorage):
        (JSC::DFG::SpeculativeJIT::compileGetTypedArrayByteOffset):
        (JSC::DFG::SpeculativeJIT::compileNewTypedArrayWithSize):
        * ftl/FTLLowerDFGToB3.cpp:
        (JSC::FTL::DFG::LowerDFGToB3::compileNewTypedArray):
        (JSC::FTL::DFG::LowerDFGToB3::caged):
        * jit/AssemblyHelpers.h:
        (JSC::AssemblyHelpers::cageWithoutUntagging):
        (JSC::AssemblyHelpers::cageConditionally):
        (JSC::AssemblyHelpers::cage): Deleted.
        * jit/JITPropertyAccess.cpp:
        (JSC::JIT::emitIntTypedArrayGetByVal):
        (JSC::JIT::emitFloatTypedArrayGetByVal):
        (JSC::JIT::emitIntTypedArrayPutByVal):
        (JSC::JIT::emitFloatTypedArrayPutByVal):
        * llint/LowLevelInterpreter.asm:
        * llint/LowLevelInterpreter64.asm:
        * offlineasm/arm64.rb:
        * offlineasm/instructions.rb:
        * offlineasm/registers.rb:
        * wasm/WasmAirIRGenerator.cpp:
        (JSC::Wasm::AirIRGenerator::restoreWebAssemblyGlobalState):
        (JSC::Wasm::AirIRGenerator::addCallIndirect):
        * wasm/WasmB3IRGenerator.cpp:
        (JSC::Wasm::B3IRGenerator::restoreWebAssemblyGlobalState):
        (JSC::Wasm::B3IRGenerator::addCallIndirect):
        * wasm/WasmBinding.cpp:
        (JSC::Wasm::wasmToWasm):
        * wasm/js/JSToWasm.cpp:
        (JSC::Wasm::createJSToWasmWrapper):
        * wasm/js/WebAssemblyFunction.cpp:
        (JSC::WebAssemblyFunction::jsCallEntrypointSlow):

2019-06-13  Yusuke Suzuki  <ysuzuki@apple.com>

        Yarr bytecode compilation failure should be gracefully handled
        https://bugs.webkit.org/show_bug.cgi?id=198700

        Reviewed by Michael Saboff.

        Currently, we assume that Yarr bytecode compilation does not fail. But in fact it can fail.
        We should gracefully handle this failure as a runtime error, as we did for parse errors in [1].
        We also harden Yarr's consumed character calculation by using Checked.

        [1]: https://bugs.webkit.org/show_bug.cgi?id=185755

        * inspector/ContentSearchUtilities.cpp:
        (Inspector::ContentSearchUtilities::findMagicComment):
        * runtime/RegExp.cpp:
        (JSC::RegExp::byteCodeCompileIfNecessary):
        (JSC::RegExp::compile):
        (JSC::RegExp::compileMatchOnly):
        * runtime/RegExpInlines.h:
        (JSC::RegExp::matchInline):
        * yarr/YarrErrorCode.cpp:
        (JSC::Yarr::errorMessage):
        (JSC::Yarr::errorToThrow):
        * yarr/YarrErrorCode.h:
        * yarr/YarrInterpreter.cpp:
        (JSC::Yarr::ByteCompiler::ByteCompiler):
        (JSC::Yarr::ByteCompiler::compile):
        (JSC::Yarr::ByteCompiler::atomCharacterClass):
        (JSC::Yarr::ByteCompiler::atomBackReference):
        (JSC::Yarr::ByteCompiler::atomParenthesesOnceBegin):
        (JSC::Yarr::ByteCompiler::atomParenthesesTerminalBegin):
        (JSC::Yarr::ByteCompiler::atomParenthesesSubpatternBegin):
        (JSC::Yarr::ByteCompiler::atomParentheticalAssertionBegin):
        (JSC::Yarr::ByteCompiler::popParenthesesStack):
        (JSC::Yarr::ByteCompiler::closeAlternative):
        (JSC::Yarr::ByteCompiler::closeBodyAlternative):
        (JSC::Yarr::ByteCompiler::alternativeBodyDisjunction):
        (JSC::Yarr::ByteCompiler::alternativeDisjunction):
        (JSC::Yarr::ByteCompiler::emitDisjunction):

2019-06-12  Yusuke Suzuki  <ysuzuki@apple.com>

        [JSC] Polymorphic call stub's slow path should restore callee saves before performing tail call
        https://bugs.webkit.org/show_bug.cgi?id=198770

        Reviewed by Saam Barati.

        Polymorphic call stub is a bit specially patched in JS call site. Typical JS call site for tail calls
        are the following.

            if (callee == patchableCallee) {
                restore callee saves for tail call
                prepare for tail call
                jump to the target function
            }
            restore callee saves for slow path
            call the slow path function

        And linking patches patchableCallee, target function, and slow path function. But polymorphic call stub
        patches the above `if` statement with the jump to the stub.

            jump to the polymorphic call stub

        This is because polymorphic call stub wants to use CallFrameShuffler to get scratch registers. As a result,
        "restore callee saves for tail call" thing needs to be done in the polymorphic call stubs. While it is
        correctly done for the major cases, we have `slowPath` skips, and that path missed restoring callee saves.
        This skip happens if the callee is non JSCell or non JS function, so typically, InternalFunction is handled
        in that path.

        This patch does that skips after restoring callee saves.

