@@ -4505,34 +4505,51 @@ void LCodeGen::EmitDeepCopy(Handle<JSObject> object,
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}
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- // Copy elements backing store header.
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- ASSERT (!has_elements || elements->IsFixedArray ());
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if (has_elements) {
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+ // Copy elements backing store header.
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__ LoadHeapObject (source, elements);
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for (int i = 0 ; i < FixedArray::kHeaderSize ; i += kPointerSize ) {
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__ lw (a2, FieldMemOperand (source, i));
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__ sw (a2, FieldMemOperand (result, elements_offset + i));
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}
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- }
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- // Copy elements backing store content.
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- ASSERT (!has_elements || elements->IsFixedArray ());
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- int elements_length = has_elements ? elements->length () : 0 ;
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- for (int i = 0 ; i < elements_length; i++) {
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- int total_offset = elements_offset + FixedArray::OffsetOfElementAt (i);
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- Handle <Object> value = JSObject::GetElement (object, i);
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- if (value->IsJSObject ()) {
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- Handle <JSObject> value_object = Handle <JSObject>::cast (value);
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- __ Addu (a2, result, Operand (*offset));
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- __ sw (a2, FieldMemOperand (result, total_offset));
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- __ LoadHeapObject (source, value_object);
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- EmitDeepCopy (value_object, result, source, offset);
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- } else if (value->IsHeapObject ()) {
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- __ LoadHeapObject (a2, Handle <HeapObject>::cast (value));
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- __ sw (a2, FieldMemOperand (result, total_offset));
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+ // Copy elements backing store content.
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+ int elements_length = has_elements ? elements->length () : 0 ;
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+ if (elements->IsFixedDoubleArray ()) {
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+ Handle <FixedDoubleArray> double_array =
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+ Handle <FixedDoubleArray>::cast (elements);
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+ for (int i = 0 ; i < elements_length; i++) {
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+ int64_t value = double_array->get_representation (i);
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+ // We only support little endian mode...
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+ int32_t value_low = value & 0xFFFFFFFF ;
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+ int32_t value_high = value >> 32 ;
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+ int total_offset =
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+ elements_offset + FixedDoubleArray::OffsetOfElementAt (i);
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+ __ li (a2, Operand (value_low));
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+ __ sw (a2, FieldMemOperand (result, total_offset));
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+ __ li (a2, Operand (value_high));
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+ __ sw (a2, FieldMemOperand (result, total_offset + 4 ));
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+ }
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+ } else if (elements->IsFixedArray ()) {
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+ for (int i = 0 ; i < elements_length; i++) {
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+ int total_offset = elements_offset + FixedArray::OffsetOfElementAt (i);
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+ Handle <Object> value = JSObject::GetElement (object, i);
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+ if (value->IsJSObject ()) {
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+ Handle <JSObject> value_object = Handle <JSObject>::cast (value);
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+ __ Addu (a2, result, Operand (*offset));
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+ __ sw (a2, FieldMemOperand (result, total_offset));
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+ __ LoadHeapObject (source, value_object);
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+ EmitDeepCopy (value_object, result, source, offset);
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+ } else if (value->IsHeapObject ()) {
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+ __ LoadHeapObject (a2, Handle <HeapObject>::cast (value));
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+ __ sw (a2, FieldMemOperand (result, total_offset));
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+ } else {
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+ __ li (a2, Operand (value));
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+ __ sw (a2, FieldMemOperand (result, total_offset));
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+ }
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+ }
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} else {
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- __ li (a2, Operand (value));
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- __ sw (a2, FieldMemOperand (result, total_offset));
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+ UNREACHABLE ();
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}
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}
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}
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