[Arm]: Optimize ConstantPoolBuilder::Populate code by minimizing calls to OffsetOfElementAt

src/objects.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_OBJECTS_H_
 #define V8_OBJECTS_H_
 
 #include "src/allocation.h"
 #include "src/assert-scope.h"
 #include "src/builtins.h"
@@ skipping 3107 matching lines @@
     HEAP_PTR,
     INT32,
     // Number of types stored by the ConstantPoolArrays.
     NUMBER_OF_TYPES,
     FIRST_TYPE = INT64,
     LAST_TYPE = INT32
   };
 
   enum LayoutSection {
     SMALL_SECTION = 0,
-    EXTENDED_SECTION
+    EXTENDED_SECTION,
+    NUMBER_OF_LAYOUT_SECTIONS
   };
 
   class NumberOfEntries BASE_EMBEDDED {
    public:
     inline NumberOfEntries() {
       for (int i = 0; i < NUMBER_OF_TYPES; i++) {
         element_counts_[i] = 0;
       }
     }
 
@@ skipping 58 matching lines @@
   };
 
   // Getters for the first index, the last index and the count of entries of
   // a given type for a given layout section.
   inline int first_index(Type type, LayoutSection layout_section);
   inline int last_index(Type type, LayoutSection layout_section);
   inline int number_of_entries(Type type, LayoutSection layout_section);
 
   // Returns the type of the entry at the given index.
   inline Type get_type(int index);
+  inline bool offset_is_type(int offset, Type type);
 
   // Setter and getter for pool elements.
   inline Address get_code_ptr_entry(int index);
   inline Object* get_heap_ptr_entry(int index);
   inline int64_t get_int64_entry(int index);
   inline int32_t get_int32_entry(int index);
   inline double get_int64_entry_as_double(int index);
 
   inline void set(int index, Address value);
   inline void set(int index, Object* value);
   inline void set(int index, int64_t value);
   inline void set(int index, double value);
   inline void set(int index, int32_t value);
 
+  // Setters which take a raw offset rather than an index (for code generation).
+  inline void set_at_offset(int offset, int32_t value);
+  inline void set_at_offset(int offset, int64_t value);
+  inline void set_at_offset(int offset, double value);
+  inline void set_at_offset(int offset, Address value);
+  inline void set_at_offset(int offset, Object* value);
+
   // Setter and getter for weak objects state
   inline void set_weak_object_state(WeakObjectState state);
   inline WeakObjectState get_weak_object_state();
 
   // Returns true if the constant pool has an extended layout, false if it has
   // only the small layout.
   inline bool is_extended_layout();
 
   // Returns the last LayoutSection in this constant pool array.
   inline LayoutSection final_section();
@@ skipping 7984 matching lines @@
     } else {
       value &= ~(1 << bit_position);
     }
     return value;
   }
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_OBJECTS_H_