Cache optimized code on shared function info.

src/ia32/macro-assembler-ia32.h

 // Copyright 2010 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 748 matching lines @@
 
 // Generate an Operand for loading an indexed field from an object.
 static inline Operand FieldOperand(Register object,
                                    Register index,
                                    ScaleFactor scale,
                                    int offset) {
   return Operand(object, index, scale, offset - kHeapObjectTag);
 }
 
 
+// Return a position of the element at |index_as_smi| + |additional_offset|
+// in FixedArray pointer to which is held in |array|.  |index_as_smi| is Smi.
+static inline Operand FixedArrayElementOperand(Register array,
+                                               Register index_as_smi,
+                                               int additional_offset = 0) {
+  int offset = FixedArray::kHeaderSize + additional_offset * kPointerSize;
+  return FieldOperand(array, index_as_smi, times_half_pointer_size, offset);
+}
+
 static inline Operand ContextOperand(Register context, int index) {
   return Operand(context, Context::SlotOffset(index));
 }
 
 
 static inline Operand GlobalObjectOperand() {
   return ContextOperand(esi, Context::GLOBAL_INDEX);
 }
 
 
@@ skipping 19 matching lines @@
   }                                                                       \
   masm->
 #else
 #define ACCESS_MASM(masm) masm->
 #endif
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_IA32_MACRO_ASSEMBLER_IA32_H_