JavaScriptCore:

JavaScriptCore:

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):

WebCore:

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

        * WebCore.xcodeproj/project.pbxproj:
        * WebCore.vcproj/WebCore.vcproj:
        * bindings/js/JSCSSStyleDeclarationCustom.cpp:
        (WebCore::JSCSSStyleDeclaration::nameGetter):
        * bindings/js/JSHTMLAllCollection.cpp: Added.
        (WebCore::):
        * bindings/js/JSHTMLAllCollection.h:
        (WebCore::JSHTMLAllCollection::createStructureID):
        (WebCore::JSHTMLAllCollection::toBoolean):

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@36764 268f45cc-cd09-0410-ab3c-d52691b4dbfc