[builtins] Properly optimize TypedArray/DataView accessors.

src/code-stubs.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_CODE_STUBS_H_
 #define V8_CODE_STUBS_H_
 
 #include "src/allocation.h"
 #include "src/assembler.h"
 #include "src/code-stub-assembler.h"
@@ skipping 124 matching lines @@
   V(StringLessThanOrEqual)                  \
   V(StringGreaterThan)                      \
   V(StringGreaterThanOrEqual)               \
   V(ToBoolean)                              \
   V(ToInteger)                              \
   V(ToLength)                               \
   V(HasProperty)                            \
   V(LoadICTrampolineTF)                     \
   V(LoadICTF)                               \
   /* IC Handler stubs */                    \
-  V(ArrayBufferViewLoadField)               \
   V(KeyedLoadSloppyArguments)               \
   V(KeyedStoreSloppyArguments)              \
   V(LoadApiGetter)                          \
   V(LoadConstant)                           \
   V(LoadFastElement)                        \
   V(LoadField)                              \
   V(LoadIndexedInterceptor)                 \
   V(StoreField)                             \
   V(StoreGlobal)                            \
   V(StoreInterceptor)                       \
@@ skipping 1292 matching lines @@
  protected:
   Code::Kind kind() const override { return Code::LOAD_IC; }
 
  private:
   class LoadFieldByIndexBits : public BitField<int, 0, 13> {};
 
   DEFINE_HANDLER_CODE_STUB(LoadField, HandlerStub);
 };
 
 
-class ArrayBufferViewLoadFieldStub : public HandlerStub {
- public:
-  ArrayBufferViewLoadFieldStub(Isolate* isolate, FieldIndex index)
-      : HandlerStub(isolate) {
-    int property_index_key = index.GetFieldAccessStubKey();
-    set_sub_minor_key(
-        ArrayBufferViewLoadFieldByIndexBits::encode(property_index_key));
-  }
-
-  FieldIndex index() const {
-    int property_index_key =
-        ArrayBufferViewLoadFieldByIndexBits::decode(sub_minor_key());
-    return FieldIndex::FromFieldAccessStubKey(property_index_key);
-  }
-
- protected:
-  Code::Kind kind() const override { return Code::LOAD_IC; }
-
- private:
-  class ArrayBufferViewLoadFieldByIndexBits : public BitField<int, 0, 13> {};
-
-  DEFINE_HANDLER_CODE_STUB(ArrayBufferViewLoadField, HandlerStub);
-};
-
-
 class KeyedLoadSloppyArgumentsStub : public HandlerStub {
  public:
   explicit KeyedLoadSloppyArgumentsStub(Isolate* isolate)
       : HandlerStub(isolate) {}
 
  protected:
   Code::Kind kind() const override { return Code::KEYED_LOAD_IC; }
 
  private:
   DEFINE_HANDLER_CODE_STUB(KeyedLoadSloppyArguments, HandlerStub);
@@ skipping 1798 matching lines @@
 #undef DEFINE_HYDROGEN_CODE_STUB
 #undef DEFINE_CODE_STUB
 #undef DEFINE_CODE_STUB_BASE
 
 extern Representation RepresentationFromType(Type* type);
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_CODE_STUBS_H_