[stubs]: Implement ArrayNoArgumentConstructor as a TF stub

Review-Url: https://codereview.chromium.org/1903723003
Cr-Commit-Position: refs/heads/master@{#35963}

src/arm/code-stubs-arm.cc

@@ -55,12 +55,6 @@ static void InitializeInternalArrayConstructorDescriptor(
 }
 
 
-void ArrayNoArgumentConstructorStub::InitializeDescriptor(
-    CodeStubDescriptor* descriptor) {
-  InitializeArrayConstructorDescriptor(isolate(), descriptor, 0);
-}
-
-
 void ArraySingleArgumentConstructorStub::InitializeDescriptor(
     CodeStubDescriptor* descriptor) {
   InitializeArrayConstructorDescriptor(isolate(), descriptor, 1);

src/arm/interface-descriptors-arm.cc

@@ -247,6 +247,16 @@ void AllocateHeapNumberDescriptor::InitializePlatformSpecific(
 SIMD128_TYPES(SIMD128_ALLOC_DESC)
 #undef SIMD128_ALLOC_DESC
 
+void ArrayNoArgumentConstructorDescriptor::InitializePlatformSpecific(
+    CallInterfaceDescriptorData* data) {
+  // register state
+  // r0 -- number of arguments
+  // r1 -- function
+  // r2 -- allocation site with elements kind
+  Register registers[] = {r1, r2, r0};
+  data->InitializePlatformSpecific(arraysize(registers), registers, NULL);
+}
+
 void ArrayConstructorConstantArgCountDescriptor::InitializePlatformSpecific(
     CallInterfaceDescriptorData* data) {
   // register state

src/arm64/code-stubs-arm64.cc

@@ -43,12 +43,6 @@ static void InitializeArrayConstructorDescriptor(
 }
 
 
-void ArrayNoArgumentConstructorStub::InitializeDescriptor(
-    CodeStubDescriptor* descriptor) {
-  InitializeArrayConstructorDescriptor(isolate(), descriptor, 0);
-}
-
-
 void ArraySingleArgumentConstructorStub::InitializeDescriptor(
     CodeStubDescriptor* descriptor) {
   InitializeArrayConstructorDescriptor(isolate(), descriptor, 1);

src/arm64/interface-descriptors-arm64.cc

@@ -272,6 +272,16 @@ void AllocateHeapNumberDescriptor::InitializePlatformSpecific(
 SIMD128_TYPES(SIMD128_ALLOC_DESC)
 #undef SIMD128_ALLOC_DESC
 
+void ArrayNoArgumentConstructorDescriptor::InitializePlatformSpecific(
+    CallInterfaceDescriptorData* data) {
+  // register state
+  // x1: function
+  // x2: allocation site with elements kind
+  // x0: number of arguments to the constructor function
+  Register registers[] = {x1, x2, x0};
+  data->InitializePlatformSpecific(arraysize(registers), registers, NULL);
+}
+
 void ArrayConstructorConstantArgCountDescriptor::InitializePlatformSpecific(
     CallInterfaceDescriptorData* data) {
   // x1: function

src/code-stub-assembler.cc

@@ -238,9 +238,7 @@ Node* CodeStubAssembler::Float64Trunc(Node* x) {
 }
 
 Node* CodeStubAssembler::SmiFromWord32(Node* value) {
-  if (Is64()) {
-    value = ChangeInt32ToInt64(value);
-  }
+  value = ChangeInt32ToIntPtr(value);
   return WordShl(value, SmiShiftBitsConstant());
 }
 
@@ -520,9 +518,7 @@ Node* CodeStubAssembler::LoadFixedArrayElementInt32Index(
     Node* object, Node* index, int additional_offset) {
   Node* header_size = IntPtrConstant(additional_offset +
                                      FixedArray::kHeaderSize - kHeapObjectTag);
-  if (Is64()) {
-    index = ChangeInt32ToInt64(index);
-  }
+  index = ChangeInt32ToIntPtr(index);
   Node* scaled_index = WordShl(index, IntPtrConstant(kPointerSizeLog2));
   Node* offset = IntPtrAdd(scaled_index, header_size);
   return Load(MachineType::AnyTagged(), object, offset);
@@ -555,6 +551,11 @@ Node* CodeStubAssembler::LoadFixedArrayElementConstantIndex(Node* object,
   return Load(MachineType::AnyTagged(), object, offset);
 }
 
