path: root/JavaScriptCore/ChangeLog

2008-11-04  Adam Roben  <aroben@apple.com>

        Windows build fix

        * JavaScriptCore.vcproj/JavaScriptCore/JavaScriptCore.vcproj: Update
        the location of JSStaticScopeObject.{cpp,h}.

2008-11-04  Cameron Zwarich  <zwarich@apple.com>

        Reviewed by Alexey Proskuryakov.

        Move AllInOneFile.cpp to the top level of JavaScriptCore.

        * AllInOneFile.cpp: Copied from kjs/AllInOneFile.cpp.
        * GNUmakefile.am:
        * JavaScriptCore.xcodeproj/project.pbxproj:
        * kjs/AllInOneFile.cpp: Removed.

2008-11-04  Cameron Zwarich  <zwarich@apple.com>

        Rubber-stamped by Alexey Proskuryakov.

        Add NodeInfo.h to the JavaScriptCore Xcode project.

        * JavaScriptCore.xcodeproj/project.pbxproj:

2008-11-03  Cameron Zwarich  <zwarich@apple.com>

        Rubber-stamped by Maciej Stachowiak.

        Move more files into the runtime subdirectory of JavaScriptCore.

        * API/JSBase.cpp:
        * API/JSCallbackConstructor.cpp:
        * API/JSCallbackFunction.cpp:
        * API/JSClassRef.cpp:
        * API/OpaqueJSString.cpp:
        * GNUmakefile.am:
        * JavaScriptCore.pri:
        * JavaScriptCore.vcproj/JavaScriptCore/JavaScriptCore.vcproj:
        * JavaScriptCore.xcodeproj/project.pbxproj:
        * JavaScriptCoreSources.bkl:
        * kjs/AllInOneFile.cpp:
        * kjs/ArgList.cpp: Removed.
        * kjs/ArgList.h: Removed.
        * kjs/Arguments.cpp: Removed.
        * kjs/Arguments.h: Removed.
        * kjs/BatchedTransitionOptimizer.h: Removed.
        * kjs/CollectorHeapIterator.h: Removed.
        * kjs/CommonIdentifiers.cpp: Removed.
        * kjs/CommonIdentifiers.h: Removed.
        * kjs/ExecState.cpp: Removed.
        * kjs/ExecState.h: Removed.
        * kjs/GetterSetter.cpp: Removed.
        * kjs/GetterSetter.h: Removed.
        * kjs/InitializeThreading.cpp: Removed.
        * kjs/InitializeThreading.h: Removed.
        * kjs/JSActivation.cpp: Removed.
        * kjs/JSActivation.h: Removed.
        * kjs/JSGlobalData.cpp: Removed.
        * kjs/JSGlobalData.h: Removed.
        * kjs/JSLock.cpp: Removed.
        * kjs/JSLock.h: Removed.
        * kjs/JSStaticScopeObject.cpp: Removed.
        * kjs/JSStaticScopeObject.h: Removed.
        * kjs/JSType.h: Removed.
        * kjs/PropertyNameArray.cpp: Removed.
        * kjs/PropertyNameArray.h: Removed.
        * kjs/ScopeChain.cpp: Removed.
        * kjs/ScopeChain.h: Removed.
        * kjs/ScopeChainMark.h: Removed.
        * kjs/SymbolTable.h: Removed.
        * kjs/Tracing.d: Removed.
        * kjs/Tracing.h: Removed.
        * runtime/ArgList.cpp: Copied from kjs/ArgList.cpp.
        * runtime/ArgList.h: Copied from kjs/ArgList.h.
        * runtime/Arguments.cpp: Copied from kjs/Arguments.cpp.
        * runtime/Arguments.h: Copied from kjs/Arguments.h.
        * runtime/BatchedTransitionOptimizer.h: Copied from kjs/BatchedTransitionOptimizer.h.
        * runtime/CollectorHeapIterator.h: Copied from kjs/CollectorHeapIterator.h.
        * runtime/CommonIdentifiers.cpp: Copied from kjs/CommonIdentifiers.cpp.
        * runtime/CommonIdentifiers.h: Copied from kjs/CommonIdentifiers.h.
        * runtime/ExecState.cpp: Copied from kjs/ExecState.cpp.
        * runtime/ExecState.h: Copied from kjs/ExecState.h.
        * runtime/GetterSetter.cpp: Copied from kjs/GetterSetter.cpp.
        * runtime/GetterSetter.h: Copied from kjs/GetterSetter.h.
        * runtime/InitializeThreading.cpp: Copied from kjs/InitializeThreading.cpp.
        * runtime/InitializeThreading.h: Copied from kjs/InitializeThreading.h.
        * runtime/JSActivation.cpp: Copied from kjs/JSActivation.cpp.
        * runtime/JSActivation.h: Copied from kjs/JSActivation.h.
        * runtime/JSGlobalData.cpp: Copied from kjs/JSGlobalData.cpp.
        * runtime/JSGlobalData.h: Copied from kjs/JSGlobalData.h.
        * runtime/JSLock.cpp: Copied from kjs/JSLock.cpp.
        * runtime/JSLock.h: Copied from kjs/JSLock.h.
        * runtime/JSStaticScopeObject.cpp: Copied from kjs/JSStaticScopeObject.cpp.
        * runtime/JSStaticScopeObject.h: Copied from kjs/JSStaticScopeObject.h.
        * runtime/JSType.h: Copied from kjs/JSType.h.
        * runtime/PropertyNameArray.cpp: Copied from kjs/PropertyNameArray.cpp.
        * runtime/PropertyNameArray.h: Copied from kjs/PropertyNameArray.h.
        * runtime/ScopeChain.cpp: Copied from kjs/ScopeChain.cpp.
        * runtime/ScopeChain.h: Copied from kjs/ScopeChain.h.
        * runtime/ScopeChainMark.h: Copied from kjs/ScopeChainMark.h.
        * runtime/SymbolTable.h: Copied from kjs/SymbolTable.h.
        * runtime/Tracing.d: Copied from kjs/Tracing.d.
        * runtime/Tracing.h: Copied from kjs/Tracing.h.

2008-11-03  Sam Weinig  <sam@webkit.org>

        Reviewed by Mark Rowe.

        Move #define to turn on dumping StructureID statistics to StructureID.cpp so that
        turning it on does not require a full rebuild. 

        * runtime/StructureID.cpp:
        (JSC::StructureID::dumpStatistics):
        * runtime/StructureID.h:

2008-11-03  Alp Toker  <alp@nuanti.com>

        Reviewed by Geoffrey Garen.

        Fix warning when building on Darwin without JSC_MULTIPLE_THREADS
        enabled.

        * kjs/InitializeThreading.cpp:

2008-11-02  Matt Lilek  <webkit@mattlilek.com>

        Reviewed by Cameron Zwarich.

        Bug 22042: REGRESSION(r38066): ASSERTION FAILED: source in CodeBlock
        <https://bugs.webkit.org/show_bug.cgi?id=22042>

        Rename parameter name to avoid ASSERT.

        * VM/CodeBlock.h:
        (JSC::CodeBlock::CodeBlock):
        (JSC::ProgramCodeBlock::ProgramCodeBlock):
        (JSC::EvalCodeBlock::EvalCodeBlock):

2008-11-02  Cameron Zwarich  <zwarich@apple.com>

        Reviewed by Oliver Hunt.

        Bug 22035: Remove the '_' suffix on constructor parameter names for structs
        <https://bugs.webkit.org/show_bug.cgi?id=22035>

        * API/JSCallbackObject.h:
        (JSC::JSCallbackObject::JSCallbackObjectData::JSCallbackObjectData):
        * VM/CodeBlock.h:
        (JSC::CodeBlock::CodeBlock):
        (JSC::ProgramCodeBlock::ProgramCodeBlock):
        (JSC::EvalCodeBlock::EvalCodeBlock):
        * wrec/WREC.h:
        (JSC::Quantifier::Quantifier):

2008-10-31  Cameron Zwarich  <zwarich@apple.com>

        Rubber-stamped by Geoff Garen.

        Rename SourceRange.h to SourceCode.h.

        * API/JSBase.cpp:
        * GNUmakefile.am:
        * JavaScriptCore.vcproj/JavaScriptCore/JavaScriptCore.vcproj:
        * JavaScriptCore.xcodeproj/project.pbxproj:
        * VM/CodeBlock.h:
        * kjs/SourceCode.h: Copied from kjs/SourceRange.h.
        * kjs/SourceRange.h: Removed.
        * kjs/grammar.y:
        * kjs/lexer.h:
        * kjs/nodes.cpp:
        (JSC::ForInNode::ForInNode):
        * kjs/nodes.h:
        (JSC::ThrowableExpressionData::setExceptionSourceCode):

2008-10-31  Cameron Zwarich  <zwarich@apple.com>

        Reviewed by Darin Adler.

        Bug 22019: Move JSC::Interpreter::shouldPrintExceptions() to WebCore::Console
        <https://bugs.webkit.org/show_bug.cgi?id=22019>

        The JSC::Interpreter::shouldPrintExceptions() function is not used at
        all in JavaScriptCore, so it should be moved to WebCore::Console, its
        only user.

        * JavaScriptCore.exp:
        * kjs/interpreter.cpp:
        * kjs/interpreter.h:

2008-10-31  Cameron Zwarich  <zwarich@apple.com>

        Not reviewed.

        Windows build fix.

        * JavaScriptCore.vcproj/JavaScriptCore/JavaScriptCore.vcproj:

2008-10-31  Cameron Zwarich  <zwarich@apple.com>

        Rubber-stamped by Sam Weinig.

        Remove the call to Interpreter::setShouldPrintExceptions() from the
        GlobalObject constructor in the shell. The shouldPrintExceptions()
        information is not used anywhere in JavaScriptCore, only in WebCore.

        * kjs/Shell.cpp:
        (GlobalObject::GlobalObject):

2008-10-31  Kevin Ollivier  <kevino@theolliviers.com>

        wxMSW build fix.

        * wtf/Threading.h:

2008-10-31  Cameron Zwarich  <zwarich@apple.com>

        Rubber-stamped by Sam Weinig.

        Move more files from the kjs subdirectory of JavaScriptCore to the
        runtime subdirectory.

        * GNUmakefile.am:
        * JavaScriptCore.pri:
        * JavaScriptCore.xcodeproj/project.pbxproj:
        * JavaScriptCoreSources.bkl:
        * kjs/AllInOneFile.cpp:
        * kjs/RegExpConstructor.cpp: Removed.
        * kjs/RegExpConstructor.h: Removed.
        * kjs/RegExpMatchesArray.h: Removed.
        * kjs/RegExpObject.cpp: Removed.
        * kjs/RegExpObject.h: Removed.
        * kjs/RegExpPrototype.cpp: Removed.
        * kjs/RegExpPrototype.h: Removed.
        * runtime/RegExpConstructor.cpp: Copied from kjs/RegExpConstructor.cpp.
        * runtime/RegExpConstructor.h: Copied from kjs/RegExpConstructor.h.
        * runtime/RegExpMatchesArray.h: Copied from kjs/RegExpMatchesArray.h.
        * runtime/RegExpObject.cpp: Copied from kjs/RegExpObject.cpp.
        * runtime/RegExpObject.h: Copied from kjs/RegExpObject.h.
        * runtime/RegExpPrototype.cpp: Copied from kjs/RegExpPrototype.cpp.
        * runtime/RegExpPrototype.h: Copied from kjs/RegExpPrototype.h.

2008-10-31  Mark Rowe  <mrowe@apple.com>

        Revert an incorrect portion of r38034.

        * profiler/ProfilerServer.mm:

2008-10-31  Mark Rowe  <mrowe@apple.com>

        Fix the 64-bit build.

        Disable strict aliasing in ProfilerServer.mm as it leads to the compiler being unhappy
        with the common Obj-C idiom self = [super init];

        * JavaScriptCore.xcodeproj/project.pbxproj:

2008-10-31  Cameron Zwarich  <zwarich@apple.com>

        Reviewed by Alexey Proskuryakov.

        Change a header guard to match our coding style.

        * kjs/InitializeThreading.h:

2008-10-30  Geoffrey Garen  <ggaren@apple.com>

        Reviewed by Oliver Hunt.
        
        Fixed a small bit of https://bugs.webkit.org/show_bug.cgi?id=21962
        AST uses way too much memory
        
        Removed a word from StatementNode by nixing LabelStack and turning it
        into a compile-time data structure managed by CodeGenerator.
        
        v8 tests and SunSpider, run by Gavin, report no change.

        * GNUmakefile.am:
        * JavaScriptCore.order:
        * JavaScriptCore.pri:
        * JavaScriptCore.vcproj/JavaScriptCore/JavaScriptCore.vcproj:
        * JavaScriptCore.xcodeproj/project.pbxproj:
        * kjs/AllInOneFile.cpp:
        * JavaScriptCoreSources.bkl: I sure hope this builds!
        
        * VM/CodeGenerator.cpp:
        (JSC::CodeGenerator::CodeGenerator):
        (JSC::CodeGenerator::newLabelScope):
        (JSC::CodeGenerator::breakTarget):
        (JSC::CodeGenerator::continueTarget):
        * VM/CodeGenerator.h: Nixed the JumpContext system because it depended
        on a LabelStack in the AST, and it was a little cumbersome on the client
        side. Replaced with LabelScope, which tracks all break / continue
        information in the CodeGenerator, just like we track LabelIDs and other
        stacks of compile-time data.

        * kjs/LabelScope.h: Added.
        (JSC::LabelScope::):
        (JSC::LabelScope::LabelScope):
        (JSC::LabelScope::ref):
        (JSC::LabelScope::deref):
        (JSC::LabelScope::refCount):
        (JSC::LabelScope::breakTarget):
        (JSC::LabelScope::continueTarget):
        (JSC::LabelScope::type):
        (JSC::LabelScope::name):
        (JSC::LabelScope::scopeDepth): Simple abstraction for holding everything
        you might want to know about a break-able / continue-able scope.

        * kjs/LabelStack.cpp: Removed.
        * kjs/LabelStack.h: Removed.

        * kjs/grammar.y: No need to push labels at parse time -- we don't store
        LabelStacks in the AST anymore.

        * kjs/nodes.cpp:
        (JSC::DoWhileNode::emitCode):
        (JSC::WhileNode::emitCode):
        (JSC::ForNode::emitCode):
        (JSC::ForInNode::emitCode):
        (JSC::ContinueNode::emitCode):
        (JSC::BreakNode::emitCode):
        (JSC::SwitchNode::emitCode):
        (JSC::LabelNode::emitCode):
        * kjs/nodes.h:
        (JSC::StatementNode::):
        (JSC::LabelNode::): Use LabelScope where we used to use JumpContext.
        Simplified a bunch of code. Touched up label-related error messages a
        bit.

        * kjs/nodes2string.cpp:
        (JSC::LabelNode::streamTo): Updated for rename.

2008-10-31  Cameron Zwarich  <zwarich@apple.com>

        Reviewed by Darin Adler.

        Bug 22005: Move StructureIDChain into its own file
        <https://bugs.webkit.org/show_bug.cgi?id=22005>

        * GNUmakefile.am:
        * JavaScriptCore.pri:
        * JavaScriptCore.vcproj/JavaScriptCore/JavaScriptCore.vcproj:
        * JavaScriptCore.xcodeproj/project.pbxproj:
        * JavaScriptCoreSources.bkl:
        * runtime/StructureID.cpp:
        * runtime/StructureID.h:
        * runtime/StructureIDChain.cpp: Copied from runtime/StructureID.cpp.
        * runtime/StructureIDChain.h: Copied from runtime/StructureID.h.

2008-10-31  Steve Falkenburg  <sfalken@apple.com>

        Build fix.

        * JavaScriptCore.vcproj/jsc/jsc.vcproj:

2008-10-31  Steve Falkenburg  <sfalken@apple.com>

        Build fix.

        * JavaScriptCore.vcproj/JavaScriptCore/JavaScriptCore.vcproj:

2008-10-31  Darin Adler  <darin@apple.com>

        Reviewed by Dan Bernstein.

        - fix storage leak seen on buildbot

        Some other cleanup too. The storage leak was caused by the fact
        that HashTraits<CallIdentifier>::needsDestruction was false, so
        the call identifier objects didn't get deleted.

        * profiler/CallIdentifier.h:
        
        Added a default constructor to create empty call identifiers.

        Changed the normal constructor to use const UString&
        to avoid extra copying and reference count thrash.
        
        Removed the explicit copy constructor definition, since it's what
        the compiler will automatically generate. (Rule of thumb: Either
        you need both a custom copy constructor and a custom assignment
        operator, or neither.)

        Moved the CallIdentifier hash function out of the WTF namespace;
        there's no reason to put it there.

        Changed the CallIdentifier hash function to be a struct rather than
        a specialization of the IntHash struct template. Having it be
        a specialization made no sense, since CallIdentifier is not an integer,
        and did no good.

        Removed explicit definition of emptyValueIsZero in the hash traits,
        since inheriting from GenericHashTraits already makes that false.

        Removed explicit definition of emptyValue, instead relying on the
        default constructor and GenericHashTraits.

        Removed explicit definition of needsDestruction, because we want it
        to have its default value: true, not false. This fixes the leak!

        Changed constructDeletedValue and isDeletedValue to use a line number
        of numeric_limits<unsigned>::max() to indicate a value is deleted.
        Previously this used empty strings for the empty value and null strings
        for the deleted value, but it's more efficient to use null for both.

2008-10-31  Timothy Hatcher  <timothy@apple.com>

        Emit the WillExecuteStatement debugger hook before the for loop body
        when the statement node for the body isn't a block. This allows
        breakpoints on those statements in the Web Inspector.

        https://bugs.webkit.org/show_bug.cgi?id=22004

        Reviewed by Darin Adler.

        * kjs/nodes.cpp:
        (JSC::ForNode::emitCode): Emit the WillExecuteStatement
        debugger hook before the statement node if isn't a block.
        Also emit the WillExecuteStatement debugger hook for the
        loop as the first op-code.
        (JSC::ForInNode::emitCode): Ditto.

2008-10-31  Timothy Hatcher  <timothy@apple.com>

        Fixes console warnings about not having an autorelease pool.
        Also fixes the build for Snow Leopard, by including individual
        Foundation headers instead of Foundation.h.

        https://bugs.webkit.org/show_bug.cgi?id=21995

        Reviewed by Oliver Hunt.

        * profiler/ProfilerServer.mm:
        (-[ProfilerServer init]): Create a NSAutoreleasePool and drain it.

2008-10-31  Cameron Zwarich  <zwarich@apple.com>

        Not reviewed.

        Speculative wxWindows build fix.

        * JavaScriptCoreSources.bkl:
        * jscore.bkl:

2008-10-31  Cameron Zwarich  <zwarich@apple.com>

        Rubber-stamped by Maciej Stachowiak.

        Move VM/JSPropertyNameIterator.cpp and VM/JSPropertyNameIterator.h to
        the runtime directory.

        * GNUmakefile.am:
        * JavaScriptCore.pri:
        * JavaScriptCore.vcproj/JavaScriptCore/JavaScriptCore.vcproj:
        * JavaScriptCore.xcodeproj/project.pbxproj:
        * JavaScriptCoreSources.bkl:
        * VM/JSPropertyNameIterator.cpp: Removed.
        * VM/JSPropertyNameIterator.h: Removed.
        * runtime/JSPropertyNameIterator.cpp: Copied from VM/JSPropertyNameIterator.cpp.
        * runtime/JSPropertyNameIterator.h: Copied from VM/JSPropertyNameIterator.h.

2008-10-31  Cameron Zwarich  <zwarich@apple.com>

        Not reviewed.

        Speculative wxWindows build fix.

        * jscore.bkl:

2008-10-30  Mark Rowe  <mrowe@apple.com>

        Reviewed by Jon Homeycutt.

        Explicitly default to building for only the native architecture in debug and release builds.

        * Configurations/DebugRelease.xcconfig:

2008-10-30  Cameron Zwarich  <zwarich@apple.com>

        Rubber-stamped by Sam Weinig.

        Create a debugger directory in JavaScriptCore and move the relevant
        files to it.

        * GNUmakefile.am:
        * JavaScriptCore.pri:
        * JavaScriptCore.vcproj/JavaScriptCore/JavaScriptCore.vcproj:
        * JavaScriptCore.xcodeproj/project.pbxproj:
        * VM/CodeBlock.cpp:
        * VM/CodeGenerator.h:
        * VM/Machine.cpp:
        * debugger: Added.
        * debugger/Debugger.cpp: Copied from kjs/debugger.cpp.
        * debugger/Debugger.h: Copied from kjs/debugger.h.
        * debugger/DebuggerCallFrame.cpp: Copied from kjs/DebuggerCallFrame.cpp.
        * debugger/DebuggerCallFrame.h: Copied from kjs/DebuggerCallFrame.h.
        * kjs/AllInOneFile.cpp:
        * kjs/DebuggerCallFrame.cpp: Removed.
        * kjs/DebuggerCallFrame.h: Removed.
        * kjs/Parser.cpp:
        * kjs/Parser.h:
        * kjs/debugger.cpp: Removed.
        * kjs/debugger.h: Removed.
        * kjs/interpreter.cpp:
        * kjs/nodes.cpp:
        * runtime/FunctionConstructor.cpp:
        * runtime/JSGlobalObject.cpp:

2008-10-30  Benjamin K. Stuhl  <bks24@cornell.edu>

        gcc 4.3.3/linux-x86 generates "suggest parentheses around && within ||"
        warnings; add some parentheses to disambiguate things. No functional
        changes, so no tests.

        https://bugs.webkit.org/show_bug.cgi?id=21973
        Add parentheses to clean up some gcc warnings

        Reviewed by Dan Bernstein.

        * wtf/ASCIICType.h:
        (WTF::isASCIIAlphanumeric):
        (WTF::isASCIIHexDigit):

2008-10-30  Kevin Lindeman  <klindeman@apple.com>

        Adds ProfilerServer, which is a distributed notification listener
        that allows starting and stopping the profiler remotely for use
        in conjunction with the profiler's DTace probes.

        https://bugs.webkit.org/show_bug.cgi?id=21719

        Reviewed by Timothy Hatcher.

        * JavaScriptCore.xcodeproj/project.pbxproj:
        * kjs/JSGlobalData.cpp:
        (JSC::JSGlobalData::JSGlobalData): Calls startProfilerServerIfNeeded.
        * profiler/ProfilerServer.h: Added.
        * profiler/ProfilerServer.mm: Added.
        (+[ProfilerServer sharedProfileServer]):
        (-[ProfilerServer init]):
        (-[ProfilerServer startProfiling]):
        (-[ProfilerServer stopProfiling]):
        (JSC::startProfilerServerIfNeeded):

2008-10-30  Kevin Ollivier  <kevino@theolliviers.com>

        wx build fix after PropertyMap and StructureID merge.

        * JavaScriptCoreSources.bkl:

2008-10-30  Cameron Zwarich  <zwarich@apple.com>

        Reviewed by Mark Rowe.

        Change the JavaScriptCore Xcode project to use relative paths for the
        PCRE source files.

        * JavaScriptCore.xcodeproj/project.pbxproj:

2008-10-30  Sam Weinig  <sam@webkit.org>

        Reviewed by Cameron Zwarich and Geoffrey Garen.

        Fix for https://bugs.webkit.org/show_bug.cgi?id=21989
        Merge PropertyMap and StructureID

        - Move PropertyMap code into StructureID in preparation for lazily
          creating the map on gets.
        - Make remove with transition explicit by adding removePropertyTransition.
        - Make the put/remove without transition explicit.
        - Make cache invalidation part of put/remove without transition.

        1% speedup on SunSpider; 0.5% speedup on v8 suite.

        * GNUmakefile.am:
        * JavaScriptCore.exp:
        * JavaScriptCore.pri:
        * JavaScriptCore.vcproj/JavaScriptCore/JavaScriptCore.vcproj:
        * JavaScriptCore.xcodeproj/project.pbxproj:
        * JavaScriptCoreSources.bkl:
        * kjs/AllInOneFile.cpp:
        * kjs/identifier.h:
        * runtime/JSObject.cpp:
        (JSC::JSObject::removeDirect):
        * runtime/JSObject.h:
        (JSC::JSObject::putDirect):
        * runtime/PropertyMap.cpp: Removed.
        * runtime/PropertyMap.h: Removed.
        * runtime/PropertyMapHashTable.h: Copied from runtime/PropertyMap.h.
        * runtime/StructureID.cpp:
        (JSC::StructureID::dumpStatistics):
        (JSC::StructureID::StructureID):
        (JSC::StructureID::~StructureID):
        (JSC::StructureID::getEnumerablePropertyNames):
        (JSC::StructureID::addPropertyTransition):
        (JSC::StructureID::removePropertyTransition):
        (JSC::StructureID::toDictionaryTransition):
        (JSC::StructureID::changePrototypeTransition):
        (JSC::StructureID::getterSetterTransition):
        (JSC::StructureID::addPropertyWithoutTransition):
        (JSC::StructureID::removePropertyWithoutTransition):
        (JSC::PropertyMapStatisticsExitLogger::~PropertyMapStatisticsExitLogger):
        (JSC::StructureID::checkConsistency):
        (JSC::StructureID::copyPropertyTable):
        (JSC::StructureID::get):
        (JSC::StructureID::put):
        (JSC::StructureID::remove):
        (JSC::StructureID::insertIntoPropertyMapHashTable):
        (JSC::StructureID::expandPropertyMapHashTable):
        (JSC::StructureID::createPropertyMapHashTable):
        (JSC::StructureID::rehashPropertyMapHashTable):
        (JSC::comparePropertyMapEntryIndices):
        (JSC::StructureID::getEnumerablePropertyNamesInternal):
        * runtime/StructureID.h:
        (JSC::StructureID::propertyStorageSize):
        (JSC::StructureID::isEmpty):
        (JSC::StructureID::get):

2008-10-30  Cameron Zwarich  <zwarich@apple.com>

        Reviewed by Oliver Hunt.

        Bug 21987: CTI::putDoubleResultToJSNumberCellOrJSImmediate() hardcodes its result register
        <https://bugs.webkit.org/show_bug.cgi?id=21987>

        CTI::putDoubleResultToJSNumberCellOrJSImmediate() hardcodes its result
        register as ecx, but it should be tempReg1, which is ecx at all of its
        callsites.

        * VM/CTI.cpp:
        (JSC::CTI::putDoubleResultToJSNumberCellOrJSImmediate):

2008-10-30  Cameron Zwarich  <zwarich@apple.com>

        Reviewed by Sam Weinig.

        Bug 21985: Opcodes should use eax as their destination register whenever possible
        <https://bugs.webkit.org/show_bug.cgi?id=21985>

        Change more opcodes to use eax as the register for their final result,
        and change calls to emitPutResult() that pass eax to rely on the default
        value of eax.

        * VM/CTI.cpp:
        (JSC::CTI::privateCompileMainPass):

2008-10-30  Alp Toker  <alp@nuanti.com>

        Build fix attempt for older gcc on the trunk-mac-intel build bot
        (error: initializer for scalar variable requires one element).

        Modify the initializer syntax slightly with an additional comma.

        * VM/Machine.cpp:
        (JSC::Machine::cti_op_call_JSFunction):
        (JSC::Machine::cti_op_construct_JSConstruct):
        (JSC::Machine::cti_op_resolve_func):
        (JSC::Machine::cti_op_post_inc):
        (JSC::Machine::cti_op_resolve_with_base):
        (JSC::Machine::cti_op_post_dec):

2008-10-30  Alp Toker  <alp@nuanti.com>

        Reviewed by Alexey Proskuryakov.

        https://bugs.webkit.org/show_bug.cgi?id=21571
        VoidPtrPair breaks CTI on Linux

        The VoidPtrPair return change made in r37457 does not work on Linux
        since POD structs aren't passed in registers.

        This patch uses a union to vectorize VoidPtrPair to a uint64_t and
        matches Darwin/MSVC fixing CTI/WREC on Linux.

        Alexey reports no measurable change in Mac performance with this fix.

        * VM/Machine.cpp:
        (JSC::Machine::cti_op_call_JSFunction):
        (JSC::Machine::cti_op_construct_JSConstruct):
        (JSC::Machine::cti_op_resolve_func):
        (JSC::Machine::cti_op_post_inc):
        (JSC::Machine::cti_op_resolve_with_base):
        (JSC::Machine::cti_op_post_dec):
        * VM/Machine.h:
        (JSC::):

2008-10-29  Oliver Hunt  <oliver@apple.com>

        Reviewed by Geoff Garen.

        Initial work to reduce cost of JSNumberCell allocation

        This does the initial work needed to bring more of number
        allocation into CTI code directly, rather than just falling
        back onto the slow paths if we can't guarantee that a number
        cell can be reused.

        Initial implementation only used by op_negate to make sure
        it all works.  In a negate heavy (though not dominated) test
        it results in a 10% win in the non-reusable cell case.

        * VM/CTI.cpp:
        (JSC::):
        (JSC::CTI::emitAllocateNumber):
        (JSC::CTI::emitNakedFastCall):
        (JSC::CTI::emitArithIntToImmWithJump):
        (JSC::CTI::privateCompileMainPass):
        (JSC::CTI::privateCompileSlowCases):
        * VM/CTI.h:
        * VM/CodeBlock.cpp:
        (JSC::CodeBlock::dump):
        * VM/CodeGenerator.cpp:
        (JSC::CodeGenerator::emitUnaryOp):
        * VM/CodeGenerator.h:
        (JSC::CodeGenerator::emitToJSNumber):
        (JSC::CodeGenerator::emitTypeOf):
        (JSC::CodeGenerator::emitGetPropertyNames):
        * VM/Machine.cpp:
        (JSC::Machine::privateExecute):
        * VM/Machine.h:
        * kjs/ResultType.h:
        (JSC::ResultType::isReusableNumber):
        (JSC::ResultType::toInt):
        * kjs/nodes.cpp:
        (JSC::UnaryOpNode::emitCode):
        (JSC::BinaryOpNode::emitCode):
        (JSC::EqualNode::emitCode):
        * masm/X86Assembler.h:
        (JSC::X86Assembler::):
        (JSC::X86Assembler::negl_r):
        (JSC::X86Assembler::xorpd_mr):
        * runtime/JSNumberCell.h:
        (JSC::JSNumberCell::JSNumberCell):

2008-10-29  Steve Falkenburg  <sfalken@apple.com>

        <rdar://problem/6326563> Crash on launch

        For Windows, export explicit functions rather than exporting data for atomicallyInitializedStaticMutex.
        
        Exporting data from a DLL on Windows requires specifying __declspec(dllimport) in the header used by
        callers, but __declspec(dllexport) when defined in the DLL implementation. By instead exporting
        the explicit lock/unlock functions, we can avoid this.
        
        Fixes a crash on launch, since we were previously erroneously exporting atomicallyInitializedStaticMutex as a function.
        
        Reviewed by Darin Adler.

        * wtf/Threading.h:
        (WTF::lockAtomicallyInitializedStaticMutex):
        (WTF::unlockAtomicallyInitializedStaticMutex):
        * wtf/ThreadingWin.cpp:
        (WTF::lockAtomicallyInitializedStaticMutex):
        (WTF::unlockAtomicallyInitializedStaticMutex):

2008-10-29  Sam Weinig  <sam@webkit.org>

        Reviewed by Oliver Hunt.

        Remove direct use of PropertyMap.

        * JavaScriptCore.exp:
        * runtime/JSObject.cpp:
        (JSC::JSObject::mark):
        (JSC::JSObject::put):
        (JSC::JSObject::deleteProperty):
        (JSC::JSObject::getPropertyAttributes):
        (JSC::JSObject::removeDirect):
        * runtime/JSObject.h:
        (JSC::JSObject::getDirect):
        (JSC::JSObject::getDirectLocation):
        (JSC::JSObject::hasCustomProperties):
        (JSC::JSObject::JSObject):
        (JSC::JSObject::putDirect):
        * runtime/PropertyMap.cpp:
        (JSC::PropertyMap::get):
        * runtime/PropertyMap.h:
        (JSC::PropertyMap::isEmpty):
        (JSC::PropertyMap::get):
        * runtime/StructureID.cpp:
        (JSC::StructureID::dumpStatistics):
        * runtime/StructureID.h:
        (JSC::StructureID::propertyStorageSize):
        (JSC::StructureID::get):
        (JSC::StructureID::put):
        (JSC::StructureID::remove):
        (JSC::StructureID::isEmpty):

2008-10-29  Sam Weinig  <sam@webkit.org>

        Reviewed by Geoffrey Garen.

        Rename and move the StructureID transition table to its own file.

        * GNUmakefile.am:
        * JavaScriptCore.vcproj/JavaScriptCore/JavaScriptCore.vcproj:
        * JavaScriptCore.xcodeproj/project.pbxproj:
        * runtime/StructureID.cpp:
        (JSC::StructureID::addPropertyTransition):
        * runtime/StructureID.h:
        (JSC::StructureID::):
        * runtime/StructureIDTransitionTable.h: Copied from runtime/StructureID.h.
        (JSC::StructureIDTransitionTableHash::hash):
        (JSC::StructureIDTransitionTableHash::equal):

2008-10-29  Sam Weinig  <sam@webkit.org>

        Reviewed by Cameron Zwarich.

        Fix for https://bugs.webkit.org/show_bug.cgi?id=21958
        Pack bits in StructureID to reduce the size of each StructureID by 2 words.

        * runtime/PropertyMap.h:
        (JSC::PropertyMap::propertyMapSize):
        * runtime/StructureID.cpp:
        (JSC::StructureID::dumpStatistics): Add additional size statistics when dumping.
        (JSC::StructureID::StructureID):
        * runtime/StructureID.h:

2008-10-29  Kevin Ollivier  <kevino@theolliviers.com>

        wx build fixes after addition of runtime and ImageBuffer changes.

        * JavaScriptCoreSources.bkl:
        * jscore.bkl:

2008-10-29  Timothy Hatcher  <timothy@apple.com>

        Emit the WillExecuteStatement debugger hook before the "else" body
        when there is no block for the "else" body. This allows breakpoints
        on those statements in the Web Inspector.

        https://bugs.webkit.org/show_bug.cgi?id=21944

        Reviewed by Maciej Stachowiak.

        * kjs/nodes.cpp:
        (JSC::IfElseNode::emitCode): Emit the WillExecuteStatement
        debugger hook before the else node if isn't a block.

2008-10-29  Alexey Proskuryakov  <ap@webkit.org>

        Build fix.

        * JavaScriptCore.exp: Export HashTable::deleteTable().

2008-10-28  Alp Toker  <alp@nuanti.com>

        Fix builddir != srcdir builds after kjs -> runtime breakage. Sources
        may now be generated in both kjs/ and runtime/.

        Also sort the sources list for readability.

        * GNUmakefile.am:

2008-10-28  Alp Toker  <alp@nuanti.com>

        Reviewed by Cameron Zwarich.

        Build fix attempt after kjs -> runtime rename.

        * GNUmakefile.am:

2008-10-28  Cameron Zwarich  <zwarich@apple.com>

        Not reviewed.

        Remove a duplicate includes directory.

        * JavaScriptCore.vcproj/JavaScriptCore/JavaScriptCore.vcproj:

2008-10-28  Cameron Zwarich  <zwarich@apple.com>

        Not reviewed.

        Attempt to fix the Windows build.

        * JavaScriptCore.vcproj/JavaScriptCore/JavaScriptCore.vcproj:
        * JavaScriptCore.vcproj/jsc/jsc.vcproj:

2008-10-28  Dan Bernstein  <mitz@apple.com>

        Reviewed by Mark Rowe.

        - export WTF::atomicallyInitializedStaticMutex

        * JavaScriptCore.exp:

2008-10-28  Geoffrey Garen  <ggaren@apple.com>

        Reviewed by Cameron Zwarich.
        
        Fixed CodeBlock dumping to accurately report constant register indices.

        * VM/CodeBlock.cpp:
        (JSC::CodeBlock::dump):

2008-10-28  Cameron Zwarich  <zwarich@apple.com>

        Not reviewed.

        More Qt build fixes.

        * JavaScriptCore.pri:

2008-10-28  Cameron Zwarich  <zwarich@apple.com>

        Not reviewed.

        Fix the Qt build, hopefully for real this time.

        * JavaScriptCore.pri:

2008-10-28  Cameron Zwarich  <zwarich@apple.com>

        Not reviewed.

        Fix the Qt build.

        * JavaScriptCore.pri:

2008-10-28  Cameron Zwarich  <zwarich@apple.com>

        Not reviewed.

        Fix the Windows build.

        * JavaScriptCore.vcproj/JavaScriptCore/JavaScriptCore.vcproj:

2008-10-28  Cameron Zwarich  <zwarich@apple.com>

        Rubber-stamped by Sam Weinig.

        Create a runtime directory in JavaScriptCore and begin moving files to
        it. This is the first step towards removing the kjs directory and
        placing files in more meaningful subdirectories of JavaScriptCore.

        * API/JSBase.cpp:
        * API/JSCallbackConstructor.cpp:
        * API/JSCallbackConstructor.h:
        * API/JSCallbackFunction.cpp:
        * API/JSClassRef.cpp:
        * API/JSClassRef.h:
        * API/JSStringRefCF.cpp:
        * API/JSValueRef.cpp:
        * API/OpaqueJSString.cpp:
        * DerivedSources.make:
        * GNUmakefile.am:
        * JavaScriptCore.vcproj/JavaScriptCore/JavaScriptCore.vcproj:
        * JavaScriptCore.xcodeproj/project.pbxproj:
        * kjs/AllInOneFile.cpp:
        * kjs/ArrayConstructor.cpp: Removed.
        * kjs/ArrayConstructor.h: Removed.
        * kjs/ArrayPrototype.cpp: Removed.
        * kjs/ArrayPrototype.h: Removed.
        * kjs/BooleanConstructor.cpp: Removed.
        * kjs/BooleanConstructor.h: Removed.
        * kjs/BooleanObject.cpp: Removed.
        * kjs/BooleanObject.h: Removed.
        * kjs/BooleanPrototype.cpp: Removed.
        * kjs/BooleanPrototype.h: Removed.
        * kjs/CallData.cpp: Removed.
        * kjs/CallData.h: Removed.
        * kjs/ClassInfo.h: Removed.
        * kjs/ConstructData.cpp: Removed.
        * kjs/ConstructData.h: Removed.
        * kjs/DateConstructor.cpp: Removed.
        * kjs/DateConstructor.h: Removed.
        * kjs/DateInstance.cpp: Removed.
        * kjs/DateInstance.h: Removed.
        * kjs/DateMath.cpp: Removed.
        * kjs/DateMath.h: Removed.
        * kjs/DatePrototype.cpp: Removed.
        * kjs/DatePrototype.h: Removed.
        * kjs/Error.cpp: Removed.
        * kjs/Error.h: Removed.
        * kjs/ErrorConstructor.cpp: Removed.
        * kjs/ErrorConstructor.h: Removed.
        * kjs/ErrorInstance.cpp: Removed.
        * kjs/ErrorInstance.h: Removed.
        * kjs/ErrorPrototype.cpp: Removed.
        * kjs/ErrorPrototype.h: Removed.
        * kjs/FunctionConstructor.cpp: Removed.
        * kjs/FunctionConstructor.h: Removed.
        * kjs/FunctionPrototype.cpp: Removed.
        * kjs/FunctionPrototype.h: Removed.
        * kjs/GlobalEvalFunction.cpp: Removed.
        * kjs/GlobalEvalFunction.h: Removed.
        * kjs/InternalFunction.cpp: Removed.
        * kjs/InternalFunction.h: Removed.
        * kjs/JSArray.cpp: Removed.
        * kjs/JSArray.h: Removed.
        * kjs/JSCell.cpp: Removed.
        * kjs/JSCell.h: Removed.
        * kjs/JSFunction.cpp: Removed.
        * kjs/JSFunction.h: Removed.
        * kjs/JSGlobalObject.cpp: Removed.
        * kjs/JSGlobalObject.h: Removed.
        * kjs/JSGlobalObjectFunctions.cpp: Removed.
        * kjs/JSGlobalObjectFunctions.h: Removed.
        * kjs/JSImmediate.cpp: Removed.
        * kjs/JSImmediate.h: Removed.
        * kjs/JSNotAnObject.cpp: Removed.
        * kjs/JSNotAnObject.h: Removed.
        * kjs/JSNumberCell.cpp: Removed.
        * kjs/JSNumberCell.h: Removed.
        * kjs/JSObject.cpp: Removed.
        * kjs/JSObject.h: Removed.
        * kjs/JSString.cpp: Removed.
        * kjs/JSString.h: Removed.
        * kjs/JSValue.cpp: Removed.
        * kjs/JSValue.h: Removed.
        * kjs/JSVariableObject.cpp: Removed.
        * kjs/JSVariableObject.h: Removed.
        * kjs/JSWrapperObject.cpp: Removed.
        * kjs/JSWrapperObject.h: Removed.
        * kjs/MathObject.cpp: Removed.
        * kjs/MathObject.h: Removed.
        * kjs/NativeErrorConstructor.cpp: Removed.
        * kjs/NativeErrorConstructor.h: Removed.
        * kjs/NativeErrorPrototype.cpp: Removed.
        * kjs/NativeErrorPrototype.h: Removed.
        * kjs/NumberConstructor.cpp: Removed.
        * kjs/NumberConstructor.h: Removed.
        * kjs/NumberObject.cpp: Removed.
        * kjs/NumberObject.h: Removed.
        * kjs/NumberPrototype.cpp: Removed.
        * kjs/NumberPrototype.h: Removed.
        * kjs/ObjectConstructor.cpp: Removed.
        * kjs/ObjectConstructor.h: Removed.
        * kjs/ObjectPrototype.cpp: Removed.
        * kjs/ObjectPrototype.h: Removed.
        * kjs/PropertyMap.cpp: Removed.
        * kjs/PropertyMap.h: Removed.
        * kjs/PropertySlot.cpp: Removed.
        * kjs/PropertySlot.h: Removed.
        * kjs/PrototypeFunction.cpp: Removed.
        * kjs/PrototypeFunction.h: Removed.
        * kjs/PutPropertySlot.h: Removed.
        * kjs/SmallStrings.cpp: Removed.
        * kjs/SmallStrings.h: Removed.
        * kjs/StringConstructor.cpp: Removed.
        * kjs/StringConstructor.h: Removed.
        * kjs/StringObject.cpp: Removed.
        * kjs/StringObject.h: Removed.
        * kjs/StringObjectThatMasqueradesAsUndefined.h: Removed.
        * kjs/StringPrototype.cpp: Removed.
        * kjs/StringPrototype.h: Removed.
        * kjs/StructureID.cpp: Removed.
        * kjs/StructureID.h: Removed.
        * kjs/completion.h:
        * kjs/interpreter.h:
        * runtime: Added.
        * runtime/ArrayConstructor.cpp: Copied from kjs/ArrayConstructor.cpp.
        * runtime/ArrayConstructor.h: Copied from kjs/ArrayConstructor.h.
        * runtime/ArrayPrototype.cpp: Copied from kjs/ArrayPrototype.cpp.
        * runtime/ArrayPrototype.h: Copied from kjs/ArrayPrototype.h.
        * runtime/BooleanConstructor.cpp: Copied from kjs/BooleanConstructor.cpp.
        * runtime/BooleanConstructor.h: Copied from kjs/BooleanConstructor.h.
        * runtime/BooleanObject.cpp: Copied from kjs/BooleanObject.cpp.
        * runtime/BooleanObject.h: Copied from kjs/BooleanObject.h.
        * runtime/BooleanPrototype.cpp: Copied from kjs/BooleanPrototype.cpp.
        * runtime/BooleanPrototype.h: Copied from kjs/BooleanPrototype.h.
        * runtime/CallData.cpp: Copied from kjs/CallData.cpp.
        * runtime/CallData.h: Copied from kjs/CallData.h.
        * runtime/ClassInfo.h: Copied from kjs/ClassInfo.h.
        * runtime/ConstructData.cpp: Copied from kjs/ConstructData.cpp.
        * runtime/ConstructData.h: Copied from kjs/ConstructData.h.
        * runtime/DateConstructor.cpp: Copied from kjs/DateConstructor.cpp.
        * runtime/DateConstructor.h: Copied from kjs/DateConstructor.h.
        * runtime/DateInstance.cpp: Copied from kjs/DateInstance.cpp.
        * runtime/DateInstance.h: Copied from kjs/DateInstance.h.
        * runtime/DateMath.cpp: Copied from kjs/DateMath.cpp.
        * runtime/DateMath.h: Copied from kjs/DateMath.h.
        * runtime/DatePrototype.cpp: Copied from kjs/DatePrototype.cpp.
        * runtime/DatePrototype.h: Copied from kjs/DatePrototype.h.
        * runtime/Error.cpp: Copied from kjs/Error.cpp.
        * runtime/Error.h: Copied from kjs/Error.h.
        * runtime/ErrorConstructor.cpp: Copied from kjs/ErrorConstructor.cpp.
        * runtime/ErrorConstructor.h: Copied from kjs/ErrorConstructor.h.
        * runtime/ErrorInstance.cpp: Copied from kjs/ErrorInstance.cpp.
        * runtime/ErrorInstance.h: Copied from kjs/ErrorInstance.h.
        * runtime/ErrorPrototype.cpp: Copied from kjs/ErrorPrototype.cpp.
        * runtime/ErrorPrototype.h: Copied from kjs/ErrorPrototype.h.
        * runtime/FunctionConstructor.cpp: Copied from kjs/FunctionConstructor.cpp.
        * runtime/FunctionConstructor.h: Copied from kjs/FunctionConstructor.h.
        * runtime/FunctionPrototype.cpp: Copied from kjs/FunctionPrototype.cpp.
        * runtime/FunctionPrototype.h: Copied from kjs/FunctionPrototype.h.
        * runtime/GlobalEvalFunction.cpp: Copied from kjs/GlobalEvalFunction.cpp.
        * runtime/GlobalEvalFunction.h: Copied from kjs/GlobalEvalFunction.h.
        * runtime/InternalFunction.cpp: Copied from kjs/InternalFunction.cpp.
        * runtime/InternalFunction.h: Copied from kjs/InternalFunction.h.
        * runtime/JSArray.cpp: Copied from kjs/JSArray.cpp.
        * runtime/JSArray.h: Copied from kjs/JSArray.h.
        * runtime/JSCell.cpp: Copied from kjs/JSCell.cpp.
        * runtime/JSCell.h: Copied from kjs/JSCell.h.
        * runtime/JSFunction.cpp: Copied from kjs/JSFunction.cpp.
        * runtime/JSFunction.h: Copied from kjs/JSFunction.h.
        * runtime/JSGlobalObject.cpp: Copied from kjs/JSGlobalObject.cpp.
        * runtime/JSGlobalObject.h: Copied from kjs/JSGlobalObject.h.
        * runtime/JSGlobalObjectFunctions.cpp: Copied from kjs/JSGlobalObjectFunctions.cpp.
        * runtime/JSGlobalObjectFunctions.h: Copied from kjs/JSGlobalObjectFunctions.h.
        * runtime/JSImmediate.cpp: Copied from kjs/JSImmediate.cpp.
        * runtime/JSImmediate.h: Copied from kjs/JSImmediate.h.
        * runtime/JSNotAnObject.cpp: Copied from kjs/JSNotAnObject.cpp.
        * runtime/JSNotAnObject.h: Copied from kjs/JSNotAnObject.h.
        * runtime/JSNumberCell.cpp: Copied from kjs/JSNumberCell.cpp.
        * runtime/JSNumberCell.h: Copied from kjs/JSNumberCell.h.
        * runtime/JSObject.cpp: Copied from kjs/JSObject.cpp.
        * runtime/JSObject.h: Copied from kjs/JSObject.h.
        * runtime/JSString.cpp: Copied from kjs/JSString.cpp.
        * runtime/JSString.h: Copied from kjs/JSString.h.
        * runtime/JSValue.cpp: Copied from kjs/JSValue.cpp.
        * runtime/JSValue.h: Copied from kjs/JSValue.h.
        * runtime/JSVariableObject.cpp: Copied from kjs/JSVariableObject.cpp.
        * runtime/JSVariableObject.h: Copied from kjs/JSVariableObject.h.
        * runtime/JSWrapperObject.cpp: Copied from kjs/JSWrapperObject.cpp.
        * runtime/JSWrapperObject.h: Copied from kjs/JSWrapperObject.h.
        * runtime/MathObject.cpp: Copied from kjs/MathObject.cpp.
        * runtime/MathObject.h: Copied from kjs/MathObject.h.
        * runtime/NativeErrorConstructor.cpp: Copied from kjs/NativeErrorConstructor.cpp.
        * runtime/NativeErrorConstructor.h: Copied from kjs/NativeErrorConstructor.h.
        * runtime/NativeErrorPrototype.cpp: Copied from kjs/NativeErrorPrototype.cpp.
        * runtime/NativeErrorPrototype.h: Copied from kjs/NativeErrorPrototype.h.
        * runtime/NumberConstructor.cpp: Copied from kjs/NumberConstructor.cpp.
        * runtime/NumberConstructor.h: Copied from kjs/NumberConstructor.h.
        * runtime/NumberObject.cpp: Copied from kjs/NumberObject.cpp.
        * runtime/NumberObject.h: Copied from kjs/NumberObject.h.
        * runtime/NumberPrototype.cpp: Copied from kjs/NumberPrototype.cpp.
        * runtime/NumberPrototype.h: Copied from kjs/NumberPrototype.h.
        * runtime/ObjectConstructor.cpp: Copied from kjs/ObjectConstructor.cpp.
        * runtime/ObjectConstructor.h: Copied from kjs/ObjectConstructor.h.
        * runtime/ObjectPrototype.cpp: Copied from kjs/ObjectPrototype.cpp.
        * runtime/ObjectPrototype.h: Copied from kjs/ObjectPrototype.h.
        * runtime/PropertyMap.cpp: Copied from kjs/PropertyMap.cpp.
        * runtime/PropertyMap.h: Copied from kjs/PropertyMap.h.
        * runtime/PropertySlot.cpp: Copied from kjs/PropertySlot.cpp.
        * runtime/PropertySlot.h: Copied from kjs/PropertySlot.h.
        * runtime/PrototypeFunction.cpp: Copied from kjs/PrototypeFunction.cpp.
        * runtime/PrototypeFunction.h: Copied from kjs/PrototypeFunction.h.
        * runtime/PutPropertySlot.h: Copied from kjs/PutPropertySlot.h.
        * runtime/SmallStrings.cpp: Copied from kjs/SmallStrings.cpp.
        * runtime/SmallStrings.h: Copied from kjs/SmallStrings.h.
        * runtime/StringConstructor.cpp: Copied from kjs/StringConstructor.cpp.
        * runtime/StringConstructor.h: Copied from kjs/StringConstructor.h.
        * runtime/StringObject.cpp: Copied from kjs/StringObject.cpp.
        * runtime/StringObject.h: Copied from kjs/StringObject.h.
        * runtime/StringObjectThatMasqueradesAsUndefined.h: Copied from kjs/StringObjectThatMasqueradesAsUndefined.h.
        * runtime/StringPrototype.cpp: Copied from kjs/StringPrototype.cpp.
        * runtime/StringPrototype.h: Copied from kjs/StringPrototype.h.
        * runtime/StructureID.cpp: Copied from kjs/StructureID.cpp.
        * runtime/StructureID.h: Copied from kjs/StructureID.h.

2008-10-28  Geoffrey Garen  <ggaren@apple.com>

        Reviewed by Sam Weinig.
        
        Fixed https://bugs.webkit.org/show_bug.cgi?id=21919
        Sampler reports bogus time in op_enter during 3d-raytrace.js
        
        Fixed a bug where we would pass the incorrect Instruction* during some
        parts of CTI codegen.

        * VM/CTI.cpp:
        (JSC::CTI::privateCompileMainPass):
        (JSC::CTI::privateCompileSlowCases):
        * VM/SamplingTool.cpp:
        (JSC::SamplingTool::run):
        * wtf/Platform.h:

2008-10-28  Kevin McCullough  <kmccullough@apple.com>

        Reviewed by Dan Bernstein.

        -Removed unused includes.
        Apparent .4% speedup in Sunspider

        * kjs/JSObject.cpp:
        * kjs/interpreter.cpp:

2008-10-28  Alp Toker  <alp@nuanti.com>

        Include copyright license files in the autotools dist target.

        Change suggested by Mike Hommey.

        * GNUmakefile.am:

2008-10-27  Geoffrey Garen  <ggaren@apple.com>

        Reviewed by Maciej Stachowiak.
        
        Stop discarding CodeBlock samples that can't be charged to a specific
        opcode. Instead, charge the relevant CodeBlock, and provide a footnote
        explaining the situation.
        
        This will help us tell which CodeBlocks are hot, even if we can't
        identify specific lines of code within the CodeBlocks.

        * VM/SamplingTool.cpp:
        (JSC::ScopeSampleRecord::sample):
        (JSC::compareScopeSampleRecords):
        (JSC::SamplingTool::dump):

        * VM/SamplingTool.h:
        (JSC::ScopeSampleRecord::ScopeSampleRecord):
        (JSC::ScopeSampleRecord::~ScopeSampleRecord):

2008-10-27  Geoffrey Garen  <ggaren@apple.com>

        Reviewed by Sam Weinig.
        
        Added a mutex around the SamplingTool's ScopeNode* map, to solve a crash
        when sampling the v8 tests.

        * VM/SamplingTool.cpp:
        (JSC::SamplingTool::run):
        (JSC::SamplingTool::notifyOfScope):
        * VM/SamplingTool.h: Since new ScopeNodes can be created after
        the SamplingTools has begun sampling, reads and writes to / from the
        map need to be synchronized. Shark says this doesn't measurably increase
        sampling overhead.

2008-10-25  Geoffrey Garen  <ggaren@apple.com>

        Not reviewed.
        
        Try to fix Windows build.

        * VM/Machine.cpp:
        (JSC::Machine::privateExecute): Provide a dummy value to the
        HostCallRecord in CTI non-sampling builds, to silence compiler warning.

2008-10-25  Geoffrey Garen  <ggaren@apple.com>

        Not reviewed.
        
        Try to fix Windows build.

        * VM/SamplingTool.h:
        (JSC::SamplingTool::encodeSample): Explicitly cast bool to int, to
        silence compiler warning.

2008-10-25  Geoffrey Garen  <ggaren@apple.com>

        Reviewed by Sam Weinig, with Gavin Barraclough's help.
        
        Fixed Sampling Tool:
            - Made CodeBlock sampling work with CTI
            - Improved accuracy by unifying most sampling data into a single
              32bit word, which can be written / read atomically.
            - Split out three different #ifdefs for modularity: OPCODE_SAMPLING;
              CODEBLOCK_SAMPLING; OPCODE_STATS.
            - Improved reporting clarity
            - Refactored for code clarity

        * JavaScriptCore.exp: Exported another symbol.

        * VM/CTI.cpp:
        (JSC::CTI::emitCTICall):
        (JSC::CTI::compileOpCall):
        (JSC::CTI::emitSlowScriptCheck):
        (JSC::CTI::compileBinaryArithOpSlowCase):
        (JSC::CTI::privateCompileMainPass):
        (JSC::CTI::privateCompileSlowCases):
        (JSC::CTI::privateCompile):
        * VM/CTI.h: Updated CTI codegen to use the unified SamplingTool interface
        for encoding samples. (This required passing the current vPC to a lot
        more functions, since the unified interface samples the current vPC.)
        Added hooks for writing the current CodeBlock* on function entry and
        after a function call, for the sake of the CodeBlock sampler. Removed
        obsolete hook for clearing the current sample inside op_end. Also removed
        the custom enum used to differentiate flavors of op_call, since the
        OpcodeID enum works just as well. (This was important in an earlier
        version of the patch, but now it's just cleanup.)

        * VM/CodeBlock.cpp:
        (JSC::CodeBlock::lineNumberForVPC):
        * VM/CodeBlock.h: Upated for refactored #ifdefs. Changed lineNumberForVPC
        to be robust against vPCs not recorded for exception handling, since
        the Sampler may ask for an arbitrary vPC.

        * VM/Machine.cpp:
        (JSC::Machine::execute):
        (JSC::Machine::privateExecute):
        (JSC::Machine::cti_op_call_NotJSFunction):
        (JSC::Machine::cti_op_construct_NotJSConstruct):
        * VM/Machine.h:
        (JSC::Machine::setSampler):
        (JSC::Machine::sampler):
        (JSC::Machine::jitCodeBuffer): Upated for refactored #ifdefs. Changed
        Machine to use SamplingTool helper objects to record movement in and
        out of host code. This makes samples a bit more precise.
        
        * VM/Opcode.cpp:
        (JSC::OpcodeStats::~OpcodeStats):
        * VM/Opcode.h: Upated for refactored #ifdefs. Added a little more padding,
        to accomodate our more verbose opcode names.

        * VM/SamplingTool.cpp:
        (JSC::ScopeSampleRecord::sample): Only count a sample toward our total
        if we actually record it. This solves cases where a CodeBlock will
        claim to have been sampled many times, with reported samples that don't
        match.

        (JSC::SamplingTool::run): Read the current sample into a Sample helper
        object, to ensure that the data doesn't change while we're analyzing it,
        and to help decode the data. Only access the CodeBlock sampling hash
        table if CodeBlock sampling has been enabled, so non-CodeBlock sampling
        runs can operate with even less overhead.

        (JSC::SamplingTool::dump): I reorganized this code a lot to print the
        most important info at the top, print as a table, annotate and document
        the stuff I didn't understand when I started, etc.

        * VM/SamplingTool.h: New helper classes, described above.

        * kjs/Parser.h:
        * kjs/Shell.cpp:
        (runWithScripts):
        * kjs/nodes.cpp:
        (JSC::ScopeNode::ScopeNode): Updated for new sampling APIs.

        * wtf/Platform.h: Moved sampling #defines here, since our custom is to
        put ENABLE #defines into Platform.h. Made explicit the fact that
        CODEBLOCK_SAMPLING depends on OPCODE_SAMPLING.

2008-10-25  Jan Michael Alonzo  <jmalonzo@webkit.org>

        JSC Build fix, not reviewed.

        * VM/CTI.cpp: add missing include stdio.h for debug builds

2008-10-24  Eric Seidel  <eric@webkit.org>

        Reviewed by Darin Adler.
        
        Get rid of a bonus ASSERT when using a null string as a regexp.
        Specifically calling: RegularExpression::match() with String::empty()
        will hit this ASSERT.
        Chromium hits this, but I don't know of any way to make a layout test.

        * pcre/pcre_exec.cpp:
        (jsRegExpExecute):

2008-10-24  Alexey Proskuryakov  <ap@webkit.org>

        Suggested and rubber-stamped by Geoff Garen.

        Fix a crash when opening Font Picker.

        The change also hopefully fixes this bug, which I could never reproduce:
        https://bugs.webkit.org/show_bug.cgi?id=20241
        <rdar://problem/6290576> Safari crashes at JSValueUnprotect() when fontpicker view close

        * API/JSContextRef.cpp: (JSContextGetGlobalObject): Use lexical global object instead of
        dynamic one.

2008-10-24  Cameron Zwarich  <zwarich@apple.com>

        Reviewed by Geoff Garen.

        Remove ScopeChainNode::bottom() and inline it into its only caller,
        ScopeChainnode::globalObject().

        * kjs/JSGlobalObject.h:
        (JSC::ScopeChainNode::globalObject):
        * kjs/ScopeChain.h:
        (JSC::ScopeChain::bottom):

2008-10-24  Cameron Zwarich  <zwarich@apple.com>

        Reviewed by Maciej Stachowiak.

        Bug 21862: Create JSFunction prototype property lazily
        <https://bugs.webkit.org/show_bug.cgi?id=21862>

        This is a 1.5% speedup on SunSpider and a 1.4% speedup on the V8
        benchmark suite, including a 3.8% speedup on Earley-Boyer.

        * kjs/JSFunction.cpp:
        (JSC::JSFunction::getOwnPropertySlot):
        * kjs/nodes.cpp:
        (JSC::FuncDeclNode::makeFunction):
        (JSC::FuncExprNode::makeFunction):

2008-10-24  Greg Bolsinga  <bolsinga@apple.com>

        Reviewed by Sam Weinig.

        https://bugs.webkit.org/show_bug.cgi?id=21475
        
        Provide support for the Geolocation API
        
        http://dev.w3.org/geo/api/spec-source.html

        * wtf/Platform.h: ENABLE_GEOLOCATION defaults to 0

2008-10-24  Darin Adler  <darin@apple.com>

        - finish rolling out https://bugs.webkit.org/show_bug.cgi?id=21732

        * API/APICast.h:
        * API/JSCallbackConstructor.h:
        * API/JSCallbackFunction.cpp:
        * API/JSCallbackFunction.h:
        * API/JSCallbackObject.h:
        * API/JSCallbackObjectFunctions.h:
        * API/JSContextRef.cpp:
        * API/JSObjectRef.cpp:
        * API/JSValueRef.cpp:
        * VM/CTI.cpp:
        * VM/CTI.h:
        * VM/CodeBlock.cpp:
        * VM/CodeBlock.h:
        * VM/CodeGenerator.cpp:
        * VM/CodeGenerator.h:
        * VM/ExceptionHelpers.cpp:
        * VM/ExceptionHelpers.h:
        * VM/JSPropertyNameIterator.cpp:
        * VM/JSPropertyNameIterator.h:
        * VM/Machine.cpp:
        * VM/Machine.h:
        * VM/Register.h:
        * kjs/ArgList.cpp:
        * kjs/ArgList.h:
        * kjs/Arguments.cpp:
        * kjs/Arguments.h:
        * kjs/ArrayConstructor.cpp:
        * kjs/ArrayPrototype.cpp:
        * kjs/BooleanConstructor.cpp:
        * kjs/BooleanConstructor.h:
        * kjs/BooleanObject.h:
        * kjs/BooleanPrototype.cpp:
        * kjs/CallData.cpp:
        * kjs/CallData.h:
        * kjs/ConstructData.cpp:
        * kjs/ConstructData.h:
        * kjs/DateConstructor.cpp:
        * kjs/DateInstance.h:
        * kjs/DatePrototype.cpp:
        * kjs/DatePrototype.h:
        * kjs/DebuggerCallFrame.cpp:
        * kjs/DebuggerCallFrame.h:
        * kjs/ErrorConstructor.cpp:
        * kjs/ErrorPrototype.cpp:
        * kjs/ExecState.cpp:
        * kjs/ExecState.h:
        * kjs/FunctionConstructor.cpp:
        * kjs/FunctionPrototype.cpp:
        * kjs/FunctionPrototype.h:
        * kjs/GetterSetter.cpp:
        * kjs/GetterSetter.h:
        * kjs/InternalFunction.h:
        * kjs/JSActivation.cpp:
        * kjs/JSActivation.h:
        * kjs/JSArray.cpp:
        * kjs/JSArray.h:
        * kjs/JSCell.cpp:
        * kjs/JSCell.h:
        * kjs/JSFunction.cpp:
        * kjs/JSFunction.h:
        * kjs/JSGlobalData.h:
        * kjs/JSGlobalObject.cpp:
        * kjs/JSGlobalObject.h:
        * kjs/JSGlobalObjectFunctions.cpp:
        * kjs/JSGlobalObjectFunctions.h:
        * kjs/JSImmediate.cpp:
        * kjs/JSImmediate.h:
        * kjs/JSNotAnObject.cpp:
        * kjs/JSNotAnObject.h:
        * kjs/JSNumberCell.cpp:
        * kjs/JSNumberCell.h:
        * kjs/JSObject.cpp:
        * kjs/JSObject.h:
        * kjs/JSStaticScopeObject.cpp:
        * kjs/JSStaticScopeObject.h:
        * kjs/JSString.cpp:
        * kjs/JSString.h:
        * kjs/JSValue.h:
        * kjs/JSVariableObject.h:
        * kjs/JSWrapperObject.h:
        * kjs/MathObject.cpp:
        * kjs/MathObject.h:
        * kjs/NativeErrorConstructor.cpp:
        * kjs/NumberConstructor.cpp:
        * kjs/NumberConstructor.h:
        * kjs/NumberObject.cpp:
        * kjs/NumberObject.h:
        * kjs/NumberPrototype.cpp:
        * kjs/ObjectConstructor.cpp:
        * kjs/ObjectPrototype.cpp:
        * kjs/ObjectPrototype.h:
        * kjs/PropertyMap.h:
        * kjs/PropertySlot.cpp:
        * kjs/PropertySlot.h:
        * kjs/RegExpConstructor.cpp:
        * kjs/RegExpConstructor.h:
        * kjs/RegExpMatchesArray.h:
        * kjs/RegExpObject.cpp:
        * kjs/RegExpObject.h:
        * kjs/RegExpPrototype.cpp:
        * kjs/Shell.cpp:
        * kjs/StringConstructor.cpp:
        * kjs/StringObject.cpp:
        * kjs/StringObject.h:
        * kjs/StringObjectThatMasqueradesAsUndefined.h:
        * kjs/StringPrototype.cpp:
        * kjs/StructureID.cpp:
        * kjs/StructureID.h:
        * kjs/collector.cpp:
        * kjs/collector.h:
        * kjs/completion.h:
        * kjs/grammar.y:
        * kjs/interpreter.cpp:
        * kjs/interpreter.h:
        * kjs/lookup.cpp:
        * kjs/lookup.h:
        * kjs/nodes.h:
        * kjs/operations.cpp:
        * kjs/operations.h:
        * kjs/protect.h:
        * profiler/ProfileGenerator.cpp:
        * profiler/Profiler.cpp:
        * profiler/Profiler.h:
        Use JSValue* instead of JSValuePtr.

2008-10-24  David Kilzer  <ddkilzer@apple.com>

        Rolled out r37840.

        * wtf/Platform.h:

2008-10-23  Greg Bolsinga  <bolsinga@apple.com>

        Reviewed by Sam Weinig.

        https://bugs.webkit.org/show_bug.cgi?id=21475
        
        Provide support for the Geolocation API
        
        http://dev.w3.org/geo/api/spec-source.html

        * wtf/Platform.h: ENABLE_GEOLOCATION defaults to 0

2008-10-23  David Kilzer  <ddkilzer@apple.com>

        Bug 21832: Fix scripts using 'new File::Temp' for Perl 5.10

        <https://bugs.webkit.org/show_bug.cgi?id=21832>

        Reviewed by Sam Weinig.

        * pcre/dftables: Use imported tempfile() from File::Temp instead of
        'new File::Temp' to make the script work with Perl 5.10.

2008-10-23  Gavin Barraclough  <barraclough@apple.com>

        Reviewed by Oliver Hunt.

        Fix hideous pathological case performance when looking up repatch info, bug #21727.

        When repatching JIT code to optimize we look up records providing information about
        the generated code (also used to track recsources used in linking to be later released). 
        The lookup was being performed using a linear scan of all such records.

        (1) Split up the different types of reptach information.  This means we can search them
            separately, and in some cases should reduce their size.
        (2) In the case of property accesses, search with a binary chop over the data.
        (3) In the case of calls, pass a pointer to the repatch info into the relink function.

        * VM/CTI.cpp:
        (JSC::CTI::CTI):
        (JSC::CTI::compileOpCall):
        (JSC::CTI::privateCompileMainPass):
        (JSC::CTI::privateCompileSlowCases):
        (JSC::CTI::privateCompile):
        (JSC::CTI::unlinkCall):
        (JSC::CTI::linkCall):
        * VM/CTI.h:
        * VM/CodeBlock.cpp:
        (JSC::CodeBlock::dump):
        (JSC::CodeBlock::~CodeBlock):
        (JSC::CodeBlock::unlinkCallers):
        (JSC::CodeBlock::derefStructureIDs):
        * VM/CodeBlock.h:
        (JSC::StructureStubInfo::StructureStubInfo):
        (JSC::CallLinkInfo::CallLinkInfo):
        (JSC::CallLinkInfo::setUnlinked):
        (JSC::CallLinkInfo::isLinked):
        (JSC::getStructureStubInfoReturnLocation):
        (JSC::binaryChop):
        (JSC::CodeBlock::addCaller):
        (JSC::CodeBlock::getStubInfo):
        * VM/CodeGenerator.cpp:
        (JSC::CodeGenerator::emitResolve):
        (JSC::CodeGenerator::emitGetById):
        (JSC::CodeGenerator::emitPutById):
        (JSC::CodeGenerator::emitCall):
        (JSC::CodeGenerator::emitConstruct):
        * VM/Machine.cpp:
        (JSC::Machine::cti_vm_lazyLinkCall):

2008-10-23  Peter Kasting  <pkasting@google.com>

        Reviewed by Adam Roben.

        https://bugs.webkit.org/show_bug.cgi?id=21833
        Place JavaScript Debugger hooks under #if ENABLE(JAVASCRIPT_DEBUGGER).

        * wtf/Platform.h:

2008-10-23  David Kilzer  <ddkilzer@apple.com>

        Bug 21831: Fix create_hash_table for Perl 5.10

        <https://bugs.webkit.org/show_bug.cgi?id=21831>

        Reviewed by Sam Weinig.

        * kjs/create_hash_table: Escaped square brackets so that Perl 5.10
        doesn't try to use @nameEntries.

2008-10-23  Darin Adler  <darin@apple.com>

        - roll out https://bugs.webkit.org/show_bug.cgi?id=21732
          to remove the JSValuePtr class, to fix two problems

            1) slowness under MSVC, since it doesn't handle a
               class with a single pointer in it as efficiently
               as a pointer

            2) uninitialized pointers in Vector

        * JavaScriptCore.exp: Updated.

        * API/APICast.h:
        (toRef):
        * VM/CTI.cpp:
        (JSC::CTI::asInteger):
        * VM/CodeGenerator.cpp:
        (JSC::CodeGenerator::addConstant):
        * VM/CodeGenerator.h:
        (JSC::CodeGenerator::JSValueHashTraits::constructDeletedValue):
        (JSC::CodeGenerator::JSValueHashTraits::isDeletedValue):
        * VM/Machine.cpp:
        (JSC::Machine::cti_op_add):
        (JSC::Machine::cti_op_pre_inc):
        (JSC::Machine::cti_op_get_by_id):
        (JSC::Machine::cti_op_get_by_id_second):
        (JSC::Machine::cti_op_get_by_id_generic):
        (JSC::Machine::cti_op_get_by_id_fail):
        (JSC::Machine::cti_op_instanceof):
        (JSC::Machine::cti_op_del_by_id):
        (JSC::Machine::cti_op_mul):
        (JSC::Machine::cti_op_call_NotJSFunction):
        (JSC::Machine::cti_op_resolve):
        (JSC::Machine::cti_op_construct_NotJSConstruct):
        (JSC::Machine::cti_op_get_by_val):
        (JSC::Machine::cti_op_sub):
        (JSC::Machine::cti_op_lesseq):
        (JSC::Machine::cti_op_negate):
        (JSC::Machine::cti_op_resolve_base):
        (JSC::Machine::cti_op_resolve_skip):
        (JSC::Machine::cti_op_resolve_global):
        (JSC::Machine::cti_op_div):
        (JSC::Machine::cti_op_pre_dec):
        (JSC::Machine::cti_op_not):
        (JSC::Machine::cti_op_eq):
        (JSC::Machine::cti_op_lshift):
        (JSC::Machine::cti_op_bitand):
        (JSC::Machine::cti_op_rshift):
        (JSC::Machine::cti_op_bitnot):
        (JSC::Machine::cti_op_mod):
        (JSC::Machine::cti_op_less):
        (JSC::Machine::cti_op_neq):
        (JSC::Machine::cti_op_urshift):
        (JSC::Machine::cti_op_bitxor):
        (JSC::Machine::cti_op_bitor):
        (JSC::Machine::cti_op_call_eval):
        (JSC::Machine::cti_op_throw):
        (JSC::Machine::cti_op_next_pname):
        (JSC::Machine::cti_op_typeof):
        (JSC::Machine::cti_op_is_undefined):
        (JSC::Machine::cti_op_is_boolean):
        (JSC::Machine::cti_op_is_number):
        (JSC::Machine::cti_op_is_string):
        (JSC::Machine::cti_op_is_object):
        (JSC::Machine::cti_op_is_function):
        (JSC::Machine::cti_op_stricteq):
        (JSC::Machine::cti_op_nstricteq):
        (JSC::Machine::cti_op_to_jsnumber):
        (JSC::Machine::cti_op_in):
        (JSC::Machine::cti_op_del_by_val):
        (JSC::Machine::cti_vm_throw):
        Removed calls to payload functions.

        * VM/Register.h:
        (JSC::Register::Register): Removed overload for JSCell and call
        to payload function.

        * kjs/JSCell.h: Changed JSCell to derive from JSValue again.
        Removed JSValuePtr constructor.
        (JSC::asCell): Changed cast from reinterpret_cast to static_cast.

        * kjs/JSImmediate.h: Removed JSValuePtr class. Added typedef back.

        * kjs/JSValue.h:
        (JSC::JSValue::JSValue): Added empty protected inline constructor back.
        (JSC::JSValue::~JSValue): Same for destructor.
        Removed == and != operator for JSValuePtr.

        * kjs/PropertySlot.h:
        (JSC::PropertySlot::PropertySlot): Chnaged argument to const JSValue*
        and added a const_cast.

        * kjs/protect.h: Removed overloads and specialization for JSValuePtr.

2008-10-22  Oliver Hunt  <oliver@apple.com>

        Reviewed by Maciej Stachowiak.

        Really "fix" CTI mode on windows 2k3.

        This adds new methods fastMallocExecutable and fastFreeExecutable
        to wrap allocation for cti code.  This still just makes fastMalloc
        return executable memory all the time, which will be fixed in a
        later patch.

        However in windows debug builds all executable allocations will be
        allocated on separate executable pages, which should resolve any
        remaining 2k3 issues.  Conveniently the 2k3 bot will now also fail
        if there are any fastFree vs. fastFreeExecutable errors.

        * ChangeLog:
        * VM/CodeBlock.cpp:
        (JSC::CodeBlock::~CodeBlock):
        * kjs/regexp.cpp:
        (JSC::RegExp::~RegExp):
        * masm/X86Assembler.h:
        (JSC::JITCodeBuffer::copy):
        * wtf/FastMalloc.cpp:
        (WTF::fastMallocExecutable):
        (WTF::fastFreeExecutable):
        (WTF::TCMallocStats::fastMallocExecutable):
        (WTF::TCMallocStats::fastFreeExecutable):
        * wtf/FastMalloc.h:

2008-10-22  Darin Adler  <darin@apple.com>

        Reviewed by Sam Weinig.

        - fix https://bugs.webkit.org/show_bug.cgi?id=21294
          Bug 21294: Devirtualize getOwnPropertySlot()

        A bit over 3% faster on V8 tests.

        * JavascriptCore.exp: Export leak-related functions..

