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Unified Diff: src/crankshaft/hydrogen.cc

Issue 1493983004: [crankshaft] Loads and stores to typed arrays have to reference the backing store holder (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: updates Created 5 years ago
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Index: src/crankshaft/hydrogen.cc
diff --git a/src/crankshaft/hydrogen.cc b/src/crankshaft/hydrogen.cc
index 81c6ed4281b91588f6592b365ac7652e77ce3d78..12524fccd0c067994a71c390a11b1c7e7911dc06 100644
--- a/src/crankshaft/hydrogen.cc
+++ b/src/crankshaft/hydrogen.cc
@@ -1372,7 +1372,8 @@ HValue* HGraphBuilder::BuildCheckForCapacityGrow(
HValue* checked_elements = environment()->Top();
// Write zero to ensure that the new element is initialized with some smi.
- Add<HStoreKeyed>(checked_elements, key, graph()->GetConstant0(), kind);
+ Add<HStoreKeyed>(checked_elements, key, graph()->GetConstant0(), nullptr,
+ kind);
}
length_checker.Else();
@@ -1676,7 +1677,7 @@ HValue* HGraphBuilder::BuildUncheckedDictionaryElementLoad(
LanguageMode language_mode) {
HValue* capacity =
Add<HLoadKeyed>(elements, Add<HConstant>(NameDictionary::kCapacityIndex),
- nullptr, FAST_ELEMENTS);
+ nullptr, nullptr, FAST_ELEMENTS);
HValue* mask = AddUncasted<HSub>(capacity, graph()->GetConstant1());
mask->ChangeRepresentation(Representation::Integer32());
@@ -1707,7 +1708,7 @@ HValue* HGraphBuilder::BuildUncheckedDictionaryElementLoad(
key_index->ClearFlag(HValue::kCanOverflow);
HValue* candidate_key =
- Add<HLoadKeyed>(elements, key_index, nullptr, FAST_ELEMENTS);
+ Add<HLoadKeyed>(elements, key_index, nullptr, nullptr, FAST_ELEMENTS);
IfBuilder if_undefined(this);
if_undefined.If<HCompareObjectEqAndBranch>(candidate_key,
graph()->GetConstantUndefined());
@@ -1750,7 +1751,7 @@ HValue* HGraphBuilder::BuildUncheckedDictionaryElementLoad(
if_update_with_internalized.Then();
// Replace a key that is a non-internalized string by the equivalent
// internalized string for faster further lookups.
- Add<HStoreKeyed>(elements, key_index, key, FAST_ELEMENTS);
+ Add<HStoreKeyed>(elements, key_index, key, nullptr, FAST_ELEMENTS);
if_update_with_internalized.Else();
if_update_with_internalized.JoinContinuation(&found_key_match_continuation);
@@ -1763,8 +1764,8 @@ HValue* HGraphBuilder::BuildUncheckedDictionaryElementLoad(
HValue* details_index =
AddUncasted<HAdd>(base_index, Add<HConstant>(start_offset + 2));
details_index->ClearFlag(HValue::kCanOverflow);
- HValue* details =
- Add<HLoadKeyed>(elements, details_index, nullptr, FAST_ELEMENTS);
+ HValue* details = Add<HLoadKeyed>(elements, details_index, nullptr, nullptr,
+ FAST_ELEMENTS);
int details_mask = PropertyDetails::TypeField::kMask;
details = AddUncasted<HBitwise>(Token::BIT_AND, details,
Add<HConstant>(details_mask));
@@ -1775,7 +1776,8 @@ HValue* HGraphBuilder::BuildUncheckedDictionaryElementLoad(
HValue* result_index =
AddUncasted<HAdd>(base_index, Add<HConstant>(start_offset + 1));
result_index->ClearFlag(HValue::kCanOverflow);
- Push(Add<HLoadKeyed>(elements, result_index, nullptr, FAST_ELEMENTS));
+ Push(Add<HLoadKeyed>(elements, result_index, nullptr, nullptr,
+ FAST_ELEMENTS));
details_compare.Else();
Add<HPushArguments>(receiver, key);
Push(Add<HCallRuntime>(
@@ -1945,7 +1947,7 @@ HValue* HGraphBuilder::BuildNumberToString(HValue* object, Type* type) {
// Load the key.
