In-heap small typed arrays

src/runtime.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 364 matching lines @@
   F(ArrayBufferSliceImpl, 3, 1) \
   F(ArrayBufferIsView, 1, 1) \
   \
   F(TypedArrayInitialize, 5, 1) \
   F(TypedArrayInitializeFromArrayLike, 4, 1) \
   F(TypedArrayGetBuffer, 1, 1) \
   F(TypedArrayGetByteLength, 1, 1) \
   F(TypedArrayGetByteOffset, 1, 1) \
   F(TypedArrayGetLength, 1, 1) \
   F(TypedArraySetFastCases, 3, 1) \
+  F(TypedArrayInHeapThreshold, 0, 1) \
   \
   F(DataViewInitialize, 4, 1) \
   F(DataViewGetBuffer, 1, 1) \
   F(DataViewGetByteLength, 1, 1) \
   F(DataViewGetByteOffset, 1, 1) \
   F(DataViewGetInt8, 3, 1) \
   F(DataViewGetUint8, 3, 1) \
   F(DataViewGetInt16, 3, 1) \
   F(DataViewGetUint16, 3, 1) \
   F(DataViewGetInt32, 3, 1) \
@@ skipping 78 matching lines @@
   F(HasExternalUint8ClampedElements, 1, 1) \
   F(HasExternalArrayElements, 1, 1) \
   F(HasExternalInt8Elements, 1, 1) \
   F(HasExternalUint8Elements, 1, 1) \
   F(HasExternalInt16Elements, 1, 1) \
   F(HasExternalUint16Elements, 1, 1) \
   F(HasExternalInt32Elements, 1, 1) \
   F(HasExternalUint32Elements, 1, 1) \
   F(HasExternalFloat32Elements, 1, 1) \
   F(HasExternalFloat64Elements, 1, 1) \
+  F(HasFixedUint8ClampedElements, 1, 1) \
+  F(HasFixedInt8Elements, 1, 1) \
+  F(HasFixedUint8Elements, 1, 1) \
+  F(HasFixedInt16Elements, 1, 1) \
+  F(HasFixedUint16Elements, 1, 1) \
+  F(HasFixedInt32Elements, 1, 1) \
+  F(HasFixedUint32Elements, 1, 1) \
+  F(HasFixedFloat32Elements, 1, 1) \
+  F(HasFixedFloat64Elements, 1, 1) \
   F(HasFastProperties, 1, 1) \
   F(TransitionElementsKind, 2, 1) \
   F(HaveSameMap, 2, 1) \
   F(IsAccessCheckNeeded, 1, 1)
 
 
 #ifdef ENABLE_DEBUGGER_SUPPORT
 #define RUNTIME_FUNCTION_LIST_DEBUGGER_SUPPORT(F) \
   /* Debugger support*/ \
   F(DebugBreak, 0, 1) \
@@ skipping 354 matching lines @@
     ARRAY_ID_UINT16 = 3,
     ARRAY_ID_INT16 = 4,
     ARRAY_ID_UINT32 = 5,
     ARRAY_ID_INT32 = 6,
     ARRAY_ID_FLOAT32 = 7,
     ARRAY_ID_FLOAT64 = 8,
     ARRAY_ID_UINT8_CLAMPED = 9
   };
 
   static void ArrayIdToTypeAndSize(int array_id,
-      ExternalArrayType *type, size_t *element_size);
+      ExternalArrayType *type,
+      ElementsKind* external_elements_kind,
+      ElementsKind* fixed_elements_kind,
+      size_t *element_size);
 
   // Helper functions used stubs.
   static void PerformGC(Object* result, Isolate* isolate);
 
   // Used in runtime.cc and hydrogen's VisitArrayLiteral.
   static Handle<Object> CreateArrayLiteralBoilerplate(
       Isolate* isolate,
       Handle<FixedArray> literals,
       Handle<FixedArray> elements);
 };
 
 
 //---------------------------------------------------------------------------
 // Constants used by interface to runtime functions.
 
 class AllocateDoubleAlignFlag:    public BitField<bool,            0, 1> {};
 class AllocateTargetSpace:        public BitField<AllocationSpace, 1, 3> {};
 
 class DeclareGlobalsEvalFlag:     public BitField<bool,         0, 1> {};
 class DeclareGlobalsNativeFlag:   public BitField<bool,         1, 1> {};
 class DeclareGlobalsLanguageMode: public BitField<LanguageMode, 2, 2> {};
 
 } }  // namespace v8::internal
 
 #endif  // V8_RUNTIME_H_