+Node* CodeStubAssembler::LoadNativeContext(Node* context) {
+  return LoadFixedArrayElementConstantIndex(context,
+                                            Context::NATIVE_CONTEXT_INDEX);
+}
+
 Node* CodeStubAssembler::StoreHeapNumberValue(Node* object, Node* value) {
   return StoreNoWriteBarrier(
       MachineRepresentation::kFloat64, object,
@@ -582,6 +583,7 @@ Node* CodeStubAssembler::StoreMapNoWriteBarrier(Node* object, Node* map) {
 Node* CodeStubAssembler::StoreFixedArrayElementNoWriteBarrier(Node* object,
                                                               Node* index,
                                                               Node* value) {
+  index = ChangeInt32ToIntPtr(index);
   Node* offset =
       IntPtrAdd(WordShl(index, IntPtrConstant(kPointerSizeLog2)),
                 IntPtrConstant(FixedArray::kHeaderSize - kHeapObjectTag));
@@ -592,15 +594,50 @@ Node* CodeStubAssembler::StoreFixedArrayElementNoWriteBarrier(Node* object,
 Node* CodeStubAssembler::StoreFixedArrayElementInt32Index(Node* object,
                                                           Node* index,
                                                           Node* value) {
-  if (Is64()) {
-    index = ChangeInt32ToInt64(index);
-  }
+  index = ChangeInt32ToIntPtr(index);
   Node* offset =
       IntPtrAdd(WordShl(index, IntPtrConstant(kPointerSizeLog2)),
                 IntPtrConstant(FixedArray::kHeaderSize - kHeapObjectTag));
   return Store(MachineRepresentation::kTagged, object, offset, value);
 }
 
+Node* CodeStubAssembler::StoreFixedDoubleArrayElementInt32Index(Node* object,
+                                                                Node* index,
+                                                                Node* value) {
+  index = ChangeInt32ToIntPtr(index);
+  Node* offset =
+      IntPtrAdd(WordShl(index, IntPtrConstant(kPointerSizeLog2)),
+                IntPtrConstant(FixedArray::kHeaderSize - kHeapObjectTag));
+  return StoreNoWriteBarrier(MachineRepresentation::kFloat64, object, offset,
+                             value);
+}
+
+Node* CodeStubAssembler::StoreFixedArrayElementInt32Index(Node* object,
+                                                          int index,
+                                                          Node* value) {
+  Node* offset = IntPtrConstant(FixedArray::kHeaderSize - kHeapObjectTag +
+                                index * kPointerSize);
+  return Store(MachineRepresentation::kTagged, object, offset, value);
+}
+
+Node* CodeStubAssembler::StoreFixedArrayElementNoWriteBarrier(Node* object,
+                                                              int index,
+                                                              Node* value) {
+  Node* offset = IntPtrConstant(FixedArray::kHeaderSize - kHeapObjectTag +
+                                index * kPointerSize);
+  return StoreNoWriteBarrier(MachineRepresentation::kTagged, object, offset,
+                             value);
+}
+
+Node* CodeStubAssembler::StoreFixedDoubleArrayElementInt32Index(Node* object,
+                                                                int index,
+                                                                Node* value) {
+  Node* offset = IntPtrConstant(FixedDoubleArray::kHeaderSize - kHeapObjectTag +
+                                index * kDoubleSize);
+  return StoreNoWriteBarrier(MachineRepresentation::kFloat64, object, offset,
+                             value);
+}
+
 Node* CodeStubAssembler::AllocateHeapNumber() {
   Node* result = Allocate(HeapNumber::kSize, kNone);
   StoreMapNoWriteBarrier(result, HeapNumberMapConstant());
@@ -633,6 +670,85 @@ Node* CodeStubAssembler::AllocateSeqTwoByteString(int length) {
   return result;
 }
 