        * API/JSCallbackConstructor.h:
        (JSC::JSCallbackConstructor::createStructureID): Set HasStandardGetOwnPropertySlot
        since this class doesn't override getPropertySlot.
        * API/JSCallbackFunction.h:
        (JSC::JSCallbackFunction::createStructureID): Ditto.

        * VM/ExceptionHelpers.cpp:
        (JSC::InterruptedExecutionError::InterruptedExecutionError): Use a structure
        that's created just for this class instead of trying to share a single "null
        prototype" structure.

        * VM/Machine.cpp:
        (JSC::Machine::cti_op_create_arguments_no_params): Rename
        Arguments::ArgumentsNoParameters to Arguments::NoParameters.
        
        * kjs/Arguments.h: Rename the enum from Arguments::ArgumentsParameters to
        Arguments::NoParametersType and the value from Arguments::ArgumentsNoParameters
        to Arguments::NoParameters.
        (JSC::Arguments::createStructureID): Added. Returns a structure without
        HasStandardGetOwnPropertySlot since this class overrides getOwnPropertySlot.
        (JSC::Arguments::Arguments): Added an assertion that there are no parameters.

        * kjs/DatePrototype.h:
        (JSC::DatePrototype::createStructureID): Added. Returns a structure without
        HasStandardGetOwnPropertySlot since this class overrides getOwnPropertySlot.

        * kjs/FunctionPrototype.h:
        (JSC::FunctionPrototype::createStructureID): Set HasStandardGetOwnPropertySlot
        since this class doesn't override getPropertySlot.
        * kjs/InternalFunction.h:
        (JSC::InternalFunction::createStructureID): Ditto.

        * kjs/JSArray.h:
        (JSC::JSArray::createStructureID): Added. Returns a structure without
        HasStandardGetOwnPropertySlot since this class overrides getOwnPropertySlot.

        * kjs/JSCell.h: Added declaration of fastGetOwnPropertySlot; a non-virtual
        version that uses the structure bit to decide whether to call the virtual
        version.

        * kjs/JSFunction.h:
        (JSC::JSFunction::createStructureID): Added. Returns a structure without
        HasStandardGetOwnPropertySlot since this class overrides getOwnPropertySlot.

        * kjs/JSGlobalData.cpp:
        (JSC::JSGlobalData::JSGlobalData): Initialize new structures; removed
        nullProtoStructureID.
        * kjs/JSGlobalData.h: Added new structures. Removed nullProtoStructureID.

        * kjs/JSGlobalObject.h:
        (JSC::JSGlobalObject::createStructureID): Added. Returns a structure without
        HasStandardGetOwnPropertySlot since this class overrides getOwnPropertySlot.

        * kjs/JSNotAnObject.h:
        (JSC::JSNotAnObjectErrorStub::JSNotAnObjectErrorStub): Use a structure
        that's created just for this class instead of trying to share a single "null
        prototype" structure.
        (JSC::JSNotAnObjectErrorStub::isNotAnObjectErrorStub): Marked this function
        virtual for clarity and made it private since no one should call it if they
        already have a pointer to this specific type.
        (JSC::JSNotAnObject::JSNotAnObject): Use a structure that's created just
        for this class instead of trying to share a single "null prototype" structure.
        (JSC::JSNotAnObject::createStructureID): Added. Returns a structure without
        HasStandardGetOwnPropertySlot since this class overrides getOwnPropertySlot.

        * kjs/JSObject.h:
        (JSC::JSObject::createStructureID): Added HasStandardGetOwnPropertySlot.
        (JSC::JSObject::inlineGetOwnPropertySlot): Added. Used so we can share code
        between getOwnPropertySlot and fastGetOwnPropertySlot.
        (JSC::JSObject::getOwnPropertySlot): Moved so that functions are above the
        functions that call them. Moved the guts of this function into
        inlineGetOwnPropertySlot.
        (JSC::JSCell::fastGetOwnPropertySlot): Added. Checks the
        HasStandardGetOwnPropertySlot bit and if it's set, calls
        inlineGetOwnPropertySlot, otherwise calls getOwnPropertySlot.
        (JSC::JSObject::getPropertySlot): Changed to call fastGetOwnPropertySlot.
        (JSC::JSValue::get): Changed to call fastGetOwnPropertySlot.

        * kjs/JSWrapperObject.h: Made constructor protected to emphasize that
        this class is only a base class and never instantiated.

        * kjs/MathObject.h:
        (JSC::MathObject::createStructureID): Added. Returns a structure without
        HasStandardGetOwnPropertySlot since this class overrides getOwnPropertySlot.
        * kjs/NumberConstructor.h:
        (JSC::NumberConstructor::createStructureID): Ditto.
        * kjs/RegExpConstructor.h:
        (JSC::RegExpConstructor::createStructureID): Ditto.
        * kjs/RegExpObject.h:
        (JSC::RegExpObject::createStructureID): Ditto.
        * kjs/StringObject.h:
        (JSC::StringObject::createStructureID): Ditto.

        * kjs/TypeInfo.h: Added HasStandardGetOwnPropertySlot flag and
        hasStandardGetOwnPropertySlot accessor function.

2008-10-22  Cameron Zwarich  <zwarich@apple.com>

        Reviewed by Geoff Garen.

        Bug 21803: Fuse op_jfalse with op_eq_null and op_neq_null
        <https://bugs.webkit.org/show_bug.cgi?id=21803>

        Fuse op_jfalse with op_eq_null and op_neq_null to make the new opcodes
        op_jeq_null and op_jneq_null.

        This is a 2.6% speedup on the V8 Raytrace benchmark, and strangely also
        a 4.7% speedup on the V8 Arguments benchmark, even though it uses
        neither of the two new opcodes.

        * VM/CTI.cpp:
        (JSC::CTI::privateCompileMainPass):
        * VM/CodeBlock.cpp:
        (JSC::CodeBlock::dump):
        * VM/CodeGenerator.cpp:
        (JSC::CodeGenerator::emitJumpIfTrue):
        (JSC::CodeGenerator::emitJumpIfFalse):
        * VM/Machine.cpp:
        (JSC::Machine::privateExecute):
        * VM/Opcode.h:

2008-10-22  Darin Fisher  <darin@chromium.org>

        Reviewed by Eric Seidel.

        Should not define PLATFORM(WIN,MAC,GTK) when PLATFORM(CHROMIUM) is defined
        https://bugs.webkit.org/show_bug.cgi?id=21757

        PLATFORM(CHROMIUM) implies HAVE_ACCESSIBILITY

        * wtf/Platform.h:

2008-10-22  Cameron Zwarich  <zwarich@apple.com>

        Reviewed by Alexey Proskuryakov.

        Correct opcode names in documentation.

        * VM/Machine.cpp:
        (JSC::Machine::privateExecute):

2008-10-21  Oliver Hunt <oliver@apple.com>

        RS=Maciej Stachowiak.

        Force FastMalloc to make all allocated pages executable in
        a vague hope this will allow the Win2k3 bot to be able to
        run tests.

        Filed Bug 21783: Need more granular control over allocation of executable memory
        to cover a more granular version of this patch.

        * wtf/TCSystemAlloc.cpp:
        (TryVirtualAlloc):

2008-10-21  Alexey Proskuryakov  <ap@webkit.org>

        Reviewed by Darin Adler.

        https://bugs.webkit.org/show_bug.cgi?id=21769
        MessagePort should be GC protected if there are messages to be delivered

        * wtf/MessageQueue.h:
        (WTF::::isEmpty): Added. Also added a warning for methods that return a snapshot of queue
        state, thus likely to cause race conditions.

2008-10-21  Darin Adler  <darin@apple.com>

        Reviewed by Maciej Stachowiak.

        - convert post-increment to pre-increment in a couple more places for speed

        Speeds up V8 benchmarks a little on most computers. (But, strangely, slows
        them down a little on my computer.)

        * kjs/nodes.cpp:
        (JSC::statementListEmitCode): Removed default argument, since we always want
        to specify this explicitly.
        (JSC::ForNode::emitCode): Tolerate ignoredResult() as the dst -- means the
        same thing as 0.
        (JSC::ReturnNode::emitCode): Ditto.
        (JSC::ThrowNode::emitCode): Ditto.
        (JSC::FunctionBodyNode::emitCode): Pass ignoredResult() so that we know we
        don't have to compute the result of function statements.

2008-10-21  Peter Kasting  <pkasting@google.com>

        Reviewed by Maciej Stachowiak.

        Fix an include of a non-public header to use "" instead of <>.

        * API/JSProfilerPrivate.cpp:

2008-10-20  Sam Weinig  <sam@webkit.org>

        Reviewed by Cameron Zwarich.

        Fix for https://bugs.webkit.org/show_bug.cgi?id=21766
        REGRESSION: 12 JSC tests fail

        The JSGlobalObject was mutating the shared nullProtoStructureID when
        used in jsc.  Instead of using nullProtoStructureID, use a new StructureID.

        * API/JSCallbackObject.h:
        * API/JSCallbackObjectFunctions.h:
        (JSC::::JSCallbackObject):
        * API/JSContextRef.cpp:
        (JSGlobalContextCreateInGroup):
        * kjs/JSGlobalObject.h:
        (JSC::JSGlobalObject::JSGlobalObject):
        * kjs/Shell.cpp:
        (GlobalObject::GlobalObject):
        (jscmain):

2008-10-20  Cameron Zwarich  <zwarich@apple.com>

        Reviewed by Maciej Stachowiak.

        Remove an untaken branch in CodeGenerator::emitJumpIfFalse(). This
        function is never called with a backwards target LabelID, and there is
        even an assertion to this effect at the top of the function body.

        * VM/CodeGenerator.cpp:
        (JSC::CodeGenerator::emitJumpIfFalse):

2008-10-20  Cameron Zwarich  <zwarich@apple.com>

        Rubber-stamped by Sam Weinig.

        Add opcode documentation for undocumented opcodes.

        * VM/Machine.cpp:
        (JSC::Machine::privateExecute):

2008-10-16  Sam Weinig  <sam@webkit.org>

        Reviewed by Cameron Zwarich.

        Fix for https://bugs.webkit.org/show_bug.cgi?id=21683
        Don't create intermediate StructureIDs for builtin objects

        Second stage in reduce number of StructureIDs created when initializing the
        JSGlobalObject.

        - Use putDirectWithoutTransition for the remaining singleton objects to reduce
          the number of StructureIDs create for about:blank from 132 to 73.

        * kjs/ArrayConstructor.cpp:
        (JSC::ArrayConstructor::ArrayConstructor):
        * kjs/BooleanConstructor.cpp:
        (JSC::BooleanConstructor::BooleanConstructor):
        * kjs/BooleanPrototype.cpp:
        (JSC::BooleanPrototype::BooleanPrototype):
        * kjs/DateConstructor.cpp:
        (JSC::DateConstructor::DateConstructor):
        * kjs/ErrorConstructor.cpp:
        (JSC::ErrorConstructor::ErrorConstructor):
        * kjs/ErrorPrototype.cpp:
        (JSC::ErrorPrototype::ErrorPrototype):
        * kjs/FunctionConstructor.cpp:
        (JSC::FunctionConstructor::FunctionConstructor):
        * kjs/FunctionPrototype.cpp:
        (JSC::FunctionPrototype::FunctionPrototype):
        (JSC::FunctionPrototype::addFunctionProperties):
        * kjs/FunctionPrototype.h:
        (JSC::FunctionPrototype::createStructureID):
        * kjs/InternalFunction.cpp:
        * kjs/InternalFunction.h:
        (JSC::InternalFunction::InternalFunction):
        * kjs/JSGlobalObject.cpp:
        (JSC::JSGlobalObject::reset):
        * kjs/JSObject.h:
        * kjs/MathObject.cpp:
        (JSC::MathObject::MathObject):
        * kjs/NumberConstructor.cpp:
        (JSC::NumberConstructor::NumberConstructor):
        * kjs/NumberPrototype.cpp:
        (JSC::NumberPrototype::NumberPrototype):
        * kjs/ObjectConstructor.cpp:
        (JSC::ObjectConstructor::ObjectConstructor):
        * kjs/RegExpConstructor.cpp:
        (JSC::RegExpConstructor::RegExpConstructor):
        * kjs/RegExpPrototype.cpp:
        (JSC::RegExpPrototype::RegExpPrototype):
        * kjs/StringConstructor.cpp:
        (JSC::StringConstructor::StringConstructor):
        * kjs/StringPrototype.cpp:
        (JSC::StringPrototype::StringPrototype):
        * kjs/StructureID.cpp:
        (JSC::StructureID::dumpStatistics):
        * kjs/StructureID.h:
        (JSC::StructureID::setPrototypeWithoutTransition):

2008-10-20  Alp Toker  <alp@nuanti.com>

        Fix autotools dist build target by listing recently added header
        files only. Not reviewed.

        * GNUmakefile.am:

2008-10-20  Geoffrey Garen  <ggaren@apple.com>

        Reviewed by Anders Carlsson.

        * VM/Machine.cpp:
        (JSC::Machine::tryCacheGetByID): Removed a redundant and sometimes
        incorrect cast, which started ASSERTing after Darin's last checkin.

2008-10-20  Geoffrey Garen  <ggaren@apple.com>

        Not reviewed.
        
        Re-enable CTI, which I accidentally disabled while checking in fixes
        to bytecode.

        * wtf/Platform.h:

2008-10-20  Alp Toker  <alp@nuanti.com>

        Rubber-stamped by Mark Rowe.

        Typo fix in function name: mimimum -> minimum.

        * kjs/DateMath.cpp:
        (JSC::minimumYearForDST):
        (JSC::equivalentYearForDST):

2008-10-20  Alp Toker  <alp@nuanti.com>

        Reviewed by Mark Rowe.

        Use pthread instead of GThread where possible in the GTK+ port. This
        fixes issues with global initialisation, particularly on GTK+/Win32
        where a late g_thread_init() will cause hangs.

        * GNUmakefile.am:
        * wtf/Platform.h:
        * wtf/Threading.h:
        * wtf/ThreadingGtk.cpp:
        * wtf/ThreadingPthreads.cpp:

2008-10-20  Geoffrey Garen  <ggaren@apple.com>

        Reviewed by Darin Adler.
        
        Fixed https://bugs.webkit.org/show_bug.cgi?id=21735
        Emit profiling instrumentation only if the Web Inspector's profiling
        feature is enabled

        22.2% speedup on empty function call benchmark.
        2.9% speedup on v8 benchmark.
        0.7% speedup on SunSpider.
        
        Lesser but similar speedups in bytecode.

        * VM/CTI.cpp:
        (JSC::CTI::compileOpCall):
        (JSC::CTI::privateCompileMainPass):
        (JSC::CTI::privateCompileSlowCases): Nixed JITed profiler hooks. Profiler
        hooks now have their own opcodes. Added support for compiling profiler
        hook opcodes.
        
        (JSC::CodeBlock::dump): Dump support for the new profiling opcodes.

        * VM/CodeGenerator.h:
        * VM/CodeGenerator.cpp:
        (JSC::CodeGenerator::CodeGenerator):
        (JSC::CodeGenerator::emitCall):
        (JSC::CodeGenerator::emitConstruct): Conditionally emit profiling hooks
        around call and construct, at the call site. (It's easier to get things
        right this way, if you have profiled code calling non-profiled code.
        Also, you get a slightly more accurate profile, since you charge the full
        cost of the call / construct operation to the callee.)
        
        Also, fixed a bug where construct would fetch the ".prototype" property
        from the constructor before evaluating the arguments to the constructor,
        incorrectly allowing an "invalid constructor" exception to short-circuit
        argument evaluation. I encountered this bug when trying to make
        constructor exceptions work with profiling.

        * VM/Machine.cpp:
        (JSC::Machine::callEval): Removed obsolete profiler hooks.

        (JSC::Machine::throwException): Added a check for an exception thrown
        within a call instruction. We didn't need this before because the call
        instruction would check for a valid call before involing the profiler.
        (JSC::Machine::execute): Added a didExecute hook at the end of top-level
        function invocation, since op_ret no longer does this for us.

        (JSC::Machine::privateExecute): Removed obsolete profiler hooks. Added
        profiler opcodes. Changed some ++vPC to vPC[x] notation, since the
        latter is better for performance, and it makes reasoning about the
        current opcode in exception handling much simpler.

        (JSC::Machine::cti_op_call_NotJSFunction): Removed obsolete profiler
        hooks.

        (JSC::Machine::cti_op_create_arguments_no_params): Added missing
        CTI_STACK_HACK that I noticed when adding CTI_STACK_HACK to the new
        profiler opcode functions.

        (JSC::Machine::cti_op_profile_will_call):
        (JSC::Machine::cti_op_profile_did_call): The new profiler opcode
        functions.

        (JSC::Machine::cti_op_construct_NotJSConstruct): Removed obsolete profiler
        hooks.

        * VM/Machine.h:
        (JSC::Machine::isCallOpcode): Helper for exception handling.

        * VM/Opcode.h: Declare new opcodes.

        * kjs/JSGlobalObject.h:
        (JSC::JSGlobalObject::supportsProfiling): Added virtual interface that
        allows WebCore to specify whether the target global object has the Web
        Inspector's profiling feature enabled.

        * profiler/Profiler.cpp:
        (JSC::Profiler::willExecute):
        (JSC::Profiler::didExecute):
        (JSC::Profiler::createCallIdentifier):
        * profiler/Profiler.h: Added support for invoking the profiler with
        an arbitrary JSValue*, and not a known object. We didn't need this
        before because the call instruction would check for a valid call before
        involing the profiler.

2008-10-20  Darin Adler  <darin@apple.com>

        Reviewed by Geoff Garen.

        - get CTI working on Windows again

        * VM/CTI.cpp:
        (JSC::CTI::emitCTICall): Add an overload for functions that
        return JSObject*.
        * VM/CTI.h: Use JSValue* and JSObject* as return types for
        cti_op functions. Apparently, MSVC doesn't handle returning
        the JSValuePtr struct in a register. We'll have to look into
        this more.

        * VM/Machine.cpp:
        (JSC::Machine::cti_op_convert_this):
        (JSC::Machine::cti_op_add):
        (JSC::Machine::cti_op_pre_inc):
        (JSC::Machine::cti_op_new_object):
        (JSC::Machine::cti_op_get_by_id):
        (JSC::Machine::cti_op_get_by_id_second):
        (JSC::Machine::cti_op_get_by_id_generic):
        (JSC::Machine::cti_op_get_by_id_fail):
        (JSC::Machine::cti_op_instanceof):
        (JSC::Machine::cti_op_del_by_id):
        (JSC::Machine::cti_op_mul):
        (JSC::Machine::cti_op_new_func):
        (JSC::Machine::cti_op_push_activation):
        (JSC::Machine::cti_op_call_NotJSFunction):
        (JSC::Machine::cti_op_new_array):
        (JSC::Machine::cti_op_resolve):
        (JSC::Machine::cti_op_construct_JSConstructFast):
        (JSC::Machine::cti_op_construct_NotJSConstruct):
        (JSC::Machine::cti_op_get_by_val):
        (JSC::Machine::cti_op_sub):
        (JSC::Machine::cti_op_lesseq):
        (JSC::Machine::cti_op_negate):
        (JSC::Machine::cti_op_resolve_base):
        (JSC::Machine::cti_op_resolve_skip):
        (JSC::Machine::cti_op_resolve_global):
        (JSC::Machine::cti_op_div):
        (JSC::Machine::cti_op_pre_dec):
        (JSC::Machine::cti_op_not):
        (JSC::Machine::cti_op_eq):
        (JSC::Machine::cti_op_lshift):
        (JSC::Machine::cti_op_bitand):
        (JSC::Machine::cti_op_rshift):
        (JSC::Machine::cti_op_bitnot):
        (JSC::Machine::cti_op_new_func_exp):
        (JSC::Machine::cti_op_mod):
        (JSC::Machine::cti_op_less):
        (JSC::Machine::cti_op_neq):
        (JSC::Machine::cti_op_urshift):
        (JSC::Machine::cti_op_bitxor):
        (JSC::Machine::cti_op_new_regexp):
        (JSC::Machine::cti_op_bitor):
        (JSC::Machine::cti_op_call_eval):
        (JSC::Machine::cti_op_throw):
        (JSC::Machine::cti_op_next_pname):
        (JSC::Machine::cti_op_typeof):
        (JSC::Machine::cti_op_is_undefined):
        (JSC::Machine::cti_op_is_boolean):
        (JSC::Machine::cti_op_is_number):
        (JSC::Machine::cti_op_is_string):
        (JSC::Machine::cti_op_is_object):
        (JSC::Machine::cti_op_is_function):
        (JSC::Machine::cti_op_stricteq):
        (JSC::Machine::cti_op_nstricteq):
        (JSC::Machine::cti_op_to_jsnumber):
        (JSC::Machine::cti_op_in):
        (JSC::Machine::cti_op_push_new_scope):
        (JSC::Machine::cti_op_del_by_val):
        (JSC::Machine::cti_op_new_error):
        (JSC::Machine::cti_vm_throw):
        Change these functions to return pointer types, and never
        JSValuePtr.
        * VM/Machine.h: Ditto.

2008-10-20  Geoffrey Garen  <ggaren@apple.com>

        Reviewed by Darin Adler.
        
        Fixed some recent break-age in bytecode mode.

        * VM/CodeBlock.cpp:
        (JSC::CodeBlock::printStructureIDs): Fixed up an ASSERT caused by
        Gavin's last checkin. This is a temporary fix so I can keep on moving.
        I'll send email about what I think is an underlying problem soon.

        * VM/Machine.cpp:
        (JSC::Machine::privateExecute): Removed a redundant and sometimes
        incorrect cast, which started ASSERTing after Darin's last checkin.

2008-10-20  Darin Adler  <darin@apple.com>

        - another similar Windows build fix

        * VM/CTI.cpp: Changed return type to JSObject* instead of JSValuePtr.

2008-10-20  Darin Adler  <darin@apple.com>

        - try to fix Windows build

        * VM/CTI.cpp: Use JSValue* instead of JSValuePtr for ctiTrampoline.
        * VM/CTI.h: Ditto.

2008-10-19  Darin Adler  <darin@apple.com>

        Reviewed by Cameron Zwarich.

        - finish https://bugs.webkit.org/show_bug.cgi?id=21732
          improve performance by eliminating JSValue as a base class for JSCell

        * VM/Machine.cpp:
        (JSC::Machine::cti_op_call_profiler): Use asFunction.
        (JSC::Machine::cti_vm_lazyLinkCall): Ditto.
        (JSC::Machine::cti_op_construct_JSConstructFast): Use asObject.

        * kjs/JSCell.h: Re-sort friend classes. Eliminate inheritance from
        JSValue. Changed cast in asCell from static_cast to reinterpret_cast.
        Removed JSValue::getNumber(double&) and one of JSValue::getObject
        overloads.

        * kjs/JSValue.h: Made the private constructor and destructor both
        non-virtual and also remove the definitions. This class can never
        be instantiated or derived.

2008-10-19  Darin Adler  <darin@apple.com>

        Reviewed by Cameron Zwarich.

        - next step of https://bugs.webkit.org/show_bug.cgi?id=21732
          improve performance by eliminating JSValue as a base class for JSCell

        Change JSValuePtr from a typedef into a class. This allows us to support
        conversion from JSCell* to JSValuePtr even if JSCell isn't derived from
        JSValue.

        * JavaScriptCore.exp: Updated symbols that involve JSValuePtr, since
        it's now a distinct type.

        * API/APICast.h:
        (toRef): Extract the JSValuePtr payload explicitly since we can't just
        cast any more.
        * VM/CTI.cpp:
        (JSC::CTI::asInteger): Ditto.

        * VM/CodeGenerator.cpp:
        (JSC::CodeGenerator::addConstant): Get at the payload directly.
        (JSC::CodeGenerator::emitLoad): Added an overload of JSCell* because
        otherwise classes derived from JSValue end up calling the bool
        overload instead of JSValuePtr.
        * VM/CodeGenerator.h: Ditto. Also update traits to use JSValue*
        and the payload functions.

        * VM/Register.h: Added a JSCell* overload and use of payload functions.

        * kjs/JSCell.h:
        (JSC::asCell): Use payload function.
        (JSC::JSValue::asCell): Use JSValue* instead of JSValuePtr.
        (JSC::JSValuePtr::JSValuePtr): Added. Constructor that takes JSCell*
        and creates a JSValuePtr.

        * kjs/JSImmediate.h: Added JSValuePtr class. Also updated makeValue
        and makeInt to work with JSValue* and the payload function.

        * kjs/JSValue.h: Added == and != operators for JSValuePtr. Put them
        here because eventually all the JSValue functions should go here
        except what's needed by JSImmediate. Also fix asValue to use
        JSValue* instead of JSValuePtr.

        * kjs/PropertySlot.h: Change constructor to take JSValuePtr.

        * kjs/protect.h: Update gcProtect functions to work with JSCell*
        as well as JSValuePtr. Also updated the ProtectedPtr<JSValuePtr>
        specialization to work more directly. Also changed all the call
        sites to use gcProtectNullTolerant.

2008-10-19  Darin Adler  <darin@apple.com>

        Reviewed by Oliver Hunt.

        - next step of https://bugs.webkit.org/show_bug.cgi?id=21732
          improve performance by eliminating JSValue as a base class for JSCell

        Remove most uses of JSValue, which will be removed in a future patch.

        * VM/Machine.cpp:
        (JSC::fastToUInt32): Call toUInt32SlowCase function; no longer a member
        of JSValue.
        * kjs/JSNumberCell.h:
        (JSC::JSNumberCell::toInt32): Ditto.
        (JSC::JSNumberCell::toUInt32): Ditto.

        * kjs/JSValue.cpp:
        (JSC::toInt32SlowCase): Made a non-member function.
        (JSC::JSValue::toInt32SlowCase): Changed to call non-member function.
        (JSC::toUInt32SlowCase): More of the same.
        (JSC::JSValue::toUInt32SlowCase): Ditto.

        * kjs/JSValue.h: Moved static member function so they are no longer
        member functions at all.

        * VM/CTI.h: Removed forward declaration of JSValue.
        * VM/ExceptionHelpers.h: Ditto.
        * kjs/CallData.h: Ditto.
        * kjs/ConstructData.h: Ditto.
        * kjs/JSGlobalObjectFunctions.h: Ditto.
        * kjs/PropertyMap.h: Ditto.
        * kjs/StructureID.h: Ditto.
        * kjs/collector.h: Ditto.
        * kjs/completion.h: Ditto.

        * kjs/grammar.y:
        (JSC::makeBitwiseNotNode): Call new non-member toInt32 function.
        (JSC::makeLeftShiftNode): More of the same.
        (JSC::makeRightShiftNode): Ditto.

        * kjs/protect.h: Added a specialization for ProtectedPtr<JSValuePtr>
        so this can be used with JSValuePtr.

2008-10-18  Darin Adler  <darin@apple.com>

        Reviewed by Oliver Hunt.

        - next step of https://bugs.webkit.org/show_bug.cgi?id=21732
          improve performance by eliminating JSValue as a base class for JSCell

        Tweak a little more to get closer to where we can make JSValuePtr a class.

        * API/APICast.h:
        (toJS): Change back to JSValue* here, since we're converting the
        pointer type.
        * VM/CTI.cpp:
        (JSC::CTI::unlinkCall): Call asPointer.
        * VM/CTI.h: Cast to JSValue* here, since it's a pointer cast.
        * kjs/DebuggerCallFrame.h:
        (JSC::DebuggerCallFrame::DebuggerCallFrame): Call noValue.
        * kjs/JSGlobalData.cpp:
        (JSC::JSGlobalData::JSGlobalData): Call noValue.
        * kjs/JSImmediate.cpp:
        (JSC::JSImmediate::toObject): Remove unneeded const_cast.
        * kjs/JSWrapperObject.h:
        (JSC::JSWrapperObject::JSWrapperObject): Call noValue.

2008-10-18  Darin Adler  <darin@apple.com>

        - fix non-all-in-one build

        * kjs/completion.h:
        (JSC::Completion::Completion): Add include of JSValue.h.

2008-10-18  Darin Adler  <darin@apple.com>

        Reviewed by Oliver Hunt.

        - fix assertions I introduced with my casting changes

        These were showing up as failures in the JavaScriptCore tests.

        * VM/Machine.cpp:
        (JSC::Machine::cti_op_instanceof): Remove the bogus asCell casting that
        was at the top of the function, and instead cast at the point of use.
        (JSC::Machine::cti_op_construct_NotJSConstruct): Moved the cast to
        object after checking the construct type.

2008-10-18  Darin Adler  <darin@apple.com>

        - fix non-all-in-one build

        * kjs/JSGlobalObjectFunctions.h: Add include of JSImmedate.h (for now).

2008-10-18  Darin Adler  <darin@apple.com>

        - fix build

        * kjs/interpreter.h: Include JSValue.h instead of JSImmediate.h.

2008-10-18  Darin Adler  <darin@apple.com>

        * kjs/interpreter.h: Fix include of JSImmediate.h.

2008-10-18  Darin Adler  <darin@apple.com>

        - fix non-all-in-one build

        * kjs/interpreter.h: Add include of JSImmediate.h.

2008-10-18  Darin Adler  <darin@apple.com>

        - fix non-all-in-one build

        * kjs/ConstructData.h: Add include of JSImmedate.h (for now).

2008-10-18  Darin Adler  <darin@apple.com>

        - try to fix Windows build

        * VM/Machine.cpp:
        (JSC::Machine::Machine): Use JSCell* type since MSVC seems to only allow
        calling ~JSCell directly if it's a JSCell*.

2008-10-18  Darin Adler  <darin@apple.com>

        Reviewed by Cameron Zwarich.

        - next step on https://bugs.webkit.org/show_bug.cgi?id=21732
          improve performance by eliminating JSValue as a base class for JSCell

        Use JSValuePtr everywhere instead of JSValue*. In the future, we'll be
        changing JSValuePtr to be a class, and then eventually renaming it
        to JSValue once that's done.

        * JavaScriptCore.exp: Update entry points, since some now take JSValue*
        instead of const JSValue*.

        * API/APICast.h:
        * API/JSCallbackConstructor.h:
        * API/JSCallbackFunction.cpp:
        * API/JSCallbackFunction.h:
        * API/JSCallbackObject.h:
        * API/JSCallbackObjectFunctions.h:
        * API/JSContextRef.cpp:
        * API/JSObjectRef.cpp:
        * API/JSValueRef.cpp:
        * VM/CTI.cpp:
        * VM/CTI.h:
        * VM/CodeBlock.cpp:
        * VM/CodeBlock.h:
        * VM/CodeGenerator.cpp:
        * VM/CodeGenerator.h:
        * VM/ExceptionHelpers.cpp:
        * VM/ExceptionHelpers.h:
        * VM/JSPropertyNameIterator.cpp:
        * VM/JSPropertyNameIterator.h:
        * VM/Machine.cpp:
        * VM/Machine.h:
        * VM/Register.h:
        * kjs/ArgList.cpp:
        * kjs/ArgList.h:
        * kjs/Arguments.cpp:
        * kjs/Arguments.h:
        * kjs/ArrayConstructor.cpp:
        * kjs/ArrayPrototype.cpp:
        * kjs/BooleanConstructor.cpp:
        * kjs/BooleanConstructor.h:
        * kjs/BooleanObject.h:
        * kjs/BooleanPrototype.cpp:
        * kjs/CallData.cpp:
        * kjs/CallData.h:
        * kjs/ConstructData.cpp:
        * kjs/ConstructData.h:
        * kjs/DateConstructor.cpp:
        * kjs/DateInstance.h:
        * kjs/DatePrototype.cpp:
        * kjs/DebuggerCallFrame.cpp:
        * kjs/DebuggerCallFrame.h:
        * kjs/ErrorConstructor.cpp:
        * kjs/ErrorPrototype.cpp:
        * kjs/ExecState.cpp:
        * kjs/ExecState.h:
        * kjs/FunctionConstructor.cpp:
        * kjs/FunctionPrototype.cpp:
        * kjs/GetterSetter.cpp:
        * kjs/GetterSetter.h:
        * kjs/InternalFunction.h:
        * kjs/JSActivation.cpp:
        * kjs/JSActivation.h:
        * kjs/JSArray.cpp:
        * kjs/JSArray.h:
        * kjs/JSCell.cpp:
        * kjs/JSCell.h:
        * kjs/JSFunction.cpp:
        * kjs/JSFunction.h:
        * kjs/JSGlobalData.h:
        * kjs/JSGlobalObject.cpp:
        * kjs/JSGlobalObject.h:
        * kjs/JSGlobalObjectFunctions.cpp:
        * kjs/JSGlobalObjectFunctions.h:
        * kjs/JSImmediate.cpp:
        * kjs/JSImmediate.h:
        * kjs/JSNotAnObject.cpp:
        * kjs/JSNotAnObject.h:
        * kjs/JSNumberCell.cpp:
        * kjs/JSNumberCell.h:
        * kjs/JSObject.cpp:
        * kjs/JSObject.h:
        * kjs/JSStaticScopeObject.cpp:
        * kjs/JSStaticScopeObject.h:
        * kjs/JSString.cpp:
        * kjs/JSString.h:
        * kjs/JSValue.h:
        * kjs/JSVariableObject.h:
        * kjs/JSWrapperObject.h:
        * kjs/MathObject.cpp:
        * kjs/NativeErrorConstructor.cpp:
        * kjs/NumberConstructor.cpp:
        * kjs/NumberConstructor.h:
        * kjs/NumberObject.cpp:
        * kjs/NumberObject.h:
        * kjs/NumberPrototype.cpp:
        * kjs/ObjectConstructor.cpp:
        * kjs/ObjectPrototype.cpp:
        * kjs/ObjectPrototype.h:
        * kjs/PropertyMap.h:
        * kjs/PropertySlot.cpp:
        * kjs/PropertySlot.h:
        * kjs/RegExpConstructor.cpp:
        * kjs/RegExpConstructor.h:
        * kjs/RegExpMatchesArray.h:
        * kjs/RegExpObject.cpp:
        * kjs/RegExpObject.h:
        * kjs/RegExpPrototype.cpp:
        * kjs/Shell.cpp:
        * kjs/StringConstructor.cpp:
        * kjs/StringObject.cpp:
        * kjs/StringObject.h:
        * kjs/StringObjectThatMasqueradesAsUndefined.h:
        * kjs/StringPrototype.cpp:
        * kjs/StructureID.cpp:
        * kjs/StructureID.h:
        * kjs/collector.cpp:
        * kjs/collector.h:
        * kjs/completion.h:
        * kjs/grammar.y:
        * kjs/interpreter.cpp:
        * kjs/interpreter.h:
        * kjs/lookup.cpp:
        * kjs/lookup.h:
        * kjs/nodes.h:
        * kjs/operations.cpp:
        * kjs/operations.h:
        * kjs/protect.h:
        * profiler/ProfileGenerator.cpp:
        Replace JSValue* with JSValuePtr.

2008-10-18  Darin Adler  <darin@apple.com>

        * VM/Machine.cpp:
        (JSC::Machine::cti_op_call_eval): Removed stray parentheses from my
        last check-in.

2008-10-18  Darin Adler  <darin@apple.com>

        Reviewed by Oliver Hunt.

        - first step of https://bugs.webkit.org/show_bug.cgi?id=21732
          improve performance by eliminating JSValue as a base class for JSCell

        Remove casts from JSValue* to derived classes, replacing them with
        calls to inline casting functions. These functions are also a bit
        better than aidrect cast because they also do a runtime assertion.

        Removed use of 0 as for JSValue*, changing call sites to use a
        noValue() function instead.

        Move things needed by classes derived from JSValue out of the class,
        since the classes won't be deriving from JSValue any more soon.

        I did most of these changes by changing JSValue to not be JSValue* any
        more, then fixing a lot of the compilation problems, then rolling out
        the JSValue change.

        1.011x as fast on SunSpider (presumably due to some of the Machine.cpp changes)

        * API/APICast.h: Removed unneeded forward declarations.

        * API/JSCallbackObject.h: Added an asCallbackObject function for casting.
        * API/JSCallbackObjectFunctions.h:
        (JSC::JSCallbackObject::asCallbackObject): Added.
        (JSC::JSCallbackObject::getOwnPropertySlot): Use asObject.
        (JSC::JSCallbackObject::call): Use noValue.
        (JSC::JSCallbackObject::staticValueGetter): Use asCallbackObject.
        (JSC::JSCallbackObject::staticFunctionGetter): Ditto.
        (JSC::JSCallbackObject::callbackGetter): Ditto.

        * JavaScriptCore.exp: Updated.

        * JavaScriptCore.xcodeproj/project.pbxproj: Added RegExpMatchesArray.h.

        * VM/CTI.cpp:
        (JSC::CTI::asInteger): Added. For use casting a JSValue to an integer.
        (JSC::CTI::emitGetArg): Use asInteger.
        (JSC::CTI::emitGetPutArg): Ditto.
        (JSC::CTI::getConstantImmediateNumericArg): Ditto. Also use noValue.
        (JSC::CTI::emitInitRegister): Use asInteger.
        (JSC::CTI::getDeTaggedConstantImmediate): Ditto.
        (JSC::CTI::compileOpCallInitializeCallFrame): Ditto.
        (JSC::CTI::compileOpCall): Ditto.
        (JSC::CTI::compileOpStrictEq): Ditto.
        (JSC::CTI::privateCompileMainPass): Ditto.
        (JSC::CTI::privateCompileGetByIdProto): Ditto.
        (JSC::CTI::privateCompileGetByIdChain): Ditto.
        (JSC::CTI::privateCompilePutByIdTransition): Ditto.
        * VM/CTI.h: Rewrite the ARG-related macros to use C++ casts instead of
        C casts and get rid of some extra parentheses. Addd declaration of
        asInteger.

        * VM/CodeGenerator.cpp:
        (JSC::CodeGenerator::emitEqualityOp): Use asString.
        (JSC::CodeGenerator::emitLoad): Use noValue.
        (JSC::CodeGenerator::findScopedProperty): Change globalObject argument
        to JSObject* instead of JSValue*.
        (JSC::CodeGenerator::emitResolve): Remove unneeded cast.
        (JSC::CodeGenerator::emitGetScopedVar): Use asCell.
        (JSC::CodeGenerator::emitPutScopedVar): Ditto.
        * VM/CodeGenerator.h: Changed out argument of findScopedProperty.
        Also change the JSValueMap to use PtrHash explicitly instead of
        getting it from DefaultHash.

        * VM/JSPropertyNameIterator.cpp:
        (JSC::JSPropertyNameIterator::toPrimitive): Use noValue.
        * VM/JSPropertyNameIterator.h:
        (JSC::JSPropertyNameIterator::next): Ditto.

        * VM/Machine.cpp:
        (JSC::fastIsNumber): Moved isImmediate check here instead of
        checking for 0 inside Heap::isNumber. Use asCell and asNumberCell.
        (JSC::fastToInt32): Ditto.
        (JSC::fastToUInt32): Ditto.
        (JSC::jsLess): Use asString.
        (JSC::jsLessEq): Ditto.
        (JSC::jsAdd): Ditto.
        (JSC::jsTypeStringForValue): Use asObject.
        (JSC::jsIsObjectType): Ditto.
        (JSC::jsIsFunctionType): Ditto.
        (JSC::inlineResolveBase): Use noValue.
        (JSC::Machine::callEval): Use asString. Initialize result to
        undefined, not 0.
        (JSC::Machine::Machine): Remove unneeded casts to JSCell*.
        (JSC::Machine::throwException): Use asObject.
        (JSC::Machine::debug): Remove explicit calls to the DebuggerCallFrame
        constructor.
        (JSC::Machine::checkTimeout): Use noValue.
        (JSC::cachePrototypeChain): Use asObject.
        (JSC::Machine::tryCachePutByID): Use asCell.
        (JSC::Machine::tryCacheGetByID): Use aCell and asObject.
        (JSC::Machine::privateExecute): Use noValue, asCell, asObject, asString,
        asArray, asActivation, asFunction. Changed code that creates call frames
        for host functions to pass 0 for the function pointer -- the call frame
        needs a JSFunction* and a host function object is not one. This was
        caught by the assertions in the casting functions. Also remove some
        unneeded casts in cases where two values are compared.
        (JSC::Machine::retrieveLastCaller): Use noValue.
        (JSC::Machine::tryCTICachePutByID): Use asCell.
        (JSC::Machine::tryCTICacheGetByID): Use aCell and asObject.
        (JSC::setUpThrowTrampolineReturnAddress): Added this function to restore
        the PIC-branch-avoidance that was recently lost.
        (JSC::Machine::cti_op_add): Use asString.
        (JSC::Machine::cti_op_instanceof): Use asCell and asObject.
        (JSC::Machine::cti_op_call_JSFunction): Use asFunction.
        (JSC::Machine::cti_op_call_NotJSFunction): Changed code to pass 0 for
        the function pointer, since we don't have a JSFunction. Use asObject.
        (JSC::Machine::cti_op_tear_off_activation): Use asActivation.
        (JSC::Machine::cti_op_construct_JSConstruct): Use asFunction and asObject.
        (JSC::Machine::cti_op_construct_NotJSConstruct): use asObject.
        (JSC::Machine::cti_op_get_by_val): Use asArray and asString.
        (JSC::Machine::cti_op_resolve_func): Use asPointer; this helps prepare
        us for a situation where JSValue is not a pointer.
        (JSC::Machine::cti_op_put_by_val): Use asArray.
        (JSC::Machine::cti_op_put_by_val_array): Ditto.
        (JSC::Machine::cti_op_resolve_global): Use asGlobalObject.
        (JSC::Machine::cti_op_post_inc): Change VM_CHECK_EXCEPTION_2 to
        VM_CHECK_EXCEPTION_AT_END, since there's no observable work done after
        that point. Also use asPointer.
        (JSC::Machine::cti_op_resolve_with_base): Use asPointer.
        (JSC::Machine::cti_op_post_dec): Change VM_CHECK_EXCEPTION_2 to
        VM_CHECK_EXCEPTION_AT_END, since there's no observable work done after
        that point. Also use asPointer.
        (JSC::Machine::cti_op_call_eval): Use asObject, noValue, and change
        VM_CHECK_EXCEPTION_ARG to VM_THROW_EXCEPTION_AT_END.
        (JSC::Machine::cti_op_throw): Change return value to a JSValue*.
        (JSC::Machine::cti_op_in): Use asObject.
        (JSC::Machine::cti_op_switch_char): Use asString.
        (JSC::Machine::cti_op_switch_string): Ditto.
        (JSC::Machine::cti_op_put_getter): Use asObject.
        (JSC::Machine::cti_op_put_setter): Ditto.
        (JSC::Machine::cti_vm_throw): Change return value to a JSValue*.
        Use noValue.
        * VM/Machine.h: Change return values of both cti_op_throw and
        cti_vm_throw to JSValue*.

        * VM/Register.h: Remove nullJSValue, which is the same thing
        as noValue(). Also removed unneeded definition of JSValue.

        * kjs/ArgList.h: Removed unneeded definition of JSValue.

        * kjs/Arguments.h:
        (JSC::asArguments): Added.

        * kjs/ArrayPrototype.cpp:
        (JSC::getProperty): Use noValue.
        (JSC::arrayProtoFuncToString): Use asArray.
        (JSC::arrayProtoFuncToLocaleString): Ditto.
        (JSC::arrayProtoFuncConcat): Ditto.
        (JSC::arrayProtoFuncPop): Ditto. Also removed unneeded initialization
        of the result, which is set in both sides of the branch.
        (JSC::arrayProtoFuncPush): Ditto.
        (JSC::arrayProtoFuncShift): Removed unneeded initialization
        of the result, which is set in both sides of the branch.
        (JSC::arrayProtoFuncSort): Use asArray.

        * kjs/BooleanObject.h:
        (JSC::asBooleanObject): Added.

        * kjs/BooleanPrototype.cpp:
        (JSC::booleanProtoFuncToString): Use asBooleanObject.
        (JSC::booleanProtoFuncValueOf): Ditto.

        * kjs/CallData.cpp:
        (JSC::call): Use asObject and asFunction.
        * kjs/ConstructData.cpp:
        (JSC::construct): Ditto.

        * kjs/DateConstructor.cpp:
        (JSC::constructDate): Use asDateInstance.

        * kjs/DateInstance.h:
        (JSC::asDateInstance): Added.

        * kjs/DatePrototype.cpp:
        (JSC::dateProtoFuncToString): Use asDateInstance.
        (JSC::dateProtoFuncToUTCString): Ditto.
        (JSC::dateProtoFuncToDateString): Ditto.
        (JSC::dateProtoFuncToTimeString): Ditto.
        (JSC::dateProtoFuncToLocaleString): Ditto.
        (JSC::dateProtoFuncToLocaleDateString): Ditto.
        (JSC::dateProtoFuncToLocaleTimeString): Ditto.
        (JSC::dateProtoFuncValueOf): Ditto.
        (JSC::dateProtoFuncGetTime): Ditto.
        (JSC::dateProtoFuncGetFullYear): Ditto.
        (JSC::dateProtoFuncGetUTCFullYear): Ditto.
        (JSC::dateProtoFuncToGMTString): Ditto.
        (JSC::dateProtoFuncGetMonth): Ditto.
        (JSC::dateProtoFuncGetUTCMonth): Ditto.
        (JSC::dateProtoFuncGetDate): Ditto.
        (JSC::dateProtoFuncGetUTCDate): Ditto.
        (JSC::dateProtoFuncGetDay): Ditto.
        (JSC::dateProtoFuncGetUTCDay): Ditto.
        (JSC::dateProtoFuncGetHours): Ditto.
        (JSC::dateProtoFuncGetUTCHours): Ditto.
        (JSC::dateProtoFuncGetMinutes): Ditto.
        (JSC::dateProtoFuncGetUTCMinutes): Ditto.
        (JSC::dateProtoFuncGetSeconds): Ditto.
        (JSC::dateProtoFuncGetUTCSeconds): Ditto.
        (JSC::dateProtoFuncGetMilliSeconds): Ditto.
        (JSC::dateProtoFuncGetUTCMilliseconds): Ditto.
        (JSC::dateProtoFuncGetTimezoneOffset): Ditto.
        (JSC::dateProtoFuncSetTime): Ditto.
        (JSC::setNewValueFromTimeArgs): Ditto.
        (JSC::setNewValueFromDateArgs): Ditto.
        (JSC::dateProtoFuncSetYear): Ditto.
        (JSC::dateProtoFuncGetYear): Ditto.

        * kjs/DebuggerCallFrame.cpp:
        (JSC::DebuggerCallFrame::thisObject): Use asObject.
        (JSC::DebuggerCallFrame::evaluate): Use noValue.
        * kjs/DebuggerCallFrame.h: Added a constructor that
        takes only a callFrame.

        * kjs/ExecState.h:
        (JSC::ExecState::clearException): Use noValue.

        * kjs/FunctionPrototype.cpp:
        (JSC::functionProtoFuncToString): Use asFunction.
        (JSC::functionProtoFuncApply): Use asArguments and asArray.

        * kjs/GetterSetter.cpp:
        (JSC::GetterSetter::getPrimitiveNumber): Use noValue.

        * kjs/GetterSetter.h:
        (JSC::asGetterSetter): Added.

        * kjs/InternalFunction.cpp:
        (JSC::InternalFunction::name): Use asString.

        * kjs/InternalFunction.h:
        (JSC::asInternalFunction): Added.

        * kjs/JSActivation.cpp:
        (JSC::JSActivation::argumentsGetter): Use asActivation.

        * kjs/JSActivation.h:
        (JSC::asActivation): Added.

        * kjs/JSArray.cpp:
        (JSC::JSArray::putSlowCase): Use noValue.
        (JSC::JSArray::deleteProperty): Ditto.
        (JSC::JSArray::increaseVectorLength): Ditto.
        (JSC::JSArray::setLength): Ditto.
        (JSC::JSArray::pop): Ditto.
        (JSC::JSArray::sort): Ditto.
        (JSC::JSArray::compactForSorting): Ditto.
        * kjs/JSArray.h:
        (JSC::asArray): Added.

        * kjs/JSCell.cpp:
        (JSC::JSCell::getJSNumber): Use noValue.

        * kjs/JSCell.h:
        (JSC::asCell): Added.
        (JSC::JSValue::asCell): Changed to not preserve const.
        Given the wide use of JSValue* and JSCell*, it's not
        really useful to use const.
        (JSC::JSValue::isNumber): Use asValue.
        (JSC::JSValue::isString): Ditto.
        (JSC::JSValue::isGetterSetter): Ditto.
        (JSC::JSValue::isObject): Ditto.
        (JSC::JSValue::getNumber): Ditto.
        (JSC::JSValue::getString): Ditto.
        (JSC::JSValue::getObject): Ditto.
        (JSC::JSValue::getCallData): Ditto.
        (JSC::JSValue::getConstructData): Ditto.
        (JSC::JSValue::getUInt32): Ditto.
        (JSC::JSValue::getTruncatedInt32): Ditto.
        (JSC::JSValue::getTruncatedUInt32): Ditto.
        (JSC::JSValue::mark): Ditto.
        (JSC::JSValue::marked): Ditto.
        (JSC::JSValue::toPrimitive): Ditto.
        (JSC::JSValue::getPrimitiveNumber): Ditto.
        (JSC::JSValue::toBoolean): Ditto.
        (JSC::JSValue::toNumber): Ditto.
        (JSC::JSValue::toString): Ditto.
        (JSC::JSValue::toObject): Ditto.
        (JSC::JSValue::toThisObject): Ditto.
        (JSC::JSValue::needsThisConversion): Ditto.
        (JSC::JSValue::toThisString): Ditto.
        (JSC::JSValue::getJSNumber): Ditto.

        * kjs/JSFunction.cpp:
        (JSC::JSFunction::argumentsGetter): Use asFunction.
        (JSC::JSFunction::callerGetter): Ditto.
        (JSC::JSFunction::lengthGetter): Ditto.
        (JSC::JSFunction::construct): Use asObject.

        * kjs/JSFunction.h:
        (JSC::asFunction): Added.

        * kjs/JSGlobalObject.cpp:
        (JSC::lastInPrototypeChain): Use asObject.

        * kjs/JSGlobalObject.h:
        (JSC::asGlobalObject): Added.
        (JSC::ScopeChainNode::globalObject): Use asGlobalObject.

        * kjs/JSImmediate.h: Added noValue, asPointer, and makeValue
        functions. Use rawValue, makeValue, and noValue consistently
        instead of doing reinterpret_cast in various functions.

        * kjs/JSNumberCell.h:
        (JSC::asNumberCell): Added.
        (JSC::JSValue::uncheckedGetNumber): Use asValue and asNumberCell.
        (JSC::JSValue::toJSNumber): Use asValue.

        * kjs/JSObject.cpp:
        (JSC::JSObject::put): Use asObject and asGetterSetter.
        (JSC::callDefaultValueFunction): Use noValue.
        (JSC::JSObject::defineGetter): Use asGetterSetter.
        (JSC::JSObject::defineSetter): Ditto.
        (JSC::JSObject::lookupGetter): Ditto. Also use asObject.
        (JSC::JSObject::lookupSetter): Ditto.
        (JSC::JSObject::hasInstance): Use asObject.
        (JSC::JSObject::fillGetterPropertySlot): Use asGetterSetter.

        * kjs/JSObject.h:
        (JSC::JSObject::getDirect): Use noValue.
        (JSC::asObject): Added.
        (JSC::JSValue::isObject): Use asValue.
        (JSC::JSObject::get): Removed unneeded const_cast.
        (JSC::JSObject::getPropertySlot): Use asObject.
        (JSC::JSValue::get): Removed unneeded const_cast.
        Use asValue, asCell, and asObject.
        (JSC::JSValue::put): Ditto.
        (JSC::JSObject::allocatePropertyStorageInline): Fixed spelling
        of "oldPropertStorage".

        * kjs/JSString.cpp:
        (JSC::JSString::getOwnPropertySlot): Use asObject.

        * kjs/JSString.h:
        (JSC::asString): Added.
        (JSC::JSValue::toThisJSString): Use asValue.

        * kjs/JSValue.h: Make PreferredPrimitiveType a top level enum
        instead of a member of JSValue. Added an asValue function that
        returns this. Removed overload of asCell for const. Use asValue
        instead of getting right at this.

        * kjs/ObjectPrototype.cpp:
        (JSC::objectProtoFuncIsPrototypeOf): Use asObject.
        (JSC::objectProtoFuncDefineGetter): Ditto.
        (JSC::objectProtoFuncDefineSetter): Ditto.

        * kjs/PropertySlot.h:
        (JSC::PropertySlot::PropertySlot): Take a const JSValue* so the
        callers don't have to worry about const.
        (JSC::PropertySlot::clearBase): Use noValue.
        (JSC::PropertySlot::clearValue): Ditto.

        * kjs/RegExpConstructor.cpp:
        (JSC::regExpConstructorDollar1): Use asRegExpConstructor.
        (JSC::regExpConstructorDollar2): Ditto.
        (JSC::regExpConstructorDollar3): Ditto.
        (JSC::regExpConstructorDollar4): Ditto.
        (JSC::regExpConstructorDollar5): Ditto.
        (JSC::regExpConstructorDollar6): Ditto.
        (JSC::regExpConstructorDollar7): Ditto.
        (JSC::regExpConstructorDollar8): Ditto.
        (JSC::regExpConstructorDollar9): Ditto.
        (JSC::regExpConstructorInput): Ditto.
        (JSC::regExpConstructorMultiline): Ditto.
        (JSC::regExpConstructorLastMatch): Ditto.
        (JSC::regExpConstructorLastParen): Ditto.
        (JSC::regExpConstructorLeftContext): Ditto.
        (JSC::regExpConstructorRightContext): Ditto.
        (JSC::setRegExpConstructorInput): Ditto.
        (JSC::setRegExpConstructorMultiline): Ditto.
        (JSC::constructRegExp): Use asObject.

        * kjs/RegExpConstructor.h:
        (JSC::asRegExpConstructor): Added.

        * kjs/RegExpObject.cpp:
        (JSC::regExpObjectGlobal): Use asRegExpObject.
        (JSC::regExpObjectIgnoreCase): Ditto.
        (JSC::regExpObjectMultiline): Ditto.
        (JSC::regExpObjectSource): Ditto.
        (JSC::regExpObjectLastIndex): Ditto.
        (JSC::setRegExpObjectLastIndex): Ditto.
        (JSC::callRegExpObject): Ditto.

        * kjs/RegExpObject.h:
        (JSC::asRegExpObject): Added.

        * kjs/RegExpPrototype.cpp:
        (JSC::regExpProtoFuncTest): Use asRegExpObject.
        (JSC::regExpProtoFuncExec): Ditto.
        (JSC::regExpProtoFuncCompile): Ditto.
        (JSC::regExpProtoFuncToString): Ditto.

        * kjs/StringObject.h:
        (JSC::StringObject::internalValue): Use asString.
        (JSC::asStringObject): Added.

        * kjs/StringPrototype.cpp:
        (JSC::stringProtoFuncReplace): Use asRegExpObject.
        (JSC::stringProtoFuncToString): Ue asStringObject.
        (JSC::stringProtoFuncMatch): Use asRegExpObject.
        (JSC::stringProtoFuncSearch): Ditto.
        (JSC::stringProtoFuncSplit): Ditto.

        * kjs/StructureID.cpp:
        (JSC::StructureID::getEnumerablePropertyNames): Use asObject.
        (JSC::StructureID::createCachedPrototypeChain): Ditto.
        (JSC::StructureIDChain::StructureIDChain): Use asCell and asObject.

        * kjs/collector.h:
        (JSC::Heap::isNumber): Removed null handling. This can only be called
        on valid cells.
        (JSC::Heap::cellBlock): Removed overload for const and non-const.
        Whether the JSCell* is const or not really should have no effect on
        whether you can modify the collector block it's in.

        * kjs/interpreter.cpp:
        (JSC::Interpreter::evaluate): Use noValue and noObject.

        * kjs/nodes.cpp:
        (JSC::FunctionCallResolveNode::emitCode): Use JSObject for the global
        object rather than JSValue.
        (JSC::PostfixResolveNode::emitCode): Ditto.
        (JSC::PrefixResolveNode::emitCode): Ditto.
        (JSC::ReadModifyResolveNode::emitCode): Ditto.
        (JSC::AssignResolveNode::emitCode): Ditto.

        * kjs/operations.h:
        (JSC::equalSlowCaseInline): Use asString, asCell, asNumberCell, 
        (JSC::strictEqualSlowCaseInline): Ditto.

2008-10-18  Cameron Zwarich  <zwarich@apple.com>

        Reviewed by Oliver Hunt.

        Bug 21702: Special op_create_activation for the case where there are no named parameters
        <https://bugs.webkit.org/show_bug.cgi?id=21702>

        This is a 2.5% speedup on the V8 Raytrace benchmark and a 1.1% speedup
        on the V8 Earley-Boyer benchmark.

        * VM/CTI.cpp:
        (JSC::CTI::privateCompileMainPass):
        * VM/Machine.cpp:
        (JSC::Machine::cti_op_create_arguments_no_params):
        * VM/Machine.h:
        * kjs/Arguments.h:
        (JSC::Arguments::):
        (JSC::Arguments::Arguments):

2008-10-17  Maciej Stachowiak  <mjs@apple.com>

        Reviewed by Cameron Zwarich.
        
        - in debug builds, alter the stack to avoid blowing out MallocStackLogging
        
        (In essence, while executing a CTI function we alter the return
        address to jscGeneratedNativeCode so that a single consistent
        function is on the stack instead of many random functions without
        symbols.)

        * VM/CTI.h:
        * VM/Machine.cpp:
        (JSC::doSetReturnAddress):
        (JSC::):
        (JSC::StackHack::StackHack):
        (JSC::StackHack::~StackHack):
        (JSC::Machine::cti_op_convert_this):
        (JSC::Machine::cti_op_end):
        (JSC::Machine::cti_op_add):
        (JSC::Machine::cti_op_pre_inc):
        (JSC::Machine::cti_timeout_check):
        (JSC::Machine::cti_register_file_check):
        (JSC::Machine::cti_op_loop_if_less):
        (JSC::Machine::cti_op_loop_if_lesseq):
        (JSC::Machine::cti_op_new_object):
        (JSC::Machine::cti_op_put_by_id):
        (JSC::Machine::cti_op_put_by_id_second):
        (JSC::Machine::cti_op_put_by_id_generic):
        (JSC::Machine::cti_op_put_by_id_fail):
        (JSC::Machine::cti_op_get_by_id):
        (JSC::Machine::cti_op_get_by_id_second):
        (JSC::Machine::cti_op_get_by_id_generic):
        (JSC::Machine::cti_op_get_by_id_fail):
        (JSC::Machine::cti_op_instanceof):
        (JSC::Machine::cti_op_del_by_id):
        (JSC::Machine::cti_op_mul):
        (JSC::Machine::cti_op_new_func):
        (JSC::Machine::cti_op_call_profiler):
        (JSC::Machine::cti_op_call_JSFunction):
        (JSC::Machine::cti_vm_lazyLinkCall):
        (JSC::Machine::cti_vm_compile):
        (JSC::Machine::cti_op_push_activation):
        (JSC::Machine::cti_op_call_NotJSFunction):
        (JSC::Machine::cti_op_create_arguments):
        (JSC::Machine::cti_op_tear_off_activation):
        (JSC::Machine::cti_op_tear_off_arguments):
        (JSC::Machine::cti_op_ret_profiler):
        (JSC::Machine::cti_op_ret_scopeChain):
        (JSC::Machine::cti_op_new_array):
        (JSC::Machine::cti_op_resolve):
        (JSC::Machine::cti_op_construct_JSConstructFast):
        (JSC::Machine::cti_op_construct_JSConstruct):
        (JSC::Machine::cti_op_construct_NotJSConstruct):
        (JSC::Machine::cti_op_get_by_val):
        (JSC::Machine::cti_op_resolve_func):
        (JSC::Machine::cti_op_sub):
        (JSC::Machine::cti_op_put_by_val):
        (JSC::Machine::cti_op_put_by_val_array):
        (JSC::Machine::cti_op_lesseq):
        (JSC::Machine::cti_op_loop_if_true):
        (JSC::Machine::cti_op_negate):
        (JSC::Machine::cti_op_resolve_base):
        (JSC::Machine::cti_op_resolve_skip):
        (JSC::Machine::cti_op_resolve_global):
        (JSC::Machine::cti_op_div):
        (JSC::Machine::cti_op_pre_dec):
        (JSC::Machine::cti_op_jless):
        (JSC::Machine::cti_op_not):
        (JSC::Machine::cti_op_jtrue):
        (JSC::Machine::cti_op_post_inc):
        (JSC::Machine::cti_op_eq):
        (JSC::Machine::cti_op_lshift):
        (JSC::Machine::cti_op_bitand):
        (JSC::Machine::cti_op_rshift):
        (JSC::Machine::cti_op_bitnot):
        (JSC::Machine::cti_op_resolve_with_base):
        (JSC::Machine::cti_op_new_func_exp):
        (JSC::Machine::cti_op_mod):
        (JSC::Machine::cti_op_less):
        (JSC::Machine::cti_op_neq):
        (JSC::Machine::cti_op_post_dec):
        (JSC::Machine::cti_op_urshift):
        (JSC::Machine::cti_op_bitxor):
        (JSC::Machine::cti_op_new_regexp):
        (JSC::Machine::cti_op_bitor):
        (JSC::Machine::cti_op_call_eval):
        (JSC::Machine::cti_op_throw):
        (JSC::Machine::cti_op_get_pnames):
        (JSC::Machine::cti_op_next_pname):
        (JSC::Machine::cti_op_push_scope):
        (JSC::Machine::cti_op_pop_scope):
        (JSC::Machine::cti_op_typeof):
        (JSC::Machine::cti_op_is_undefined):
        (JSC::Machine::cti_op_is_boolean):
        (JSC::Machine::cti_op_is_number):
        (JSC::Machine::cti_op_is_string):
        (JSC::Machine::cti_op_is_object):
        (JSC::Machine::cti_op_is_function):
        (JSC::Machine::cti_op_stricteq):
        (JSC::Machine::cti_op_nstricteq):
        (JSC::Machine::cti_op_to_jsnumber):
        (JSC::Machine::cti_op_in):
        (JSC::Machine::cti_op_push_new_scope):
        (JSC::Machine::cti_op_jmp_scopes):
        (JSC::Machine::cti_op_put_by_index):
        (JSC::Machine::cti_op_switch_imm):
        (JSC::Machine::cti_op_switch_char):
        (JSC::Machine::cti_op_switch_string):
        (JSC::Machine::cti_op_del_by_val):
        (JSC::Machine::cti_op_put_getter):
        (JSC::Machine::cti_op_put_setter):
        (JSC::Machine::cti_op_new_error):
        (JSC::Machine::cti_op_debug):
        (JSC::Machine::cti_vm_throw):

2008-10-17  Gavin Barraclough  <barraclough@apple.com>

        Optimize op_call by allowing call sites to be directly linked to callees.

        For the hot path of op_call, CTI now generates a check (initially for an impossible
        value), and the first time the call is executed we attempt to link the call directly
        to the callee.  We can currently only do so if the arity of the caller and callee
        match.  The (optimized) setup for the call on the hot path is linked directly to
        the ctiCode for the callee, without indirection.
        
        Two forms of the slow case of the call are generated, the first will be executed the
        first time the call is reached.  As well as this path attempting to link the call to
        a callee, it also relinks the slow case to a second slow case, which will not continue
        to attempt relinking the call.  (This policy could be changed in future, but for not
        this is intended to prevent thrashing).

        If a callee that the caller has been linked to is garbage collected, then the link
        in the caller's JIt code will be reset back to a value that cannot match - to prevent
        any false positive matches.

        ~20% progression on deltablue & richards, >12% overall reduction in v8-tests
        runtime, one or two percent progression on sunspider.

        Reviewed by Oliver Hunt.

        * VM/CTI.cpp:
        (JSC::):
        (JSC::CTI::emitNakedCall):
        (JSC::unreachable):
        (JSC::CTI::compileOpCallInitializeCallFrame):
        (JSC::CTI::compileOpCallSetupArgs):
        (JSC::CTI::compileOpCall):
        (JSC::CTI::privateCompileMainPass):
        (JSC::CTI::privateCompileSlowCases):
        (JSC::CTI::privateCompile):
        (JSC::CTI::unlinkCall):
        (JSC::CTI::linkCall):
        * VM/CTI.h:
        * VM/CodeBlock.cpp:
        (JSC::CodeBlock::~CodeBlock):
        (JSC::CodeBlock::unlinkCallers):
        (JSC::CodeBlock::derefStructureIDs):
        * VM/CodeBlock.h:
        (JSC::StructureStubInfo::StructureStubInfo):
        (JSC::CallLinkInfo::CallLinkInfo):
        (JSC::CodeBlock::addCaller):
        (JSC::CodeBlock::removeCaller):
        (JSC::CodeBlock::getStubInfo):
        * VM/CodeGenerator.cpp:
        (JSC::CodeGenerator::emitCall):
        (JSC::CodeGenerator::emitConstruct):
        * VM/Machine.cpp:
        (JSC::Machine::cti_op_call_profiler):
        (JSC::Machine::cti_op_call_JSFunction):
        (JSC::Machine::cti_vm_lazyLinkCall):
        (JSC::Machine::cti_op_construct_JSConstructFast):
        (JSC::Machine::cti_op_construct_JSConstruct):
        (JSC::Machine::cti_op_construct_NotJSConstruct):
        * VM/Machine.h:
        * kjs/JSFunction.cpp:
        (JSC::JSFunction::~JSFunction):
        * kjs/JSFunction.h:
        * kjs/nodes.h:
        (JSC::FunctionBodyNode::):
        * masm/X86Assembler.h:
        (JSC::X86Assembler::getDifferenceBetweenLabels):

2008-10-17  Maciej Stachowiak  <mjs@apple.com>

        Reviewed by Geoff Garen.
        
        - remove ASSERT that makes the leaks buildbot cry

        * kjs/JSFunction.cpp:
        (JSC::JSFunction::JSFunction):

2008-10-17  Maciej Stachowiak  <mjs@apple.com>

        Reviewed by Cameron Zwarich
        
        - don't bother to do arguments tearoff when it will have no effect

        ~1% on v8 raytrace
        
        * VM/CodeGenerator.cpp:
        (JSC::CodeGenerator::emitReturn):

2008-10-17  Marco Barisione  <marco.barisione@collabora.co.uk>

        Reviewed by Sam Weinig. Landed by Jan Alonzo.

        https://bugs.webkit.org/show_bug.cgi?id=21603
        [GTK] Minor fixes to GOwnPtr

        * wtf/GOwnPtr.cpp:
        (WTF::GError):
        (WTF::GList):
        (WTF::GCond):
        (WTF::GMutex):
        (WTF::GPatternSpec):
        (WTF::GDir):
        * wtf/GOwnPtr.h:
        (WTF::freeOwnedGPtr):
        (WTF::GOwnPtr::~GOwnPtr):
        (WTF::GOwnPtr::outPtr):
        (WTF::GOwnPtr::set):
        (WTF::GOwnPtr::clear):
        * wtf/Threading.h:

2008-10-17  Maciej Stachowiak  <mjs@apple.com>

        Reviewed by Cameron Zwarich.
        
        - speed up transitions that resize the property storage a fair bit
        
        ~3% speedup on v8 RayTrace benchmark, ~1% on DeltaBlue

        * VM/CTI.cpp:
        (JSC::resizePropertyStorage): renamed from transitionObject, and reduced to just resize
        the object's property storage with one inline call.
        (JSC::CTI::privateCompilePutByIdTransition): Use a separate function for property storage
        resize, but still do all the rest of the work in assembly in that case, and pass the known
        compile-time constants of old and new size rather than structureIDs, saving a bunch of
        redundant memory access.
        * kjs/JSObject.cpp:
        (JSC::JSObject::allocatePropertyStorage): Just call the inline version.
        * kjs/JSObject.h:
        (JSC::JSObject::allocatePropertyStorageInline): Inline version of allocatePropertyStorage
        * masm/X86Assembler.h:
        (JSC::X86Assembler::):
        (JSC::X86Assembler::pushl_i32): Add code to assmeble push of a constant; code originally by Cameron Zwarich.

2008-10-17  Cameron Zwarich  <zwarich@apple.com>

        Reviewed by Maciej Stachowiak.

        Remove some C style casts.

        * masm/X86Assembler.h:
        (JSC::JITCodeBuffer::putIntUnchecked):
        (JSC::X86Assembler::link):
        (JSC::X86Assembler::linkAbsoluteAddress):
        (JSC::X86Assembler::getRelocatedAddress):

2008-10-17  Cameron Zwarich  <zwarich@apple.com>

        Rubber-stamped by Maciej Stachowiak.

        Remove some C style casts.

        * VM/CTI.cpp:
        (JSC::CTI::patchGetByIdSelf):
        (JSC::CTI::patchPutByIdReplace):
        * VM/Machine.cpp:
        (JSC::Machine::tryCTICachePutByID):
        (JSC::Machine::tryCTICacheGetByID):
        (JSC::Machine::cti_op_put_by_id):
        (JSC::Machine::cti_op_put_by_id_fail):
        (JSC::Machine::cti_op_get_by_id):
        (JSC::Machine::cti_op_get_by_id_fail):

2008-10-17  Maciej Stachowiak  <mjs@apple.com>

        Reviewed by Cameron Zwarich.
        
        - Avoid restoring the caller's 'r' value in op_ret
        https://bugs.webkit.org/show_bug.cgi?id=21319

        This patch stops writing the call frame at call and return points;
        instead it does so immediately before any CTI call.
        
        0.5% speedup or so on the v8 benchmark
               
        * VM/CTI.cpp:
        (JSC::CTI::emitCTICall):
        (JSC::CTI::compileOpCall):
        (JSC::CTI::emitSlowScriptCheck):
        (JSC::CTI::compileBinaryArithOpSlowCase):
        (JSC::CTI::privateCompileMainPass):
        (JSC::CTI::privateCompileSlowCases):
        (JSC::CTI::privateCompile):
        * VM/CTI.h:

2008-10-17  Cameron Zwarich  <zwarich@apple.com>

        Reviewed by Sam Weinig.

        Make WREC require CTI because it won't actually compile otherwise.

        * wtf/Platform.h:

2008-10-16  Maciej Stachowiak  <mjs@apple.com>

        Reviewed by Geoff Garen.

        - fixed <rdar://problem/5806316> JavaScriptCore should not force building with gcc 4.0
        - use gcc 4.2 when building with Xcode 3.1 or newer on Leopard, even though this is not the default

        This time there is no performance regression; we can avoid having
        to use the fastcall calling convention for CTI functions by using
        varargs to prevent the compiler from moving things around on the
        stack.
        
        * Configurations/DebugRelease.xcconfig:
        * JavaScriptCore.xcodeproj/project.pbxproj:
        * VM/CTI.cpp:
        * VM/Machine.h:
        * wtf/Platform.h:

2008-10-16  Maciej Stachowiak  <mjs@apple.com>

        Reviewed by Oliver Hunt.

        - fix for REGRESSION: r37631 causing crashes on buildbot
        https://bugs.webkit.org/show_bug.cgi?id=21682
        
        * kjs/collector.cpp:
        (JSC::Heap::collect): Avoid crashing when a GC occurs while no global objects are live.

2008-10-16  Sam Weinig  <sam@webkit.org>

        Reviewed by Maciej Stachowiak.

        Fix for https://bugs.webkit.org/show_bug.cgi?id=21683
        Don't create intermediate StructureIDs for builtin objects

        First step in reduce number of StructureIDs created when initializing the
        JSGlobalObject.

        - In order to avoid creating the intermediate StructureIDs use the new putDirectWithoutTransition
          and putDirectFunctionWithoutTransition to add properties to JSObjects without transitioning
          the StructureID.  This patch just implements this strategy for ObjectPrototype but alone
          reduces the number of StructureIDs create for about:blank by 10, from 142 to 132.

        * kjs/JSGlobalObject.cpp:
        (JSC::JSGlobalObject::reset):
        * kjs/JSObject.cpp:
        (JSC::JSObject::putDirectFunctionWithoutTransition):
        * kjs/JSObject.h:
        (JSC::JSObject::putDirectWithoutTransition):
        * kjs/ObjectPrototype.cpp:
        (JSC::ObjectPrototype::ObjectPrototype):
        * kjs/ObjectPrototype.h:
        * kjs/StructureID.cpp:
        (JSC::StructureID::addPropertyWithoutTransition):
        * kjs/StructureID.h:

2008-10-16  Maciej Stachowiak  <mjs@apple.com>

        Reviewed by Cameron Zwarich.
        
        - fix for: REGRESSION: over 100 StructureIDs leak loading about:blank (result of fix for bug 21633)
        
        Apparent slight progression (< 0.5%) on v8 benchmarks and SunSpider.

        * kjs/StructureID.cpp:
        (JSC::StructureID::~StructureID): Don't deref this object's parent's pointer to
        itself from the destructor; that doesn't even make sense.
        (JSC::StructureID::addPropertyTransition): Don't refer the single transition;
        the rule is that parent StructureIDs are ref'd but child ones are not. Refing
        the child creates a cycle.

2008-10-15  Alexey Proskuryakov  <ap@webkit.org>

        Reviewed by Darin Adler.

        https://bugs.webkit.org/show_bug.cgi?id=21609
        Make MessagePorts protect their peers across heaps

        * JavaScriptCore.exp:
        * kjs/JSGlobalObject.cpp:
        (JSC::JSGlobalObject::markCrossHeapDependentObjects):
        * kjs/JSGlobalObject.h:
        * kjs/collector.cpp:
        (JSC::Heap::collect):
        Before GC sweep phase, a function supplied by global object is now called for all global
        objects in the heap, making it possible to implement cross-heap dependencies.

2008-10-15  Alexey Proskuryakov  <ap@webkit.org>

        Reviewed by Darin Adler.

        https://bugs.webkit.org/show_bug.cgi?id=21610
        run-webkit-threads --threaded crashes in StructureID destructor

        * kjs/StructureID.cpp:
        (JSC::StructureID::StructureID):
        (JSC::StructureID::~StructureID):
        Protect access to a static (debug-only) HashSet with a lock.

2008-10-15  Sam Weinig  <sam@webkit.org>

        Reviewed by Goeffrey Garen.

        Add function to dump statistics for StructureIDs.

        * kjs/StructureID.cpp:
        (JSC::StructureID::dumpStatistics):
        (JSC::StructureID::StructureID):
        (JSC::StructureID::~StructureID):
        * kjs/StructureID.h:

2008-10-15  Cameron Zwarich  <zwarich@apple.com>

        Reviewed by Maciej Stachowiak.

        Bug 21633: Avoid using a HashMap when there is only a single transition
        <https://bugs.webkit.org/show_bug.cgi?id=21633>

        This is a 0.8% speedup on SunSpider and between a 0.5% and 1.0% speedup
        on the V8 benchmark suite, depending on which harness we use. It will
        also slightly reduce the memory footprint of a StructureID.

