[stubs] Convert InternalArrayNoArgumentsConstructor to a TurboFan stub

src/code-stubs.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_CODE_STUBS_H_
 #define V8_CODE_STUBS_H_
 
 #include "src/allocation.h"
 #include "src/assembler.h"
 #include "src/code-stub-assembler.h"
@@ skipping 40 matching lines @@
   V(StringToNumber)                         \
   V(ToString)                               \
   V(ToName)                                 \
   V(ToObject)                               \
   V(VectorStoreICTrampoline)                \
   V(VectorKeyedStoreICTrampoline)           \
   V(VectorStoreIC)                          \
   V(VectorKeyedStoreIC)                     \
   /* HydrogenCodeStubs */                   \
   V(ArrayNArgumentsConstructor)             \
-  V(ArrayNoArgumentConstructor)             \
   V(ArraySingleArgumentConstructor)         \
   V(BinaryOpIC)                             \
   V(BinaryOpWithAllocationSite)             \
   V(CreateAllocationSite)                   \
   V(CreateWeakCell)                         \
   V(ElementsTransitionAndStore)             \
   V(FastArrayPush)                          \
   V(FastCloneRegExp)                        \
   V(FastCloneShallowArray)                  \
   V(FastNewClosure)                         \
   V(FastNewContext)                         \
   V(FastNewObject)                          \
   V(FastNewRestParameter)                   \
   V(FastNewSloppyArguments)                 \
   V(FastNewStrictArguments)                 \
   V(GrowArrayElements)                      \
   V(InternalArrayNArgumentsConstructor)     \
-  V(InternalArrayNoArgumentConstructor)     \
   V(InternalArraySingleArgumentConstructor) \
   V(KeyedLoadGeneric)                       \
   V(LoadGlobalViaContext)                   \
   V(LoadScriptContextField)                 \
   V(LoadDictionaryElement)                  \
   V(NameDictionaryLookup)                   \
   V(NumberToString)                         \
   V(Typeof)                                 \
   V(RegExpConstructResult)                  \
   V(StoreFastElement)                       \
@@ skipping 10 matching lines @@
   V(AllocateFloat32x4)                      \
   V(AllocateInt32x4)                        \
   V(AllocateUint32x4)                       \
   V(AllocateBool32x4)                       \
   V(AllocateInt16x8)                        \
   V(AllocateUint16x8)                       \
   V(AllocateBool16x8)                       \
   V(AllocateInt8x16)                        \
   V(AllocateUint8x16)                       \
   V(AllocateBool8x16)                       \
+  V(ArrayNoArgumentConstructor)             \
   V(StringLength)                           \
   V(Add)                                    \
   V(Subtract)                               \
   V(Multiply)                               \
   V(Divide)                                 \
   V(Modulus)                                \
   V(ShiftRight)                             \
   V(ShiftRightLogical)                      \
   V(ShiftLeft)                              \
   V(BitwiseAnd)                             \
   V(BitwiseOr)                              \
   V(BitwiseXor)                             \
   V(Inc)                                    \
+  V(InternalArrayNoArgumentConstructor)     \
   V(Dec)                                    \
   V(FastCloneShallowObject)                 \
   V(LessThan)                               \
   V(LessThanOrEqual)                        \
   V(GreaterThan)                            \
   V(GreaterThanOrEqual)                     \
   V(Equal)                                  \
   V(NotEqual)                               \
   V(StrictEqual)                            \
   V(StrictNotEqual)                         \
@@ skipping 2661 matching lines @@
   // 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_CODE_STUB_BASE(ArrayConstructorStubBase, HydrogenCodeStub);
 };
 
-class ArrayNoArgumentConstructorStub : public TurboFanCodeStub {
- public:
-  ArrayNoArgumentConstructorStub(
-      Isolate* isolate, ElementsKind kind,
-      AllocationSiteOverrideMode override_mode = DONT_OVERRIDE)
+class CommonArrayConstructorStub : public TurboFanCodeStub {
+ protected:
+  CommonArrayConstructorStub(Isolate* isolate, ElementsKind kind,
+                             AllocationSiteOverrideMode 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_; }
 
+  CommonArrayConstructorStub(uint32_t key, Isolate* isolate)
+      : TurboFanCodeStub(key, isolate) {}
+
+ public:
   ElementsKind elements_kind() const {
     return ElementsKindBits::decode(sub_minor_key());
   }
 