HValue* key_index = AddUncasted<HShl>(hash, graph()->GetConstant1());
HValue* key = Add<HLoadKeyed>(number_string_cache, key_index, nullptr,
- FAST_ELEMENTS, ALLOW_RETURN_HOLE);
+ nullptr, FAST_ELEMENTS, ALLOW_RETURN_HOLE);
// Check if object == key.
IfBuilder if_objectiskey(this);
@@ -1980,8 +1982,9 @@ HValue* HGraphBuilder::BuildNumberToString(HValue* object, Type* type) {
// Load the key.
HValue* key_index = AddUncasted<HShl>(hash, graph()->GetConstant1());
- HValue* key = Add<HLoadKeyed>(number_string_cache, key_index, nullptr,
- FAST_ELEMENTS, ALLOW_RETURN_HOLE);
+ HValue* key =
+ Add<HLoadKeyed>(number_string_cache, key_index, nullptr, nullptr,
+ FAST_ELEMENTS, ALLOW_RETURN_HOLE);
// Check if the key is a heap number and compare it with the object.
IfBuilder if_keyisnotsmi(this);
@@ -2033,7 +2036,7 @@ HValue* HGraphBuilder::BuildNumberToString(HValue* object, Type* type) {
// Load the value in case of cache hit.
HValue* key_index = Pop();
HValue* value_index = AddUncasted<HAdd>(key_index, graph()->GetConstant1());
- Push(Add<HLoadKeyed>(number_string_cache, value_index, nullptr,
+ Push(Add<HLoadKeyed>(number_string_cache, value_index, nullptr, nullptr,
FAST_ELEMENTS, ALLOW_RETURN_HOLE));
}
if_found.Else();
@@ -2117,7 +2120,7 @@ HValue* HGraphBuilder::BuildToObject(HValue* receiver) {
// Determine the initial map for the global constructor.
HValue* constructor = Add<HLoadKeyed>(native_context, constructor_index,
- nullptr, FAST_ELEMENTS);
+ nullptr, nullptr, FAST_ELEMENTS);
HValue* constructor_initial_map = Add<HLoadNamedField>(
constructor, nullptr, HObjectAccess::ForPrototypeOrInitialMap());
// Allocate and initialize a JSValue wrapper.
@@ -2588,7 +2591,8 @@ HInstruction* HGraphBuilder::BuildUncheckedMonomorphicElementAccess(
key, graph()->GetConstant0(), Token::GTE);
negative_checker.Then();
HInstruction* result = AddElementAccess(
- backing_store, key, val, bounds_check, elements_kind, access_type);
+ backing_store, key, val, bounds_check, checked_object->ActualValue(),
+ elements_kind, access_type);
negative_checker.ElseDeopt(Deoptimizer::kNegativeKeyEncountered);
negative_checker.End();
length_checker.End();
@@ -2596,9 +2600,9 @@ HInstruction* HGraphBuilder::BuildUncheckedMonomorphicElementAccess(
} else {
DCHECK(store_mode == STANDARD_STORE);
checked_key = Add<HBoundsCheck>(key, length);
- return AddElementAccess(
- backing_store, checked_key, val,
- checked_object, elements_kind, access_type);
+ return AddElementAccess(backing_store, checked_key, val, checked_object,
+ checked_object->ActualValue(), elements_kind,
+ access_type);
}
}
DCHECK(fast_smi_only_elements ||
@@ -2637,7 +2641,7 @@ HInstruction* HGraphBuilder::BuildUncheckedMonomorphicElementAccess(
}
}
}
- return AddElementAccess(elements, checked_key, val, checked_object,
+ return AddElementAccess(elements, checked_key, val, checked_object, nullptr,
elements_kind, access_type, load_mode);
}
@@ -2800,26 +2804,23 @@ void HGraphBuilder::BuildJSArrayHeader(HValue* array,
HInstruction* HGraphBuilder::AddElementAccess(
- HValue* elements,
- HValue* checked_key,
- HValue* val,
- HValue* dependency,
- ElementsKind elements_kind,
- PropertyAccessType access_type,
- LoadKeyedHoleMode load_mode) {
+ HValue* elements, HValue* checked_key, HValue* val, HValue* dependency,
+ HValue* backing_store_owner, ElementsKind elements_kind,