+Node* CodeStubAssembler::AllocateJSArray(ElementsKind kind,
+                                         Node* native_context, int capacity,
+                                         int length,
+                                         compiler::Node* allocation_site) {
+  bool is_double = IsFastDoubleElementsKind(kind);
+  int element_size = is_double ? kDoubleSize : kPointerSize;
+  int total_size =
+      JSArray::kSize + FixedArray::kHeaderSize + element_size * capacity;
+  int elements_offset = JSArray::kSize;
+
+  if (allocation_site != nullptr) {
+    total_size += AllocationMemento::kSize;
+    elements_offset += AllocationMemento::kSize;
+  }
+
+  // Allocate both array and elements object, and initialize the JSArray.
+  Heap* heap = isolate()->heap();
+  Node* array = Allocate(total_size);
+  Node* array_map = LoadFixedArrayElementConstantIndex(
+      native_context, Context::ArrayMapIndex(kind));
+  StoreMapNoWriteBarrier(array, array_map);
+  Node* empty_properties =
+      HeapConstant(Handle<HeapObject>(heap->empty_fixed_array()));
+  StoreObjectFieldNoWriteBarrier(array, JSArray::kPropertiesOffset,
+                                 empty_properties);
+  StoreObjectFieldNoWriteBarrier(array, JSArray::kLengthOffset,
+                                 SmiConstant(Smi::FromInt(length)));
+
+  if (allocation_site != nullptr) {
+    InitializeAllocationMemento(array, JSArray::kSize, allocation_site);
+  }
+
+  // Setup elements object.
+  Node* elements = InnerAllocate(array, elements_offset);
+  StoreObjectFieldNoWriteBarrier(array, JSArray::kElementsOffset, elements);
+  Handle<Map> elements_map(is_double ? heap->fixed_double_array_map()
+                                     : heap->fixed_array_map());
+  StoreMapNoWriteBarrier(elements, HeapConstant(elements_map));
+  StoreObjectFieldNoWriteBarrier(elements, FixedArray::kLengthOffset,
+                                 SmiConstant(Smi::FromInt(capacity)));
+
+  Node* double_hole = Float64Constant(bit_cast<double>(kHoleNanInt64));
+  Node* hole = HeapConstant(Handle<HeapObject>(heap->the_hole_value()));
+  if (capacity <= kElementLoopUnrollThreshold) {
+    for (int i = 0; i < capacity; ++i) {
+      if (is_double) {
+        StoreFixedDoubleArrayElementInt32Index(elements, i, double_hole);
+      } else {
+        StoreFixedArrayElementNoWriteBarrier(elements, i, hole);
+      }
+    }
+  } else {
+    // TODO(danno): Add a loop for initialization
+    UNIMPLEMENTED();
+  }
+
+  return array;
+}
+
+void CodeStubAssembler::InitializeAllocationMemento(
+    compiler::Node* base_allocation, int base_allocation_size,
+    compiler::Node* allocation_site) {
+  StoreObjectFieldNoWriteBarrier(
+      base_allocation, AllocationMemento::kMapOffset + base_allocation_size,
+      HeapConstant(Handle<Map>(isolate()->heap()->allocation_memento_map())));
+  StoreObjectFieldNoWriteBarrier(
+      base_allocation,
+      AllocationMemento::kAllocationSiteOffset + base_allocation_size,
+      allocation_site);
+  if (FLAG_allocation_site_pretenuring) {
+    Node* count = LoadObjectField(allocation_site,
+                                  AllocationSite::kPretenureCreateCountOffset);
+    Node* incremented_count = IntPtrAdd(count, SmiConstant(Smi::FromInt(1)));
+    StoreObjectFieldNoWriteBarrier(allocation_site,
+                                   AllocationSite::kPretenureCreateCountOffset,
+                                   incremented_count);
+  }
+}
+
 Node* CodeStubAssembler::TruncateTaggedToFloat64(Node* context, Node* value) {
   // We might need to loop once due to ToNumber conversion.
   Variable var_value(this, MachineRepresentation::kTagged),

src/code-stub-assembler.h

@@ -139,6 +139,9 @@ class CodeStubAssembler : public compiler::CodeAssembler {
   compiler::Node* LoadFixedArrayElementConstantIndex(compiler::Node* object,
                                                      int index);
 