        * bytecode/CallLinkInfo.cpp:
        (JSC::CallLinkInfo::CallLinkInfo):
        * bytecode/CallLinkInfo.h:
        (JSC::CallLinkInfo::setUpCall):
        (JSC::CallLinkInfo::calleeGPR):
        (JSC::CallLinkInfo::setCalleeGPR): Deleted.
        * jit/Repatch.cpp:
        (JSC::revertCall):
        (JSC::linkVirtualFor):
        (JSC::linkPolymorphicCall):
        * jit/Repatch.h:
        * jit/ThunkGenerators.cpp:
        (JSC::virtualThunkFor):

2019-06-12  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r246322.
        https://bugs.webkit.org/show_bug.cgi?id=198796

        "It's a huge page load regression on iOS" (Requested by
        saamyjoon on #webkit).

        Reverted changeset:

        "Roll out PAC cage"
        https://bugs.webkit.org/show_bug.cgi?id=198726
        https://trac.webkit.org/changeset/246322

2019-06-11  Alexey Shvayka  <shvaikalesh@gmail.com>

        JSC should throw if proxy set returns falsish in strict mode context
        https://bugs.webkit.org/show_bug.cgi?id=177398

        Reviewed by Yusuke Suzuki.

        Throw TypeError exception if Proxy's `set` trap returns falsy value.
        (step 6.c of https://tc39.es/ecma262/#sec-putvalue)

        * runtime/ProxyObject.cpp:
        (JSC::ProxyObject::performPut):
        (JSC::ProxyObject::put):
        (JSC::ProxyObject::putByIndexCommon):
        * runtime/ProxyObject.h:

2019-06-11  Alexey Shvayka  <shvaikalesh@gmail.com>

        Error message for non-callable Proxy `construct` trap is misleading
        https://bugs.webkit.org/show_bug.cgi?id=198637

        Reviewed by Saam Barati.

        Just like other traps, Proxy `construct` trap is invoked with [[Call]], not [[Construct]].

        * runtime/ProxyObject.cpp:
        (JSC::performProxyConstruct): Tweak error message.

2019-06-10  Tadeu Zagallo  <tzagallo@apple.com>

        AI BitURShift's result should not be unsigned
        https://bugs.webkit.org/show_bug.cgi?id=198689
        <rdar://problem/51550063>

        Reviewed by Saam Barati.

        Treating BitURShift's result as unsigned in the abstract interpreter incorrectly overflows it.
        This breaks the DFG and FTL, since they assume that BitURShift's result is an int32 value, but
        get a double constant from AI. Since the result will be converted to unsigned by UInt32ToNumber,
        all we have to do is store the result as a signed int32.

        * dfg/DFGAbstractInterpreterInlines.h:

2019-06-11  Michael Catanzaro  <mcatanzaro@igalia.com>

        Unreviewed build warning fixes

        Silence -Wreturn-type warning

        * wasm/WasmTable.cpp:
        (JSC::Wasm::Table::tryCreate):

2019-06-11  Saam Barati  <sbarati@apple.com>

        Roll out PAC cage
        https://bugs.webkit.org/show_bug.cgi?id=198726

        Reviewed by Keith Miller.

        This patch rolls out: r245064, r245145, r245168, r245313, r245432, r245622.
        
        The resulting state we're in is we have Gigacage enabled on arm64.
        There is no more PAC caging.

        We're doing this because there are performance issues with PAC caging
        that we haven't resolved yet.