        * kjs/StructureID.cpp:
        (JSC::StructureID::StructureID):
        (JSC::StructureID::~StructureID):
        (JSC::StructureID::addPropertyTransition):
        * kjs/StructureID.h:
        (JSC::StructureID::):

2008-10-15  Csaba Osztrogonac  <oszi@inf.u-szeged.hu>

        Reviewed by Geoffrey Garen.

        1.40% speedup on SunSpider, 1.44% speedup on V8. (Linux)
        
        No change on Mac.

        * VM/Machine.cpp:
        (JSC::fastIsNumber): ALWAYS_INLINE modifier added.

2008-10-15  Geoffrey Garen  <ggaren@apple.com>

        Reviewed by Cameron Zwarich.

        Fixed https://bugs.webkit.org/show_bug.cgi?id=21345
        Start the debugger without reloading the inspected page

        * JavaScriptCore.exp: New symbols.
        * JavaScriptCore.xcodeproj/project.pbxproj: New files.

        * VM/CodeBlock.h:
        (JSC::EvalCodeCache::get): Updated for tweak to parsing API.

        * kjs/CollectorHeapIterator.h: Added. An iterator for the object heap,
        which we use to find all the live functions and recompile them.

        * kjs/DebuggerCallFrame.cpp:
        (JSC::DebuggerCallFrame::evaluate): Updated for tweak to parsing API.

        * kjs/FunctionConstructor.cpp:
        (JSC::constructFunction): Updated for tweak to parsing API.

        * kjs/JSFunction.cpp:
        (JSC::JSFunction::JSFunction): Try to validate our SourceCode in debug
        builds by ASSERTing that it's syntactically valid. This doesn't catch
        all SourceCode bugs, but it catches a lot of them.

        * kjs/JSGlobalObjectFunctions.cpp:
        (JSC::globalFuncEval): Updated for tweak to parsing API.

        * kjs/Parser.cpp:
        (JSC::Parser::parse):
        * kjs/Parser.h:
        (JSC::Parser::parse): Tweaked the parser to make it possible to parse
        without an ExecState, and to allow the client to specify a debugger to
        notify (or not) about the source we parse. This allows the inspector
        to recompile even though no JavaScript is executing, then notify the
        debugger about all source code when it's done.

        * kjs/Shell.cpp:
        (prettyPrintScript): Updated for tweak to parsing API.

        * kjs/SourceRange.h:
        (JSC::SourceCode::isNull): Added to help with ASSERTs.

        * kjs/collector.cpp:
        (JSC::Heap::heapAllocate):
        (JSC::Heap::sweep):
        (JSC::Heap::primaryHeapBegin):
        (JSC::Heap::primaryHeapEnd):
        * kjs/collector.h:
        (JSC::): Moved a bunch of declarations around to enable compilation of
        CollectorHeapIterator.

        * kjs/interpreter.cpp:
        (JSC::Interpreter::checkSyntax):
        (JSC::Interpreter::evaluate): Updated for tweak to parsing API.

        * kjs/lexer.h:
        (JSC::Lexer::sourceCode): BUG FIX: Calculate SourceCode ranges relative
        to the SourceCode range in which we're lexing, otherwise nested functions
        that are compiled individually get SourceCode ranges that don't reflect
        their nesting.

        * kjs/nodes.cpp:
        (JSC::FunctionBodyNode::FunctionBodyNode):
        (JSC::FunctionBodyNode::finishParsing):
        (JSC::FunctionBodyNode::create):
        (JSC::FunctionBodyNode::copyParameters):
        * kjs/nodes.h:
        (JSC::ScopeNode::setSource):
        (JSC::FunctionBodyNode::parameterCount): Added some helper functions for
        copying one FunctionBodyNode's parameters to another. The recompiler uses
        these when calling "finishParsing".

2008-10-15  Joerg Bornemann  <joerg.bornemann@trolltech.com>

        Reviewed by Darin Adler.

        - part of https://bugs.webkit.org/show_bug.cgi?id=20746
          Fix compilation on Windows CE.

        str(n)icmp, strdup and vsnprintf are not available on Windows CE,
        they are called _str(n)icmp, etc. instead

        * wtf/StringExtras.h: Added inline function implementations.

2008-10-15  Gabor Loki  <loki@inf.u-szeged.hu>

        Reviewed by Cameron Zwarich.

        <https://bugs.webkit.org/show_bug.cgi?id=20912>
        Use simple uint32_t multiplication on op_mul if both operands are
        immediate number and they are between zero and 0x7FFF.

        * VM/Machine.cpp:
        (JSC::Machine::privateExecute):

2008-10-09  Darin Fisher  <darin@chromium.org>

        Reviewed by Sam Weinig.

        Make pan scrolling a platform configurable option.
        https://bugs.webkit.org/show_bug.cgi?id=21515

        * wtf/Platform.h: Add ENABLE_PAN_SCROLLING

2008-10-14  Maciej Stachowiak  <mjs@apple.com>

        Rubber stamped by Sam Weinig.
        
        - revert r37572 and r37581 for now
        
        Turns out GCC 4.2 is still a (small) regression, we'll have to do
        more work to turn it on.

        * Configurations/DebugRelease.xcconfig:
        * JavaScriptCore.xcodeproj/project.pbxproj:
        * VM/CTI.cpp:
        * VM/CTI.h:
        * VM/Machine.cpp:
        (JSC::Machine::cti_op_convert_this):
        (JSC::Machine::cti_op_end):
        (JSC::Machine::cti_op_add):
        (JSC::Machine::cti_op_pre_inc):
        (JSC::Machine::cti_timeout_check):
        (JSC::Machine::cti_register_file_check):
        (JSC::Machine::cti_op_loop_if_less):
        (JSC::Machine::cti_op_loop_if_lesseq):
        (JSC::Machine::cti_op_new_object):
        (JSC::Machine::cti_op_put_by_id):
        (JSC::Machine::cti_op_put_by_id_second):
        (JSC::Machine::cti_op_put_by_id_generic):
        (JSC::Machine::cti_op_put_by_id_fail):
        (JSC::Machine::cti_op_get_by_id):
        (JSC::Machine::cti_op_get_by_id_second):
        (JSC::Machine::cti_op_get_by_id_generic):
        (JSC::Machine::cti_op_get_by_id_fail):
        (JSC::Machine::cti_op_instanceof):
        (JSC::Machine::cti_op_del_by_id):
        (JSC::Machine::cti_op_mul):
        (JSC::Machine::cti_op_new_func):
        (JSC::Machine::cti_op_call_JSFunction):
        (JSC::Machine::cti_vm_compile):
        (JSC::Machine::cti_op_push_activation):
        (JSC::Machine::cti_op_call_NotJSFunction):
        (JSC::Machine::cti_op_create_arguments):
        (JSC::Machine::cti_op_tear_off_activation):
        (JSC::Machine::cti_op_tear_off_arguments):
        (JSC::Machine::cti_op_ret_profiler):
        (JSC::Machine::cti_op_ret_scopeChain):
        (JSC::Machine::cti_op_new_array):
        (JSC::Machine::cti_op_resolve):
        (JSC::Machine::cti_op_construct_JSConstruct):
        (JSC::Machine::cti_op_construct_NotJSConstruct):
        (JSC::Machine::cti_op_get_by_val):
        (JSC::Machine::cti_op_resolve_func):
        (JSC::Machine::cti_op_sub):
        (JSC::Machine::cti_op_put_by_val):
        (JSC::Machine::cti_op_put_by_val_array):
        (JSC::Machine::cti_op_lesseq):
        (JSC::Machine::cti_op_loop_if_true):
        (JSC::Machine::cti_op_negate):
        (JSC::Machine::cti_op_resolve_base):
        (JSC::Machine::cti_op_resolve_skip):
        (JSC::Machine::cti_op_resolve_global):
        (JSC::Machine::cti_op_div):
        (JSC::Machine::cti_op_pre_dec):
        (JSC::Machine::cti_op_jless):
        (JSC::Machine::cti_op_not):
        (JSC::Machine::cti_op_jtrue):
        (JSC::Machine::cti_op_post_inc):
        (JSC::Machine::cti_op_eq):
        (JSC::Machine::cti_op_lshift):
        (JSC::Machine::cti_op_bitand):
        (JSC::Machine::cti_op_rshift):
        (JSC::Machine::cti_op_bitnot):
        (JSC::Machine::cti_op_resolve_with_base):
        (JSC::Machine::cti_op_new_func_exp):
        (JSC::Machine::cti_op_mod):
        (JSC::Machine::cti_op_less):
        (JSC::Machine::cti_op_neq):
        (JSC::Machine::cti_op_post_dec):
        (JSC::Machine::cti_op_urshift):
        (JSC::Machine::cti_op_bitxor):
        (JSC::Machine::cti_op_new_regexp):
        (JSC::Machine::cti_op_bitor):
        (JSC::Machine::cti_op_call_eval):
        (JSC::Machine::cti_op_throw):
        (JSC::Machine::cti_op_get_pnames):
        (JSC::Machine::cti_op_next_pname):
        (JSC::Machine::cti_op_push_scope):
        (JSC::Machine::cti_op_pop_scope):
        (JSC::Machine::cti_op_typeof):
        (JSC::Machine::cti_op_is_undefined):
        (JSC::Machine::cti_op_is_boolean):
        (JSC::Machine::cti_op_is_number):
        (JSC::Machine::cti_op_is_string):
        (JSC::Machine::cti_op_is_object):
        (JSC::Machine::cti_op_is_function):
        (JSC::Machine::cti_op_stricteq):
        (JSC::Machine::cti_op_nstricteq):
        (JSC::Machine::cti_op_to_jsnumber):
        (JSC::Machine::cti_op_in):
        (JSC::Machine::cti_op_push_new_scope):
        (JSC::Machine::cti_op_jmp_scopes):
        (JSC::Machine::cti_op_put_by_index):
        (JSC::Machine::cti_op_switch_imm):
        (JSC::Machine::cti_op_switch_char):
        (JSC::Machine::cti_op_switch_string):
        (JSC::Machine::cti_op_del_by_val):
        (JSC::Machine::cti_op_put_getter):
        (JSC::Machine::cti_op_put_setter):
        (JSC::Machine::cti_op_new_error):
        (JSC::Machine::cti_op_debug):
        (JSC::Machine::cti_vm_throw):
        * VM/Machine.h:
        * masm/X86Assembler.h:
        (JSC::X86Assembler::emitRestoreArgumentReference):
        (JSC::X86Assembler::emitRestoreArgumentReferenceForTrampoline):
        * wtf/Platform.h:

2008-10-14  Alexey Proskuryakov  <ap@webkit.org>

        Reviewed by Darin Adler.

        https://bugs.webkit.org/show_bug.cgi?id=20256
        Array.push and other standard methods disappear

        * kjs/JSGlobalData.cpp:
        (JSC::JSGlobalData::JSGlobalData):
        (JSC::JSGlobalData::~JSGlobalData):
        Don't use static hash tables even on platforms that don't enable JSC_MULTIPLE_THREADS -
        these tables reference IdentifierTable, which is always per-GlobalData.

2008-10-14  Maciej Stachowiak  <mjs@apple.com>

        Reviewed by Cameron Zwarich.
        
        - always use CTI_ARGUMENTS and CTI_ARGUMENTS_FASTCALL
        
        This is a small regression for GCC 4.0, but simplifies the code
        for future improvements and lets us focus on GCC 4.2+ and MSVC.

        * VM/CTI.cpp:
        * VM/CTI.h:
        * VM/Machine.cpp:
        (JSC::Machine::cti_op_convert_this):
        (JSC::Machine::cti_op_end):
        (JSC::Machine::cti_op_add):
        (JSC::Machine::cti_op_pre_inc):
        (JSC::Machine::cti_timeout_check):
        (JSC::Machine::cti_register_file_check):
        (JSC::Machine::cti_op_loop_if_less):
        (JSC::Machine::cti_op_loop_if_lesseq):
        (JSC::Machine::cti_op_new_object):
        (JSC::Machine::cti_op_put_by_id):
        (JSC::Machine::cti_op_put_by_id_second):
        (JSC::Machine::cti_op_put_by_id_generic):
        (JSC::Machine::cti_op_put_by_id_fail):
        (JSC::Machine::cti_op_get_by_id):
        (JSC::Machine::cti_op_get_by_id_second):
        (JSC::Machine::cti_op_get_by_id_generic):
        (JSC::Machine::cti_op_get_by_id_fail):
        (JSC::Machine::cti_op_instanceof):
        (JSC::Machine::cti_op_del_by_id):
        (JSC::Machine::cti_op_mul):
        (JSC::Machine::cti_op_new_func):
        (JSC::Machine::cti_op_call_JSFunction):
        (JSC::Machine::cti_vm_compile):
        (JSC::Machine::cti_op_push_activation):
        (JSC::Machine::cti_op_call_NotJSFunction):
        (JSC::Machine::cti_op_create_arguments):
        (JSC::Machine::cti_op_tear_off_activation):
        (JSC::Machine::cti_op_tear_off_arguments):
        (JSC::Machine::cti_op_ret_profiler):
        (JSC::Machine::cti_op_ret_scopeChain):
        (JSC::Machine::cti_op_new_array):
        (JSC::Machine::cti_op_resolve):
        (JSC::Machine::cti_op_construct_JSConstruct):
        (JSC::Machine::cti_op_construct_NotJSConstruct):
        (JSC::Machine::cti_op_get_by_val):
        (JSC::Machine::cti_op_resolve_func):
        (JSC::Machine::cti_op_sub):
        (JSC::Machine::cti_op_put_by_val):
        (JSC::Machine::cti_op_put_by_val_array):
        (JSC::Machine::cti_op_lesseq):
        (JSC::Machine::cti_op_loop_if_true):
        (JSC::Machine::cti_op_negate):
        (JSC::Machine::cti_op_resolve_base):
        (JSC::Machine::cti_op_resolve_skip):
        (JSC::Machine::cti_op_resolve_global):
        (JSC::Machine::cti_op_div):
        (JSC::Machine::cti_op_pre_dec):
        (JSC::Machine::cti_op_jless):
        (JSC::Machine::cti_op_not):
        (JSC::Machine::cti_op_jtrue):
        (JSC::Machine::cti_op_post_inc):
        (JSC::Machine::cti_op_eq):
        (JSC::Machine::cti_op_lshift):
        (JSC::Machine::cti_op_bitand):
        (JSC::Machine::cti_op_rshift):
        (JSC::Machine::cti_op_bitnot):
        (JSC::Machine::cti_op_resolve_with_base):
        (JSC::Machine::cti_op_new_func_exp):
        (JSC::Machine::cti_op_mod):
        (JSC::Machine::cti_op_less):
        (JSC::Machine::cti_op_neq):
        (JSC::Machine::cti_op_post_dec):
        (JSC::Machine::cti_op_urshift):
        (JSC::Machine::cti_op_bitxor):
        (JSC::Machine::cti_op_new_regexp):
        (JSC::Machine::cti_op_bitor):
        (JSC::Machine::cti_op_call_eval):
        (JSC::Machine::cti_op_throw):
        (JSC::Machine::cti_op_get_pnames):
        (JSC::Machine::cti_op_next_pname):
        (JSC::Machine::cti_op_push_scope):
        (JSC::Machine::cti_op_pop_scope):
        (JSC::Machine::cti_op_typeof):
        (JSC::Machine::cti_op_is_undefined):
        (JSC::Machine::cti_op_is_boolean):
        (JSC::Machine::cti_op_is_number):
        (JSC::Machine::cti_op_is_string):
        (JSC::Machine::cti_op_is_object):
        (JSC::Machine::cti_op_is_function):
        (JSC::Machine::cti_op_stricteq):
        (JSC::Machine::cti_op_nstricteq):
        (JSC::Machine::cti_op_to_jsnumber):
        (JSC::Machine::cti_op_in):
        (JSC::Machine::cti_op_push_new_scope):
        (JSC::Machine::cti_op_jmp_scopes):
        (JSC::Machine::cti_op_put_by_index):
        (JSC::Machine::cti_op_switch_imm):
        (JSC::Machine::cti_op_switch_char):
        (JSC::Machine::cti_op_switch_string):
        (JSC::Machine::cti_op_del_by_val):
        (JSC::Machine::cti_op_put_getter):
        (JSC::Machine::cti_op_put_setter):
        (JSC::Machine::cti_op_new_error):
        (JSC::Machine::cti_op_debug):
        (JSC::Machine::cti_vm_throw):
        * VM/Machine.h:
        * masm/X86Assembler.h:
        (JSC::X86Assembler::emitRestoreArgumentReference):
        (JSC::X86Assembler::emitRestoreArgumentReferenceForTrampoline):
        * wtf/Platform.h:

2008-10-13  Maciej Stachowiak  <mjs@apple.com>

        Reviewed by Cameron Zwarich.
        
        - make Machine::getArgumentsData an Arguments method and inline it
        
        ~2% on v8 raytrace

        * VM/Machine.cpp:
        * kjs/Arguments.h:
        (JSC::Machine::getArgumentsData):

2008-10-13  Alp Toker  <alp@nuanti.com>

        Fix autotools dist build target by listing recently added header
        files only. Not reviewed.

        * GNUmakefile.am:

2008-10-13  Maciej Stachowiak  <mjs@apple.com>

        Rubber stamped by Mark Rowe.
        
        - fixed <rdar://problem/5806316> JavaScriptCore should not force building with gcc 4.0
        - use gcc 4.2 when building with Xcode 3.1 or newer on Leopard, even though this is not the default

        * Configurations/DebugRelease.xcconfig:
        * JavaScriptCore.xcodeproj/project.pbxproj:

2008-10-13  Cameron Zwarich  <zwarich@apple.com>

        Reviewed by Geoff Garen.

        Bug 21541: Move RegisterFile growth check to callee
        <https://bugs.webkit.org/show_bug.cgi?id=21541>

        Move the RegisterFile growth check to the callee in the common case,
        where some of the information is known statically at JIT time. There is
        still a check in the caller in the case where the caller provides too
        few arguments.

        This is a 2.1% speedup on the V8 benchmark, including a 5.1% speedup on
        the Richards benchmark, a 4.1% speedup on the DeltaBlue benchmark, and a
        1.4% speedup on the Earley-Boyer benchmark. It is also a 0.5% speedup on
        SunSpider.

        * VM/CTI.cpp:
        (JSC::CTI::privateCompile):
        * VM/Machine.cpp:
        (JSC::Machine::cti_register_file_check):
        (JSC::Machine::cti_op_call_JSFunction):
        (JSC::Machine::cti_op_construct_JSConstruct):
        * VM/Machine.h:
        * VM/RegisterFile.h:
        * masm/X86Assembler.h:
        (JSC::X86Assembler::):
        (JSC::X86Assembler::cmpl_mr):
        (JSC::X86Assembler::emitUnlinkedJg):

2008-10-13  Sam Weinig  <sam@webkit.org>

        Reviewed by Dan Bernstein.

        Fix for https://bugs.webkit.org/show_bug.cgi?id=21577
        5 false positive StructureID leaks

        - Add leak ignore set to StructureID to selectively ignore leaking some StructureIDs.
        - Add create method to JSGlolalData to be used when the data will be intentionally
          leaked and ignore all leaks caused the StructureIDs stored in it.

        * JavaScriptCore.exp:
        * kjs/JSGlobalData.cpp:
        (JSC::JSGlobalData::createLeaked):
        * kjs/JSGlobalData.h:
        * kjs/StructureID.cpp:
        (JSC::StructureID::StructureID):
        (JSC::StructureID::~StructureID):
        (JSC::StructureID::startIgnoringLeaks):
        (JSC::StructureID::stopIgnoringLeaks):
        * kjs/StructureID.h:

2008-10-13  Marco Barisione  <marco.barisione@collabora.co.uk>

        Reviewed by Darin Adler. Landed by Jan Alonzo.

        WebKit GTK Port needs a smartpointer to handle g_free (GFreePtr?)
        http://bugs.webkit.org/show_bug.cgi?id=20483

        Add a GOwnPtr smart pointer (similar to OwnPtr) to handle memory
        allocated by GLib and start the conversion to use it.

        * GNUmakefile.am:
        * wtf/GOwnPtr.cpp: Added.
        (WTF::GError):
        (WTF::GList):
        (WTF::GCond):
        (WTF::GMutex):
        (WTF::GPatternSpec):
        (WTF::GDir):
        * wtf/GOwnPtr.h: Added.
        (WTF::freeOwnedPtr):
        (WTF::GOwnPtr::GOwnPtr):
        (WTF::GOwnPtr::~GOwnPtr):
        (WTF::GOwnPtr::get):
        (WTF::GOwnPtr::release):
        (WTF::GOwnPtr::rawPtr):
        (WTF::GOwnPtr::set):
        (WTF::GOwnPtr::clear):
        (WTF::GOwnPtr::operator*):
        (WTF::GOwnPtr::operator->):
        (WTF::GOwnPtr::operator!):
        (WTF::GOwnPtr::operator UnspecifiedBoolType):
        (WTF::GOwnPtr::swap):
        (WTF::swap):
        (WTF::operator==):
        (WTF::operator!=):
        (WTF::getPtr):
        * wtf/Threading.h:
        * wtf/ThreadingGtk.cpp:
        (WTF::Mutex::~Mutex):
        (WTF::Mutex::lock):
        (WTF::Mutex::tryLock):
        (WTF::Mutex::unlock):
        (WTF::ThreadCondition::~ThreadCondition):
        (WTF::ThreadCondition::wait):
        (WTF::ThreadCondition::timedWait):
        (WTF::ThreadCondition::signal):
        (WTF::ThreadCondition::broadcast):

2008-10-12  Gabriella Toth  <gtoth@inf.u-szeged.hu>

        Reviewed by Darin Adler.

        - part of https://bugs.webkit.org/show_bug.cgi?id=21055
          Bug 21055: not invoked functions

        * kjs/nodes.cpp: Deleted a function that is not invoked:
        statementListInitializeVariableAccessStack.

2008-10-12  Darin Adler  <darin@apple.com>

        Reviewed by Sam Weinig.

        * wtf/unicode/icu/UnicodeIcu.h: Fixed indentation to match WebKit coding style.
        * wtf/unicode/qt4/UnicodeQt4.h: Ditto.

2008-10-12  Darin Adler  <darin@apple.com>

        Reviewed by Sam Weinig.

        - https://bugs.webkit.org/show_bug.cgi?id=21556
          Bug 21556: non-ASCII digits are allowed in places where only ASCII should be

        * wtf/unicode/icu/UnicodeIcu.h: Removed isDigit, digitValue, and isFormatChar.
        * wtf/unicode/qt4/UnicodeQt4.h: Ditto.

2008-10-12  Anders Carlsson  <andersca@apple.com>

        Reviewed by Darin Adler.

        Make the append method that takes a Vector more strict - it now requires the elements 
        of the vector to be appended same type as the elements of the Vector they're being appended to.
        
        This would cause problems when dealing with Vectors containing other Vectors.
        
        * wtf/Vector.h:
        (WTF::::append):

2008-10-11  Cameron Zwarich  <zwarich@apple.com>

        Reviewed by Sam Weinig.

        Clean up RegExpMatchesArray.h to match our coding style.

        * kjs/RegExpMatchesArray.h:
        (JSC::RegExpMatchesArray::getOwnPropertySlot):
        (JSC::RegExpMatchesArray::put):
        (JSC::RegExpMatchesArray::deleteProperty):
        (JSC::RegExpMatchesArray::getPropertyNames):

2008-10-11  Cameron Zwarich  <zwarich@apple.com>

        Reviewed by Sam Weinig.

        Bug 21525: 55 StructureID leaks on Wikitravel's main page
        <https://bugs.webkit.org/show_bug.cgi?id=21525>

        Bug 21533: Simple JavaScript code leaks StructureIDs
        <https://bugs.webkit.org/show_bug.cgi?id=21533>

        StructureID::getEnumerablePropertyNames() ends up calling back to itself
        via JSObject::getPropertyNames(), which causes the PropertyNameArray to
        be cached twice. This leads to a memory leak in almost every use of
        JSObject::getPropertyNames() on an object. The fix here is based on a
        suggestion of Sam Weinig.

        This patch also fixes every StructureID leaks that occurs while running
        the Mozilla MemBuster test.

        * kjs/PropertyNameArray.h:
        (JSC::PropertyNameArray::PropertyNameArray):
        (JSC::PropertyNameArray::setCacheable):
        (JSC::PropertyNameArray::cacheable):
        * kjs/StructureID.cpp:
        (JSC::StructureID::getEnumerablePropertyNames):

2008-10-10  Oliver Hunt  <oliver@apple.com>

        Reviewed by Cameron Zwarich.

        Use fastcall calling convention on GCC > 4.0

        Results in a 2-3% improvement in GCC 4.2 performance, so
        that it is no longer a regression vs. GCC 4.0

        * VM/CTI.cpp:
        * VM/Machine.h:
        * wtf/Platform.h:

2008-10-10  Sam Weinig  <sam@webkit.org>

        Reviewed by Darin Adler.

        - Add a workaround for a bug in ceil in Darwin libc.
        - Remove old workarounds for JS math functions that are not needed
          anymore.

        The math functions are heavily tested by fast/js/math.html.

        * kjs/MathObject.cpp:
        (JSC::mathProtoFuncAbs): Remove workaround.
        (JSC::mathProtoFuncCeil): Ditto.
        (JSC::mathProtoFuncFloor): Ditto.
        * wtf/MathExtras.h:
        (wtf_ceil): Add ceil workaround for darwin.

2008-10-10  Sam Weinig  <sam@webkit.org>

        Reviewed by Darin Adler

        Add Assertions to JSObject constructor.

        * kjs/JSObject.h:
        (JSC::JSObject::JSObject):

2008-10-10  Sam Weinig  <sam@webkit.org>

        Reviewed by Cameron Zwarich.

        Remove now unused m_getterSetterFlag variable from PropertyMap.

        * kjs/PropertyMap.cpp:
        (JSC::PropertyMap::operator=):
        * kjs/PropertyMap.h:
        (JSC::PropertyMap::PropertyMap):

2008-10-09  Sam Weinig  <sam@webkit.org>

        Reviewed by Maciej Stachowiak.

        Add leaks checking to StructureID.

        * kjs/StructureID.cpp:
        (JSC::StructureID::StructureID):
        (JSC::StructureID::~StructureID):

2008-10-09  Alp Toker  <alp@nuanti.com>

        Reviewed by Mark Rowe.

        https://bugs.webkit.org/show_bug.cgi?id=20760
        Implement support for x86 Linux in CTI

        Prepare to enable CTI/WREC on supported architectures.

        Make it possible to use the CTI_ARGUMENT workaround with GCC as well
        as MSVC by fixing some preprocessor conditionals.

        Note that CTI/WREC no longer requires CTI_ARGUMENT on Linux so we
        don't actually enable it except when building with MSVC. GCC on Win32
        remains untested.

        Adapt inline ASM code to use the global symbol underscore prefix only
        on Darwin and to call the properly mangled Machine::cti_vm_throw
        symbol name depending on CTI_ARGUMENT.

        Also avoid global inclusion of the JIT infrastructure headers
        throughout WebCore and WebKit causing recompilation of about ~1500
        source files after modification to X86Assembler.h, CTI.h, WREC.h,
        which are only used deep inside JavaScriptCore.

        * GNUmakefile.am:
        * VM/CTI.cpp:
        * VM/CTI.h:
        * VM/Machine.cpp:
        * VM/Machine.h:
        * kjs/regexp.cpp:
        (JSC::RegExp::RegExp):
        (JSC::RegExp::~RegExp):
        (JSC::RegExp::match):
        * kjs/regexp.h:
        * masm/X86Assembler.h:
        (JSC::X86Assembler::emitConvertToFastCall):
        (JSC::X86Assembler::emitRestoreArgumentReferenceForTrampoline):
        (JSC::X86Assembler::emitRestoreArgumentReference):

2008-10-09  Gavin Barraclough  <barraclough@apple.com>

        Reviewed by Cameron Zwarich.

        Fix for bug #21160, x=0;1/(x*-1) == -Infinity

        * ChangeLog:
        * VM/CTI.cpp:
        (JSC::CTI::emitFastArithDeTagImmediate):
        (JSC::CTI::emitFastArithDeTagImmediateJumpIfZero):
        (JSC::CTI::compileBinaryArithOp):
        (JSC::CTI::compileBinaryArithOpSlowCase):
        (JSC::CTI::privateCompileMainPass):
        (JSC::CTI::privateCompileSlowCases):
        * VM/CTI.h:
        * masm/X86Assembler.h:
        (JSC::X86Assembler::):
        (JSC::X86Assembler::emitUnlinkedJs):

2008-10-09  Cameron Zwarich  <zwarich@apple.com>

        Reviewed by Oliver Hunt.

        Bug 21459: REGRESSION (r37324): Safari crashes inside JavaScriptCore while browsing hulu.com
        <https://bugs.webkit.org/show_bug.cgi?id=21459>

        After r37324, an Arguments object does not mark an associated activation
        object. This change was made because Arguments no longer directly used
        the activation object in any way. However, if an activation is torn off,
        then the backing store of Arguments becomes the register array of the
        activation object. Arguments directly marks all of the arguments, but
        the activation object is being collected, which causes its register
        array to be freed and new memory to be allocated in its place.

        Unfortunately, it does not seem possible to reproduce this issue in a
        layout test.

        * kjs/Arguments.cpp:
        (JSC::Arguments::mark):
        * kjs/Arguments.h:
        (JSC::Arguments::setActivation):
        (JSC::Arguments::Arguments):
        (JSC::JSActivation::copyRegisters):

2008-10-09  Ariya Hidayat  <ariya.hidayat@trolltech.com>

        Reviewed by Simon.

        Build fix for MinGW.

        * wtf/AlwaysInline.h:

2008-10-08  Cameron Zwarich  <zwarich@apple.com>

        Reviewed by Maciej Stachowiak.

        Bug 21497: REGRESSION (r37433): Bytecode JSC tests are severely broken
        <https://bugs.webkit.org/show_bug.cgi?id=21497>

        Fix a typo in r37433 that causes the failure of a large number of JSC
        tests with the bytecode interpreter enabled.

        * VM/Machine.cpp:
        (JSC::Machine::privateExecute):

2008-10-08  Mark Rowe  <mrowe@apple.com>

        Windows build fix.

        * VM/CTI.cpp:
        (JSC::): Update type of argument to ctiTrampoline.

2008-10-08  Darin Adler  <darin@apple.com>

        Reviewed by Cameron Zwarich.

        - https://bugs.webkit.org/show_bug.cgi?id=21403
          Bug 21403: use new CallFrame class rather than Register* for call frame manipulation

        Add CallFrame as a synonym for ExecState. Arguably, some day we should switch every
        client over to the new name.

        Use CallFrame* consistently rather than Register* or ExecState* in low-level code such
        as Machine.cpp and CTI.cpp. Similarly, use callFrame rather than r as its name and use
        accessor functions to get at things in the frame.

        Eliminate other uses of ExecState* that aren't needed, replacing in some cases with
        JSGlobalData* and in other cases eliminating them entirely.

        * API/JSObjectRef.cpp:
        (JSObjectMakeFunctionWithCallback):
        (JSObjectMakeFunction):
        (JSObjectHasProperty):
        (JSObjectGetProperty):
        (JSObjectSetProperty):
        (JSObjectDeleteProperty):
        * API/OpaqueJSString.cpp:
        * API/OpaqueJSString.h:
        * VM/CTI.cpp:
        (JSC::CTI::getConstant):
        (JSC::CTI::emitGetArg):
        (JSC::CTI::emitGetPutArg):
        (JSC::CTI::getConstantImmediateNumericArg):
        (JSC::CTI::printOpcodeOperandTypes):
        (JSC::CTI::CTI):
        (JSC::CTI::compileOpCall):
        (JSC::CTI::compileBinaryArithOp):
        (JSC::CTI::privateCompileMainPass):
        (JSC::CTI::privateCompile):
        (JSC::CTI::privateCompileGetByIdProto):
        (JSC::CTI::privateCompileGetByIdChain):
        (JSC::CTI::compileRegExp):
        * VM/CTI.h:
        * VM/CodeBlock.h:
        * VM/CodeGenerator.cpp:
        (JSC::CodeGenerator::emitEqualityOp):
        (JSC::CodeGenerator::emitLoad):
        (JSC::CodeGenerator::emitUnexpectedLoad):
        (JSC::CodeGenerator::emitConstruct):
        * VM/CodeGenerator.h:
        * VM/Machine.cpp:
        (JSC::jsLess):
        (JSC::jsLessEq):
        (JSC::jsAddSlowCase):
        (JSC::jsAdd):
        (JSC::jsTypeStringForValue):
        (JSC::Machine::resolve):
        (JSC::Machine::resolveSkip):
        (JSC::Machine::resolveGlobal):
        (JSC::inlineResolveBase):
        (JSC::Machine::resolveBase):
        (JSC::Machine::resolveBaseAndProperty):
        (JSC::Machine::resolveBaseAndFunc):
        (JSC::Machine::slideRegisterWindowForCall):
        (JSC::isNotObject):
        (JSC::Machine::callEval):
        (JSC::Machine::dumpCallFrame):
        (JSC::Machine::dumpRegisters):
        (JSC::Machine::unwindCallFrame):
        (JSC::Machine::throwException):
        (JSC::DynamicGlobalObjectScope::DynamicGlobalObjectScope):
        (JSC::DynamicGlobalObjectScope::~DynamicGlobalObjectScope):
        (JSC::Machine::execute):
        (JSC::Machine::debug):
        (JSC::Machine::createExceptionScope):
        (JSC::cachePrototypeChain):
        (JSC::Machine::tryCachePutByID):
        (JSC::Machine::tryCacheGetByID):
        (JSC::Machine::privateExecute):
        (JSC::Machine::retrieveArguments):
        (JSC::Machine::retrieveCaller):
        (JSC::Machine::retrieveLastCaller):
        (JSC::Machine::findFunctionCallFrame):
        (JSC::Machine::getArgumentsData):
        (JSC::Machine::tryCTICachePutByID):
        (JSC::Machine::getCTIArrayLengthTrampoline):
        (JSC::Machine::getCTIStringLengthTrampoline):
        (JSC::Machine::tryCTICacheGetByID):
        (JSC::Machine::cti_op_convert_this):
        (JSC::Machine::cti_op_end):
        (JSC::Machine::cti_op_add):
        (JSC::Machine::cti_op_pre_inc):
        (JSC::Machine::cti_timeout_check):
        (JSC::Machine::cti_op_loop_if_less):
        (JSC::Machine::cti_op_loop_if_lesseq):
        (JSC::Machine::cti_op_new_object):
        (JSC::Machine::cti_op_put_by_id):
        (JSC::Machine::cti_op_put_by_id_second):
        (JSC::Machine::cti_op_put_by_id_generic):
        (JSC::Machine::cti_op_put_by_id_fail):
        (JSC::Machine::cti_op_get_by_id):
        (JSC::Machine::cti_op_get_by_id_second):
        (JSC::Machine::cti_op_get_by_id_generic):
        (JSC::Machine::cti_op_get_by_id_fail):
        (JSC::Machine::cti_op_instanceof):
        (JSC::Machine::cti_op_del_by_id):
        (JSC::Machine::cti_op_mul):
        (JSC::Machine::cti_op_new_func):
        (JSC::Machine::cti_op_call_JSFunction):
        (JSC::Machine::cti_vm_compile):
        (JSC::Machine::cti_op_push_activation):
        (JSC::Machine::cti_op_call_NotJSFunction):
        (JSC::Machine::cti_op_create_arguments):
        (JSC::Machine::cti_op_tear_off_activation):
        (JSC::Machine::cti_op_tear_off_arguments):
        (JSC::Machine::cti_op_ret_profiler):
        (JSC::Machine::cti_op_ret_scopeChain):
        (JSC::Machine::cti_op_new_array):
        (JSC::Machine::cti_op_resolve):
        (JSC::Machine::cti_op_construct_JSConstruct):
        (JSC::Machine::cti_op_construct_NotJSConstruct):
        (JSC::Machine::cti_op_get_by_val):
        (JSC::Machine::cti_op_resolve_func):
        (JSC::Machine::cti_op_sub):
        (JSC::Machine::cti_op_put_by_val):
        (JSC::Machine::cti_op_put_by_val_array):
        (JSC::Machine::cti_op_lesseq):
        (JSC::Machine::cti_op_loop_if_true):
        (JSC::Machine::cti_op_negate):
        (JSC::Machine::cti_op_resolve_base):
        (JSC::Machine::cti_op_resolve_skip):
        (JSC::Machine::cti_op_resolve_global):
        (JSC::Machine::cti_op_div):
        (JSC::Machine::cti_op_pre_dec):
        (JSC::Machine::cti_op_jless):
        (JSC::Machine::cti_op_not):
        (JSC::Machine::cti_op_jtrue):
        (JSC::Machine::cti_op_post_inc):
        (JSC::Machine::cti_op_eq):
        (JSC::Machine::cti_op_lshift):
        (JSC::Machine::cti_op_bitand):
        (JSC::Machine::cti_op_rshift):
        (JSC::Machine::cti_op_bitnot):
        (JSC::Machine::cti_op_resolve_with_base):
        (JSC::Machine::cti_op_new_func_exp):
        (JSC::Machine::cti_op_mod):
        (JSC::Machine::cti_op_less):
        (JSC::Machine::cti_op_neq):
        (JSC::Machine::cti_op_post_dec):
        (JSC::Machine::cti_op_urshift):
        (JSC::Machine::cti_op_bitxor):
        (JSC::Machine::cti_op_new_regexp):
        (JSC::Machine::cti_op_bitor):
        (JSC::Machine::cti_op_call_eval):
        (JSC::Machine::cti_op_throw):
        (JSC::Machine::cti_op_get_pnames):
        (JSC::Machine::cti_op_next_pname):
        (JSC::Machine::cti_op_push_scope):
        (JSC::Machine::cti_op_pop_scope):
        (JSC::Machine::cti_op_typeof):
        (JSC::Machine::cti_op_to_jsnumber):
        (JSC::Machine::cti_op_in):
        (JSC::Machine::cti_op_push_new_scope):
        (JSC::Machine::cti_op_jmp_scopes):
        (JSC::Machine::cti_op_put_by_index):
        (JSC::Machine::cti_op_switch_imm):
        (JSC::Machine::cti_op_switch_char):
        (JSC::Machine::cti_op_switch_string):
        (JSC::Machine::cti_op_del_by_val):
        (JSC::Machine::cti_op_put_getter):
        (JSC::Machine::cti_op_put_setter):
        (JSC::Machine::cti_op_new_error):
        (JSC::Machine::cti_op_debug):
        (JSC::Machine::cti_vm_throw):
        * VM/Machine.h:
        * VM/Register.h:
        * VM/RegisterFile.h:
        * kjs/Arguments.h:
        * kjs/DebuggerCallFrame.cpp:
        (JSC::DebuggerCallFrame::functionName):
        (JSC::DebuggerCallFrame::type):
        (JSC::DebuggerCallFrame::thisObject):
        (JSC::DebuggerCallFrame::evaluate):
        * kjs/DebuggerCallFrame.h:
        * kjs/ExecState.cpp:
        (JSC::CallFrame::thisValue):
        * kjs/ExecState.h:
        * kjs/FunctionConstructor.cpp:
        (JSC::constructFunction):
        * kjs/JSActivation.cpp:
        (JSC::JSActivation::JSActivation):
        (JSC::JSActivation::argumentsGetter):
        * kjs/JSActivation.h:
        * kjs/JSGlobalObject.cpp:
        (JSC::JSGlobalObject::init):
        * kjs/JSGlobalObjectFunctions.cpp:
        (JSC::globalFuncEval):
        * kjs/JSVariableObject.h:
        * kjs/Parser.cpp:
        (JSC::Parser::parse):
        * kjs/RegExpConstructor.cpp:
        (JSC::constructRegExp):
        * kjs/RegExpPrototype.cpp:
        (JSC::regExpProtoFuncCompile):
        * kjs/Shell.cpp:
        (prettyPrintScript):
        * kjs/StringPrototype.cpp:
        (JSC::stringProtoFuncMatch):
        (JSC::stringProtoFuncSearch):
        * kjs/identifier.cpp:
        (JSC::Identifier::checkSameIdentifierTable):
        * kjs/interpreter.cpp:
        (JSC::Interpreter::checkSyntax):
        (JSC::Interpreter::evaluate):
        * kjs/nodes.cpp:
        (JSC::ThrowableExpressionData::emitThrowError):
        (JSC::RegExpNode::emitCode):
        (JSC::ArrayNode::emitCode):
        (JSC::InstanceOfNode::emitCode):
        * kjs/nodes.h:
        * kjs/regexp.cpp:
        (JSC::RegExp::RegExp):
        (JSC::RegExp::create):
        * kjs/regexp.h:
        * profiler/HeavyProfile.h:
        * profiler/Profile.h:
        * wrec/WREC.cpp:
        * wrec/WREC.h:

2008-10-08  Mark Rowe  <mrowe@apple.com>

        Typed by Maciej Stachowiak, reviewed by Mark Rowe.

        Fix crash in fast/js/constant-folding.html with CTI disabled.

        * VM/Machine.cpp:
        (JSC::Machine::privateExecute):

2008-10-08  Timothy Hatcher  <timothy@apple.com>

        Roll out r37427 because it causes an infinite recursion loading about:blank.

        https://bugs.webkit.org/show_bug.cgi?id=21476

2008-10-08  Darin Adler  <darin@apple.com>

        Reviewed by Cameron Zwarich.

        - https://bugs.webkit.org/show_bug.cgi?id=21403
          Bug 21403: use new CallFrame class rather than Register* for call frame manipulation

        Add CallFrame as a synonym for ExecState. Arguably, some day we should switch every
        client over to the new name.

        Use CallFrame* consistently rather than Register* or ExecState* in low-level code such
        as Machine.cpp and CTI.cpp. Similarly, use callFrame rather than r as its name and use
        accessor functions to get at things in the frame.

        Eliminate other uses of ExecState* that aren't needed, replacing in some cases with
        JSGlobalData* and in other cases eliminating them entirely.

        * API/JSObjectRef.cpp:
        (JSObjectMakeFunctionWithCallback):
        (JSObjectMakeFunction):
        (JSObjectHasProperty):
        (JSObjectGetProperty):
        (JSObjectSetProperty):
        (JSObjectDeleteProperty):
        * API/OpaqueJSString.cpp:
        * API/OpaqueJSString.h:
        * VM/CTI.cpp:
        (JSC::CTI::getConstant):
        (JSC::CTI::emitGetArg):
        (JSC::CTI::emitGetPutArg):
        (JSC::CTI::getConstantImmediateNumericArg):
        (JSC::CTI::printOpcodeOperandTypes):
        (JSC::CTI::CTI):
        (JSC::CTI::compileOpCall):
        (JSC::CTI::compileBinaryArithOp):
        (JSC::CTI::privateCompileMainPass):
        (JSC::CTI::privateCompile):
        (JSC::CTI::privateCompileGetByIdProto):
        (JSC::CTI::privateCompileGetByIdChain):
        (JSC::CTI::compileRegExp):
        * VM/CTI.h:
        * VM/CodeBlock.h:
        * VM/CodeGenerator.cpp:
        (JSC::CodeGenerator::emitEqualityOp):
        (JSC::CodeGenerator::emitLoad):
        (JSC::CodeGenerator::emitUnexpectedLoad):
        (JSC::CodeGenerator::emitConstruct):
        * VM/CodeGenerator.h:
        * VM/Machine.cpp:
        (JSC::jsLess):
        (JSC::jsLessEq):
        (JSC::jsAddSlowCase):
        (JSC::jsAdd):
        (JSC::jsTypeStringForValue):
        (JSC::Machine::resolve):
        (JSC::Machine::resolveSkip):
        (JSC::Machine::resolveGlobal):
        (JSC::inlineResolveBase):
        (JSC::Machine::resolveBase):
        (JSC::Machine::resolveBaseAndProperty):
        (JSC::Machine::resolveBaseAndFunc):
        (JSC::Machine::slideRegisterWindowForCall):
        (JSC::isNotObject):
        (JSC::Machine::callEval):
        (JSC::Machine::dumpCallFrame):
        (JSC::Machine::dumpRegisters):
        (JSC::Machine::unwindCallFrame):
        (JSC::Machine::throwException):
        (JSC::DynamicGlobalObjectScope::DynamicGlobalObjectScope):
        (JSC::DynamicGlobalObjectScope::~DynamicGlobalObjectScope):
        (JSC::Machine::execute):
        (JSC::Machine::debug):
        (JSC::Machine::createExceptionScope):
        (JSC::cachePrototypeChain):
        (JSC::Machine::tryCachePutByID):
        (JSC::Machine::tryCacheGetByID):
        (JSC::Machine::privateExecute):
        (JSC::Machine::retrieveArguments):
        (JSC::Machine::retrieveCaller):
        (JSC::Machine::retrieveLastCaller):
        (JSC::Machine::findFunctionCallFrame):
        (JSC::Machine::getArgumentsData):
        (JSC::Machine::tryCTICachePutByID):
        (JSC::Machine::getCTIArrayLengthTrampoline):
        (JSC::Machine::getCTIStringLengthTrampoline):
        (JSC::Machine::tryCTICacheGetByID):
        (JSC::Machine::cti_op_convert_this):
        (JSC::Machine::cti_op_end):
        (JSC::Machine::cti_op_add):
        (JSC::Machine::cti_op_pre_inc):
        (JSC::Machine::cti_timeout_check):
        (JSC::Machine::cti_op_loop_if_less):
        (JSC::Machine::cti_op_loop_if_lesseq):
        (JSC::Machine::cti_op_new_object):
        (JSC::Machine::cti_op_put_by_id):
        (JSC::Machine::cti_op_put_by_id_second):
        (JSC::Machine::cti_op_put_by_id_generic):
        (JSC::Machine::cti_op_put_by_id_fail):
        (JSC::Machine::cti_op_get_by_id):
        (JSC::Machine::cti_op_get_by_id_second):
        (JSC::Machine::cti_op_get_by_id_generic):
        (JSC::Machine::cti_op_get_by_id_fail):
        (JSC::Machine::cti_op_instanceof):
        (JSC::Machine::cti_op_del_by_id):
        (JSC::Machine::cti_op_mul):
        (JSC::Machine::cti_op_new_func):
        (JSC::Machine::cti_op_call_JSFunction):
        (JSC::Machine::cti_vm_compile):
        (JSC::Machine::cti_op_push_activation):
        (JSC::Machine::cti_op_call_NotJSFunction):
        (JSC::Machine::cti_op_create_arguments):
        (JSC::Machine::cti_op_tear_off_activation):
        (JSC::Machine::cti_op_tear_off_arguments):
        (JSC::Machine::cti_op_ret_profiler):
        (JSC::Machine::cti_op_ret_scopeChain):
        (JSC::Machine::cti_op_new_array):
        (JSC::Machine::cti_op_resolve):
        (JSC::Machine::cti_op_construct_JSConstruct):
        (JSC::Machine::cti_op_construct_NotJSConstruct):
        (JSC::Machine::cti_op_get_by_val):
        (JSC::Machine::cti_op_resolve_func):
        (JSC::Machine::cti_op_sub):
        (JSC::Machine::cti_op_put_by_val):
        (JSC::Machine::cti_op_put_by_val_array):
        (JSC::Machine::cti_op_lesseq):
        (JSC::Machine::cti_op_loop_if_true):
        (JSC::Machine::cti_op_negate):
        (JSC::Machine::cti_op_resolve_base):
        (JSC::Machine::cti_op_resolve_skip):
        (JSC::Machine::cti_op_resolve_global):
        (JSC::Machine::cti_op_div):
        (JSC::Machine::cti_op_pre_dec):
        (JSC::Machine::cti_op_jless):
        (JSC::Machine::cti_op_not):
        (JSC::Machine::cti_op_jtrue):
        (JSC::Machine::cti_op_post_inc):
        (JSC::Machine::cti_op_eq):
        (JSC::Machine::cti_op_lshift):
        (JSC::Machine::cti_op_bitand):
        (JSC::Machine::cti_op_rshift):
        (JSC::Machine::cti_op_bitnot):
        (JSC::Machine::cti_op_resolve_with_base):
        (JSC::Machine::cti_op_new_func_exp):
        (JSC::Machine::cti_op_mod):
        (JSC::Machine::cti_op_less):
        (JSC::Machine::cti_op_neq):
        (JSC::Machine::cti_op_post_dec):
        (JSC::Machine::cti_op_urshift):
        (JSC::Machine::cti_op_bitxor):
        (JSC::Machine::cti_op_new_regexp):
        (JSC::Machine::cti_op_bitor):
        (JSC::Machine::cti_op_call_eval):
        (JSC::Machine::cti_op_throw):
        (JSC::Machine::cti_op_get_pnames):
        (JSC::Machine::cti_op_next_pname):
        (JSC::Machine::cti_op_push_scope):
        (JSC::Machine::cti_op_pop_scope):
        (JSC::Machine::cti_op_typeof):
        (JSC::Machine::cti_op_to_jsnumber):
        (JSC::Machine::cti_op_in):
        (JSC::Machine::cti_op_push_new_scope):
        (JSC::Machine::cti_op_jmp_scopes):
        (JSC::Machine::cti_op_put_by_index):
        (JSC::Machine::cti_op_switch_imm):
        (JSC::Machine::cti_op_switch_char):
        (JSC::Machine::cti_op_switch_string):
        (JSC::Machine::cti_op_del_by_val):
        (JSC::Machine::cti_op_put_getter):
        (JSC::Machine::cti_op_put_setter):
        (JSC::Machine::cti_op_new_error):
        (JSC::Machine::cti_op_debug):
        (JSC::Machine::cti_vm_throw):
        * VM/Machine.h:
        * VM/Register.h:
        * VM/RegisterFile.h:
        * kjs/Arguments.h:
        * kjs/DebuggerCallFrame.cpp:
        (JSC::DebuggerCallFrame::functionName):
        (JSC::DebuggerCallFrame::type):
        (JSC::DebuggerCallFrame::thisObject):
        (JSC::DebuggerCallFrame::evaluate):
        * kjs/DebuggerCallFrame.h:
        * kjs/ExecState.cpp:
        (JSC::CallFrame::thisValue):
        * kjs/ExecState.h:
        * kjs/FunctionConstructor.cpp:
        (JSC::constructFunction):
        * kjs/JSActivation.cpp:
        (JSC::JSActivation::JSActivation):
        (JSC::JSActivation::argumentsGetter):
        * kjs/JSActivation.h:
        * kjs/JSGlobalObject.cpp:
        (JSC::JSGlobalObject::init):
        * kjs/JSGlobalObjectFunctions.cpp:
        (JSC::globalFuncEval):
        * kjs/JSVariableObject.h:
        * kjs/Parser.cpp:
        (JSC::Parser::parse):
        * kjs/RegExpConstructor.cpp:
        (JSC::constructRegExp):
        * kjs/RegExpPrototype.cpp:
        (JSC::regExpProtoFuncCompile):
        * kjs/Shell.cpp:
        (prettyPrintScript):
        * kjs/StringPrototype.cpp:
        (JSC::stringProtoFuncMatch):
        (JSC::stringProtoFuncSearch):
        * kjs/identifier.cpp:
        (JSC::Identifier::checkSameIdentifierTable):
        * kjs/interpreter.cpp:
        (JSC::Interpreter::checkSyntax):
        (JSC::Interpreter::evaluate):
        * kjs/nodes.cpp:
        (JSC::ThrowableExpressionData::emitThrowError):
        (JSC::RegExpNode::emitCode):
        (JSC::ArrayNode::emitCode):
        (JSC::InstanceOfNode::emitCode):
        * kjs/nodes.h:
        * kjs/regexp.cpp:
        (JSC::RegExp::RegExp):
        (JSC::RegExp::create):
        * kjs/regexp.h:
        * profiler/HeavyProfile.h:
        * profiler/Profile.h:
        * wrec/WREC.cpp:
        * wrec/WREC.h:

2008-10-08  Prasanth Ullattil  <pullatti@trolltech.com>

        Reviewed by Oliver Hunt.

        Avoid endless loops when compiling without the computed goto
        optimization.

        NEXT_OPCODE expands to "continue", which will not work inside
        loops.

        * VM/Machine.cpp:
        (JSC::Machine::privateExecute):

2008-10-08  Maciej Stachowiak  <mjs@apple.com>

        Reviewed by Oliver Hunt.

        Re-landing the following fix with the crashing bug in it fixed (r37405):
        
        - optimize away multiplication by constant 1.0
        
        2.3% speedup on v8 RayTrace benchmark

        Apparently it's not uncommon for JavaScript code to multiply by
        constant 1.0 in the mistaken belief that this converts integer to
        floating point and that there is any operational difference.

        * VM/CTI.cpp:
        (JSC::CTI::privateCompileMainPass): Optimize to_jsnumber for
        case where parameter is already number.
        (JSC::CTI::privateCompileSlowCases): ditto
        * VM/Machine.cpp:
        (JSC::Machine::privateExecute): ditto
        * kjs/grammar.y:
        (makeMultNode): Transform as follows:
        +FOO * BAR ==> FOO * BAR
        FOO * +BAR ==> FOO * BAR
        FOO * 1 ==> +FOO
        1 * FOO ==> +FOO
        (makeDivNode): Transform as follows:
        +FOO / BAR ==> FOO / BAR
        FOO / +BAR ==> FOO / BAR
        (makeSubNode): Transform as follows:
        +FOO - BAR ==> FOO - BAR
        FOO - +BAR ==> FOO - BAR
        * kjs/nodes.h:
        (JSC::ExpressionNode::stripUnaryPlus): Helper for above
        grammar.y changes
        (JSC::UnaryPlusNode::stripUnaryPlus): ditto

2008-10-08  Maciej Stachowiak  <mjs@apple.com>

        Reviewed by Oliver Hunt.
        
        - correctly handle appending -0 to a string, it should stringify as just 0

        * kjs/ustring.cpp:
        (JSC::concatenate):

2008-10-08  Prasanth Ullattil  <pullatti@trolltech.com>

        Reviewed by Simon.

        Fix WebKit compilation with VC2008SP1

        Apply the TR1 workaround for JavaScriptCore, too.

        * JavaScriptCore.pro:

2008-10-08  Prasanth Ullattil  <pullatti@trolltech.com>

        Reviewed by Simon.

        Fix compilation errors on VS2008 64Bit

        * kjs/collector.cpp:
        (JSC::currentThreadStackBase):

2008-10-08  André Pönitz  <apoenitz@trolltech.com>

        Reviewed by Simon.

        Fix compilation with Qt namespaces.

        * wtf/Threading.h:

2008-10-07  Sam Weinig  <sam@webkit.org>

        Roll out r37405.

2008-10-07  Oliver Hunt  <oliver@apple.com>

        Reviewed by Cameron Zwarich.

        Switch CTI runtime calls to the fastcall calling convention

        Basically this means that we get to store the argument for CTI
        calls in the ECX register, which saves a register->memory write
        and subsequent memory->register read.
        
        This is a 1.7% progression in SunSpider and 2.4% on commandline
        v8 tests on Windows

        * VM/CTI.cpp:
        (JSC::):
        (JSC::CTI::privateCompilePutByIdTransition):
        (JSC::CTI::privateCompilePatchGetArrayLength):
        * VM/CTI.h:
        * VM/Machine.h:
        * masm/X86Assembler.h:
        (JSC::X86Assembler::emitRestoreArgumentReference):
        (JSC::X86Assembler::emitRestoreArgumentReferenceForTrampoline):
          We need this to correctly reload ecx from inside certain property access
          trampolines.
        * wtf/Platform.h:

2008-10-07  Maciej Stachowiak  <mjs@apple.com>

        Reviewed by Mark Rowe.
        
        - optimize away multiplication by constant 1.0
        
        2.3% speedup on v8 RayTrace benchmark

        Apparently it's not uncommon for JavaScript code to multiply by
        constant 1.0 in the mistaken belief that this converts integer to
        floating point and that there is any operational difference.
        
        * VM/CTI.cpp:
        (JSC::CTI::privateCompileMainPass): Optimize to_jsnumber for
        case where parameter is already number.
        (JSC::CTI::privateCompileSlowCases): ditto
        * VM/Machine.cpp:
        (JSC::Machine::privateExecute): ditto
        * kjs/grammar.y:
        (makeMultNode): Transform as follows:
        +FOO * BAR ==> FOO * BAR
        FOO * +BAR ==> FOO * BAR
        FOO * 1 ==> +FOO
        1 * FOO ==> +FOO
        (makeDivNode): Transform as follows:
        +FOO / BAR ==> FOO / BAR
        FOO / +BAR ==> FOO / BAR
        (makeSubNode): Transform as follows:
        +FOO - BAR ==> FOO - BAR
        FOO - +BAR ==> FOO - BAR
        * kjs/nodes.h:
        (JSC::ExpressionNode::stripUnaryPlus): Helper for above
        grammar.y changes
        (JSC::UnaryPlusNode::stripUnaryPlus): ditto

2008-10-07  Maciej Stachowiak  <mjs@apple.com>

        Reviewed by Oliver Hunt.
        
        - make constant folding code more consistent
        
        Added a makeSubNode to match add, mult and div; use the makeFooNode functions always,
        instead of allocating nodes directly in other places in the grammar.

        * kjs/grammar.y:

2008-10-07  Sam Weinig  <sam@webkit.org>

        Reviewed by Cameron Zwarich.

        Move hasGetterSetterProperties flag from PropertyMap to StructureID.

        * kjs/JSObject.cpp:
        (JSC::JSObject::put):
        (JSC::JSObject::defineGetter):
        (JSC::JSObject::defineSetter):
        * kjs/JSObject.h:
        (JSC::JSObject::hasGetterSetterProperties):
        (JSC::JSObject::getOwnPropertySlotForWrite):
        (JSC::JSObject::getOwnPropertySlot):
        * kjs/PropertyMap.h:
        * kjs/StructureID.cpp:
        (JSC::StructureID::StructureID):
        (JSC::StructureID::addPropertyTransition):
        (JSC::StructureID::toDictionaryTransition):
        (JSC::StructureID::changePrototypeTransition):
        (JSC::StructureID::getterSetterTransition):
        * kjs/StructureID.h:
        (JSC::StructureID::hasGetterSetterProperties):
        (JSC::StructureID::setHasGetterSetterProperties):

2008-10-07  Sam Weinig  <sam@webkit.org>

        Reviewed by Cameron Zwarich.

        Roll r37370 back in with bug fixes.

        - PropertyMap::storageSize() should reflect the number of keys + deletedOffsets
          and has nothing to do with the internal deletedSentinel count anymore.

2008-10-07  Gavin Barraclough  <barraclough@apple.com>

        Reviewed by Oliver Hunt.

        Move callframe initialization into JIT code, again.
        
        As a part of the restructuring the second result from functions is now
        returned in edx, allowing the new value of 'r' to be returned via a
        register, and stored to the stack from JIT code, too.

        4.5% progression on v8-tests. (3% in their harness)

        * VM/CTI.cpp:
        (JSC::):
        (JSC::CTI::emitCall):
        (JSC::CTI::compileOpCall):
        (JSC::CTI::privateCompileMainPass):
        (JSC::CTI::privateCompileSlowCases):
        (JSC::CTI::privateCompile):
        * VM/CTI.h:
        (JSC::CallRecord::CallRecord):
        * VM/Machine.cpp:
        (JSC::Machine::cti_op_call_JSFunction):
        (JSC::Machine::cti_op_construct_JSConstruct):
        (JSC::Machine::cti_op_resolve_func):
        (JSC::Machine::cti_op_post_inc):
        (JSC::Machine::cti_op_resolve_with_base):
        (JSC::Machine::cti_op_post_dec):
        * VM/Machine.h:
        * kjs/JSFunction.h:
        * kjs/ScopeChain.h:

2008-10-07  Mark Rowe  <mrowe@apple.com>

        Fix typo in method name.

        * wrec/WREC.cpp:
        * wrec/WREC.h:

2008-10-07  Cameron Zwarich  <zwarich@apple.com>

        Rubber-stamped by Mark Rowe.

        Roll out r37370.

2008-10-06  Sam Weinig  <sam@webkit.org>

        Reviewed by Cameron Zwarich.

        Fix for https://bugs.webkit.org/show_bug.cgi?id=21415
        Improve the division between PropertyStorageArray and PropertyMap

        - Rework ProperyMap to store offsets in the value so that they don't
          change when rehashing.  This allows us not to have to keep the 
          PropertyStorageArray in sync and thus not have to pass it in.
        - Rename PropertyMap::getOffset -> PropertyMap::get since put/remove
          now also return offsets.
        - A Vector of deleted offsets is now needed since the storage is out of
          band.

        1% win on SunSpider.  Wash on V8 suite.

        * JavaScriptCore.exp:
        * VM/CTI.cpp:
        (JSC::transitionWillNeedStorageRealloc):
        * VM/Machine.cpp:
        (JSC::Machine::privateExecute):
        Transition logic can be greatly simplified by the fact that
        the storage capacity is always known, and is correct for the
        inline case.
        * kjs/JSObject.cpp:
        (JSC::JSObject::put): Rename getOffset -> get.
        (JSC::JSObject::deleteProperty): Ditto.
        (JSC::JSObject::getPropertyAttributes): Ditto.
        (JSC::JSObject::removeDirect): Use returned offset to
        clear the value in the PropertyNameArray.
        (JSC::JSObject::allocatePropertyStorage): Add assert.
        * kjs/JSObject.h:
        (JSC::JSObject::getDirect): Rename getOffset -> get
        (JSC::JSObject::getDirectLocation): Rename getOffset -> get
        (JSC::JSObject::putDirect): Use propertyStorageCapacity to determine whether
        or not to resize.  Also, since put now returns an offset (and thus 
        addPropertyTransition does also) setting of the PropertyStorageArray is
        now done here.
        (JSC::JSObject::transitionTo):
        * kjs/PropertyMap.cpp:
        (JSC::PropertyMap::checkConsistency): PropertyStorageArray is no longer 
        passed in.
        (JSC::PropertyMap::operator=): Copy the delete offsets vector.
        (JSC::PropertyMap::put): Instead of setting the PropertyNameArray
        explicitly, return the offset where the value should go.
        (JSC::PropertyMap::remove): Instead of removing from the PropertyNameArray
        explicitly, return the offset where the value should be removed.
        (JSC::PropertyMap::get): Switch to using the stored offset, instead
        of the implicit one.
        (JSC::PropertyMap::insert):
        (JSC::PropertyMap::expand): This is never called when m_table is null,
        so remove that branch and add it as an assertion.
        (JSC::PropertyMap::createTable): Consistency checks no longer take
        a PropertyNameArray.
        (JSC::PropertyMap::rehash): No need to rehash the PropertyNameArray
        now that it is completely out of band.
        * kjs/PropertyMap.h:
        (JSC::PropertyMapEntry::PropertyMapEntry): Store offset into PropertyNameArray.
        (JSC::PropertyMap::get): Switch to using the stored offset, instead
        of the implicit one.
        * kjs/StructureID.cpp:
        (JSC::StructureID::StructureID): Initialize the propertyStorageCapacity to 
        JSObject::inlineStorageCapacity.
        (JSC::StructureID::growPropertyStorageCapacity): Grow the storage capacity as
        described below.
        (JSC::StructureID::addPropertyTransition): Copy the storage capacity.
        (JSC::StructureID::toDictionaryTransition): Ditto.
        (JSC::StructureID::changePrototypeTransition): Ditto.
        (JSC::StructureID::getterSetterTransition): Ditto.
        * kjs/StructureID.h:
        (JSC::StructureID::propertyStorageCapacity): Add propertyStorageCapacity
        which is the current capacity for the JSObjects PropertyStorageArray.
        It starts at the JSObject::inlineStorageCapacity (currently 2), then
        when it first needs to be resized moves to the JSObject::nonInlineBaseStorageCapacity
        (currently 16), and after that doubles each time.

2008-10-06  Cameron Zwarich  <zwarich@apple.com>

        Reviewed by Oliver Hunt.

        Bug 21396: Remove the OptionalCalleeActivation call frame slot
        <https://bugs.webkit.org/show_bug.cgi?id=21396>

        Remove the OptionalCalleeActivation call frame slot. We have to be
        careful to store the activation object in a register, because objects
        in the scope chain do not get marked.

        This is a 0.3% speedup on both SunSpider and the V8 benchmark.

        * VM/CTI.cpp:
        (JSC::CTI::privateCompileMainPass):
        * VM/CodeBlock.cpp:
        (JSC::CodeBlock::dump):
        * VM/CodeGenerator.cpp:
        (JSC::CodeGenerator::CodeGenerator):
        (JSC::CodeGenerator::emitReturn):
        * VM/CodeGenerator.h:
        * VM/Machine.cpp:
        (JSC::Machine::dumpRegisters):
        (JSC::Machine::unwindCallFrame):
        (JSC::Machine::privateExecute):
        (JSC::Machine::cti_op_call_JSFunction):
        (JSC::Machine::cti_op_push_activation):
        (JSC::Machine::cti_op_tear_off_activation):
        (JSC::Machine::cti_op_construct_JSConstruct):
        * VM/Machine.h:
        (JSC::Machine::initializeCallFrame):
        * VM/RegisterFile.h:
        (JSC::RegisterFile::):

2008-10-06  Tony Chang  <tony@chromium.org>

        Reviewed by Alexey Proskuryakov.

        Chromium doesn't use pthreads on windows, so make its use conditional.
        
        Also convert a WORD to a DWORD to avoid a compiler warning.  This
        matches the other methods around it.

        * wtf/ThreadingWin.cpp:
        (WTF::wtfThreadEntryPoint):
        (WTF::ThreadCondition::broadcast):

2008-10-06  Mark Mentovai  <mark@moxienet.com>

        Reviewed by Tim Hatcher.

        Allow ENABLE_DASHBOARD_SUPPORT and ENABLE_MAC_JAVA_BRIDGE to be
        disabled on the Mac.

        https://bugs.webkit.org/show_bug.cgi?id=21333

        * wtf/Platform.h:

2008-10-06  Steve Falkenburg  <sfalken@apple.com>

        https://bugs.webkit.org/show_bug.cgi?id=21416
        Pass 0 for size to VirtualAlloc, as documented by MSDN.
        Identified by Application Verifier.
        
        Reviewed by Darin Adler.

        * kjs/collector.cpp:
        (KJS::freeBlock):

2008-10-06  Kevin McCullough  <kmccullough@apple.com>

        Reviewed by Tim Hatcheri and Oliver Hunt.

        https://bugs.webkit.org/show_bug.cgi?id=21412
        Bug 21412: Refactor user initiated profile count to be more stable
        - Export UString::from for use with creating the profile title.

        * JavaScriptCore.exp:

2008-10-06  Maciej Stachowiak  <mjs@apple.com>

        Not reviewed. Build fix.
        
        - revert toBoolean changes (r37333 and r37335); need to make WebCore work with these

        * API/JSValueRef.cpp:
        (JSValueToBoolean):
        * ChangeLog:
        * JavaScriptCore.exp:
        * VM/CodeBlock.cpp:
        (JSC::CodeBlock::dump):
        * VM/Machine.cpp:
        (JSC::Machine::privateExecute):
        (JSC::Machine::cti_op_loop_if_true):
        (JSC::Machine::cti_op_not):
        (JSC::Machine::cti_op_jtrue):
        * kjs/ArrayPrototype.cpp:
        (JSC::arrayProtoFuncFilter):
        (JSC::arrayProtoFuncEvery):
        (JSC::arrayProtoFuncSome):
        * kjs/BooleanConstructor.cpp:
        (JSC::constructBoolean):
        (JSC::callBooleanConstructor):
        * kjs/GetterSetter.h:
        * kjs/JSCell.h:
        (JSC::JSValue::toBoolean):
        * kjs/JSNumberCell.cpp:
        (JSC::JSNumberCell::toBoolean):
        * kjs/JSNumberCell.h:
        * kjs/JSObject.cpp:
        (JSC::JSObject::toBoolean):
        * kjs/JSObject.h:
        * kjs/JSString.cpp:
        (JSC::JSString::toBoolean):
        * kjs/JSString.h:
        * kjs/JSValue.h:
        * kjs/RegExpConstructor.cpp:
        (JSC::setRegExpConstructorMultiline):
        * kjs/RegExpObject.cpp:
        (JSC::RegExpObject::match):
        * kjs/RegExpPrototype.cpp:
        (JSC::regExpProtoFuncToString):

2008-10-06  Maciej Stachowiak  <mjs@apple.com>

        Reviewed by Sam Weinig.
        
        - optimize op_jtrue, op_loop_if_true and op_not in various ways
        https://bugs.webkit.org/show_bug.cgi?id=21404
        
        1) Make JSValue::toBoolean nonvirtual and completely inline by
        making use of the StructureID type field.
        
        2) Make JSValue::toBoolean not take an ExecState; doesn't need it.
        
        3) Make op_not, op_loop_if_true and op_jtrue not read the
        ExecState (toBoolean doesn't need it any more) and not check
        exceptions (toBoolean can't throw).

        * API/JSValueRef.cpp:
        (JSValueToBoolean):
        * JavaScriptCore.exp:
        * VM/CodeBlock.cpp:
        (JSC::CodeBlock::dump):
        * VM/Machine.cpp:
        (JSC::Machine::privateExecute):
        (JSC::Machine::cti_op_loop_if_true):
        (JSC::Machine::cti_op_not):
        (JSC::Machine::cti_op_jtrue):
        * kjs/ArrayPrototype.cpp:
        (JSC::arrayProtoFuncFilter):
        (JSC::arrayProtoFuncEvery):
        (JSC::arrayProtoFuncSome):
        * kjs/BooleanConstructor.cpp:
        (JSC::constructBoolean):
        (JSC::callBooleanConstructor):
        * kjs/GetterSetter.h:
        * kjs/JSCell.h:
        (JSC::JSValue::toBoolean):
        * kjs/JSNumberCell.cpp:
        * kjs/JSNumberCell.h:
        (JSC::JSNumberCell::toBoolean):
        * kjs/JSObject.cpp:
        * kjs/JSObject.h:
        (JSC::JSObject::toBoolean):
        (JSC::JSCell::toBoolean):
        * kjs/JSString.cpp:
        * kjs/JSString.h:
        (JSC::JSString::toBoolean):
        * kjs/JSValue.h:
        * kjs/RegExpConstructor.cpp:
        (JSC::setRegExpConstructorMultiline):
        * kjs/RegExpObject.cpp:
        (JSC::RegExpObject::match):
        * kjs/RegExpPrototype.cpp:
        (JSC::regExpProtoFuncToString):

2008-10-06  Ariya Hidayat  <ariya.hidayat@trolltech.com>

        Reviewed by Simon.

        Build fix for MinGW.

        * JavaScriptCore.pri:
        * kjs/DateMath.cpp:
        (JSC::highResUpTime):

2008-10-05  Cameron Zwarich  <zwarich@apple.com>

        Reviewed by Oliver Hunt.

        Remove ScopeNode::containsClosures() now that it is unused.

        * kjs/nodes.h:
        (JSC::ScopeNode::containsClosures):

2008-10-05  Maciej Stachowiak  <mjs@apple.com>

        Reviewed by Cameron Zwarich.
        
        - fix releas-only test failures caused by the fix to bug 21375

        * VM/Machine.cpp:
        (JSC::Machine::unwindCallFrame): Update ExecState while unwinding call frames;
        it now matters more to have a still-valid ExecState, since dynamicGlobalObject
        will make use of the ExecState's scope chain.
        * VM/Machine.h:

2008-10-05  Cameron Zwarich  <zwarich@apple.com>

        Reviewed by Oliver Hunt.

        Bug 21364: Remove the branch in op_ret for OptionalCalleeActivation and OptionalCalleeArguments
        <https://bugs.webkit.org/show_bug.cgi?id=21364>

        Use information from the parser to detect whether an activation is
        needed or 'arguments' is used, and emit explicit instructions to tear
        them off before op_ret. This allows a branch to be removed from op_ret
        and simplifies some other code. This does cause a small change in the
        behaviour of 'f.arguments'; it is no longer live when 'arguments' is not
        mentioned in the lexical scope of the function.

        It should now be easy to remove the OptionaCalleeActivation slot in the
        call frame, but this will be done in a later patch.

        * VM/CTI.cpp:
        (JSC::CTI::privateCompileMainPass):
        * VM/CodeBlock.cpp:
        (JSC::CodeBlock::dump):
        * VM/CodeGenerator.cpp:
        (JSC::CodeGenerator::emitReturn):
        * VM/CodeGenerator.h:
        * VM/Machine.cpp:
        (JSC::Machine::unwindCallFrame):
        (JSC::Machine::privateExecute):
        (JSC::Machine::retrieveArguments):
        (JSC::Machine::cti_op_create_arguments):
        (JSC::Machine::cti_op_tear_off_activation):
        (JSC::Machine::cti_op_tear_off_arguments):
        * VM/Machine.h:
        * VM/Opcode.h:
        * kjs/Arguments.cpp:
        (JSC::Arguments::mark):
        * kjs/Arguments.h:
        (JSC::Arguments::isTornOff):
        (JSC::Arguments::Arguments):
        (JSC::Arguments::copyRegisters):
        (JSC::JSActivation::copyRegisters):
        * kjs/JSActivation.cpp:
        (JSC::JSActivation::argumentsGetter):
        * kjs/JSActivation.h:

2008-10-05  Maciej Stachowiak  <mjs@apple.com>

        Reviewed by Oliver Hunt.
        
        - fixed "REGRESSION (r37297): fast/js/deep-recursion-test takes too long and times out"
        https://bugs.webkit.org/show_bug.cgi?id=21375
        
        The problem is that dynamicGlobalObject had become O(N) in number
        of call frames, but unwinding the stack for an exception called it
        for every call frame, resulting in O(N^2) behavior for an
        exception thrown from inside deep recursion.

        Instead of doing it that way, stash the dynamic global object in JSGlobalData.
        
        * JavaScriptCore.exp:
        * VM/Machine.cpp:
        (JSC::DynamicGlobalObjectScope::DynamicGlobalObjectScope): Helper class to temporarily
        store and later restore a dynamicGlobalObject in JSGlobalData.
        (JSC::DynamicGlobalObjectScope::~DynamicGlobalObjectScope):
        (JSC::Machine::execute): In each version, establish a DynamicGlobalObjectScope.
        For ProgramNode, always establish set new dynamicGlobalObject, for FunctionBody and Eval,
        only if none is currently set.
        * VM/Machine.h:
        * kjs/ExecState.h:
        * kjs/JSGlobalData.cpp:
        (JSC::JSGlobalData::JSGlobalData): Ininitalize new dynamicGlobalObject field to 0.
        * kjs/JSGlobalData.h:
        * kjs/JSGlobalObject.h:
        (JSC::ExecState::dynamicGlobalObject): Moved here from ExecState for benefit of inlining.
        Return lexical global object if this is a globalExec(), otherwise look in JSGlobalData
        for the one stashed there.

