Move quadratic behavior of Context's optimized function list verification behind --enable-slow-asse…

src/contexts.cc

 // Copyright 2011 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 225 matching lines @@
   if (FLAG_trace_contexts) {
     PrintF("=> no property/slot found\n");
   }
   return Handle<Object>::null();
 }
 
 
 void Context::AddOptimizedFunction(JSFunction* function) {
   ASSERT(IsGlobalContext());
 #ifdef DEBUG
-  Object* element = get(OPTIMIZED_FUNCTIONS_LIST);
-  while (!element->IsUndefined()) {
-    CHECK(element != function);
-    element = JSFunction::cast(element)->next_function_link();
+  if (FLAG_enable_slow_asserts) {
+    Object* element = get(OPTIMIZED_FUNCTIONS_LIST);
+    while (!element->IsUndefined()) {
+      CHECK(element != function);
+      element = JSFunction::cast(element)->next_function_link();
+    }
   }
 
   CHECK(function->next_function_link()->IsUndefined());
 
   // Check that the context belongs to the weak global contexts list.
   bool found = false;
   Object* context = GetHeap()->global_contexts_list();
   while (!context->IsUndefined()) {
     if (context == this) {
       found = true;
@@ skipping 55 matching lines @@
   // During bootstrapping we allow all objects to pass as global
   // objects. This is necessary to fix circular dependencies.
   Isolate* isolate = Isolate::Current();
   return isolate->heap()->gc_state() != Heap::NOT_IN_GC ||
       isolate->bootstrapper()->IsActive() ||
       object->IsGlobalObject();
 }
 #endif
 
 } }  // namespace v8::internal