        * assembler/CPU.h:
        (JSC::isARM64E): Deleted.
        * assembler/MacroAssemblerARM64E.h:
        (JSC::MacroAssemblerARM64E::tagArrayPtr): Deleted.
        (JSC::MacroAssemblerARM64E::untagArrayPtr): Deleted.
        (JSC::MacroAssemblerARM64E::removeArrayPtrTag): Deleted.
        * b3/B3LowerToAir.cpp:
        * b3/B3PatchpointSpecial.cpp:
        (JSC::B3::PatchpointSpecial::admitsStack):
        * b3/B3StackmapSpecial.cpp:
        (JSC::B3::StackmapSpecial::forEachArgImpl):
        (JSC::B3::StackmapSpecial::isArgValidForRep):
        * b3/B3Validate.cpp:
        * b3/B3ValueRep.cpp:
        (JSC::B3::ValueRep::addUsedRegistersTo const):
        (JSC::B3::ValueRep::dump const):
        (WTF::printInternal):
        * b3/B3ValueRep.h:
        (JSC::B3::ValueRep::ValueRep):
        (JSC::B3::ValueRep::isReg const):
        * dfg/DFGOperations.cpp:
        (JSC::DFG::newTypedArrayWithSize):
        * dfg/DFGSpeculativeJIT.cpp:
        (JSC::DFG::SpeculativeJIT::jumpForTypedArrayIsNeuteredIfOutOfBounds):
        (JSC::DFG::SpeculativeJIT::cageTypedArrayStorage):
        (JSC::DFG::SpeculativeJIT::compileGetIndexedPropertyStorage):
        (JSC::DFG::SpeculativeJIT::compileGetTypedArrayByteOffset):
        (JSC::DFG::SpeculativeJIT::compileNewTypedArrayWithSize):
        * dfg/DFGSpeculativeJIT.h:
        * dfg/DFGSpeculativeJIT64.cpp:
        (JSC::DFG::SpeculativeJIT::compile):
        * ftl/FTLLowerDFGToB3.cpp:
        (JSC::FTL::DFG::LowerDFGToB3::compileGetIndexedPropertyStorage):
        (JSC::FTL::DFG::LowerDFGToB3::compileGetTypedArrayByteOffset):
        (JSC::FTL::DFG::LowerDFGToB3::compileNewTypedArray):
        (JSC::FTL::DFG::LowerDFGToB3::compileDataViewGet):
        (JSC::FTL::DFG::LowerDFGToB3::compileDataViewSet):
        (JSC::FTL::DFG::LowerDFGToB3::caged):
        (JSC::FTL::DFG::LowerDFGToB3::speculateTypedArrayIsNotNeutered):
        (JSC::FTL::DFG::LowerDFGToB3::untagArrayPtr): Deleted.
        (JSC::FTL::DFG::LowerDFGToB3::removeArrayPtrTag): Deleted.
        * heap/ConservativeRoots.cpp:
        (JSC::ConservativeRoots::genericAddPointer):
        * jit/AssemblyHelpers.h:
        (JSC::AssemblyHelpers::cageConditionally):
        * jit/IntrinsicEmitter.cpp:
        (JSC::IntrinsicGetterAccessCase::emitIntrinsicGetter):
        * jit/JITPropertyAccess.cpp:
        (JSC::JIT::emitDirectArgumentsGetByVal):
        (JSC::JIT::emitIntTypedArrayGetByVal):
        (JSC::JIT::emitFloatTypedArrayGetByVal):
        (JSC::JIT::emitIntTypedArrayPutByVal):
        (JSC::JIT::emitFloatTypedArrayPutByVal):
        * jit/PolymorphicCallStubRoutine.cpp:
        (JSC::PolymorphicCallNode::clearCallLinkInfo):
        * jit/RegisterSet.h:
        * llint/LowLevelInterpreter64.asm:
        * runtime/ArrayBuffer.cpp:
        (JSC::SharedArrayBufferContents::SharedArrayBufferContents):
        (JSC::SharedArrayBufferContents::~SharedArrayBufferContents):
        (JSC::ArrayBufferContents::ArrayBufferContents):
        (JSC::ArrayBufferContents::destroy):
        (JSC::ArrayBufferContents::tryAllocate):
        (JSC::ArrayBufferContents::makeShared):
        (JSC::ArrayBufferContents::copyTo):
        * runtime/ArrayBuffer.h:
        (JSC::SharedArrayBufferContents::data const):
        (JSC::ArrayBufferContents::data const):
        (JSC::ArrayBuffer::data):
        (JSC::ArrayBuffer::data const):
        (JSC::ArrayBuffer::byteLength const):
        * runtime/ArrayBufferView.cpp:
        (JSC::ArrayBufferView::ArrayBufferView):
        * runtime/ArrayBufferView.h:
        (JSC::ArrayBufferView::baseAddress const):
        (JSC::ArrayBufferView::setRangeImpl):
        (JSC::ArrayBufferView::getRangeImpl):
        (JSC::ArrayBufferView::byteLength const): Deleted.
        * runtime/CachedTypes.cpp:
        (JSC::CachedScopedArgumentsTable::encode):
        (JSC::CachedScopedArgumentsTable::decode const):
        * runtime/CagedBarrierPtr.h:
        (JSC::CagedBarrierPtr::CagedBarrierPtr):
        (JSC::CagedBarrierPtr::set):
        (JSC::CagedBarrierPtr::get const):
        (JSC::CagedBarrierPtr::getMayBeNull const):
        (JSC::CagedBarrierPtr::operator== const):
        (JSC::CagedBarrierPtr::operator!= const):
        (JSC::CagedBarrierPtr::operator bool const):
        (JSC::CagedBarrierPtr::setWithoutBarrier):
        (JSC::CagedBarrierPtr::operator* const):
        (JSC::CagedBarrierPtr::operator-> const):
        (JSC::CagedBarrierPtr::operator[] const):
        (JSC::CagedBarrierPtr::getUnsafe const): Deleted.
        (JSC::CagedBarrierPtr::at const): Deleted.
        * runtime/DataView.cpp:
        (JSC::DataView::DataView):
        * runtime/DataView.h:
        (JSC::DataView::get):
        (JSC::DataView::set):
        * runtime/DirectArguments.cpp:
        (JSC::DirectArguments::visitChildren):
        (JSC::DirectArguments::overrideThings):
        (JSC::DirectArguments::unmapArgument):
        * runtime/DirectArguments.h:
        * runtime/GenericArguments.h:
        * runtime/GenericArgumentsInlines.h:
        (JSC::GenericArguments<Type>::visitChildren):
        (JSC::GenericArguments<Type>::initModifiedArgumentsDescriptor):
        (JSC::GenericArguments<Type>::setModifiedArgumentDescriptor):
        (JSC::GenericArguments<Type>::isModifiedArgumentDescriptor):
        * runtime/GenericTypedArrayView.h:
        * runtime/GenericTypedArrayViewInlines.h:
        (JSC::GenericTypedArrayView<Adaptor>::GenericTypedArrayView):
        * runtime/JSArrayBufferView.cpp:
        (JSC::JSArrayBufferView::ConstructionContext::ConstructionContext):
        (JSC::JSArrayBufferView::JSArrayBufferView):
        (JSC::JSArrayBufferView::finalize):
        (JSC::JSArrayBufferView::slowDownAndWasteMemory):
        * runtime/JSArrayBufferView.h:
        (JSC::JSArrayBufferView::ConstructionContext::vector const):
        (JSC::JSArrayBufferView::isNeutered):
        (JSC::JSArrayBufferView::vector const):
        (JSC::JSArrayBufferView::hasVector const): Deleted.
        * runtime/JSGenericTypedArrayViewInlines.h:
        (JSC::JSGenericTypedArrayView<Adaptor>::createUninitialized):
        (JSC::JSGenericTypedArrayView<Adaptor>::estimatedSize):
        (JSC::JSGenericTypedArrayView<Adaptor>::visitChildren):
        * runtime/Options.h:
        * runtime/ScopedArgumentsTable.cpp:
        (JSC::ScopedArgumentsTable::clone):
        (JSC::ScopedArgumentsTable::setLength):
        * runtime/ScopedArgumentsTable.h:
        * runtime/SymbolTable.h:
        * wasm/WasmAirIRGenerator.cpp:
        (JSC::Wasm::AirIRGenerator::restoreWebAssemblyGlobalState):
        (JSC::Wasm::AirIRGenerator::addCallIndirect):
        * wasm/WasmB3IRGenerator.cpp:
        (JSC::Wasm::B3IRGenerator::restoreWebAssemblyGlobalState):
        (JSC::Wasm::B3IRGenerator::addCallIndirect):
        * wasm/WasmBBQPlan.cpp:
        (JSC::Wasm::BBQPlan::complete):
        * wasm/WasmBinding.cpp:
        (JSC::Wasm::wasmToWasm):
        * wasm/WasmInstance.h:
        (JSC::Wasm::Instance::cachedMemory const):
        (JSC::Wasm::Instance::updateCachedMemory):
        * wasm/WasmMemory.cpp:
        (JSC::Wasm::Memory::Memory):
        (JSC::Wasm::Memory::~Memory):
        (JSC::Wasm::Memory::grow):
        (JSC::Wasm::Memory::dump const):
        * wasm/WasmMemory.h:
        (JSC::Wasm::Memory::memory const):
        * wasm/js/JSToWasm.cpp:
        (JSC::Wasm::createJSToWasmWrapper):
        * wasm/js/WebAssemblyFunction.cpp:
        (JSC::WebAssemblyFunction::jsCallEntrypointSlow):

