Kill obsolete HLoadExternalArrayPointer instruction.

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 115 matching lines @@
   V(InstanceOf)                                \
   V(InstanceOfKnownGlobal)                     \
   V(InvokeFunction)                            \
   V(IsConstructCallAndBranch)                  \
   V(IsObjectAndBranch)                         \
   V(IsStringAndBranch)                         \
   V(IsSmiAndBranch)                            \
   V(IsUndetectableAndBranch)                   \
   V(LeaveInlined)                              \
   V(LoadContextSlot)                           \
-  V(LoadExternalArrayPointer)                  \
   V(LoadFieldByIndex)                          \
   V(LoadFunctionPrototype)                     \
   V(LoadGlobalCell)                            \
   V(LoadGlobalGeneric)                         \
   V(LoadKeyed)                                 \
   V(LoadKeyedGeneric)                          \
   V(LoadNamedField)                            \
   V(LoadNamedGeneric)                          \
   V(LoadRoot)                                  \
   V(MapEnumLength)                             \
@@ skipping 2582 matching lines @@
     // corresponding HStoreRoot instruction.
     SetGVNFlag(kDependsOnCalls);
   }
 
   virtual bool IsDeletable() const V8_OVERRIDE { return true; }
 
   const Heap::RootListIndex index_;
 };
 
 
-class HLoadExternalArrayPointer V8_FINAL : public HUnaryOperation {
- public:
-  DECLARE_INSTRUCTION_FACTORY_P1(HLoadExternalArrayPointer, HValue*);
-
-  virtual Representation RequiredInputRepresentation(int index) V8_OVERRIDE {
-    return Representation::Tagged();
-  }
-
-  virtual HType CalculateInferredType() V8_OVERRIDE {
-    return HType::None();
-  }
-
-  DECLARE_CONCRETE_INSTRUCTION(LoadExternalArrayPointer)
-
- protected:
-  virtual bool DataEquals(HValue* other) V8_OVERRIDE { return true; }
-
- private:
-  explicit HLoadExternalArrayPointer(HValue* value)
-      : HUnaryOperation(value) {
-    set_representation(Representation::External());
-    // The result of this instruction is idempotent as long as its inputs don't
-    // change.  The external array of a specialized array elements object cannot
-    // change once set, so it's no necessary to introduce any additional
-    // dependencies on top of the inputs.
-    SetFlag(kUseGVN);
-  }
-
-  virtual bool IsDeletable() const V8_OVERRIDE { return true; }
-};
-
-
 class HCheckMaps V8_FINAL : public HTemplateInstruction<2> {
  public:
   static HCheckMaps* New(Zone* zone, HValue* context, HValue* value,
                          Handle<Map> map, CompilationInfo* info,
                          HValue *typecheck = NULL);
   static HCheckMaps* New(Zone* zone, HValue* context,
                          HValue* value, SmallMapList* maps,
                          HValue *typecheck = NULL) {
     HCheckMaps* check_map = new(zone) HCheckMaps(value, zone, typecheck);
     for (int i = 0; i < maps->length(); i++) {
@@ skipping 4761 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_