+ PropertyAccessType access_type, LoadKeyedHoleMode load_mode) {
if (access_type == STORE) {
DCHECK(val != NULL);
if (elements_kind == UINT8_CLAMPED_ELEMENTS) {
val = Add<HClampToUint8>(val);
}
- return Add<HStoreKeyed>(elements, checked_key, val, elements_kind,
- STORE_TO_INITIALIZED_ENTRY);
+ return Add<HStoreKeyed>(elements, checked_key, val, backing_store_owner,
+ elements_kind, STORE_TO_INITIALIZED_ENTRY);
}
DCHECK(access_type == LOAD);
DCHECK(val == NULL);
- HLoadKeyed* load = Add<HLoadKeyed>(
- elements, checked_key, dependency, elements_kind, load_mode);
+ HLoadKeyed* load =
+ Add<HLoadKeyed>(elements, checked_key, dependency, backing_store_owner,
+ elements_kind, load_mode);
if (elements_kind == UINT32_ELEMENTS) {
graph()->RecordUint32Instruction(load);
}
@@ -2920,7 +2921,7 @@ void HGraphBuilder::BuildFillElementsWithValue(HValue* elements,
if (initial_capacity >= 0) {
for (int i = 0; i < initial_capacity; i++) {
HInstruction* key = Add<HConstant>(i);
- Add<HStoreKeyed>(elements, key, value, elements_kind);
+ Add<HStoreKeyed>(elements, key, value, nullptr, elements_kind);
}
} else {
// Carefully loop backwards so that the "from" remains live through the loop
@@ -2934,7 +2935,7 @@ void HGraphBuilder::BuildFillElementsWithValue(HValue* elements,
HValue* adjusted_key = AddUncasted<HSub>(key, graph()->GetConstant1());
adjusted_key->ClearFlag(HValue::kCanOverflow);
- Add<HStoreKeyed>(elements, adjusted_key, value, elements_kind);
+ Add<HStoreKeyed>(elements, adjusted_key, value, nullptr, elements_kind);
builder.EndBody();
}
@@ -2977,9 +2978,10 @@ void HGraphBuilder::BuildCopyProperties(HValue* from_properties,
key = AddUncasted<HSub>(key, graph()->GetConstant1());
key->ClearFlag(HValue::kCanOverflow);
- HValue* element = Add<HLoadKeyed>(from_properties, key, nullptr, kind);
+ HValue* element =
+ Add<HLoadKeyed>(from_properties, key, nullptr, nullptr, kind);
- Add<HStoreKeyed>(to_properties, key, element, kind);
+ Add<HStoreKeyed>(to_properties, key, element, nullptr, kind);
builder.EndBody();
}
@@ -3016,9 +3018,10 @@ void HGraphBuilder::BuildCopyElements(HValue* from_elements,
// Unroll the loop for small elements kinds.
for (int i = 0; i < constant_capacity; i++) {
HValue* key_constant = Add<HConstant>(i);
- HInstruction* value = Add<HLoadKeyed>(from_elements, key_constant,
- nullptr, from_elements_kind);
- Add<HStoreKeyed>(to_elements, key_constant, value, to_elements_kind);
+ HInstruction* value = Add<HLoadKeyed>(
+ from_elements, key_constant, nullptr, nullptr, from_elements_kind);
+ Add<HStoreKeyed>(to_elements, key_constant, value, nullptr,
+ to_elements_kind);
}
} else {
if (!pre_fill_with_holes &&
@@ -3035,7 +3038,7 @@ void HGraphBuilder::BuildCopyElements(HValue* from_elements,
key = AddUncasted<HSub>(key, graph()->GetConstant1());
key->ClearFlag(HValue::kCanOverflow);
- HValue* element = Add<HLoadKeyed>(from_elements, key, nullptr,
+ HValue* element = Add<HLoadKeyed>(from_elements, key, nullptr, nullptr,
from_elements_kind, ALLOW_RETURN_HOLE);
ElementsKind kind = (IsHoleyElementsKind(from_elements_kind) &&
@@ -3050,13 +3053,15 @@ void HGraphBuilder::BuildCopyElements(HValue* from_elements,
HConstant* hole_constant = IsFastDoubleElementsKind(to_elements_kind)
? Add<HConstant>(HConstant::kHoleNaN)
: graph()->GetConstantHole();