2019-06-10  Basuke Suzuki  <Basuke.Suzuki@sony.com>

        [WinCairo] Remove build warning from RemoteInspector.
        https://bugs.webkit.org/show_bug.cgi?id=198724

        Reviewed by Joseph Pecoraro.

        In `RemoteInspectorConnectionClient.h`, an interface was defined with empty implementation.
        This method is to be overwritten by sub classes so that parameter name is important
        so they are commented out rather than just removing from the definition.

        * inspector/remote/RemoteInspector.h:

2019-06-10  Sam Weinig  <weinig@apple.com>

        Remove Dashboard support
        https://bugs.webkit.org/show_bug.cgi?id=198615

        Reviewed by Ryosuke Niwa.

        * Configurations/FeatureDefines.xcconfig:

2019-06-10  Devin Rousso  <drousso@apple.com>

        Web Automation: add notifications for when remote automation is enabled/disabled
        https://bugs.webkit.org/show_bug.cgi?id=198703
        <rdar://problem/50588975>

        Reviewed by Timothy Hatcher.

        * inspector/remote/RemoteInspectorConstants.h:

2019-06-10  Yusuke Suzuki  <ysuzuki@apple.com>

        Unreviewed, build fix for non-DFG configurations, part 2
        https://bugs.webkit.org/show_bug.cgi?id=198023

        * bytecode/CodeBlock.cpp:
        (JSC::CodeBlock::finalizeUnconditionally):

2019-06-10  Yusuke Suzuki  <ysuzuki@apple.com>

        Unreviewed, build fix for non-DFG configurations
        https://bugs.webkit.org/show_bug.cgi?id=198023

        * bytecode/CodeBlock.cpp:
        (JSC::CodeBlock::finalizeUnconditionally):

2019-06-10  Yusuke Suzuki  <ysuzuki@apple.com>

        [JSC] UnlinkedCodeBlock should be eventually jettisoned in VM mini mode
        https://bugs.webkit.org/show_bug.cgi?id=198023

        Reviewed by Saam Barati.

        While CodeBlock is periodically jettisoned, UnlinkedCodeBlock and UnlinkedFunctionExecutable can be retained almost forever in certain type of applications.
        When we execute a program, which has UnlinkedProgramCodeBlock retained in CodeCache. And UnlinkedProgramCodeBlock holds array of UnlinkedFunctionExecutable.
        And UnlinkedFunctionExecutables hold UnlinkedFunctionCodeBlocks once it is generated. So eventually, this tree gets larger and larger until we purge
        UnlinkedProgramCodeBlock from CodeCache. This is OK in the browser case. We navigate to various other pages, and UnlinkedProgramCodeBlocks should eventually
        be pruned from CodeCache with the new ones. So this tree won't be retained forever. But the behavior is different in the other applications that do not have
        navigations. If they only have one program which holds all, we basically retain this tree during executing this application. The same thing can happen in
        web applications which does not have navigation and keeps alive for a long time. Once we hit CodeCache limit by periodically executing a new script, we will
        hit the uppermost of memory footprint. But until that, we increase our memory footprint.

        However, destroying these UnlinkedCodeBlocks and UnlinkedFunctionExecutables causes a tricky problem. In the browser environment, navigation can happen at any
        time. So even if the given UnlinkedCodeBlock seems unused in the current page, it can be used when navigating to a new page which is under the same domain.
        One example is initializing function in a script. It is only executed once per page. So once it is executed, it seems that this UnlinkedCodeBlock is unused.
        But this will be used when we navigate to a new page. Pruning code blocks based on usage could cause performance regression.

        But if our VM is mini VM mode, the story is different. In mini VM mode, we focus on memory footprint rather than performance e.g. daemons. The daemon never
        reuse these CodeCache since we do not have the navigation.

        This patch logically makes UnlinkedFunctionExecutable -> UnlinkedCodeBlock reference weak when VM is mini mode. If UnlinkedCodeBlock is used in previous GC
        cycle, we retain it. But if it is not used, and if UnlinkedFunctionExecutable is only the cell keeping UnlinkedCodeBlock alive, we destroy it. It is a
        heuristic. In a super pathological case, it could increase memory footprint. Consider the following example.

            UnlinkedFunctionExecutable(A1) -> UnlinkedCodeBlock(B1) -> UnlinkedFunctionExecutable(C1) -> UnlinkedCodeBlock(D1)
                                                                                                             ^
                                                                                                         CodeBlock(E1)

        We could delete A1, B1, and C1 while keeping D1. But if we eventually re-execute the same code corresponding to A1, B1, C1, they will be newly created, and
        we will create duplicate UnlinkedCodeBlock and instructions stream for D1.

