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:
git-svn-id: http://svn.webkit.org/repository/webkit/trunk@36325 268f45cc-cd09-0410-ab3c-d52691b4dbfc
9 files changed