- Add<HStoreKeyed>(to_elements, key, hole_constant, kind);
+ Add<HStoreKeyed>(to_elements, key, hole_constant, nullptr, kind);
if_hole.Else();
- HStoreKeyed* store = Add<HStoreKeyed>(to_elements, key, element, kind);
+ HStoreKeyed* store =
+ Add<HStoreKeyed>(to_elements, key, element, nullptr, kind);
store->SetFlag(HValue::kAllowUndefinedAsNaN);
if_hole.End();
} else {
- HStoreKeyed* store = Add<HStoreKeyed>(to_elements, key, element, kind);
+ HStoreKeyed* store =
+ Add<HStoreKeyed>(to_elements, key, element, nullptr, kind);
store->SetFlag(HValue::kAllowUndefinedAsNaN);
}
@@ -3336,7 +3341,8 @@ HInstruction* HGraphBuilder::BuildGetArrayFunction() {
HInstruction* native_context = BuildGetNativeContext();
HInstruction* index =
Add<HConstant>(static_cast<int32_t>(Context::ARRAY_FUNCTION_INDEX));
- return Add<HLoadKeyed>(native_context, index, nullptr, FAST_ELEMENTS);
+ return Add<HLoadKeyed>(native_context, index, nullptr, nullptr,
+ FAST_ELEMENTS);
}
@@ -3424,12 +3430,12 @@ HValue* HGraphBuilder::JSArrayBuilder::EmitMapCode() {
HInstruction* index = builder()->Add<HConstant>(
static_cast<int32_t>(Context::JS_ARRAY_MAPS_INDEX));
- HInstruction* map_array =
- builder()->Add<HLoadKeyed>(native_context, index, nullptr, FAST_ELEMENTS);
+ HInstruction* map_array = builder()->Add<HLoadKeyed>(
+ native_context, index, nullptr, nullptr, FAST_ELEMENTS);
HInstruction* kind_index = builder()->Add<HConstant>(kind_);
- return builder()->Add<HLoadKeyed>(map_array, kind_index, nullptr,
+ return builder()->Add<HLoadKeyed>(map_array, kind_index, nullptr, nullptr,
FAST_ELEMENTS);
}
@@ -5379,7 +5385,7 @@ void HOptimizedGraphBuilder::BuildForInBody(ForInStatement* stmt,
HValue* key =
Add<HLoadKeyed>(environment()->ExpressionStackAt(2), // Enum cache.
- index, index, FAST_ELEMENTS);
+ index, index, nullptr, FAST_ELEMENTS);
if (fast) {
// Check if the expected map still matches that of the enumerable.
@@ -6087,7 +6093,7 @@ void HOptimizedGraphBuilder::VisitArrayLiteral(ArrayLiteral* expr) {
case FAST_HOLEY_ELEMENTS:
case FAST_DOUBLE_ELEMENTS:
case FAST_HOLEY_DOUBLE_ELEMENTS: {
- HStoreKeyed* instr = Add<HStoreKeyed>(elements, key, value,
+ HStoreKeyed* instr = Add<HStoreKeyed>(elements, key, value, nullptr,
boilerplate_elements_kind);
instr->SetUninitialized(uninitialized);
break;
@@ -8850,16 +8856,16 @@ bool HOptimizedGraphBuilder::TryInlineBuiltinMethodCall(
elements_kind, length);
}
reduced_length = AddUncasted<HSub>(length, graph()->GetConstant1());
- result = AddElementAccess(elements, reduced_length, NULL,
- bounds_check, elements_kind, LOAD);
+ result = AddElementAccess(elements, reduced_length, nullptr,
+ bounds_check, nullptr, elements_kind, LOAD);
HValue* hole = IsFastSmiOrObjectElementsKind(elements_kind)
? graph()->GetConstantHole()
: Add<HConstant>(HConstant::kHoleNaN);
if (IsFastSmiOrObjectElementsKind(elements_kind)) {
elements_kind = FAST_HOLEY_ELEMENTS;
}
- AddElementAccess(
- elements, reduced_length, hole, bounds_check, elements_kind, STORE);
+ AddElementAccess(elements, reduced_length, hole, bounds_check, nullptr,
+ elements_kind, STORE);
Add<HStoreNamedField>(
checked_object, HObjectAccess::ForArrayLength(elements_kind),
reduced_length, STORE_TO_INITIALIZED_ENTRY);
@@ -8984,8 +8990,8 @@ bool HOptimizedGraphBuilder::TryInlineBuiltinMethodCall(
{
// Remember the result.