2008-10-05  Sam Weinig  <sam@webkit.org>

        Reviewed by Maciej Stachowiak.

        Avoid an extra lookup when transitioning to an existing StructureID
        by caching the offset of property that caused the transition.

        1% win on V8 suite.  Wash on SunSpider.

        * kjs/PropertyMap.cpp:
        (JSC::PropertyMap::put):
        * kjs/PropertyMap.h:
        * kjs/StructureID.cpp:
        (JSC::StructureID::StructureID):
        (JSC::StructureID::addPropertyTransition):
        * kjs/StructureID.h:
        (JSC::StructureID::setCachedTransistionOffset):
        (JSC::StructureID::cachedTransistionOffset):

2008-10-05  Cameron Zwarich  <zwarich@apple.com>

        Reviewed by Maciej Stachowiak.

        Bug 21364: Remove the branch in op_ret for OptionalCalleeActivation and OptionalCalleeArguments
        <https://bugs.webkit.org/show_bug.cgi?id=21364>

        This patch does not yet remove the branch, but it does a bit of refactoring
        so that a CodeGenerator now knows whether the associated CodeBlock will need
        a full scope before doing any code generation. This makes it possible to emit
        explicit tear-off instructions before every op_ret.

        * VM/CodeBlock.h:
        (JSC::CodeBlock::CodeBlock):
        * VM/CodeGenerator.cpp:
        (JSC::CodeGenerator::generate):
        (JSC::CodeGenerator::CodeGenerator):
        (JSC::CodeGenerator::emitPushScope):
        (JSC::CodeGenerator::emitPushNewScope):
        * kjs/nodes.h:
        (JSC::ScopeNode::needsActivation):

2008-10-05  Gavin Barraclough  <barraclough@apple.com>

        Reviewed by Cameron Zwarich.

        Fix for bug #21387 - using SamplingTool with CTI.

        (1) A repatch offset offset changes due to an additional instruction to update SamplingTool state.
        (2) Fix an incusion order problem due to ExecState changes.
        (3) Change to a MACHINE_SAMPLING macro, use of exec should now be accessing global data.

        * VM/CTI.h:
        (JSC::CTI::execute):
        * VM/SamplingTool.h:
        (JSC::SamplingTool::privateExecuteReturned):
        * kjs/Shell.cpp:

2008-10-04  Mark Rowe  <mrowe@apple.com>

        Reviewed by Tim Hatcher.

        Add a 'Check For Weak VTables' build phase to catch weak vtables as early as possible.

        * JavaScriptCore.xcodeproj/project.pbxproj:

2008-10-04  Sam Weinig  <sam@webkit.org>

        Reviewed by Oliver Hunt.

        Fix https://bugs.webkit.org/show_bug.cgi?id=21320
        leaks of PropertyNameArrayData seen on buildbot

        - Fix RefPtr cycle by making PropertyNameArrayData's pointer back
          to the StructureID a weak pointer.

        * kjs/PropertyNameArray.h:
        (JSC::PropertyNameArrayData::setCachedStructureID):
        (JSC::PropertyNameArrayData::cachedStructureID):
        * kjs/StructureID.cpp:
        (JSC::StructureID::getEnumerablePropertyNames):
        (JSC::StructureID::clearEnumerationCache):
        (JSC::StructureID::~StructureID):

2008-10-04  Darin Adler  <darin@apple.com>

        Reviewed by Cameron Zwarich.

        - https://bugs.webkit.org/show_bug.cgi?id=21295
          Bug 21295: Replace ExecState with a call frame Register pointer

        10% faster on Richards; other v8 benchmarks faster too.
        A wash on SunSpider.

        This does the minimum necessary to get the speedup. Next step in
        cleaning this up is to replace ExecState with a CallFrame class,
        and be more judicious about when to pass a call frame and when
        to pass a global data pointer, global object pointer, or perhaps
        something else entirely.

        * VM/CTI.cpp: Remove the debug-only check of the exception in
        ctiVMThrowTrampoline -- already checked in the code the trampoline
        jumps to, so not all that useful. Removed the exec argument from
        ctiTrampoline. Removed emitDebugExceptionCheck -- no longer needed.
        (JSC::CTI::emitCall): Removed code to set ExecState::m_callFrame.
        (JSC::CTI::privateCompileMainPass): Removed code in catch to extract
        the exception from ExecState::m_exception; instead, the code that
        jumps into catch will make sure the exception is already in eax.
        * VM/CTI.h: Removed exec from the ctiTrampoline. Also removed the
        non-helpful "volatile". Temporarily left ARG_exec in as a synonym
        for ARG_r; I'll change that on a future cleanup pass when introducing
        more use of the CallFrame type.
        (JSC::CTI::execute): Removed the ExecState* argument.

        * VM/ExceptionHelpers.cpp:
        (JSC::InterruptedExecutionError::InterruptedExecutionError): Take
        JSGlobalData* instead of ExecState*.
        (JSC::createInterruptedExecutionException): Ditto.
        * VM/ExceptionHelpers.h: Ditto. Also removed an unneeded include.

        * VM/Machine.cpp:
        (JSC::slideRegisterWindowForCall): Removed the exec and
        exceptionValue arguments. Changed to return 0 when there's a stack
        overflow rather than using a separate exception argument to cut
        down on memory accesses in the calling convention.
        (JSC::Machine::unwindCallFrame): Removed the exec argument when
        constructing a DebuggerCallFrame. Also removed code to set
        ExecState::m_callFrame.
        (JSC::Machine::throwException): Removed the exec argument when
        construction a DebuggerCallFrame.
        (JSC::Machine::execute): Updated to use the register instead of
        ExecState and also removed various uses of ExecState.
        (JSC::Machine::debug):
        (JSC::Machine::privateExecute): Put globalData into a local
        variable so it can be used throughout the interpreter. Changed
        the VM_CHECK_EXCEPTION to get the exception in globalData instead
        of through ExecState.
        (JSC::Machine::retrieveLastCaller): Turn exec into a registers
        pointer by calling registers() instead of by getting m_callFrame.
        (JSC::Machine::callFrame): Ditto.
        Tweaked exception macros. Made new versions for when you know
        you have an exception. Get at global exception with ARG_globalData.
        Got rid of the need to pass in the return value type.
        (JSC::Machine::cti_op_add): Update to use new version of exception
        macros.
        (JSC::Machine::cti_op_pre_inc): Ditto.
        (JSC::Machine::cti_timeout_check): Ditto.
        (JSC::Machine::cti_op_instanceof): Ditto.
        (JSC::Machine::cti_op_new_func): Ditto.
        (JSC::Machine::cti_op_call_JSFunction): Optimized by using the
        ARG values directly instead of through local variables -- this gets
        rid of code that just shuffles things around in the stack frame.
        Also get rid of ExecState and update for the new way exceptions are
        handled in slideRegisterWindowForCall.
        (JSC::Machine::cti_vm_compile): Update to make exec out of r since
        they are both the same thing now.
        (JSC::Machine::cti_op_call_NotJSFunction): Ditto.
        (JSC::Machine::cti_op_init_arguments): Ditto.
        (JSC::Machine::cti_op_resolve): Ditto.
        (JSC::Machine::cti_op_construct_JSConstruct): Ditto.
        (JSC::Machine::cti_op_construct_NotJSConstruct): Ditto.
        (JSC::Machine::cti_op_resolve_func): Ditto.
        (JSC::Machine::cti_op_put_by_val): Ditto.
        (JSC::Machine::cti_op_put_by_val_array): Ditto.
        (JSC::Machine::cti_op_resolve_skip): Ditto.
        (JSC::Machine::cti_op_resolve_global): Ditto.
        (JSC::Machine::cti_op_post_inc): Ditto.
        (JSC::Machine::cti_op_resolve_with_base): Ditto.
        (JSC::Machine::cti_op_post_dec): Ditto.
        (JSC::Machine::cti_op_call_eval): Ditto.
        (JSC::Machine::cti_op_throw): Ditto. Also rearranged to return
        the exception value as the return value so it can be used by
        op_catch.
        (JSC::Machine::cti_op_push_scope): Ditto.
        (JSC::Machine::cti_op_in): Ditto.
        (JSC::Machine::cti_op_del_by_val): Ditto.
        (JSC::Machine::cti_vm_throw): Ditto. Also rearranged to return
        the exception value as the return value so it can be used by
        op_catch.

        * kjs/DebuggerCallFrame.cpp:
        (JSC::DebuggerCallFrame::functionName): Pass globalData.
        (JSC::DebuggerCallFrame::evaluate): Eliminated code to make a
        new ExecState.
        * kjs/DebuggerCallFrame.h: Removed ExecState argument from
        constructor.

        * kjs/ExecState.h: Eliminated all data members and made ExecState
        inherit privately from Register instead. Also added a typedef to
        the future name for this class, which is CallFrame. It's just a
        Register* that knows it's a pointer at a call frame. The new class
        can't be constructed or copied. Changed all functions to use
        the this pointer instead of m_callFrame. Changed exception-related
        functions to access an exception in JSGlobalData. Removed functions
        used by CTI to pass the return address to the throw machinery --
        this is now done directly with a global in the global data.

        * kjs/FunctionPrototype.cpp:
        (JSC::functionProtoFuncToString): Pass globalData instead of exec.

        * kjs/InternalFunction.cpp:
        (JSC::InternalFunction::name): Take globalData instead of exec.
        * kjs/InternalFunction.h: Ditto.

        * kjs/JSGlobalData.cpp: Initialize the new exception global to 0.
        * kjs/JSGlobalData.h: Declare two new globals. One for the current
        exception and another for the return address used by CTI to
        implement the throw operation.

        * kjs/JSGlobalObject.cpp:
        (JSC::JSGlobalObject::init): Removed code to set up globalExec,
        which is now the same thing as globalCallFrame.
        (JSC::JSGlobalObject::reset): Get globalExec from our globalExec
        function so we don't have to repeat the logic twice.
        (JSC::JSGlobalObject::mark): Removed code to mark the exception;
        the exception is now stored in JSGlobalData and marked there.
        (JSC::JSGlobalObject::globalExec): Return a pointer to the end
        of the global call frame.
        * kjs/JSGlobalObject.h: Removed the globalExec data member.

        * kjs/JSObject.cpp:
        (JSC::JSObject::putDirectFunction): Pass globalData instead of exec.

        * kjs/collector.cpp:
        (JSC::Heap::collect): Mark the global exception.

        * profiler/ProfileGenerator.cpp:
        (JSC::ProfileGenerator::addParentForConsoleStart): Pass globalData
        instead of exec to createCallIdentifier.

        * profiler/Profiler.cpp:
        (JSC::Profiler::willExecute): Pass globalData instead of exec to
        createCallIdentifier.
        (JSC::Profiler::didExecute): Ditto.
        (JSC::Profiler::createCallIdentifier): Take globalData instead of
        exec.
        (JSC::createCallIdentifierFromFunctionImp): Ditto.
        * profiler/Profiler.h: Change interface to take a JSGlobalData
        instead of an ExecState.

2008-10-04  Cameron Zwarich  <zwarich@apple.com>

        Reviewed by Darin Adler.

        Bug 21369: Add opcode documentation for all undocumented opcodes
        <https://bugs.webkit.org/show_bug.cgi?id=21369>

        This patch adds opcode documentation for all undocumented opcodes, and
        it also renames op_init_arguments to op_create_arguments.

        * VM/CTI.cpp:
        (JSC::CTI::privateCompileMainPass):
        * VM/CodeBlock.cpp:
        (JSC::CodeBlock::dump):
        * VM/CodeGenerator.cpp:
        (JSC::CodeGenerator::CodeGenerator):
        * VM/Machine.cpp:
        (JSC::Machine::privateExecute):
        (JSC::Machine::cti_op_create_arguments):
        * VM/Machine.h:
        * VM/Opcode.h:

2008-10-03  Maciej Stachowiak  <mjs@apple.com>

        Reviewed by Cameron Zwarich.
        
        - "this" object in methods called on primitives should be wrapper object
        https://bugs.webkit.org/show_bug.cgi?id=21362

        I changed things so that functions which use "this" do a fast
        version of toThisObject conversion if needed. Currently we miss
        the conversion entirely, at least for primitive types. Using
        TypeInfo and the primitive check, I made the fast case bail out
        pretty fast.
        
        This is inexplicably an 1.007x SunSpider speedup (and a wash on V8 benchmarks).
     
        Also renamed some opcodes for clarity:
        
        init ==> enter
        init_activation ==> enter_with_activation
        
        * VM/CTI.cpp:
        (JSC::CTI::privateCompileMainPass):
        (JSC::CTI::privateCompileSlowCases):
        * VM/CodeBlock.cpp:
        (JSC::CodeBlock::dump):
        * VM/CodeGenerator.cpp:
        (JSC::CodeGenerator::generate):
        (JSC::CodeGenerator::CodeGenerator):
        * VM/Machine.cpp:
        (JSC::Machine::privateExecute):
        (JSC::Machine::cti_op_convert_this):
        * VM/Machine.h:
        * VM/Opcode.h:
        * kjs/JSActivation.cpp:
        (JSC::JSActivation::JSActivation):
        * kjs/JSActivation.h:
        (JSC::JSActivation::createStructureID):
        * kjs/JSCell.h:
        (JSC::JSValue::needsThisConversion):
        * kjs/JSGlobalData.cpp:
        (JSC::JSGlobalData::JSGlobalData):
        * kjs/JSGlobalData.h:
        * kjs/JSNumberCell.h:
        (JSC::JSNumberCell::createStructureID):
        * kjs/JSStaticScopeObject.h:
        (JSC::JSStaticScopeObject::JSStaticScopeObject):
        (JSC::JSStaticScopeObject::createStructureID):
        * kjs/JSString.h:
        (JSC::JSString::createStructureID):
        * kjs/JSValue.h:
        * kjs/TypeInfo.h:
        (JSC::TypeInfo::needsThisConversion):
        * kjs/nodes.h:
        (JSC::ScopeNode::usesThis):

2008-10-03  Cameron Zwarich  <zwarich@apple.com>

        Reviewed by Maciej Stachowiak.

        Bug 21356: The size of the RegisterFile differs depending on 32-bit / 64-bit and Debug / Release
        <https://bugs.webkit.org/show_bug.cgi?id=21356>

        The RegisterFile decreases in size (measured in terms of numbers of
        Registers) as the size of a Register increases. This causes

            js1_5/Regress/regress-159334.js

        to fail in 64-bit debug builds. This fix makes the RegisterFile on all
        platforms the same size that it is in 32-bit Release builds.

        * VM/RegisterFile.h:
        (JSC::RegisterFile::RegisterFile):

2008-10-03  Maciej Stachowiak  <mjs@apple.com>

        Reviewed by Cameron Zwarich.
        
        - Some code cleanup to how we handle code features.
        
        1) Rename FeatureInfo typedef to CodeFeatures.
        2) Rename NodeFeatureInfo template to NodeInfo.
        3) Keep CodeFeature bitmask in ScopeNode instead of trying to break it out into individual bools.
        4) Rename misleadingly named "needsClosure" method to "containsClosures", which better describes the meaning
        of ClosureFeature.
        5) Make setUsersArguments() not take an argument since it only goes one way.

        * JavaScriptCore.exp:
        * VM/CodeBlock.h:
        (JSC::CodeBlock::CodeBlock):
        * kjs/NodeInfo.h:
        * kjs/Parser.cpp:
        (JSC::Parser::didFinishParsing):
        * kjs/Parser.h:
        (JSC::Parser::parse):
        * kjs/grammar.y:
        * kjs/nodes.cpp:
        (JSC::ScopeNode::ScopeNode):
        (JSC::ProgramNode::ProgramNode):
        (JSC::ProgramNode::create):
        (JSC::EvalNode::EvalNode):
        (JSC::EvalNode::create):
        (JSC::FunctionBodyNode::FunctionBodyNode):
        (JSC::FunctionBodyNode::create):
        * kjs/nodes.h:
        (JSC::ScopeNode::usesEval):
        (JSC::ScopeNode::containsClosures):
        (JSC::ScopeNode::usesArguments):
        (JSC::ScopeNode::setUsesArguments):

2008-10-03  Cameron Zwarich  <zwarich@apple.com>

        Reviewed by Maciej Stachowiak.

        Bug 21343: REGRESSSION (r37160): ecma_3/ExecutionContexts/10.1.3-1.js and js1_4/Functions/function-001.js fail on 64-bit
        <https://bugs.webkit.org/show_bug.cgi?id=21343>

        A fix was landed for this issue in r37253, and the ChangeLog assumes
        that it is a compiler bug, but it turns out that it is a subtle issue
        with mixing signed and unsigned 32-bit values in a 64-bit environment.
        In order to properly fix this bug, we should convert our signed offsets
        into the register file to use ptrdiff_t.

        This may not be the only instance of this issue, but I will land this
        fix first and look for more later.

        * VM/Machine.cpp:
        (JSC::Machine::getArgumentsData):
        * VM/Machine.h:
        * kjs/Arguments.cpp:
        (JSC::Arguments::getOwnPropertySlot):
        * kjs/Arguments.h:
        (JSC::Arguments::init):

2008-10-03  Darin Adler  <darin@apple.com>

        * VM/CTI.cpp: Another Windows build fix. Change the args of ctiTrampoline.

        * kjs/JSNumberCell.h: A build fix for newer versions of gcc. Added
        declarations of JSGlobalData overloads of jsNumberCell.

2008-10-03  Darin Adler  <darin@apple.com>

        - try to fix Windows build

        * kjs/ScopeChain.h: Add forward declaration of JSGlobalData.

2008-10-03  Darin Adler  <darin@apple.com>

        Reviewed by Geoff Garen.

        - next step of https://bugs.webkit.org/show_bug.cgi?id=21295
          Turn ExecState into a call frame pointer.

        Remove m_globalObject and m_globalData from ExecState.

        SunSpider says this is a wash (slightly faster but not statistically
        significant); which is good enough since it's a preparation step and
        not supposed to be a spedup.

        * API/JSCallbackFunction.cpp:
        (JSC::JSCallbackFunction::JSCallbackFunction):
        * kjs/ArrayConstructor.cpp:
        (JSC::ArrayConstructor::ArrayConstructor):
        * kjs/BooleanConstructor.cpp:
        (JSC::BooleanConstructor::BooleanConstructor):
        * kjs/DateConstructor.cpp:
        (JSC::DateConstructor::DateConstructor):
        * kjs/ErrorConstructor.cpp:
        (JSC::ErrorConstructor::ErrorConstructor):
        * kjs/FunctionPrototype.cpp:
        (JSC::FunctionPrototype::FunctionPrototype):
        * kjs/JSFunction.cpp:
        (JSC::JSFunction::JSFunction):
        * kjs/NativeErrorConstructor.cpp:
        (JSC::NativeErrorConstructor::NativeErrorConstructor):
        * kjs/NumberConstructor.cpp:
        (JSC::NumberConstructor::NumberConstructor):
        * kjs/ObjectConstructor.cpp:
        (JSC::ObjectConstructor::ObjectConstructor):
        * kjs/PrototypeFunction.cpp:
        (JSC::PrototypeFunction::PrototypeFunction):
        * kjs/RegExpConstructor.cpp:
        (JSC::RegExpConstructor::RegExpConstructor):
        * kjs/StringConstructor.cpp:
        (JSC::StringConstructor::StringConstructor):
        Pass JSGlobalData* instead of ExecState* to the InternalFunction
        constructor.

        * API/OpaqueJSString.cpp: Added now-needed include.

        * JavaScriptCore.exp: Updated.

        * VM/CTI.cpp:
        (JSC::CTI::emitSlowScriptCheck): Changed to use ARGS_globalData
        instead of ARGS_exec.

        * VM/CTI.h: Added a new argument to the CTI, the global data pointer.
        While it's possible to get to the global data pointer using the
        ExecState pointer, it's slow enough that it's better to just keep
        it around in the CTI arguments.

        * VM/CodeBlock.h: Moved the CodeType enum here from ExecState.h.

        * VM/Machine.cpp:
        (JSC::Machine::execute): Pass fewer arguments when constructing
        ExecState, and pass the global data pointer when invoking CTI.
        (JSC::Machine::firstCallFrame): Added. Used to get the dynamic global
        object, which is in the scope chain of the first call frame.
        (JSC::Machine::cti_op_add): Use globalData instead of exec when
        possible, to keep fast cases fast, since it's now more expensive to
        get to it through the exec pointer.
        (JSC::Machine::cti_timeout_check): Ditto.
        (JSC::Machine::cti_op_put_by_id_second): Ditto.
        (JSC::Machine::cti_op_get_by_id_second): Ditto.
        (JSC::Machine::cti_op_mul): Ditto.
        (JSC::Machine::cti_vm_compile): Ditto.
        (JSC::Machine::cti_op_get_by_val): Ditto.
        (JSC::Machine::cti_op_sub): Ditto.
        (JSC::Machine::cti_op_put_by_val): Ditto.
        (JSC::Machine::cti_op_put_by_val_array): Ditto.
        (JSC::Machine::cti_op_negate): Ditto.
        (JSC::Machine::cti_op_div): Ditto.
        (JSC::Machine::cti_op_pre_dec): Ditto.
        (JSC::Machine::cti_op_post_inc): Ditto.
        (JSC::Machine::cti_op_lshift): Ditto.
        (JSC::Machine::cti_op_bitand): Ditto.
        (JSC::Machine::cti_op_rshift): Ditto.
        (JSC::Machine::cti_op_bitnot): Ditto.
        (JSC::Machine::cti_op_mod): Ditto.
        (JSC::Machine::cti_op_post_dec): Ditto.
        (JSC::Machine::cti_op_urshift): Ditto.
        (JSC::Machine::cti_op_bitxor): Ditto.
        (JSC::Machine::cti_op_bitor): Ditto.
        (JSC::Machine::cti_op_call_eval): Ditto.
        (JSC::Machine::cti_op_throw): Ditto.
        (JSC::Machine::cti_op_is_string): Ditto.
        (JSC::Machine::cti_op_debug): Ditto.
        (JSC::Machine::cti_vm_throw): Ditto.

        * VM/Machine.h: Added firstCallFrame.

        * kjs/DebuggerCallFrame.cpp:
        (JSC::DebuggerCallFrame::evaluate): Pass fewer arguments when
        constructing ExecState.

        * kjs/ExecState.cpp: Deleted contents. Later we'll remove the
        file altogether.

        * kjs/ExecState.h: Removed m_globalObject and m_globalData.
        Moved CodeType into another header.
        (JSC::ExecState::ExecState): Take only a single argument, a
        call frame pointer.
        (JSC::ExecState::dynamicGlobalObject): Get the object from
        the first call frame since it's no longer stored.
        (JSC::ExecState::globalData): Get the global data from the
        scope chain, since we no longer store a pointer to it here.
        (JSC::ExecState::identifierTable): Ditto.
        (JSC::ExecState::propertyNames): Ditto.
        (JSC::ExecState::emptyList): Ditto.
        (JSC::ExecState::lexer): Ditto.
        (JSC::ExecState::parser): Ditto.
        (JSC::ExecState::machine): Ditto.
        (JSC::ExecState::arrayTable): Ditto.
        (JSC::ExecState::dateTable): Ditto.
        (JSC::ExecState::mathTable): Ditto.
        (JSC::ExecState::numberTable): Ditto.
        (JSC::ExecState::regExpTable): Ditto.
        (JSC::ExecState::regExpConstructorTable): Ditto.
        (JSC::ExecState::stringTable): Ditto.
        (JSC::ExecState::heap): Ditto.

        * kjs/FunctionConstructor.cpp:
        (JSC::FunctionConstructor::FunctionConstructor): Pass
        JSGlobalData* instead of ExecState* to the InternalFunction
        constructor.
        (JSC::constructFunction): Pass the global data pointer when
        constructing a new scope chain.

        * kjs/InternalFunction.cpp:
        (JSC::InternalFunction::InternalFunction): Take a JSGlobalData*
        instead of an ExecState*. Later we can change more places to
        work this way -- it's more efficient to take the type you need
        since the caller might already have it.
        * kjs/InternalFunction.h: Ditto.

        * kjs/JSCell.h:
        (JSC::JSCell::operator new): Added an overload that takes a
        JSGlobalData* so you can construct without an ExecState*.

        * kjs/JSGlobalObject.cpp:
        (JSC::JSGlobalObject::init): Moved creation of the global scope
        chain in here, since it now requires a pointer to the global data.
        Moved the initialization of the call frame in here since it requires
        the global scope chain node. Removed the extra argument to ExecState
        when creating the global ExecState*.
        * kjs/JSGlobalObject.h: Removed initialization of globalScopeChain
        and the call frame from the JSGlobalObjectData constructor. Added
        a thisValue argument to the init function.

        * kjs/JSNumberCell.cpp: Added versions of jsNumberCell that take
        JSGlobalData* rather than ExecState*.
        * kjs/JSNumberCell.h:
        (JSC::JSNumberCell::operator new): Added a version that takes
        JSGlobalData*.
        (JSC::JSNumberCell::JSNumberCell): Ditto.
        (JSC::jsNumber): Ditto.
        * kjs/JSString.cpp:
        (JSC::jsString): Ditto.
        (JSC::jsSubstring): Ditto.
        (JSC::jsOwnedString): Ditto.
        * kjs/JSString.h:
        (JSC::JSString::JSString): Changed to take JSGlobalData*.
        (JSC::jsEmptyString): Added a version that takes JSGlobalData*.
        (JSC::jsSingleCharacterString): Ditto.
        (JSC::jsSingleCharacterSubstring): Ditto.
        (JSC::jsNontrivialString): Ditto.
        (JSC::JSString::getIndex): Ditto.
        (JSC::jsString): Ditto.
        (JSC::jsSubstring): Ditto.
        (JSC::jsOwnedString): Ditto.

        * kjs/ScopeChain.h: Added a globalData pointer to each node.
        (JSC::ScopeChainNode::ScopeChainNode): Initialize the globalData
        pointer.
        (JSC::ScopeChainNode::push): Set the global data pointer in the
        new node.
        (JSC::ScopeChain::ScopeChain): Take a globalData argument.

        * kjs/SmallStrings.cpp:
        (JSC::SmallStrings::createEmptyString): Take JSGlobalData* instead of
        ExecState*.
        (JSC::SmallStrings::createSingleCharacterString): Ditto.
        * kjs/SmallStrings.h:
        (JSC::SmallStrings::emptyString): Ditto.
        (JSC::SmallStrings::singleCharacterString): Ditto.

2008-10-03  Cameron Zwarich  <zwarich@apple.com>

        Reviewed by Geoff Garen.

        Bug 21343: REGRESSSION (r37160): ecma_3/ExecutionContexts/10.1.3-1.js and js1_4/Functions/function-001.js fail on 64-bit
        <https://bugs.webkit.org/show_bug.cgi?id=21343>

        Add a workaround for a bug in GCC, which affects GCC 4.0, GCC 4.2, and
        llvm-gcc 4.2. I put it in an #ifdef because it was a slight regression
        on SunSpider in 32-bit, although that might be entirely random.

        * kjs/Arguments.cpp:
        (JSC::Arguments::getOwnPropertySlot):

2008-10-03  Darin Adler  <darin@apple.com>

        Rubber stamped by Alexey Proskuryakov.

        * kjs/Shell.cpp: (main): Don't delete JSGlobalData. Later, we need to change
        this tool to use public JavaScriptCore API instead.

2008-10-03  Darin Adler  <darin@apple.com>

        Suggested by Alexey Proskuryakov.

        * kjs/JSGlobalData.cpp:
        (JSC::JSGlobalData::~JSGlobalData): Remove call to heap.destroy() because
        it's too late to ref the JSGlobalData object once it's already being
        destroyed. In practice this is not a problem because WebCore's JSGlobalData
        is never destroyed and JSGlobalContextRelease takes care of calling
        heap.destroy() in advance.

2008-10-02  Oliver Hunt  <oliver@apple.com>

        Reviewed by Maciej Stachowiak.

        Replace SSE3 check with an SSE2 check, and implement SSE2 check on windows.

        5.6% win on SunSpider on windows.

        * VM/CTI.cpp:
        (JSC::isSSE2Present):
        (JSC::CTI::compileBinaryArithOp):
        (JSC::CTI::compileBinaryArithOpSlowCase):

2008-10-03  Maciej Stachowiak  <mjs@apple.com>

        Rubber stamped by Cameron Zwarich.
        
        - fix mistaken change of | to || which caused a big perf regression on EarleyBoyer

        * kjs/grammar.y:

2008-10-02  Darin Adler  <darin@apple.com>

        Reviewed by Geoff Garen.

        - https://bugs.webkit.org/show_bug.cgi?id=21321
          Bug 21321: speed up JavaScriptCore by inlining Heap in JSGlobalData

        1.019x as fast on SunSpider.

        * API/JSBase.cpp:
        (JSEvaluateScript): Use heap. instead of heap-> to work with the heap.
        (JSCheckScriptSyntax): Ditto.
        (JSGarbageCollect): Ditto.
        (JSReportExtraMemoryCost): Ditto.
        * API/JSContextRef.cpp:
        (JSGlobalContextRetain): Ditto.
        (JSGlobalContextRelease): Destroy the heap with the destroy function instead
        of the delete operator.
        (JSContextGetGlobalObject): Use heap. instead of heap-> to work with the heap.
        * API/JSObjectRef.cpp:
        (JSObjectMake): Use heap. instead of heap-> to work with the heap.
        (JSObjectMakeFunctionWithCallback): Ditto.
        (JSObjectMakeConstructor): Ditto.
        (JSObjectMakeFunction): Ditto.
        (JSObjectMakeArray): Ditto.
        (JSObjectMakeDate): Ditto.
        (JSObjectMakeError): Ditto.
        (JSObjectMakeRegExp): Ditto.
        (JSObjectHasProperty): Ditto.
        (JSObjectGetProperty): Ditto.
        (JSObjectSetProperty): Ditto.
        (JSObjectGetPropertyAtIndex): Ditto.
        (JSObjectSetPropertyAtIndex): Ditto.
        (JSObjectDeleteProperty): Ditto.
        (JSObjectCallAsFunction): Ditto.
        (JSObjectCallAsConstructor): Ditto.
        (JSObjectCopyPropertyNames): Ditto.
        (JSPropertyNameAccumulatorAddName): Ditto.
        * API/JSValueRef.cpp:
        (JSValueIsEqual): Ditto.
        (JSValueIsInstanceOfConstructor): Ditto.
        (JSValueMakeNumber): Ditto.
        (JSValueMakeString): Ditto.
        (JSValueToNumber): Ditto.
        (JSValueToStringCopy): Ditto.
        (JSValueToObject): Ditto.
        (JSValueProtect): Ditto.
        (JSValueUnprotect): Ditto.

        * kjs/ExecState.h:
        (JSC::ExecState::heap): Update to use the & operator.

        * kjs/JSGlobalData.cpp:
        (JSC::JSGlobalData::JSGlobalData): Update to initialize a heap member
        instead of calling new to make a heap.
        (JSC::JSGlobalData::~JSGlobalData): Destroy the heap with the destroy
        function instead of the delete operator.
        * kjs/JSGlobalData.h: Change from Heap* to a Heap.
        * kjs/JSGlobalObject.cpp:
        (JSC::JSGlobalObject::mark): Use the & operator here.
        (JSC::JSGlobalObject::operator new): Use heap. instead of heap-> to work
        with the heap.

2008-10-02  Cameron Zwarich  <zwarich@apple.com>

        Reviewed by Geoff Garen.

        Bug 21317: Replace RegisterFile size and capacity information with Register pointers
        <https://bugs.webkit.org/show_bug.cgi?id=21317>

        This is a 2.3% speedup on the V8 DeltaBlue benchmark, a 3.3% speedup on
        the V8 Raytrace benchmark, and a 1.0% speedup on SunSpider.

        * VM/Machine.cpp:
        (JSC::slideRegisterWindowForCall):
        (JSC::Machine::callEval):
        (JSC::Machine::execute):
        (JSC::Machine::privateExecute):
        (JSC::Machine::cti_op_call_JSFunction):
        (JSC::Machine::cti_op_construct_JSConstruct):
        * VM/RegisterFile.cpp:
        (JSC::RegisterFile::~RegisterFile):
        * VM/RegisterFile.h:
        (JSC::RegisterFile::RegisterFile):
        (JSC::RegisterFile::start):
        (JSC::RegisterFile::end):
        (JSC::RegisterFile::size):
        (JSC::RegisterFile::shrink):
        (JSC::RegisterFile::grow):
        (JSC::RegisterFile::lastGlobal):
        (JSC::RegisterFile::markGlobals):
        (JSC::RegisterFile::markCallFrames):
        * kjs/JSGlobalObject.cpp:
        (JSC::JSGlobalObject::copyGlobalsTo):

2008-10-02  Cameron Zwarich  <zwarich@apple.com>

        Rubber-stamped by Darin Adler.

        Change bitwise operations introduced in r37166 to boolean operations. We
        only use bitwise operations over boolean operations for increasing
        performance in extremely hot code, but that does not apply to anything
        in the parser.

        * kjs/grammar.y:

2008-10-02  Gavin Barraclough  <barraclough@apple.com>

        Reviewed by Darin Adler.

        Fix for bug #21232 - should reset m_isPendingDash on flush,
        and should allow '\-' as beginning or end of a range (though
        not to specifiy a range itself).

        * ChangeLog:
        * wrec/CharacterClassConstructor.cpp:
        (JSC::CharacterClassConstructor::put):
        (JSC::CharacterClassConstructor::flush):
        * wrec/CharacterClassConstructor.h:
        (JSC::CharacterClassConstructor::flushBeforeEscapedHyphen):
        * wrec/WREC.cpp:
        (JSC::WRECGenerator::generateDisjunction):
        (JSC::WRECParser::parseCharacterClass):
        (JSC::WRECParser::parseDisjunction):
        * wrec/WREC.h:

2008-10-02  Darin Adler  <darin@apple.com>

        Reviewed by Sam Weinig.

        - remove the "static" from declarations in a header file, since we
          don't want them to have internal linkage

        * VM/Machine.h: Remove the static keyword from the constant and the
        three inline functions that Geoff just moved here.

2008-10-02  Geoffrey Garen  <ggaren@apple.com>

        Reviewed by Sam Weinig.
        
        Fixed https://bugs.webkit.org/show_bug.cgi?id=21283.
        Profiler Crashes When Started

        * VM/Machine.cpp:
        * VM/Machine.h:
        (JSC::makeHostCallFramePointer):
        (JSC::isHostCallFrame):
        (JSC::stripHostCallFrameBit): Moved some things to the header so
        JSGlobalObject could use them.

        * kjs/JSGlobalObject.h:
        (JSC::JSGlobalObject::JSGlobalObjectData::JSGlobalObjectData): Call the
        new makeHostCallFramePointer API, since 0 no longer indicates a host
        call frame.

2008-10-02  Alexey Proskuryakov  <ap@webkit.org>

        Reviewed by Darin Adler.

        https://bugs.webkit.org/show_bug.cgi?id=21304
        Stop using a static wrapper map for WebCore JS bindings

        * kjs/JSGlobalData.cpp:
        (JSC::JSGlobalData::JSGlobalData):
        (JSC::JSGlobalData::~JSGlobalData):
        (JSC::JSGlobalData::ClientData::~ClientData):
        * kjs/JSGlobalData.h:
        Added a client data member to JSGlobalData. WebCore will use it to store bindings-related
        global data.

        * JavaScriptCore.exp: Export virtual ClientData destructor.

2008-10-02  Geoffrey Garen  <ggaren@apple.com>

        Not reviewed.
        
        Try to fix Qt build.

        * kjs/Error.h:

2008-10-01  Geoffrey Garen  <ggaren@apple.com>

        Reviewed by Darin Adler and Cameron Zwarich.

        Preliminary step toward dynamic recompilation: Standardized and
        simplified the parsing interface.
        
        The main goal in this patch is to make it easy to ask for a duplicate
        compilation, and get back a duplicate result -- same source URL, same
        debugger / profiler ID, same toString behavior, etc.
        
        The basic unit of compilation and evaluation is now SourceCode, which
        encompasses a SourceProvider, a range in that provider, and a starting
        line number.

        A SourceProvider now encompasses a source URL, and *is* a source ID,
        since a pointer is a unique identifier.

        * API/JSBase.cpp:
        (JSEvaluateScript):
        (JSCheckScriptSyntax): Provide a SourceCode to the Interpreter, since
        other APIs are no longer supported.
        
        * VM/CodeBlock.h:
        (JSC::EvalCodeCache::get): Provide a SourceCode to the Interpreter, since
        other APIs are no longer supported.
        (JSC::CodeBlock::CodeBlock): ASSERT something that used to be ASSERTed
        by our caller -- this is a better bottleneck.

        * VM/CodeGenerator.cpp:
        (JSC::CodeGenerator::CodeGenerator): Updated for the fact that
        FunctionBodyNode's parameters are no longer a WTF::Vector.

        * kjs/Arguments.cpp:
        (JSC::Arguments::Arguments): ditto

        * kjs/DebuggerCallFrame.cpp:
        (JSC::DebuggerCallFrame::evaluate): Provide a SourceCode to the Parser,
        since other APIs are no longer supported.

        * kjs/FunctionConstructor.cpp:
        (JSC::constructFunction): Provide a SourceCode to the Parser, since
        other APIs are no longer supported. Adopt FunctionBodyNode's new
        "finishParsing" API.

        * kjs/JSFunction.cpp:
        (JSC::JSFunction::lengthGetter):
        (JSC::JSFunction::getParameterName): Updated for the fact that
        FunctionBodyNode's parameters are no longer a wtf::Vector.

        * kjs/JSFunction.h: Nixed some cruft.

        * kjs/JSGlobalObjectFunctions.cpp:
        (JSC::globalFuncEval): Provide a SourceCode to the Parser, since
        other APIs are no longer supported. 

        * kjs/Parser.cpp:
        (JSC::Parser::parse): Require a SourceCode argument, instead of a bunch
        of broken out parameters. Stop tracking sourceId as an integer, since we
        use the SourceProvider pointer for this now. Don't clamp the
        startingLineNumber, since SourceCode does that now.

        * kjs/Parser.h:
        (JSC::Parser::parse): Standardized the parsing interface to require a
        SourceCode.

        * kjs/Shell.cpp:
        (functionRun):
        (functionLoad):
        (prettyPrintScript):
        (runWithScripts):
        (runInteractive): Provide a SourceCode to the Interpreter, since
        other APIs are no longer supported.

        * kjs/SourceProvider.h:
        (JSC::SourceProvider::SourceProvider):
        (JSC::SourceProvider::url):
        (JSC::SourceProvider::asId):
        (JSC::UStringSourceProvider::create):
        (JSC::UStringSourceProvider::UStringSourceProvider): Added new
        responsibilities described above.

        * kjs/SourceRange.h:
        (JSC::SourceCode::SourceCode):
        (JSC::SourceCode::toString):
        (JSC::SourceCode::provider):
        (JSC::SourceCode::firstLine):
        (JSC::SourceCode::data):
        (JSC::SourceCode::length): Added new responsibilities described above.
        Renamed SourceRange to SourceCode, based on review feedback. Added
        a makeSource function for convenience.

        * kjs/debugger.h: Provide a SourceCode to the client, since other APIs
        are no longer supported.

        * kjs/grammar.y: Provide startingLineNumber when creating a SourceCode.

        * kjs/debugger.h: Treat sourceId as intptr_t to avoid loss of precision
        on 64bit platforms.

        * kjs/interpreter.cpp:
        (JSC::Interpreter::checkSyntax):
        (JSC::Interpreter::evaluate):
        * kjs/interpreter.h: Require a SourceCode instead of broken out arguments.

        * kjs/lexer.cpp:
        (JSC::Lexer::setCode):
        * kjs/lexer.h:
        (JSC::Lexer::sourceRange): Fold together the SourceProvider and line number
        into a SourceCode. Fixed a bug where the Lexer would accidentally keep
        alive the last SourceProvider forever.

        * kjs/nodes.cpp:
        (JSC::ScopeNode::ScopeNode):
        (JSC::ProgramNode::ProgramNode):
        (JSC::ProgramNode::create):
        (JSC::EvalNode::EvalNode):
        (JSC::EvalNode::generateCode):
        (JSC::EvalNode::create):
        (JSC::FunctionBodyNode::FunctionBodyNode):
        (JSC::FunctionBodyNode::finishParsing):
        (JSC::FunctionBodyNode::create):
        (JSC::FunctionBodyNode::generateCode):
        (JSC::ProgramNode::generateCode):
        (JSC::FunctionBodyNode::paramString):
        * kjs/nodes.h:
        (JSC::ScopeNode::):
        (JSC::ScopeNode::sourceId):
        (JSC::FunctionBodyNode::):
        (JSC::FunctionBodyNode::parameterCount):
        (JSC::FuncExprNode::):
        (JSC::FuncDeclNode::): Store a SourceCode in all ScopeNodes, since
        SourceCode is now responsible for tracking URL, ID, etc. Streamlined
        some ad hoc FunctionBodyNode fixups into a "finishParsing" function, to
        help make clear what you need to do in order to finish parsing a
        FunctionBodyNode.

        * wtf/Vector.h:
        (WTF::::releaseBuffer): Don't ASSERT that releaseBuffer() is only called
        when buffer is not 0, since FunctionBodyNode is more than happy
        to get back a 0 buffer, and other functions like RefPtr::release() allow
        for 0, too.

2008-10-01  Cameron Zwarich  <zwarich@apple.com>

        Reviewed by Maciej Stachowiak.

        Bug 21289: REGRESSION (r37160): Inspector crashes on load
        <https://bugs.webkit.org/show_bug.cgi?id=21289>

        The code in Arguments::mark() in r37160 was wrong. It marks indices in
        d->registers, but that makes no sense (they are local variables, not
        arguments). It should mark those indices in d->registerArray instead.

        This patch also changes Arguments::copyRegisters() to use d->numParameters
        instead of recomputing it.

        * kjs/Arguments.cpp:
        (JSC::Arguments::mark):
        * kjs/Arguments.h:
        (JSC::Arguments::copyRegisters):

2008-09-30  Darin Adler  <darin@apple.com>

        Reviewed by Eric Seidel.

        - https://bugs.webkit.org/show_bug.cgi?id=21214
          work on getting rid of ExecState

        Eliminate some unneeded uses of dynamicGlobalObject.

        * API/JSClassRef.cpp:
        (OpaqueJSClass::contextData): Changed to use a map in the global data instead
        of on the global object. Also fixed to use only a single hash table lookup.

        * API/JSObjectRef.cpp:
        (JSObjectMakeConstructor): Use lexicalGlobalObject rather than dynamicGlobalObject
        to get the object prototype.

        * kjs/ArrayPrototype.cpp:
        (JSC::arrayProtoFuncToString): Use arrayVisitedElements set in global data rather
        than in the global object.
        (JSC::arrayProtoFuncToLocaleString): Ditto.
        (JSC::arrayProtoFuncJoin): Ditto.

        * kjs/JSGlobalData.cpp:
        (JSC::JSGlobalData::JSGlobalData): Don't initialize opaqueJSClassData, since
        it's no longer a pointer.
        (JSC::JSGlobalData::~JSGlobalData): We still need to delete all the values, but
        we don't need to delete the map since it's no longer a pointer.

        * kjs/JSGlobalData.h: Made opaqueJSClassData a map instead of a pointer to a map.
        Also added arrayVisitedElements.

        * kjs/JSGlobalObject.h: Removed arrayVisitedElements.

        * kjs/Shell.cpp:
        (functionRun): Use lexicalGlobalObject instead of dynamicGlobalObject.
        (functionLoad): Ditto.

2008-10-01  Cameron Zwarich  <zwarich@apple.com>

        Not reviewed.

        Speculative Windows build fix.

        * kjs/grammar.y:

2008-10-01  Cameron Zwarich  <zwarich@apple.com>

        Reviewed by Darin Adler.

        Bug 21123: using "arguments" in a function should not force creation of an activation object
        <https://bugs.webkit.org/show_bug.cgi?id=21123>

        Make the 'arguments' object not require a JSActivation. We store the
        'arguments' object in the OptionalCalleeArguments call frame slot. We
        need to be able to get the original 'arguments' object to tear it off
        when returning from a function, but 'arguments' may be assigned to in a
        number of ways.

        Therefore, we use the OptionalCalleeArguments slot when we want to get
        the original activation or we know that 'arguments' was not assigned a
        different value. When 'arguments' may have been assigned a new value,
        we use a new local variable that is initialized with 'arguments'. Since
        a function parameter named 'arguments' may overwrite the value of
        'arguments', we also need to be careful to look up 'arguments' in the
        symbol table, so we get the parameter named 'arguments' instead of the
        local variable that we have added for holding the 'arguments' object.

        This is a 19.1% win on the V8 Raytrace benchmark using the SunSpider
        harness, and a 20.7% win using the V8 harness. This amounts to a 6.5%
        total speedup on the V8 benchmark suite using the V8 harness.

        * VM/CTI.cpp:
        (JSC::CTI::privateCompileMainPass):
        * VM/CodeBlock.h:
        * VM/CodeGenerator.cpp:
        (JSC::CodeGenerator::CodeGenerator):
        * VM/Machine.cpp:
        (JSC::Machine::unwindCallFrame):
        (JSC::Machine::privateExecute):
        (JSC::Machine::retrieveArguments):
        (JSC::Machine::cti_op_init_arguments):
        (JSC::Machine::cti_op_ret_activation_arguments):
        * VM/Machine.h:
        * VM/RegisterFile.h:
        (JSC::RegisterFile::):
        * kjs/Arguments.cpp:
        (JSC::Arguments::mark):
        (JSC::Arguments::fillArgList):
        (JSC::Arguments::getOwnPropertySlot):
        (JSC::Arguments::put):
        * kjs/Arguments.h:
        (JSC::Arguments::setRegisters):
        (JSC::Arguments::init):
        (JSC::Arguments::Arguments):
        (JSC::Arguments::copyRegisters):
        (JSC::JSActivation::copyRegisters):
        * kjs/JSActivation.cpp:
        (JSC::JSActivation::argumentsGetter):
        * kjs/JSActivation.h:
        (JSC::JSActivation::JSActivationData::JSActivationData):
        * kjs/grammar.y:
        * kjs/nodes.h:
        (JSC::ScopeNode::setUsesArguments):
        * masm/X86Assembler.h:
        (JSC::X86Assembler::):
        (JSC::X86Assembler::orl_mr):

2008-10-01  Kevin McCullough  <kmccullough@apple.com>

        Rubberstamped by Geoff Garen.

        Remove BreakpointCheckStatement because it's not used anymore.
        No effect on sunspider or the jsc tests.

        * kjs/nodes.cpp:
        * kjs/nodes.h:

2008-09-30  Oliver Hunt  <oliver@apple.com>

        Reviewed by Geoff Garen.

        Improve performance of CTI on windows.

        Currently on platforms where the compiler doesn't allow us to safely
        index relative to the address of a parameter we need to actually
        provide a pointer to CTI runtime call arguments.  This patch improves
        performance in this case by making the CTI logic for restoring this
        parameter much less conservative by only resetting it before we actually
        make a call, rather than between each and every SF bytecode we generate
        code for.

        This results in a 3.6% progression on the v8 benchmark when compiled with MSVC.

        * VM/CTI.cpp:
        (JSC::CTI::emitCall):
        (JSC::CTI::compileOpCall):
        (JSC::CTI::privateCompileMainPass):
        (JSC::CTI::privateCompileSlowCases):
        (JSC::CTI::privateCompilePutByIdTransition):
        * VM/CTI.h:
        * masm/X86Assembler.h:
        * wtf/Platform.h:

2008-09-30  Maciej Stachowiak  <mjs@apple.com>

        Reviewed by Oliver Hunt.

        - track uses of "this", "with" and "catch" in the parser
        
        Knowing this up front will be useful for future optimizations.
        
        Perf and correctness remain the same.
        
        * kjs/NodeInfo.h:
        * kjs/grammar.y:

2008-09-30  Sam Weinig  <sam@webkit.org>

        Reviewed by Mark Rowe.

        Add WebKitAvailability macros for JSObjectMakeArray, JSObjectMakeDate, JSObjectMakeError,
        and JSObjectMakeRegExp

        * API/JSObjectRef.h:

2008-09-30  Darin Adler  <darin@apple.com>

        Reviewed by Geoff Garen.

        - https://bugs.webkit.org/show_bug.cgi?id=21214
          work on getting rid of ExecState

        Replaced the m_prev field of ExecState with a bit in the
        call frame pointer to indicate "host" call frames.

        * VM/Machine.cpp:
        (JSC::makeHostCallFramePointer): Added. Sets low bit.
        (JSC::isHostCallFrame): Added. Checks low bit.
        (JSC::stripHostCallFrameBit): Added. Clears low bit.
        (JSC::Machine::unwindCallFrame): Replaced null check that was
        formerly used to detect host call frames with an isHostCallFrame check.
        (JSC::Machine::execute): Pass in a host call frame pointer rather than
        always passing 0 when starting execution from the host. This allows us
        to follow the entire call frame pointer chain when desired, or to stop
        at the host calls when that's desired.
        (JSC::Machine::privateExecute): Replaced null check that was
        formerly used to detect host call frames with an isHostCallFrame check.
        (JSC::Machine::retrieveCaller): Ditto.
        (JSC::Machine::retrieveLastCaller): Ditto.
        (JSC::Machine::callFrame): Removed the code to walk up m_prev pointers
        and replaced it with code that uses the caller pointer and uses the
        stripHostCallFrameBit function.

        * kjs/ExecState.cpp: Removed m_prev.
        * kjs/ExecState.h: Ditto.

2008-09-30  Cameron Zwarich  <zwarich@apple.com>

        Reviewed by Geoff Garen.

        Move all detection of 'arguments' in a lexical scope to the parser, in
        preparation for fixing

        Bug 21123: using "arguments" in a function should not force creation of an activation object
        <https://bugs.webkit.org/show_bug.cgi?id=21123>

        * VM/CodeGenerator.cpp:
        (JSC::CodeGenerator::CodeGenerator):
        * kjs/NodeInfo.h:
        * kjs/grammar.y:

2008-09-30  Geoffrey Garen  <ggaren@apple.com>

        Not reviewed.

        * kjs/Shell.cpp:
        (runWithScripts): Fixed indentation.

2008-09-30  Mark Rowe  <mrowe@apple.com>

        Rubber-stamped by Sam Weinig.

        Build fix.  Move InternalFunction::classInfo implementation into the .cpp
        file to prevent the vtable for InternalFunction being generated as a weak symbol.
        Has no effect on SunSpider.

        * kjs/InternalFunction.cpp:
        (JSC::InternalFunction::classInfo):
        * kjs/InternalFunction.h:

2008-09-29  Maciej Stachowiak  <mjs@apple.com>

        Reviewed by Darin Adler.
        
        - optimize appending a number to a string
        https://bugs.webkit.org/show_bug.cgi?id=21203
        
        It's pretty common in real-world code (and on some of the v8
        benchmarks) to append a number to a string, so I made this one of
        the fast cases, and also added support to UString to do it
        directly without allocating a temporary UString.
        
        ~1% speedup on v8 benchmark.

        * VM/Machine.cpp:
        (JSC::jsAddSlowCase): Make this NEVER_INLINE because somehow otherwise
        the change is a regression.
        (JSC::jsAdd): Handle number + string special case.
        (JSC::Machine::cti_op_add): Integrate much of the logic of jsAdd to
        avoid exception check in the str + str, num + num and str + num cases.
        * kjs/ustring.cpp:
        (JSC::expandedSize): Make this a non-member function, since it needs to be 
        called in non-member functions but not outside this file.
        (JSC::expandCapacity): Ditto.
        (JSC::UString::expandCapacity): Call the non-member version. 
        (JSC::createRep): Helper to make a rep from a char*.
        (JSC::UString::UString): Use above helper.
        (JSC::concatenate): Guts of concatenating constructor for cases where first
        item is a UString::Rep, and second is a UChar* and length, or a char*.
        (JSC::UString::append): Implement for cases where first item is a UString::Rep,
        and second is an int or double. Sadly duplicates logic of UString::from(int)
        and UString::from(double).
        * kjs/ustring.h:

2008-09-29  Darin Adler  <darin@apple.com>

        Reviewed by Sam Weinig.

        - https://bugs.webkit.org/show_bug.cgi?id=21214
          work on getting rid of ExecState

        * JavaScriptCore.exp: Updated since JSGlobalObject::init
        no longer takes a parameter.

        * VM/Machine.cpp:
        (JSC::Machine::execute): Removed m_registerFile argument
        for ExecState constructors.

        * kjs/DebuggerCallFrame.cpp:
        (JSC::DebuggerCallFrame::evaluate): Removed globalThisValue
        argument for ExecState constructor.

        * kjs/ExecState.cpp:
        (JSC::ExecState::ExecState): Removed globalThisValue and
        registerFile arguments to constructors.

        * kjs/ExecState.h: Removed m_globalThisValue and
        m_registerFile data members.

        * kjs/JSGlobalObject.cpp:
        (JSC::JSGlobalObject::init): Removed globalThisValue
        argument for ExecState constructor.

        * kjs/JSGlobalObject.h:
        (JSC::JSGlobalObject::JSGlobalObject): Got rid of parameter
        for the init function.

2008-09-29  Geoffrey Garen  <ggaren@apple.com>

        Rubber-stamped by Cameron Zwarich.
        
        Fixed https://bugs.webkit.org/show_bug.cgi?id=21225
        Machine::retrieveLastCaller should check for a NULL codeBlock
        
        In order to crash, you would need to call retrieveCaller in a situation
        where you had two host call frames in a row in the register file. I
        don't know how to make that happen, or if it's even possible, so I don't
        have a test case -- but better safe than sorry!

        * VM/Machine.cpp:
        (JSC::Machine::retrieveLastCaller):

2008-09-29  Geoffrey Garen  <ggaren@apple.com>

        Reviewed by Cameron Zwarich.
        
        Store the callee ScopeChain, not the caller ScopeChain, in the call frame
        header. Nix the "scopeChain" local variable and ExecState::m_scopeChain, and
        access the callee ScopeChain through the call frame header instead.

        Profit: call + return are simpler, because they don't have to update the
        "scopeChain" local variable, or ExecState::m_scopeChain.
        
        Because CTI keeps "r" in a register, reading the callee ScopeChain relative
        to "r" can be very fast, in any cases we care to optimize.

        0% speedup on empty function call benchmark. (5.5% speedup in bytecode.)
        0% speedup on SunSpider. (7.5% speedup on controlflow-recursive.)
        2% speedup on SunSpider --v8.
        2% speedup on v8 benchmark.

        * VM/CTI.cpp: Changed scope chain access to read the scope chain from
        the call frame header. Sped up op_ret by changing it not to fuss with
        the "scopeChain" local variable or ExecState::m_scopeChain.

        * VM/CTI.h: Updated CTI trampolines not to take a ScopeChainNode*
        argument, since that's stored in the call frame header now.

        * VM/Machine.cpp: Access "scopeChain" and "codeBlock" through new helper
        functions that read from the call frame header. Updated functions operating
        on ExecState::m_callFrame to account for / take advantage of the fact that
        Exec:m_callFrame is now never NULL.
        
        Fixed a bug in op_construct, where it would use the caller's default
        object prototype, rather than the callee's, when constructing a new object.

        * VM/Machine.h: Made some helper functions available. Removed
        ScopeChainNode* arguments to a lot of functions, since the ScopeChainNode*
        is now stored in the call frame header.

        * VM/RegisterFile.h: Renamed "CallerScopeChain" to "ScopeChain", since
        that's what it is now.

        * kjs/DebuggerCallFrame.cpp: Updated for change to ExecState signature.

        * kjs/ExecState.cpp:
        * kjs/ExecState.h: Nixed ExecState::m_callFrame, along with the unused
        isGlobalObject function.

        * kjs/JSGlobalObject.cpp:
        * kjs/JSGlobalObject.h: Gave the global object a fake call frame in
        which to store the global scope chain, since our code now assumes that
        it can always read the scope chain out of the ExecState's call frame.

2008-09-29  Cameron Zwarich  <cwzwarich@uwaterloo.ca>

        Reviewed by Sam Weinig.

        Remove the isActivationObject() virtual method on JSObject and use
        StructureID information instead. This should be slightly faster, but
        isActivationObject() is only used in assertions and unwinding the stack
        for exceptions.

        * VM/Machine.cpp:
        (JSC::depth):
        (JSC::Machine::unwindCallFrame):
        (JSC::Machine::privateExecute):
        (JSC::Machine::cti_op_ret_activation):
        * kjs/JSActivation.cpp:
        * kjs/JSActivation.h:
        * kjs/JSObject.h:

2008-09-29  Peter Gal  <galpeter@inf.u-szeged.hu>

        Reviewed and tweaked by Darin Adler.

        Fix build for non-all-in-one platforms.

        * kjs/StringPrototype.cpp: Added missing ASCIICType.h include.

2008-09-29  Bradley T. Hughes  <bradley.hughes@nokia.com>

        Reviewed by Simon Hausmann.

        Fix compilation with icpc

        * wtf/HashSet.h:
        (WTF::::find):
        (WTF::::contains):

2008-09-29  Thiago Macieira  <thiago.macieira@nokia.com>

        Reviewed by Simon Hausmann.

        Changed copyright from Trolltech ASA to Nokia.
        
        Nokia acquired Trolltech ASA, assets were transferred on September 26th 2008.
        

        * wtf/qt/MainThreadQt.cpp:

2008-09-29  Simon Hausmann  <hausmann@webkit.org>

        Reviewed by Lars Knoll.

        Don't accidentially install libJavaScriptCore.a for the build inside
        Qt.

        * JavaScriptCore.pro:

2008-09-28  Cameron Zwarich  <cwzwarich@uwaterloo.ca>

        Reviewed by Maciej Stachowiak.

        Bug 21200: Allow direct access to 'arguments' without using op_resolve
        <https://bugs.webkit.org/show_bug.cgi?id=21200>

        Allow fast access to the 'arguments' object by adding an extra slot to
        the callframe to store it.

        This is a 3.0% speedup on the V8 Raytrace benchmark.

        * JavaScriptCore.exp:
        * VM/CTI.cpp:
        (JSC::CTI::privateCompileMainPass):
        * VM/CodeBlock.cpp:
        (JSC::CodeBlock::dump):
        * VM/CodeGenerator.cpp:
        (JSC::CodeGenerator::CodeGenerator):
        (JSC::CodeGenerator::registerFor):
        * VM/CodeGenerator.h:
        (JSC::CodeGenerator::registerFor):
        * VM/Machine.cpp:
        (JSC::Machine::initializeCallFrame):
        (JSC::Machine::dumpRegisters):
        (JSC::Machine::privateExecute):
        (JSC::Machine::retrieveArguments):
        (JSC::Machine::cti_op_call_JSFunction):
        (JSC::Machine::cti_op_create_arguments):
        (JSC::Machine::cti_op_construct_JSConstruct):
        * VM/Machine.h:
        * VM/Opcode.h:
        * VM/RegisterFile.h:
        (JSC::RegisterFile::):
        * kjs/JSActivation.cpp:
        (JSC::JSActivation::mark):
        (JSC::JSActivation::argumentsGetter):
        * kjs/JSActivation.h:
        (JSC::JSActivation::JSActivationData::JSActivationData):
        * kjs/NodeInfo.h:
        * kjs/Parser.cpp:
        (JSC::Parser::didFinishParsing):
        * kjs/Parser.h:
        (JSC::Parser::parse):
        * kjs/grammar.y:
        * kjs/nodes.cpp:
        (JSC::ScopeNode::ScopeNode):
        (JSC::ProgramNode::ProgramNode):
        (JSC::ProgramNode::create):
        (JSC::EvalNode::EvalNode):
        (JSC::EvalNode::create):
        (JSC::FunctionBodyNode::FunctionBodyNode):
        (JSC::FunctionBodyNode::create):
        * kjs/nodes.h:
        (JSC::ScopeNode::usesArguments):

2008-09-28  Mark Rowe  <mrowe@apple.com>

        Reviewed by Sam Weinig.

        Add an ASCII fast-path to toLowerCase and toUpperCase.

        The fast path speeds up the common case of an ASCII-only string by up to 60% while adding a less than 5% penalty
        to the less common non-ASCII case.

        This also removes stringProtoFuncToLocaleLowerCase and stringProtoFuncToLocaleUpperCase, which were identical
        to the non-locale variants of the functions.  toLocaleLowerCase and toLocaleUpperCase now use the non-locale
        variants of the functions directly.

        * kjs/StringPrototype.cpp:
        (JSC::stringProtoFuncToLowerCase):
        (JSC::stringProtoFuncToUpperCase):

2008-09-28  Mark Rowe  <mrowe@apple.com>

        Reviewed by Cameron Zwarich.

        Speed up parseInt and parseFloat.

        Repeatedly indexing into a UString is slow, so retrieve a pointer into the underlying buffer once up front
        and use that instead.  This is a 7% win on a parseInt/parseFloat micro-benchmark.

        * kjs/JSGlobalObjectFunctions.cpp:
        (JSC::parseInt):
        (JSC::parseFloat):

2008-09-28  Simon Hausmann  <hausmann@webkit.org>

        Reviewed by David Hyatt.

        In Qt's initializeThreading re-use an existing thread identifier for the main
        thread if it exists.

        currentThread() implicitly creates new identifiers and it could be that
        it is called before initializeThreading().

        * wtf/ThreadingQt.cpp:
        (WTF::initializeThreading):

2008-09-27  Keishi Hattori  <casey.hattori@gmail.com>

        Added Machine::retrieveCaller to the export list.

        Reviewed by Kevin McCullough and Tim Hatcher.

        * JavaScriptCore.exp: Added Machine::retrieveCaller.

2008-09-27  Anders Carlsson  <andersca@apple.com>

        Fix build.

        * VM/CTI.cpp:
        (JSC::):

2008-09-27  Geoffrey Garen  <ggaren@apple.com>

        Reviewed by Cameron Zwarich.
        
        https://bugs.webkit.org/show_bug.cgi?id=21175

        Store the callee CodeBlock, not the caller CodeBlock, in the call frame
        header. Nix the "codeBlock" local variable, and access the callee
        CodeBlock through the call frame header instead.
        
        Profit: call + return are simpler, because they don't have to update the
        "codeBlock" local variable.
        
        Because CTI keeps "r" in a register, reading the callee CodeBlock relative
        to "r" can be very fast, in any cases we care to optimize. Presently,
        no such cases seem important.
        
        Also, stop writing "dst" to the call frame header. CTI doesn't use it.
        
        21.6% speedup on empty function call benchmark.
        3.8% speedup on SunSpider --v8.
        2.1% speedup on v8 benchmark.
        0.7% speedup on SunSpider (6% speedup on controlflow-recursive).
        
        Small regression in bytecode, because currently every op_ret reads the
        callee CodeBlock to check needsFullScopeChain, and bytecode does not
        keep "r" in a register. On-balance, this is probably OK, since CTI is
        our high-performance execution model. Also, this should go away once
        we make needsFullScopeChain statically determinable at parse time.

        * VM/CTI.cpp:
        (JSC::CTI::compileOpCall): The speedup!
        (JSC::CTI::privateCompileSlowCases): ditto

        * VM/CTI.h:
        (JSC::): Fixed up magic trampoline constants to account for the nixed
        "codeBlock" argument.
        (JSC::CTI::execute): Changed trampoline function not to take a "codeBlock"
        argument, since codeBlock is now stored in the call frame header.
        
        * VM/Machine.cpp: Read the callee CodeBlock from the register file. Use
        a NULL CallerRegisters in the call frame header to signal a built-in
        caller, since CodeBlock is now never NULL.

        * VM/Machine.h: Made some stand-alone functions Machine member functions
        so they could call the private codeBlock() accessor in the Register
        class, of which Machine is a friend. Renamed "CallerCodeBlock" to
        "CodeBlock", since it's no longer the caller's CodeBlock.

        * VM/RegisterFile.h: Marked some methods const to accommodate a 
        const RegisterFile* being passed around in Machine.cpp.

2008-09-26  Jan Michael Alonzo  <jmalonzo@webkit.org>

        Gtk build fix. Not reviewed.

        Narrow-down the target of the JavaScriptCore .lut.h generator so
        it won't try to create the WebCore .lut.hs.

        * GNUmakefile.am:

2008-09-26  Matt Lilek  <webkit@mattlilek.com>

        Reviewed by Tim Hatcher.

        Update FEATURE_DEFINES after ENABLE_CROSS_DOCUMENT_MESSAGING was removed.

        * Configurations/JavaScriptCore.xcconfig:

2008-09-26  Cameron Zwarich  <cwzwarich@uwaterloo.ca>

        Rubber-stamped by Anders Carlson.

        Change the name 'sc' to 'scopeChainNode' in a few places.

        * kjs/nodes.cpp:
        (JSC::EvalNode::generateCode):
        (JSC::FunctionBodyNode::generateCode):
        (JSC::ProgramNode::generateCode):

2008-09-26  Sam Weinig  <sam@webkit.org>

        Reviewed by Darin Adler.

        Patch for https://bugs.webkit.org/show_bug.cgi?id=21152
        Speedup static property get/put

        Convert getting/setting static property values to use static functions
        instead of storing an integer and switching in getValueProperty/putValueProperty.

        * kjs/JSObject.cpp:
        (JSC::JSObject::deleteProperty):
        (JSC::JSObject::getPropertyAttributes):
        * kjs/MathObject.cpp:
        (JSC::MathObject::getOwnPropertySlot):
        * kjs/NumberConstructor.cpp:
        (JSC::numberConstructorNaNValue):
        (JSC::numberConstructorNegInfinity):
        (JSC::numberConstructorPosInfinity):
        (JSC::numberConstructorMaxValue):
        (JSC::numberConstructorMinValue):
        * kjs/PropertySlot.h:
        (JSC::PropertySlot::):
        * kjs/RegExpConstructor.cpp:
        (JSC::regExpConstructorDollar1):
        (JSC::regExpConstructorDollar2):
        (JSC::regExpConstructorDollar3):
        (JSC::regExpConstructorDollar4):
        (JSC::regExpConstructorDollar5):
        (JSC::regExpConstructorDollar6):
        (JSC::regExpConstructorDollar7):
        (JSC::regExpConstructorDollar8):
        (JSC::regExpConstructorDollar9):
        (JSC::regExpConstructorInput):
        (JSC::regExpConstructorMultiline):
        (JSC::regExpConstructorLastMatch):
        (JSC::regExpConstructorLastParen):
        (JSC::regExpConstructorLeftContext):
        (JSC::regExpConstructorRightContext):
        (JSC::setRegExpConstructorInput):
        (JSC::setRegExpConstructorMultiline):
        (JSC::RegExpConstructor::setInput):
        (JSC::RegExpConstructor::setMultiline):
        (JSC::RegExpConstructor::multiline):
        * kjs/RegExpConstructor.h:
        * kjs/RegExpObject.cpp:
        (JSC::regExpObjectGlobal):
        (JSC::regExpObjectIgnoreCase):
        (JSC::regExpObjectMultiline):
        (JSC::regExpObjectSource):
        (JSC::regExpObjectLastIndex):
        (JSC::setRegExpObjectLastIndex):
        * kjs/RegExpObject.h:
        (JSC::RegExpObject::setLastIndex):
        (JSC::RegExpObject::lastIndex):
        (JSC::RegExpObject::RegExpObjectData::RegExpObjectData):
        * kjs/StructureID.cpp:
        (JSC::StructureID::getEnumerablePropertyNames):
        * kjs/create_hash_table:
        * kjs/lexer.cpp:
        (JSC::Lexer::lex):
        * kjs/lookup.cpp:
        (JSC::HashTable::createTable):
        (JSC::HashTable::deleteTable):
        (JSC::setUpStaticFunctionSlot):
        * kjs/lookup.h:
        (JSC::HashEntry::initialize):
        (JSC::HashEntry::setKey):
        (JSC::HashEntry::key):
        (JSC::HashEntry::attributes):
        (JSC::HashEntry::function):
        (JSC::HashEntry::functionLength):
        (JSC::HashEntry::propertyGetter):
        (JSC::HashEntry::propertyPutter):
        (JSC::HashEntry::lexerValue):
        (JSC::HashEntry::):
        (JSC::HashTable::entry):
        (JSC::getStaticPropertySlot):
        (JSC::getStaticValueSlot):
        (JSC::lookupPut):

2008-09-26  Gavin Barraclough  <barraclough@apple.com>

        Reviewed by Maciej Stachowiak & Oliver Hunt.

        Add support for reusing temporary JSNumberCells.  This change is based on the observation
        that if the result of certain operations is a JSNumberCell and is consumed by a subsequent
        operation that would produce a JSNumberCell, we can reuse the object rather than allocating
        a fresh one.  E.g. given the expression ((a * b) * c), we can statically determine that
        (a * b) will have a numeric result (or else it will have thrown an exception), so the result
        will either be a JSNumberCell or a JSImmediate.

        This patch changes three areas of JSC:
            * The AST now tracks type information about the result of each node.
            * This information is consumed in bytecode compilation, and certain bytecode operations
              now carry the statically determined type information about their operands.
            * CTI uses the information in a number of fashions:
                * Where an operand to certain arithmetic operations is reusable, it will plant code
                  to try to perform the operation in JIT code & reuse the cell, where appropriate.
                * Where it can be statically determined that an operand can only be numeric (typically
                  the result of another arithmetic operation) the code will not redundantly check that
                  the JSCell is a JSNumberCell.
                * Where either of the operands to an add are non-numeric do not plant an optimized
                  arithmetic code path, just call straight out to the C function.

        +6% Sunspider (10% progression on 3D, 16% progression on math, 60% progression on access-nbody),
        +1% v8-tests (improvements in raytrace & crypto)

        * VM/CTI.cpp: Add optimized code generation with reuse of temporary JSNumberCells.
        * VM/CTI.h:
        * kjs/JSNumberCell.h:
        * masm/X86Assembler.h:

        * VM/CodeBlock.cpp: Add type information to specific bytecodes.
        * VM/CodeGenerator.cpp:
        * VM/CodeGenerator.h:
        * VM/Machine.cpp:

        * kjs/nodes.cpp: Track static type information for nodes.
        * kjs/nodes.h:
        * kjs/ResultDescriptor.h: (Added)
        * JavaScriptCore.xcodeproj/project.pbxproj:

2008-09-26  Yichao Yin  <yichao.yin@torchmobile.com.cn>

        Reviewed by George Staikos, Maciej Stachowiak.

        Add utility functions needed for upcoming WML code.

        * wtf/ASCIICType.h:
        (WTF::isASCIIPrintable):

2008-09-26  Geoffrey Garen  <ggaren@apple.com>

        Reviewed by Darin Adler.
        
        Reverted the part of r36614 that used static data because static data
        is not thread-safe.

2008-09-26  Geoffrey Garen  <ggaren@apple.com>

        Reviewed by Maciej Stachowiak.
        
        Removed dynamic check for whether the callee needs an activation object.
        Replaced with callee code to create the activation object.

        0.5% speedup on SunSpider.
        No change on v8 benchmark. (Might be a speedup, but it's in range of the
        variance.)

        0.7% speedup on v8 benchmark in bytecode.
        1.3% speedup on empty call benchmark in bytecode.

        * VM/CTI.cpp:
        (JSC::CTI::privateCompileMainPass): Added support for op_init_activation,
        the new opcode that specifies that the callee's initialization should
        create an activation object.
        (JSC::CTI::privateCompile): Removed previous code that did a similar
        thing in an ad-hoc way.

        * VM/CodeBlock.cpp:
        (JSC::CodeBlock::dump): Added a case for dumping op_init_activation.

        * VM/CodeGenerator.cpp:
        (JSC::CodeGenerator::generate): Added fixup code to change op_init to
        op_init_activation if necessary. (With a better parser, we would know
        which to use from the beginning.)

        * VM/Instruction.h:
        (JSC::Instruction::Instruction):
        (WTF::): Faster traits for the instruction vector. An earlier version
        of this patch relied on inserting at the beginning of the vector, and
        depended on this change for speed.

        * VM/Machine.cpp:
        (JSC::Machine::execute): Removed clients of setScopeChain, the old
        abstraction for dynamically checking for whether an activation object
        needed to be created.
        (JSC::Machine::privateExecute): ditto

        (JSC::Machine::cti_op_push_activation): Renamed this function from
        cti_vm_updateScopeChain, and made it faster by removing the call to 
        setScopeChain.
        * VM/Machine.h:

        * VM/Opcode.h: Declared op_init_activation.

2008-09-24  Geoffrey Garen  <ggaren@apple.com>

        Reviewed by Maciej Stachowiak.
        
        Move most of the return code back into the callee, now that the callee
        doesn't have to calculate anything dynamically.
        
        11.5% speedup on empty function call benchmark.
        
        SunSpider says 0.3% faster. SunSpider --v8 says no change.

        * VM/CTI.cpp:
        (JSC::CTI::compileOpCall):
        (JSC::CTI::privateCompileMainPass):
        (JSC::CTI::privateCompileSlowCases):

2008-09-24  Sam Weinig  <sam@webkit.org>

        Reviewed by Maciej Stachowiak.

        Remove staticFunctionGetter.  There is only one remaining user of
        staticFunctionGetter and it can be converted to use setUpStaticFunctionSlot.

        * JavaScriptCore.exp:
        * kjs/lookup.cpp:
        * kjs/lookup.h:

2008-09-24  Maciej Stachowiak  <mjs@apple.com>

        Reviewed by Oliver Hunt.
        
        - inline JIT fast case of op_neq
        - remove extra level of function call indirection from slow cases of eq and neq
        
        1% speedup on Richards

        * VM/CTI.cpp:
        (JSC::CTI::privateCompileMainPass):
        (JSC::CTI::privateCompileSlowCases):
        * VM/Machine.cpp:
        (JSC::Machine::privateExecute):
        (JSC::Machine::cti_op_eq):
        (JSC::Machine::cti_op_neq):
        * kjs/operations.cpp:
        (JSC::equal):
        (JSC::equalSlowCase):
        * kjs/operations.h:
        (JSC::equalSlowCaseInline):

2008-09-24  Sam Weinig  <sam@webkit.org>

        Reviewed by Darin Adler.

        Fix for https://bugs.webkit.org/show_bug.cgi?id=21080
        <rdar://problem/6243534>
        Crash below Function.apply when using a runtime array as the argument list

        Test: plugins/bindings-array-apply-crash.html

        * kjs/FunctionPrototype.cpp:
        (JSC::functionProtoFuncApply): Revert to the slow case if the object inherits from 
        JSArray (via ClassInfo) but is not a JSArray.

2008-09-24  Kevin McCullough  <kmccullough@apple.com>

        Style change.

        * kjs/nodes.cpp:
        (JSC::statementListEmitCode):

2008-09-24  Kevin McCullough  <kmccullough@apple.com>

        Reviewed by Geoff.