+  // Context manipulation
+  compiler::Node* LoadNativeContext(compiler::Node* context);
+
   // Store the floating point value of a HeapNumber.
   compiler::Node* StoreHeapNumberValue(compiler::Node* object,
                                        compiler::Node* value);
@@ -158,6 +161,18 @@ class CodeStubAssembler : public compiler::CodeAssembler {
   compiler::Node* StoreFixedArrayElementNoWriteBarrier(compiler::Node* object,
                                                        compiler::Node* index,
                                                        compiler::Node* value);
+  compiler::Node* StoreFixedDoubleArrayElementInt32Index(compiler::Node* object,
+                                                         compiler::Node* index,
+                                                         compiler::Node* value);
+  compiler::Node* StoreFixedArrayElementInt32Index(compiler::Node* object,
+                                                   int index,
+                                                   compiler::Node* value);
+  compiler::Node* StoreFixedArrayElementNoWriteBarrier(compiler::Node* object,
+                                                       int index,
+                                                       compiler::Node* value);
+  compiler::Node* StoreFixedDoubleArrayElementInt32Index(compiler::Node* object,
+                                                         int index,
+                                                         compiler::Node* value);
 
   // Allocate a HeapNumber without initializing its value.
   compiler::Node* AllocateHeapNumber();
@@ -167,6 +182,16 @@ class CodeStubAssembler : public compiler::CodeAssembler {
   compiler::Node* AllocateSeqOneByteString(int length);
   // Allocate a SeqTwoByteString with the given length.
   compiler::Node* AllocateSeqTwoByteString(int length);
+  // Allocated an JSArray
+  compiler::Node* AllocateJSArray(ElementsKind kind,
+                                  compiler::Node* native_context, int capacity,
+                                  int length,
+                                  compiler::Node* allocation_site = nullptr);
+
+  // Allocation site manipulation
+  void InitializeAllocationMemento(compiler::Node* base_allocation,
+                                   int base_allocation_size,
+                                   compiler::Node* allocation_site);
 
   compiler::Node* TruncateTaggedToFloat64(compiler::Node* context,
                                           compiler::Node* value);
@@ -211,6 +236,8 @@ class CodeStubAssembler : public compiler::CodeAssembler {
                                        AllocationFlags flags,
                                        compiler::Node* top_adddress,
                                        compiler::Node* limit_address);
+
+  static const int kElementLoopUnrollThreshold = 8;
 };
 
 }  // namespace internal

src/code-stubs-hydrogen.cc

@@ -1408,12 +1408,6 @@ HValue* CodeStubGraphBuilder<ArrayNoArgumentConstructorStub>::BuildCodeStub() {
   return BuildArrayConstructor(kind, override_mode, NONE);
 }
 
-
-Handle<Code> ArrayNoArgumentConstructorStub::GenerateCode() {
-  return DoGenerateCode(this);
-}
-
-
 template <>
 HValue* CodeStubGraphBuilder<ArraySingleArgumentConstructorStub>::
     BuildCodeStub() {

src/code-stubs.cc

@@ -4250,6 +4250,26 @@ void ProfileEntryHookStub::EntryHookTrampoline(intptr_t function,
   entry_hook(function, stack_pointer);
 }
 
+void ArrayNoArgumentConstructorStub::GenerateAssembly(
+    CodeStubAssembler* assembler) const {
+  typedef compiler::Node Node;
+  Node* native_context = assembler->LoadObjectField(
+      assembler->Parameter(
+          ArrayNoArgumentConstructorDescriptor::kFunctionIndex),
+      JSFunction::kContextOffset);
+  bool track_allocation_site =
+      AllocationSite::GetMode(elements_kind()) == TRACK_ALLOCATION_SITE &&
+      override_mode() != DISABLE_ALLOCATION_SITES;
+  Node* allocation_site =
+      track_allocation_site
+          ? assembler->Parameter(
+                ArrayNoArgumentConstructorDescriptor::kAllocationSiteIndex)
+          : nullptr;
+  Node* array = assembler->AllocateJSArray(elements_kind(), native_context,
+                                           JSArray::kPreallocatedArrayElements,
+                                           0, allocation_site);
+  assembler->Return(array);
+}
 