if (!ast_context()->IsEffect()) {
- Push(AddElementAccess(elements, graph()->GetConstant0(), NULL,
- lengthiszero, kind, LOAD));
+ Push(AddElementAccess(elements, graph()->GetConstant0(), nullptr,
+ lengthiszero, nullptr, kind, LOAD));
}
// Compute the new length.
@@ -9002,10 +9008,11 @@ bool HOptimizedGraphBuilder::TryInlineBuiltinMethodCall(
key->ClearFlag(HValue::kCanOverflow);
ElementsKind copy_kind =
kind == FAST_HOLEY_SMI_ELEMENTS ? FAST_HOLEY_ELEMENTS : kind;
- HValue* element = AddUncasted<HLoadKeyed>(
- elements, key, lengthiszero, copy_kind, ALLOW_RETURN_HOLE);
- HStoreKeyed* store =
- Add<HStoreKeyed>(elements, new_key, element, copy_kind);
+ HValue* element =
+ AddUncasted<HLoadKeyed>(elements, key, lengthiszero, nullptr,
+ copy_kind, ALLOW_RETURN_HOLE);
+ HStoreKeyed* store = Add<HStoreKeyed>(elements, new_key, element,
+ nullptr, copy_kind);
store->SetFlag(HValue::kAllowUndefinedAsNaN);
}
loop.EndBody();
@@ -9015,8 +9022,8 @@ bool HOptimizedGraphBuilder::TryInlineBuiltinMethodCall(
? graph()->GetConstantHole()
: Add<HConstant>(HConstant::kHoleNaN);
if (IsFastSmiOrObjectElementsKind(kind)) kind = FAST_HOLEY_ELEMENTS;
- Add<HStoreKeyed>(
- elements, new_length, hole, kind, INITIALIZING_STORE);
+ Add<HStoreKeyed>(elements, new_length, hole, nullptr, kind,
+ INITIALIZING_STORE);
// Remember new length.
Add<HStoreNamedField>(
@@ -9478,8 +9485,8 @@ HValue* HOptimizedGraphBuilder::BuildArrayIndexOf(HValue* receiver,
LoopBuilder loop(this, context(), direction);
{
HValue* index = loop.BeginBody(initial, terminating, token);
- HValue* element = AddUncasted<HLoadKeyed>(elements, index, nullptr, kind,
- ALLOW_RETURN_HOLE);
+ HValue* element = AddUncasted<HLoadKeyed>(
+ elements, index, nullptr, nullptr, kind, ALLOW_RETURN_HOLE);
IfBuilder if_issame(this);
if_issame.If<HCompareNumericAndBranch>(element, search_element,
Token::EQ_STRICT);
@@ -9500,8 +9507,8 @@ HValue* HOptimizedGraphBuilder::BuildArrayIndexOf(HValue* receiver,
LoopBuilder loop(this, context(), direction);
{
HValue* index = loop.BeginBody(initial, terminating, token);
- HValue* element = AddUncasted<HLoadKeyed>(elements, index, nullptr,
- kind, ALLOW_RETURN_HOLE);
+ HValue* element = AddUncasted<HLoadKeyed>(
+ elements, index, nullptr, nullptr, kind, ALLOW_RETURN_HOLE);
IfBuilder if_issame(this);
if_issame.If<HIsStringAndBranch>(element);
if_issame.AndIf<HStringCompareAndBranch>(
@@ -9530,8 +9537,8 @@ HValue* HOptimizedGraphBuilder::BuildArrayIndexOf(HValue* receiver,
LoopBuilder loop(this, context(), direction);
{
HValue* index = loop.BeginBody(initial, terminating, token);
- HValue* element = AddUncasted<HLoadKeyed>(elements, index, nullptr,
- kind, ALLOW_RETURN_HOLE);
+ HValue* element = AddUncasted<HLoadKeyed>(
+ elements, index, nullptr, nullptr, kind, ALLOW_RETURN_HOLE);
IfBuilder if_element_isnumber(this);
if_element_isnumber.If<HIsSmiAndBranch>(element);
@@ -9562,8 +9569,8 @@ HValue* HOptimizedGraphBuilder::BuildArrayIndexOf(HValue* receiver,