                                                                                                         UnlinkedCodeBlock(D1)
                                                                                                             ^
                                                                                                         CodeBlock(E1)

            UnlinkedFunctionExecutable(A2) -> UnlinkedCodeBlock(B2) -> UnlinkedFunctionExecutable(C2) -> UnlinkedCodeBlock(D2)

        But this does not happen in practice and even it happens, we eventually discard D1 and D2 since CodeBlock E1 will be jettisoned anyway. So in practice, we do
        not see memory footprint increase. We tested it in Gmail and the target application, but both said memory footprint reduction (30 MB / 400 MB and 1 MB /6 MB).
        While this affects on performance much on tests which has navigation (1-3 % regression in Speedometer2, note that JetStream2 does not show regression in x64,
        while it is not enabling mini mode), we do not apply this to non mini mode VM until we come up with a good strategy to fasten performance of re-generation.
        Personally I think flushing destroyed UnlinkedCodeBlock to the disk sounds promising.

        If UnlinkedCodeBlock is generated from bytecode cache, we do not make UnlinkedFunctionExecutable -> UnlinkedCodeBlock link weak because the decoder of the bytecode
        cache assumes that generated JSCells won't be destroyed while the parent cells of that cell are live. This is true in the current implementation, and this assumption
        will be broken with this patch. So, for now, we do not make this link weak. Currently, our target application does not use bytecode cache so it is OK.

        This patch also introduce simple heuristic. We are counting UnlinkedCodeBlock's age. And once the age becomes maximum size, we make UnlinkedFunctionExecutable ->
        UnlinkedCodeBlock link weak. We also use execution counter information to reset this age: CodeBlock will reset undelying UnlinkedCodeBlock's age if it has executed
        While this heuristic is quite simple, it has some effect in practice. Basically what happens with this heuristic is that UnlinkedFunctionExecutable ->
        UnlinkedCodeBlock link strong. When GC happens, we are executing some CodeBlocks, which become live. And ScriptExecutables -> UnlinkedFunctionExecutables held
        by this CodeBlock become also live. Then UnlinkedFunctionExecutables can mark the child UnlinkedCodeBlocks if it is not so old.
        If some of parent UnlinkedFunctionExecutable becomes dead, child UnlinkedCodeBlocks tends to be dead unless some live CodeBlock holds it. But it is OK for a first
        heuristics since this means that parent code block is now considered old, reachable UnlinkedCodeBlock will be used when the parent is executed again. So destroying
        the tree is OK even if the tree may include some new UnlinkedCodeBlock. While we could make more sophisticated mechanism to manage these lifetime, I think this is a
        good starting point.

        Based on measurement, we pick 7 as a maximum age. If we pick 0, we can get more memory reduction (1 - 1.5 MB!), while we ends up reparsing codes so many times.
        It seems that 7 can reduce fair amount of memory while doing small # of reparsing on average (usually, 1, 2. Sometimes, 100. But not 300, which is the case in 0).
        If we want to get more memory reduction for the sake of performance, we could decrease this age limit.

        Since we do not have an automated script right now so it is a bit difficult to measure memory footprint precisely. But manual testing shows that this patch improves
        memory footprint of our target application from about 6.5 MB to about 5.9 MB.

        * bytecode/CodeBlock.cpp:
        (JSC::CodeBlock::finalizeUnconditionally):
        * bytecode/CodeBlock.h:
        * bytecode/UnlinkedCodeBlock.cpp:
        (JSC::UnlinkedCodeBlock::UnlinkedCodeBlock):
        (JSC::UnlinkedCodeBlock::visitChildren):
        * bytecode/UnlinkedCodeBlock.h:
        (JSC::UnlinkedCodeBlock::age const):
        (JSC::UnlinkedCodeBlock::resetAge):
        * bytecode/UnlinkedFunctionExecutable.cpp:
        (JSC::UnlinkedFunctionExecutable::UnlinkedFunctionExecutable):
        (JSC::UnlinkedFunctionExecutable::visitChildren):
        (JSC::UnlinkedFunctionExecutable::unlinkedCodeBlockFor):
        (JSC::UnlinkedFunctionExecutable::decodeCachedCodeBlocks):
        (JSC::UnlinkedFunctionExecutable::finalizeUnconditionally):
        * bytecode/UnlinkedFunctionExecutable.h:
        * heap/Heap.cpp:
        (JSC::Heap::finalizeUnconditionalFinalizers):
        * runtime/CachedTypes.cpp:
        (JSC::UnlinkedCodeBlock::UnlinkedCodeBlock):
        (JSC::UnlinkedFunctionExecutable::UnlinkedFunctionExecutable):
        * runtime/CodeSpecializationKind.h:
        * runtime/Options.h:
        * runtime/VM.cpp:
        (JSC::VM::isInMiniMode): Deleted.
        * runtime/VM.h:
        (JSC::VM::isInMiniMode):
        (JSC::VM::useUnlinkedCodeBlockJettisoning):

2019-06-10  Timothy Hatcher  <timothy@apple.com>

        Integrate dark mode support for iOS.
        https://bugs.webkit.org/show_bug.cgi?id=198687
        rdar://problem/51545643

        Reviewed by Tim Horton.

        * Configurations/FeatureDefines.xcconfig:

2019-06-10  Adrian Perez de Castro  <aperez@igalia.com>

        [JSC] Linker fails when unified sources are not in use
        https://bugs.webkit.org/show_bug.cgi?id=198722

        Reviewed by Keith Miller.

        Added missing inclusions of headers in several files which make use of inline functions.

