emit premonomorphic ics for loads/stores in optimized code

src/hydrogen-instructions.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_HYDROGEN_INSTRUCTIONS_H_
 #define V8_HYDROGEN_INSTRUCTIONS_H_
 
 #include <cstring>
 #include <iosfwd>
 
@@ skipping 6550 matching lines @@
 
   bool IsDeletable() const OVERRIDE { return true; }
 
   HObjectAccess access_;
   const UniqueSet<Map>* maps_;
 };
 
 
 class HLoadNamedGeneric FINAL : public HTemplateInstruction<2> {
  public:
-  DECLARE_INSTRUCTION_WITH_CONTEXT_FACTORY_P2(HLoadNamedGeneric, HValue*,
-                                              Handle<Object>);
+  DECLARE_INSTRUCTION_WITH_CONTEXT_FACTORY_P3(HLoadNamedGeneric, HValue*,
+                                              Handle<Object>, bool);
 
   HValue* context() const { return OperandAt(0); }
   HValue* object() const { return OperandAt(1); }
   Handle<Object> name() const { return name_; }
 
+  bool emit_megamorphic() const { return emit_megamorphic_; }
   FeedbackVectorICSlot slot() const { return slot_; }
   Handle<TypeFeedbackVector> feedback_vector() const {
     return feedback_vector_;
   }
   bool HasVectorAndSlot() const { return FLAG_vector_ics; }
   void SetVectorAndSlot(Handle<TypeFeedbackVector> vector,
                         FeedbackVectorICSlot slot) {
     DCHECK(FLAG_vector_ics);
     feedback_vector_ = vector;
     slot_ = slot;
   }
 
   Representation RequiredInputRepresentation(int index) OVERRIDE {
     return Representation::Tagged();
   }
 
   std::ostream& PrintDataTo(std::ostream& os) const OVERRIDE;  // NOLINT
 
   DECLARE_CONCRETE_INSTRUCTION(LoadNamedGeneric)
 
  private:
-  HLoadNamedGeneric(HValue* context, HValue* object, Handle<Object> name)
-      : name_(name), slot_(FeedbackVectorICSlot::Invalid()) {
+  HLoadNamedGeneric(HValue* context, HValue* object, Handle<Object> name,
+                    bool emit_megamorphic)
+      : name_(name),
+        slot_(FeedbackVectorICSlot::Invalid()),
+        emit_megamorphic_(emit_megamorphic) {
     SetOperandAt(0, context);
     SetOperandAt(1, object);
     set_representation(Representation::Tagged());
     SetAllSideEffects();
   }
 
   Handle<Object> name_;
   Handle<TypeFeedbackVector> feedback_vector_;
   FeedbackVectorICSlot slot_;
+  bool emit_megamorphic_;
 };
 
 
 class HLoadFunctionPrototype FINAL : public HUnaryOperation {
  public:
   DECLARE_INSTRUCTION_FACTORY_P1(HLoadFunctionPrototype, HValue*);
 
   HValue* function() { return OperandAt(0); }
 
   Representation RequiredInputRepresentation(int index) OVERRIDE {
@@ skipping 433 matching lines @@
   class ReceiverIsCellField : public BitField<bool, 2, 1> {};
 
   HObjectAccess access_;
   HValue* dominator_;
   uint32_t bit_field_;
 };
 
 
 class HStoreNamedGeneric FINAL : public HTemplateInstruction<3> {
  public:
-  DECLARE_INSTRUCTION_WITH_CONTEXT_FACTORY_P4(HStoreNamedGeneric, HValue*,
+  DECLARE_INSTRUCTION_WITH_CONTEXT_FACTORY_P5(HStoreNamedGeneric, HValue*,
                                               Handle<String>, HValue*,
-                                              LanguageMode);
+                                              LanguageMode, bool);
   HValue* object() const { return OperandAt(0); }
   HValue* value() const { return OperandAt(1); }
   HValue* context() const { return OperandAt(2); }
   Handle<String> name() const { return name_; }
   LanguageMode language_mode() const { return language_mode_; }
+  bool emit_megamorphic() const { return emit_megamorphic_; }
 
   std::ostream& PrintDataTo(std::ostream& os) const OVERRIDE;  // NOLINT
 
   Representation RequiredInputRepresentation(int index) OVERRIDE {
     return Representation::Tagged();
   }
 
   DECLARE_CONCRETE_INSTRUCTION(StoreNamedGeneric)
 
  private:
   HStoreNamedGeneric(HValue* context, HValue* object, Handle<String> name,
-                     HValue* value, LanguageMode language_mode)
-      : name_(name), language_mode_(language_mode) {
+                     HValue* value, LanguageMode language_mode,
+                     bool emit_megamorphic)
+      : name_(name),
+        language_mode_(language_mode),
+        emit_megamorphic_(emit_megamorphic) {
     SetOperandAt(0, object);
     SetOperandAt(1, value);
     SetOperandAt(2, context);
     SetAllSideEffects();
   }
 
   Handle<String> name_;
   LanguageMode language_mode_;
+  bool emit_megamorphic_;
 };
 
 
 class HStoreKeyed FINAL
     : public HTemplateInstruction<3>, public ArrayInstructionInterface {
  public:
   DECLARE_INSTRUCTION_FACTORY_P4(HStoreKeyed, HValue*, HValue*, HValue*,
                                  ElementsKind);
   DECLARE_INSTRUCTION_FACTORY_P5(HStoreKeyed, HValue*, HValue*, HValue*,
                                  ElementsKind, StoreFieldOrKeyedMode);
@@ skipping 898 matching lines @@
 };
 
 
 
 #undef DECLARE_INSTRUCTION
 #undef DECLARE_CONCRETE_INSTRUCTION
 
 } }  // namespace v8::internal
 
 #endif  // V8_HYDROGEN_INSTRUCTIONS_H_