LoopBuilder loop(this, context(), direction);
{
HValue* index = loop.BeginBody(initial, terminating, token);
- HValue* element = AddUncasted<HLoadKeyed>(elements, index, nullptr,
- kind, ALLOW_RETURN_HOLE);
+ HValue* element = AddUncasted<HLoadKeyed>(
+ elements, index, nullptr, nullptr, kind, ALLOW_RETURN_HOLE);
IfBuilder if_issame(this);
if_issame.If<HCompareObjectEqAndBranch>(
element, search_element);
@@ -10219,7 +10226,7 @@ HValue* HOptimizedGraphBuilder::BuildAllocateFixedTypedArray(
HValue* key = builder.BeginBody(
Add<HConstant>(static_cast<int32_t>(0)),
length, Token::LT);
- Add<HStoreKeyed>(backing_store, key, filler, fixed_elements_kind);
+ Add<HStoreKeyed>(backing_store, key, filler, elements, fixed_elements_kind);
builder.EndBody();
}
@@ -11962,10 +11969,11 @@ void HOptimizedGraphBuilder::BuildEmitFixedDoubleArray(
int elements_length = elements->length();
for (int i = 0; i < elements_length; i++) {
HValue* key_constant = Add<HConstant>(i);
- HInstruction* value_instruction = Add<HLoadKeyed>(
- boilerplate_elements, key_constant, nullptr, kind, ALLOW_RETURN_HOLE);
+ HInstruction* value_instruction =
+ Add<HLoadKeyed>(boilerplate_elements, key_constant, nullptr, nullptr,
+ kind, ALLOW_RETURN_HOLE);
HInstruction* store = Add<HStoreKeyed>(object_elements, key_constant,
- value_instruction, kind);
+ value_instruction, nullptr, kind);
store->SetFlag(HValue::kAllowUndefinedAsNaN);
}
}
@@ -11988,15 +11996,15 @@ void HOptimizedGraphBuilder::BuildEmitFixedArray(
HInstruction* result =
BuildFastLiteral(value_object, site_context);
site_context->ExitScope(current_site, value_object);
- Add<HStoreKeyed>(object_elements, key_constant, result, kind);
+ Add<HStoreKeyed>(object_elements, key_constant, result, nullptr, kind);
} else {
ElementsKind copy_kind =
kind == FAST_HOLEY_SMI_ELEMENTS ? FAST_HOLEY_ELEMENTS : kind;
HInstruction* value_instruction =
- Add<HLoadKeyed>(boilerplate_elements, key_constant, nullptr,
+ Add<HLoadKeyed>(boilerplate_elements, key_constant, nullptr, nullptr,
copy_kind, ALLOW_RETURN_HOLE);
Add<HStoreKeyed>(object_elements, key_constant, value_instruction,
- copy_kind);
+ nullptr, copy_kind);
}
}
}
@@ -12769,7 +12777,7 @@ void HOptimizedGraphBuilder::GenerateFixedArrayGet(CallRuntime* call) {
HValue* index = Pop();
HValue* object = Pop();
HInstruction* result = New<HLoadKeyed>(
- object, index, nullptr, FAST_HOLEY_ELEMENTS, ALLOW_RETURN_HOLE);
+ object, index, nullptr, nullptr, FAST_HOLEY_ELEMENTS, ALLOW_RETURN_HOLE);
return ast_context()->ReturnInstruction(result, call->id());
}
@@ -12783,7 +12791,7 @@ void HOptimizedGraphBuilder::GenerateFixedArraySet(CallRuntime* call) {
HValue* index = Pop();
HValue* object = Pop();
NoObservableSideEffectsScope no_effects(this);
- Add<HStoreKeyed>(object, index, value, FAST_HOLEY_ELEMENTS);
+ Add<HStoreKeyed>(object, index, value, nullptr, FAST_HOLEY_ELEMENTS);
return ast_context()->ReturnValue(graph()->GetConstantUndefined());
}
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