Use the virtual-frame based optimizing compiler for split-compilation...

src/arm/codegen-arm.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 132 matching lines @@
   JumpTarget* false_target_;
   CodeGenState* previous_;
 };
 
 
 // -------------------------------------------------------------------------
 // CodeGenerator
 
 class CodeGenerator: public AstVisitor {
  public:
+  // Compilation mode.  Either the compiler is used as the primary
+  // compiler and needs to setup everything or the compiler is used as
+  // the secondary compiler for split compilation and has to handle
+  // bailouts.
+  enum Mode {
+    PRIMARY,
+    SECONDARY
+  };
+
   // Takes a function literal, generates code for it. This function should only
   // be called by compiler.cc.
   static Handle<Code> MakeCode(FunctionLiteral* fun,
                                Handle<Script> script,
                                bool is_eval,
                                CompilationInfo* info);
 
   // Printing of AST, etc. as requested by flags.
   static void MakeCodePrologue(FunctionLiteral* fun);
 
@@ skipping 70 matching lines @@
   // reach the end of the statement (ie, it does not exit via break,
   // continue, return, or throw).  This function is used temporarily while
   // the code generator is being transformed.
   inline void VisitAndSpill(Statement* statement);
 
   // Visit a list of statements and then spill the virtual frame if control
   // flow can reach the end of the list.
   inline void VisitStatementsAndSpill(ZoneList<Statement*>* statements);
 
   // Main code generation function
-  void GenCode(FunctionLiteral* fun, CompilationInfo* info);
+  void Generate(FunctionLiteral* fun, Mode mode, CompilationInfo* info);
 
   // The following are used by class Reference.
   void LoadReference(Reference* ref);
   void UnloadReference(Reference* ref);
 
   static MemOperand ContextOperand(Register context, int index) {
     return MemOperand(context, Context::SlotOffset(index));
   }
 
   MemOperand SlotOperand(Slot* slot, Register tmp);
@@ skipping 293 matching lines @@
   Major MajorKey() { return StringCompare; }
   int MinorKey() { return 0; }
 
   void Generate(MacroAssembler* masm);
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_ARM_CODEGEN_ARM_H_