   AllocationSiteOverrideMode override_mode() const {
     return AllocationSiteOverrideModeBits::decode(sub_minor_key());
   }
 
  private:
+  // 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
+};
+
+class ArrayNoArgumentConstructorStub : public CommonArrayConstructorStub {
+ public:
+  ArrayNoArgumentConstructorStub(
+      Isolate* isolate, ElementsKind kind,
+      AllocationSiteOverrideMode override_mode = DONT_OVERRIDE)
+      : CommonArrayConstructorStub(isolate, kind, override_mode) {}
+
+ private:
   void PrintName(std::ostream& os) const override {  // NOLINT
     os << "ArrayNoArgumentConstructorStub";
   }
 
-  // Ensure data fits within available bits.
-  STATIC_ASSERT(LAST_ALLOCATION_SITE_OVERRIDE_MODE == 1);
+  DEFINE_CALL_INTERFACE_DESCRIPTOR(ArrayNoArgumentConstructor);
+  DEFINE_TURBOFAN_CODE_STUB(ArrayNoArgumentConstructor,
+                            CommonArrayConstructorStub);
+};
 
-  class ElementsKindBits : public BitField<ElementsKind, 0, 8> {};
-  class AllocationSiteOverrideModeBits
-      : public BitField<AllocationSiteOverrideMode, 8, 1> {};  // NOLINT
+class InternalArrayNoArgumentConstructorStub
+    : public CommonArrayConstructorStub {
+ public:
+  InternalArrayNoArgumentConstructorStub(Isolate* isolate, ElementsKind kind)
+      : CommonArrayConstructorStub(isolate, kind, DONT_OVERRIDE) {}
+
+ private:
+  void PrintName(std::ostream& os) const override {  // NOLINT
+    os << "InternalArrayNoArgumentConstructorStub";
+  }
 
   DEFINE_CALL_INTERFACE_DESCRIPTOR(ArrayNoArgumentConstructor);
-  DEFINE_TURBOFAN_CODE_STUB(ArrayNoArgumentConstructor, TurboFanCodeStub);
+  DEFINE_TURBOFAN_CODE_STUB(InternalArrayNoArgumentConstructor,
+                            CommonArrayConstructorStub);
 };
 
 class ArraySingleArgumentConstructorStub : public ArrayConstructorStubBase {
  public:
   ArraySingleArgumentConstructorStub(
       Isolate* isolate,
       ElementsKind kind,
       AllocationSiteOverrideMode override_mode = DONT_OVERRIDE)
       : ArrayConstructorStubBase(isolate, kind, override_mode) {
   }
@@ skipping 45 matching lines @@
     return ElementsKindBits::decode(sub_minor_key());
   }
 
  private:
   class ElementsKindBits : public BitField<ElementsKind, 0, 8> {};
 
   DEFINE_CODE_STUB_BASE(InternalArrayConstructorStubBase, HydrogenCodeStub);
 };
 
 
-class InternalArrayNoArgumentConstructorStub : public
-    InternalArrayConstructorStubBase {
- public:
-  InternalArrayNoArgumentConstructorStub(Isolate* isolate,
-                                         ElementsKind kind)
-      : InternalArrayConstructorStubBase(isolate, kind) { }
-
-  DEFINE_CALL_INTERFACE_DESCRIPTOR(InternalArrayConstructorConstantArgCount);
-  DEFINE_HYDROGEN_CODE_STUB(InternalArrayNoArgumentConstructor,
-                            InternalArrayConstructorStubBase);
-};
-
-
 class InternalArraySingleArgumentConstructorStub : public
     InternalArrayConstructorStubBase {
  public:
   InternalArraySingleArgumentConstructorStub(Isolate* isolate,
                                              ElementsKind kind)
       : InternalArrayConstructorStubBase(isolate, kind) { }
 
   DEFINE_CALL_INTERFACE_DESCRIPTOR(InternalArrayConstructor);
   DEFINE_HYDROGEN_CODE_STUB(InternalArraySingleArgumentConstructor,
                             InternalArrayConstructorStubBase);
@@ skipping 273 matching lines @@
 #undef DEFINE_HYDROGEN_CODE_STUB
 #undef DEFINE_CODE_STUB
 #undef DEFINE_CODE_STUB_BASE
 
 extern Representation RepresentationFromType(Type* type);
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_CODE_STUBS_H_