 ArrayConstructorStub::ArrayConstructorStub(Isolate* isolate)
     : PlatformCodeStub(isolate) {

src/code-stubs.h

@@ -2801,26 +2801,48 @@ class ArrayConstructorStubBase : public HydrogenCodeStub {
   DEFINE_CODE_STUB_BASE(ArrayConstructorStubBase, HydrogenCodeStub);
 };
 
-
-class ArrayNoArgumentConstructorStub : public ArrayConstructorStubBase {
+class ArrayNoArgumentConstructorStub : public TurboFanCodeStub {
  public:
   ArrayNoArgumentConstructorStub(
-      Isolate* isolate,
-      ElementsKind kind,
+      Isolate* isolate, ElementsKind kind,
       AllocationSiteOverrideMode override_mode = DONT_OVERRIDE)
-      : ArrayConstructorStubBase(isolate, kind, override_mode) {
+      : TurboFanCodeStub(isolate) {
+    // It only makes sense to override local allocation site behavior
+    // if there is a difference between the global allocation site policy
+    // for an ElementsKind and the desired usage of the stub.
+    DCHECK(override_mode != DISABLE_ALLOCATION_SITES ||
+           AllocationSite::GetMode(kind) == TRACK_ALLOCATION_SITE);
+    set_sub_minor_key(ElementsKindBits::encode(kind) |
+                      AllocationSiteOverrideModeBits::encode(override_mode));
+  }
+
+  void set_sub_minor_key(uint32_t key) { minor_key_ = key; }
+
+  uint32_t sub_minor_key() const { return minor_key_; }
+
+  ElementsKind elements_kind() const {
+    return ElementsKindBits::decode(sub_minor_key());
+  }
+
+  AllocationSiteOverrideMode override_mode() const {
+    return AllocationSiteOverrideModeBits::decode(sub_minor_key());
   }
 
  private:
   void PrintName(std::ostream& os) const override {  // NOLINT
-    BasePrintName(os, "ArrayNoArgumentConstructorStub");
+    os << "ArrayNoArgumentConstructorStub";
   }
 
-  DEFINE_CALL_INTERFACE_DESCRIPTOR(ArrayConstructorConstantArgCount);
-  DEFINE_HYDROGEN_CODE_STUB(ArrayNoArgumentConstructor,
-                            ArrayConstructorStubBase);
-};
+  // Ensure data fits within available bits.
+  STATIC_ASSERT(LAST_ALLOCATION_SITE_OVERRIDE_MODE == 1);
 
+  class ElementsKindBits : public BitField<ElementsKind, 0, 8> {};
+  class AllocationSiteOverrideModeBits
+      : public BitField<AllocationSiteOverrideMode, 8, 1> {};  // NOLINT
+
+  DEFINE_CALL_INTERFACE_DESCRIPTOR(ArrayNoArgumentConstructor);
+  DEFINE_TURBOFAN_CODE_STUB(ArrayNoArgumentConstructor, TurboFanCodeStub);
+};
 
 class ArraySingleArgumentConstructorStub : public ArrayConstructorStubBase {
  public:

src/heap/heap.cc

@@ -2722,8 +2722,6 @@ void Heap::CreateInitialObjects() {
 #undef SYMBOL_INIT
   }
 
-  CreateFixedStubs();
-
   // Allocate the dictionary of intrinsic function names.
   Handle<NameDictionary> intrinsic_names =
       NameDictionary::New(isolate(), Runtime::kNumFunctions, TENURED);
@@ -2865,6 +2863,8 @@ void Heap::CreateInitialObjects() {
 
