Reorder switch clauses using newly-introduced execution counters in

src/objects.cc

 // Copyright 2013 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 10265 matching lines @@
 
 
 void Code::ClearTypeFeedbackCells(Heap* heap) {
   if (kind() != FUNCTION) return;
   Object* raw_info = type_feedback_info();
   if (raw_info->IsTypeFeedbackInfo()) {
     TypeFeedbackCells* type_feedback_cells =
         TypeFeedbackInfo::cast(raw_info)->type_feedback_cells();
     for (int i = 0; i < type_feedback_cells->CellCount(); i++) {
       JSGlobalPropertyCell* cell = type_feedback_cells->Cell(i);
-      cell->set_value(TypeFeedbackCells::RawUninitializedSentinel(heap));
+      if (!cell->value()->IsSmi()) {
+        cell->set_value(TypeFeedbackCells::RawUninitializedSentinel(heap));
+      }
     }
   }
 }
 
 
 bool Code::allowed_in_shared_map_code_cache() {
   return is_keyed_load_stub() || is_keyed_store_stub() ||
       (is_compare_ic_stub() &&
        ICCompareStub::CompareState(stub_info()) == CompareIC::KNOWN_OBJECT);
 }
@@ skipping 5341 matching lines @@
   set_year(Smi::FromInt(year), SKIP_WRITE_BARRIER);
   set_month(Smi::FromInt(month), SKIP_WRITE_BARRIER);
   set_day(Smi::FromInt(day), SKIP_WRITE_BARRIER);
   set_weekday(Smi::FromInt(weekday), SKIP_WRITE_BARRIER);
   set_hour(Smi::FromInt(hour), SKIP_WRITE_BARRIER);
   set_min(Smi::FromInt(min), SKIP_WRITE_BARRIER);
   set_sec(Smi::FromInt(sec), SKIP_WRITE_BARRIER);
 }
 
 } }  // namespace v8::internal