        Bug 21031: Breakpoints in the condition of loops only breaks the first
        time
        - Now when setting breakpoints in the condition of a loop (for, while,
        for in, and do while) will successfully break each time throught the
        loop.
        - For 'for' loops we need a little more complicated behavior that cannot
        be accomplished without some more significant changes:
        https://bugs.webkit.org/show_bug.cgi?id=21073

        * kjs/nodes.cpp:
        (JSC::statementListEmitCode): We don't want to blindly emit a debug hook
        at the first line of loops, instead let the loop emit the debug hooks.
        (JSC::DoWhileNode::emitCode):
        (JSC::WhileNode::emitCode):
        (JSC::ForNode::emitCode):
        (JSC::ForInNode::emitCode):
        * kjs/nodes.h:
        (JSC::StatementNode::):
        (JSC::DoWhileNode::):
        (JSC::WhileNode::):
        (JSC::ForInNode::):

2008-09-24  Geoffrey Garen  <ggaren@apple.com>

        Reviewed by Darin Adler.
        
        Fixed <rdar://problem/5605532> Need a SPI for telling JS the size of
        the objects it retains

        * API/tests/testapi.c: Test the new SPI a little.

        * API/JSSPI.cpp: Add the new SPI.
        * API/JSSPI.h: Add the new SPI.
        * JavaScriptCore.exp: Add the new SPI.
        * JavaScriptCore.xcodeproj/project.pbxproj: Add the new SPI.

2008-09-24  Geoffrey Garen  <ggaren@apple.com>

        Reviewed by Darin Adler.

        * API/JSBase.h: Filled in some missing function names.

2008-09-24  Geoffrey Garen  <ggaren@apple.com>

        Reviewed by Cameron Zwarich.
        
        Fixed https://bugs.webkit.org/show_bug.cgi?id=21057
        Crash in RegisterID::deref() running fast/canvas/canvas-putImageData.html

        * VM/CodeGenerator.h: Changed declaration order to ensure the
        m_lastConstant, which is a RefPtr that points into m_calleeRegisters,
        has its destructor called before the destructor for m_calleeRegisters.

2008-09-24  Darin Adler  <darin@apple.com>

        Reviewed by Sam Weinig.

        - https://bugs.webkit.org/show_bug.cgi?id=21047
          speed up ret_activation with inlining

        About 1% on v8-raytrace.

        * JavaScriptCore.exp: Removed JSVariableObject::setRegisters.

        * kjs/JSActivation.cpp: Moved copyRegisters to the header to make it inline.
        * kjs/JSActivation.h:
        (JSC::JSActivation::copyRegisters): Moved here. Also removed the registerArraySize
        argument to setRegisters, since the object doesn't need to store the number of
        registers.

        * kjs/JSGlobalObject.cpp:
        (JSC::JSGlobalObject::reset): Removed unnecessary clearing left over from when we
        used this on objects that weren't brand new. These days, this function is really
        just part of the constructor.

        * kjs/JSGlobalObject.h: Added registerArraySize to JSGlobalObjectData, since
        JSVariableObjectData no longer needs it. Added a setRegisters override here
        that handles storing the size.

        * kjs/JSStaticScopeObject.h: Removed code to set registerArraySize, since it
        no longer exists.

        * kjs/JSVariableObject.cpp: Moved copyRegisterArray and setRegisters to the
        header to make them inline.
        * kjs/JSVariableObject.h: Removed registerArraySize from JSVariableObjectData,
        since it was only used for the global object.
        (JSC::JSVariableObject::copyRegisterArray): Moved here ot make it inline.
        (JSC::JSVariableObject::setRegisters): Moved here to make it inline. Also
        removed the code to set registerArraySize and changed an if statement into
        an assert to save an unnnecessary branch.

2008-09-24  Maciej Stachowiak  <mjs@apple.com>

        Reviewed by Oliver Hunt.
        
        - inline PropertyMap::getOffset to speed up polymorphic lookups
        
        ~1.5% speedup on v8 benchmark
        no effect on SunSpider

        * JavaScriptCore.exp:
        * kjs/PropertyMap.cpp:
        * kjs/PropertyMap.h:
        (JSC::PropertyMap::getOffset):

2008-09-24  Jan Michael Alonzo  <jmalonzo@webkit.org>

        Reviewed by Alp Toker.

        https://bugs.webkit.org/show_bug.cgi?id=20992
        Build fails on GTK+ Mac OS

        * wtf/ThreadingGtk.cpp: Remove platform ifdef as suggested by
          Richard Hult.
        (WTF::initializeThreading):

2008-09-23  Oliver Hunt  <oliver@apple.com>

        Reviewed by Maciej Stachowiak.

        Bug 19968: Slow Script at www.huffingtonpost.com
        <https://bugs.webkit.org/show_bug.cgi?id=19968>

        Finally found the cause of this accursed issue.  It is triggered
        by synchronous creation of a new global object from JS.  The new
        global object resets the timer state in this execution group's
        Machine, taking timerCheckCount to 0.  Then when JS returns the
        timerCheckCount is decremented making it non-zero.  The next time
        we execute JS we will start the timeout counter, however the non-zero
        timeoutCheckCount means we don't reset the timer information. This
        means that the timeout check is now checking the cumulative time
        since the creation of the global object rather than the time since
        JS was last entered.  At this point the slow script dialog is guaranteed
        to eventually be displayed incorrectly unless a page is loaded
        asynchronously (which will reset everything into a sane state).

        The fix for this is rather trivial -- the JSGlobalObject constructor
        should not be resetting the machine timer state.

        * VM/Machine.cpp:
        (JSC::Machine::Machine):
          Now that we can't rely on the GlobalObject initialising the timeout
          state, we do it in the Machine constructor.

        * VM/Machine.h:
        (JSC::Machine::stopTimeoutCheck):
          Add assertions to guard against this happening.

        * kjs/JSGlobalObject.cpp:
        (JSC::JSGlobalObject::init):
          Don't reset the timeout state.

2008-09-23  Geoffrey Garen  <ggaren@apple.com>

        Reviewed by Oliver Hunt.
        
        Fixed https://bugs.webkit.org/show_bug.cgi?id=21038 | <rdar://problem/6240812>
        Uncaught exceptions in regex replace callbacks crash webkit
        
        This was a combination of two problems:
        
        (1) the replace function would continue execution after an exception
        had been thrown.
        
        (2) In some cases, the Machine would return 0 in the case of an exception,
        despite the fact that a few clients dereference the Machine's return
        value without first checking for an exception.
        
        * VM/Machine.cpp:
        (JSC::Machine::execute):
        
        ^ Return jsNull() instead of 0 in the case of an exception, since some
        clients depend on using our return value.
        
        ^ ASSERT that execution does not continue after an exception has been
        thrown, to help catch problems like this in the future.

        * kjs/StringPrototype.cpp:
        (JSC::stringProtoFuncReplace):
        
        ^ Stop execution if an exception has been thrown.

2008-09-23  Geoffrey Garen  <ggaren@apple.com>

        Try to fix the windows build.

        * VM/CTI.cpp:
        (JSC::CTI::compileOpCall):
        (JSC::CTI::privateCompileMainPass):

2008-09-23  Alp Toker  <alp@nuanti.com>

        Build fix.

        * VM/CTI.h:

2008-09-23  Geoffrey Garen  <ggaren@apple.com>

        Reviewed by Darin Adler.

        * wtf/Platform.h: Removed duplicate #if.

2008-09-23  Geoffrey Garen  <ggaren@apple.com>

        Reviewed by Darin Adler.
        
        Changed the layout of the call frame from
        
        { header, parameters, locals | constants, temporaries }
        
        to
        
        { parameters, header | locals, constants, temporaries }
        
        This simplifies function entry+exit, and enables a number of future
        optimizations.
        
        13.5% speedup on empty call benchmark for bytecode; 23.6% speedup on
        empty call benchmark for CTI.
        
        SunSpider says no change. SunSpider --v8 says 1% faster.

        * VM/CTI.cpp:
        
        Added a bit of abstraction for calculating whether a register is a
        constant, since this patch changes that calculation:
        (JSC::CTI::isConstant):
        (JSC::CTI::getConstant):
        (JSC::CTI::emitGetArg):
        (JSC::CTI::emitGetPutArg):
        (JSC::CTI::getConstantImmediateNumericArg):

        Updated for changes to callframe header location:
        (JSC::CTI::emitPutToCallFrameHeader):
        (JSC::CTI::emitGetFromCallFrameHeader):
        (JSC::CTI::printOpcodeOperandTypes):
        
        Renamed to spite Oliver:
        (JSC::CTI::emitInitRegister):
        
        Added an abstraction for emitting a call through a register, so that
        calls through registers generate exception info, too:
        (JSC::CTI::emitCall):

        Updated to match the new callframe header layout, and to support calls
        through registers, which have no destination address:
        (JSC::CTI::compileOpCall):
        (JSC::CTI::privateCompileMainPass):
        (JSC::CTI::privateCompileSlowCases):
        (JSC::CTI::privateCompile):

        * VM/CTI.h:

        More of the above:
        (JSC::CallRecord::CallRecord):

        * VM/CodeBlock.cpp:

        Updated for new register layout:
        (JSC::registerName):
        (JSC::CodeBlock::dump):

        * VM/CodeBlock.h:
        
        Updated CodeBlock to track slightly different information about the
        register frame, and tweaked the style of an ASSERT_NOT_REACHED.
        (JSC::CodeBlock::CodeBlock):
        (JSC::CodeBlock::getStubInfo):

        * VM/CodeGenerator.cpp:
        
        Added some abstraction around constant register allocation, since this
        patch changes it, changed codegen to account for the new callframe
        layout, and added abstraction around register fetching code
        that used to assume that all local registers lived at negative indices,
        since vars now live at positive indices:
        (JSC::CodeGenerator::generate):
        (JSC::CodeGenerator::addVar):
        (JSC::CodeGenerator::addGlobalVar):
        (JSC::CodeGenerator::allocateConstants):
        (JSC::CodeGenerator::CodeGenerator):
        (JSC::CodeGenerator::addParameter):
        (JSC::CodeGenerator::registerFor):
        (JSC::CodeGenerator::constRegisterFor):
        (JSC::CodeGenerator::newRegister):
        (JSC::CodeGenerator::newTemporary):
        (JSC::CodeGenerator::highestUsedRegister):
        (JSC::CodeGenerator::addConstant):
        
        ASSERT that our caller referenced the registers it passed to us.
        Otherwise, we might overwrite them with parameters:
        (JSC::CodeGenerator::emitCall):
        (JSC::CodeGenerator::emitConstruct):

        * VM/CodeGenerator.h:
        
        Added some abstraction for getting a RegisterID for a given index,
        since the rules are a little weird:
        (JSC::CodeGenerator::registerFor):

        * VM/Machine.cpp:

        Utility function to transform a machine return PC to a virtual machine
        return VPC, for the sake of stack unwinding, since both PCs are stored
        in the same location now:
        (JSC::vPCForPC):

        Tweaked to account for new call frame:
        (JSC::Machine::initializeCallFrame):
        
        Tweaked to account for registerOffset supplied by caller:
        (JSC::slideRegisterWindowForCall):

        Tweaked to account for new register layout:
        (JSC::scopeChainForCall):
        (JSC::Machine::callEval):
        (JSC::Machine::dumpRegisters):
        (JSC::Machine::unwindCallFrame):
        (JSC::Machine::execute):

        Changed op_call and op_construct to implement the new calling convention:
        (JSC::Machine::privateExecute):

        Tweaked to account for the new register layout:
        (JSC::Machine::retrieveArguments):
        (JSC::Machine::retrieveCaller):
        (JSC::Machine::retrieveLastCaller):
        (JSC::Machine::callFrame):
        (JSC::Machine::getArgumentsData):

        Changed CTI call helpers to implement the new calling convention:
        (JSC::Machine::cti_op_call_JSFunction):
        (JSC::Machine::cti_op_call_NotJSFunction):
        (JSC::Machine::cti_op_ret_activation):
        (JSC::Machine::cti_op_ret_profiler):
        (JSC::Machine::cti_op_construct_JSConstruct):
        (JSC::Machine::cti_op_construct_NotJSConstruct):
        (JSC::Machine::cti_op_call_eval):

        * VM/Machine.h:

        * VM/Opcode.h:
        
        Renamed op_initialise_locals to op_init, because this opcode
        doesn't initialize all locals, and it doesn't initialize only locals.
        Also, to spite Oliver.
        
        * VM/RegisterFile.h:
        
        New call frame enumeration values:
        (JSC::RegisterFile::):

        Simplified the calculation of whether a RegisterID is a temporary,
        since we can no longer assume that all positive non-constant registers
        are temporaries:
        * VM/RegisterID.h:
        (JSC::RegisterID::RegisterID):
        (JSC::RegisterID::setTemporary):
        (JSC::RegisterID::isTemporary):

        Renamed firstArgumentIndex to firstParameterIndex because the assumption
        that this variable pertained to the actual arguments supplied by the
        caller caused me to write some buggy code:
        * kjs/Arguments.cpp:
        (JSC::ArgumentsData::ArgumentsData):
        (JSC::Arguments::Arguments):
        (JSC::Arguments::fillArgList):
        (JSC::Arguments::getOwnPropertySlot):
        (JSC::Arguments::put):

        Updated for new call frame layout:
        * kjs/DebuggerCallFrame.cpp:
        (JSC::DebuggerCallFrame::functionName):
        (JSC::DebuggerCallFrame::type):
        * kjs/DebuggerCallFrame.h:

        Changed the activation object to account for the fact that a call frame
        header now sits between parameters and local variables. This change
        requires all variable objects to do their own marking, since they
        now use their register storage differently:
        * kjs/JSActivation.cpp:
        (JSC::JSActivation::mark):
        (JSC::JSActivation::copyRegisters):
        (JSC::JSActivation::createArgumentsObject):
        * kjs/JSActivation.h:

        Updated global object to use the new interfaces required by the change
        to JSActivation above:
        * kjs/JSGlobalObject.cpp:
        (JSC::JSGlobalObject::reset):
        (JSC::JSGlobalObject::mark):
        (JSC::JSGlobalObject::copyGlobalsFrom):
        (JSC::JSGlobalObject::copyGlobalsTo):
        * kjs/JSGlobalObject.h:
        (JSC::JSGlobalObject::addStaticGlobals):

        Updated static scope object to use the new interfaces required by the 
        change to JSActivation above:
        * kjs/JSStaticScopeObject.cpp:
        (JSC::JSStaticScopeObject::mark):
        (JSC::JSStaticScopeObject::~JSStaticScopeObject):
        * kjs/JSStaticScopeObject.h:
        (JSC::JSStaticScopeObject::JSStaticScopeObject):
        (JSC::JSStaticScopeObject::d):

        Updated variable object to use the new interfaces required by the 
        change to JSActivation above:
        * kjs/JSVariableObject.cpp:
        (JSC::JSVariableObject::copyRegisterArray):
        (JSC::JSVariableObject::setRegisters):
        * kjs/JSVariableObject.h:

        Changed the bit twiddling in symbol table not to assume that all indices
        are negative, since they can be positive now:
        * kjs/SymbolTable.h:
        (JSC::SymbolTableEntry::SymbolTableEntry):
        (JSC::SymbolTableEntry::isNull):
        (JSC::SymbolTableEntry::getIndex):
        (JSC::SymbolTableEntry::getAttributes):
        (JSC::SymbolTableEntry::setAttributes):
        (JSC::SymbolTableEntry::isReadOnly):
        (JSC::SymbolTableEntry::pack):
        (JSC::SymbolTableEntry::isValidIndex):

        Changed call and construct nodes to ref their functions and/or bases,
        so that emitCall/emitConstruct doesn't overwrite them with parameters.
        Also, updated for rename to registerFor:
        * kjs/nodes.cpp:
        (JSC::ResolveNode::emitCode):
        (JSC::NewExprNode::emitCode):
        (JSC::EvalFunctionCallNode::emitCode):
        (JSC::FunctionCallValueNode::emitCode):
        (JSC::FunctionCallResolveNode::emitCode):
        (JSC::FunctionCallBracketNode::emitCode):
        (JSC::FunctionCallDotNode::emitCode):
        (JSC::PostfixResolveNode::emitCode):
        (JSC::DeleteResolveNode::emitCode):
        (JSC::TypeOfResolveNode::emitCode):
        (JSC::PrefixResolveNode::emitCode):
        (JSC::ReadModifyResolveNode::emitCode):
        (JSC::AssignResolveNode::emitCode):
        (JSC::ConstDeclNode::emitCodeSingle):
        (JSC::ForInNode::emitCode):

        Added abstraction for getting exception info out of a call through a
        register:
        * masm/X86Assembler.h:
        (JSC::X86Assembler::emitCall):
        
        Removed duplicate #if:
        * wtf/Platform.h:

2008-09-23  Kevin McCullough  <kmccullough@apple.com>

        Reviewed by Darin.

        Bug 21030: The JS debugger breaks on the do of a do-while not the while
        (where the conditional statement is)
        https://bugs.webkit.org/show_bug.cgi?id=21030
        Now the statementListEmitCode detects if a do-while node is being
        emited and emits the debug hook on the last line instead of the first.

        This change had no effect on sunspider.

        * kjs/nodes.cpp:
        (JSC::statementListEmitCode):
        * kjs/nodes.h:
        (JSC::StatementNode::isDoWhile):
        (JSC::DoWhileNode::isDoWhile):

2008-09-23  Maciej Stachowiak  <mjs@apple.com>

        Reviewed by Camron Zwarich.

        - inline the fast case of instanceof
        https://bugs.webkit.org/show_bug.cgi?id=20818

        ~2% speedup on EarleyBoyer test.
        
        * VM/CTI.cpp:
        (JSC::CTI::privateCompileMainPass):
        (JSC::CTI::privateCompileSlowCases):
        * VM/Machine.cpp:
        (JSC::Machine::cti_op_instanceof):

2008-09-23  Maciej Stachowiak  <mjs@apple.com>

        Reviewed by Cameron Zwarich.
        
        - add forgotten slow case logic for !==

        * VM/CTI.cpp:
        (JSC::CTI::privateCompileSlowCases):

2008-09-23  Maciej Stachowiak  <mjs@apple.com>

        Reviewed by Cameron Zwarich.

        - inline the fast cases of !==, same as for ===
        
        2.9% speedup on EarleyBoyer benchmark

        * VM/CTI.cpp:
        (JSC::CTI::compileOpStrictEq): Factored stricteq codegen into this function,
        and parameterized so it can do the reverse version as well.
        (JSC::CTI::privateCompileMainPass): Use the above for stricteq and nstricteq.
        * VM/CTI.h:
        (JSC::CTI::): Declare above stuff.
        * VM/Machine.cpp:
        (JSC::Machine::cti_op_nstricteq): Removed fast cases, now handled inline.

2008-09-23  Cameron Zwarich  <cwzwarich@uwaterloo.ca>

        Reviewed by Oliver Hunt.

        Bug 20989: Aguments constructor should put 'callee' and 'length' properties in a more efficient way
        <https://bugs.webkit.org/show_bug.cgi?id=20989>

        Make special cases for the 'callee' and 'length' properties in the
        Arguments object.

        This is somewhere between a 7.8% speedup and a 10% speedup on the V8
        Raytrace benchmark, depending on whether it is run alone or with the
        other V8 benchmarks.

        * kjs/Arguments.cpp:
        (JSC::ArgumentsData::ArgumentsData):
        (JSC::Arguments::Arguments):
        (JSC::Arguments::mark):
        (JSC::Arguments::getOwnPropertySlot):
        (JSC::Arguments::put):
        (JSC::Arguments::deleteProperty):

2008-09-23  Maciej Stachowiak  <mjs@apple.com>

        Reviewed by Darin.

        - speed up instanceof some more
        https://bugs.webkit.org/show_bug.cgi?id=20818
        
        ~2% speedup on EarleyBoyer

        The idea here is to record in the StructureID whether the class
        needs a special hasInstance or if it can use the normal logic from
        JSObject. 
        
        Based on this I inlined the real work directly into
        cti_op_instanceof and put the fastest checks up front and the
        error handling at the end (so it should be fairly straightforward
        to split off the beginning to be inlined if desired).

        I only did this for CTI, not the bytecode interpreter.
        
        * API/JSCallbackObject.h:
        (JSC::JSCallbackObject::createStructureID):
        * ChangeLog:
        * VM/Machine.cpp:
        (JSC::Machine::cti_op_instanceof):
        * kjs/JSImmediate.h:
        (JSC::JSImmediate::isAnyImmediate):
        * kjs/TypeInfo.h:
        (JSC::TypeInfo::overridesHasInstance):
        (JSC::TypeInfo::flags):

2008-09-22  Darin Adler  <darin@apple.com>

        Reviewed by Sam Weinig.

        - https://bugs.webkit.org/show_bug.cgi?id=21019
          make FunctionBodyNode::ref/deref fast

        Speeds up v8-raytrace by 7.2%.

        * kjs/nodes.cpp:
        (JSC::FunctionBodyNode::FunctionBodyNode): Initialize m_refCount to 0.
        * kjs/nodes.h:
        (JSC::FunctionBodyNode::ref): Call base class ref once, and thereafter use
        m_refCount.
        (JSC::FunctionBodyNode::deref): Ditto, but the deref side.

2008-09-22  Darin Adler  <darin@apple.com>

        Pointed out by Sam Weinig.

        * kjs/Arguments.cpp:
        (JSC::Arguments::fillArgList): Fix bad copy and paste. Oops!

2008-09-22  Darin Adler  <darin@apple.com>

        Reviewed by Cameron Zwarich.

        - https://bugs.webkit.org/show_bug.cgi?id=20983
          ArgumentsData should have some room to allocate some extra arguments inline

        Speeds up v8-raytrace by 5%.

        * kjs/Arguments.cpp:
        (JSC::ArgumentsData::ArgumentsData): Use a fixed buffer if there are 4 or fewer
        extra arguments.
        (JSC::Arguments::Arguments): Use a fixed buffer if there are 4 or fewer
        extra arguments.
        (JSC::Arguments::~Arguments): Delete the buffer if necessary.
        (JSC::Arguments::mark): Update since extraArguments are now Register.
        (JSC::Arguments::fillArgList): Added special case for the only case that's
        actually used in the practice, when there are no parameters. There are some
        other special cases in there too, but that's the only one that matters.
        (JSC::Arguments::getOwnPropertySlot): Updated to use setValueSlot since there's
        no operation to get you at the JSValue* inside a Register as a "slot".

2008-09-22  Sam Weinig  <sam@webkit.org>

        Reviewed by Maciej Stachowiak.

        Patch for https://bugs.webkit.org/show_bug.cgi?id=21014
        Speed up for..in by using StructureID to avoid calls to hasProperty

        Speeds up fasta by 8%.

        * VM/JSPropertyNameIterator.cpp:
        (JSC::JSPropertyNameIterator::invalidate):
        * VM/JSPropertyNameIterator.h:
        (JSC::JSPropertyNameIterator::next):
        * kjs/PropertyNameArray.h:
        (JSC::PropertyNameArrayData::begin):
        (JSC::PropertyNameArrayData::end):
        (JSC::PropertyNameArrayData::setCachedStructureID):
        (JSC::PropertyNameArrayData::cachedStructureID):
        * kjs/StructureID.cpp:
        (JSC::StructureID::getEnumerablePropertyNames):
        (JSC::structureIDChainsAreEqual):
        * kjs/StructureID.h:

2008-09-22  Kelvin Sherlock  <ksherlock@gmail.com>

        Updated and tweaked by Sam Weinig.

        Reviewed by Geoffrey Garen.

        Bug 20020: Proposed enhancement to JavaScriptCore API
        <https://bugs.webkit.org/show_bug.cgi?id=20020>

        Add JSObjectMakeArray, JSObjectMakeDate, JSObjectMakeError, and JSObjectMakeRegExp
        functions to create JavaScript Array, Date, Error, and RegExp objects, respectively.

        * API/JSObjectRef.cpp: The functions
        * API/JSObjectRef.h: Function prototype and documentation
        * JavaScriptCore.exp: Added functions to exported function list
        * API/tests/testapi.c: Added basic functionality tests.

        * kjs/DateConstructor.cpp:
        Replaced static JSObject* constructDate(ExecState* exec, JSObject*, const ArgList& args)
        with JSObject* constructDate(ExecState* exec, const ArgList& args).
        Added static JSObject* constructWithDateConstructor(ExecState* exec, JSObject*, const ArgList& args) function

        * kjs/DateConstructor.h:
        added prototype for JSObject* constructDate(ExecState* exec, const ArgList& args)

        * kjs/ErrorConstructor.cpp:
        removed static qualifier from ErrorInstance* constructError(ExecState* exec, const ArgList& args)

        * kjs/ErrorConstructor.h:
        added prototype for ErrorInstance* constructError(ExecState* exec, const ArgList& args)

        * kjs/RegExpConstructor.cpp:
        removed static qualifier from JSObject* constructRegExp(ExecState* exec, const ArgList& args)

        * kjs/RegExpConstructor.h:
        added prototype for JSObject* constructRegExp(ExecState* exec, const ArgList& args)

2008-09-22  Matt Lilek  <webkit@mattlilek.com>

        Not reviewed, Windows build fix.

        * kjs/Arguments.cpp:
        * kjs/FunctionPrototype.cpp:

2008-09-22  Sam Weinig  <sam@webkit.org>

        Reviewed by Darin Adler.

        Patch for https://bugs.webkit.org/show_bug.cgi?id=20982
        Speed up the apply method of functions by special-casing array and 'arguments' objects

        1% speedup on v8-raytrace.

        Test: fast/js/function-apply.html

        * kjs/Arguments.cpp:
        (JSC::Arguments::fillArgList):
        * kjs/Arguments.h:
        * kjs/FunctionPrototype.cpp:
        (JSC::functionProtoFuncApply):
        * kjs/JSArray.cpp:
        (JSC::JSArray::fillArgList):
        * kjs/JSArray.h:

2008-09-22  Darin Adler  <darin@apple.com>

        Reviewed by Sam Weinig.

        - https://bugs.webkit.org/show_bug.cgi?id=20993
          Array.push/pop need optimized cases for JSArray

        3% or so speedup on DeltaBlue benchmark.

        * kjs/ArrayPrototype.cpp:
        (JSC::arrayProtoFuncPop): Call JSArray::pop when appropriate.
        (JSC::arrayProtoFuncPush): Call JSArray::push when appropriate.

        * kjs/JSArray.cpp:
        (JSC::JSArray::putSlowCase): Set m_fastAccessCutoff when appropriate, getting
        us into the fast code path.
        (JSC::JSArray::pop): Added.
        (JSC::JSArray::push): Added.
        * kjs/JSArray.h: Added push and pop.

        * kjs/operations.cpp:
        (JSC::throwOutOfMemoryError): Don't inline this. Helps us avoid PIC branches.

2008-09-22  Maciej Stachowiak  <mjs@apple.com>

        Reviewed by Cameron Zwarich.
        
        - speed up instanceof operator by replacing implementsHasInstance method with a TypeInfo flag

        Partial work towards <https://bugs.webkit.org/show_bug.cgi?id=20818>
        
        2.2% speedup on EarleyBoyer benchmark.

        * API/JSCallbackConstructor.cpp:
        * API/JSCallbackConstructor.h:
        (JSC::JSCallbackConstructor::createStructureID):
        * API/JSCallbackFunction.cpp:
        * API/JSCallbackFunction.h:
        (JSC::JSCallbackFunction::createStructureID):
        * API/JSCallbackObject.h:
        (JSC::JSCallbackObject::createStructureID):
        * API/JSCallbackObjectFunctions.h:
        (JSC::::hasInstance):
        * API/JSValueRef.cpp:
        (JSValueIsInstanceOfConstructor):
        * JavaScriptCore.exp:
        * VM/Machine.cpp:
        (JSC::Machine::privateExecute):
        (JSC::Machine::cti_op_instanceof):
        * kjs/InternalFunction.cpp:
        * kjs/InternalFunction.h:
        (JSC::InternalFunction::createStructureID):
        * kjs/JSObject.cpp:
        * kjs/JSObject.h:
        * kjs/TypeInfo.h:
        (JSC::TypeInfo::implementsHasInstance):

2008-09-22  Maciej Stachowiak  <mjs@apple.com>

        Reviewed by Dave Hyatt.
        
        Based on initial work by Darin Adler.
        
        - replace masqueradesAsUndefined virtual method with a flag in TypeInfo
        - use this to JIT inline code for eq_null and neq_null
        https://bugs.webkit.org/show_bug.cgi?id=20823

        0.5% speedup on SunSpider
        ~4% speedup on Richards benchmark
        
        * VM/CTI.cpp:
        (JSC::CTI::privateCompileMainPass):
        * VM/Machine.cpp:
        (JSC::jsTypeStringForValue):
        (JSC::jsIsObjectType):
        (JSC::Machine::privateExecute):
        (JSC::Machine::cti_op_is_undefined):
        * VM/Machine.h:
        * kjs/JSCell.h:
        * kjs/JSValue.h:
        * kjs/StringObjectThatMasqueradesAsUndefined.h:
        (JSC::StringObjectThatMasqueradesAsUndefined::create):
        (JSC::StringObjectThatMasqueradesAsUndefined::createStructureID):
        * kjs/StructureID.h:
        (JSC::StructureID::mutableTypeInfo):
        * kjs/TypeInfo.h:
        (JSC::TypeInfo::TypeInfo):
        (JSC::TypeInfo::masqueradesAsUndefined):
        * kjs/operations.cpp:
        (JSC::equal):
        * masm/X86Assembler.h:
        (JSC::X86Assembler::):
        (JSC::X86Assembler::setne_r):
        (JSC::X86Assembler::setnz_r):
        (JSC::X86Assembler::testl_i32m):

2008-09-22  Tor Arne Vestbø  <tavestbo@trolltech.com>

        Reviewed by Simon.

        Initialize QCoreApplication in kjs binary/Shell.cpp
        
        This allows us to use QCoreApplication::instance() to
        get the main thread in ThreadingQt.cpp

        * kjs/Shell.cpp:
        (main):
        * wtf/ThreadingQt.cpp:
        (WTF::initializeThreading):

2008-09-21  Darin Adler  <darin@apple.com>

        - blind attempt to fix non-all-in-one builds

        * kjs/JSGlobalObject.cpp: Added includes of Arguments.h and RegExpObject.h.

2008-09-21  Darin Adler  <darin@apple.com>

        - fix debug build

        * kjs/StructureID.cpp:
        (JSC::StructureID::addPropertyTransition): Use typeInfo().type() instead of m_type.
        (JSC::StructureID::createCachedPrototypeChain): Ditto.

2008-09-21  Maciej Stachowiak  <mjs@apple.com>

        Reviewed by Darin Adler.
        
        - introduce a TypeInfo class, for holding per-type (in the C++ class sense) date in StructureID
        https://bugs.webkit.org/show_bug.cgi?id=20981

        * JavaScriptCore.exp:
        * JavaScriptCore.xcodeproj/project.pbxproj:
        * VM/CTI.cpp:
        (JSC::CTI::privateCompileMainPass):
        (JSC::CTI::privateCompilePutByIdTransition):
        * VM/Machine.cpp:
        (JSC::jsIsObjectType):
        (JSC::Machine::Machine):
        * kjs/AllInOneFile.cpp:
        * kjs/JSCell.h:
        (JSC::JSCell::isObject):
        (JSC::JSCell::isString):
        * kjs/JSGlobalData.cpp:
        (JSC::JSGlobalData::JSGlobalData):
        * kjs/JSGlobalObject.cpp:
        (JSC::JSGlobalObject::reset):
        * kjs/JSGlobalObject.h:
        (JSC::StructureID::prototypeForLookup):
        * kjs/JSNumberCell.h:
        (JSC::JSNumberCell::createStructureID):
        * kjs/JSObject.cpp:
        (JSC::JSObject::createInheritorID):
        * kjs/JSObject.h:
        (JSC::JSObject::createStructureID):
        * kjs/JSString.h:
        (JSC::JSString::createStructureID):
        * kjs/NativeErrorConstructor.cpp:
        (JSC::NativeErrorConstructor::NativeErrorConstructor):
        * kjs/RegExpConstructor.cpp:
        * kjs/RegExpMatchesArray.h: Added.
        (JSC::RegExpMatchesArray::getOwnPropertySlot):
        (JSC::RegExpMatchesArray::put):
        (JSC::RegExpMatchesArray::deleteProperty):
        (JSC::RegExpMatchesArray::getPropertyNames):
        * kjs/StructureID.cpp:
        (JSC::StructureID::StructureID):
        (JSC::StructureID::addPropertyTransition):
        (JSC::StructureID::toDictionaryTransition):
        (JSC::StructureID::changePrototypeTransition):
        (JSC::StructureID::getterSetterTransition):
        * kjs/StructureID.h:
        (JSC::StructureID::create):
        (JSC::StructureID::typeInfo):
        * kjs/TypeInfo.h: Added.
        (JSC::TypeInfo::TypeInfo):
        (JSC::TypeInfo::type):

2008-09-21  Darin Adler  <darin@apple.com>

        Reviewed by Cameron Zwarich.

        - fix crash logging into Gmail due to recent Arguments change

        * kjs/Arguments.cpp:
        (JSC::Arguments::Arguments): Fix window where mark() function could
        see d->extraArguments with uninitialized contents.
        (JSC::Arguments::mark): Check d->extraArguments for 0 to handle two
        cases: 1) Inside the constructor before it's initialized.
        2) numArguments <= numParameters.

2008-09-21  Darin Adler  <darin@apple.com>

        - fix loose end from the "duplicate constant values" patch

        * VM/CodeGenerator.cpp:
        (JSC::CodeGenerator::emitLoad): Add a special case for values the
        hash table can't handle.

2008-09-21  Mark Rowe  <mrowe@apple.com>

        Fix the non-AllInOneFile build.

        * kjs/Arguments.cpp: Add missing #include.

2008-09-21  Darin Adler  <darin@apple.com>

        Reviewed by Cameron Zwarich and Mark Rowe.

        - fix test failure caused by my recent IndexToNameMap patch

        * kjs/Arguments.cpp:
        (JSC::Arguments::deleteProperty): Added the accidentally-omitted
        check of the boolean result from toArrayIndex.

2008-09-21  Darin Adler  <darin@apple.com>

        Reviewed by Maciej Stachowiak.

        - https://bugs.webkit.org/show_bug.cgi?id=20975
          inline immediate-number case of ==

        * VM/CTI.h: Renamed emitJumpSlowCaseIfNotImm to
        emitJumpSlowCaseIfNotImmNum, since the old name was incorrect.

        * VM/CTI.cpp: Updated for new name.
        (JSC::CTI::privateCompileMainPass): Added op_eq.
        (JSC::CTI::privateCompileSlowCases): Added op_eq.

        * VM/Machine.cpp:
        (JSC::Machine::cti_op_eq): Removed fast case, since it's now
        compiled.

2008-09-21  Peter Gal  <galpter@inf.u-szeged.hu>

        Reviewed by Tim Hatcher and Eric Seidel.

        Fix the QT/Linux JavaScriptCore segmentation fault.
        https://bugs.webkit.org/show_bug.cgi?id=20914

        * wtf/ThreadingQt.cpp:
        (WTF::initializeThreading): Use currentThread() if
        platform is not a MAC (like in pre 36541 revisions)

2008-09-21  Darin Adler  <darin@apple.com>

        Reviewed by Sam Weinig.

        * kjs/debugger.h: Removed some unneeded includes and declarations.

2008-09-21  Darin Adler  <darin@apple.com>

        Reviewed by Sam Weinig.

        - https://bugs.webkit.org/show_bug.cgi?id=20972
          speed up Arguments further by eliminating the IndexToNameMap

        No change on SunSpider. 1.29x as fast on V8 Raytrace.

        * kjs/Arguments.cpp: Moved ArgumentsData in here. Eliminated the
        indexToNameMap and hadDeletes data members. Changed extraArguments into
        an OwnArrayPtr and added deletedArguments, another OwnArrayPtr.
        Replaced numExtraArguments with numParameters, since that's what's
        used more directly in hot code paths.
        (JSC::Arguments::Arguments): Pass in argument count instead of ArgList.
        Initialize ArgumentsData the new way.
        (JSC::Arguments::mark): Updated.
        (JSC::Arguments::getOwnPropertySlot): Overload for the integer form so
        we don't have to convert integers to identifiers just to get an argument.
        Integrated the deleted case with the fast case.
        (JSC::Arguments::put): Ditto.
        (JSC::Arguments::deleteProperty): Ditto.

        * kjs/Arguments.h: Minimized includes. Made everything private. Added
        overloads for the integral property name case. Eliminated mappedIndexSetter.
        Moved ArgumentsData into the .cpp file.

        * kjs/IndexToNameMap.cpp: Emptied out and prepared for deletion.
        * kjs/IndexToNameMap.h: Ditto.

        * kjs/JSActivation.cpp:
        (JSC::JSActivation::createArgumentsObject): Elminated ArgList.

        * GNUmakefile.am:
        * JavaScriptCore.pri:
        * JavaScriptCore.vcproj/JavaScriptCore/JavaScriptCore.vcproj:
        * JavaScriptCore.xcodeproj/project.pbxproj:
        * JavaScriptCoreSources.bkl:
        * kjs/AllInOneFile.cpp:
        Removed IndexToNameMap.

2008-09-21  Darin Adler  <darin@apple.com>

        * VM/CodeGenerator.cpp:
        (JSC::CodeGenerator::emitLoad): One more tweak: Wrote this in a slightly
        clearer style.

2008-09-21  Judit Jasz  <jasy@inf.u-szeged.hu>

        Reviewed and tweaked by Darin Adler.

        - https://bugs.webkit.org/show_bug.cgi?id=20645
          Elminate duplicate constant values in CodeBlocks.

        Seems to be a wash on SunSpider.

        * VM/CodeGenerator.cpp:
        (JSC::CodeGenerator::emitLoad): Use m_numberMap and m_stringMap to guarantee
        we emit the same JSValue* for identical numbers and strings.
        * VM/CodeGenerator.h: Added overload of emitLoad for const Identifier&.
        Add NumberMap and IdentifierStringMap types and m_numberMap and m_stringMap.
        * kjs/nodes.cpp:
        (JSC::StringNode::emitCode): Call the new emitLoad and let it do the
        JSString creation.

2008-09-21  Paul Pedriana  <webkit@pedriana.com>

        Reviewed and tweaked by Darin Adler.

        - https://bugs.webkit.org/show_bug.cgi?id=16925
          Fixed lack of Vector buffer alignment for both GCC and MSVC.
          Since there's no portable way to do this, for now we don't support
          other compilers.

        * wtf/Vector.h: Added WTF_ALIGH_ON, WTF_ALIGNED, AlignedBufferChar, and AlignedBuffer.
        Use AlignedBuffer insteadof an array of char in VectorBuffer.

2008-09-21  Gabor Loki  <loki@inf.u-szeged.hu>

        Reviewed by Darin Adler.

        - https://bugs.webkit.org/show_bug.cgi?id=19408
          Add lightweight constant folding to the parser for *, /, + (only for numbers), <<, >>, ~ operators.

        1.008x as fast on SunSpider.

        * kjs/grammar.y:
        (makeNegateNode): Fold if expression is a number > 0.
        (makeBitwiseNotNode): Fold if expression is a number.
        (makeMultNode): Fold if expressions are both numbers.
        (makeDivNode): Fold if expressions are both numbers.
        (makeAddNode): Fold if expressions are both numbers.
        (makeLeftShiftNode): Fold if expressions are both numbers.
        (makeRightShiftNode): Fold if expressions are both numbers.

2008-09-21  Maciej Stachowiak  <mjs@apple.com>

        Reviewed by Oliver.
        
        - speed up === operator by generating inline machine code for the fast paths
        https://bugs.webkit.org/show_bug.cgi?id=20820

        * VM/CTI.cpp:
        (JSC::CTI::emitJumpSlowCaseIfNotImmediateNumber):
        (JSC::CTI::emitJumpSlowCaseIfNotImmediateNumbers):
        (JSC::CTI::emitJumpSlowCaseIfNotImmediates):
        (JSC::CTI::emitTagAsBoolImmediate):
        (JSC::CTI::privateCompileMainPass):
        (JSC::CTI::privateCompileSlowCases):
        * VM/CTI.h:
        * VM/Machine.cpp:
        (JSC::Machine::cti_op_stricteq):
        * masm/X86Assembler.h:
        (JSC::X86Assembler::):
        (JSC::X86Assembler::sete_r):
        (JSC::X86Assembler::setz_r):
        (JSC::X86Assembler::movzbl_rr):
        (JSC::X86Assembler::emitUnlinkedJnz):

2008-09-21  Cameron Zwarich  <cwzwarich@uwaterloo.ca>

        Reviewed by Maciej Stachowiak.

        Free memory allocated for extra arguments in the destructor of the
        Arguments object.

        * kjs/Arguments.cpp:
        (JSC::Arguments::~Arguments):
        * kjs/Arguments.h:

2008-09-21  Cameron Zwarich  <cwzwarich@uwaterloo.ca>

        Reviewed by Maciej Stachowiak.

        Bug 20815: 'arguments' object creation is non-optimal
        <https://bugs.webkit.org/show_bug.cgi?id=20815>

        Fix our inefficient way of creating the arguments object by only
        creating named properties for each of the arguments after a use of the
        'delete' statement. This patch also speeds up access to the 'arguments'
        object slightly, but it still does not use the array fast path for
        indexed access that exists for many opcodes.

        This is about a 20% improvement on the V8 Raytrace benchmark, and a 1.5%
        improvement on the Earley-Boyer benchmark, which gives a 4% improvement
        overall.

        * kjs/Arguments.cpp:
        (JSC::Arguments::Arguments):
        (JSC::Arguments::mark):
        (JSC::Arguments::getOwnPropertySlot):
        (JSC::Arguments::put):
        (JSC::Arguments::deleteProperty):
        * kjs/Arguments.h:
        (JSC::Arguments::ArgumentsData::ArgumentsData):
        * kjs/IndexToNameMap.h:
        (JSC::IndexToNameMap::size):
        * kjs/JSActivation.cpp:
        (JSC::JSActivation::createArgumentsObject):
        * kjs/JSActivation.h:
        (JSC::JSActivation::uncheckedSymbolTableGet):
        (JSC::JSActivation::uncheckedSymbolTableGetValue):
        (JSC::JSActivation::uncheckedSymbolTablePut):
        * kjs/JSFunction.h:
        (JSC::JSFunction::numParameters):

2008-09-20  Darin Adler  <darin@apple.com>

        Reviewed by Mark Rowe.

        - fix crash seen on buildbot

        * kjs/JSGlobalObject.cpp:
        (JSC::JSGlobalObject::mark): Add back mark of arrayPrototype,
        deleted by accident in my recent check-in.

2008-09-20  Maciej Stachowiak  <mjs@apple.com>

        Not reviewed, build fix.
        
        - speculative fix for non-AllInOne builds

        * kjs/operations.h:

2008-09-20  Maciej Stachowiak  <mjs@apple.com>

        Reviewed by Darin Adler.
        
        - assorted optimizations to === and !== operators
        (work towards <https://bugs.webkit.org/show_bug.cgi?id=20820>)
        
        2.5% speedup on earley-boyer test

        * VM/Machine.cpp:
        (JSC::Machine::cti_op_stricteq): Use inline version of
        strictEqualSlowCase; remove unneeded exception check.
        (JSC::Machine::cti_op_nstricteq): ditto
        * kjs/operations.cpp:
        (JSC::strictEqual): Use strictEqualSlowCaseInline
        (JSC::strictEqualSlowCase): ditto
        * kjs/operations.h:
        (JSC::strictEqualSlowCaseInline): Version of strictEqualSlowCase that can be inlined,
        since the extra function call indirection is a lose for CTI.

2008-09-20  Darin Adler  <darin@apple.com>

        Reviewed by Maciej Stachowiak.

        - finish https://bugs.webkit.org/show_bug.cgi?id=20858
          make each distinct C++ class get a distinct JSC::Structure

        This also includes some optimizations that make the change an overall
        small speedup. Without those it was a bit of a slowdown.

        * API/JSCallbackConstructor.cpp:
        (JSC::JSCallbackConstructor::JSCallbackConstructor): Take a structure.
        * API/JSCallbackConstructor.h: Ditto.
        * API/JSCallbackFunction.cpp:
        (JSC::JSCallbackFunction::JSCallbackFunction): Pass a structure.
        * API/JSCallbackObject.h: Take a structure.
        * API/JSCallbackObjectFunctions.h:
        (JSC::JSCallbackObject::JSCallbackObject): Ditto.

        * API/JSClassRef.cpp:
        (OpaqueJSClass::prototype): Pass in a structure. Call setPrototype
        if there's a custom prototype involved.
        * API/JSObjectRef.cpp:
        (JSObjectMake): Ditto.
        (JSObjectMakeConstructor): Pass in a structure.

        * JavaScriptCore.exp: Updated.

        * VM/Machine.cpp:
        (JSC::jsLess): Added a special case for when both arguments are strings.
        This avoids converting both strings to with UString::toDouble.
        (JSC::jsLessEq): Ditto.
        (JSC::Machine::privateExecute): Pass in a structure.
        (JSC::Machine::cti_op_construct_JSConstruct): Ditto.
        (JSC::Machine::cti_op_new_regexp): Ditto.
        (JSC::Machine::cti_op_is_string): Ditto.
        * VM/Machine.h: Made isJSString public so it can be used in the CTI.

        * kjs/Arguments.cpp:
        (JSC::Arguments::Arguments): Pass in a structure.

        * kjs/JSCell.h: Mark constructor explicit.

        * kjs/JSGlobalObject.cpp:
        (JSC::markIfNeeded): Added an overload for marking structures.
        (JSC::JSGlobalObject::reset): Eliminate code to set data members to
        zero. We now do that in the constructor, and we no longer use this
        anywhere except in the constructor. Added code to create structures.
        Pass structures rather than prototypes when creating objects.
        (JSC::JSGlobalObject::mark): Mark the structures.

        * kjs/JSGlobalObject.h: Removed unneeded class declarations.
        Added initializers for raw pointers in JSGlobalObjectData so
        everything starts with a 0. Added structure data and accessor
        functions.

        * kjs/JSImmediate.cpp:
        (JSC::JSImmediate::nonInlineNaN): Added.
        * kjs/JSImmediate.h:
        (JSC::JSImmediate::toDouble): Rewrote to avoid PIC branches.

        * kjs/JSNumberCell.cpp:
        (JSC::jsNumberCell): Made non-inline to avoid PIC branches
        in functions that call this one.
        (JSC::jsNaN): Ditto.
        * kjs/JSNumberCell.h: Ditto.

        * kjs/JSObject.h: Removed constructor that takes a prototype.
        All callers now pass structures.

        * kjs/ArrayConstructor.cpp:
        (JSC::ArrayConstructor::ArrayConstructor):
        (JSC::constructArrayWithSizeQuirk):
        * kjs/ArrayConstructor.h:
        * kjs/ArrayPrototype.cpp:
        (JSC::ArrayPrototype::ArrayPrototype):
        * kjs/ArrayPrototype.h:
        * kjs/BooleanConstructor.cpp:
        (JSC::BooleanConstructor::BooleanConstructor):
        (JSC::constructBoolean):
        (JSC::constructBooleanFromImmediateBoolean):
        * kjs/BooleanConstructor.h:
        * kjs/BooleanObject.cpp:
        (JSC::BooleanObject::BooleanObject):
        * kjs/BooleanObject.h:
        * kjs/BooleanPrototype.cpp:
        (JSC::BooleanPrototype::BooleanPrototype):
        * kjs/BooleanPrototype.h:
        * kjs/DateConstructor.cpp:
        (JSC::DateConstructor::DateConstructor):
        (JSC::constructDate):
        * kjs/DateConstructor.h:
        * kjs/DateInstance.cpp:
        (JSC::DateInstance::DateInstance):
        * kjs/DateInstance.h:
        * kjs/DatePrototype.cpp:
        (JSC::DatePrototype::DatePrototype):
        * kjs/DatePrototype.h:
        * kjs/ErrorConstructor.cpp:
        (JSC::ErrorConstructor::ErrorConstructor):
        (JSC::constructError):
        * kjs/ErrorConstructor.h:
        * kjs/ErrorInstance.cpp:
        (JSC::ErrorInstance::ErrorInstance):
        * kjs/ErrorInstance.h:
        * kjs/ErrorPrototype.cpp:
        (JSC::ErrorPrototype::ErrorPrototype):
        * kjs/ErrorPrototype.h:
        * kjs/FunctionConstructor.cpp:
        (JSC::FunctionConstructor::FunctionConstructor):
        * kjs/FunctionConstructor.h:
        * kjs/FunctionPrototype.cpp:
        (JSC::FunctionPrototype::FunctionPrototype):
        (JSC::FunctionPrototype::addFunctionProperties):
        * kjs/FunctionPrototype.h:
        * kjs/GlobalEvalFunction.cpp:
        (JSC::GlobalEvalFunction::GlobalEvalFunction):
        * kjs/GlobalEvalFunction.h:
        * kjs/InternalFunction.cpp:
        (JSC::InternalFunction::InternalFunction):
        * kjs/InternalFunction.h:
        (JSC::InternalFunction::InternalFunction):
        * kjs/JSArray.cpp:
        (JSC::JSArray::JSArray):
        (JSC::constructEmptyArray):
        (JSC::constructArray):
        * kjs/JSArray.h:
        * kjs/JSFunction.cpp:
        (JSC::JSFunction::JSFunction):
        (JSC::JSFunction::construct):
        * kjs/JSObject.cpp:
        (JSC::constructEmptyObject):
        * kjs/JSString.cpp:
        (JSC::StringObject::create):
        * kjs/JSWrapperObject.h:
        * kjs/MathObject.cpp:
        (JSC::MathObject::MathObject):
        * kjs/MathObject.h:
        * kjs/NativeErrorConstructor.cpp:
        (JSC::NativeErrorConstructor::NativeErrorConstructor):
        (JSC::NativeErrorConstructor::construct):
        * kjs/NativeErrorConstructor.h:
        * kjs/NativeErrorPrototype.cpp:
        (JSC::NativeErrorPrototype::NativeErrorPrototype):
        * kjs/NativeErrorPrototype.h:
        * kjs/NumberConstructor.cpp:
        (JSC::NumberConstructor::NumberConstructor):
        (JSC::constructWithNumberConstructor):
        * kjs/NumberConstructor.h:
        * kjs/NumberObject.cpp:
        (JSC::NumberObject::NumberObject):
        (JSC::constructNumber):
        (JSC::constructNumberFromImmediateNumber):
        * kjs/NumberObject.h:
        * kjs/NumberPrototype.cpp:
        (JSC::NumberPrototype::NumberPrototype):
        * kjs/NumberPrototype.h:
        * kjs/ObjectConstructor.cpp:
        (JSC::ObjectConstructor::ObjectConstructor):
        (JSC::constructObject):
        * kjs/ObjectConstructor.h:
        * kjs/ObjectPrototype.cpp:
        (JSC::ObjectPrototype::ObjectPrototype):
        * kjs/ObjectPrototype.h:
        * kjs/PrototypeFunction.cpp:
        (JSC::PrototypeFunction::PrototypeFunction):
        * kjs/PrototypeFunction.h:
        * kjs/RegExpConstructor.cpp:
        (JSC::RegExpConstructor::RegExpConstructor):
        (JSC::RegExpMatchesArray::RegExpMatchesArray):
        (JSC::constructRegExp):
        * kjs/RegExpConstructor.h:
        * kjs/RegExpObject.cpp:
        (JSC::RegExpObject::RegExpObject):
        * kjs/RegExpObject.h:
        * kjs/RegExpPrototype.cpp:
        (JSC::RegExpPrototype::RegExpPrototype):
        * kjs/RegExpPrototype.h:
        * kjs/Shell.cpp:
        (GlobalObject::GlobalObject):
        * kjs/StringConstructor.cpp:
        (JSC::StringConstructor::StringConstructor):
        (JSC::constructWithStringConstructor):
        * kjs/StringConstructor.h:
        * kjs/StringObject.cpp:
        (JSC::StringObject::StringObject):
        * kjs/StringObject.h:
        * kjs/StringObjectThatMasqueradesAsUndefined.h:
        (JSC::StringObjectThatMasqueradesAsUndefined::StringObjectThatMasqueradesAsUndefined):
        * kjs/StringPrototype.cpp:
        (JSC::StringPrototype::StringPrototype):
        * kjs/StringPrototype.h:
        Take and pass structures.

2008-09-19  Alp Toker  <alp@nuanti.com>

        Build fix for the 'gold' linker and recent binutils. New behaviour
        requires that we link to used libraries explicitly.

        * GNUmakefile.am:

2008-09-19  Sam Weinig  <sam@webkit.org>

        Roll r36694 back in.  It did not cause the crash.

        * JavaScriptCore.exp:
        * VM/JSPropertyNameIterator.cpp:
        (JSC::JSPropertyNameIterator::~JSPropertyNameIterator):
        (JSC::JSPropertyNameIterator::invalidate):
        * VM/JSPropertyNameIterator.h:
        (JSC::JSPropertyNameIterator::JSPropertyNameIterator):
        (JSC::JSPropertyNameIterator::create):
        * kjs/JSObject.cpp:
        (JSC::JSObject::getPropertyNames):
        * kjs/PropertyMap.cpp:
        (JSC::PropertyMap::getEnumerablePropertyNames):
        * kjs/PropertyMap.h:
        * kjs/PropertyNameArray.cpp:
        (JSC::PropertyNameArray::add):
        * kjs/PropertyNameArray.h:
        (JSC::PropertyNameArrayData::create):
        (JSC::PropertyNameArrayData::propertyNameVector):
        (JSC::PropertyNameArrayData::setCachedPrototypeChain):
        (JSC::PropertyNameArrayData::cachedPrototypeChain):
        (JSC::PropertyNameArrayData::begin):
        (JSC::PropertyNameArrayData::end):
        (JSC::PropertyNameArrayData::PropertyNameArrayData):
        (JSC::PropertyNameArray::PropertyNameArray):
        (JSC::PropertyNameArray::addKnownUnique):
        (JSC::PropertyNameArray::size):
        (JSC::PropertyNameArray::operator[]):
        (JSC::PropertyNameArray::begin):
        (JSC::PropertyNameArray::end):
        (JSC::PropertyNameArray::setData):
        (JSC::PropertyNameArray::data):
        (JSC::PropertyNameArray::releaseData):
        * kjs/StructureID.cpp:
        (JSC::structureIDChainsAreEqual):
        (JSC::StructureID::getEnumerablePropertyNames):
        (JSC::StructureID::clearEnumerationCache):
        (JSC::StructureID::createCachedPrototypeChain):
        * kjs/StructureID.h:

2008-09-19  Sam Weinig  <sam@webkit.org>

        Roll out r36694.

        * JavaScriptCore.exp:
        * VM/JSPropertyNameIterator.cpp:
        (JSC::JSPropertyNameIterator::~JSPropertyNameIterator):
        (JSC::JSPropertyNameIterator::invalidate):
        * VM/JSPropertyNameIterator.h:
        (JSC::JSPropertyNameIterator::JSPropertyNameIterator):
        (JSC::JSPropertyNameIterator::create):
        * kjs/JSObject.cpp:
        (JSC::JSObject::getPropertyNames):
        * kjs/PropertyMap.cpp:
        (JSC::PropertyMap::getEnumerablePropertyNames):
        * kjs/PropertyMap.h:
        * kjs/PropertyNameArray.cpp:
        (JSC::PropertyNameArray::add):
        * kjs/PropertyNameArray.h:
        (JSC::PropertyNameArray::PropertyNameArray):
        (JSC::PropertyNameArray::addKnownUnique):
        (JSC::PropertyNameArray::begin):
        (JSC::PropertyNameArray::end):
        (JSC::PropertyNameArray::size):
        (JSC::PropertyNameArray::operator[]):
        (JSC::PropertyNameArray::releaseIdentifiers):
        * kjs/StructureID.cpp:
        (JSC::StructureID::getEnumerablePropertyNames):
        * kjs/StructureID.h:
        (JSC::StructureID::clearEnumerationCache):

2008-09-19  Oliver Hunt  <oliver@apple.com>

        Reviewed by Maciej Stachowiak.

        Improve peformance of local variable initialisation.

        Pull local and constant initialisation out of slideRegisterWindowForCall
        and into its own opcode.  This allows the JIT to generate the initialisation
        code for a function directly into the instruction stream and so avoids a few
        branches on function entry.

        Results a 1% progression in SunSpider, particularly in a number of the bitop
        tests where the called functions are very fast. 

        * VM/CTI.cpp:
        (JSC::CTI::emitInitialiseRegister):
        (JSC::CTI::privateCompileMainPass):
        * VM/CTI.h:
        * VM/CodeBlock.cpp:
        (JSC::CodeBlock::dump):
        * VM/CodeGenerator.cpp:
        (JSC::CodeGenerator::CodeGenerator):
        * VM/Machine.cpp:
        (JSC::slideRegisterWindowForCall):
        (JSC::Machine::privateExecute):
        * VM/Opcode.h:

2008-09-19  Sam Weinig  <sam@webkit.org>

        Reviewed by Darin Adler.

        Patch for https://bugs.webkit.org/show_bug.cgi?id=20928
        Speed up JS property enumeration by caching entire PropertyNameArray

        1.3% speedup on Sunspider, 30% on string-fasta.

        * JavaScriptCore.exp:
        * VM/JSPropertyNameIterator.cpp:
        (JSC::JSPropertyNameIterator::~JSPropertyNameIterator):
        (JSC::JSPropertyNameIterator::invalidate):
        * VM/JSPropertyNameIterator.h:
        (JSC::JSPropertyNameIterator::JSPropertyNameIterator):
        (JSC::JSPropertyNameIterator::create):
        * kjs/JSObject.cpp:
        (JSC::JSObject::getPropertyNames):
        * kjs/PropertyMap.cpp:
        (JSC::PropertyMap::getEnumerablePropertyNames):
        * kjs/PropertyMap.h:
        * kjs/PropertyNameArray.cpp:
        (JSC::PropertyNameArray::add):
        * kjs/PropertyNameArray.h:
        (JSC::PropertyNameArrayData::create):
        (JSC::PropertyNameArrayData::propertyNameVector):
        (JSC::PropertyNameArrayData::setCachedPrototypeChain):
        (JSC::PropertyNameArrayData::cachedPrototypeChain):
        (JSC::PropertyNameArrayData::begin):
        (JSC::PropertyNameArrayData::end):
        (JSC::PropertyNameArrayData::PropertyNameArrayData):
        (JSC::PropertyNameArray::PropertyNameArray):
        (JSC::PropertyNameArray::addKnownUnique):
        (JSC::PropertyNameArray::size):
        (JSC::PropertyNameArray::operator[]):
        (JSC::PropertyNameArray::begin):
        (JSC::PropertyNameArray::end):
        (JSC::PropertyNameArray::setData):
        (JSC::PropertyNameArray::data):
        (JSC::PropertyNameArray::releaseData):
        * kjs/ScopeChain.cpp:
        (JSC::ScopeChainNode::print):
        * kjs/StructureID.cpp:
        (JSC::structureIDChainsAreEqual):
        (JSC::StructureID::getEnumerablePropertyNames):
        (JSC::StructureID::clearEnumerationCache):
        (JSC::StructureID::createCachedPrototypeChain):
        * kjs/StructureID.h:

2008-09-19  Holger Hans Peter Freyther  <zecke@selfish.org>

        Reviewed by Maciej Stachowiak.

        Fix a mismatched new[]/delete in JSObject::allocatePropertyStorage

        * kjs/JSObject.cpp:
        (JSC::JSObject::allocatePropertyStorage): Spotted by valgrind.

2008-09-19  Darin Adler  <darin@apple.com>

        Reviewed by Sam Weinig.

        - part 2 of https://bugs.webkit.org/show_bug.cgi?id=20858
          make each distinct C++ class get a distinct JSC::Structure

        * JavaScriptCore.exp: Exported constructEmptyObject for use in WebCore.

        * kjs/JSGlobalObject.h: Changed the protected constructor to take a
        structure instead of a prototype.

        * kjs/JSVariableObject.h: Removed constructor that takes a prototype.

2008-09-19  Julien Chaffraix  <jchaffraix@pleyo.com>

        Reviewed by Alexey Proskuryakov.

        Use the template hoisting technique on the RefCounted class. This reduces the code bloat due to
        non-template methods' code been copied for each instance of the template.
        The patch splits RefCounted between a base class that holds non-template methods and attributes
        and the template RefCounted class that keeps the same functionnality.

        On my Linux with gcc 4.3 for the Gtk port, this is:
        - a ~600KB save on libwebkit.so in release.
        - a ~1.6MB save on libwebkit.so in debug.

        It is a wash on Sunspider and a small win on Dromaeo (not sure it is relevant).
        On the whole, it should be a small win as we reduce the compiled code size and the only
        new function call should be inlined by the compiler.

        * wtf/RefCounted.h:
        (WTF::RefCountedBase::ref): Copied from RefCounted.
        (WTF::RefCountedBase::hasOneRef): Ditto.
        (WTF::RefCountedBase::refCount): Ditto.
        (WTF::RefCountedBase::RefCountedBase): Ditto.
        (WTF::RefCountedBase::~RefCountedBase): Ditto.
        (WTF::RefCountedBase::derefBase): Tweaked from the RefCounted version to remove
        template section.
        (WTF::RefCounted::RefCounted):
        (WTF::RefCounted::deref): Small wrapper around RefCountedBase::derefBase().
        (WTF::RefCounted::~RefCounted): Keep private destructor.

2008-09-18  Darin Adler  <darin@apple.com>

        Reviewed by Maciej Stachowiak.

        - part 1 of https://bugs.webkit.org/show_bug.cgi?id=20858
          make each distinct C++ class get a distinct JSC::Structure

        * kjs/lookup.h: Removed things here that were used only in WebCore:
        cacheGlobalObject, JSC_DEFINE_PROTOTYPE, JSC_DEFINE_PROTOTYPE_WITH_PROTOTYPE,
        and JSC_IMPLEMENT_PROTOTYPE.

2008-09-18  Darin Adler  <darin@apple.com>

        Reviewed by Maciej Stachowiak.

        - https://bugs.webkit.org/show_bug.cgi?id=20927
          simplify/streamline the code to turn strings into identifiers while parsing

        * kjs/grammar.y: Get rid of string from the union, and use ident for STRING as
        well as for IDENT.

        * kjs/lexer.cpp:
        (JSC::Lexer::lex): Use makeIdentifier instead of makeUString for String.
        * kjs/lexer.h: Remove makeUString.

        * kjs/nodes.h: Changed StringNode to hold an Identifier instead of UString.

        * VM/CodeGenerator.cpp:
        (JSC::keyForCharacterSwitch): Updated since StringNode now holds an Identifier.
        (JSC::prepareJumpTableForStringSwitch): Ditto.
        * kjs/nodes.cpp:
        (JSC::StringNode::emitCode): Ditto. The comment from here is now in the lexer.
        (JSC::processClauseList): Ditto.
        * kjs/nodes2string.cpp:
        (JSC::StringNode::streamTo): Ditto.

2008-09-18  Sam Weinig  <sam@webkit.org>

        Fix style.

        * VM/Instruction.h:
        (JSC::Instruction::Instruction):

2008-09-18  Oliver Hunt  <oliver@apple.com>

        Reviewed by Maciej Stachowiak.

        Bug 20911: REGRESSION(r36480?): Reproducible assertion failure below derefStructureIDs 64-bit JavaScriptCore
        <https://bugs.webkit.org/show_bug.cgi?id=20911>

        The problem was simply caused by the int constructor for Instruction
        failing to initialise the full struct in 64bit builds.

        * VM/Instruction.h:
        (JSC::Instruction::Instruction):

2008-09-18  Darin Adler  <darin@apple.com>

        - fix release build

        * wtf/RefCountedLeakCounter.cpp: Removed stray "static".

2008-09-18  Darin Adler  <darin@apple.com>

        Reviewed by Sam Weinig.

        * kjs/JSGlobalObject.h: Tiny style guideline tweak.

2008-09-18  Darin Adler  <darin@apple.com>

        Reviewed by Sam Weinig.

        - fix https://bugs.webkit.org/show_bug.cgi?id=20925
          LEAK messages appear every time I quit

        * JavaScriptCore.exp: Updated, and also added an export
        needed for future WebCore use of JSC::StructureID.

        * wtf/RefCountedLeakCounter.cpp:
        (WTF::RefCountedLeakCounter::suppressMessages): Added.
        (WTF::RefCountedLeakCounter::cancelMessageSuppression): Added.
        (WTF::RefCountedLeakCounter::RefCountedLeakCounter): Tweaked a bit.
        (WTF::RefCountedLeakCounter::~RefCountedLeakCounter): Added code to
        log the reason there was no leak checking done.
        (WTF::RefCountedLeakCounter::increment): Tweaked a bit.
        (WTF::RefCountedLeakCounter::decrement): Ditto.

        * wtf/RefCountedLeakCounter.h: Replaced setLogLeakMessages with two
        new functions, suppressMessages and cancelMessageSuppression. Also
        added m_ prefixes to the data member names.

2008-09-18  Holger Hans Peter Freyther  <zecke@selfish.org>

        Reviewed by Mark Rowe.

        https://bugs.webkit.org/show_bug.cgi?id=20437

        Add a proper #define to define which XML Parser implementation to use. Client
        code can use #if USE(QXMLSTREAM) to decide if the Qt XML StreamReader
        implementation is going to be used.

        * wtf/Platform.h:

2008-09-18  Cameron Zwarich  <cwzwarich@uwaterloo.ca>

        Reviewed by Maciej Stachowiak.

        Make a Unicode non-breaking space count as a whitespace character in
        PCRE. This change was already made in WREC, and it fixes one of the
        Mozilla JS tests. Since it is now fixed in PCRE as well, we can check
        in a new set of expected test results.

        * pcre/pcre_internal.h:
        (isSpaceChar):
        * tests/mozilla/expected.html:

2008-09-18  Stephanie Lewis  <slewis@apple.com>

        Reviewed by Mark Rowe and Maciej Stachowiak.

        add an option use arch to specify which architecture to run.

        * tests/mozilla/jsDriver.pl:

2008-09-17  Oliver Hunt  <oliver@apple.com>

        Correctly restore argument reference prior to SFX runtime calls.
        
        Reviewed by Steve Falkenburg.

        * VM/CTI.cpp:
        (JSC::CTI::privateCompileSlowCases):
        (JSC::CTI::privateCompile):

2008-09-17  Cameron Zwarich  <cwzwarich@uwaterloo.ca>

        Reviewed by Maciej Stachowiak.

        Bug 20876: REGRESSION (r36417, r36427): fast/js/exception-expression-offset.html fails
        <https://bugs.webkit.org/show_bug.cgi?id=20876>

        r36417 and r36427 caused an get_by_id opcode to be emitted before the
        instanceof and construct opcodes, in order to enable inline caching of
        the prototype property. Unfortunately, this regressed some tests dealing
        with exceptions thrown by 'instanceof' and the 'new' operator. We fix
        these problems by detecting whether an "is not an object" exception is
        thrown before op_instanceof or op_construct, and emit the proper
        exception in those cases.

        * VM/CodeGenerator.cpp:
        (JSC::CodeGenerator::emitConstruct):
        * VM/CodeGenerator.h:
        * VM/ExceptionHelpers.cpp:
        (JSC::createInvalidParamError):
        (JSC::createNotAConstructorError):
        (JSC::createNotAnObjectError):
        * VM/ExceptionHelpers.h:
        * VM/Machine.cpp:
        (JSC::Machine::getOpcode):
        (JSC::Machine::privateExecute):
        * VM/Machine.h:
        * kjs/nodes.cpp:
        (JSC::NewExprNode::emitCode):
        (JSC::InstanceOfNode::emitCode):

2008-09-17  Gavin Barraclough  <barraclough@apple.com>

        Reviewed by Oliver Hunt.

        JIT generation cti_op_construct_verify.
        
        Quarter to half percent progression on v8-tests.
        Roughly not change on SunSpider (possible minor progression).

        * VM/CTI.cpp:
        (JSC::CTI::privateCompileMainPass):
        * VM/Machine.cpp:
        * VM/Machine.h:

2008-09-15  Steve Falkenburg  <sfalken@apple.com>

        Improve timer accuracy for JavaScript Date object on Windows.
        
        Use a combination of ftime and QueryPerformanceCounter.
        ftime returns the information we want, but doesn't have sufficient resolution.
        QueryPerformanceCounter has high resolution, but is only usable to measure time intervals.
        To combine them, we call ftime and QueryPerformanceCounter initially. Later calls will use
        QueryPerformanceCounter by itself, adding the delta to the saved ftime.  We re-sync to
        correct for drift if the low-res and high-res elapsed time between calls differs by more
        than twice the low-resolution timer resolution.
        
        QueryPerformanceCounter may be inaccurate due to a problems with:
        - some PCI bridge chipsets (http://support.microsoft.com/kb/274323)
        - BIOS bugs (http://support.microsoft.com/kb/895980/)
        - BIOS/HAL bugs on multiprocessor/multicore systems (http://msdn.microsoft.com/en-us/library/ms644904.aspx)
        
        Reviewed by Darin Adler.

        * kjs/DateMath.cpp:
        (JSC::highResUpTime):
        (JSC::lowResUTCTime):
        (JSC::qpcAvailable):
        (JSC::getCurrentUTCTimeWithMicroseconds):

2008-09-17  Gavin Barraclough  <barraclough@apple.com>

        Reviewed by Geoff Garen.

        Implement JIT generation of CallFrame initialization, for op_call.

        1% sunspider 2.5% v8-tests.

        * VM/CTI.cpp:
        (JSC::CTI::compileOpCall):
        * VM/Machine.cpp:
        (JSC::Machine::cti_op_call_JSFunction):
        (JSC::Machine::cti_op_call_NotJSFunction):

2008-09-17  Gavin Barraclough  <barraclough@apple.com>

        Reviewed by Geoff Garen.

        Optimizations for op_call in CTI.  Move check for (ctiCode == 0) into JIT code,
        move copying of scopeChain for CodeBlocks that needFullScopeChain into head of
        functions, instead of checking prior to making the call.

        3% on v8-tests (4% on richards, 6% in delta-blue)

        * VM/CTI.cpp:
        (JSC::CTI::compileOpCall):
        (JSC::CTI::privateCompileSlowCases):
        (JSC::CTI::privateCompile):
        * VM/Machine.cpp:
        (JSC::Machine::execute):
        (JSC::Machine::cti_op_call_JSFunction):
        (JSC::Machine::cti_vm_compile):
        (JSC::Machine::cti_vm_updateScopeChain):
        (JSC::Machine::cti_op_construct_JSConstruct):
        * VM/Machine.h:

2008-09-17  Tor Arne Vestbø  <tavestbo@trolltech.com>

        Fix the QtWebKit/Mac build

        * wtf/ThreadingQt.cpp:
        (WTF::initializeThreading): use QCoreApplication to get the main thread

2008-09-16  Cameron Zwarich  <cwzwarich@uwaterloo.ca>

        Reviewed by Maciej Stachowiak.

        Bug 20857: REGRESSION (r36427): ASSERTION FAILED: m_refCount >= 0 in RegisterID::deref()
        <https://bugs.webkit.org/show_bug.cgi?id=20857>

        Fix a problem stemming from the slightly unsafe behaviour of the
        CodeGenerator::finalDestination() method by putting the "func" argument
        of the emitConstruct() method in a RefPtr in its caller. Also, add an
        assertion guaranteeing that this is always the case.

        CodeGenerator::finalDestination() is still incorrect and can cause
        problems with a different allocator; see bug 20340 for more details.

        * VM/CodeGenerator.cpp:
        (JSC::CodeGenerator::emitConstruct):
        * kjs/nodes.cpp:
        (JSC::NewExprNode::emitCode):

2008-09-16  Alice Liu  <alice.liu@apple.com>

        build fix.

        * VM/CTI.cpp:
        (JSC::CTI::privateCompileMainPass):

2008-09-16  Gavin Barraclough  <barraclough@apple.com>

        Reviewed by Geoff Garen.

        CTI code generation for op_ret.  The majority of the work
        (updating variables on the stack & on exec) can be performed
        directly in generated code.

        We still need to check, & to call out to C-code to handle
        activation records, profiling, and full scope chains.

        +1.5% Sunspider, +5/6% v8 tests.

        * VM/CTI.cpp:
        (JSC::CTI::emitPutCTIParam):
        (JSC::CTI::compileOpCall):
        (JSC::CTI::privateCompileMainPass):
        * VM/CTI.h:
        * VM/Machine.cpp:
        (JSC::Machine::cti_op_ret_activation):
        (JSC::Machine::cti_op_ret_profiler):
        (JSC::Machine::cti_op_ret_scopeChain):
        * VM/Machine.h:

2008-09-16  Dimitri Glazkov  <dglazkov@chromium.org>

        Fix the Windows build.

        Add some extra parentheses to stop MSVC from complaining so much.

        * VM/Machine.cpp:
        (JSC::Machine::privateExecute):
        (JSC::Machine::cti_op_stricteq):
        (JSC::Machine::cti_op_nstricteq):
        * kjs/operations.cpp:
        (JSC::strictEqual):

2008-09-15  Maciej Stachowiak  <mjs@apple.com>

        Reviewed by Cameron Zwarich.
        
        - speed up the === and !== operators by choosing the fast cases better
        
        No effect on SunSpider but speeds up the V8 EarlyBoyer benchmark about 4%.

        * VM/Machine.cpp:
        (JSC::Machine::privateExecute):
        (JSC::Machine::cti_op_stricteq):
        (JSC::Machine::cti_op_nstricteq):
        * kjs/JSImmediate.h:
        (JSC::JSImmediate::areBothImmediate):
        * kjs/operations.cpp:
        (JSC::strictEqual):
        (JSC::strictEqualSlowCase):
        * kjs/operations.h:

2008-09-15  Oliver Hunt  <oliver@apple.com>

        RS=Sam Weinig.

        Coding style cleanup.

        * VM/Machine.cpp:
        (JSC::Machine::privateExecute):

2008-09-15  Oliver Hunt  <oliver@apple.com>

        Reviewed by Cameron Zwarich.

        Bug 20874: op_resolve does not do any form of caching
        <https://bugs.webkit.org/show_bug.cgi?id=20874>

        This patch adds an op_resolve_global opcode to handle (and cache)
        property lookup we can statically determine must occur on the global
        object (if at all).

        3% progression on sunspider, 3.2x improvement to bitops-bitwise-and, and
        10% in math-partial-sums

        * VM/CTI.cpp:
        (JSC::CTI::privateCompileMainPass):
        * VM/CTI.h:
        * VM/CodeBlock.cpp:
        (JSC::CodeBlock::dump):
        * VM/CodeGenerator.cpp:
        (JSC::CodeGenerator::findScopedProperty):
        (JSC::CodeGenerator::emitResolve):
        * VM/Machine.cpp:
        (JSC::resolveGlobal):
        (JSC::Machine::privateExecute):
        (JSC::Machine::cti_op_resolve_global):
        * VM/Machine.h:
        * VM/Opcode.h:

2008-09-15  Sam Weinig  <sam@webkit.org>

        Roll out r36462.  It broke document.all.

