With --noopt run unoptimized code through optimizer, more optimizations can be done later.

runtime/vm/intermediate_language.h

 // Copyright (c) 2013, 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_INTERMEDIATE_LANGUAGE_H_
 #define VM_INTERMEDIATE_LANGUAGE_H_
 
 #include "vm/allocation.h"
 #include "vm/ast.h"
 #include "vm/growable_array.h"
@@ skipping 3173 matching lines @@
   // Accessors forwarded to the AST node.
   const Function& function() const { return function_; }
   const Array& argument_names() const { return argument_names_; }
   virtual intptr_t token_pos() const { return token_pos_; }
 
   virtual intptr_t ArgumentCount() const { return arguments_->length(); }
   virtual PushArgumentInstr* PushArgumentAt(intptr_t index) const {
     return (*arguments_)[index];
   }
 
-  virtual intptr_t CallCount() const { return ic_data()->AggregateCount(); }
+  virtual intptr_t CallCount() const {
+    return ic_data() == NULL ? 0 : ic_data()->AggregateCount();
+  }
 
   virtual void PrintOperandsTo(BufferFormatter* f) const;
 
   virtual bool CanDeoptimize() const { return true; }
 
   virtual bool CanBecomeDeoptimizationTarget() const {
     // Static calls that are specialized by the optimizer (e.g. sqrt) need a
     // deoptimization descriptor before the call.
     return true;
   }
@@ skipping 4832 matching lines @@
               intptr_t fixed_parameter_count,
               intptr_t deopt_id,
               const ParsedFunction& parsed_function,
               Environment* outer)
       : values_(length),
         locations_(NULL),
         fixed_parameter_count_(fixed_parameter_count),
         deopt_id_(deopt_id),
         parsed_function_(parsed_function),
         outer_(outer) {
-    ASSERT(!parsed_function_.code().IsNull());
   }
 
 
   GrowableArray<Value*> values_;
   Location* locations_;
   const intptr_t fixed_parameter_count_;
   intptr_t deopt_id_;
   const ParsedFunction& parsed_function_;
   Environment* outer_;
 
@@ skipping 40 matching lines @@
   LocationSummary* Name::MakeLocationSummary(Zone* zone, bool opt) const {    \
     UNIMPLEMENTED();                                                          \
     return NULL;                                                              \
   }                                                                           \
   void Name::EmitNativeCode(FlowGraphCompiler* compiler) { UNIMPLEMENTED(); }
 
 
 }  // namespace dart
 
 #endif  // VM_INTERMEDIATE_LANGUAGE_H_