   // Initialize compilation cache.
   isolate_->compilation_cache()->Clear();
+
+  CreateFixedStubs();
 }
 
 

src/ia32/code-stubs-ia32.cc

@@ -62,12 +62,6 @@ static void InitializeInternalArrayConstructorDescriptor(
 }
 
 
-void ArrayNoArgumentConstructorStub::InitializeDescriptor(
-    CodeStubDescriptor* descriptor) {
-  InitializeArrayConstructorDescriptor(isolate(), descriptor, 0);
-}
-
-
 void ArraySingleArgumentConstructorStub::InitializeDescriptor(
     CodeStubDescriptor* descriptor) {
   InitializeArrayConstructorDescriptor(isolate(), descriptor, 1);

src/ia32/interface-descriptors-ia32.cc

@@ -251,6 +251,16 @@ void AllocateHeapNumberDescriptor::InitializePlatformSpecific(
 SIMD128_TYPES(SIMD128_ALLOC_DESC)
 #undef SIMD128_ALLOC_DESC
 
+void ArrayNoArgumentConstructorDescriptor::InitializePlatformSpecific(
+    CallInterfaceDescriptorData* data) {
+  // register state
+  // eax -- number of arguments
+  // edi -- function
+  // ebx -- allocation site with elements kind
+  Register registers[] = {edi, ebx, eax};
+  data->InitializePlatformSpecific(arraysize(registers), registers, NULL);
+}
+
 void ArrayConstructorConstantArgCountDescriptor::InitializePlatformSpecific(
     CallInterfaceDescriptorData* data) {
   // register state

src/interface-descriptors.cc

@@ -439,6 +439,19 @@ FunctionType* CallFunctionWithFeedbackAndVectorDescriptor::
   return function;
 }
 
+FunctionType*
+ArrayNoArgumentConstructorDescriptor::BuildCallInterfaceDescriptorFunctionType(
+    Isolate* isolate, int paramater_count) {
+  Zone* zone = isolate->interface_descriptor_zone();
+  FunctionType* function =
+      Type::Function(AnyTagged(zone), Type::Undefined(), 4, zone)->AsFunction();
+  function->InitParameter(0, Type::Receiver());  // JSFunction
+  function->InitParameter(1, AnyTagged(zone));
+  function->InitParameter(2, UntaggedIntegral32(zone));
+  function->InitParameter(3, AnyTagged(zone));
+  return function;
+}
+
 FunctionType*
 ArrayConstructorDescriptor::BuildCallInterfaceDescriptorFunctionType(
     Isolate* isolate, int paramater_count) {

src/interface-descriptors.h

@@ -58,6 +58,7 @@ class PlatformInterfaceDescriptor;
   V(AllocateInt8x16)                          \
   V(AllocateUint8x16)                         \
   V(AllocateBool8x16)                         \
+  V(ArrayNoArgumentConstructor)               \
   V(ArrayConstructorConstantArgCount)         \
   V(ArrayConstructor)                         \
   V(InternalArrayConstructorConstantArgCount) \
@@ -577,6 +578,17 @@ class AllocateMutableHeapNumberDescriptor : public CallInterfaceDescriptor {
                      CallInterfaceDescriptor)
 };
 
+class ArrayNoArgumentConstructorDescriptor : public CallInterfaceDescriptor {
+ public:
+  DECLARE_DESCRIPTOR_WITH_CUSTOM_FUNCTION_TYPE(
+      ArrayNoArgumentConstructorDescriptor, CallInterfaceDescriptor)
+  enum ParameterIndices {
+    kFunctionIndex,
+    kAllocationSiteIndex,
+    kArgumentCountIndex,
+    kContextIndex
+  };
+};
 
 class ArrayConstructorConstantArgCountDescriptor
     : public CallInterfaceDescriptor {