        * b3/B3AtomicValue.cpp:
        * b3/B3BlockInsertionSet.cpp:
        * b3/B3FenceValue.cpp:
        * b3/B3LowerMacrosAfterOptimizations.cpp:
        * b3/B3PureCSE.cpp:
        * b3/B3StackmapValue.cpp:
        * b3/B3SwitchValue.cpp:
        * b3/B3UseCounts.cpp:
        * b3/B3VariableValue.cpp:
        * b3/B3WasmAddressValue.cpp:
        * b3/B3WasmBoundsCheckValue.cpp:
        * ftl/FTLCompile.cpp:
        * wasm/WasmSectionParser.cpp:
        * wasm/WasmTable.cpp:
        * wasm/WasmValidate.cpp:

2019-06-10  Keith Miller  <keith_miller@apple.com>

        Make new Symbol/Promise API public
        https://bugs.webkit.org/show_bug.cgi?id=198709

        Reviewed by Saam Barati.

        We also need to #ifdef some tests when building for older
        platforms because the signatures for some methods are outdated on
        those platforms.

        * API/JSObjectRef.h:
        * API/JSObjectRefPrivate.h:
        * API/JSValue.h:
        * API/JSValuePrivate.h:
        * API/JSValueRef.h:
        * API/tests/testapi.mm:
        (testObjectiveCAPIMain):

2019-06-09  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r246150, r246160, and r246166.
        https://bugs.webkit.org/show_bug.cgi?id=198698

        Regresses page loading time on iOS 13 (Requested by keith_m__
        on #webkit).

        Reverted changesets:

        "Reenable Gigacage on ARM64."
        https://bugs.webkit.org/show_bug.cgi?id=198453
        https://trac.webkit.org/changeset/246150

        "Unrevied build fix for FTL without Gigacage."
        https://trac.webkit.org/changeset/246160

        "Fix typo in cageWithoutUntagging"
        https://bugs.webkit.org/show_bug.cgi?id=198617
        https://trac.webkit.org/changeset/246166

2019-06-09  Yusuke Suzuki  <ysuzuki@apple.com>

        [JSC] Use mergePrediction in ValuePow prediction propagation
        https://bugs.webkit.org/show_bug.cgi?id=198648

        Reviewed by Saam Barati.

        We are accidentally using setPrediction. This is wrong since prediction propagation (not processInvariant)
        must extend the speculation types to ensure we eventually reach to the fixed point. setPrediction can discard
        previously configured predictions, can lead to oscillation potentially. Use mergePrediction instead.

        * dfg/DFGPredictionPropagationPhase.cpp:

2019-06-07  Tadeu Zagallo  <tzagallo@apple.com>

        AI should get GetterSetter structure from the base's GlobalObject for GetGetterSetterByOffset
        https://bugs.webkit.org/show_bug.cgi?id=198581
        <rdar://problem/51099753>

        Reviewed by Saam Barati.

        For GetGetterSetterByOffset, when the abstract interpreter fails to read the property
        from the object, it gets the GetterSetter structure from the CodeBlock's global object.
        However, that's not correct, since the global object for the base object might differ
        from the CodeBlock's. Instead, we try to get the global object from the base, when it's
        a constant object. Otherwise, we can't infer the value and only set the type.

        * dfg/DFGAbstractInterpreterInlines.h:
        (JSC::DFG::AbstractInterpreter<AbstractStateType>::executeEffects):

2019-06-06  Devin Rousso  <drousso@apple.com>

        Web Inspector: create CommandLineAPIHost lazily like the other agents
        https://bugs.webkit.org/show_bug.cgi?id=196047
        <rdar://problem/49087835>

        Reviewed by Timothy Hatcher.

        * inspector/InjectedScriptManager.h:
        * inspector/InjectedScriptManager.cpp:
        (Inspector::InjectedScriptManager::connect): Added.

2019-06-06  Keith Miller  <keith_miller@apple.com>

        Fix typo in cageWithoutUntagging
        https://bugs.webkit.org/show_bug.cgi?id=198617

        Reviewed by Saam Barati.

        * assembler/testmasm.cpp:
        (JSC::testCagePreservesPACFailureBit):
        * dfg/DFGSpeculativeJIT.cpp:
        (JSC::DFG::SpeculativeJIT::cageTypedArrayStorage):
        (JSC::DFG::SpeculativeJIT::compileGetTypedArrayByteOffset):
        * jit/AssemblyHelpers.h:
        (JSC::AssemblyHelpers::cageWithoutUntagging):
        (JSC::AssemblyHelpers::cageConditionally):
        (JSC::AssemblyHelpers::cageWithoutUntaging): Deleted.

2019-06-06  Alexey Shvayka  <shvaikalesh@gmail.com>

        JSON.parse throws incorrect exception when called w/o arguments
        https://bugs.webkit.org/show_bug.cgi?id=198574

        Reviewed by Yusuke Suzuki.

        Always coerce first argument to string and attempt to parse it.
        (steps 1-2 of https://tc39.github.io/ecma262/#sec-json.parse)

        * runtime/JSONObject.cpp:
        (JSC::JSONProtoFuncParse): Remove argumentCount check.

2019-06-06  Keith Miller  <keith_miller@apple.com>

        Unrevied build fix for FTL without Gigacage.

        * ftl/FTLLowerDFGToB3.cpp:
        (JSC::FTL::DFG::LowerDFGToB3::caged):

2019-06-06  Michael Catanzaro  <mcatanzaro@igalia.com>

        aarch64: ‘JSC::ARM64Assembler::LinkRecord::<unnamed union>::RealTypes::m_compareRegister’ is too small to hold all values of ‘JSC::ARM64Assembler::RegisterID’ {aka ‘enum JSC::ARM64Registers::RegisterID’}
        https://bugs.webkit.org/show_bug.cgi?id=198014

        Reviewed by Yusuke Suzuki.

