Distinguish keyed loads with a symbol key from fast elements loads.

src/ast.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 569 matching lines @@
 bool CountOperation::IsInlineable() const {
   return expression()->IsInlineable();
 }
 
 
 // ----------------------------------------------------------------------------
 // Recording of type feedback
 
 void Property::RecordTypeFeedback(TypeFeedbackOracle* oracle) {
   // Record type feedback from the oracle in the AST.
-  is_monomorphic_ = oracle->LoadIsMonomorphic(this);
+  is_monomorphic_ = oracle->LoadIsMonomorphicNormal(this);
   if (key()->IsPropertyName()) {
     if (oracle->LoadIsBuiltin(this, Builtins::kLoadIC_ArrayLength)) {
       is_array_length_ = true;
     } else if (oracle->LoadIsBuiltin(this, Builtins::kLoadIC_StringLength)) {
       is_string_length_ = true;
     } else if (oracle->LoadIsBuiltin(this,
                                      Builtins::kLoadIC_FunctionPrototype)) {
       is_function_prototype_ = true;
     } else {
       Literal* lit_key = key()->AsLiteral();
       ASSERT(lit_key != NULL && lit_key->handle()->IsString());
       Handle<String> name = Handle<String>::cast(lit_key->handle());
       ZoneMapList* types = oracle->LoadReceiverTypes(this, name);
       receiver_types_ = types;
     }
   } else if (oracle->LoadIsBuiltin(this, Builtins::kKeyedLoadIC_String)) {
     is_string_access_ = true;
   } else if (is_monomorphic_) {
     monomorphic_receiver_type_ = oracle->LoadMonomorphicReceiverType(this);
   }
 }
 
 
 void Assignment::RecordTypeFeedback(TypeFeedbackOracle* oracle) {
   Property* prop = target()->AsProperty();
   ASSERT(prop != NULL);
-  is_monomorphic_ = oracle->StoreIsMonomorphic(this);
+  is_monomorphic_ = oracle->StoreIsMonomorphicNormal(this);
   if (prop->key()->IsPropertyName()) {
     Literal* lit_key = prop->key()->AsLiteral();
     ASSERT(lit_key != NULL && lit_key->handle()->IsString());
     Handle<String> name = Handle<String>::cast(lit_key->handle());
     ZoneMapList* types = oracle->StoreReceiverTypes(this, name);
     receiver_types_ = types;
   } else if (is_monomorphic_) {
     // Record receiver type for monomorphic keyed loads.
     monomorphic_receiver_type_ = oracle->StoreMonomorphicReceiverType(this);
   }
 }
 
 
 void CountOperation::RecordTypeFeedback(TypeFeedbackOracle* oracle) {
-  is_monomorphic_ = oracle->StoreIsMonomorphic(this);
+  is_monomorphic_ = oracle->StoreIsMonomorphicNormal(this);
   if (is_monomorphic_) {
     // Record receiver type for monomorphic keyed loads.
     monomorphic_receiver_type_ = oracle->StoreMonomorphicReceiverType(this);
   }
 }
 
 
 void CaseClause::RecordTypeFeedback(TypeFeedbackOracle* oracle) {
   TypeInfo info = oracle->SwitchType(this);
   if (info.IsSmi()) {
@@ skipping 490 matching lines @@
                        int pos)
     : label_(label),
       statements_(statements),
       position_(pos),
       compare_type_(NONE),
       compare_id_(AstNode::GetNextId()),
       entry_id_(AstNode::GetNextId()) {
 }
 
 } }  // namespace v8::internal