src/mips/code-stubs-mips.cc

@@ -54,12 +54,6 @@ static void InitializeInternalArrayConstructorDescriptor(
 }
 
 
-void ArrayNoArgumentConstructorStub::InitializeDescriptor(
-    CodeStubDescriptor* descriptor) {
-  InitializeArrayConstructorDescriptor(isolate(), descriptor, 0);
-}
-
-
 void ArraySingleArgumentConstructorStub::InitializeDescriptor(
     CodeStubDescriptor* descriptor) {
   InitializeArrayConstructorDescriptor(isolate(), descriptor, 1);

src/mips/interface-descriptors-mips.cc

@@ -246,6 +246,16 @@ void AllocateHeapNumberDescriptor::InitializePlatformSpecific(
 SIMD128_TYPES(SIMD128_ALLOC_DESC)
 #undef SIMD128_ALLOC_DESC
 
+void ArrayNoArgumentConstructorDescriptor::InitializePlatformSpecific(
+    CallInterfaceDescriptorData* data) {
+  // register state
+  // a0 -- number of arguments
+  // a1 -- function
+  // a2 -- allocation site with elements kind
+  Register registers[] = {a1, a2, a0};
+  data->InitializePlatformSpecific(arraysize(registers), registers, NULL);
+}
+
 void ArrayConstructorConstantArgCountDescriptor::InitializePlatformSpecific(
     CallInterfaceDescriptorData* data) {
   // register state

src/mips64/code-stubs-mips64.cc

@@ -53,12 +53,6 @@ static void InitializeInternalArrayConstructorDescriptor(
 }
 
 
-void ArrayNoArgumentConstructorStub::InitializeDescriptor(
-    CodeStubDescriptor* descriptor) {
-  InitializeArrayConstructorDescriptor(isolate(), descriptor, 0);
-}
-
-
 void ArraySingleArgumentConstructorStub::InitializeDescriptor(
     CodeStubDescriptor* descriptor) {
   InitializeArrayConstructorDescriptor(isolate(), descriptor, 1);

src/mips64/interface-descriptors-mips64.cc

@@ -246,6 +246,16 @@ void AllocateHeapNumberDescriptor::InitializePlatformSpecific(
 SIMD128_TYPES(SIMD128_ALLOC_DESC)
 #undef SIMD128_ALLOC_DESC
 
+void ArrayNoArgumentConstructorDescriptor::InitializePlatformSpecific(
+    CallInterfaceDescriptorData* data) {
+  // register state
+  // a0 -- number of arguments
+  // a1 -- function
+  // a2 -- allocation site with elements kind
+  Register registers[] = {a1, a2, a0};
+  data->InitializePlatformSpecific(arraysize(registers), registers, NULL);
+}
+
 void ArrayConstructorConstantArgCountDescriptor::InitializePlatformSpecific(
     CallInterfaceDescriptorData* data) {
   // register state

src/x64/code-stubs-x64.cc

@@ -53,12 +53,6 @@ static void InitializeInternalArrayConstructorDescriptor(
 }
 
 
-void ArrayNoArgumentConstructorStub::InitializeDescriptor(
-    CodeStubDescriptor* descriptor) {
-  InitializeArrayConstructorDescriptor(isolate(), descriptor, 0);
-}
-
-
 void ArraySingleArgumentConstructorStub::InitializeDescriptor(
     CodeStubDescriptor* descriptor) {
   InitializeArrayConstructorDescriptor(isolate(), descriptor, 1);

src/x64/interface-descriptors-x64.cc

@@ -242,6 +242,16 @@ void AllocateHeapNumberDescriptor::InitializePlatformSpecific(
 SIMD128_TYPES(SIMD128_ALLOC_DESC)
 #undef SIMD128_ALLOC_DESC
 
+void ArrayNoArgumentConstructorDescriptor::InitializePlatformSpecific(
+    CallInterfaceDescriptorData* data) {
+  // register state
+  // rax -- number of arguments
+  // rdi -- function
+  // rbx -- allocation site with elements kind
+  Register registers[] = {rdi, rbx, rax};
+  data->InitializePlatformSpecific(arraysize(registers), registers, NULL);
+}
+
 void ArrayConstructorConstantArgCountDescriptor::InitializePlatformSpecific(
     CallInterfaceDescriptorData* data) {
   // register state