        * VM/CTI.cpp:
        (JSC::CTI::privateCompileMainPass):
        (JSC::CTI::privateCompileSlowCases):
        * VM/CTI.h:
        * VM/Machine.cpp:
        (JSC::Machine::Machine):
        (JSC::Machine::cti_op_eq_null):
        (JSC::Machine::cti_op_neq_null):
        * VM/Machine.h:
        (JSC::Machine::isJSString):
        * kjs/JSCell.h:
        * kjs/JSWrapperObject.h:
        * kjs/StringObject.h:
        * kjs/StringObjectThatMasqueradesAsUndefined.h:

2008-09-15  Cameron Zwarich  <cwzwarich@uwaterloo.ca>

        Reviewed by Maciej Stachowiak.

        Bug 20863: ASSERTION FAILED: addressOffset < instructions.size() in CodeBlock::getHandlerForVPC
        <https://bugs.webkit.org/show_bug.cgi?id=20863>

        r36427 changed the number of arguments to op_construct without changing
        the argument index for the vPC in the call to initializeCallFrame() in
        the CTI case. This caused a JSC test failure. Correcting the argument
        index fixes the test failure.

        * VM/Machine.cpp:
        (JSC::Machine::cti_op_construct_JSConstruct):

2008-09-15  Mark Rowe  <mrowe@apple.com>

        Fix GCC 4.2 build.

        * VM/CTI.h:

2008-09-15  Geoffrey Garen  <ggaren@apple.com>

        Reviewed by Maciej Stachowiak.
        
        Fixed a typo in op_get_by_id_chain that caused it to miss every time
        in the interpreter.
        
        Also, a little cleanup.

        * VM/Machine.cpp:
        (JSC::Machine::privateExecute): Set up baseObject before entering the
        loop, so we compare against the right values.

2008-09-15  Geoffrey Garen  <ggaren@apple.com>

        Reviewed by Sam Weinig.
        
        Removed the CalledAsConstructor flag from the call frame header. Now,
        we use an explicit opcode at the call site to fix up constructor results.

        SunSpider says 0.4% faster.
        
        cti_op_construct_verify is an out-of-line function call for now, but we
        can fix that once StructureID holds type information like isObject.

        * VM/CTI.cpp:
        (JSC::CTI::privateCompileMainPass): Codegen for the new opcode.

        * VM/CodeBlock.cpp:
        (JSC::CodeBlock::dump):

        * VM/CodeGenerator.cpp: Codegen for the new opcode. Also...
        (JSC::CodeGenerator::emitCall): ... don't test for known non-zero value.
        (JSC::CodeGenerator::emitConstruct): ... ditto.

        * VM/Machine.cpp: No more CalledAsConstructor
        (JSC::Machine::privateExecute): Implementation for the new opcode.
        (JSC::Machine::cti_op_ret): The speedup: no need to check whether we were
        called as a constructor.
        (JSC::Machine::cti_op_construct_verify): Implementation for the new opcode.
        * VM/Machine.h:

        * VM/Opcode.h: Declare new opcode.

        * VM/RegisterFile.h:
        (JSC::RegisterFile::): No more CalledAsConstructor

2008-09-15  Gavin Barraclough  <barraclough@apple.com>

        Reviewed by Geoff Garen.

        Inline code generation of eq_null/neq_null for CTI.  Uses vptr checking for
        StringObjectsThatAreMasqueradingAsBeingUndefined.  In the long run, the
        masquerading may be handled differently (through the StructureIDs - see bug
        #20823).

        >1% on v8-tests.

        * VM/CTI.cpp:
        (JSC::CTI::emitJumpSlowCaseIfIsJSCell):
        (JSC::CTI::privateCompileMainPass):
        (JSC::CTI::privateCompileSlowCases):
        * VM/CTI.h:
        * VM/Machine.cpp:
        (JSC::Machine::Machine):
        (JSC::Machine::cti_op_eq_null):
        (JSC::Machine::cti_op_neq_null):
        * VM/Machine.h:
        (JSC::Machine::doesMasqueradesAsUndefined):
        * kjs/JSWrapperObject.h:
        (JSC::JSWrapperObject::):
        (JSC::JSWrapperObject::JSWrapperObject):
        * kjs/StringObject.h:
        (JSC::StringObject::StringObject):
        * kjs/StringObjectThatMasqueradesAsUndefined.h:
        (JSC::StringObjectThatMasqueradesAsUndefined::StringObjectThatMasqueradesAsUndefined):

2008-09-15  Cameron Zwarich  <cwzwarich@uwaterloo.ca>

        Rubber-stamped by Oliver Hunt.

        r36427 broke CodeBlock::dump() by changing the number of arguments to
        op_construct without changing the code that prints it. This patch fixes
        it by printing the additional argument.

        * JavaScriptCore.xcodeproj/project.pbxproj:
        * VM/CodeBlock.cpp:
        (JSC::CodeBlock::dump):

2008-09-15  Adam Roben  <aroben@apple.com>

        Build fix

        * kjs/StructureID.cpp: Removed a stray semicolon.

2008-09-15  Cameron Zwarich  <cwzwarich@uwaterloo.ca>

        Reviewed by Maciej Stachowiak.

        Fix a crash in fast/js/exception-expression-offset.html caused by not
        updating all mentions of the length of op_construct in r36427.

        * VM/Machine.cpp:
        (JSC::Machine::cti_op_construct_NotJSConstruct):

2008-09-15  Maciej Stachowiak  <mjs@apple.com>

        Reviewed by Cameron Zwarich.
        
        - fix layout test failure introduced by fix for 20849
        
        (The failing test was fast/js/delete-then-put.html)

        * kjs/JSObject.cpp:
        (JSC::JSObject::removeDirect): Clear enumeration cache
        in the dictionary case.
        * kjs/JSObject.h:
        (JSC::JSObject::putDirect): Ditto.
        * kjs/StructureID.h:
        (JSC::StructureID::clearEnumerationCache): Inline to handle the
        clear.

2008-09-15  Maciej Stachowiak  <mjs@apple.com>

        Reviewed by Cameron Zwarich.
        
        - fix JSC test failures introduced by fix for 20849

        * kjs/PropertyMap.cpp:
        (JSC::PropertyMap::getEnumerablePropertyNames): Use the correct count.

2008-09-15  Cameron Zwarich  <cwzwarich@uwaterloo.ca>

        Reviewed by Maciej Stachowiak.

        Bug 20851: REGRESSION (r36410): fast/js/kde/GlobalObject.html fails
        <https://bugs.webkit.org/show_bug.cgi?id=20851>

        r36410 introduced an optimization for parseInt() that is incorrect when
        its argument is larger than the range of a 32-bit integer. If the
        argument is a number that is not an immediate integer, then the correct
        behaviour is to return the floor of its value, unless it is an infinite
        value, in which case the correct behaviour is to return 0.

        * kjs/JSGlobalObjectFunctions.cpp:
        (JSC::globalFuncParseInt):

2008-09-15  Sam Weinig  <sam@webkit.org>

        Reviewed by Maciej Stachowiak.

        Patch for https://bugs.webkit.org/show_bug.cgi?id=20849
        Cache property names for getEnumerablePropertyNames in the StructureID.

        ~0.5% speedup on Sunspider overall (9.7% speedup on string-fasta).  ~1% speedup
        on the v8 test suite.

        * kjs/JSObject.cpp:
        (JSC::JSObject::getPropertyNames):
        * kjs/PropertyMap.cpp:
        (JSC::PropertyMap::getEnumerablePropertyNames):
        * kjs/PropertyMap.h:
        * kjs/StructureID.cpp:
        (JSC::StructureID::StructureID):
        (JSC::StructureID::getEnumerablePropertyNames):
        * kjs/StructureID.h:

2008-09-14  Maciej Stachowiak  <mjs@apple.com>

        Reviewed by Cameron Zwarich.
        
        - speed up JS construction by extracting "prototype" lookup so PIC applies.
        
        ~0.5% speedup on SunSpider
        Speeds up some of the V8 tests as well, most notably earley-boyer.

        * VM/CTI.cpp:
        (JSC::CTI::compileOpCall): Account for extra arg for prototype.
        (JSC::CTI::privateCompileMainPass): Account for increased size of op_construct.
        * VM/CodeGenerator.cpp:
        (JSC::CodeGenerator::emitConstruct): Emit separate lookup to get prototype property.
        * VM/Machine.cpp:
        (JSC::Machine::privateExecute): Expect prototype arg in op_construct.
        (JSC::Machine::cti_op_construct_JSConstruct): ditto
        (JSC::Machine::cti_op_construct_NotJSConstruct): ditto

2008-09-10  Alexey Proskuryakov  <ap@webkit.org>

        Reviewed by Eric Seidel.

        Add a protected destructor for RefCounted.

        It is wrong to call its destructor directly, because (1) this should be taken care of by
        deref(), and (2) many classes that use RefCounted have non-virtual destructors.

        No change in behavior.

        * wtf/RefCounted.h: (WTF::RefCounted::~RefCounted):

2008-09-14  Gavin Barraclough  <barraclough@apple.com>

        Reviewed by Sam Weinig.

        Accelerated property accesses.

        Inline more of the array access code into the JIT code for get/put_by_val.
        Accelerate get/put_by_id by speculatively inlining a disable direct access
        into the hot path of the code, and repatch this with the correct StructureID
        and property map offset once these are known.  In the case of accesses to the
        prototype and reading the array-length a trampoline is genertaed, and the
        branch to the slow-case is relinked to jump to this.

        By repatching, we mean rewriting the x86 instruction stream.  Instructions are
        only modified in a simple fasion - altering immediate operands, memory access
        deisplacements, and branch offsets.
        
        For regular get_by_id/put_by_id accesses to an object, a StructureID in an
        instruction's immediate operant is updateded, and a memory access operation's
        displacement is updated to access the correct field on the object.  In the case
        of more complex accesses (array length and get_by_id_prototype) the offset on
        the branch to slow-case is updated, to now jump to a trampoline.

        +2.8% sunspider, +13% v8-tests

        * VM/CTI.cpp:
        (JSC::CTI::emitCall):
        (JSC::CTI::emitJumpSlowCaseIfNotJSCell):
        (JSC::CTI::CTI):
        (JSC::CTI::privateCompileMainPass):
        (JSC::CTI::privateCompileSlowCases):
        (JSC::CTI::privateCompile):
        (JSC::CTI::privateCompileGetByIdSelf):
        (JSC::CTI::privateCompileGetByIdProto):
        (JSC::CTI::privateCompileGetByIdChain):
        (JSC::CTI::privateCompilePutByIdReplace):
        (JSC::CTI::privateCompilePutByIdTransition):
        (JSC::CTI::privateCompileArrayLengthTrampoline):
        (JSC::CTI::privateCompileStringLengthTrampoline):
        (JSC::CTI::patchGetByIdSelf):
        (JSC::CTI::patchPutByIdReplace):
        (JSC::CTI::privateCompilePatchGetArrayLength):
        (JSC::CTI::privateCompilePatchGetStringLength):
        * VM/CTI.h:
        (JSC::CTI::compileGetByIdSelf):
        (JSC::CTI::compileGetByIdProto):
        (JSC::CTI::compileGetByIdChain):
        (JSC::CTI::compilePutByIdReplace):
        (JSC::CTI::compilePutByIdTransition):
        (JSC::CTI::compileArrayLengthTrampoline):
        (JSC::CTI::compileStringLengthTrampoline):
        (JSC::CTI::compilePatchGetArrayLength):
        (JSC::CTI::compilePatchGetStringLength):
        * VM/CodeBlock.cpp:
        (JSC::CodeBlock::dump):
        (JSC::CodeBlock::~CodeBlock):
        * VM/CodeBlock.h:
        (JSC::StructureStubInfo::StructureStubInfo):
        (JSC::CodeBlock::getStubInfo):
        * VM/Machine.cpp:
        (JSC::Machine::tryCTICachePutByID):
        (JSC::Machine::tryCTICacheGetByID):
        (JSC::Machine::cti_op_put_by_val_array):
        * VM/Machine.h:
        * masm/X86Assembler.h:
        (JSC::X86Assembler::):
        (JSC::X86Assembler::cmpl_i8m):
        (JSC::X86Assembler::emitUnlinkedJa):
        (JSC::X86Assembler::getRelocatedAddress):
        (JSC::X86Assembler::getDifferenceBetweenLabels):
        (JSC::X86Assembler::emitModRm_opmsib):

2008-09-14  Maciej Stachowiak  <mjs@apple.com>

        Reviewed by Cameron Zwarich.
        
        - split the "prototype" lookup for hasInstance into opcode stream so it can be cached
        
        ~5% speedup on v8 earley-boyer test

        * API/JSCallbackObject.h: Add a parameter for the pre-looked-up prototype.
        * API/JSCallbackObjectFunctions.h:
        (JSC::::hasInstance): Ditto.
        * API/JSValueRef.cpp:
        (JSValueIsInstanceOfConstructor): Look up and pass in prototype.
        * JavaScriptCore.exp:
        * VM/CTI.cpp:
        (JSC::CTI::privateCompileMainPass): Pass along prototype.
        * VM/CodeBlock.cpp:
        (JSC::CodeBlock::dump): Print third arg.
        * VM/CodeGenerator.cpp:
        (JSC::CodeGenerator::emitInstanceOf): Implement this, now that there
        is a third argument.
        * VM/CodeGenerator.h:
        * VM/Machine.cpp:
        (JSC::Machine::privateExecute): Pass along the prototype.
        (JSC::Machine::cti_op_instanceof): ditto
        * kjs/JSObject.cpp:
        (JSC::JSObject::hasInstance): Expect to get a pre-looked-up prototype.
        * kjs/JSObject.h:
        * kjs/nodes.cpp:
        (JSC::InstanceOfNode::emitCode): Emit a get_by_id of the prototype
        property and pass that register to instanceof.
        * kjs/nodes.h:

2008-09-14  Gavin Barraclough  <barraclough@apple.com>

        Reviewed by Sam Weinig.

        Remove unnecessary virtual function call from cti_op_call_JSFunction -
        ~5% on richards, ~2.5% on v8-tests, ~0.5% on sunspider.

        * VM/Machine.cpp:
        (JSC::Machine::cti_op_call_JSFunction):

2008-09-14  Cameron Zwarich  <cwzwarich@uwaterloo.ca>

        Reviewed by Maciej Stachowiak.

        Bug 20827: the 'typeof' operator is slow
        <https://bugs.webkit.org/show_bug.cgi?id=20827>

        Optimize the 'typeof' operator when its result is compared to a constant
        string.

        This is a 5.5% speedup on the V8 Earley-Boyer test.

        * VM/CTI.cpp:
        (JSC::CTI::privateCompileMainPass):
        * VM/CodeBlock.cpp:
        (JSC::CodeBlock::dump):
        * VM/CodeGenerator.cpp:
        (JSC::CodeGenerator::emitEqualityOp):
        * VM/CodeGenerator.h:
        * VM/Machine.cpp:
        (JSC::jsIsObjectType):
        (JSC::jsIsFunctionType):
        (JSC::Machine::privateExecute):
        (JSC::Machine::cti_op_is_undefined):
        (JSC::Machine::cti_op_is_boolean):
        (JSC::Machine::cti_op_is_number):
        (JSC::Machine::cti_op_is_string):
        (JSC::Machine::cti_op_is_object):
        (JSC::Machine::cti_op_is_function):
        * VM/Machine.h:
        * VM/Opcode.h:
        * kjs/nodes.cpp:
        (JSC::BinaryOpNode::emitCode):
        (JSC::EqualNode::emitCode):
        (JSC::StrictEqualNode::emitCode):
        * kjs/nodes.h:

2008-09-14  Sam Weinig  <sam@webkit.org>

        Reviewed by Cameron Zwarich.

        Patch for https://bugs.webkit.org/show_bug.cgi?id=20844
        Speed up parseInt for numbers

        Sunspider reports this as 1.029x as fast overall and 1.37x as fast on string-unpack-code.
        No change on the v8 suite.

        * kjs/JSGlobalObjectFunctions.cpp:
        (JSC::globalFuncParseInt): Don't convert numbers to strings just to
        convert them back to numbers.

2008-09-14  Cameron Zwarich  <cwzwarich@uwaterloo.ca>

        Reviewed by Oliver Hunt.

        Bug 20816: op_lesseq should be optimized
        <https://bugs.webkit.org/show_bug.cgi?id=20816>

        Add a loop_if_lesseq opcode that is similar to the loop_if_less opcode.

        This is a 9.4% speedup on the V8 Crypto benchmark.

        * VM/CTI.cpp:
        (JSC::CTI::privateCompileMainPass):
        (JSC::CTI::privateCompileSlowCases):
        * VM/CodeBlock.cpp:
        (JSC::CodeBlock::dump):
        * VM/CodeGenerator.cpp:
        (JSC::CodeGenerator::emitJumpIfTrue):
        * VM/Machine.cpp:
        (JSC::Machine::privateExecute):
        (JSC::Machine::cti_op_loop_if_lesseq):
        * VM/Machine.h:
        * VM/Opcode.h:

2008-09-14  Sam Weinig  <sam@webkit.org>

        Reviewed by Cameron Zwarich.

        Cleanup Sampling code.

        * VM/CTI.cpp:
        (JSC::CTI::emitCall):
        (JSC::CTI::privateCompileMainPass):
        * VM/CTI.h:
        (JSC::CTI::execute):
        * VM/SamplingTool.cpp:
        (JSC::):
        (JSC::SamplingTool::run):
        (JSC::SamplingTool::dump):
        * VM/SamplingTool.h:
        (JSC::SamplingTool::callingHostFunction):

2008-09-13  Oliver Hunt  <oliver@apple.com>

        Reviewed by Cameron Zwarich.

        Bug 20821: Cache property transitions to speed up object initialization
        https://bugs.webkit.org/show_bug.cgi?id=20821

        Implement a transition cache to improve the performance of new properties
        being added to objects.  This is extremely beneficial in constructors and
        shows up as a 34% improvement on access-binary-trees in SunSpider (0.8%
        overall)

        * VM/CTI.cpp:
        (JSC::CTI::privateCompileMainPass):
        (JSC::):
        (JSC::transitionWillNeedStorageRealloc):
        (JSC::CTI::privateCompilePutByIdTransition):
        * VM/CTI.h:
        (JSC::CTI::compilePutByIdTransition):
        * VM/CodeBlock.cpp:
        (JSC::printPutByIdOp):
        (JSC::CodeBlock::printStructureIDs):
        (JSC::CodeBlock::dump):
        (JSC::CodeBlock::derefStructureIDs):
        (JSC::CodeBlock::refStructureIDs):
        * VM/CodeGenerator.cpp:
        (JSC::CodeGenerator::emitPutById):
        * VM/Machine.cpp:
        (JSC::cachePrototypeChain):
        (JSC::Machine::tryCachePutByID):
        (JSC::Machine::tryCacheGetByID):
        (JSC::Machine::privateExecute):
        (JSC::Machine::tryCTICachePutByID):
        (JSC::Machine::tryCTICacheGetByID):
        * VM/Machine.h:
        * VM/Opcode.h:
        * kjs/JSObject.h:
        (JSC::JSObject::putDirect):
        (JSC::JSObject::transitionTo):
        * kjs/PutPropertySlot.h:
        (JSC::PutPropertySlot::PutPropertySlot):
        (JSC::PutPropertySlot::wasTransition):
        (JSC::PutPropertySlot::setWasTransition):
        * kjs/StructureID.cpp:
        (JSC::StructureID::transitionTo):
        (JSC::StructureIDChain::StructureIDChain):
        * kjs/StructureID.h:
        (JSC::StructureID::previousID):
        (JSC::StructureID::setCachedPrototypeChain):
        (JSC::StructureID::cachedPrototypeChain):
        (JSC::StructureID::propertyMap):
        * masm/X86Assembler.h:
        (JSC::X86Assembler::addl_i8m):
        (JSC::X86Assembler::subl_i8m):

2008-09-12  Cameron Zwarich  <cwzwarich@uwaterloo.ca>

        Reviewed by Maciej Stachowiak.

        Bug 20819: JSValue::isObject() is slow
        <https://bugs.webkit.org/show_bug.cgi?id=20819>

        Optimize JSCell::isObject() and JSCell::isString() by making them
        non-virtual calls that rely on the StructureID type information.

        This is a 0.7% speedup on SunSpider and a 1.0% speedup on the V8
        benchmark suite.

        * JavaScriptCore.exp:
        * kjs/JSCell.cpp:
        * kjs/JSCell.h:
        (JSC::JSCell::isObject):
        (JSC::JSCell::isString):
        * kjs/JSObject.cpp:
        * kjs/JSObject.h:
        * kjs/JSString.cpp:
        * kjs/JSString.h:
        (JSC::JSString::JSString):
        * kjs/StructureID.h:
        (JSC::StructureID::type):

2008-09-11  Stephanie Lewis  <slewis@apple.com>

        Reviewed by Oliver Hunt.

        Turn off PGO Optimization on CTI.cpp -> <rdar://problem/6207709>.  Fixes
        crash on CNN and on Dromaeo.
        Fix Missing close tag in vcproj. 

        * JavaScriptCore.vcproj/JavaScriptCore/JavaScriptCore.vcproj:

2008-09-11  Cameron Zwarich  <cwzwarich@uwaterloo.ca>

        Not reviewed.

        Correct an SVN problem with the last commit and actually add the new
        files.

        * wrec/CharacterClassConstructor.cpp: Added.
        (JSC::):
        (JSC::getCharacterClassNewline):
        (JSC::getCharacterClassDigits):
        (JSC::getCharacterClassSpaces):
        (JSC::getCharacterClassWordchar):
        (JSC::getCharacterClassNondigits):
        (JSC::getCharacterClassNonspaces):
        (JSC::getCharacterClassNonwordchar):
        (JSC::CharacterClassConstructor::addSorted):
        (JSC::CharacterClassConstructor::addSortedRange):
        (JSC::CharacterClassConstructor::put):
        (JSC::CharacterClassConstructor::flush):
        (JSC::CharacterClassConstructor::append):
        * wrec/CharacterClassConstructor.h: Added.
        (JSC::CharacterClassConstructor::CharacterClassConstructor):
        (JSC::CharacterClassConstructor::isUpsideDown):
        (JSC::CharacterClassConstructor::charClass):

2008-09-11  Cameron Zwarich  <cwzwarich@uwaterloo.ca>

        Reviewed by Maciej Stachowiak.

        Bug 20788: Split CharacterClassConstructor into its own file
        <https://bugs.webkit.org/show_bug.cgi?id=20788>

        Split CharacterClassConstructor into its own file and clean up some
        style issues.

        * JavaScriptCore.vcproj/JavaScriptCore/JavaScriptCore.vcproj:
        * JavaScriptCore.xcodeproj/project.pbxproj:
        * wrec/CharacterClassConstructor.cpp: Added.
        (JSC::):
        (JSC::getCharacterClassNewline):
        (JSC::getCharacterClassDigits):
        (JSC::getCharacterClassSpaces):
        (JSC::getCharacterClassWordchar):
        (JSC::getCharacterClassNondigits):
        (JSC::getCharacterClassNonspaces):
        (JSC::getCharacterClassNonwordchar):
        (JSC::CharacterClassConstructor::addSorted):
        (JSC::CharacterClassConstructor::addSortedRange):
        (JSC::CharacterClassConstructor::put):
        (JSC::CharacterClassConstructor::flush):
        (JSC::CharacterClassConstructor::append):
        * wrec/CharacterClassConstructor.h: Added.
        (JSC::CharacterClassConstructor::CharacterClassConstructor):
        (JSC::CharacterClassConstructor::isUpsideDown):
        (JSC::CharacterClassConstructor::charClass):
        * wrec/WREC.cpp:
        (JSC::WRECParser::parseCharacterClass):

2008-09-10  Simon Hausmann  <hausmann@webkit.org>

        Not reviewed but trivial one-liner for yet unused macro.

        Changed PLATFORM(WINCE) to PLATFORM(WIN_CE) as requested by Mark.

        (part of https://bugs.webkit.org/show_bug.cgi?id=20746)

        * wtf/Platform.h:

2008-09-10  Cameron Zwarich  <cwzwarich@uwaterloo.ca>

        Rubber-stamped by Oliver Hunt.

        Fix a typo by renaming the overloaded orl_rr that takes an immediate to
        orl_i32r.

        * VM/CTI.cpp:
        (JSC::CTI::emitFastArithPotentiallyReTagImmediate):
        * masm/X86Assembler.h:
        (JSC::X86Assembler::orl_i32r):
        * wrec/WREC.cpp:
        (JSC::WRECGenerator::generatePatternCharacter):
        (JSC::WRECGenerator::generateCharacterClassInverted):

2008-09-10  Sam Weinig  <sam@webkit.org>

        Reviewed by Geoff Garen.

        Add inline property storage for JSObject.

        1.2% progression on Sunspider. .5% progression on the v8 test suite.

        * JavaScriptCore.exp:
        * VM/CTI.cpp:
        (JSC::CTI::privateCompileGetByIdProto):
        (JSC::CTI::privateCompileGetByIdChain):
        * kjs/JSObject.cpp:
        (JSC::JSObject::mark): There is no reason to check storageSize now that
        we start from 0.
        (JSC::JSObject::allocatePropertyStorage): Allocates/reallocates heap storage.
        * kjs/JSObject.h:
        (JSC::JSObject::offsetForLocation): m_propertyStorage is not an OwnArrayPtr
        now so there is no reason to .get()
        (JSC::JSObject::usingInlineStorage):
        (JSC::JSObject::JSObject): Start with m_propertyStorage pointing to the
        inline storage.
        (JSC::JSObject::~JSObject): Free the heap storage if not using the inline
        storage.
        (JSC::JSObject::putDirect): Switch to the heap storage only when we know
        we know that we are about to add a property that will overflow the inline
        storage.
        * kjs/PropertyMap.cpp:
        (JSC::PropertyMap::createTable): Don't allocate the propertyStorage, that is
        now handled by JSObject.
        (JSC::PropertyMap::rehash): PropertyStorage is not a OwnArrayPtr anymore.
        * kjs/PropertyMap.h:
        (JSC::PropertyMap::storageSize): Rename from markingCount.
        * kjs/StructureID.cpp:
        (JSC::StructureID::addPropertyTransition): Don't resize the property storage
        if we are using inline storage.
        * kjs/StructureID.h:

2008-09-10  Oliver Hunt  <oliver@apple.com>

        Reviewed by Geoff Garen.

        Inline immediate number version of op_mul.

        Renamed mull_rr to imull_rr as that's what it's 
        actually doing, and added imull_i32r for the constant
        case immediate multiply.

        1.1% improvement to SunSpider.

        * VM/CTI.cpp:
        (JSC::CTI::privateCompileMainPass):
        (JSC::CTI::privateCompileSlowCases):
        * masm/X86Assembler.h:
        (JSC::X86Assembler::):
        (JSC::X86Assembler::imull_rr):
        (JSC::X86Assembler::imull_i32r):

2008-09-10  Cameron Zwarich  <cwzwarich@uwaterloo.ca>

        Not reviewed.

        Mac build fix.

        * JavaScriptCore.xcodeproj/project.pbxproj:

2008-09-09  Oliver Hunt  <oliver@apple.com>

        Reviewed by Maciej Stachowiak.

        Add optimised access to known properties on the global object.

        Improve cross scope access to the global object by emitting
        code to access it directly rather than by walking the scope chain.

        This is a 0.8% win in SunSpider and a 1.7% win in the v8 benchmarks.

        * VM/CTI.cpp:
        (JSC::CTI::privateCompileMainPass):
        (JSC::CTI::emitGetVariableObjectRegister):
        (JSC::CTI::emitPutVariableObjectRegister):
        * VM/CTI.h:
        * VM/CodeBlock.cpp:
        (JSC::CodeBlock::dump):
        * VM/CodeGenerator.cpp:
        (JSC::CodeGenerator::findScopedProperty):
        (JSC::CodeGenerator::emitResolve):
        (JSC::CodeGenerator::emitGetScopedVar):
        (JSC::CodeGenerator::emitPutScopedVar):
        * VM/CodeGenerator.h:
        * VM/Machine.cpp:
        (JSC::Machine::privateExecute):
        * VM/Opcode.h:
        * kjs/nodes.cpp:
        (JSC::FunctionCallResolveNode::emitCode):
        (JSC::PostfixResolveNode::emitCode):
        (JSC::PrefixResolveNode::emitCode):
        (JSC::ReadModifyResolveNode::emitCode):
        (JSC::AssignResolveNode::emitCode):

2008-09-10  Maciej Stachowiak  <mjs@apple.com>

        Reviewed by Oliver.
        
        - enable polymorphic inline caching of properties of primitives
        
        1.012x speedup on SunSpider.

        We create special structure IDs for JSString and
        JSNumberCell. Unlike normal structure IDs, these cannot hold the
        true prototype. Due to JS autoboxing semantics, the prototype used
        when looking up string or number properties depends on the lexical
        global object of the call site, not the creation site. Thus we
        enable StructureIDs to handle this quirk for primitives.
        
        Everything else should be straightforward.
        
        * VM/CTI.cpp:
        (JSC::CTI::privateCompileGetByIdProto):
        (JSC::CTI::privateCompileGetByIdChain):
        * VM/CTI.h:
        (JSC::CTI::compileGetByIdProto):
        (JSC::CTI::compileGetByIdChain):
        * VM/JSPropertyNameIterator.h:
        (JSC::JSPropertyNameIterator::JSPropertyNameIterator):
        * VM/Machine.cpp:
        (JSC::Machine::Machine):
        (JSC::cachePrototypeChain):
        (JSC::Machine::tryCachePutByID):
        (JSC::Machine::tryCacheGetByID):
        (JSC::Machine::privateExecute):
        (JSC::Machine::tryCTICachePutByID):
        (JSC::Machine::tryCTICacheGetByID):
        * kjs/GetterSetter.h:
        (JSC::GetterSetter::GetterSetter):
        * kjs/JSCell.h:
        * kjs/JSGlobalData.cpp:
        (JSC::JSGlobalData::JSGlobalData):
        * kjs/JSGlobalData.h:
        * kjs/JSGlobalObject.h:
        (JSC::StructureID::prototypeForLookup):
        * kjs/JSNumberCell.h:
        (JSC::JSNumberCell::JSNumberCell):
        (JSC::jsNumberCell):
        * kjs/JSObject.h:
        (JSC::JSObject::prototype):
        * kjs/JSString.cpp:
        (JSC::jsString):
        (JSC::jsSubstring):
        (JSC::jsOwnedString):
        * kjs/JSString.h:
        (JSC::JSString::JSString):
        (JSC::JSString::):
        (JSC::jsSingleCharacterString):
        (JSC::jsSingleCharacterSubstring):
        (JSC::jsNontrivialString):
        * kjs/SmallStrings.cpp:
        (JSC::SmallStrings::createEmptyString):
        (JSC::SmallStrings::createSingleCharacterString):
        * kjs/StructureID.cpp:
        (JSC::StructureID::StructureID):
        (JSC::StructureID::addPropertyTransition):
        (JSC::StructureID::getterSetterTransition):
        (JSC::StructureIDChain::StructureIDChain):
        * kjs/StructureID.h:
        (JSC::StructureID::create):
        (JSC::StructureID::storedPrototype):

2008-09-09  Joerg Bornemann  <joerg.bornemann@trolltech.com>

        Reviewed by Sam Weinig.

        https://bugs.webkit.org/show_bug.cgi?id=20746

        Added WINCE platform macro.

        * wtf/Platform.h:

2008-09-09  Sam Weinig  <sam@webkit.org>

        Reviewed by Mark Rowe.

        Remove unnecessary override of getOffset.

        Sunspider reports this as a .6% progression.

        * JavaScriptCore.exp:
        * kjs/JSObject.h:
        (JSC::JSObject::getDirectLocation):
        (JSC::JSObject::getOwnPropertySlotForWrite):
        (JSC::JSObject::putDirect):
        * kjs/PropertyMap.cpp:
        * kjs/PropertyMap.h:

2008-09-09  Cameron Zwarich  <cwzwarich@uwaterloo.ca>

        Reviewed by Maciej Stachowiak.

        Bug 20759: Remove MacroAssembler
        <https://bugs.webkit.org/show_bug.cgi?id=20759>

        Remove MacroAssembler and move its functionality to X86Assembler.

        * JavaScriptCore.vcproj/JavaScriptCore/JavaScriptCore.vcproj:
        * JavaScriptCore.xcodeproj/project.pbxproj:
        * VM/CTI.cpp:
        (JSC::CTI::emitGetArg):
        (JSC::CTI::emitGetPutArg):
        (JSC::CTI::emitPutArg):
        (JSC::CTI::emitPutCTIParam):
        (JSC::CTI::emitGetCTIParam):
        (JSC::CTI::emitPutToCallFrameHeader):
        (JSC::CTI::emitGetFromCallFrameHeader):
        (JSC::CTI::emitPutResult):
        (JSC::CTI::emitDebugExceptionCheck):
        (JSC::CTI::emitJumpSlowCaseIfNotImm):
        (JSC::CTI::emitJumpSlowCaseIfNotImms):
        (JSC::CTI::emitFastArithDeTagImmediate):
        (JSC::CTI::emitFastArithReTagImmediate):
        (JSC::CTI::emitFastArithPotentiallyReTagImmediate):
        (JSC::CTI::emitFastArithImmToInt):
        (JSC::CTI::emitFastArithIntToImmOrSlowCase):
        (JSC::CTI::emitFastArithIntToImmNoCheck):
        (JSC::CTI::compileOpCall):
        (JSC::CTI::emitSlowScriptCheck):
        (JSC::CTI::privateCompileMainPass):
        (JSC::CTI::privateCompileSlowCases):
        (JSC::CTI::privateCompile):
        (JSC::CTI::privateCompileGetByIdSelf):
        (JSC::CTI::privateCompileGetByIdProto):
        (JSC::CTI::privateCompileGetByIdChain):
        (JSC::CTI::privateCompilePutByIdReplace):
        (JSC::CTI::privateArrayLengthTrampoline):
        (JSC::CTI::privateStringLengthTrampoline):
        (JSC::CTI::compileRegExp):
        * VM/CTI.h:
        (JSC::CallRecord::CallRecord):
        (JSC::JmpTable::JmpTable):
        (JSC::SlowCaseEntry::SlowCaseEntry):
        (JSC::CTI::JSRInfo::JSRInfo):
        * masm/MacroAssembler.h: Removed.
        * masm/MacroAssemblerWin.cpp: Removed.
        * masm/X86Assembler.h:
        (JSC::X86Assembler::emitConvertToFastCall):
        (JSC::X86Assembler::emitRestoreArgumentReference):
        * wrec/WREC.h:
        (JSC::WRECGenerator::WRECGenerator):
        (JSC::WRECParser::WRECParser):

2008-09-09  Sam Weinig  <sam@webkit.org>

        Reviewed by Cameron Zwarich.

        Don't waste the first item in the PropertyStorage.

        - Fix typo (makingCount -> markingCount)
        - Remove undefined method declaration.

        No change on Sunspider.

        * kjs/JSObject.cpp:
        (JSC::JSObject::mark):
        * kjs/PropertyMap.cpp:
        (JSC::PropertyMap::put):
        (JSC::PropertyMap::remove):
        (JSC::PropertyMap::getOffset):
        (JSC::PropertyMap::insert):
        (JSC::PropertyMap::rehash):
        (JSC::PropertyMap::resizePropertyStorage):
        (JSC::PropertyMap::checkConsistency):
        * kjs/PropertyMap.h:
        (JSC::PropertyMap::markingCount): Fix typo.

2008-09-09  Cameron Zwarich  <cwzwarich@uwaterloo.ca>

        Not reviewed.

        Speculative Windows build fix.

        * masm/MacroAssemblerWin.cpp:
        (JSC::MacroAssembler::emitConvertToFastCall):
        (JSC::MacroAssembler::emitRestoreArgumentReference):

2008-09-09  Cameron Zwarich  <cwzwarich@uwaterloo.ca>

        Reviewed by Maciej Stachowiak.

        Bug 20755: Create an X86 namespace for register names and other things
        <https://bugs.webkit.org/show_bug.cgi?id=20755>

        Create an X86 namespace to put X86 register names. Perhaps I will move
        opcode names here later as well.

        * VM/CTI.cpp:
        (JSC::CTI::emitGetArg):
        (JSC::CTI::emitGetPutArg):
        (JSC::CTI::emitPutArg):
        (JSC::CTI::emitPutArgConstant):
        (JSC::CTI::emitPutCTIParam):
        (JSC::CTI::emitGetCTIParam):
        (JSC::CTI::emitPutToCallFrameHeader):
        (JSC::CTI::emitGetFromCallFrameHeader):
        (JSC::CTI::emitPutResult):
        (JSC::CTI::emitDebugExceptionCheck):
        (JSC::CTI::emitJumpSlowCaseIfNotImms):
        (JSC::CTI::compileOpCall):
        (JSC::CTI::emitSlowScriptCheck):
        (JSC::CTI::privateCompileMainPass):
        (JSC::CTI::privateCompileSlowCases):
        (JSC::CTI::privateCompile):
        (JSC::CTI::privateCompileGetByIdSelf):
        (JSC::CTI::privateCompileGetByIdProto):
        (JSC::CTI::privateCompileGetByIdChain):
        (JSC::CTI::privateCompilePutByIdReplace):
        (JSC::CTI::privateArrayLengthTrampoline):
        (JSC::CTI::privateStringLengthTrampoline):
        (JSC::CTI::compileRegExp):
        * VM/CTI.h:
        * masm/X86Assembler.h:
        (JSC::X86::):
        (JSC::X86Assembler::emitModRm_rm):
        (JSC::X86Assembler::emitModRm_rm_Unchecked):
        (JSC::X86Assembler::emitModRm_rmsib):
        * wrec/WREC.cpp:
        (JSC::WRECGenerator::generateNonGreedyQuantifier):
        (JSC::WRECGenerator::generateGreedyQuantifier):
        (JSC::WRECGenerator::generateParentheses):
        (JSC::WRECGenerator::generateBackreference):
        (JSC::WRECGenerator::gernerateDisjunction):
        * wrec/WREC.h:

2008-09-09  Sam Weinig  <sam@webkit.org>

        Reviewed by Geoffrey Garen.

        Remove unnecessary friend declaration.

        * kjs/PropertyMap.h:

2008-09-09  Sam Weinig  <sam@webkit.org>

        Reviewed by Geoffrey Garen.

        Replace uses of PropertyMap::get and PropertyMap::getLocation with
        PropertyMap::getOffset.

        Sunspider reports this as a .6% improvement.

        * JavaScriptCore.exp:
        * kjs/JSObject.cpp:
        (JSC::JSObject::put):
        (JSC::JSObject::deleteProperty):
        (JSC::JSObject::getPropertyAttributes):
        * kjs/JSObject.h:
        (JSC::JSObject::getDirect):
        (JSC::JSObject::getDirectLocation):
        (JSC::JSObject::locationForOffset):
        * kjs/PropertyMap.cpp:
        (JSC::PropertyMap::remove):
        (JSC::PropertyMap::getOffset):
        * kjs/PropertyMap.h:

2008-09-09  Cameron Zwarich  <cwzwarich@uwaterloo.ca>

        Reviewed by Sam Weinig.

        Bug 20754: Remove emit prefix from assembler opcode methods
        <https://bugs.webkit.org/show_bug.cgi?id=20754>

        * VM/CTI.cpp:
        (JSC::CTI::emitGetArg):
        (JSC::CTI::emitGetPutArg):
        (JSC::CTI::emitPutArg):
        (JSC::CTI::emitPutArgConstant):
        (JSC::CTI::emitPutCTIParam):
        (JSC::CTI::emitGetCTIParam):
        (JSC::CTI::emitPutToCallFrameHeader):
        (JSC::CTI::emitGetFromCallFrameHeader):
        (JSC::CTI::emitPutResult):
        (JSC::CTI::emitDebugExceptionCheck):
        (JSC::CTI::emitCall):
        (JSC::CTI::emitJumpSlowCaseIfNotImm):
        (JSC::CTI::emitJumpSlowCaseIfNotImms):
        (JSC::CTI::emitFastArithDeTagImmediate):
        (JSC::CTI::emitFastArithReTagImmediate):
        (JSC::CTI::emitFastArithPotentiallyReTagImmediate):
        (JSC::CTI::emitFastArithImmToInt):
        (JSC::CTI::emitFastArithIntToImmOrSlowCase):
        (JSC::CTI::emitFastArithIntToImmNoCheck):
        (JSC::CTI::compileOpCall):
        (JSC::CTI::emitSlowScriptCheck):
        (JSC::CTI::privateCompileMainPass):
        (JSC::CTI::privateCompileSlowCases):
        (JSC::CTI::privateCompile):
        (JSC::CTI::privateCompileGetByIdSelf):
        (JSC::CTI::privateCompileGetByIdProto):
        (JSC::CTI::privateCompileGetByIdChain):
        (JSC::CTI::privateCompilePutByIdReplace):
        (JSC::CTI::privateArrayLengthTrampoline):
        (JSC::CTI::privateStringLengthTrampoline):
        (JSC::CTI::compileRegExp):
        * masm/MacroAssemblerWin.cpp:
        (JSC::MacroAssembler::emitConvertToFastCall):
        (JSC::MacroAssembler::emitRestoreArgumentReference):
        * masm/X86Assembler.h:
        (JSC::X86Assembler::pushl_r):
        (JSC::X86Assembler::pushl_m):
        (JSC::X86Assembler::popl_r):
        (JSC::X86Assembler::popl_m):
        (JSC::X86Assembler::movl_rr):
        (JSC::X86Assembler::addl_rr):
        (JSC::X86Assembler::addl_i8r):
        (JSC::X86Assembler::addl_i32r):
        (JSC::X86Assembler::addl_mr):
        (JSC::X86Assembler::andl_rr):
        (JSC::X86Assembler::andl_i32r):
        (JSC::X86Assembler::cmpl_i8r):
        (JSC::X86Assembler::cmpl_rr):
        (JSC::X86Assembler::cmpl_rm):
        (JSC::X86Assembler::cmpl_i32r):
        (JSC::X86Assembler::cmpl_i32m):
        (JSC::X86Assembler::cmpw_rm):
        (JSC::X86Assembler::orl_rr):
        (JSC::X86Assembler::subl_rr):
        (JSC::X86Assembler::subl_i8r):
        (JSC::X86Assembler::subl_i32r):
        (JSC::X86Assembler::subl_mr):
        (JSC::X86Assembler::testl_i32r):
        (JSC::X86Assembler::testl_rr):
        (JSC::X86Assembler::xorl_i8r):
        (JSC::X86Assembler::xorl_rr):
        (JSC::X86Assembler::sarl_i8r):
        (JSC::X86Assembler::sarl_CLr):
        (JSC::X86Assembler::shl_i8r):
        (JSC::X86Assembler::shll_CLr):
        (JSC::X86Assembler::mull_rr):
        (JSC::X86Assembler::idivl_r):
        (JSC::X86Assembler::cdq):
        (JSC::X86Assembler::movl_mr):
        (JSC::X86Assembler::movzwl_mr):
        (JSC::X86Assembler::movl_rm):
        (JSC::X86Assembler::movl_i32r):
        (JSC::X86Assembler::movl_i32m):
        (JSC::X86Assembler::leal_mr):
        (JSC::X86Assembler::ret):
        (JSC::X86Assembler::jmp_r):
        (JSC::X86Assembler::jmp_m):
        (JSC::X86Assembler::call_r):
        * wrec/WREC.cpp:
        (JSC::WRECGenerator::generateBacktrack1):
        (JSC::WRECGenerator::generateBacktrackBackreference):
        (JSC::WRECGenerator::generateBackreferenceQuantifier):
        (JSC::WRECGenerator::generateNonGreedyQuantifier):
        (JSC::WRECGenerator::generateGreedyQuantifier):
        (JSC::WRECGenerator::generatePatternCharacter):
        (JSC::WRECGenerator::generateCharacterClassInvertedRange):
        (JSC::WRECGenerator::generateCharacterClassInverted):
        (JSC::WRECGenerator::generateCharacterClass):
        (JSC::WRECGenerator::generateParentheses):
        (JSC::WRECGenerator::gererateParenthesesResetTrampoline):
        (JSC::WRECGenerator::generateAssertionBOL):
        (JSC::WRECGenerator::generateAssertionEOL):
        (JSC::WRECGenerator::generateAssertionWordBoundary):
        (JSC::WRECGenerator::generateBackreference):
        (JSC::WRECGenerator::gernerateDisjunction):

2008-09-09  Cameron Zwarich  <cwzwarich@uwaterloo.ca>

        Reviewed by Maciej Stachowiak.

        Clean up the WREC code some more.

        * VM/CTI.cpp:
        (JSC::CTI::compileRegExp):
        * wrec/WREC.cpp:
        (JSC::getCharacterClassNewline):
        (JSC::getCharacterClassDigits):
        (JSC::getCharacterClassSpaces):
        (JSC::getCharacterClassWordchar):
        (JSC::getCharacterClassNondigits):
        (JSC::getCharacterClassNonspaces):
        (JSC::getCharacterClassNonwordchar):
        (JSC::WRECGenerator::generateBacktrack1):
        (JSC::WRECGenerator::generateBacktrackBackreference):
        (JSC::WRECGenerator::generateBackreferenceQuantifier):
        (JSC::WRECGenerator::generateNonGreedyQuantifier):
        (JSC::WRECGenerator::generateGreedyQuantifier):
        (JSC::WRECGenerator::generatePatternCharacter):
        (JSC::WRECGenerator::generateCharacterClassInvertedRange):
        (JSC::WRECGenerator::generateCharacterClassInverted):
        (JSC::WRECGenerator::generateCharacterClass):
        (JSC::WRECGenerator::generateParentheses):
        (JSC::WRECGenerator::gererateParenthesesResetTrampoline):
        (JSC::WRECGenerator::generateAssertionBOL):
        (JSC::WRECGenerator::generateAssertionEOL):
        (JSC::WRECGenerator::generateAssertionWordBoundary):
        (JSC::WRECGenerator::generateBackreference):
        (JSC::WRECGenerator::gernerateDisjunction):
        (JSC::WRECParser::parseCharacterClass):
        (JSC::WRECParser::parseEscape):
        (JSC::WRECParser::parseTerm):
        * wrec/WREC.h:

2008-09-09  Mark Rowe  <mrowe@apple.com>

        Build fix, rubber-stamped by Anders Carlsson.

        Silence spurious build warnings about missing format attributes on functions in Assertions.cpp.

        * JavaScriptCore.xcodeproj/project.pbxproj:

2008-09-09  Mark Rowe  <mrowe@apple.com>

        Rubber-stamped by Oliver Hunt.

        Fix builds using the "debug" variant.

        This reverts r36130 and tweaks Identifier to export the same symbols for Debug
        and Release configurations.

        * Configurations/JavaScriptCore.xcconfig:
        * DerivedSources.make:
        * JavaScriptCore.Debug.exp: Removed.
        * JavaScriptCore.base.exp: Removed.
        * JavaScriptCore.exp: Added.
        * JavaScriptCore.xcodeproj/project.pbxproj:
        * kjs/identifier.cpp:
        (JSC::Identifier::addSlowCase): #ifdef the call to checkSameIdentifierTable so that
        there is no overhead in Release builds.
        (JSC::Identifier::checkSameIdentifierTable): Add empty functions for Release builds.
        * kjs/identifier.h:
        (JSC::Identifier::add): #ifdef the calls to checkSameIdentifierTable so that there is
        no overhead in Release builds, and remove the inline definitions of checkSameIdentifierTable.

2008-09-09  Cameron Zwarich  <cwzwarich@uwaterloo.ca>

        Reviewed by Maciej Stachowiak.

        Clean up WREC a bit to bring it closer to our coding style guidelines.

        * wrec/WREC.cpp:
        (JSC::):
        (JSC::getCharacterClass_newline):
        (JSC::getCharacterClass_d):
        (JSC::getCharacterClass_s):
        (JSC::getCharacterClass_w):
        (JSC::getCharacterClass_D):
        (JSC::getCharacterClass_S):
        (JSC::getCharacterClass_W):
        (JSC::CharacterClassConstructor::append):
        (JSC::WRECGenerator::generateNonGreedyQuantifier):
        (JSC::WRECGenerator::generateGreedyQuantifier):
        (JSC::WRECGenerator::generateCharacterClassInverted):
        (JSC::WRECParser::parseQuantifier):
        (JSC::WRECParser::parsePatternCharacterQualifier):
        (JSC::WRECParser::parseCharacterClassQuantifier):
        (JSC::WRECParser::parseBackreferenceQuantifier):
        * wrec/WREC.h:
        (JSC::Quantifier::):
        (JSC::Quantifier::Quantifier):

2008-09-09  Jungshik Shin  <jungshik.shin@gmail.com>

        Reviewed by Alexey Proskuryakov.

        Try MIME charset names before trying IANA names 
        ( https://bugs.webkit.org/show_bug.cgi?id=17537 )

        * wtf/StringExtras.h: (strcasecmp): Added.

2008-09-09  Cameron Zwarich  <cwzwarich@uwaterloo.ca>

        Reviewed by Mark Rowe.

        Bug 20719: REGRESSION (r36135-36244): Hangs, then crashes after several seconds
        <https://bugs.webkit.org/show_bug.cgi?id=20719>
        <rdar://problem/6205787>

        Fix a typo in the case-insensitive matching of character patterns.

        * wrec/WREC.cpp:
        (JSC::WRECGenerator::generatePatternCharacter):

2008-09-09  Maciej Stachowiak  <mjs@apple.com>

        Reviewed by Sam Weinig.
        
        - allow polymorphic inline cache to handle Math object functions and possibly other similar things
        
        1.012x speedup on SunSpider.

        * kjs/MathObject.cpp:
        (JSC::MathObject::getOwnPropertySlot):
        * kjs/lookup.cpp:
        (JSC::setUpStaticFunctionSlot):
        * kjs/lookup.h:
        (JSC::getStaticPropertySlot):

2008-09-08  Sam Weinig  <sam@webkit.org>

        Reviewed by Maciej Stachowiak and Oliver Hunt.

        Split storage of properties out of the PropertyMap and into the JSObject
        to allow sharing PropertyMap on the StructureID.  In order to get this
        function correctly, the StructureID's transition mappings were changed to
        transition based on property name and attribute pairs, instead of just
        property name.

        - Removes the single property optimization now that the PropertyMap is shared.
          This will be replaced by in-lining some values on the JSObject.

        This is a wash on Sunspider and a 6.7% win on the v8 test suite.

        * JavaScriptCore.base.exp:
        * VM/CTI.cpp:
        (JSC::CTI::privateCompileGetByIdSelf): Get the storage directly off the JSObject.
        (JSC::CTI::privateCompileGetByIdProto): Ditto.
        (JSC::CTI::privateCompileGetByIdChain): Ditto.
        (JSC::CTI::privateCompilePutByIdReplace): Ditto.
        * kjs/JSObject.cpp:
        (JSC::JSObject::mark): Mark the PropertyStorage.
        (JSC::JSObject::put): Update to get the propertyMap of the StructureID.
        (JSC::JSObject::deleteProperty): Ditto.
        (JSC::JSObject::defineGetter): Return early if the property is already a getter/setter.
        (JSC::JSObject::defineSetter): Ditto.
        (JSC::JSObject::getPropertyAttributes): Update to get the propertyMap of the StructureID
        (JSC::JSObject::getPropertyNames): Ditto.
        (JSC::JSObject::removeDirect): Ditto.
        * kjs/JSObject.h: Remove PropertyMap and add PropertyStorage.
        (JSC::JSObject::propertyStorage): return the PropertyStorage.
        (JSC::JSObject::getDirect): Update to get the propertyMap of the StructureID.
        (JSC::JSObject::getDirectLocation): Ditto.
        (JSC::JSObject::offsetForLocation): Compute location directly.
        (JSC::JSObject::hasCustomProperties): Update to get the propertyMap of the StructureID.
        (JSC::JSObject::hasGetterSetterProperties): Ditto.
        (JSC::JSObject::getDirectOffset): Get by indexing into PropertyStorage.
        (JSC::JSObject::putDirectOffset): Put by indexing into PropertyStorage.
        (JSC::JSObject::getOwnPropertySlotForWrite): Update to get the propertyMap of the StructureID.
        (JSC::JSObject::getOwnPropertySlot): Ditto.
        (JSC::JSObject::putDirect): Move putting into the StructureID unless the property already exists.
        * kjs/PropertyMap.cpp: Use the propertyStorage as the storage for the JSValues.
        (JSC::PropertyMap::checkConsistency): 
        (JSC::PropertyMap::operator=):
        (JSC::PropertyMap::~PropertyMap):
        (JSC::PropertyMap::get):
        (JSC::PropertyMap::getLocation):
        (JSC::PropertyMap::put):
        (JSC::PropertyMap::getOffset):
        (JSC::PropertyMap::insert):
        (JSC::PropertyMap::expand):
        (JSC::PropertyMap::rehash):
        (JSC::PropertyMap::createTable):
        (JSC::PropertyMap::resizePropertyStorage): Resize the storage to match the size of the map
        (JSC::PropertyMap::remove):
        (JSC::PropertyMap::getEnumerablePropertyNames):
        * kjs/PropertyMap.h: 
        (JSC::PropertyMapEntry::PropertyMapEntry):
        (JSC::PropertyMap::isEmpty):
        (JSC::PropertyMap::size):
        (JSC::PropertyMap::makingCount):
        (JSC::PropertyMap::PropertyMap):

        * kjs/StructureID.cpp: 
        (JSC::StructureID::addPropertyTransition): Transitions now are based off the property name
        and attributes. 
        (JSC::StructureID::toDictionaryTransition): Copy the map.
        (JSC::StructureID::changePrototypeTransition): Copy the map.
        (JSC::StructureID::getterSetterTransition): Copy the map.
        (JSC::StructureID::~StructureID): 
        * kjs/StructureID.h:
        (JSC::TransitionTableHash::hash): Custom hash for transition map.
        (JSC::TransitionTableHash::equal): Ditto.
        (JSC::TransitionTableHashTraits::emptyValue): Custom traits for transition map
        (JSC::TransitionTableHashTraits::constructDeletedValue): Ditto.
        (JSC::TransitionTableHashTraits::isDeletedValue): Ditto.
        (JSC::StructureID::propertyMap): Added.

2008-09-08  Oliver Hunt  <oliver@apple.com>

        Reviewed by Mark Rowe.

        Bug 20694: Slow Script error pops up when running Dromaeo tests

        Correct error in timeout logic where execution tick count would
        be reset to incorrect value due to incorrect offset and indirection.
        Codegen for the slow script dialog was factored out into a separate
        method (emitSlowScriptCheck) rather than having multiple copies of
        the same code.  Also added calls to generate slow script checks
        for loop_if_less and loop_if_true opcodes.

        * VM/CTI.cpp:
        (JSC::CTI::emitSlowScriptCheck):
        (JSC::CTI::privateCompileMainPass):
        (JSC::CTI::privateCompileSlowCases):
        * VM/CTI.h:

2008-09-08  Cameron Zwarich  <cwzwarich@uwaterloo.ca>

        Reviewed by Maciej Stachowiak.

        Remove references to the removed WRECompiler class.

        * VM/Machine.h:
        * wrec/WREC.h:

2008-09-08  Cameron Zwarich  <cwzwarich@uwaterloo.ca>

        Rubber-stamped by Mark Rowe.

        Fix the build with CTI enabled but WREC disabled.

        * VM/CTI.cpp:
        * VM/CTI.h:

2008-09-08  Dan Bernstein  <mitz@apple.com>

        - build fix

        * kjs/nodes.h:
        (JSC::StatementNode::):
        (JSC::BlockNode::):

2008-09-08  Kevin McCullough  <kmccullough@apple.com>

        Reviewed by Geoff.

       <rdar://problem/6134407> Breakpoints in for loops, while loops or
       conditions without curly braces don't break. (19306)
       -Statement Lists already emit debug hooks but conditionals without
       brackets are not lists.

        * kjs/nodes.cpp:
        (KJS::IfNode::emitCode):
        (KJS::IfElseNode::emitCode):
        (KJS::DoWhileNode::emitCode):
        (KJS::WhileNode::emitCode):
        (KJS::ForNode::emitCode):
        (KJS::ForInNode::emitCode):
        * kjs/nodes.h:
        (KJS::StatementNode::):
        (KJS::BlockNode::):

2008-09-08  Maciej Stachowiak  <mjs@apple.com>

        Reviewed by Anders Carlsson.
        
        - Cache the code generated for eval to speed up SunSpider and web sites
        https://bugs.webkit.org/show_bug.cgi?id=20718
        
        1.052x on SunSpider
        2.29x on date-format-tofte
        
        Lots of real sites seem to get many hits on this cache as well,
        including GMail, Google Spreadsheets, Slate and Digg (the last of
        these gets over 100 hits on initial page load).

        * VM/CodeBlock.h:
        (JSC::EvalCodeCache::get):
        * VM/Machine.cpp:
        (JSC::Machine::callEval):
        (JSC::Machine::privateExecute):
        (JSC::Machine::cti_op_call_eval):
        * VM/Machine.h:

2008-09-07  Cameron Zwarich  <cwzwarich@uwaterloo.ca>

        Reviewed by Oliver Hunt.

        Bug 20711: Change KJS prefix on preprocessor macros to JSC
        <https://bugs.webkit.org/show_bug.cgi?id=20711>

        * kjs/CommonIdentifiers.cpp:
        (JSC::CommonIdentifiers::CommonIdentifiers):
        * kjs/CommonIdentifiers.h:
        * kjs/PropertySlot.h:
        (JSC::PropertySlot::getValue):
        (JSC::PropertySlot::putValue):
        (JSC::PropertySlot::setValueSlot):
        (JSC::PropertySlot::setValue):
        (JSC::PropertySlot::setRegisterSlot):
        * kjs/lookup.h:
        * kjs/nodes.cpp:
        * kjs/nodes.h:
        (JSC::Node::):
        (JSC::ExpressionNode::):
        (JSC::StatementNode::):
        (JSC::NullNode::):
        (JSC::BooleanNode::):
        (JSC::NumberNode::):
        (JSC::ImmediateNumberNode::):
        (JSC::StringNode::):
        (JSC::RegExpNode::):
        (JSC::ThisNode::):
        (JSC::ResolveNode::):
        (JSC::ElementNode::):
        (JSC::ArrayNode::):
        (JSC::PropertyNode::):
        (JSC::PropertyListNode::):
        (JSC::ObjectLiteralNode::):
        (JSC::BracketAccessorNode::):
        (JSC::DotAccessorNode::):
        (JSC::ArgumentListNode::):
        (JSC::ArgumentsNode::):
        (JSC::NewExprNode::):
        (JSC::EvalFunctionCallNode::):
        (JSC::FunctionCallValueNode::):
        (JSC::FunctionCallResolveNode::):
        (JSC::FunctionCallBracketNode::):
        (JSC::FunctionCallDotNode::):
        (JSC::PrePostResolveNode::):
        (JSC::PostfixResolveNode::):
        (JSC::PostfixBracketNode::):
        (JSC::PostfixDotNode::):
        (JSC::PostfixErrorNode::):
        (JSC::DeleteResolveNode::):
        (JSC::DeleteBracketNode::):
        (JSC::DeleteDotNode::):
        (JSC::DeleteValueNode::):
        (JSC::VoidNode::):
        (JSC::TypeOfResolveNode::):
        (JSC::TypeOfValueNode::):
        (JSC::PrefixResolveNode::):
        (JSC::PrefixBracketNode::):
        (JSC::PrefixDotNode::):
        (JSC::PrefixErrorNode::):
        (JSC::UnaryPlusNode::):
        (JSC::NegateNode::):
        (JSC::BitwiseNotNode::):
        (JSC::LogicalNotNode::):
        (JSC::MultNode::):
        (JSC::DivNode::):
        (JSC::ModNode::):
        (JSC::AddNode::):
        (JSC::SubNode::):
        (JSC::LeftShiftNode::):
        (JSC::RightShiftNode::):
        (JSC::UnsignedRightShiftNode::):
        (JSC::LessNode::):
        (JSC::GreaterNode::):
        (JSC::LessEqNode::):
        (JSC::GreaterEqNode::):
        (JSC::ThrowableBinaryOpNode::):
        (JSC::InstanceOfNode::):
        (JSC::InNode::):
        (JSC::EqualNode::):
        (JSC::NotEqualNode::):
        (JSC::StrictEqualNode::):
        (JSC::NotStrictEqualNode::):
        (JSC::BitAndNode::):
        (JSC::BitOrNode::):
        (JSC::BitXOrNode::):
        (JSC::LogicalOpNode::):
        (JSC::ConditionalNode::):
        (JSC::ReadModifyResolveNode::):
        (JSC::AssignResolveNode::):
        (JSC::ReadModifyBracketNode::):
        (JSC::AssignBracketNode::):
        (JSC::AssignDotNode::):
        (JSC::ReadModifyDotNode::):
        (JSC::AssignErrorNode::):
        (JSC::CommaNode::):
        (JSC::VarDeclCommaNode::):
        (JSC::ConstDeclNode::):
        (JSC::ConstStatementNode::):
        (JSC::EmptyStatementNode::):
        (JSC::DebuggerStatementNode::):
        (JSC::ExprStatementNode::):
        (JSC::VarStatementNode::):
        (JSC::IfNode::):
        (JSC::IfElseNode::):
        (JSC::DoWhileNode::):
        (JSC::WhileNode::):
        (JSC::ForNode::):
        (JSC::ContinueNode::):
        (JSC::BreakNode::):
        (JSC::ReturnNode::):
        (JSC::WithNode::):
        (JSC::LabelNode::):
        (JSC::ThrowNode::):
        (JSC::TryNode::):
        (JSC::ParameterNode::):
        (JSC::ScopeNode::):
        (JSC::ProgramNode::):
        (JSC::EvalNode::):
        (JSC::FunctionBodyNode::):
        (JSC::FuncExprNode::):
        (JSC::FuncDeclNode::):
        (JSC::CaseClauseNode::):
        (JSC::ClauseListNode::):
        (JSC::CaseBlockNode::):
        (JSC::SwitchNode::):

2008-09-07  Cameron Zwarich  <cwzwarich@uwaterloo.ca>

        Reviewed by Maciej Stachowiak.

        Bug 20704: Replace the KJS namespace
        <https://bugs.webkit.org/show_bug.cgi?id=20704>

        Rename the KJS namespace to JSC. There are still some uses of KJS in
        preprocessor macros and comments, but these will also be changed some
        time in the near future.

        * API/APICast.h:
        (toJS):
        (toRef):
        (toGlobalRef):
        * API/JSBase.cpp:
        * API/JSCallbackConstructor.cpp:
        * API/JSCallbackConstructor.h:
        * API/JSCallbackFunction.cpp:
        * API/JSCallbackFunction.h:
        * API/JSCallbackObject.cpp:
        * API/JSCallbackObject.h:
        * API/JSCallbackObjectFunctions.h:
        * API/JSClassRef.cpp:
        (OpaqueJSClass::staticValues):
        (OpaqueJSClass::staticFunctions):
        * API/JSClassRef.h:
        * API/JSContextRef.cpp:
        * API/JSObjectRef.cpp:
        * API/JSProfilerPrivate.cpp:
        * API/JSStringRef.cpp:
        * API/JSValueRef.cpp:
        (JSValueGetType):
        * API/OpaqueJSString.cpp:
        * API/OpaqueJSString.h:
        * JavaScriptCore.Debug.exp:
        * JavaScriptCore.base.exp:
        * VM/CTI.cpp:
        (JSC::):
        * VM/CTI.h:
        * VM/CodeBlock.cpp:
        * VM/CodeBlock.h:
        * VM/CodeGenerator.cpp:
        * VM/CodeGenerator.h:
        * VM/ExceptionHelpers.cpp:
        * VM/ExceptionHelpers.h:
        * VM/Instruction.h:
        * VM/JSPropertyNameIterator.cpp:
        * VM/JSPropertyNameIterator.h:
        * VM/LabelID.h:
        * VM/Machine.cpp:
        * VM/Machine.h:
        * VM/Opcode.cpp:
        * VM/Opcode.h:
        * VM/Register.h:
        (WTF::):
        * VM/RegisterFile.cpp:
        * VM/RegisterFile.h:
        * VM/RegisterID.h:
        (WTF::):
        * VM/SamplingTool.cpp:
        * VM/SamplingTool.h:
        * VM/SegmentedVector.h:
        * kjs/ArgList.cpp:
        * kjs/ArgList.h:
        * kjs/Arguments.cpp:
        * kjs/Arguments.h:
        * kjs/ArrayConstructor.cpp:
        * kjs/ArrayConstructor.h:
        * kjs/ArrayPrototype.cpp:
        * kjs/ArrayPrototype.h:
        * kjs/BatchedTransitionOptimizer.h:
        * kjs/BooleanConstructor.cpp:
        * kjs/BooleanConstructor.h:
        * kjs/BooleanObject.cpp:
        * kjs/BooleanObject.h:
        * kjs/BooleanPrototype.cpp:
        * kjs/BooleanPrototype.h:
        * kjs/CallData.cpp:
        * kjs/CallData.h:
        * kjs/ClassInfo.h:
        * kjs/CommonIdentifiers.cpp:
        * kjs/CommonIdentifiers.h:
        * kjs/ConstructData.cpp:
        * kjs/ConstructData.h:
        * kjs/DateConstructor.cpp:
        * kjs/DateConstructor.h:
        * kjs/DateInstance.cpp:
        (JSC::DateInstance::msToGregorianDateTime):
        * kjs/DateInstance.h:
        * kjs/DateMath.cpp:
        * kjs/DateMath.h:
        * kjs/DatePrototype.cpp:
        * kjs/DatePrototype.h:
        * kjs/DebuggerCallFrame.cpp:
        * kjs/DebuggerCallFrame.h:
        * kjs/Error.cpp:
        * kjs/Error.h:
        * kjs/ErrorConstructor.cpp:
        * kjs/ErrorConstructor.h:
        * kjs/ErrorInstance.cpp:
        * kjs/ErrorInstance.h:
        * kjs/ErrorPrototype.cpp:
        * kjs/ErrorPrototype.h:
        * kjs/ExecState.cpp:
        * kjs/ExecState.h:
        * kjs/FunctionConstructor.cpp:
        * kjs/FunctionConstructor.h:
        * kjs/FunctionPrototype.cpp:
        * kjs/FunctionPrototype.h:
        * kjs/GetterSetter.cpp:
        * kjs/GetterSetter.h:
        * kjs/GlobalEvalFunction.cpp:
        * kjs/GlobalEvalFunction.h:
        * kjs/IndexToNameMap.cpp:
        * kjs/IndexToNameMap.h:
        * kjs/InitializeThreading.cpp:
        * kjs/InitializeThreading.h:
        * kjs/InternalFunction.cpp:
        * kjs/InternalFunction.h:
        (JSC::InternalFunction::InternalFunction):
        * kjs/JSActivation.cpp:
        * kjs/JSActivation.h:
        * kjs/JSArray.cpp:
        * kjs/JSArray.h:
        * kjs/JSCell.cpp:
        * kjs/JSCell.h:
        * kjs/JSFunction.cpp:
        * kjs/JSFunction.h:
        (JSC::JSFunction::JSFunction):
        * kjs/JSGlobalData.cpp:
        (JSC::JSGlobalData::JSGlobalData):
        * kjs/JSGlobalData.h:
        * kjs/JSGlobalObject.cpp:
        * kjs/JSGlobalObject.h:
        * kjs/JSGlobalObjectFunctions.cpp:
        * kjs/JSGlobalObjectFunctions.h:
        * kjs/JSImmediate.cpp:
        * kjs/JSImmediate.h:
        * kjs/JSLock.cpp:
        * kjs/JSLock.h:
        * kjs/JSNotAnObject.cpp:
        * kjs/JSNotAnObject.h:
        * kjs/JSNumberCell.cpp:
        * kjs/JSNumberCell.h:
        * kjs/JSObject.cpp:
        * kjs/JSObject.h:
        * kjs/JSStaticScopeObject.cpp:
        * kjs/JSStaticScopeObject.h:
        * kjs/JSString.cpp:
        * kjs/JSString.h:
        * kjs/JSType.h:
        * kjs/JSValue.cpp:
        * kjs/JSValue.h:
        * kjs/JSVariableObject.cpp:
        * kjs/JSVariableObject.h:
        * kjs/JSWrapperObject.cpp:
        * kjs/JSWrapperObject.h:
        * kjs/LabelStack.cpp:
        * kjs/LabelStack.h:
        * kjs/MathObject.cpp:
        * kjs/MathObject.h:
        * kjs/NativeErrorConstructor.cpp:
        * kjs/NativeErrorConstructor.h:
        * kjs/NativeErrorPrototype.cpp:
        * kjs/NativeErrorPrototype.h:
        * kjs/NodeInfo.h:
        * kjs/NumberConstructor.cpp:
        * kjs/NumberConstructor.h:
        * kjs/NumberObject.cpp:
        * kjs/NumberObject.h:
        * kjs/NumberPrototype.cpp:
        * kjs/NumberPrototype.h:
        * kjs/ObjectConstructor.cpp:
        * kjs/ObjectConstructor.h:
        * kjs/ObjectPrototype.cpp:
        * kjs/ObjectPrototype.h:
        * kjs/Parser.cpp:
        * kjs/Parser.h:
        * kjs/PropertyMap.cpp:
        (JSC::PropertyMapStatisticsExitLogger::~PropertyMapStatisticsExitLogger):
        * kjs/PropertyMap.h:
        * kjs/PropertyNameArray.cpp:
        * kjs/PropertyNameArray.h:
        * kjs/PropertySlot.cpp:
        * kjs/PropertySlot.h:
        * kjs/PrototypeFunction.cpp:
        * kjs/PrototypeFunction.h:
        * kjs/PutPropertySlot.h:
        * kjs/RegExpConstructor.cpp:
        * kjs/RegExpConstructor.h:
        * kjs/RegExpObject.cpp:
        * kjs/RegExpObject.h:
        * kjs/RegExpPrototype.cpp:
        * kjs/RegExpPrototype.h:
        * kjs/ScopeChain.cpp:
        * kjs/ScopeChain.h:
        * kjs/ScopeChainMark.h:
        * kjs/Shell.cpp:
        (jscmain):
        * kjs/SmallStrings.cpp:
        * kjs/SmallStrings.h:
        * kjs/SourceProvider.h:
        * kjs/SourceRange.h:
        * kjs/StringConstructor.cpp:
        * kjs/StringConstructor.h:
        * kjs/StringObject.cpp:
        * kjs/StringObject.h:
        * kjs/StringObjectThatMasqueradesAsUndefined.h:
        * kjs/StringPrototype.cpp:
        * kjs/StringPrototype.h:
        * kjs/StructureID.cpp:
        * kjs/StructureID.h:
        * kjs/SymbolTable.h:
        * kjs/collector.cpp:
        * kjs/collector.h:
        * kjs/completion.h:
        * kjs/create_hash_table:
        * kjs/debugger.cpp:
        * kjs/debugger.h:
        * kjs/dtoa.cpp:
        * kjs/dtoa.h:
        * kjs/grammar.y:
        * kjs/identifier.cpp:
        * kjs/identifier.h:
        (JSC::Identifier::equal):
        * kjs/interpreter.cpp:
        * kjs/interpreter.h:
        * kjs/lexer.cpp:
        (JSC::Lexer::Lexer):
        (JSC::Lexer::clear):
        (JSC::Lexer::makeIdentifier):
        * kjs/lexer.h:
        * kjs/lookup.cpp:
        * kjs/lookup.h:
        * kjs/nodes.cpp:
        * kjs/nodes.h:
        * kjs/nodes2string.cpp:
        * kjs/operations.cpp:
        * kjs/operations.h:
        * kjs/protect.h:
        * kjs/regexp.cpp:
        * kjs/regexp.h:
        * kjs/ustring.cpp:
        * kjs/ustring.h:
        (JSC::operator!=):
        (JSC::IdentifierRepHash::hash):
        (WTF::):
        * masm/MacroAssembler.h:
        * masm/MacroAssemblerWin.cpp:
        * masm/X86Assembler.h:
        * pcre/pcre_exec.cpp:
        * profiler/CallIdentifier.h:
        (WTF::):
        * profiler/HeavyProfile.cpp:
        * profiler/HeavyProfile.h:
        * profiler/Profile.cpp:
        * profiler/Profile.h:
        * profiler/ProfileGenerator.cpp:
        * profiler/ProfileGenerator.h:
        * profiler/ProfileNode.cpp:
        * profiler/ProfileNode.h:
        * profiler/Profiler.cpp:
        * profiler/Profiler.h:
        * profiler/TreeProfile.cpp:
        * profiler/TreeProfile.h:
        * wrec/WREC.cpp:
        * wrec/WREC.h:
        * wtf/AVLTree.h:

2008-09-07  Maciej Stachowiak  <mjs@apple.com>

        Reviewed by Dan Bernstein.
        
        - rename IA32MacroAssembler class to X86Assembler
        
        We otherwise call the platform X86, and also, I don't see any macros.

        * JavaScriptCore.vcproj/JavaScriptCore/JavaScriptCore.vcproj:
        * JavaScriptCore.xcodeproj/project.pbxproj:
        * masm/IA32MacroAsm.h: Removed.
        * masm/MacroAssembler.h:
        (KJS::MacroAssembler::MacroAssembler):
        * masm/MacroAssemblerWin.cpp:
        (KJS::MacroAssembler::emitRestoreArgumentReference):
        * masm/X86Assembler.h: Copied from masm/IA32MacroAsm.h.
        (KJS::X86Assembler::X86Assembler):
        * wrec/WREC.cpp:
        (KJS::WRECGenerator::generateNonGreedyQuantifier):
        (KJS::WRECGenerator::generateGreedyQuantifier):
        (KJS::WRECGenerator::generateParentheses):
        (KJS::WRECGenerator::generateBackreference):
        (KJS::WRECGenerator::gernerateDisjunction):
        * wrec/WREC.h:

2008-09-07  Cameron Zwarich  <cwzwarich@webkit.org>

        Not reviewed.

        Visual C++ seems to have some odd casting rules, so just convert the
        offending cast back to a C-style cast for now.

        * kjs/collector.cpp:
        (KJS::otherThreadStackPointer):

2008-09-07  Cameron Zwarich  <cwzwarich@uwaterloo.ca>

        Reviewed by Mark Rowe.

        Attempt to fix the Windows build by using a const_cast to cast regs.Esp
        to a uintptr_t instead of a reinterpret_cast.