        When building for aarch64, there is a huge warning spam here. It's impossible to see any
        other warnings. This has been ongoing for so long I've begun to suspect that nobody works
        on this architecture.

        Anyway, the problem is because we need eight bits to store all possible RegisterID values,
        but the bitfield is only six bits wide. Fix it. The COMPILE_ASSERT checking the size of this
        struct is still happy, so I presume the change is OK.

        * assembler/ARM64Assembler.h:

2019-06-06  Keith Miller  <keith_miller@apple.com>

        Reenable Gigacage on ARM64.
        https://bugs.webkit.org/show_bug.cgi?id=198453

        Reviewed by Michael Saboff.

        This patch adds back Gigacaging on Apple's ARM64 ports. Unlike the
        old Gigacage however, arm64e uses both Gigacaging and PAC. In
        order to ensure the PAC bits are not stripped in the caging
        process we use the bit field insert instruction to take the low
        bits from caging and the high bits from the PAC authentication.

        * assembler/MacroAssemblerARM64.h:
        (JSC::MacroAssemblerARM64::bitFieldInsert64):
        * assembler/MacroAssemblerARM64E.h:
        * assembler/testmasm.cpp:
        (JSC::testCagePreservesPACFailureBit):
        (JSC::run):
        * dfg/DFGSpeculativeJIT.cpp:
        (JSC::DFG::SpeculativeJIT::jumpForTypedArrayIsNeuteredIfOutOfBounds):
        (JSC::DFG::SpeculativeJIT::cageTypedArrayStorage):
        (JSC::DFG::SpeculativeJIT::compileGetTypedArrayByteOffset):
        (JSC::DFG::SpeculativeJIT::compileNewTypedArrayWithSize):
        * ftl/FTLLowerDFGToB3.cpp:
        (JSC::FTL::DFG::LowerDFGToB3::compileNewTypedArray):
        (JSC::FTL::DFG::LowerDFGToB3::caged):
        * jit/AssemblyHelpers.h:
        (JSC::AssemblyHelpers::cageWithoutUntaging):
        (JSC::AssemblyHelpers::cageConditionally):
        (JSC::AssemblyHelpers::cage): Deleted.
        * jit/JITPropertyAccess.cpp:
        (JSC::JIT::emitIntTypedArrayGetByVal):
        (JSC::JIT::emitFloatTypedArrayGetByVal):
        (JSC::JIT::emitIntTypedArrayPutByVal):
        (JSC::JIT::emitFloatTypedArrayPutByVal):
        * llint/LowLevelInterpreter.asm:
        * llint/LowLevelInterpreter64.asm:
        * offlineasm/arm64.rb:
        * offlineasm/instructions.rb:
        * offlineasm/registers.rb:
        * wasm/WasmAirIRGenerator.cpp:
        (JSC::Wasm::AirIRGenerator::restoreWebAssemblyGlobalState):
        (JSC::Wasm::AirIRGenerator::addCallIndirect):
        * wasm/WasmB3IRGenerator.cpp:
        (JSC::Wasm::B3IRGenerator::restoreWebAssemblyGlobalState):
        (JSC::Wasm::B3IRGenerator::addCallIndirect):
        * wasm/WasmBinding.cpp:
        (JSC::Wasm::wasmToWasm):
        * wasm/js/JSToWasm.cpp:
        (JSC::Wasm::createJSToWasmWrapper):
        * wasm/js/WebAssemblyFunction.cpp:
        (JSC::WebAssemblyFunction::jsCallEntrypointSlow):

2019-06-06  Michael Saboff  <msaboff@apple.com>

        [ARM64E]: Add disassembler support for authenticated instructions
        https://bugs.webkit.org/show_bug.cgi?id=198562

        Reviewed by Keith Miller.

        Added support for all the instructions supported in ARM64EAssembler.h.

        * disassembler/ARM64/A64DOpcode.cpp:
        (JSC::ARM64Disassembler::A64DOpcodeDataProcessing1Source::format):
        (JSC::ARM64Disassembler::A64DOpcodeDataProcessing2Source::format):
        (JSC::ARM64Disassembler::A64DOpcodeHint::format):
        (JSC::ARM64Disassembler::A64DOpcodeHint::opName):
        (JSC::ARM64Disassembler::A64DOpcodeLoadStoreAuthenticated::format):
        (JSC::ARM64Disassembler::A64DOpcodeUnconditionalBranchRegister::authOpName):
        (JSC::ARM64Disassembler::A64DOpcodeUnconditionalBranchRegister::format):
        * disassembler/ARM64/A64DOpcode.h:
        (JSC::ARM64Disassembler::A64DOpcodeDataProcessing2Source::opNameIndex):
        (JSC::ARM64Disassembler::A64DOpcodeLoadStoreAuthenticated::opName):
        (JSC::ARM64Disassembler::A64DOpcodeLoadStoreAuthenticated::opNum):
        (JSC::ARM64Disassembler::A64DOpcodeLoadStoreAuthenticated::mBit):
        (JSC::ARM64Disassembler::A64DOpcodeLoadStoreAuthenticated::sBit):
        (JSC::ARM64Disassembler::A64DOpcodeLoadStoreAuthenticated::wBit):
        (JSC::ARM64Disassembler::A64DOpcodeLoadStoreAuthenticated::immediate10):
        (JSC::ARM64Disassembler::A64DOpcodeUnconditionalBranchRegister::authOpCode):
        (JSC::ARM64Disassembler::A64DOpcodeUnconditionalBranchRegister::op2):
        (JSC::ARM64Disassembler::A64DOpcodeUnconditionalBranchRegister::op3):
        (JSC::ARM64Disassembler::A64DOpcodeUnconditionalBranchRegister::op4):
        (JSC::ARM64Disassembler::A64DOpcodeUnconditionalBranchRegister::mBit):
        (JSC::ARM64Disassembler::A64DOpcodeUnconditionalBranchRegister::rm):
        (JSC::ARM64Disassembler::A64DOpcodeHint::opName): Deleted.

