Eliminate extended mode, and other modes clean-up

src/hydrogen-instructions.h

 // Copyright 2012 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 5654 matching lines @@
     // Load and check the value of the context slot. Return undefined if it's
     // the hole value. This is used for non-harmony const assignments
     kCheckReturnUndefined
   };
 
   HLoadContextSlot(HValue* context, Variable* var)
       : HUnaryOperation(context), slot_index_(var->index()) {
     ASSERT(var->IsContextSlot());
     switch (var->mode()) {
       case LET:
-      case CONST_HARMONY:
+      case CONST:
         mode_ = kCheckDeoptimize;
         break;
-      case CONST:
+      case CONST_LEGACY:
         mode_ = kCheckReturnUndefined;
         break;
       default:
         mode_ = kNoCheck;
     }
     set_representation(Representation::Tagged());
     SetFlag(kUseGVN);
     SetDependsOnFlag(kContextSlots);
   }
 
@@ skipping 945 matching lines @@
   bool has_transition_ : 1;
   bool is_stable_ : 1;
   StoreFieldOrKeyedMode store_mode_ : 1;
 };
 
 
 class HStoreNamedGeneric V8_FINAL : public HTemplateInstruction<3> {
  public:
   DECLARE_INSTRUCTION_WITH_CONTEXT_FACTORY_P4(HStoreNamedGeneric, HValue*,
                                               Handle<String>, HValue*,
-                                              StrictModeFlag);
+                                              StrictMode);
   HValue* object() { return OperandAt(0); }
   HValue* value() { return OperandAt(1); }
   HValue* context() { return OperandAt(2); }
   Handle<String> name() { return name_; }
-  StrictModeFlag strict_mode_flag() { return strict_mode_flag_; }
+  StrictMode strict_mode() { return strict_mode_; }
 
   virtual void PrintDataTo(StringStream* stream) V8_OVERRIDE;
 
   virtual Representation RequiredInputRepresentation(int index) V8_OVERRIDE {
     return Representation::Tagged();
   }
 
   DECLARE_CONCRETE_INSTRUCTION(StoreNamedGeneric)
 
  private:
   HStoreNamedGeneric(HValue* context,
                      HValue* object,
                      Handle<String> name,
                      HValue* value,
-                     StrictModeFlag strict_mode_flag)
+                     StrictMode strict_mode)
       : name_(name),
-        strict_mode_flag_(strict_mode_flag) {
+        strict_mode_(strict_mode) {
     SetOperandAt(0, object);
     SetOperandAt(1, value);
     SetOperandAt(2, context);
     SetAllSideEffects();
   }
 
   Handle<String> name_;
-  StrictModeFlag strict_mode_flag_;
+  StrictMode strict_mode_;
 };
 
 
 class HStoreKeyed V8_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 161 matching lines @@
   bool is_dehoisted_ : 1;
   bool is_uninitialized_ : 1;
   StoreFieldOrKeyedMode store_mode_: 1;
   HValue* new_space_dominator_;
 };
 
 
 class HStoreKeyedGeneric V8_FINAL : public HTemplateInstruction<4> {
  public:
   DECLARE_INSTRUCTION_WITH_CONTEXT_FACTORY_P4(HStoreKeyedGeneric, HValue*,
-                                              HValue*, HValue*, StrictModeFlag);
+                                              HValue*, HValue*, StrictMode);
 
   HValue* object() { return OperandAt(0); }
   HValue* key() { return OperandAt(1); }
   HValue* value() { return OperandAt(2); }
   HValue* context() { return OperandAt(3); }
-  StrictModeFlag strict_mode_flag() { return strict_mode_flag_; }
+  StrictMode strict_mode() { return strict_mode_; }
 
   virtual Representation RequiredInputRepresentation(int index) V8_OVERRIDE {
     // tagged[tagged] = tagged
     return Representation::Tagged();
   }
 
   virtual void PrintDataTo(StringStream* stream) V8_OVERRIDE;
 
   DECLARE_CONCRETE_INSTRUCTION(StoreKeyedGeneric)
 
  private:
   HStoreKeyedGeneric(HValue* context,
                      HValue* object,
                      HValue* key,
                      HValue* value,
-                     StrictModeFlag strict_mode_flag)
-      : strict_mode_flag_(strict_mode_flag) {
+                     StrictMode strict_mode)
+      : strict_mode_(strict_mode) {
     SetOperandAt(0, object);
     SetOperandAt(1, key);
     SetOperandAt(2, value);
     SetOperandAt(3, context);
     SetAllSideEffects();
   }
 
-  StrictModeFlag strict_mode_flag_;
+  StrictMode strict_mode_;
 };
 
 
 class HTransitionElementsKind V8_FINAL : public HTemplateInstruction<2> {
  public:
   inline static HTransitionElementsKind* New(Zone* zone,
                                              HValue* context,
                                              HValue* object,
                                              Handle<Map> original_map,
                                              Handle<Map> transitioned_map) {
@@ skipping 265 matching lines @@
   virtual Representation RequiredInputRepresentation(int index) V8_OVERRIDE {
     return Representation::Tagged();
   }
 
   DECLARE_CONCRETE_INSTRUCTION(FunctionLiteral)
 
   Handle<SharedFunctionInfo> shared_info() const { return shared_info_; }
   bool pretenure() const { return pretenure_; }
   bool has_no_literals() const { return has_no_literals_; }
   bool is_generator() const { return is_generator_; }
-  LanguageMode language_mode() const { return language_mode_; }
+  StrictMode strict_mode() const { return strict_mode_; }
 
  private:
   HFunctionLiteral(HValue* context,
                    Handle<SharedFunctionInfo> shared,
                    bool pretenure)
       : HTemplateInstruction<1>(HType::JSObject()),
         shared_info_(shared),
         pretenure_(pretenure),
         has_no_literals_(shared->num_literals() == 0),
         is_generator_(shared->is_generator()),
-        language_mode_(shared->language_mode()) {
+        strict_mode_(shared->strict_mode()) {
     SetOperandAt(0, context);
     set_representation(Representation::Tagged());
     SetChangesFlag(kNewSpacePromotion);
   }
 
   virtual bool IsDeletable() const V8_OVERRIDE { return true; }
 
   Handle<SharedFunctionInfo> shared_info_;
   bool pretenure_ : 1;
   bool has_no_literals_ : 1;
   bool is_generator_ : 1;
-  LanguageMode language_mode_;
+  StrictMode strict_mode_;
 };
 
 
 class HTypeof V8_FINAL : public HTemplateInstruction<2> {
  public:
   DECLARE_INSTRUCTION_WITH_CONTEXT_FACTORY_P1(HTypeof, HValue*);
 
   HValue* context() { return OperandAt(0); }
   HValue* value() { return OperandAt(1); }
 
@@ skipping 312 matching lines @@
   virtual bool IsDeletable() const V8_OVERRIDE { return true; }
 };
 
 
 #undef DECLARE_INSTRUCTION
 #undef DECLARE_CONCRETE_INSTRUCTION
 
 } }  // namespace v8::internal
 
 #endif  // V8_HYDROGEN_INSTRUCTIONS_H_