        * kjs/collector.cpp:
        (KJS::otherThreadStackPointer):

2008-09-07  Cameron Zwarich  <cwzwarich@uwaterloo.ca>

        Reviewed by Sam Weinig.

        Remove C-style casts from kjs/collector.cpp.

        * kjs/collector.cpp:
        (KJS::Heap::heapAllocate):
        (KJS::currentThreadStackBase):
        (KJS::Heap::markConservatively):
        (KJS::otherThreadStackPointer):
        (KJS::Heap::markOtherThreadConservatively):
        (KJS::Heap::sweep):

2008-09-07  Mark Rowe  <mrowe@apple.com>

        Build fix for the debug variant.

        * DerivedSources.make: Also use the .Debug.exp exports file when building the debug variant.

2008-09-07  Cameron Zwarich  <cwzwarich@uwaterloo.ca>

        Reviewed by Timothy Hatcher.

        Remove C-style casts from the CTI code.

        * VM/CTI.cpp:
        (KJS::CTI::emitGetArg):
        (KJS::CTI::emitGetPutArg):
        (KJS::ctiRepatchCallByReturnAddress):
        (KJS::CTI::compileOpCall):
        (KJS::CTI::privateCompileMainPass):
        (KJS::CTI::privateCompileGetByIdSelf):
        (KJS::CTI::privateCompileGetByIdProto):
        (KJS::CTI::privateCompileGetByIdChain):
        (KJS::CTI::privateCompilePutByIdReplace):
        (KJS::CTI::privateArrayLengthTrampoline):
        (KJS::CTI::privateStringLengthTrampoline):

=== End merge of squirrelfish-extreme ===

2008-09-06  Gavin Barraclough  <barraclough@apple.com>

        Reviewed by Sam Weinig. Adapted somewhat by Maciej Stachowiak.
        
        - refactor WREC to share more of the JIT infrastructure with CTI

        * VM/CTI.cpp:
        (KJS::CTI::emitGetArg):
        (KJS::CTI::emitGetPutArg):
        (KJS::CTI::emitPutArg):
        (KJS::CTI::emitPutArgConstant):
        (KJS::CTI::emitPutCTIParam):
        (KJS::CTI::emitGetCTIParam):
        (KJS::CTI::emitPutToCallFrameHeader):
        (KJS::CTI::emitGetFromCallFrameHeader):
        (KJS::CTI::emitPutResult):
        (KJS::CTI::emitDebugExceptionCheck):
        (KJS::CTI::emitJumpSlowCaseIfNotImm):
        (KJS::CTI::emitJumpSlowCaseIfNotImms):
        (KJS::CTI::emitFastArithDeTagImmediate):
        (KJS::CTI::emitFastArithReTagImmediate):
        (KJS::CTI::emitFastArithPotentiallyReTagImmediate):
        (KJS::CTI::emitFastArithImmToInt):
        (KJS::CTI::emitFastArithIntToImmOrSlowCase):
        (KJS::CTI::emitFastArithIntToImmNoCheck):
        (KJS::CTI::CTI):
        (KJS::CTI::compileOpCall):
        (KJS::CTI::privateCompileMainPass):
        (KJS::CTI::privateCompileSlowCases):
        (KJS::CTI::privateCompile):
        (KJS::CTI::privateCompileGetByIdSelf):
        (KJS::CTI::privateCompileGetByIdProto):
        (KJS::CTI::privateCompileGetByIdChain):
        (KJS::CTI::privateCompilePutByIdReplace):
        (KJS::CTI::privateArrayLengthTrampoline):
        (KJS::CTI::privateStringLengthTrampoline):
        (KJS::CTI::compileRegExp):
        * VM/CTI.h:
        (KJS::CallRecord::CallRecord):
        (KJS::JmpTable::JmpTable):
        (KJS::SlowCaseEntry::SlowCaseEntry):
        (KJS::CTI::JSRInfo::JSRInfo):
        * kjs/regexp.cpp:
        (KJS::RegExp::RegExp):
        * wrec/WREC.cpp:
        (KJS::GenerateParenthesesNonGreedyFunctor::GenerateParenthesesNonGreedyFunctor):
        (KJS::GeneratePatternCharacterFunctor::generateAtom):
        (KJS::GeneratePatternCharacterFunctor::backtrack):
        (KJS::GenerateCharacterClassFunctor::generateAtom):
        (KJS::GenerateCharacterClassFunctor::backtrack):
        (KJS::GenerateBackreferenceFunctor::generateAtom):
        (KJS::GenerateBackreferenceFunctor::backtrack):
        (KJS::GenerateParenthesesNonGreedyFunctor::generateAtom):
        (KJS::GenerateParenthesesNonGreedyFunctor::backtrack):
        (KJS::WRECGenerate::generateBacktrack1):
        (KJS::WRECGenerate::generateBacktrackBackreference):
        (KJS::WRECGenerate::generateBackreferenceQuantifier):
        (KJS::WRECGenerate::generateNonGreedyQuantifier):
        (KJS::WRECGenerate::generateGreedyQuantifier):
        (KJS::WRECGenerate::generatePatternCharacter):
        (KJS::WRECGenerate::generateCharacterClassInvertedRange):
        (KJS::WRECGenerate::generateCharacterClassInverted):
        (KJS::WRECGenerate::generateCharacterClass):
        (KJS::WRECGenerate::generateParentheses):
        (KJS::WRECGenerate::generateParenthesesNonGreedy):
        (KJS::WRECGenerate::gererateParenthesesResetTrampoline):
        (KJS::WRECGenerate::generateAssertionBOL):
        (KJS::WRECGenerate::generateAssertionEOL):
        (KJS::WRECGenerate::generateAssertionWordBoundary):
        (KJS::WRECGenerate::generateBackreference):
        (KJS::WRECGenerate::gernerateDisjunction):
        (KJS::WRECGenerate::terminateDisjunction):
        (KJS::WRECParser::parseGreedyQuantifier):
        (KJS::WRECParser::parseQuantifier):
        (KJS::WRECParser::parsePatternCharacterQualifier):
        (KJS::WRECParser::parseCharacterClassQuantifier):
        (KJS::WRECParser::parseBackreferenceQuantifier):
        (KJS::WRECParser::parseParentheses):
        (KJS::WRECParser::parseCharacterClass):
        (KJS::WRECParser::parseOctalEscape):
        (KJS::WRECParser::parseEscape):
        (KJS::WRECParser::parseTerm):
        (KJS::WRECParser::parseDisjunction):
        * wrec/WREC.h:
        (KJS::WRECGenerate::WRECGenerate):
        (KJS::WRECParser::):
        (KJS::WRECParser::WRECParser):
        (KJS::WRECParser::parseAlternative):
        (KJS::WRECParser::isEndOfPattern):

2008-09-06  Oliver Hunt  <oliver@apple.com>

        Reviewed by NOBODY (Build fix).

        Fix the sampler build.

        * VM/SamplingTool.h:

2008-09-06  Oliver Hunt  <oliver@apple.com>

        Reviewed by Maciej Stachowiak.

        Jump through the necessary hoops required to make MSVC cooperate with SFX

        We now explicitly declare the calling convention on all cti_op_* cfunctions,
        and return int instead of bool where appropriate (despite the cdecl calling
        convention seems to state MSVC generates code that returns the result value
        through ecx).  SFX behaves slightly differently under MSVC, specifically it
        stores the base argument address for the cti_op_* functions in the first
        argument, and then does the required stack manipulation through that pointer.
        This is necessary as MSVC's optimisations assume they have complete control
        of the stack, and periodically elide our stack manipulations, or move
        values in unexpected ways.  MSVC also frequently produces tail calls which may
        clobber the first argument, so the MSVC path is slightly less efficient due
        to the need to restore it.

        * JavaScriptCore.xcodeproj/project.pbxproj:
        * VM/CTI.cpp:
        (KJS::):
        (KJS::CTI::compileOpCall):
        (KJS::CTI::privateCompileMainPass):
        (KJS::CTI::privateCompileSlowCases):
        * VM/CTI.h:
        * VM/Machine.cpp:
        * VM/Machine.h:
        * masm/MacroAssembler.h:
        (KJS::MacroAssembler::emitConvertToFastCall):
        * masm/MacroAssemblerIA32GCC.cpp: Removed.
           For performance reasons we need these no-op functions to be inlined.

        * masm/MacroAssemblerWin.cpp:
        (KJS::MacroAssembler::emitRestoreArgumentReference):
        * wtf/Platform.h:

2008-09-05  Geoffrey Garen  <ggaren@apple.com>

        Reviewed by Maciej Stachowiak, or maybe the other way around.
        
        Added the ability to coalesce JITCode buffer grow operations by first
        growing the buffer and then executing unchecked puts to it.
        
        About a 2% speedup on date-format-tofte.

        * VM/CTI.cpp:
        (KJS::CTI::compileOpCall):
        * masm/IA32MacroAsm.h:
        (KJS::JITCodeBuffer::ensureSpace):
        (KJS::JITCodeBuffer::putByteUnchecked):
        (KJS::JITCodeBuffer::putByte):
        (KJS::JITCodeBuffer::putShortUnchecked):
        (KJS::JITCodeBuffer::putShort):
        (KJS::JITCodeBuffer::putIntUnchecked):
        (KJS::JITCodeBuffer::putInt):
        (KJS::IA32MacroAssembler::emitTestl_i32r):
        (KJS::IA32MacroAssembler::emitMovl_mr):
        (KJS::IA32MacroAssembler::emitMovl_rm):
        (KJS::IA32MacroAssembler::emitMovl_i32m):
        (KJS::IA32MacroAssembler::emitUnlinkedJe):
        (KJS::IA32MacroAssembler::emitModRm_rr):
        (KJS::IA32MacroAssembler::emitModRm_rr_Unchecked):
        (KJS::IA32MacroAssembler::emitModRm_rm_Unchecked):
        (KJS::IA32MacroAssembler::emitModRm_rm):
        (KJS::IA32MacroAssembler::emitModRm_opr):
        (KJS::IA32MacroAssembler::emitModRm_opr_Unchecked):
        (KJS::IA32MacroAssembler::emitModRm_opm_Unchecked):

2008-09-05  Mark Rowe  <mrowe@apple.com>

        Reviewed by Sam Weinig.

        Disable WREC and CTI on platforms that we have not yet had a chance to test with.

        * wtf/Platform.h:

2008-09-05  Geoffrey Garen  <ggaren@apple.com>

        Reviewed by Sam Weinig.
        
        Use jo instead of a mask compare when fetching array.length and
        string.length. 4% speedup on array.length / string.length torture
        test.

        * VM/CTI.cpp:
        (KJS::CTI::privateArrayLengthTrampoline):
        (KJS::CTI::privateStringLengthTrampoline):

2008-09-05  Geoffrey Garen  <ggaren@apple.com>

        Reviewed by Sam Weinig.

        Removed a CTI compilation pass by recording labels during bytecode
        generation. This is more to reduce complexity than it is to improve
        performance.

        SunSpider reports no change.

        CodeBlock now keeps a "labels" set, which holds the offsets of all the
        instructions that can be jumped to.

        * VM/CTI.cpp: Nixed a pass.

        * VM/CodeBlock.h: Added a "labels" set.

        * VM/LabelID.h: No need for a special LableID for holding jump
        destinations, since the CodeBlock now knows all jump destinations.

        * wtf/HashTraits.h: New hash traits to accomodate putting offset 0 in
        the set.

        * kjs/nodes.cpp:
        (KJS::TryNode::emitCode): Emit a dummy label to record sret targets.

2008-09-05  Mark Rowe  <mrowe@apple.com>

        Reviewed by Oliver Hunt and Gavin Barraclough.

        Move the JITCodeBuffer onto Machine and remove the static variables.

        * VM/CTI.cpp: Initialize m_jit with the Machine's code buffer.
        * VM/Machine.cpp:
        (KJS::Machine::Machine): Allocate a JITCodeBuffer.
        * VM/Machine.h:
        * kjs/RegExpConstructor.cpp:
        (KJS::constructRegExp): Pass the ExecState through.
        * kjs/RegExpPrototype.cpp:
        (KJS::regExpProtoFuncCompile): Ditto.
        * kjs/StringPrototype.cpp:
        (KJS::stringProtoFuncMatch): Ditto.
        (KJS::stringProtoFuncSearch): Ditto.
        * kjs/nodes.cpp:
        (KJS::RegExpNode::emitCode): Compile the pattern at code generation time
        so that we have access to an ExecState.
        * kjs/nodes.h:
        (KJS::RegExpNode::):
        * kjs/nodes2string.cpp:
        * kjs/regexp.cpp:
        (KJS::RegExp::RegExp): Pass the ExecState through.
        (KJS::RegExp::create): Ditto.
        * kjs/regexp.h:
        * masm/IA32MacroAsm.h:
        (KJS::IA32MacroAssembler::IA32MacroAssembler): Reset the JITCodeBuffer when we are
        constructed.
        * wrec/WREC.cpp:
        (KJS::WRECompiler::compile): Retrieve the JITCodeBuffer from the Machine.
        * wrec/WREC.h:

2008-09-05  Mark Rowe  <mrowe@apple.com>

        Reviewed by Oliver Hunt and Gavin Barraclough.

        Fix the build when CTI is disabled.

        * VM/CodeBlock.cpp:
        (KJS::CodeBlock::~CodeBlock):
        * VM/CodeGenerator.cpp:
        (KJS::prepareJumpTableForStringSwitch):
        * VM/Machine.cpp:
        (KJS::Machine::Machine):
        (KJS::Machine::~Machine):

2008-09-05  Gavin Barraclough  <barraclough@apple.com>

        Reviewed by Mark Rowe.

        Fix some windows abi issues.

        * VM/CTI.cpp:
        (KJS::CTI::privateCompileMainPass):
        (KJS::CTI::privateCompileSlowCases):
        * VM/CTI.h:
        (KJS::CallRecord::CallRecord):
        (KJS::):
        * VM/Machine.cpp:
        (KJS::Machine::cti_op_resolve_func):
        (KJS::Machine::cti_op_post_inc):
        (KJS::Machine::cti_op_resolve_with_base):
        (KJS::Machine::cti_op_post_dec):
        * VM/Machine.h:

2008-09-05  Mark Rowe  <mrowe@apple.com>

        Reviewed by Sam Weinig.

        Fix ecma/FunctionObjects/15.3.5.3.js after I broke it in r93.

        * VM/Machine.cpp:
        (KJS::Machine::cti_op_call_NotJSFunction): Restore m_callFrame to the correct value after making the native call.
        (KJS::Machine::cti_op_construct_NotJSConstruct): Ditto.

2008-09-04  Mark Rowe  <mrowe@apple.com>

        Reviewed by Sam Weinig.

        Fix fast/dom/Window/console-functions.html.

        The call frame on the ExecState was not being updated on calls into native functions.  This meant that functions
        such as console.log would use the line number of the last JS function on the call stack.

        * VM/Machine.cpp:
        (KJS::Machine::cti_op_call_NotJSFunction): Update the ExecState's call frame before making a native function call,
        and restore it when the function is done.
        (KJS::Machine::cti_op_construct_NotJSConstruct): Ditto.

2008-09-05  Oliver Hunt  <oliver@apple.com>

        Start bringing up SFX on windows.

        Reviewed by Mark Rowe and Sam Weinig

        Start doing the work to bring up SFX on windows.  Initially
        just working on WREC, as it does not make any calls so reduces
        the amount of code that needs to be corrected.
        
        Start abstracting the CTI JIT codegen engine.

        * ChangeLog:
        * JavaScriptCore.vcproj/JavaScriptCore/JavaScriptCore.vcproj:
        * JavaScriptCore.xcodeproj/project.pbxproj:
        * VM/CTI.cpp:
        * masm/IA32MacroAsm.h:
        * masm/MacroAssembler.h: Added.
        (KJS::MacroAssembler::MacroAssembler):
        * masm/MacroAssemblerIA32GCC.cpp: Added.
        (KJS::MacroAssembler::emitConvertToFastCall):
        * masm/MacroAssemblerWin.cpp: Added.
        (KJS::MacroAssembler::emitConvertToFastCall):
        * wrec/WREC.cpp:
        (KJS::WRECompiler::parseGreedyQuantifier):
        (KJS::WRECompiler::parseCharacterClass):
        (KJS::WRECompiler::parseEscape):
        (KJS::WRECompiler::compilePattern):
        * wrec/WREC.h:

2008-09-04  Gavin Barraclough  <barraclough@apple.com>

        Reviewed by Sam Weinig.

        Support for slow scripts (timeout checking).

        * VM/CTI.cpp:
        (KJS::CTI::privateCompileMainPass):
        (KJS::CTI::privateCompile):
        * VM/Machine.cpp:
        (KJS::slideRegisterWindowForCall):
        (KJS::Machine::cti_timeout_check):
        (KJS::Machine::cti_vm_throw):

2008-09-04  Sam Weinig  <sam@webkit.org>

        Reviewed by Mark Rowe.

        Third round of style cleanup.

        * VM/CTI.cpp:
        * VM/CTI.h:
        * VM/CodeBlock.h:
        * VM/Machine.cpp:
        * VM/Machine.h:
        * kjs/ExecState.h:

2008-09-04  Sam Weinig  <sam@webkit.org>

        Reviewed by Jon Honeycutt.

        Second round of style cleanup.

        * VM/CTI.cpp:
        * VM/CTI.h:
        * wrec/WREC.h:

2008-09-04  Sam Weinig  <sam@webkit.org>

        Reviewed by Mark Rowe.

        First round of style cleanup.

        * VM/CTI.cpp:
        * VM/CTI.h:
        * masm/IA32MacroAsm.h:
        * wrec/WREC.cpp:
        * wrec/WREC.h:

2008-09-04  Geoffrey Garen  <ggaren@apple.com>

        Reviewed by Mark Rowe.
        
        Merged http://trac.webkit.org/changeset/36081 to work with CTI.

        * VM/Machine.cpp:
        (KJS::Machine::tryCtiCacheGetByID):

2008-09-04  Gavin Barraclough  <barraclough@apple.com>

        Reviewed by Sam Weinig.

        Enable profiling in CTI.

        * VM/CTI.h:
        (KJS::):
        (KJS::CTI::execute):
        * VM/Machine.cpp:
        (KJS::Machine::cti_op_call_JSFunction):
        (KJS::Machine::cti_op_call_NotJSFunction):
        (KJS::Machine::cti_op_ret):
        (KJS::Machine::cti_op_construct_JSConstruct):
        (KJS::Machine::cti_op_construct_NotJSConstruct):

2008-09-04  Victor Hernandez  <vhernandez@apple.com>

        Reviewed by Geoffrey Garen.
        
        Fixed an #if to support using WREC without CTI.

        * kjs/regexp.cpp:
        (KJS::RegExp::match):

2008-09-04  Gavin Barraclough  <barraclough@apple.com>

        Reviewed by Oliver Hunt.

        The array/string length trampolines are owned by the Machine, not the codeblock that compiled them.

        * VM/CTI.cpp:
        (KJS::CTI::privateArrayLengthTrampoline):
        (KJS::CTI::privateStringLengthTrampoline):
        * VM/Machine.cpp:
        (KJS::Machine::~Machine):
        * VM/Machine.h:

2008-09-04  Mark Rowe  <mrowe@apple.com>

        Reviewed by Gavin Barraclough and Sam Weinig.

        Fix a crash on launch of jsc when GuardMalloc is enabled.

        * kjs/ScopeChain.h:
        (KJS::ScopeChain::ScopeChain): Initialize m_node to 0 when we have no valid scope chain.
        (KJS::ScopeChain::~ScopeChain): Null-check m_node before calling deref.

2008-09-03  Oliver Hunt  <oliver@apple.com>

        Reviewed by Gavin Barraclough and Geoff Garen.

        Fix inspector and fast array access so that it bounds
        checks correctly.

        * VM/CTI.cpp:
        (KJS::CTI::privateCompile_pass2_Main):
        * masm/IA32MacroAsm.h:
        (KJS::IA32MacroAssembler::):
        (KJS::IA32MacroAssembler::emitUnlinkedJb):
        (KJS::IA32MacroAssembler::emitUnlinkedJbe):

2008-09-03  Mark Rowe  <mrowe@apple.com>

        Move the assertion after the InitializeAndReturn block, as
        that is used even when CTI is enabled.

        * VM/Machine.cpp:
        (KJS::Machine::privateExecute):

2008-09-03  Mark Rowe  <mrowe@apple.com>

        Reviewed by Sam Weinig.

        Replace calls to exit with ASSERT_WITH_MESSAGE or ASSERT_NOT_REACHED.

        * VM/CTI.cpp:
        (KJS::CTI::privateCompile_pass1_Scan):
        (KJS::CTI::privateCompile_pass2_Main):
        (KJS::CTI::privateCompile_pass4_SlowCases):
        * VM/Machine.cpp:
        (KJS::Machine::privateExecute):
        (KJS::Machine::cti_vm_throw):

2008-09-03  Mark Rowe  <mrowe@apple.com>

        Reviewed by Sam Weinig.

        Tweak JavaScriptCore to compile on non-x86 platforms.  This is achieved
        by wrapping more code with ENABLE(CTI), ENABLE(WREC), and PLATFORM(X86)
        #if's.

        * VM/CTI.cpp:
        * VM/CTI.h:
        * VM/CodeBlock.cpp:
        (KJS::CodeBlock::printStructureIDs): Use %td as the format specifier for
        printing a ptrdiff_t.
        * VM/Machine.cpp:
        * VM/Machine.h:
        * kjs/regexp.cpp:
        (KJS::RegExp::RegExp):
        (KJS::RegExp::~RegExp):
        (KJS::RegExp::match):
        * kjs/regexp.h:
        * masm/IA32MacroAsm.h:
        * wrec/WREC.cpp:
        * wrec/WREC.h:
        * wtf/Platform.h: Only enable CTI and WREC on x86.  Add an extra define to
        track whether any MASM-using features are enabled.

2008-09-03  Gavin Barraclough  <barraclough@apple.com>

        Reviewed by Oliver Hunt.

        Copy Geoff's array/string length optimization for CTI.

        * VM/CTI.cpp:
        (KJS::CTI::privateArrayLengthTrampoline):
        (KJS::CTI::privateStringLengthTrampoline):
        * VM/CTI.h:
        (KJS::CTI::compileArrayLengthTrampoline):
        (KJS::CTI::compileStringLengthTrampoline):
        * VM/Machine.cpp:
        (KJS::Machine::Machine):
        (KJS::Machine::getCtiArrayLengthTrampoline):
        (KJS::Machine::getCtiStringLengthTrampoline):
        (KJS::Machine::tryCtiCacheGetByID):
        (KJS::Machine::cti_op_get_by_id_second):
        * VM/Machine.h:
        * kjs/JSString.h:
        * kjs/ustring.h:

2008-09-03  Gavin Barraclough  <barraclough@apple.com>

        Reviewed by Oliver Hunt.

        Implement fast array accesses in CTI - 2-3% progression on sunspider.

        * VM/CTI.cpp:
        (KJS::CTI::emitFastArithIntToImmNoCheck):
        (KJS::CTI::compileOpCall):
        (KJS::CTI::privateCompile_pass2_Main):
        (KJS::CTI::privateCompile_pass4_SlowCases):
        * VM/CTI.h:
        * kjs/JSArray.h:

2008-09-02  Gavin Barraclough  <barraclough@apple.com>

        Reviewed by Oliver Hunt.

        Enable fast property access support in CTI.

        * VM/CTI.cpp:
        (KJS::ctiSetReturnAddress):
        (KJS::ctiRepatchCallByReturnAddress):
        (KJS::CTI::privateCompile_pass2_Main):
        (KJS::CTI::privateCompile):
        (KJS::CTI::privateCompileGetByIdSelf):
        (KJS::CTI::privateCompileGetByIdProto):
        (KJS::CTI::privateCompileGetByIdChain):
        (KJS::CTI::privateCompilePutByIdReplace):
        * VM/CTI.h:
        (KJS::CTI::compileGetByIdSelf):
        (KJS::CTI::compileGetByIdProto):
        (KJS::CTI::compileGetByIdChain):
        (KJS::CTI::compilePutByIdReplace):
        * VM/CodeBlock.cpp:
        (KJS::CodeBlock::~CodeBlock):
        * VM/CodeBlock.h:
        * VM/Machine.cpp:
        (KJS::doSetReturnAddressVmThrowTrampoline):
        (KJS::Machine::tryCtiCachePutByID):
        (KJS::Machine::tryCtiCacheGetByID):
        (KJS::Machine::cti_op_put_by_id):
        (KJS::Machine::cti_op_put_by_id_second):
        (KJS::Machine::cti_op_put_by_id_generic):
        (KJS::Machine::cti_op_put_by_id_fail):
        (KJS::Machine::cti_op_get_by_id):
        (KJS::Machine::cti_op_get_by_id_second):
        (KJS::Machine::cti_op_get_by_id_generic):
        (KJS::Machine::cti_op_get_by_id_fail):
        (KJS::Machine::cti_op_throw):
        (KJS::Machine::cti_vm_throw):
        * VM/Machine.h:
        * kjs/JSCell.h:
        * kjs/JSObject.h:
        * kjs/PropertyMap.h:
        * kjs/StructureID.cpp:
        (KJS::StructureIDChain::StructureIDChain):
        * masm/IA32MacroAsm.h:
        (KJS::IA32MacroAssembler::emitCmpl_i32m):
        (KJS::IA32MacroAssembler::emitMovl_mr):
        (KJS::IA32MacroAssembler::emitMovl_rm):

2008-09-02  Sam Weinig  <sam@webkit.org>

        Reviewed by Gavin Barraclough and Mark Rowe.

        A backslash (\) at the of a RegEx should produce an error.
        Fixes fast/regex/test1.html.

        * wrec/WREC.cpp:
        (KJS::WRECompiler::parseEscape):

2008-09-02  Sam Weinig  <sam@webkit.org>

        Reviewed by Geoff Garen.

        Link jumps for the slow case of op_loop_if_less.  Fixes acid3.

        * VM/CTI.cpp:
        (KJS::CTI::privateCompile_pass4_SlowCases):

2008-09-01  Sam Weinig  <sam@webkit.org>

        Rubber-stamped by Maciej Stachowiak.

        Switch WREC on by default.

        * wtf/Platform.h:

2008-09-01  Sam Weinig  <sam@webkit.org>

        Reviewed by Mark Rowe.

        Fix two failures in fast/regex/test1.html
          - \- in a character class should be treated as a literal -
          - A missing max quantifier needs to be treated differently than
            a null max quantifier.

        * wrec/WREC.cpp:
        (KJS::WRECompiler::generateNonGreedyQuantifier):
        (KJS::WRECompiler::generateGreedyQuantifier):
        (KJS::WRECompiler::parseCharacterClass):
        * wrec/WREC.h:
        (KJS::Quantifier::Quantifier):

2008-09-01  Sam Weinig  <sam@webkit.org>

        Reviewed by Mark Rowe.

        Fix crash in fast/js/kde/evil-n.html

        * kjs/regexp.cpp: Always pass a non-null offset vector to the wrec function.

2008-09-01  Sam Weinig  <sam@webkit.org>

        Reviewed by Gavin Barraclough and Mark Rowe.

        Add pattern length limit fixing one test in fast/js.

        * wrec/WREC.cpp:
        (KJS::WRECompiler::compile):
        * wrec/WREC.h:
        (KJS::WRECompiler::):

2008-09-01  Sam Weinig  <sam@webkit.org>

        Reviewed by Gavin Barraclough and Mark Rowe.

        Make octal escape parsing/back-reference parsing more closely match 
        prior behavior fixing one test in fast/js.

        * wrec/WREC.cpp:
        (KJS::WRECompiler::parseCharacterClass): 8 and 9 should be IdentityEscaped
        (KJS::WRECompiler::parseEscape):
        * wrec/WREC.h:
        (KJS::WRECompiler::peekDigit):

2008-09-01  Sam Weinig  <sam@webkit.org>

        Reviewed by Gavin Barraclough and Mark Rowe.

        Fix one mozilla test.

        * wrec/WREC.cpp:
        (KJS::WRECompiler::generateCharacterClassInverted): Fix incorrect not
        ascii upper check.

2008-09-01  Sam Weinig  <sam@webkit.org>

        Reviewed by Gavin Barraclough and Mark Rowe.

        Parse octal escapes in character classes fixing one mozilla test.

        * wrec/WREC.cpp:
        (KJS::WRECompiler::parseCharacterClass):
        (KJS::WRECompiler::parseOctalEscape):
        * wrec/WREC.h:
        (KJS::WRECompiler::consumeOctal):

2008-09-01  Sam Weinig  <sam@webkit.org>

        Reviewed by Oliver Hunt.

        Fixes two mozilla tests with WREC enabled.

        * wrec/WREC.cpp:
        (KJS::CharacterClassConstructor::append): Keep the character class sorted
        when appending another character class.

2008-09-01  Sam Weinig  <sam@webkit.org>

        Reviewed by Gavin Barraclough and Mark Rowe.

        Fixes two mozilla tests with WREC enabled.

        * wrec/WREC.cpp:
        (KJS::CharacterClassConstructor::addSortedRange): Insert the range at the correct position
        instead of appending it to the end.

2008-09-01  Gavin Barraclough  <barraclough@apple.com>

        Reviewed by Oliver Hunt.

        Move cross-compilation unit call into NEVER_INLINE function.

        * VM/Machine.cpp:
        (KJS::doSetReturnAddressVmThrowTrampoline):

2008-09-01  Sam Weinig  <sam@webkit.org>

        Reviewed by Gavin Barraclough and Geoff Garen.

        Fix one test in fast/js.

        * VM/Machine.cpp:
        (KJS::Machine::cti_op_construct_NotJSConstruct): Throw a createNotAConstructorError,
        instead of a createNotAFunctionError.

2008-08-31  Gavin Barraclough  <barraclough@apple.com>

        Reviewed by Maciej Stachowiak.
        
        Zero-cost exception handling.  This patch takes the exception checking
        back of the hot path.  When an exception occurs in a Machine::cti*
        method, the return address to JIT code is recorded, and is then
        overwritten with a pointer to a trampoline routine.  When the method
        returns the trampoline will cause the cti_vm_throw method to be invoked.

        cti_vm_throw uses the return address preserved above, to discover the
        vPC of the bytecode that raised the exception (using a map build during
        translation).  From the VPC of the faulting bytecode the vPC of a catch
        routine may be discovered (unwinding the stack where necesary), and then
        a bytecode address for the catch routine is looked up.  Final cti_vm_throw
        overwrites its return address to JIT code again, to trampoline directly
        to the catch routine.
        
        cti_op_throw is handled in a similar fashion.

        * VM/CTI.cpp:
        (KJS::CTI::emitPutCTIParam):
        (KJS::CTI::emitPutToCallFrameHeader):
        (KJS::CTI::emitGetFromCallFrameHeader):
        (KJS::ctiSetReturnAddressForArgs):
        (KJS::CTI::emitDebugExceptionCheck):
        (KJS::CTI::printOpcodeOperandTypes):
        (KJS::CTI::emitCall):
        (KJS::CTI::compileOpCall):
        (KJS::CTI::privateCompile_pass2_Main):
        (KJS::CTI::privateCompile):
        * VM/CTI.h:
        (KJS::CallRecord::CallRecord):
        (KJS::):
        (KJS::CTI::execute):
        * VM/CodeBlock.h:
        * VM/Machine.cpp:
        (KJS::Machine::privateExecute):
        (KJS::Machine::cti_op_instanceof):
        (KJS::Machine::cti_op_call_NotJSFunction):
        (KJS::Machine::cti_op_resolve):
        (KJS::Machine::cti_op_resolve_func):
        (KJS::Machine::cti_op_resolve_skip):
        (KJS::Machine::cti_op_resolve_with_base):
        (KJS::Machine::cti_op_throw):
        (KJS::Machine::cti_op_in):
        (KJS::Machine::cti_vm_throw):
        * VM/RegisterFile.h:
        (KJS::RegisterFile::):
        * kjs/ExecState.h:
        (KJS::ExecState::setCtiReturnAddress):
        (KJS::ExecState::ctiReturnAddress):
        * masm/IA32MacroAsm.h:
        (KJS::IA32MacroAssembler::):
        (KJS::IA32MacroAssembler::emitPushl_m):
        (KJS::IA32MacroAssembler::emitPopl_m):
        (KJS::IA32MacroAssembler::getRelocatedAddress):

2008-08-31  Mark Rowe  <mrowe@apple.com>

        Reviewed by Oliver Hunt.

        Fall back to PCRE for any regexp containing parentheses until we correctly backtrack within them.

        * wrec/WREC.cpp:
        (KJS::WRECompiler::parseParentheses):
        * wrec/WREC.h:
        (KJS::WRECompiler::):

2008-08-31  Mark Rowe  <mrowe@apple.com>

        Reviewed by Oliver Hunt.

        Fix several issues within ecma_3/RegExp/perlstress-001.js with WREC enabled.

        * wrec/WREC.cpp:
        (KJS::WRECompiler::generateNonGreedyQuantifier): Compare with the maximum quantifier count rather than the minimum.
        (KJS::WRECompiler::generateAssertionEOL): Do a register-to-register comparison rather than immediate-to-register.
        (KJS::WRECompiler::parseCharacterClass): Pass through the correct inversion flag.

2008-08-30  Mark Rowe  <mrowe@apple.com>

        Reviewed by Oliver Hunt.

        Re-fix the six remaining failures in the Mozilla JavaScript tests in a manner that does not kill performance.
        This shows up as a 0.6% progression on SunSpider on my machine.

        Grow the JITCodeBuffer's underlying buffer when we run out of space rather than just bailing out.

        * VM/CodeBlock.h:
        (KJS::CodeBlock::~CodeBlock): Switch to using fastFree now that JITCodeBuffer::copy uses fastMalloc.
        * kjs/regexp.cpp: Ditto.
        * masm/IA32MacroAsm.h:
        (KJS::JITCodeBuffer::growBuffer):
        (KJS::JITCodeBuffer::JITCodeBuffer):
        (KJS::JITCodeBuffer::~JITCodeBuffer):
        (KJS::JITCodeBuffer::putByte):
        (KJS::JITCodeBuffer::putShort):
        (KJS::JITCodeBuffer::putInt):
        (KJS::JITCodeBuffer::reset):
        (KJS::JITCodeBuffer::copy):

2008-08-29  Oliver Hunt  <oliver@apple.com>

        RS=Maciej

        Roll out previous patch as it causes a 5% performance regression

        * JavaScriptCore.xcodeproj/project.pbxproj:
        * VM/CTI.cpp:
        (KJS::getJCB):
        (KJS::CTI::privateCompile):
        * VM/CodeBlock.h:
        (KJS::CodeBlock::~CodeBlock):
        * masm/IA32MacroAsm.h:
        (KJS::JITCodeBuffer::JITCodeBuffer):
        (KJS::JITCodeBuffer::putByte):
        (KJS::JITCodeBuffer::putShort):
        (KJS::JITCodeBuffer::putInt):
        (KJS::JITCodeBuffer::getEIP):
        (KJS::JITCodeBuffer::start):
        (KJS::JITCodeBuffer::getOffset):
        (KJS::JITCodeBuffer::reset):
        (KJS::JITCodeBuffer::copy):
        (KJS::IA32MacroAssembler::emitModRm_rr):
        (KJS::IA32MacroAssembler::emitModRm_rm):
        (KJS::IA32MacroAssembler::emitModRm_rmsib):
        (KJS::IA32MacroAssembler::IA32MacroAssembler):
        (KJS::IA32MacroAssembler::emitInt3):
        (KJS::IA32MacroAssembler::emitPushl_r):
        (KJS::IA32MacroAssembler::emitPopl_r):
        (KJS::IA32MacroAssembler::emitMovl_rr):
        (KJS::IA32MacroAssembler::emitAddl_rr):
        (KJS::IA32MacroAssembler::emitAddl_i8r):
        (KJS::IA32MacroAssembler::emitAddl_i32r):
        (KJS::IA32MacroAssembler::emitAddl_mr):
        (KJS::IA32MacroAssembler::emitAndl_rr):
        (KJS::IA32MacroAssembler::emitAndl_i32r):
        (KJS::IA32MacroAssembler::emitCmpl_i8r):
        (KJS::IA32MacroAssembler::emitCmpl_rr):
        (KJS::IA32MacroAssembler::emitCmpl_rm):
        (KJS::IA32MacroAssembler::emitCmpl_i32r):
        (KJS::IA32MacroAssembler::emitCmpl_i32m):
        (KJS::IA32MacroAssembler::emitCmpw_rm):
        (KJS::IA32MacroAssembler::emitOrl_rr):
        (KJS::IA32MacroAssembler::emitOrl_i8r):
        (KJS::IA32MacroAssembler::emitSubl_rr):
        (KJS::IA32MacroAssembler::emitSubl_i8r):
        (KJS::IA32MacroAssembler::emitSubl_i32r):
        (KJS::IA32MacroAssembler::emitSubl_mr):
        (KJS::IA32MacroAssembler::emitTestl_i32r):
        (KJS::IA32MacroAssembler::emitTestl_rr):
        (KJS::IA32MacroAssembler::emitXorl_i8r):
        (KJS::IA32MacroAssembler::emitXorl_rr):
        (KJS::IA32MacroAssembler::emitSarl_i8r):
        (KJS::IA32MacroAssembler::emitSarl_CLr):
        (KJS::IA32MacroAssembler::emitShl_i8r):
        (KJS::IA32MacroAssembler::emitShll_CLr):
        (KJS::IA32MacroAssembler::emitMull_rr):
        (KJS::IA32MacroAssembler::emitIdivl_r):
        (KJS::IA32MacroAssembler::emitCdq):
        (KJS::IA32MacroAssembler::emitMovl_mr):
        (KJS::IA32MacroAssembler::emitMovzwl_mr):
        (KJS::IA32MacroAssembler::emitMovl_rm):
        (KJS::IA32MacroAssembler::emitMovl_i32r):
        (KJS::IA32MacroAssembler::emitMovl_i32m):
        (KJS::IA32MacroAssembler::emitLeal_mr):
        (KJS::IA32MacroAssembler::emitRet):
        (KJS::IA32MacroAssembler::emitJmpN_r):
        (KJS::IA32MacroAssembler::emitJmpN_m):
        (KJS::IA32MacroAssembler::emitCall):
        (KJS::IA32MacroAssembler::label):
        (KJS::IA32MacroAssembler::emitUnlinkedJmp):
        (KJS::IA32MacroAssembler::emitUnlinkedJne):
        (KJS::IA32MacroAssembler::emitUnlinkedJe):
        (KJS::IA32MacroAssembler::emitUnlinkedJl):
        (KJS::IA32MacroAssembler::emitUnlinkedJle):
        (KJS::IA32MacroAssembler::emitUnlinkedJge):
        (KJS::IA32MacroAssembler::emitUnlinkedJae):
        (KJS::IA32MacroAssembler::emitUnlinkedJo):
        (KJS::IA32MacroAssembler::link):
        * wrec/WREC.cpp:
        (KJS::WRECompiler::compilePattern):
        (KJS::WRECompiler::compile):
        * wrec/WREC.h:

2008-08-29  Mark Rowe  <mrowe@apple.com>

        Reviewed by Oliver Hunt.

        Have JITCodeBuffer manage a Vector containing the generated code so that it can grow
        as needed when generating code for a large function.  This fixes all six remaining failures
        in Mozilla tests in both debug and release builds.

        * VM/CTI.cpp:
        (KJS::CTI::privateCompile):
        * VM/CodeBlock.h:
        (KJS::CodeBlock::~CodeBlock):
        * masm/IA32MacroAsm.h:
        (KJS::JITCodeBuffer::putByte):
        (KJS::JITCodeBuffer::putShort):
        (KJS::JITCodeBuffer::putInt):
        (KJS::JITCodeBuffer::getEIP):
        (KJS::JITCodeBuffer::start):
        (KJS::JITCodeBuffer::getOffset):
        (KJS::JITCodeBuffer::getCode):
        (KJS::IA32MacroAssembler::emitModRm_rr):
        * wrec/WREC.cpp:
        (KJS::WRECompiler::compilePattern):
        * wrec/WREC.h:

2008-08-29  Mark Rowe  <mrowe@apple.com>

        Reviewed by Oliver Hunt.

        Implement parsing of octal escapes in regular expressions.  This fixes three Mozilla tests.

        * wrec/WREC.cpp:
        (KJS::WRECompiler::parseOctalEscape):
        (KJS::WRECompiler::parseEscape): Parse the escape sequence as an octal escape if it has a leading zero.
        Add a FIXME about treating invalid backreferences as octal escapes in the future.
        * wrec/WREC.h:
        (KJS::WRECompiler::consumeNumber): Multiply by 10 rather than 0 so that we handle numbers with more than
        one digit.
        * wtf/ASCIICType.h:
        (WTF::isASCIIOctalDigit):

2008-08-29  Sam Weinig  <sam@webkit.org>

        Reviewed by Mark Rowe.

        Pass vPC to instanceof method.  Fixes 2 mozilla tests in debug.

        * VM/CTI.cpp:
        (KJS::CTI::privateCompile_pass2_Main):
        * VM/Machine.cpp:
        (KJS::Machine::cti_op_instanceof):

2008-08-29  Sam Weinig  <sam@webkit.org>

        Reviewed by Mark Rowe.

        Pass vPCs to resolve methods for correct exception creation.  Fixes
        17 mozilla tests in debug.

        * VM/CTI.cpp:
        (KJS::CTI::privateCompile_pass2_Main):
        * VM/CTI.h:
        * VM/Machine.cpp:
        (KJS::Machine::cti_op_resolve):
        (KJS::Machine::cti_op_resolve_func):
        (KJS::Machine::cti_op_resolve_skip):
        (KJS::Machine::cti_op_resolve_with_base):

2008-08-29  Gavin Barraclough  <barraclough@apple.com>

        Reviewed by Oliver Hunt.

        Remembering to actually throw the exception passed to op throw helps.
        Regressions 19 -> 6.

        * VM/Machine.cpp:
        (KJS::Machine::cti_op_throw):
        (KJS::Machine::cti_vm_throw):

2008-08-29  Gavin Barraclough  <barraclough@apple.com>

        Reviewed by Sam Weinig.

        Support for exception unwinding the stack.
        
        Once upon a time, Sam asked me for a bettr ChangeLog entry.  The return address
        is now preserved on entry to a JIT code function (if we preserve lazily we need
        restore the native return address during exception stack unwind).  This takes
        the number of regressions down from ~150 to 19.

        * VM/CTI.cpp:
        (KJS::getJCB):
        (KJS::CTI::emitExceptionCheck):
        (KJS::CTI::compileOpCall):
        (KJS::CTI::privateCompile_pass2_Main):
        (KJS::CTI::privateCompile):
        * VM/CTI.h:
        (KJS::):
        * VM/Machine.cpp:
        (KJS::Machine::throwException):
        (KJS::Machine::cti_op_call_JSFunction):
        (KJS::Machine::cti_op_call_NotJSFunction):
        (KJS::Machine::cti_op_construct_JSConstruct):
        (KJS::Machine::cti_op_construct_NotJSConstruct):
        (KJS::Machine::cti_op_throw):
        (KJS::Machine::cti_vm_throw):

2008-08-29  Mark Rowe  <mrowe@apple.com>

        Reviewed by Oliver Hunt.

        Fix js1_2/regexp/word_boundary.js and four other Mozilla tests with WREC enabled.

        * wrec/WREC.cpp:
        (KJS::WRECompiler::generateCharacterClassInvertedRange): If none of the exact matches
        succeeded, jump to failure.
        (KJS::WRECompiler::compilePattern): Restore and increment the current position stored
        on the stack to ensure that it will be reset to the correct position after a failed
        match has consumed input.

2008-08-29  Mark Rowe  <mrowe@apple.com>

        Reviewed by Oliver Hunt.

        Fix a hang in ecma_3/RegExp/15.10.2-1.js with WREC enabled.
        A backreference with a quantifier would get stuck in an infinite
        loop if the captured range was empty.

        * wrec/WREC.cpp:
        (KJS::WRECompiler::generateBackreferenceQuantifier): If the captured range
        was empty, do not attempt to match the backreference.
        (KJS::WRECompiler::parseBackreferenceQuantifier):
        * wrec/WREC.h:
        (KJS::Quantifier::):

2008-08-28  Sam Weinig  <sam@webkit.org>

        Reviewed by Oliver Hunt.

        Implement op_debug.

        * VM/CTI.cpp:
        (KJS::CTI::privateCompile_pass1_Scan):
        (KJS::CTI::privateCompile_pass2_Main):
        * VM/Machine.cpp:
        (KJS::Machine::debug):
        (KJS::Machine::privateExecute):
        (KJS::Machine::cti_op_debug):
        * VM/Machine.h:

2008-08-28  Sam Weinig  <sam@webkit.org>

        Reviewed by Gavin Barraclough and Geoff Garen.

        Implement op_switch_string fixing 1 mozilla test and one test in fast/js.

        * VM/CTI.cpp:
        (KJS::CTI::privateCompile_pass1_Scan):
        (KJS::CTI::privateCompile_pass2_Main):
        (KJS::CTI::privateCompile):
        * VM/CTI.h:
        (KJS::SwitchRecord::):
        (KJS::SwitchRecord::SwitchRecord):
        * VM/CodeBlock.cpp:
        (KJS::CodeBlock::dump):
        * VM/CodeBlock.h:
        (KJS::ExpressionRangeInfo::):
        (KJS::StringJumpTable::offsetForValue):
        (KJS::StringJumpTable::ctiForValue):
        (KJS::SimpleJumpTable::add):
        (KJS::SimpleJumpTable::ctiForValue):
        * VM/CodeGenerator.cpp:
        (KJS::prepareJumpTableForStringSwitch):
        * VM/Machine.cpp:
        (KJS::Machine::privateExecute):
        (KJS::Machine::cti_op_switch_string):
        * VM/Machine.h:

2008-08-28  Gavin Barraclough  <barraclough@apple.com>

        Reviewed by Oliver Hunt.

        Do not recurse on the machine stack when executing op_call.

        * VM/CTI.cpp:
        (KJS::CTI::emitGetPutArg):
        (KJS::CTI::emitPutArg):
        (KJS::CTI::emitPutArgConstant):
        (KJS::CTI::compileOpCall):
        (KJS::CTI::privateCompile_pass2_Main):
        (KJS::CTI::privateCompile):
        * VM/CTI.h:
        (KJS::):
        (KJS::CTI::compile):
        (KJS::CTI::execute):
        (KJS::CTI::):
        * VM/Machine.cpp:
        (KJS::Machine::Machine):
        (KJS::Machine::execute):
        (KJS::Machine::cti_op_call_JSFunction):
        (KJS::Machine::cti_op_call_NotJSFunction):
        (KJS::Machine::cti_op_ret):
        (KJS::Machine::cti_op_construct_JSConstruct):
        (KJS::Machine::cti_op_construct_NotJSConstruct):
        (KJS::Machine::cti_op_call_eval):
        * VM/Machine.h:
        * VM/Register.h:
        (KJS::Register::Register):
        * VM/RegisterFile.h:
        (KJS::RegisterFile::):
        * kjs/InternalFunction.h:
        (KJS::InternalFunction::InternalFunction):
        * kjs/JSFunction.h:
        (KJS::JSFunction::JSFunction):
        * kjs/ScopeChain.h:
        (KJS::ScopeChain::ScopeChain):
        * masm/IA32MacroAsm.h:
        (KJS::IA32MacroAssembler::):
        (KJS::IA32MacroAssembler::emitModRm_opm):
        (KJS::IA32MacroAssembler::emitCmpl_i32m):
        (KJS::IA32MacroAssembler::emitCallN_r):

2008-08-28  Sam Weinig  <sam@webkit.org>

        Reviewed by Mark Rowe.

        Exit instead of crashing in ctiUnsupported and ctiTimedOut.

        * VM/Machine.cpp:
        (KJS::ctiUnsupported):
        (KJS::ctiTimedOut):

2008-08-28  Oliver Hunt  <oliver@apple.com>

        Reviewed by Maciej Stachowiak.

        Implement codegen for op_jsr and op_sret.

        * VM/CTI.cpp:
        (KJS::CTI::privateCompile_pass1_Scan):
        (KJS::CTI::privateCompile_pass2_Main):
        (KJS::CTI::privateCompile):
        * VM/CTI.h:
        (KJS::CTI::JSRInfo::JSRInfo):
        * masm/IA32MacroAsm.h:
        (KJS::IA32MacroAssembler::emitJmpN_m):
        (KJS::IA32MacroAssembler::linkAbsoluteAddress):

2008-08-28  Gavin Barraclough  <barraclough@apple.com>

        Reviewed by Oliver Hunt.

        Initial support for exceptions (throw / catch must occur in same CodeBlock).

        * VM/CTI.cpp:
        (KJS::CTI::emitExceptionCheck):
        (KJS::CTI::emitCall):
        (KJS::CTI::privateCompile_pass2_Main):
        (KJS::CTI::privateCompile_pass4_SlowCases):
        (KJS::CTI::privateCompile):
        * VM/CTI.h:
        * VM/CodeBlock.cpp:
        (KJS::CodeBlock::nativeExceptionCodeForHandlerVPC):
        * VM/CodeBlock.h:
        * VM/CodeGenerator.cpp:
        (KJS::CodeGenerator::emitCatch):
        * VM/Machine.cpp:
        (KJS::Machine::throwException):
        (KJS::Machine::privateExecute):
        (KJS::ctiUnsupported):
        (KJS::ctiTimedOut):
        (KJS::Machine::cti_op_add):
        (KJS::Machine::cti_op_pre_inc):
        (KJS::Machine::cti_timeout_check):
        (KJS::Machine::cti_op_loop_if_less):
        (KJS::Machine::cti_op_put_by_id):
        (KJS::Machine::cti_op_get_by_id):
        (KJS::Machine::cti_op_instanceof):
        (KJS::Machine::cti_op_del_by_id):
        (KJS::Machine::cti_op_mul):
        (KJS::Machine::cti_op_call):
        (KJS::Machine::cti_op_resolve):
        (KJS::Machine::cti_op_construct):
        (KJS::Machine::cti_op_get_by_val):
        (KJS::Machine::cti_op_resolve_func):
        (KJS::Machine::cti_op_sub):
        (KJS::Machine::cti_op_put_by_val):
        (KJS::Machine::cti_op_lesseq):
        (KJS::Machine::cti_op_loop_if_true):
        (KJS::Machine::cti_op_negate):
        (KJS::Machine::cti_op_resolve_skip):
        (KJS::Machine::cti_op_div):
        (KJS::Machine::cti_op_pre_dec):
        (KJS::Machine::cti_op_jless):
        (KJS::Machine::cti_op_not):
        (KJS::Machine::cti_op_jtrue):
        (KJS::Machine::cti_op_post_inc):
        (KJS::Machine::cti_op_eq):
        (KJS::Machine::cti_op_lshift):
        (KJS::Machine::cti_op_bitand):
        (KJS::Machine::cti_op_rshift):
        (KJS::Machine::cti_op_bitnot):
        (KJS::Machine::cti_op_resolve_with_base):
        (KJS::Machine::cti_op_mod):
        (KJS::Machine::cti_op_less):
        (KJS::Machine::cti_op_neq):
        (KJS::Machine::cti_op_post_dec):
        (KJS::Machine::cti_op_urshift):
        (KJS::Machine::cti_op_bitxor):
        (KJS::Machine::cti_op_bitor):
        (KJS::Machine::cti_op_call_eval):
        (KJS::Machine::cti_op_throw):
        (KJS::Machine::cti_op_push_scope):
        (KJS::Machine::cti_op_stricteq):
        (KJS::Machine::cti_op_nstricteq):
        (KJS::Machine::cti_op_to_jsnumber):
        (KJS::Machine::cti_op_in):
        (KJS::Machine::cti_op_del_by_val):
        (KJS::Machine::cti_vm_throw):
        * VM/Machine.h:
        * kjs/ExecState.h:
        * masm/IA32MacroAsm.h:
        (KJS::IA32MacroAssembler::emitCmpl_i32m):

2008-08-28  Mark Rowe  <mrowe@apple.com>

        Rubber-stamped by Oliver Hunt.

        Print debugging info to stderr so that run-webkit-tests can capture it.
        This makes it easy to check whether test failures are due to unimplemented
        op codes, missing support for exceptions, etc.

        * VM/CTI.cpp:
        (KJS::CTI::privateCompile_pass1_Scan):
        (KJS::CTI::printOpcodeOperandTypes):
        (KJS::CTI::privateCompile_pass2_Main):
        (KJS::CTI::privateCompile_pass4_SlowCases):
        (KJS::CTI::privateCompile):
        * VM/Machine.cpp:
        (KJS::Machine::privateExecute):
        (KJS::ctiException):
        (KJS::ctiUnsupported):
        (KJS::Machine::cti_op_call):
        (KJS::Machine::cti_op_resolve):
        (KJS::Machine::cti_op_construct):
        (KJS::Machine::cti_op_get_by_val):
        (KJS::Machine::cti_op_resolve_func):
        (KJS::Machine::cti_op_resolve_skip):
        (KJS::Machine::cti_op_resolve_with_base):
        (KJS::Machine::cti_op_call_eval):

2008-08-27  Mark Rowe  <mrowe@apple.com>

        Reviewed by Gavin Barraclough and Maciej Stachowiak.

        Fix fast/js/bitwise-and-on-undefined.html.

        A temporary value in the slow path of op_bitand was being stored in edx, but was
        being clobbered by emitGetPutArg before we used it.  To fix this, emitGetPutArg
        now takes a third argument that specifies the scratch register to use when loading
        from memory.  This allows us to avoid clobbering the temporary in op_bitand.

        * VM/CTI.cpp:
        (KJS::CTI::emitGetPutArg):
        (KJS::CTI::privateCompile_pass2_Main):
        (KJS::CTI::privateCompile_pass4_SlowCases):
        * VM/CTI.h:

2008-08-27  Mark Rowe  <mrowe@apple.com>

        Rubber-stamped by Oliver Hunt.

        Switch CTI on by default.

        * wtf/Platform.h:

2008-08-27  Mark Rowe  <mrowe@apple.com>

        Reviewed by Oliver Hunt.

        Fix the build of the full WebKit stack.

        * JavaScriptCore.xcodeproj/project.pbxproj: Mark two new headers as private so they can be pulled in from WebCore.
        * VM/CTI.h: Fix build issues that show up when compiled with GCC 4.2 as part of WebCore.
        * wrec/WREC.h: Ditto.

2008-08-27  Mark Rowe  <mrowe@apple.com>

        Reviewed by Sam Weinig.

        Implement op_new_error.  Does not fix any tests as it is always followed by the unimplemented op_throw.

        * VM/CTI.cpp:
        (KJS::CTI::privateCompile_pass1_Scan):
        (KJS::CTI::privateCompile_pass2_Main):
        * VM/Machine.cpp:
        (KJS::Machine::cti_op_new_error):
        * VM/Machine.h:

2008-08-27  Sam Weinig  <sam@webkit.org>

        Reviewed by Gavin Barraclough and Geoff Garen.

        Implement op_put_getter and op_put_setter.

        * VM/CTI.cpp:
        (KJS::CTI::privateCompile_pass1_Scan):
        (KJS::CTI::privateCompile_pass2_Main):
        * VM/Machine.cpp:
        (KJS::Machine::cti_op_put_getter):
        (KJS::Machine::cti_op_put_setter):
        * VM/Machine.h:

2008-08-27  Sam Weinig  <sam@webkit.org>

        Reviewed by Gavin Barraclough and Geoff Garen.

        Implement op_del_by_val fixing 3 mozilla tests.

        * VM/CTI.cpp:
        (KJS::CTI::privateCompile_pass1_Scan):
        (KJS::CTI::privateCompile_pass2_Main):
        * VM/Machine.cpp:
        (KJS::Machine::cti_op_del_by_val):
        * VM/Machine.h:

2008-08-27  Gavin Barraclough  <barraclough@apple.com>

        Reviewed by Oliver Hunt.

        Quick & dirty fix to get SamplingTool sampling op_call.

        * VM/SamplingTool.h:
        (KJS::SamplingTool::callingHostFunction):

2008-08-27  Sam Weinig  <sam@webkit.org>

        Reviewed by Gavin Barraclough and Geoff Garen.

        Fix op_put_by_index.

        * VM/CTI.cpp:
        (KJS::CTI::privateCompile_pass2_Main): Use emitPutArgConstant instead of emitGetPutArg
        for the property value.
        * VM/Machine.cpp:
        (KJS::Machine::cti_op_put_by_index): Get the property value from the correct argument.

2008-08-27  Sam Weinig  <sam@webkit.org>

        Reviewed by Gavin Barraclough and Geoff Garen.

        Implement op_switch_imm in the CTI fixing 13 mozilla tests.

        * VM/CTI.cpp:
        (KJS::CTI::privateCompile_pass1_Scan):
        (KJS::CTI::privateCompile_pass2_Main):
        * VM/Machine.cpp:
        (KJS::Machine::cti_op_switch_imm):
        * VM/Machine.h:

2008-08-27  Gavin Barraclough  <barraclough@apple.com>

        Reviewed by Oliver Hunt.

        Implement op_switch_char in CTI.

        * VM/CTI.cpp:
        (KJS::CTI::emitCall):
        (KJS::CTI::privateCompile_pass1_Scan):
        (KJS::CTI::privateCompile_pass2_Main):
        (KJS::CTI::privateCompile):
        * VM/CTI.h:
        (KJS::CallRecord::CallRecord):
        (KJS::SwitchRecord::SwitchRecord):
        * VM/CodeBlock.h:
        (KJS::SimpleJumpTable::SimpleJumpTable::ctiForValue):
        * VM/Machine.cpp:
        (KJS::Machine::cti_op_switch_char):
        * VM/Machine.h:
        * masm/IA32MacroAsm.h:
        (KJS::IA32MacroAssembler::):
        (KJS::IA32MacroAssembler::emitJmpN_r):
        (KJS::IA32MacroAssembler::getRelocatedAddress):
        * wtf/Platform.h:

2008-08-26  Sam Weinig  <sam@webkit.org>

        Reviewed by Mark Rowe.

        Implement op_put_by_index to fix 1 mozilla test.

        * VM/CTI.cpp:
        (KJS::CTI::privateCompile_pass1_Scan):
        (KJS::CTI::privateCompile_pass2_Main):
        * VM/Machine.cpp:
        (KJS::Machine::cti_op_put_by_index):
        * VM/Machine.h:

2008-08-26  Gavin Barraclough  <barraclough@apple.com>

        Reviewed by Geoff Garen.

        More fixes from Geoff's review.

        * VM/CTI.cpp:
        (KJS::CTI::emitGetArg):
        (KJS::CTI::emitGetPutArg):
        (KJS::CTI::emitPutArg):
        (KJS::CTI::emitPutArgConstant):
        (KJS::CTI::getConstantImmediateNumericArg):
        (KJS::CTI::emitGetCTIParam):
        (KJS::CTI::emitPutResult):
        (KJS::CTI::emitCall):
        (KJS::CTI::emitJumpSlowCaseIfNotImm):
        (KJS::CTI::emitJumpSlowCaseIfNotImms):
        (KJS::CTI::getDeTaggedConstantImmediate):
        (KJS::CTI::emitFastArithDeTagImmediate):
        (KJS::CTI::emitFastArithReTagImmediate):
        (KJS::CTI::emitFastArithPotentiallyReTagImmediate):
        (KJS::CTI::emitFastArithImmToInt):
        (KJS::CTI::emitFastArithIntToImmOrSlowCase):
        (KJS::CTI::privateCompile_pass2_Main):
        (KJS::CTI::privateCompile_pass4_SlowCases):
        (KJS::CTI::privateCompile):
        * VM/CTI.h:

2008-08-26  Mark Rowe  <mrowe@apple.com>

        Reviewed by Gavin Barraclough and Geoff Garen.

        Implement op_jmp_scopes to fix 2 Mozilla tests.

        * VM/CTI.cpp:
        (KJS::CTI::privateCompile_pass1_Scan):
        (KJS::CTI::privateCompile_pass2_Main):
        * VM/Machine.cpp:
        (KJS::Machine::cti_op_push_new_scope): Update ExecState::m_scopeChain after calling ARG_setScopeChain.
        (KJS::Machine::cti_op_jmp_scopes):
        * VM/Machine.h:

2008-08-26  Gavin Barraclough  <barraclough@apple.com>

        Reviewed by Oliver Hunt.

        WebKit Regular Expression Compiler. (set ENABLE_WREC = 1 in Platform.h).

        * JavaScriptCore.xcodeproj/project.pbxproj:
        * kjs/regexp.cpp:
        * kjs/regexp.h:
        * wrec: Added.
        * wrec/WREC.cpp: Added.
        * wrec/WREC.h: Added.
        * wtf/Platform.h:

2008-08-26  Sam Weinig  <sam@webkit.org>

        Rubber-stamped by Oliver Hunt.

        Remove bogus assertion.

        * VM/Machine.cpp:
        (KJS::Machine::cti_op_del_by_id):

2008-08-26  Mark Rowe  <mrowe@apple.com>

        Reviewed by Sam Weinig.

        Implement op_push_new_scope and stub out op_catch.  This fixes 11 Mozilla tests.

        * VM/CTI.cpp:
        (KJS::CTI::privateCompile_pass1_Scan):
        (KJS::CTI::privateCompile_pass2_Main):
        * VM/Machine.cpp:
        (KJS::Machine::cti_op_push_new_scope):
        (KJS::Machine::cti_op_catch):
        * VM/Machine.h:

2008-08-26  Mark Rowe  <mrowe@apple.com>

        Reviewed by Sam Weinig.

        Clean up op_resolve_base so that it shares its implementation with the bytecode interpreter.

        * VM/Machine.cpp:
        (KJS::inlineResolveBase):
        (KJS::resolveBase):

2008-08-26  Oliver Hunt  <oliver@apple.com>

        Reviewed by Sam Weinig.

        Add codegen support for op_instanceof, fixing 15 mozilla tests.

        * VM/CTI.cpp:
        (KJS::CTI::privateCompile_pass1_Scan):
        (KJS::CTI::privateCompile_pass2_Main):
        * VM/Machine.cpp:
        (KJS::Machine::cti_op_instanceof):
        (KJS::Machine::cti_op_del_by_id):
        * VM/Machine.h:
        * wtf/Platform.h:

2008-08-26  Gavin Barraclough  <barraclough@apple.com>

        Reviewed by Geoff Garen.

        Fixes for initial review comments.

        * VM/CTI.cpp:
        (KJS::CTI::ctiCompileGetArg):
        (KJS::CTI::ctiCompileGetPutArg):
        (KJS::CTI::ctiCompilePutResult):
        (KJS::CTI::ctiCompileCall):
        (KJS::CTI::CTI):
        (KJS::CTI::privateCompile_pass1_Scan):
        (KJS::CTI::printOpcodeOperandTypes):
        (KJS::CTI::privateCompile_pass2_Main):
        (KJS::CTI::privateCompile_pass4_SlowCases):
        (KJS::CTI::privateCompile):
        * VM/CTI.h:
        * VM/Register.h:
        * kjs/JSValue.h:

2008-08-26  Sam Weinig  <sam@webkit.org>

        Reviewed by Gavin Barraclough and Geoff Garen.

        Fix up exception checking code.

        * VM/Machine.cpp:
        (KJS::Machine::cti_op_call):
        (KJS::Machine::cti_op_resolve):
        (KJS::Machine::cti_op_construct):
        (KJS::Machine::cti_op_resolve_func):
        (KJS::Machine::cti_op_resolve_skip):
        (KJS::Machine::cti_op_resolve_with_base):
        (KJS::Machine::cti_op_call_eval):

2008-08-26  Sam Weinig  <sam@webkit.org>

        Reviewed by Oliver Hunt.

        Fix slowcase for op_post_inc and op_post_dec fixing 2 mozilla tests.

        * VM/CTI.cpp:
        (KJS::CTI::privateCompile_pass4_SlowCases):

2008-08-26  Mark Rowe  <mrowe@apple.com>

        Reviewed by Sam Weinig.

        Implement op_in, fixing 8 mozilla tests.

        * VM/CTI.cpp:
        (KJS::CTI::privateCompile_pass1_Scan):
        (KJS::CTI::privateCompile_pass2_Main):
        * VM/Machine.cpp:
        (KJS::Machine::cti_op_in):
        * VM/Machine.h:

2008-08-26  Mark Rowe  <mrowe@apple.com>

        Rubber-stamped by Oliver Hunt.

        Don't hardcode the size of a Register for op_new_array.  Fixes a crash
        seen during the Mozilla tests.

        * VM/CTI.cpp:
        (KJS::CTI::privateCompile_pass2_Main):

2008-08-26  Sam Weinig  <sam@webkit.org>

        Reviewed by Gavin Barraclough and Geoff Garen.

        Add support for op_push_scope and op_pop_scope, fixing 20 mozilla tests.

        * VM/CTI.cpp:
        (KJS::CTI::privateCompile_pass1_Scan):
        (KJS::CTI::privateCompile_pass2_Main):
        * VM/CTI.h:
        * VM/Machine.cpp:
        (KJS::Machine::cti_op_push_scope):
        (KJS::Machine::cti_op_pop_scope):
        * VM/Machine.h:

2008-08-26  Oliver Hunt  <oliver@apple.com>

        Reviewed by Maciej Stachowiak.

        Add codegen support for op_del_by_id, fixing 49 mozilla tests.

        * VM/CTI.cpp:
        (KJS::CTI::privateCompile_pass1_Scan):
        (KJS::CTI::privateCompile_pass2_Main):
        * VM/Machine.cpp:
        (KJS::Machine::cti_op_del_by_id):
        * VM/Machine.h:

2008-08-26  Sam Weinig  <sam@webkit.org>

        Reviewed by Gavin Barraclough and Geoff Garen.

        Don't hardcode the size of a Register for op_get_scoped_var and op_put_scoped_var 
        fixing 513 mozilla tests in debug build.

        * VM/CTI.cpp:
        (KJS::CTI::privateCompile_pass2_Main):

2008-08-26  Oliver Hunt  <oliver@apple.com>

        Reviewed by Maciej Stachowiak.
        
        Added code generator support for op_loop, fixing around 60 mozilla tests.

        * VM/CTI.cpp:
        (KJS::CTI::privateCompile_pass1_Scan):
        (KJS::CTI::privateCompile_pass2_Main):

2008-08-26  Mark Rowe  <mrowe@apple.com>

        Reviewed by Sam Weinig.

        Set -fomit-frame-pointer in the correct location.

        * Configurations/JavaScriptCore.xcconfig:
        * JavaScriptCore.xcodeproj/project.pbxproj:

2008-08-26  Gavin Barraclough  <barraclough@apple.com>

        Reviewed by Geoff Garen.
        
        Inital cut of CTI, Geoff's review fixes to follow.

        * JavaScriptCore.xcodeproj/project.pbxproj:
        * VM/CTI.cpp: Added.
        (KJS::getJCB):
        (KJS::CTI::ctiCompileGetArg):
        (KJS::CTI::ctiCompileGetPutArg):
        (KJS::CTI::ctiCompilePutArg):
        (KJS::CTI::ctiCompilePutArgImm):
        (KJS::CTI::ctiImmediateNumericArg):
        (KJS::CTI::ctiCompileGetCTIParam):
        (KJS::CTI::ctiCompilePutResult):
        (KJS::CTI::ctiCompileCall):
        (KJS::CTI::slowCaseIfNotImm):
        (KJS::CTI::slowCaseIfNotImms):
        (KJS::CTI::ctiFastArithDeTagConstImmediate):
        (KJS::CTI::ctiFastArithDeTagImmediate):
        (KJS::CTI::ctiFastArithReTagImmediate):
        (KJS::CTI::ctiFastArithPotentiallyReTagImmediate):
        (KJS::CTI::ctiFastArithImmToInt):
        (KJS::CTI::ctiFastArithIntToImmOrSlowCase):
        (KJS::CTI::CTI):
        (KJS::CTI::privateCompile_pass1_Scan):
        (KJS::CTI::ctiCompileAdd):
        (KJS::CTI::ctiCompileAddImm):
        (KJS::CTI::ctiCompileAddImmNotInt):
        (KJS::CTI::TEMP_HACK_PRINT_TYPES):
        (KJS::CTI::privateCompile_pass2_Main):
        (KJS::CTI::privateCompile_pass3_Link):
        (KJS::CTI::privateCompile_pass4_SlowCases):
        (KJS::CTI::privateCompile):
        * VM/CTI.h: Added.
        (KJS::CTI2Result::CTI2Result):
        (KJS::CallRecord::CallRecord):
        (KJS::JmpTable::JmpTable):
        (KJS::SlowCaseEntry::SlowCaseEntry):
        (KJS::CTI::compile):
        (KJS::CTI::LabelInfo::LabelInfo):
        * VM/CodeBlock.h:
        (KJS::CodeBlock::CodeBlock):
        (KJS::CodeBlock::~CodeBlock):
        * VM/Machine.cpp:
        (KJS::Machine::execute):
        (KJS::Machine::privateExecute):
        (KJS::ctiException):
        (KJS::ctiUnsupported):
        (KJS::ctiTimedOut):
        (KJS::Machine::cti_op_end):
        (KJS::Machine::cti_op_add):
        (KJS::Machine::cti_op_pre_inc):
        (KJS::Machine::cti_timeout_check):
        (KJS::Machine::cti_op_loop_if_less):
        (KJS::Machine::cti_op_new_object):
        (KJS::Machine::cti_op_put_by_id):
        (KJS::Machine::cti_op_get_by_id):
        (KJS::Machine::cti_op_mul):
        (KJS::Machine::cti_op_new_func):
        (KJS::Machine::cti_op_call):
        (KJS::Machine::cti_op_ret):
        (KJS::Machine::cti_op_new_array):
        (KJS::Machine::cti_op_resolve):
        (KJS::Machine::cti_op_construct):
        (KJS::Machine::cti_op_get_by_val):
        (KJS::Machine::cti_op_resolve_func):
        (KJS::Machine::cti_op_sub):
        (KJS::Machine::cti_op_put_by_val):
        (KJS::Machine::cti_op_lesseq):
        (KJS::Machine::cti_op_loop_if_true):
        (KJS::Machine::cti_op_negate):
        (KJS::Machine::cti_op_resolve_base):
        (KJS::Machine::cti_op_resolve_skip):
        (KJS::Machine::cti_op_div):
        (KJS::Machine::cti_op_pre_dec):
        (KJS::Machine::cti_op_jless):
        (KJS::Machine::cti_op_not):
        (KJS::Machine::cti_op_jtrue):
        (KJS::Machine::cti_op_post_inc):
        (KJS::Machine::cti_op_eq):
        (KJS::Machine::cti_op_lshift):
        (KJS::Machine::cti_op_bitand):
        (KJS::Machine::cti_op_rshift):
        (KJS::Machine::cti_op_bitnot):
        (KJS::Machine::cti_op_resolve_with_base):
        (KJS::Machine::cti_op_new_func_exp):
        (KJS::Machine::cti_op_mod):
        (KJS::Machine::cti_op_less):
        (KJS::Machine::cti_op_neq):
        (KJS::Machine::cti_op_post_dec):
        (KJS::Machine::cti_op_urshift):
        (KJS::Machine::cti_op_bitxor):
        (KJS::Machine::cti_op_new_regexp):
        (KJS::Machine::cti_op_bitor):
        (KJS::Machine::cti_op_call_eval):
        (KJS::Machine::cti_op_throw):
        (KJS::Machine::cti_op_get_pnames):
        (KJS::Machine::cti_op_next_pname):
        (KJS::Machine::cti_op_typeof):
        (KJS::Machine::cti_op_stricteq):
        (KJS::Machine::cti_op_nstricteq):
        (KJS::Machine::cti_op_to_jsnumber):
        * VM/Machine.h:
        * VM/Register.h:
        (KJS::Register::jsValue):
        (KJS::Register::getJSValue):
        (KJS::Register::codeBlock):
        (KJS::Register::scopeChain):
        (KJS::Register::i):
        (KJS::Register::r):
        (KJS::Register::vPC):
        (KJS::Register::jsPropertyNameIterator):
        * VM/SamplingTool.cpp:
        (KJS::):
        (KJS::SamplingTool::run):
        (KJS::SamplingTool::dump):
        * VM/SamplingTool.h:
        * kjs/JSImmediate.h:
        (KJS::JSImmediate::zeroImmediate):
        (KJS::JSImmediate::oneImmediate):
        * kjs/JSValue.h:
        * kjs/JSVariableObject.h:
        (KJS::JSVariableObject::JSVariableObjectData::offsetOf_registers):
        (KJS::JSVariableObject::offsetOf_d):
        (KJS::JSVariableObject::offsetOf_Data_registers):
        * masm: Added.
        * masm/IA32MacroAsm.h: Added.
        (KJS::JITCodeBuffer::JITCodeBuffer):
        (KJS::JITCodeBuffer::putByte):
        (KJS::JITCodeBuffer::putShort):
        (KJS::JITCodeBuffer::putInt):
        (KJS::JITCodeBuffer::getEIP):
        (KJS::JITCodeBuffer::start):
        (KJS::JITCodeBuffer::getOffset):
        (KJS::JITCodeBuffer::reset):
        (KJS::JITCodeBuffer::copy):
        (KJS::IA32MacroAssembler::):
        (KJS::IA32MacroAssembler::emitModRm_rr):
        (KJS::IA32MacroAssembler::emitModRm_rm):
        (KJS::IA32MacroAssembler::emitModRm_rmsib):
        (KJS::IA32MacroAssembler::emitModRm_opr):
        (KJS::IA32MacroAssembler::emitModRm_opm):
        (KJS::IA32MacroAssembler::IA32MacroAssembler):
        (KJS::IA32MacroAssembler::emitInt3):
        (KJS::IA32MacroAssembler::emitPushl_r):
        (KJS::IA32MacroAssembler::emitPopl_r):
        (KJS::IA32MacroAssembler::emitMovl_rr):
        (KJS::IA32MacroAssembler::emitAddl_rr):
        (KJS::IA32MacroAssembler::emitAddl_i8r):
        (KJS::IA32MacroAssembler::emitAddl_i32r):
        (KJS::IA32MacroAssembler::emitAddl_mr):
        (KJS::IA32MacroAssembler::emitAndl_rr):
        (KJS::IA32MacroAssembler::emitAndl_i32r):
        (KJS::IA32MacroAssembler::emitCmpl_i8r):
        (KJS::IA32MacroAssembler::emitCmpl_rr):
        (KJS::IA32MacroAssembler::emitCmpl_rm):
        (KJS::IA32MacroAssembler::emitCmpl_i32r):
        (KJS::IA32MacroAssembler::emitCmpw_rm):
        (KJS::IA32MacroAssembler::emitOrl_rr):
        (KJS::IA32MacroAssembler::emitOrl_i8r):
        (KJS::IA32MacroAssembler::emitSubl_rr):
        (KJS::IA32MacroAssembler::emitSubl_i8r):
        (KJS::IA32MacroAssembler::emitSubl_i32r):
        (KJS::IA32MacroAssembler::emitSubl_mr):
        (KJS::IA32MacroAssembler::emitTestl_i32r):
        (KJS::IA32MacroAssembler::emitTestl_rr):
        (KJS::IA32MacroAssembler::emitXorl_i8r):
        (KJS::IA32MacroAssembler::emitXorl_rr):
        (KJS::IA32MacroAssembler::emitSarl_i8r):
        (KJS::IA32MacroAssembler::emitSarl_CLr):
        (KJS::IA32MacroAssembler::emitShl_i8r):
        (KJS::IA32MacroAssembler::emitShll_CLr):
        (KJS::IA32MacroAssembler::emitMull_rr):
        (KJS::IA32MacroAssembler::emitIdivl_r):
        (KJS::IA32MacroAssembler::emitCdq):
        (KJS::IA32MacroAssembler::emitMovl_mr):
        (KJS::IA32MacroAssembler::emitMovzwl_mr):
        (KJS::IA32MacroAssembler::emitMovl_rm):
        (KJS::IA32MacroAssembler::emitMovl_i32r):
        (KJS::IA32MacroAssembler::emitMovl_i32m):
        (KJS::IA32MacroAssembler::emitLeal_mr):
        (KJS::IA32MacroAssembler::emitRet):
        (KJS::IA32MacroAssembler::JmpSrc::JmpSrc):
        (KJS::IA32MacroAssembler::JmpDst::JmpDst):
        (KJS::IA32MacroAssembler::emitCall):
        (KJS::IA32MacroAssembler::label):
        (KJS::IA32MacroAssembler::emitUnlinkedJmp):
        (KJS::IA32MacroAssembler::emitUnlinkedJne):
        (KJS::IA32MacroAssembler::emitUnlinkedJe):
        (KJS::IA32MacroAssembler::emitUnlinkedJl):
        (KJS::IA32MacroAssembler::emitUnlinkedJle):
        (KJS::IA32MacroAssembler::emitUnlinkedJge):
        (KJS::IA32MacroAssembler::emitUnlinkedJae):
        (KJS::IA32MacroAssembler::emitUnlinkedJo):
        (KJS::IA32MacroAssembler::emitPredictionNotTaken):
        (KJS::IA32MacroAssembler::link):
        (KJS::IA32MacroAssembler::copy):
        * wtf/Platform.h:

2008-08-26  Oliver Hunt  <oliver@apple.com>

        RS=Maciej.

