Optimize String.replace and RegExp.exec

This speeds up the v8 regexp benchmark by a factor 2.5 :)

Change-Id: Ibd6b18ee28181aa712429cbec4598984e0c69820
Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>

1 files changed, 15 insertions, 0 deletions

diff --git a/src/qml/jsruntime/qv4engine.cpp b/src/qml/jsruntime/qv4engine.cpp
index af87ee2a45..ae444ab938 100644
--- a/src/qml/jsruntime/qv4engine.cpp
+++ b/src/qml/jsruntime/qv4engine.cpp
@@ -135,6 +135,8 @@ ExecutionEngine::ExecutionEngine(QQmlJS::EvalISelFactory *factory)
     id_eval = newIdentifier(QStringLiteral("eval"));
     id_uintMax = newIdentifier(QStringLiteral("4294967295"));
     id_name = newIdentifier(QStringLiteral("name"));
+    id_index = newIdentifier(QStringLiteral("index"));
+    id_input = newIdentifier(QStringLiteral("input"));
 
     ObjectPrototype *objectPrototype = new (memoryManager) ObjectPrototype(emptyClass);
     objectClass = emptyClass->changePrototype(objectPrototype);
@@ -171,6 +173,10 @@ ExecutionEngine::ExecutionEngine(QQmlJS::EvalISelFactory *factory)
 
     RegExpPrototype *regExpPrototype = new (memoryManager) RegExpPrototype(objectClass);
     regExpClass = emptyClass->changePrototype(regExpPrototype);
+    regExpExecArrayClass = arrayClass->addMember(id_index, Attr_Data, &index);
+    Q_ASSERT(index == RegExpObject::Index_ArrayIndex);
+    regExpExecArrayClass = regExpExecArrayClass->addMember(id_input, Attr_Data, &index);
+    Q_ASSERT(index == RegExpObject::Index_ArrayInput);
 
     ErrorPrototype *errorPrototype = new (memoryManager) ErrorPrototype(objectClass);
     errorClass = emptyClass->changePrototype(errorPrototype);
@@ -392,6 +398,13 @@ ArrayObject *ExecutionEngine::newArrayObject(const QStringList &list)
     return object;
 }
 
+ArrayObject *ExecutionEngine::newArrayObject(InternalClass *ic)
+{
+    ArrayObject *object = new (memoryManager) ArrayObject(ic);
+    return object;
+}
+
+
 DateObject *ExecutionEngine::newDateObject(const Value &value)
 {
     DateObject *object = new (memoryManager) DateObject(this, value);
@@ -661,6 +674,8 @@ void ExecutionEngine::markObjects()
     id_eval->mark();
     id_uintMax->mark();
     id_name->mark();
+    id_index->mark();
+    id_input->mark();
 
     objectCtor.mark();
     stringCtor.mark();