In-heap small typed arrays

src/hydrogen.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 1354 matching lines @@
                                 HValue* right,
                                 HAllocationMode allocation_mode);
   // Copies characters from one sequential string to another.
   void BuildCopySeqStringChars(HValue* src,
                                HValue* src_offset,
                                String::Encoding src_encoding,
                                HValue* dst,
                                HValue* dst_offset,
                                String::Encoding dst_encoding,
                                HValue* length);
+
+  // Align an object size to object alignment boundary
+  HValue* BuildObjectSizeAlignment(HValue* unaligned_size, int header_size);
+
   // Both operands are non-empty strings.
   HValue* BuildUncheckedStringAdd(HValue* left,
                                   HValue* right,
                                   HAllocationMode allocation_mode);
   // Add two strings using allocation mode, validating type feedback.
   HValue* BuildStringAdd(HValue* left,
                          HValue* right,
                          HAllocationMode allocation_mode);
 
   HInstruction* BuildUncheckedMonomorphicElementAccess(
@@ skipping 930 matching lines @@
   void HandlePropertyAssignment(Assignment* expr);
   void HandleCompoundAssignment(Assignment* expr);
   void HandlePolymorphicNamedFieldAccess(PropertyAccessType access_type,
                                          BailoutId ast_id,
                                          BailoutId return_id,
                                          HValue* object,
                                          HValue* value,
                                          SmallMapList* types,
                                          Handle<String> name);
 
+  HValue* BuildAllocateExternalElements(
+      ExternalArrayType array_type,
+      bool is_zero_byte_offset,
+      HValue* buffer, HValue* byte_offset, HValue* length);
+  HValue* BuildAllocateFixedTypedArray(
+      ExternalArrayType array_type, size_t element_size,
+      ElementsKind fixed_elements_kind,
+      HValue* byte_length, HValue* length);
+
   bool IsCallNewArrayInlineable(CallNew* expr);
   void BuildInlinedCallNewArray(CallNew* expr);
 
   class PropertyAccessInfo {
    public:
     PropertyAccessInfo(HOptimizedGraphBuilder* builder,
                        PropertyAccessType access_type,
                        Type* type,
                        Handle<String> name)
         : lookup_(builder->isolate()),
@@ skipping 450 matching lines @@
   }
 
  private:
   HGraphBuilder* builder_;
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_HYDROGEN_H_