Generate smaller unoptimized code for certain expressions.

runtime/vm/il_printer.cc

 // 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.
 
 #include "vm/il_printer.h"
 
 #include "vm/intermediate_language.h"
 #include "vm/os.h"
 #include "vm/parser.h"
 
@@ skipping 294 matching lines @@
 
 const char* RangeBoundary::ToCString() const {
   char buffer[256];
   BufferFormatter f(buffer, sizeof(buffer));
   PrintTo(&f);
   return Isolate::Current()->current_zone()->MakeCopyOfString(buffer);
 }
 
 
 void DropTempsInstr::PrintOperandsTo(BufferFormatter* f) const {
-  f->Print("%" Pd ", ", num_temps());
-  value()->PrintTo(f);
+  f->Print("%" Pd "", num_temps());
+  if (value() != NULL) {
+    f->Print(", ");
+    value()->PrintTo(f);
+  }
 }
 
 
 void AssertAssignableInstr::PrintOperandsTo(BufferFormatter* f) const {
   value()->PrintTo(f);
   f->Print(", %s, '%s'",
            dst_type().ToCString(),
            dst_name().ToCString());
   f->Print(" instantiator(");
   instantiator()->PrintTo(f);
@@ skipping 700 matching lines @@
       f->Print(" [");
       locations_[i].PrintTo(f);
       f->Print("]");
     }
   }
   f->Print(" }");
   if (outer_ != NULL) outer_->PrintTo(f);
 }
 
 }  // namespace dart