First step toward an optimizing compiler:

runtime/vm/il_printer.h

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #ifndef VM_IL_PRINTER_H_
 #define VM_IL_PRINTER_H_
 
 #include "vm/intermediate_language.h"
 
 namespace dart {
@@ skipping 22 matching lines @@
   FlowGraphPrinter(const Function& function,
                    const GrowableArray<BlockEntryInstr*>& block_order)
       : function_(function), block_order_(block_order) { }
 
   virtual ~FlowGraphPrinter() {}
 
   // Print the instructions in a block terminated by newlines.  Add "goto N"
   // to the end of the block if it ends with an unconditional jump to
   // another block and that block is not next in reverse postorder.
   void PrintBlocks();
-  void Print(Instruction* instr);
+  static void PrintInstruction(Instruction* instr);
+  static void PrintComputation(Computation* comp);
 
  private:
   const Function& function_;
   const GrowableArray<BlockEntryInstr*>& block_order_;
 };
 
 }  // namespace dart
 
 #endif  // VM_IL_PRINTER_H_