2019-06-05  Justin Michaud  <justin_michaud@apple.com>

        [WASM-References] Add support for Anyref tables, Table.get and Table.set (for Anyref only).
        https://bugs.webkit.org/show_bug.cgi?id=198398

        Reviewed by Saam Barati.

        Create a new table subtype called FuncRefTable (note: Anyfunc was renamed to Funcref in the references spec).
        Table now write-barriers and visits its children's wrapper objects. FuncRefTable caches some extra data to
        support calling from wasm. A JSWebAssemblyTable is required to set an anyref element, but this is only because
        we need to write barrier it (so it should not restrict how we implement threads). This patch does, however,
        restrict the implementation of function references to require every Ref.func to have an associated wrapper. This
        can be done statically, so this too should not restrict our threads implementation. 

        * wasm/WasmAirIRGenerator.cpp:
        (JSC::Wasm::AirIRGenerator::addTableGet):
        (JSC::Wasm::AirIRGenerator::addTableSet):
        (JSC::Wasm::AirIRGenerator::addCallIndirect):
        * wasm/WasmB3IRGenerator.cpp:
        (JSC::Wasm::B3IRGenerator::addLocal):
        (JSC::Wasm::B3IRGenerator::addTableGet):
        (JSC::Wasm::B3IRGenerator::addTableSet):
        (JSC::Wasm::B3IRGenerator::addCallIndirect):
        * wasm/WasmFormat.h:
        (JSC::Wasm::TableInformation::TableInformation):
        (JSC::Wasm::TableInformation::type const):
        * wasm/WasmFunctionParser.h:
        (JSC::Wasm::FunctionParser<Context>::parseExpression):
        (JSC::Wasm::FunctionParser<Context>::parseUnreachableExpression):
        * wasm/WasmSectionParser.cpp:
        (JSC::Wasm::SectionParser::parseTableHelper):
        * wasm/WasmTable.cpp:
        (JSC::Wasm::Table::Table):
        (JSC::Wasm::Table::tryCreate):
        (JSC::Wasm::Table::grow):
        (JSC::Wasm::Table::clear):
        (JSC::Wasm::Table::set):
        (JSC::Wasm::Table::get):
        (JSC::Wasm::Table::visitChildren):
        (JSC::Wasm::FuncRefTable::FuncRefTable):
        (JSC::Wasm::FuncRefTable::setFunction):
        (JSC::Wasm::Table::~Table): Deleted.
        (JSC::Wasm::Table::clearFunction): Deleted.
        (JSC::Wasm::Table::setFunction): Deleted.
        * wasm/WasmTable.h:
        (JSC::Wasm::Table::length const):
        (JSC::Wasm::Table::type const):
        (JSC::Wasm::Table::setOwner):
        (JSC::Wasm::FuncRefTable::offsetOfFunctions):
        (JSC::Wasm::FuncRefTable::offsetOfInstances):
        (JSC::Wasm::Table::offsetOfFunctions): Deleted.
        (JSC::Wasm::Table::offsetOfInstances): Deleted.
        * wasm/WasmValidate.cpp:
        (JSC::Wasm::Validate::addTableGet):
        (JSC::Wasm::Validate::addTableSet):
        (JSC::Wasm::Validate::addCallIndirect):
        * wasm/js/JSWebAssemblyTable.cpp:
        (JSC::JSWebAssemblyTable::JSWebAssemblyTable):
        (JSC::JSWebAssemblyTable::finishCreation):
        (JSC::JSWebAssemblyTable::visitChildren):
        (JSC::JSWebAssemblyTable::grow):
        (JSC::JSWebAssemblyTable::get):
        (JSC::JSWebAssemblyTable::set):
        (JSC::JSWebAssemblyTable::clear):
        (JSC::JSWebAssemblyTable::getFunction): Deleted.
        (JSC::JSWebAssemblyTable::clearFunction): Deleted.
        (JSC::JSWebAssemblyTable::setFunction): Deleted.
        * wasm/js/JSWebAssemblyTable.h:
        * wasm/js/WebAssemblyModuleRecord.cpp:
        (JSC::WebAssemblyModuleRecord::link):
        (JSC::WebAssemblyModuleRecord::evaluate):
        * wasm/js/WebAssemblyTableConstructor.cpp:
        (JSC::constructJSWebAssemblyTable):
        * wasm/js/WebAssemblyTablePrototype.cpp:
        (JSC::webAssemblyTableProtoFuncGet):
        (JSC::webAssemblyTableProtoFuncSet):
        * wasm/wasm.json:

2019-06-05  Justin Michaud  <justin_michaud@apple.com>

        WebAssembly: pow functions returns 0 when exponent 1.0 or -1.0
        https://bugs.webkit.org/show_bug.cgi?id=198106

        Reviewed by Saam Barati.

        Fix bug caused by using fcsel sX instead of fcsel dX on an f64 value in moveDoubleConditionally32.

        * assembler/MacroAssemblerARM64.h:
        (JSC::MacroAssemblerARM64::moveDoubleConditionally32):

2019-06-05  Alex Christensen  <achristensen@webkit.org>

        Progress towards resurrecting Mac CMake build
        https://bugs.webkit.org/show_bug.cgi?id=197132

        Reviewed by Don Olmstead.

        * API/JSScript.mm:
        (-[JSScript readCache]):
        (-[JSScript sourceCode]):
        (-[JSScript jsSourceCode]):
        (-[JSScript writeCache:]):
        * CMakeLists.txt:

== Rolled over to ChangeLog-2019-06-05 ==