Fast string construct stub (ia32 only for now).

src/ia32/macro-assembler-ia32.h

 // Copyright 2006-2009 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 122 matching lines @@
   void EnterApiExitFrame(ExitFrame::Mode mode, int stack_space, int argc);
 
   // Leave the current exit frame. Expects the return value in
   // register eax:edx (untouched) and the pointer to the first
   // argument in register esi.
   void LeaveExitFrame(ExitFrame::Mode mode);
 
   // Find the function context up the context chain.
   void LoadContext(Register dst, int context_chain_length);
 
+  // Load the global function with the given index.
+  void LoadGlobalFunction(int index, Register function);
+
+  // Load the initial map from the global function. The registers
+  // function and map can be the same.
+  void LoadGlobalFunctionInitialMap(Register function, Register map);
+
   // ---------------------------------------------------------------------------
   // JavaScript invokes
 
   // Invoke the JavaScript function code by either calling or jumping.
   void InvokeCode(const Operand& code,
                   const ParameterCount& expected,
                   const ParameterCount& actual,
                   InvokeFlag flag);
 
   void InvokeCode(Handle<Code> code,
@@ skipping 486 matching lines @@
   }                                                                       \
   masm->
 #else
 #define ACCESS_MASM(masm) masm->
 #endif
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_IA32_MACRO_ASSEMBLER_IA32_H_