Loop peeling for inner loops....

src/data-flow.h

Index: src/data-flow.h
===================================================================
--- src/data-flow.h	(revision 4136)
+++ src/data-flow.h	(working copy)
@@ -464,7 +464,7 @@
             FlowGraph* body);
 
 #ifdef DEBUG
-  void PrintText(ZoneList<Node*>* postorder);
+  void PrintText(FunctionLiteral* fun, ZoneList<Node*>* postorder);
 #endif
 
  private:
@@ -484,8 +484,7 @@
         global_exit_(NULL),
         preorder_(4),
         postorder_(4),
-        definitions_(4) {
-  }
+        definitions_(4) {}
 
   void Build(FunctionLiteral* lit);
 
@@ -496,6 +495,10 @@
  private:
   ExitNode* global_exit() { return global_exit_; }
 
+  // Helpers to allow tranforming the ast during flow graph construction.
+  void VisitStatements(ZoneList<Statement*>* stmts);
+  Statement* ProcessStatement(Statement* stmt);
+
   // AST node visit functions.
 #define DECLARE_VISIT(type) virtual void Visit##type(type* node);
   AST_NODE_LIST(DECLARE_VISIT)