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| author | Simon Hausmann <simon.hausmann@qt.io> | 2018-01-16 16:24:34 +0100 |
|---|---|---|
| committer | Simon Hausmann <simon.hausmann@qt.io> | 2018-01-16 15:32:32 +0000 |
| commit | 4e0277664071c31e2189e2351e3e9d12c4e7e08c (patch) | |
| tree | b3057ccd60c4cc91137233f5e42ae283c1f2e661 /src/qml/jsruntime/qv4engine.cpp | |
| parent | 228790f27a4cb8f4f307693fb1c9f13a96eddfaa (diff) | |
Speed up V4 QML context creation
After commit cae7975a036352ca4bbcf1381a445362f8e01367 the vtable became
part of the internal class, which meant that for allocating the
V4::QmlContext and the QV4::QmlContextWrapper we had one additional IC
transition upon allocation. We can avoid that by providing a default IC
for both types.
Task-number: QTBUG-65708
Change-Id: I22815a24a8389b59103309806f6ac4ca382405f0
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
Diffstat (limited to 'src/qml/jsruntime/qv4engine.cpp')
| -rw-r--r-- | src/qml/jsruntime/qv4engine.cpp | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/qml/jsruntime/qv4engine.cpp b/src/qml/jsruntime/qv4engine.cpp index a584c2731f..0d3f29d089 100644 --- a/src/qml/jsruntime/qv4engine.cpp +++ b/src/qml/jsruntime/qv4engine.cpp @@ -214,6 +214,7 @@ ExecutionEngine::ExecutionEngine(EvalISelFactory *factory) internalClasses[Class_SimpleArrayData] = internalClasses[EngineBase::Class_Empty]->changeVTable(QV4::SimpleArrayData::staticVTable()); internalClasses[Class_SparseArrayData] = internalClasses[EngineBase::Class_Empty]->changeVTable(QV4::SparseArrayData::staticVTable()); internalClasses[Class_ExecutionContext] = internalClasses[EngineBase::Class_Empty]->changeVTable(QV4::ExecutionContext::staticVTable()); + internalClasses[EngineBase::Class_QmlContext] = internalClasses[EngineBase::Class_ExecutionContext]->changeVTable(QV4::QmlContext::staticVTable()); internalClasses[Class_CallContext] = internalClasses[EngineBase::Class_Empty]->changeVTable(QV4::CallContext::staticVTable()); jsStrings[String_Empty] = newIdentifier(QString()); @@ -256,6 +257,7 @@ ExecutionEngine::ExecutionEngine(EvalISelFactory *factory) InternalClass *ic = internalClasses[Class_Empty]->changeVTable(QV4::Object::staticVTable()); jsObjects[ObjectProto] = memoryManager->allocObject<ObjectPrototype>(ic); internalClasses[Class_Object] = ic->changePrototype(objectPrototype()->d()); + internalClasses[EngineBase::Class_QmlContextWrapper] = internalClasses[Class_Object]->changeVTable(QV4::QmlContextWrapper::staticVTable()); ic = newInternalClass(ArrayPrototype::staticVTable(), objectPrototype()); Q_ASSERT(ic->prototype); |