        Enabled -fomit-frame-pointer on Release and Production builds, add additional Profiling build config for shark, etc.

        * JavaScriptCore.xcodeproj/project.pbxproj:

=== Start merge of squirrelfish-extreme ===

2008-09-06  Cameron Zwarich  <cwzwarich@uwaterloo.ca>

        Reviewed by Maciej Stachowiak.

        Fix the Mac Debug build by adding symbols that are exported only in a
        Debug configuration.

        * Configurations/JavaScriptCore.xcconfig:
        * DerivedSources.make:
        * JavaScriptCore.Debug.exp: Added.
        * JavaScriptCore.base.exp: Copied from JavaScriptCore.exp.
        * JavaScriptCore.exp: Removed.
        * JavaScriptCore.xcodeproj/project.pbxproj:

2008-09-05  Darin Adler  <darin@apple.com>

        Reviewed by Cameron Zwarich.

        - https://bugs.webkit.org/show_bug.cgi?id=20681
          JSPropertyNameIterator functions need to be inlined

        1.007x as fast on SunSpider overall
        1.081x as fast on SunSpider math-cordic

        * VM/JSPropertyNameIterator.cpp: Moved functions out of here.
        * VM/JSPropertyNameIterator.h:
        (KJS::JSPropertyNameIterator::JSPropertyNameIterator): Moved
        this into the header and marked it inline.
        (KJS::JSPropertyNameIterator::create): Ditto.
        (KJS::JSPropertyNameIterator::next): Ditto.

2008-09-05  Darin Adler  <darin@apple.com>

        Reviewed by Geoffrey Garen.

        - fix https://bugs.webkit.org/show_bug.cgi?id=20673
          single-character strings are churning in the Identifier table

        1.007x as fast on SunSpider overall
        1.167x as fast on SunSpider string-fasta

        * JavaScriptCore.exp: Updated.
        * kjs/SmallStrings.cpp:
        (KJS::SmallStrings::singleCharacterStringRep): Added.
        * kjs/SmallStrings.h: Added singleCharacterStringRep for clients that
        need just a UString, not a JSString.
        * kjs/identifier.cpp:
        (KJS::Identifier::add): Added special cases for single character strings
        so that the UString::Rep that ends up in the identifier table is the one
        from the single-character string optimization; otherwise we end up having
        to look it up in the identifier table over and over again.
        (KJS::Identifier::addSlowCase): Ditto.
        (KJS::Identifier::checkSameIdentifierTable): Made this function an empty
        inline in release builds so that callers don't have to put #ifndef NDEBUG
        at each call site.
        * kjs/identifier.h:
        (KJS::Identifier::add): Removed #ifndef NDEBUG around the calls to
        checkSameIdentifierTable.
        (KJS::Identifier::checkSameIdentifierTable): Added. Empty inline version
        for NDEBUG builds.

2008-09-05  Mark Rowe  <mrowe@apple.com>

        Build fix.

        * kjs/JSObject.h: Move the inline virtual destructor after a non-inline
        virtual function so that the symbol for the vtable is not marked as a
        weakly exported symbol.

2008-09-05  Darin Adler  <darin@apple.com>

        Reviewed by Sam Weinig.

        - fix https://bugs.webkit.org/show_bug.cgi?id=20671
          JavaScriptCore string manipulation spends too much time in memcpy

        1.011x as fast on SunSpider overall
        1.028x as fast on SunSpider string tests

        For small strings, use a loop rather than calling memcpy. The loop can
        be faster because there's no function call overhead, and because it can
        assume the pointers are aligned instead of checking that. Currently the
        threshold is set at 20 characters, based on some testing on one particular
        computer. Later we can tune this for various platforms by setting
        USTRING_COPY_CHARS_INLINE_CUTOFF appropriately, but it does no great harm
        if not perfectly tuned.

        * kjs/ustring.cpp:
        (KJS::overflowIndicator): Removed bogus const.
        (KJS::maxUChars): Ditto.
        (KJS::copyChars): Added.
        (KJS::UString::Rep::createCopying): Call copyChars instead of memcpy.
        Also eliminated need for const_cast.
        (KJS::UString::expandPreCapacity): Ditto.
        (KJS::concatenate): Ditto.
        (KJS::UString::spliceSubstringsWithSeparators): Ditto.
        (KJS::UString::append): Ditto.

2008-09-05  Kevin McCullough  <kmccullough@apple.com>

        Reviewed by Sam and Alexey.

        Make the profiler work with a null exec state.  This will allow other
        applications start the profiler to get DTrace probes going without
        needing a WebView.

        * ChangeLog:
        * profiler/ProfileGenerator.cpp:
        (KJS::ProfileGenerator::ProfileGenerator):
        (KJS::ProfileGenerator::willExecute):
        (KJS::ProfileGenerator::didExecute):
        * profiler/Profiler.cpp:
        (KJS::Profiler::startProfiling):
        (KJS::Profiler::stopProfiling):
        (KJS::dispatchFunctionToProfiles):

2008-09-04  Gavin Barraclough  <barraclough@apple.com>

        Reviewed by Geoffrey Garen.
        
        Fixed an off-by-one error that would cause the StructureIDChain to
        be one object too short.
        
        Can't construct a test case because other factors make this not crash
        (yet!).

        * kjs/StructureID.cpp:
        (KJS::StructureIDChain::StructureIDChain):

2008-09-04  Kevin Ollivier  <kevino@theolliviers.com>

        wx build fixes.

        * JavaScriptCoreSources.bkl:

2008-09-04  Mark Rowe  <mrowe@apple.com>

        Reviewed by Eric Seidel.

        Fix https://bugs.webkit.org/show_bug.cgi?id=20639.
        Bug 20639: ENABLE_DASHBOARD_SUPPORT does not need to be a FEATURE_DEFINE

        * Configurations/JavaScriptCore.xcconfig: Remove ENABLE_DASHBOARD_SUPPORT from FEATURE_DEFINES.
        * wtf/Platform.h: Set ENABLE_DASHBOARD_SUPPORT for PLATFORM(MAC).

2008-09-04  Adele Peterson  <adele@apple.com>

        Build fix.

        * JavaScriptCore.vcproj/JavaScriptCore/JavaScriptCore.vcproj:
        * JavaScriptCore.vcproj/WTF/WTF.vcproj:
        * JavaScriptCore.vcproj/jsc/jsc.vcproj:

2008-09-04  Mark Rowe  <mrowe@apple.com>

        Mac build fix.

        * kjs/config.h: Only check the value of HAVE_CONFIG_H if it is defined.

2008-09-04  Marco Barisione  <marco.barisione@collabora.co.uk>

        Reviewed by Eric Seidel.

        http://bugs.webkit.org/show_bug.cgi?id=20380
        [GTK][AUTOTOOLS] Include autotoolsconfig.h from config.h

        * kjs/config.h: Include the configuration header generated by
        autotools if available.

2008-09-04  Tor Arne Vestbø  <tavestbo@trolltech.com>

        Reviewed by Simon.

        Fix the QtWebKit build to match changes in r36016

        * JavaScriptCore.pri:

2008-09-04  Mark Rowe  <mrowe@apple.com>

        Fix the 64-bit build.

        * VM/CodeBlock.cpp:
        (KJS::CodeBlock::printStructureID): Store the instruction offset into an unsigned local
        to avoid a warning related to format specifiers.
        (KJS::CodeBlock::printStructureIDs): Ditto.

2008-09-04  Cameron Zwarich  <cwzwarich@uwaterloo.ca>

        Rubber-stamped by Oliver Hunt.

        Correct the spelling of 'entryIndices'.

        * kjs/PropertyMap.cpp:
        (KJS::PropertyMap::get):
        (KJS::PropertyMap::getLocation):
        (KJS::PropertyMap::put):
        (KJS::PropertyMap::insert):
        (KJS::PropertyMap::remove):
        (KJS::PropertyMap::checkConsistency):
        * kjs/PropertyMap.h:
        (KJS::PropertyMapHashTable::entries):
        (KJS::PropertyMap::getOffset):
        (KJS::PropertyMap::putOffset):
        (KJS::PropertyMap::offsetForTableLocation):

2008-09-03  Geoffrey Garen  <ggaren@apple.com>

        Reviewed by Cameron Zwarich.
        
        Fixed <rdar://problem/6193925> REGRESSION: Crash occurs at
        KJS::Machine::privateExecute() when attempting to load my Mobile Gallery
        (http://www.me.com/gallery/#home)
        
        also
        
        https://bugs.webkit.org/show_bug.cgi?id=20633 Crash in privateExecute
        @ cs.byu.edu
        
        The underlying problem was that we would cache prototype properties
        even if the prototype was a dictionary.
        
        The fix is to transition a prototype back from dictionary to normal
        status when an opcode caches access to it. (This is better than just
        refusing to cache, since a heavily accessed prototype is almost
        certainly not a true dictionary.)

        * VM/Machine.cpp:
        (KJS::Machine::tryCacheGetByID):
        * kjs/JSObject.h:

2008-09-03  Eric Seidel  <eric@webkit.org>

        Reviewed by Sam.

        Clean up Platform.h and add PLATFORM(CHROMIUM), PLATFORM(SKIA) and USE(V8_BINDINGS)

        * Configurations/JavaScriptCore.xcconfig: add missing ENABLE_*
        * wtf/ASCIICType.h: include <wtf/Assertions.h> since it depends on it.
        * wtf/Platform.h:

2008-09-03  Kevin McCullough  <kmccullough@apple.com>

        Reviewed by Tim.

        Remove the rest of the "zombie" code from the profiler.
        - There is no longer a need for the ProfilerClient callback mechanism.

        * API/JSProfilerPrivate.cpp:
        (JSStartProfiling):
        * JavaScriptCore.exp:
        * profiler/HeavyProfile.h:
        * profiler/ProfileGenerator.cpp:
        (KJS::ProfileGenerator::create):
        (KJS::ProfileGenerator::ProfileGenerator):
        * profiler/ProfileGenerator.h:
        (KJS::ProfileGenerator::profileGroup):
        * profiler/Profiler.cpp:
        (KJS::Profiler::startProfiling):
        (KJS::Profiler::stopProfiling): Immediately return the profile when
        stopped instead of using a callback.
        * profiler/Profiler.h:
        * profiler/TreeProfile.h:

2008-09-03  Adele Peterson  <adele@apple.com>

        Build fix.

        * wtf/win/MainThreadWin.cpp:

2008-09-02  Kevin McCullough  <kmccullough@apple.com>

        Reviewed by Darin and Tim.

        Remove most of the "zombie" mode from the profiler.  Next we will need
        to remove the client callback mechanism in profiles.

        - This simplifies the code, leverages the recent changes I've made in
        getting line numbers from SquirrelFish, and is a slight speed
        improvement on SunSpider.
        - Also the "zombie" mode was a constant source of odd edge cases and
        obscure bugs so it's good to remove since all of its issues may not have
        been found.

        * API/JSProfilerPrivate.cpp: No need to call didFinishAllExecution() any
        more.
        (JSEndProfiling):
        * JavaScriptCore.exp: Export the new signature of retrieveLastCaller()
        * VM/Machine.cpp:
        (KJS::Machine::execute): No need to call didFinishAllExecution() any
        more.
        (KJS::Machine::retrieveCaller): Now operates on InternalFunctions now
        since the RegisterFile is no longer guaranteeded to store only
        JSFunctions
        (KJS::Machine::retrieveLastCaller): Now also retrieve the function's
        name
        (KJS::Machine::callFrame): A result of changing retrieveCaller()
        * VM/Machine.h:
        * VM/Register.h: 
        * kjs/JSGlobalObject.cpp:
        (KJS::JSGlobalObject::~JSGlobalObject):
        * kjs/nodes.h:
        * profiler/ProfileGenerator.cpp:
        (KJS::ProfileGenerator::create): Now pass the original exec and get the
        global exec and client when necessary.  We need the original exec so we
        can have the stack frame where profiling started.
        (KJS::ProfileGenerator::ProfileGenerator): ditto.
        (KJS::ProfileGenerator::addParentForConsoleStart): This is where the 
        parent to star of the profile is added, if there is one.
        (KJS::ProfileGenerator::willExecute): Remove uglyness!
        (KJS::ProfileGenerator::didExecute): Ditto!
        (KJS::ProfileGenerator::stopProfiling):
        (KJS::ProfileGenerator::removeProfileStart): Use a better way to find
        and remove the function we are looking for.
        (KJS::ProfileGenerator::removeProfileEnd): Ditto.
        * profiler/ProfileGenerator.h:
        (KJS::ProfileGenerator::client):
        * profiler/ProfileNode.cpp:
        (KJS::ProfileNode::removeChild): Add a better way to remove a child from
        a ProfileNode.
        (KJS::ProfileNode::stopProfiling):
        (KJS::ProfileNode::debugPrintData): Modified a debug-only diagnostic
        function to be sane.
        * profiler/ProfileNode.h:
        * profiler/Profiler.cpp: Change to pass the original exec state.
        (KJS::Profiler::startProfiling):
        (KJS::Profiler::stopProfiling):
        (KJS::Profiler::willExecute):
        (KJS::Profiler::didExecute):
        (KJS::Profiler::createCallIdentifier):
        * profiler/Profiler.h:

2008-09-01  Alexey Proskuryakov  <ap@webkit.org>

        Reviewed by Darin Adler.

        Implement callOnMainThreadAndWait().

        This will be useful when a background thread needs to perform UI calls synchronously
        (e.g. an openDatabase() call cannot return until the user answers to a confirmation dialog).

        * wtf/MainThread.cpp:
        (WTF::FunctionWithContext::FunctionWithContext): Added a ThreadCondition member. When
        non-zero, the condition is signalled after the function is called.
        (WTF::mainThreadFunctionQueueMutex): Renamed from functionQueueMutex, sinc this is no longer
        static. Changed to be initialized from initializeThreading() to avoid lock contention.
        (WTF::initializeMainThread): On non-Windows platforms, just call mainThreadFunctionQueueMutex.
        (WTF::dispatchFunctionsFromMainThread): Signal synchronous calls when done.
        (WTF::callOnMainThread): Updated for functionQueueMutex rename.
        (WTF::callOnMainThreadAndWait):  Added.

        * wtf/MainThread.h: Added callOnMainThreadAndWait(); initializeMainThread() now exists on
        all platforms.

        * wtf/win/MainThreadWin.cpp: (WTF::initializeMainThread): Added a callOnMainThreadAndWait()
        call to initialize function queue mutex.

        * wtf/ThreadingGtk.cpp: (WTF::initializeThreading):
        * wtf/ThreadingPthreads.cpp: (WTF::initializeThreading):
        * wtf/ThreadingQt.cpp: (WTF::initializeThreading):
        Only initialize mainThreadIdentifier on non-Darwin platforms. It was not guaranteed to be
        accurate on Darwin.

2008-09-03  Geoffrey Garen  <ggaren@apple.com>

        Reviewed by Darin Adler.
        
        Use isUndefinedOrNull() instead of separate checks for each in op_eq_null
        and op_neq_null.

        * VM/Machine.cpp:
        (KJS::Machine::privateExecute):

2008-09-02  Csaba Osztrogonac  <oszi@inf.u-szeged.hu>

        Reviewed by Darin Adler.

        Bug 20296: OpcodeStats doesn't build on platforms which don't have mergesort().
        <https://bugs.webkit.org/show_bug.cgi?id=20296>

        * VM/Opcode.cpp:
        (KJS::OpcodeStats::~OpcodeStats): mergesort() replaced with qsort()

2008-09-02  Geoffrey Garen  <ggaren@apple.com>

        Reviewed by Oliver Hunt.
        
        Fast path for array.length and string.length.
        
        SunSpider says 0.5% faster.

2008-09-02  Geoffrey Garen  <ggaren@apple.com>

        Reviewed by Anders Carlsson.
        
        Added optimized paths for comparing to null.
        
        SunSpider says 0.5% faster.

2008-09-02  Geoffrey Garen  <ggaren@apple.com>

        Reviewed by Sam Weinig.

        Changed jsDriver.pl to dump the exact text you would need in order to
        reproduce a test result. This enables a fast workflow where you copy
        and paste a test failure in the terminal.

        * tests/mozilla/jsDriver.pl:

2008-09-02  Geoffrey Garen  <ggaren@apple.com>

        Reviewed by Sam Weinig.
        
        Implemented the rest of Darin's review comments for the 09-01 inline
        caching patch.
        
        SunSpider says 0.5% faster, but that seems like noise.

        * JavaScriptCore.xcodeproj/project.pbxproj: Put PutPropertySlot into
        its own file, and added BatchedTransitionOptimizer.

        * VM/CodeBlock.cpp:
        (KJS::CodeBlock::~CodeBlock): Use array indexing instead of a pointer
        iterator.

        * VM/CodeGenerator.cpp:
        (KJS::CodeGenerator::CodeGenerator): Used BatchedTransitionOptimizer to
        make batched put and remove for declared variables fast, without forever
        pessimizing the global object. Removed the old getDirect/removeDirect hack
        that tried to do the same in a more limited way.

        * VM/CodeGenerator.h: Moved IdentifierRepHash to the KJS namespace since
        it doesn't specialize anything in WTF.

        * VM/Machine.cpp:
        (KJS::Machine::Machine): Nixed the DummyConstruct tag because it was
        confusingly named.

        (KJS::Machine::execute):  Used BatchedTransitionOptimizer, as above. Fixed
        up some comments.

        (KJS::cachePrototypeChain): Cast to JSObject*, since it's more specific.

        (KJS::Machine::tryCachePutByID): Use isNull() instead of comparing to
        jsNull(), since isNull() leaves more options open for the future.
        (KJS::Machine::tryCacheGetByID): ditto
        (KJS::Machine::privateExecute): ditto

        * VM/SamplingTool.cpp:
        (KJS::SamplingTool::dump): Use C++-style cast, to match our style
        guidelines.

        * kjs/BatchedTransitionOptimizer.h: Added. New class that allows host
        code to add a batch of properties to an object in an efficient way.

        * kjs/JSActivation.cpp: Use isNull(), as above.

        * kjs/JSArray.cpp: Get rid of DummyConstruct tag, as above.
        * kjs/JSArray.h:

        * kjs/JSGlobalData.cpp: Nixed two unused StructureIDs.
        * kjs/JSGlobalData.h:

        * kjs/JSImmediate.cpp: Use isNull(), as above.

        * kjs/JSObject.cpp:
        (KJS::JSObject::mark): Moved mark tracing code elsewhere, to make this
        function more readable.

        (KJS::JSObject::put): Use isNull(), as above.

        (KJS::JSObject::createInheritorID): Return a raw pointer, since the
        object is owned by a data member, not necessarily the caller.
        * kjs/JSObject.h:

        * kjs/JSString.cpp: Use isNull(), as above.

        * kjs/PropertyMap.h: Updated to use PropertySlot::invalidOffset.

        * kjs/PropertySlot.h: Changed KJS_INVALID_OFFSET to WTF::notFound
        because C macros are so 80's.

        * kjs/PutPropertySlot.h: Added. Split out of PropertySlot.h. Also renamed
        PutPropertySlot::SlotType to PutPropertySlot::Type, and slotBase to base,
        since "slot" was redundant.

        * kjs/StructureID.cpp: Added a new transition *away* from dictionary
        status, to support BatchedTransitionOptimizer.

        (KJS::StructureIDChain::StructureIDChain): No need to store m_size as
        a data member, so keep it in a local, which might be faster.
        * kjs/StructureID.h:

        * kjs/SymbolTable.h: Moved IdentifierRepHash to KJS namespace, as above.
        * kjs/ustring.h:

2008-09-02  Adam Roben  <aroben@apple.com>

        Windows build fixes

        * JavaScriptCore.vcproj/JavaScriptCore/JavaScriptCore.vcproj: Add
        StructureID.{cpp,h} to the project. Also let VS reorder this file.
        * VM/CodeBlock.cpp: Include StringExtras so that snprintf will be
        defined on Windows.

2008-09-01  Sam Weinig  <sam@webkit.org>

        Fix release build.

        * JavaScriptCore.exp:

2008-09-01  Jan Michael Alonzo  <jmalonzo@webkit.org>

        Reviewed by Oliver Hunt.

        Gtk buildfix

        * GNUmakefile.am:
        * kjs/PropertyMap.cpp: rename Identifier.h to identifier.h
        * kjs/StructureID.cpp: include JSObject.h

2008-09-01  Geoffrey Garen  <ggaren@apple.com>

        Reviewed by Darin Adler.

        First cut at inline caching for access to vanilla JavaScript properties.
        
        SunSpider says 4% faster. Tests heavy on dictionary-like access have
        regressed a bit -- we have a lot of room to improve in this area,
        but this patch is over-ripe as-is.
        
        JSCells now have a StructureID that uniquely identifies their layout,
        and holds their prototype.
        
        JSValue::put takes a PropertySlot& argument, so it can fill in details
        about where it put a value, for the sake of caching.

        * VM/CodeGenerator.cpp:
        (KJS::CodeGenerator::CodeGenerator): Avoid calling removeDirect if we
        can, since it disables inline caching in the global object. This can
        probably improve in the future.

        * kjs/JSGlobalObject.cpp: Nixed reset(), since it complicates caching, and
        wasn't really necessary.

        * kjs/JSObject.cpp: Tweaked getter / setter behavior not to rely on the
        IsGetterSetter flag, since the flag was buggy. This is necessary in order
        to avoid accidentally accessing a getter / setter as a normal property.
        
        Also changed getter / setter creation to honor ReadOnly, matching Mozilla.
        
        * kjs/PropertyMap.cpp: Nixed clear(), since it complicates caching and
        isn't necessary.

        * kjs/Shell.cpp: Moved SamplingTool dumping outside the loop. This allows
        you to aggregate sampling of multiple files (or the same file repeatedly),
        which helped me track down regressions.

        * kjs/ustring.h: Moved IdentifierRepHash here to share it.

2008-09-01  Geoffrey Garen  <ggaren@apple.com>

        Reviewed by Sam Weinig.

        Eagerly allocate the Math object's numeric constants. This avoids
        constantly reallocating them in loops, and also ensures that the Math
        object will not use the single property optimization, which makes
        properties ineligible for caching.

        SunSpider reports a small speedup, in combination with inline caching.

        * kjs/MathObject.cpp:
        (KJS::MathObject::MathObject):
        (KJS::MathObject::getOwnPropertySlot):
        * kjs/MathObject.h:

2008-09-01  Jan Michael Alonzo  <jmalonzo@webkit.org>

        Gtk build fix, not reviewed.

        * GNUmakefile.am: Add SmallStrings.cpp in both release and debug builds

2008-08-31  Cameron Zwarich  <cwzwarich@uwaterloo.ca>

        Reviewed by Maciej Stachowiak.

        Bug 20577: REGRESSION (r36006): Gmail is broken
        <https://bugs.webkit.org/show_bug.cgi?id=20577>

        r36006 changed stringProtoFuncSubstr() so that it is uses the more
        efficient jsSubstring(), rather than using UString::substr() and then
        calling jsString(). However, the change did not account for the case
        where the start and the length of the substring extend beyond the length
        of the original string. This patch corrects that.

        * kjs/StringPrototype.cpp:
        (KJS::stringProtoFuncSubstr):

2008-08-31  Simon Hausmann  <hausmann@wekit.org>

        Unreviewed build fix (with gcc 4.3)

        * kjs/ustring.h: Properly forward declare operator== for UString and
        the the concatenate functions inside the KJS namespace.

2008-08-30  Darin Adler  <darin@apple.com>

        Reviewed by Maciej.

        - https://bugs.webkit.org/show_bug.cgi?id=20333
          improve JavaScript speed when handling single-character strings

        1.035x as fast on SunSpider overall.
        1.127x as fast on SunSpider string tests.
        1.910x as fast on SunSpider string-base64 test.

        * API/JSObjectRef.cpp:
        (JSObjectMakeFunction): Removed unneeded explicit construction of UString.

        * GNUmakefile.am: Added SmallStrings.h and SmallStrings.cpp.
        * JavaScriptCore.pri: Ditto.
        * JavaScriptCore.vcproj/JavaScriptCore/JavaScriptCore.vcproj:
        Ditto.
        * JavaScriptCore.xcodeproj/project.pbxproj: Ditto.
        * JavaScriptCoreSources.bkl: Ditto.

        * JavaScriptCore.exp: Updated.

        * VM/Machine.cpp:
        (KJS::jsAddSlowCase): Changed to use a code path that doesn't involve
        a UString constructor. This avoids an extra jump caused by the "in charge"
        vs. "not in charge" constructors.
        (KJS::jsAdd): Ditto.
        (KJS::jsTypeStringForValue): Adopted jsNontrivialString.

        * kjs/ArrayPrototype.cpp:
        (KJS::arrayProtoFuncToString): Adopted jsEmptyString.
        (KJS::arrayProtoFuncToLocaleString): Ditto.
        (KJS::arrayProtoFuncJoin): Ditto.
        * kjs/BooleanPrototype.cpp:
        (KJS::booleanProtoFuncToString): Adopted jsNontrivialString.
        * kjs/DateConstructor.cpp:
        (KJS::callDate): Ditto.
        * kjs/DatePrototype.cpp:
        (KJS::formatLocaleDate): Adopted jsEmptyString and jsNontrivialString.
        (KJS::dateProtoFuncToString): Ditto.
        (KJS::dateProtoFuncToUTCString): Ditto.
        (KJS::dateProtoFuncToDateString): Ditto.
        (KJS::dateProtoFuncToTimeString): Ditto.
        (KJS::dateProtoFuncToLocaleString): Ditto.
        (KJS::dateProtoFuncToLocaleDateString): Ditto.
        (KJS::dateProtoFuncToLocaleTimeString): Ditto.
        (KJS::dateProtoFuncToGMTString): Ditto.

        * kjs/ErrorPrototype.cpp:
        (KJS::ErrorPrototype::ErrorPrototype): Ditto.
        (KJS::errorProtoFuncToString): Ditto.

        * kjs/JSGlobalData.h: Added SmallStrings.

        * kjs/JSString.cpp:
        (KJS::jsString): Eliminated the overload that takes a const char*.
        Added code to use SmallStrings to get strings of small sizes rather
        than creating a new JSString every time.
        (KJS::jsSubstring): Added. Used when creating a string from a substring
        to avoid creating a JSString in cases where the substring will end up
        empty or as one character.
        (KJS::jsOwnedString): Added the same code as in jsString.

        * kjs/JSString.h: Added new functions jsEmptyString, jsSingleCharacterString,
        jsSingleCharacterSubstring, jsSubstring, and jsNontrivialString for various
        cases where we want to create JSString, and want special handling for small
        strings.
        (KJS::JSString::JSString): Added an overload that takes a PassRefPtr of
        a UString::Rep so you don't have to construct a UString; PassRefPtr can be
        more efficient.
        (KJS::jsEmptyString): Added.
        (KJS::jsSingleCharacterString): Added.
        (KJS::jsSingleCharacterSubstring): Added.
        (KJS::jsNontrivialString): Added.
        (KJS::JSString::getIndex): Adopted jsSingleCharacterSubstring.
        (KJS::JSString::getStringPropertySlot): Ditto.

        * kjs/NumberPrototype.cpp:
        (KJS::numberProtoFuncToFixed): Adopted jsNontrivialString.
        (KJS::numberProtoFuncToExponential): Ditto.
        (KJS::numberProtoFuncToPrecision): Ditto.

        * kjs/ObjectPrototype.cpp:
        (KJS::objectProtoFuncToLocaleString): Adopted toThisJSString.
        (KJS::objectProtoFuncToString): Adopted jsNontrivialString.

        * kjs/RegExpConstructor.cpp: Separated the lastInput value that's used
        with the lastOvector to return matches from the input value that can be
        changed via JavaScript. They will be equal in many cases, but not all.
        (KJS::RegExpConstructor::performMatch): Set input.
        (KJS::RegExpMatchesArray::RegExpMatchesArray): Ditto.
        (KJS::RegExpMatchesArray::fillArrayInstance): Adopted jsSubstring. Also,
        use input rather than lastInput in the appropriate place.
        (KJS::RegExpConstructor::getBackref): Adopted jsSubstring and jsEmptyString.
        Added code to handle the case where there is no backref -- before this
        depended on range checking in UString::substr which is not present in
        jsSubstring.
        (KJS::RegExpConstructor::getLastParen): Ditto.
        (KJS::RegExpConstructor::getLeftContext): Ditto.
        (KJS::RegExpConstructor::getRightContext): Ditto.
        (KJS::RegExpConstructor::getValueProperty): Use input rather than lastInput.
        Also adopt jsEmptyString.
        (KJS::RegExpConstructor::putValueProperty): Ditto.
        (KJS::RegExpConstructor::input): Ditto.

        * kjs/RegExpPrototype.cpp:
        (KJS::regExpProtoFuncToString): Adopt jsNonTrivialString. Also changed to
        use UString::append to append single characters rather than using += and
        a C-style string.

        * kjs/SmallStrings.cpp: Added.
        (KJS::SmallStringsStorage::SmallStringsStorage): Construct the
        buffer and UString::Rep for all 256 single-character strings for
        the U+0000 through U+00FF. This covers all the values used in
        the base64 test as well as most values seen elsewhere on the web
        as well. It's possible that later we might fix this to only work
        for U+0000 through U+007F but the others are used quite a bit in
        the current version of the base64 test.
        (KJS::SmallStringsStorage::~SmallStringsStorage): Free memory.
        (KJS::SmallStrings::SmallStrings): Create a set of small strings,
        initially not created; created later when they are used.
        (KJS::SmallStrings::~SmallStrings): Deallocate. Not left compiler
        generated because the SmallStringsStorage class's destructor needs
        to be visible.
        (KJS::SmallStrings::mark): Mark all the strings.
        (KJS::SmallStrings::createEmptyString): Create a cell for the
        empty string. Called only the first time.
        (KJS::SmallStrings::createSingleCharacterString): Create a cell
        for one of the single-character strings. Called only the first time.
        * kjs/SmallStrings.h: Added.

        * kjs/StringConstructor.cpp:
        (KJS::stringFromCharCodeSlowCase): Factored out of strinFromCharCode.
        Only used for cases where the caller does not pass exactly one argument.
        (KJS::stringFromCharCode): Adopted jsSingleCharacterString.
        (KJS::callStringConstructor): Adopted jsEmptyString.

        * kjs/StringObject.cpp:
        (KJS::StringObject::StringObject): Adopted jsEmptyString.

        * kjs/StringPrototype.cpp:
        (KJS::stringProtoFuncReplace): Adopted jsSubstring.
        (KJS::stringProtoFuncCharAt): Adopted jsEmptyString and
        jsSingleCharacterSubstring and also added a special case when the
        index is an immediate number to avoid conversion to and from floating
        point, since that's the common case.
        (KJS::stringProtoFuncCharCodeAt): Ditto.
        (KJS::stringProtoFuncMatch): Adopted jsSubstring and jsEmptyString.
        (KJS::stringProtoFuncSlice): Adopted jsSubstring and
        jsSingleCharacterSubstring. Also got rid of some unneeded locals and
        removed unneeded code to set the length property of the array, since it
        is automatically updated as values are added to the array.
        (KJS::stringProtoFuncSplit): Adopted jsEmptyString.
        (KJS::stringProtoFuncSubstr): Adopted jsSubstring.
        (KJS::stringProtoFuncSubstring): Ditto.

        * kjs/collector.cpp:
        (KJS::Heap::collect): Added a call to mark SmallStrings.

        * kjs/ustring.cpp:
        (KJS::UString::expandedSize): Made this a static member function since
        it doesn't need to look at any data members.
        (KJS::UString::expandCapacity): Use a non-inline function, makeNull, to
        set the rep to null in failure cases. This avoids adding a PIC branch for
        the normal case when there is no failure.
        (KJS::UString::expandPreCapacity): Ditto.
        (KJS::UString::UString): Ditto.
        (KJS::concatenate): Refactored the concatenation constructor into this
        separate function. Calling the concatenation constructor was leading to
        an extra branch because of the in-charge vs. not-in-charge versions not
        both being inlined, and this was showing up as nearly 1% on Shark. Also
        added a special case for when the second string is a single character,
        since it's a common idiom to build up a string that way and we can do
        things much more quickly, without involving memcpy for example. Also
        adopted the non-inline function, nullRep, for the same reason given for
        makeNull above.
        (KJS::UString::append): Adopted makeNull for failure cases.
        (KJS::UString::operator=): Ditto.
        (KJS::UString::toDouble): Added a special case for converting single
        character strings to numbers. We're doing this a ton of times while
        running the base64 test.
        (KJS::operator==): Added special cases so we can compare single-character
        strings without calling memcmp. Later we might want to special case other
        short lengths similarly.
        (KJS::UString::makeNull): Added.
        (KJS::UString::nullRep): Added.
        * kjs/ustring.h: Added declarations for the nullRep and makeNull. Changed
        expandedSize to be a static member function. Added a declaration of the
        concatenate function. Removed the concatenation constructor. Rewrote
        operator+ to use the concatenate function.

2008-08-29  Anders Carlsson  <andersca@apple.com>

        Build fix.

        * VM/Machine.cpp:
        (KJS::getCPUTime):

2008-08-29  Anders Carlsson  <andersca@apple.com>

        Reviewed by Darin Adler.

        <rdar://problem/6174667> 
        When a machine is under heavy load, the Slow Script dialog often comes up many times and just gets in the way
        
        Instead of using clock time, use the CPU time spent executing the current thread when
        determining if the script has been running for too long.
        
        * VM/Machine.cpp:
        (KJS::getCPUTime):
        (KJS::Machine::checkTimeout):

2008-08-28  Cameron Zwarich  <cwzwarich@uwaterloo.ca>

        Rubber-stamped by Sam Weinig.

        Change 'term' to 'expr' in variable names to standardize terminology.

        * kjs/nodes.cpp:
        (KJS::BinaryOpNode::emitCode):
        (KJS::ReverseBinaryOpNode::emitCode):
        (KJS::ThrowableBinaryOpNode::emitCode):
        * kjs/nodes.h:
        (KJS::BinaryOpNode::BinaryOpNode):
        (KJS::ReverseBinaryOpNode::ReverseBinaryOpNode):
        (KJS::MultNode::):
        (KJS::DivNode::):
        (KJS::ModNode::):
        (KJS::AddNode::):
        (KJS::SubNode::):
        (KJS::LeftShiftNode::):
        (KJS::RightShiftNode::):
        (KJS::UnsignedRightShiftNode::):
        (KJS::LessNode::):
        (KJS::GreaterNode::):
        (KJS::LessEqNode::):
        (KJS::GreaterEqNode::):
        (KJS::ThrowableBinaryOpNode::):
        (KJS::InstanceOfNode::):
        (KJS::InNode::):
        (KJS::EqualNode::):
        (KJS::NotEqualNode::):
        (KJS::StrictEqualNode::):
        (KJS::NotStrictEqualNode::):
        (KJS::BitAndNode::):
        (KJS::BitOrNode::):
        (KJS::BitXOrNode::):
        * kjs/nodes2string.cpp:
        (KJS::MultNode::streamTo):
        (KJS::DivNode::streamTo):
        (KJS::ModNode::streamTo):
        (KJS::AddNode::streamTo):
        (KJS::SubNode::streamTo):
        (KJS::LeftShiftNode::streamTo):
        (KJS::RightShiftNode::streamTo):
        (KJS::UnsignedRightShiftNode::streamTo):
        (KJS::LessNode::streamTo):
        (KJS::GreaterNode::streamTo):
        (KJS::LessEqNode::streamTo):
        (KJS::GreaterEqNode::streamTo):
        (KJS::InstanceOfNode::streamTo):
        (KJS::InNode::streamTo):
        (KJS::EqualNode::streamTo):
        (KJS::NotEqualNode::streamTo):
        (KJS::StrictEqualNode::streamTo):
        (KJS::NotStrictEqualNode::streamTo):
        (KJS::BitAndNode::streamTo):
        (KJS::BitXOrNode::streamTo):
        (KJS::BitOrNode::streamTo):

2008-08-28  Alp Toker  <alp@nuanti.com>

        GTK+ dist/build fix. List newly added header files.

        * GNUmakefile.am:

2008-08-28  Sam Weinig  <sam@webkit.org>

        Reviewed by Oliver Hunt.

        Change to throw a ReferenceError at runtime instead of a ParseError
        at parse time, when the left hand side expression of a for-in statement
        is not an lvalue.

        * kjs/grammar.y:
        * kjs/nodes.cpp:
        (KJS::ForInNode::emitCode):

2008-08-28  Alexey Proskuryakov  <ap@webkit.org>

        Not reviewed, build fix (at least for OpenBSD, posssibly more).

        https://bugs.webkit.org/show_bug.cgi?id=20545
        missing #include <unistd.h> in JavaScriptCore/VM/SamplingTool.cpp

        * VM/SamplingTool.cpp: add the missing include.

2008-08-26  Kevin McCullough  <kmccullough@apple.com>

        Reviewed by Geoff and Cameron.

        <rdar://problem/6174603> Hitting assertion in Register::codeBlock when
        loading facebook (20516).

        - This was a result of my line numbers change.  After a host function is
        called the stack does not get reset correctly.
        - Oddly this also appears to be a slight speedup on SunSpider.

        * VM/Machine.cpp:
        (KJS::Machine::privateExecute):

2008-08-26  Alexey Proskuryakov  <ap@webkit.org>

        Reviewed by Geoff and Tim.

        Export new API methods.

        * JavaScriptCore.exp:

2008-08-25  Kevin McCullough  <kmccullough@apple.com>

        Reviewed by Geoff, Tim and Mark.

        <rdar://problem/6150623> JSProfiler: It would be nice if the profiles
        in the console said what file and line number they came from
        - Lay the foundation for getting line numbers and other data from the
        JavaScript engine.  With the cleanup in kjs/ExecState this is actually
        a slight performance improvement.

        * JavaScriptCore.exp: Export retrieveLastCaller() for WebCore.
        * JavaScriptCore.xcodeproj/project.pbxproj:
        * VM/Machine.cpp: Now Host and JS functions set a call frame on the
        exec state, so this and the profiler code were pulled out of the
        branches.
        (KJS::Machine::privateExecute):
        (KJS::Machine::retrieveLastCaller): This get's the lineNumber, sourceID
        and sourceURL for the previously called function.
        * VM/Machine.h:
        * kjs/ExecState.cpp: Remove references to JSFunction since it's not used
        anywhere.
        * kjs/ExecState.h:

2008-08-25  Alexey Proskuryakov  <ap@webkit.org>

        Reviewed by Darin Adler.

        Ensure that JSGlobalContextRelease() performs garbage collection, even if there are other
        contexts in the current context's group.

        This is only really necessary when the last reference is released, but there is no way to
        determine that, and no harm in collecting slightly more often.

        * API/JSContextRef.cpp: (JSGlobalContextRelease): Explicitly collect the heap if it is not
        being destroyed.

2008-08-24  Cameron Zwarich  <cwzwarich@uwaterloo.ca>

        Reviewed by Oliver Hunt.

        Bug 20093: JSC shell does not clear exceptions after it executes toString on an expression
        <https://bugs.webkit.org/show_bug.cgi?id=20093>

        Clear exceptions after evaluating any code in the JSC shell. We do not
        report exceptions that are caused by calling toString on the final
        valued, but at least we avoid incorrect behaviour.

        Also, print any exceptions that occurred while evaluating code at the
        interactive prompt, not just while evaluating code from a file.

        * kjs/Shell.cpp:
        (runWithScripts):
        (runInteractive):

2008-08-24  Cameron Zwarich  <cwzwarich@uwaterloo.ca>

        Reviewed by Oliver.

        Remove an unnecessary RefPtr to a RegisterID.

        * kjs/nodes.cpp:
        (KJS::DeleteBracketNode::emitCode):

2008-08-24  Mark Rowe  <mrowe@apple.com>

        Reviewed by Oliver Hunt.

        Use the correct version number for when JSGlobalContextCreate was introduced.

        * API/JSContextRef.h:

2008-08-23  Cameron Zwarich  <cwzwarich@uwaterloo.ca>

        Rubber-stamped by Mark Rowe.

        Remove modelines.

        * API/APICast.h:
        * API/JSBase.cpp:
        * API/JSCallbackConstructor.cpp:
        * API/JSCallbackConstructor.h:
        * API/JSCallbackFunction.cpp:
        * API/JSCallbackFunction.h:
        * API/JSCallbackObject.cpp:
        * API/JSCallbackObject.h:
        * API/JSCallbackObjectFunctions.h:
        * API/JSClassRef.cpp:
        * API/JSContextRef.cpp:
        * API/JSObjectRef.cpp:
        * API/JSProfilerPrivate.cpp:
        * API/JSStringRef.cpp:
        * API/JSStringRefBSTR.cpp:
        * API/JSStringRefCF.cpp:
        * API/JSValueRef.cpp:
        * API/tests/JSNode.c:
        * API/tests/JSNode.h:
        * API/tests/JSNodeList.c:
        * API/tests/JSNodeList.h:
        * API/tests/Node.c:
        * API/tests/Node.h:
        * API/tests/NodeList.c:
        * API/tests/NodeList.h:
        * API/tests/minidom.c:
        * API/tests/minidom.js:
        * API/tests/testapi.c:
        * API/tests/testapi.js:
        * JavaScriptCore.pro:
        * kjs/FunctionConstructor.h:
        * kjs/FunctionPrototype.h:
        * kjs/JSArray.h:
        * kjs/JSString.h:
        * kjs/JSWrapperObject.cpp:
        * kjs/NumberConstructor.h:
        * kjs/NumberObject.h:
        * kjs/NumberPrototype.h:
        * kjs/lexer.h:
        * kjs/lookup.h:
        * wtf/Assertions.cpp:
        * wtf/Assertions.h:
        * wtf/HashCountedSet.h:
        * wtf/HashFunctions.h:
        * wtf/HashIterators.h:
        * wtf/HashMap.h:
        * wtf/HashSet.h:
        * wtf/HashTable.h:
        * wtf/HashTraits.h:
        * wtf/ListHashSet.h:
        * wtf/ListRefPtr.h:
        * wtf/Noncopyable.h:
        * wtf/OwnArrayPtr.h:
        * wtf/OwnPtr.h:
        * wtf/PassRefPtr.h:
        * wtf/Platform.h:
        * wtf/RefPtr.h:
        * wtf/RefPtrHashMap.h:
        * wtf/RetainPtr.h:
        * wtf/UnusedParam.h:
        * wtf/Vector.h:
        * wtf/VectorTraits.h:
        * wtf/unicode/Unicode.h:
        * wtf/unicode/icu/UnicodeIcu.h:

2008-08-22  Cameron Zwarich  <cwzwarich@uwaterloo.ca>

        Reviewed by Oliver.

        Some cleanup to match our coding style.

        * VM/CodeGenerator.h:
        * VM/Machine.cpp:
        (KJS::Machine::privateExecute):
        * kjs/ExecState.cpp:
        * kjs/ExecState.h:
        * kjs/completion.h:
        * kjs/identifier.cpp:
        (KJS::Identifier::equal):
        (KJS::CStringTranslator::hash):
        (KJS::CStringTranslator::equal):
        (KJS::CStringTranslator::translate):
        (KJS::UCharBufferTranslator::equal):
        (KJS::UCharBufferTranslator::translate):
        (KJS::Identifier::remove):
        * kjs/operations.h:

2008-08-20  Alexey Proskuryakov  <ap@webkit.org>

        Windows build fix.

        * API/WebKitAvailability.h: Define DEPRECATED_ATTRIBUTE.

2008-08-19  Alexey Proskuryakov  <ap@webkit.org>

        Reviewed by Geoff Garen.

        Bring back shared JSGlobalData and implicit locking, because too many clients rely on it.

        * kjs/JSGlobalData.cpp:
        (KJS::JSGlobalData::~JSGlobalData):
        (KJS::JSGlobalData::JSGlobalData): Re-add shared instance.
        (KJS::JSGlobalData::sharedInstanceExists): Ditto.
        (KJS::JSGlobalData::sharedInstance): Ditto.
        (KJS::JSGlobalData::sharedInstanceInternal): Ditto.

        * API/JSContextRef.h: Deprecated JSGlobalContextCreate(). Added a very conservative
        description of its threading model (nothing is allowed).

        * API/JSContextRef.cpp:
        (JSGlobalContextCreate): Use shared JSGlobalData.
        (JSGlobalContextCreateInGroup): Support passing NULL group to request a unique one.
        (JSGlobalContextRetain): Added back locking.
        (JSGlobalContextRelease): Ditto.
        (JSContextGetGlobalObject): Ditto.

        * API/tests/minidom.c: (main):
        * API/tests/testapi.c: (main):
        Switched to JSGlobalContextCreateInGroup() to avoid deprecation warnings.

        * JavaScriptCore.exp: Re-added JSLock methods. Added JSGlobalContextCreateInGroup (d'oh!).

        * API/JSBase.cpp:
        (JSEvaluateScript):
        (JSCheckScriptSyntax):
        (JSGarbageCollect):
        * API/JSCallbackConstructor.cpp:
        (KJS::constructJSCallback):
        * API/JSCallbackFunction.cpp:
        (KJS::JSCallbackFunction::call):
        * API/JSCallbackObjectFunctions.h:
        (KJS::::init):
        (KJS::::getOwnPropertySlot):
        (KJS::::put):
        (KJS::::deleteProperty):
        (KJS::::construct):
        (KJS::::hasInstance):
        (KJS::::call):
        (KJS::::getPropertyNames):
        (KJS::::toNumber):
        (KJS::::toString):
        (KJS::::staticValueGetter):
        (KJS::::callbackGetter):
        * API/JSObjectRef.cpp:
        (JSObjectMake):
        (JSObjectMakeFunctionWithCallback):
        (JSObjectMakeConstructor):
        (JSObjectMakeFunction):
        (JSObjectHasProperty):
        (JSObjectGetProperty):
        (JSObjectSetProperty):
        (JSObjectGetPropertyAtIndex):
        (JSObjectSetPropertyAtIndex):
        (JSObjectDeleteProperty):
        (JSObjectCallAsFunction):
        (JSObjectCallAsConstructor):
        (JSObjectCopyPropertyNames):
        (JSPropertyNameArrayRelease):
        (JSPropertyNameAccumulatorAddName):
        * API/JSValueRef.cpp:
        (JSValueIsEqual):
        (JSValueIsInstanceOfConstructor):
        (JSValueMakeNumber):
        (JSValueMakeString):
        (JSValueToNumber):
        (JSValueToStringCopy):
        (JSValueToObject):
        (JSValueProtect):
        (JSValueUnprotect):
        * ForwardingHeaders/JavaScriptCore/JSLock.h: Added.
        * GNUmakefile.am:
        * JavaScriptCore.pri:
        * JavaScriptCore.vcproj/JavaScriptCore/JavaScriptCore.vcproj:
        * JavaScriptCore.xcodeproj/project.pbxproj:
        * JavaScriptCoreSources.bkl:
        * kjs/AllInOneFile.cpp:
        * kjs/JSGlobalData.h:
        * kjs/JSGlobalObject.cpp:
        (KJS::JSGlobalObject::~JSGlobalObject):
        (KJS::JSGlobalObject::init):
        * kjs/JSLock.cpp: Added.
        (KJS::createJSLockCount):
        (KJS::JSLock::lockCount):
        (KJS::setLockCount):
        (KJS::JSLock::JSLock):
        (KJS::JSLock::lock):
        (KJS::JSLock::unlock):
        (KJS::JSLock::currentThreadIsHoldingLock):
        (KJS::JSLock::DropAllLocks::DropAllLocks):
        (KJS::JSLock::DropAllLocks::~DropAllLocks):
        * kjs/JSLock.h: Added.
        (KJS::JSLock::JSLock):
        (KJS::JSLock::~JSLock):
        * kjs/Shell.cpp:
        (functionGC):
        (jscmain):
        * kjs/collector.cpp:
        (KJS::Heap::~Heap):
        (KJS::Heap::heapAllocate):
        (KJS::Heap::setGCProtectNeedsLocking):
        (KJS::Heap::protect):
        (KJS::Heap::unprotect):
        (KJS::Heap::collect):
        * kjs/identifier.cpp:
        * kjs/interpreter.cpp:
        (KJS::Interpreter::checkSyntax):
        (KJS::Interpreter::evaluate):
        Re-added implicit locking.

2008-08-19  Kevin McCullough  <kmccullough@apple.com>

        Reviewed by Tim and Mark.

        Implement DTrace hooks for dashcode and instruments.

        * API/JSProfilerPrivate.cpp: Added. Expose SPI so that profiling can be
        turned on from a client.  The DTrace probes were added within the
        profiler mechanism for performance reasons so the profiler must be
        started to enable tracing.
        (JSStartProfiling):
        (JSEndProfiling):
        * API/JSProfilerPrivate.h: Added. Ditto.
        * JavaScriptCore.exp: Exposing the start/stop methods to clients.
        * JavaScriptCore.xcodeproj/project.pbxproj:
        * kjs/Tracing.d: Define the DTrace probes.
        * kjs/Tracing.h: Ditto.
        * profiler/ProfileGenerator.cpp: Implement the DTrace probes in the
        profiler.
        (KJS::ProfileGenerator::willExecute):
        (KJS::ProfileGenerator::didExecute):

2008-08-19  Steve Falkenburg  <sfalken@apple.com>

        Build fix.
        
        * kjs/operations.cpp:
        (KJS::equal):

2008-08-18  Timothy Hatcher  <timothy@apple.com>

        Fix an assertion when generating a heavy profile because the
        empty value and deleted value of CallIdentifier where equal.

        https://bugs.webkit.org/show_bug.cgi?id=20439

        Reviewed by Dan Bernstein.

        * profiler/CallIdentifier.h: Make the emptyValue for CallIdentifier
        use empty strings for URL and function name.

2008-08-12  Darin Adler  <darin@apple.com>

        Reviewed by Geoff.

        - eliminate JSValue::type()

        This will make it slightly easier to change the JSImmediate design without
        having to touch so many call sites.

        SunSpider says this change is a wash (looked like a slight speedup, but not
        statistically significant).

        * API/JSStringRef.cpp: Removed include of JSType.h.
        * API/JSValueRef.cpp: Removed include of JSType.h.
        (JSValueGetType): Replaced use of JSValue::type() with
        JSValue::is functions.

        * JavaScriptCore.exp: Updated.

        * VM/JSPropertyNameIterator.cpp: Removed type() implementation.
        (KJS::JSPropertyNameIterator::toPrimitive): Changed to take
        PreferredPrimitiveType argument instead of JSType.
        * VM/JSPropertyNameIterator.h: Ditto.

        * VM/Machine.cpp:
        (KJS::fastIsNumber): Updated for name change.
        (KJS::fastToInt32): Ditto.
        (KJS::fastToUInt32): Ditto.
        (KJS::jsAddSlowCase): Updated toPrimitive caller for change from
        JSType to PreferredPrimitiveType.
        (KJS::jsAdd): Replaced calls to JSValue::type() with calls to
        JSValue::isString().
        (KJS::jsTypeStringForValue): Replaced calls to JSValue::type()
        with multiple calls to JSValue::is -- we could make this a
        virtual function instead if we want to have faster performance.
        (KJS::Machine::privateExecute): Renamed JSImmediate::toTruncatedUInt32
        to JSImmediate::getTruncatedUInt32 for consistency with other functions.
        Changed two calls of JSValue::type() to JSValue::isString().

        * kjs/GetterSetter.cpp:
        (KJS::GetterSetter::toPrimitive): Changed to take
        PreferredPrimitiveType argument instead of JSType.
        (KJS::GetterSetter::isGetterSetter): Added.
        * kjs/GetterSetter.h:

        * kjs/JSCell.cpp:
        (KJS::JSCell::isString): Added.
        (KJS::JSCell::isGetterSetter): Added.
        (KJS::JSCell::isObject): Added.

        * kjs/JSCell.h: Eliminated type function. Added isGetterSetter.
        Made isString and isObject virtual. Changed toPrimitive to take
        PreferredPrimitiveType argument instead of JSType.
        (KJS::JSCell::isNumber): Use Heap::isNumber for faster performance.
        (KJS::JSValue::isGetterSetter): Added.
        (KJS::JSValue::toPrimitive): Changed to take
        PreferredPrimitiveType argument instead of JSType.

        * kjs/JSImmediate.h: Removed JSValue::type() and replaced
        JSValue::toTruncatedUInt32 with JSValue::getTruncatedUInt32.
        (KJS::JSImmediate::isEitherImmediate): Added.

        * kjs/JSNotAnObject.cpp:
        (KJS::JSNotAnObject::toPrimitive): Changed to take
        PreferredPrimitiveType argument instead of JSType.
        * kjs/JSNotAnObject.h: Ditto.
        * kjs/JSNumberCell.cpp:
        (KJS::JSNumberCell::toPrimitive): Ditto.
        * kjs/JSNumberCell.h:
        (KJS::JSNumberCell::toInt32): Renamed from fastToInt32. There's no
        other "slow" version of this once you have a JSNumberCell, so there's
        no need for "fast" in the name. It's a feature that this hides the
        base class toInt32, which does the same job less efficiently (and has
        an additional ExecState argument).
        (KJS::JSNumberCell::toUInt32): Ditto.

        * kjs/JSObject.cpp:
        (KJS::callDefaultValueFunction): Use isGetterSetter instead of type.
        (KJS::JSObject::getPrimitiveNumber): Use PreferredPrimitiveType.
        (KJS::JSObject::defaultValue): Ditto.
        (KJS::JSObject::defineGetter): Use isGetterSetter.
        (KJS::JSObject::defineSetter): Ditto.
        (KJS::JSObject::lookupGetter): Ditto.
        (KJS::JSObject::lookupSetter): Ditto.
        (KJS::JSObject::toNumber): Use PreferredPrimitiveType.
        (KJS::JSObject::toString): Ditto.
        (KJS::JSObject::isObject): Added.

        * kjs/JSObject.h:
        (KJS::JSObject::inherits): Call the isObject from JSCell; it's now
        hidden by our override of isObject.
        (KJS::JSObject::getOwnPropertySlotForWrite): Use isGetterSetter
        instead of type.
        (KJS::JSObject::getOwnPropertySlot): Ditto.
        (KJS::JSObject::toPrimitive): Use PreferredPrimitiveType.

        * kjs/JSString.cpp:
        (KJS::JSString::toPrimitive): Use PreferredPrimitiveType.
        (KJS::JSString::isString): Added.
        * kjs/JSString.h: Ditto.

        * kjs/JSValue.h: Removed type(), added isGetterSetter(). Added
        PreferredPrimitiveType enum and used it as the argument for the
        toPrimitive function.
        (KJS::JSValue::getBoolean): Simplified a bit an removed a branch.

        * kjs/collector.cpp:
        (KJS::typeName): Changed to use JSCell::is functions instead of
        calling JSCell::type.

        * kjs/collector.h:
        (KJS::Heap::isNumber): Renamed from fastIsNumber.

        * kjs/nodes.h: Added now-needed include of JSType, since the type
        is used here to record types of values in the tree.

        * kjs/operations.cpp:
        (KJS::equal): Rewrote to no longer depend on type().
        (KJS::strictEqual): Ditto.

2008-08-18  Kevin McCullough  <kmccullough@apple.com>

        Reviewed by Tim.

        If there are no nodes in a profile all the time should be attributed to
        (idle)

        * profiler/Profile.cpp: If ther are no nodes make sure we still process
        the head.
        (KJS::Profile::forEach):
        * profiler/ProfileGenerator.cpp: Remove some useless code.
        (KJS::ProfileGenerator::stopProfiling):

2008-08-18  Alexey Proskuryakov  <ap@webkit.org>

        Reviewed by Maciej.

        Make JSGlobalContextRetain/Release actually work.

        * API/JSContextRef.cpp:
        (JSGlobalContextRetain):
        (JSGlobalContextRelease):
        Ref/deref global data to give checking for globalData.refCount() some sense.

        * API/tests/testapi.c: (main): Added a test for this bug.

        * kjs/JSGlobalData.cpp:
        (KJS::JSGlobalData::~JSGlobalData):
        While checking for memory leaks, found that JSGlobalData::emptyList has changed to
        a pointer, but it was not destructed, causing a huge leak in run-webkit-tests --threaded.

2008-08-17  Cameron Zwarich  <cwzwarich@uwaterloo.ca>

        Reviewed by Maciej.

        Change the counting of constants so that preincrement and predecrement of
        const local variables are considered unexpected loads.

        * kjs/nodes.cpp:
        (KJS::PrefixResolveNode::emitCode):
        * kjs/nodes.h:
        (KJS::ScopeNode::neededConstants):

2008-08-17  Oliver Hunt  <oliver@apple.com>

        Reviewed by Cameron Zwarich.

        <rdar://problem/6150322> In Gmail, a crash occurs at KJS::Machine::privateExecute() when applying list styling to text after a quote had been removed
        <https://bugs.webkit.org/show_bug.cgi?id=20386>

        This crash was caused by "depth()" incorrectly determining the scope depth 
        of a 0 depth function without a full scope chain.  Because such a function
        would not have an activation the depth function would return the scope depth
        of the parent frame, thus triggering an incorrect unwind.  Any subsequent 
        look up that walked the scope chain would result in incorrect behaviour,
        leading to a crash or incorrect variable resolution.  This can only actually
        happen in try...finally statements as that's the only path that can result in
        the need to unwind the scope chain, but not force the function to need a
        full scope chain.

        The fix is simply to check for this case before attempting to walk the scope chain.

        * VM/Machine.cpp:
        (KJS::depth):
        (KJS::Machine::throwException):

2008-08-17  Cameron Zwarich  <cwzwarich@uwaterloo.ca>

        Reviewed by Maciej.

        Bug 20419: Remove op_jless
        <https://bugs.webkit.org/show_bug.cgi?id=20419>

        Remove op_jless, which is rarely used now that we have op_loop_if_less.

        * VM/CodeBlock.cpp:
        (KJS::CodeBlock::dump):
        * VM/CodeGenerator.cpp:
        (KJS::CodeGenerator::emitJumpIfTrue):
        * VM/Machine.cpp:
        (KJS::Machine::privateExecute):
        * VM/Opcode.h:

2008-08-17  Cameron Zwarich  <cwzwarich@uwaterloo.ca>

        Reviewed by Dan Bernstein.

        Fix a typo in r35807 that is also causing build failures for
        non-AllInOne builds.

        * kjs/NumberConstructor.cpp:

2008-08-17  Geoffrey Garen  <ggaren@apple.com>

        Reviewed by Cameron Zwarich.

        Made room for a free word in JSCell.
        
        SunSpider says no change.
        
        I changed JSCallbackObjectData, Arguments, JSArray, and RegExpObject to
        store auxiliary data in a secondary structure.

        I changed InternalFunction to store the function's name in the property
        map.
        
        I changed JSGlobalObjectData to use a virtual destructor, so WebCore's
        JSDOMWindowBaseData could inherit from it safely. (It's a strange design
        for JSDOMWindowBase to allocate an object that JSGlobalObject deletes,
        but that's really our only option, given the size constraint.)
        
        I also added a bunch of compile-time ASSERTs, and removed lots of comments
        in JSObject.h because they were often out of date, and they got in the
        way of reading what was actually going on.
        
        Also renamed JSArray::getLength to JSArray::length, to match our style
        guidelines.

2008-08-16  Geoffrey Garen  <ggaren@apple.com>

        Reviewed by Oliver Hunt.
        
        Sped up property access for array.length and string.length by adding a
        mechanism for returning a temporary value directly instead of returning
        a pointer to a function that retrieves the value.
        
        Also removed some unused cruft from PropertySlot.
        
        SunSpider says 0.5% - 1.2% faster.

        NOTE: This optimization is not a good idea in general, because it's
        actually a pessimization in the case of resolve for assignment,
        and it may get in the way of other optimizations in the future.
        
2008-08-16  Dan Bernstein  <mitz@apple.com>

        Reviewed by Geoffrey Garen.

        Disable dead code stripping in debug builds.

        * Configurations/Base.xcconfig:
        * JavaScriptCore.xcodeproj/project.pbxproj:

2008-08-15  Mark Rowe  <mrowe@apple.com>

        Reviewed by Oliver Hunt.

        <rdar://problem/6143072> FastMallocZone's enumeration code makes assumptions about handling of remote memory regions that overlap

        * wtf/FastMalloc.cpp:
        (WTF::TCMalloc_Central_FreeList::enumerateFreeObjects): Don't directly compare pointers mapped into the local process with
        a pointer that has not been mapped.  Instead, calculate a local address for the pointer and compare with that.
        (WTF::TCMallocStats::FreeObjectFinder::findFreeObjects): Pass in the remote address of the central free list so that it can
        be used when calculating local addresses.
        (WTF::TCMallocStats::FastMallocZone::enumerate): Ditto.

2008-08-15  Mark Rowe  <mrowe@apple.com>

        Rubber-stamped by Geoff Garen.

        <rdar://problem/6139914> Please include a _debug version of JavaScriptCore framework

        * Configurations/Base.xcconfig: Factor out the debug-only settings so that they can shared
        between the Debug configuration and debug Production variant.
        * JavaScriptCore.xcodeproj/project.pbxproj: Enable the debug variant.

2008-08-15  Mark Rowe  <mrowe@apple.com>

        Fix the 64-bit build.

        Add extra cast to avoid warnings about loss of precision when casting from
        JSValue* to an integer type.

        * kjs/JSImmediate.h:
        (KJS::JSImmediate::intValue):
        (KJS::JSImmediate::uintValue):

2008-08-15  Alexey Proskuryakov  <ap@webkit.org>

        Still fixing Windows build.

        * JavaScriptCore.vcproj/JavaScriptCore/JavaScriptCoreGenerated.make: Added OpaqueJSString
        to yet another place.

2008-08-15  Alexey Proskuryakov  <ap@webkit.org>

        Trying to fix non-Apple builds.

        * ForwardingHeaders/JavaScriptCore/OpaqueJSString.h: Added.

2008-08-15  Gavin Barraclough  <barraclough@apple.com>

        Reviewed by Geoff Garen.

        Allow JSImmediate to hold 31 bit signed integer immediate values.  The low two bits of a
        JSValue* are a tag, with the tag value 00 indicating the JSValue* is a pointer to a
        JSCell.  Non-zero tag values used to indicate that the JSValue* is not a real pointer,
        but instead holds an immediate value encoded within the pointer.  This patch changes the
        encoding so both the tag values 01 and 11 indicate the value is a signed integer, allowing
        a 31 bit value to be stored.  All other immediates are tagged with the value 10, and
        distinguished by a secondary tag.

        Roughly +2% on SunSpider.

        * kjs/JSImmediate.h: Encoding of JSImmediates has changed - see comment at head of file for
                             descption of new layout.

2008-08-15  Alexey Proskuryakov  <ap@webkit.org>

        More build fixes.

        * API/OpaqueJSString.h: Add a namespace to friend declaration to appease MSVC.
        * API/JSStringRefCF.h: (JSStringCreateWithCFString) Cast UniChar* to UChar* explicitly.
        * JavaScriptCore.exp: Added OpaqueJSString::create(const KJS::UString&) to fix WebCore build.

2008-08-15  Alexey Proskuryakov  <ap@webkit.org>

        Build fix.

        * JavaScriptCore.xcodeproj/project.pbxproj: Marked OpaqueJSString as private

        * kjs/identifier.cpp:
        (KJS::Identifier::checkSameIdentifierTable):
        * kjs/identifier.h:
        (KJS::Identifier::add):
        Since checkSameIdentifierTable is exported for debug build's sake, gcc wants it to be
        non-inline in release builds, too.

        * JavaScriptCore.exp: Don't export inline OpaqueJSString destructor.

2008-08-15  Alexey Proskuryakov  <ap@webkit.org>

        Reviewed by Geoff Garen.

        JSStringRef is created context-free, but can get linked to one via an identifier table,
        breaking an implicit API contract.

        Made JSStringRef point to OpaqueJSString, which is a new string object separate from UString.

        * API/APICast.h: Removed toRef/toJS conversions for JSStringRef, as this is no longer a
        simple typecast.

        * kjs/identifier.cpp:
        (KJS::Identifier::checkSameIdentifierTable):
        * kjs/identifier.h:
        (KJS::Identifier::add):
        (KJS::UString::checkSameIdentifierTable):
        Added assertions to verify that an identifier is not being added to a different JSGlobalData.

        * API/JSObjectRef.cpp:
        (OpaqueJSPropertyNameArray::OpaqueJSPropertyNameArray): Changed OpaqueJSPropertyNameArray to
        hold JSStringRefs. This is necessary to avoid having to construct (and leak) a new instance
        in JSPropertyNameArrayGetNameAtIndex(), now that making a JSStringRef is not just a typecast.

        * API/OpaqueJSString.cpp: Added.
        (OpaqueJSString::create):
        (OpaqueJSString::ustring):
        (OpaqueJSString::identifier):
        * API/OpaqueJSString.h: Added.
        (OpaqueJSString::create):
        (OpaqueJSString::characters):
        (OpaqueJSString::length):
        (OpaqueJSString::OpaqueJSString):
        (OpaqueJSString::~OpaqueJSString):

        * API/JSBase.cpp:
        (JSEvaluateScript):
        (JSCheckScriptSyntax):
        * API/JSCallbackObjectFunctions.h:
        (KJS::::getOwnPropertySlot):
        (KJS::::put):
        (KJS::::deleteProperty):
        (KJS::::staticValueGetter):
        (KJS::::callbackGetter):
        * API/JSStringRef.cpp:
        (JSStringCreateWithCharacters):
        (JSStringCreateWithUTF8CString):
        (JSStringRetain):
        (JSStringRelease):
        (JSStringGetLength):
        (JSStringGetCharactersPtr):
        (JSStringGetMaximumUTF8CStringSize):
        (JSStringGetUTF8CString):
        (JSStringIsEqual):
        * API/JSStringRefCF.cpp:
        (JSStringCreateWithCFString):
        (JSStringCopyCFString):
        * API/JSValueRef.cpp:
        (JSValueMakeString):
        (JSValueToStringCopy):
        Updated to use OpaqueJSString.

        * GNUmakefile.am:
        * JavaScriptCore.exp:
        * JavaScriptCore.pri:
        * JavaScriptCore.vcproj/JavaScriptCore/JavaScriptCore.vcproj:
        * JavaScriptCore.xcodeproj/project.pbxproj:
        * JavaScriptCoreSources.bkl:
        Added OpaqueJSString.

2008-08-14  Kevin McCullough  <kmccullough@apple.com>

        Reviewed by Tim.

        <rdar://problem/6115819> Notify of profile in console
        - Profiles now have a unique ID so that they can be linked to the
        console message that announces that a profile completed.

        * profiler/HeavyProfile.cpp: 
        (KJS::HeavyProfile::HeavyProfile):
        * profiler/Profile.cpp:
        (KJS::Profile::create):
        (KJS::Profile::Profile):
        * profiler/Profile.h:
        (KJS::Profile::uid):
        * profiler/ProfileGenerator.cpp:
        (KJS::ProfileGenerator::create):
        (KJS::ProfileGenerator::ProfileGenerator):
        * profiler/ProfileGenerator.h:
        * profiler/Profiler.cpp:
        (KJS::Profiler::startProfiling):
        * profiler/TreeProfile.cpp:
        (KJS::TreeProfile::create):
        (KJS::TreeProfile::TreeProfile):
        * profiler/TreeProfile.h:

2008-08-13  Geoffrey Garen  <ggaren@apple.com>

        Reviewed by Oliver Hunt.
        
        Nixed a PIC branch from JSObject::getOwnPropertySlot, by forcing
        fillGetterProperty, which references a global function pointer,
        out-of-line.
        
        .2% SunSpider speedup, 4.3% access-nbody speedup, 8.7% speedup on a
        custom property access benchmark for objects with one property.

        * kjs/JSObject.cpp:
        (KJS::JSObject::fillGetterPropertySlot):

2008-08-13  Alp Toker  <alp@nuanti.com>

        Reviewed by Eric Seidel.

        https://bugs.webkit.org/show_bug.cgi?id=20349
        WTF::initializeThreading() fails if threading is already initialized

        Fix threading initialization logic to support cases where
        g_thread_init() has already been called elsewhere.

        Resolves database-related crashers reported in several applications.

        * wtf/ThreadingGtk.cpp:
        (WTF::initializeThreading):

2008-08-13  Brad Hughes <bhughes@trolltech.com>

        Reviewed by Simon.

        Fix compiling of QtWebKit in release mode with the Intel C++ Compiler for Linux

        The latest upgrade of the intel compiler allows us to compile all of
        Qt with optimizations enabled (yay!).

        * JavaScriptCore.pro:

2008-08-12  Oliver Hunt  <oliver@apple.com>

        Reviewed by Geoff Garen.

        Add peephole optimisation to 'op_not... jfalse...' (eg. if(!...) )

        This is a very slight win in sunspider, and a fairly substantial win
        in hot code that does if(!...), etc.

        * VM/CodeGenerator.cpp:
        (KJS::CodeGenerator::retrieveLastUnaryOp):
        (KJS::CodeGenerator::rewindBinaryOp):
        (KJS::CodeGenerator::rewindUnaryOp):
        (KJS::CodeGenerator::emitJumpIfFalse):
        * VM/CodeGenerator.h:

2008-08-12  Dan Bernstein  <mitz@apple.com>

        - JavaScriptCore part of <rdar://problem/6121636>
          Make fast*alloc() abort() on failure and add "try" variants that
          return NULL on failure.

        Reviewed by Darin Adler.

        * JavaScriptCore.exp: Exported tryFastCalloc().
        * VM/RegisterFile.h:
        (KJS::RegisterFile::RegisterFile): Removed an ASSERT().
        * kjs/JSArray.cpp:
        (KJS::JSArray::putSlowCase): Changed to use tryFastRealloc().
        (KJS::JSArray::increaseVectorLength): Ditto.
        * kjs/ustring.cpp:
        (KJS::allocChars): Changed to use tryFastMalloc().
        (KJS::reallocChars): Changed to use tryFastRealloc().
        * wtf/FastMalloc.cpp:
        (WTF::fastZeroedMalloc): Removed null checking of fastMalloc()'s result
        and removed extra call to InvokeNewHook().
        (WTF::tryFastZeroedMalloc): Added. Uses tryFastMalloc().
        (WTF::tryFastMalloc): Renamed fastMalloc() to this.
        (WTF::fastMalloc): Added. This version abort()s if allocation fails.
        (WTF::tryFastCalloc): Renamed fastCalloc() to this.
        (WTF::fastCalloc): Added. This version abort()s if allocation fails.
        (WTF::tryFastRealloc): Renamed fastRealloc() to this.
        (WTF::fastRealloc): Added. This version abort()s if allocation fails.
        (WTF::do_malloc): Made this a function template. When the abortOnFailure
        template parameter is set, the function abort()s on failure to allocate.
        Otherwise, it sets errno to ENOMEM and returns zero.
        (WTF::TCMallocStats::fastMalloc): Defined to abort() on failure.
        (WTF::TCMallocStats::tryFastMalloc): Added. Does not abort() on
        failure.
        (WTF::TCMallocStats::fastCalloc): Defined to abort() on failure.
        (WTF::TCMallocStats::tryFastCalloc): Added. Does not abort() on
        failure.
        (WTF::TCMallocStats::fastRealloc): Defined to abort() on failure.
        (WTF::TCMallocStats::tryFastRealloc): Added. Does not abort() on
        failure.
        * wtf/FastMalloc.h: Declared the "try" variants.

2008-08-11  Adam Roben  <aroben@apple.com>

        Move WTF::notFound into its own header so that it can be used
        independently of Vector

        Rubberstamped by Darin Adler.

        * JavaScriptCore.vcproj/WTF/WTF.vcproj:
        * JavaScriptCore.xcodeproj/project.pbxproj:
        Added NotFound.h to the project.
        * wtf/NotFound.h: Added. Moved the notFound constant here...
        * wtf/Vector.h: ...from here.

2008-08-11  Alexey Proskuryakov  <ap@webkit.org>

        Reviewed by Mark Rowe.

        <rdar://problem/6130393> REGRESSION: PhotoBooth hangs after launching under TOT Webkit

        * API/JSContextRef.cpp: (JSGlobalContextRelease): Corrected a comment.

        * kjs/collector.cpp: (KJS::Heap::~Heap): Ensure that JSGlobalData is not deleted while
        sweeping the heap.

== Rolled over to ChangeLog-2008-08-10 ==