Remove strong mode support from property loads.

src/ic/handler-compiler.cc

 // Copyright 2014 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.
 
 #include "src/ic/handler-compiler.h"
 
 #include "src/field-type.h"
 #include "src/ic/call-optimization.h"
 #include "src/ic/ic-inl.h"
 #include "src/ic/ic.h"
@@ skipping 543 matching lines @@
   Register holder = Frontend(name);
   GenerateApiAccessorCall(masm(), call_optimization, handle(object->map()),
                           receiver(), scratch2(), true, value(), holder,
                           accessor_index);
   return GetCode(kind(), Code::FAST, name);
 }
 
 
 #undef __
 
-
 void ElementHandlerCompiler::CompileElementHandlers(
-    MapHandleList* receiver_maps, CodeHandleList* handlers,
-    LanguageMode language_mode) {
+    MapHandleList* receiver_maps, CodeHandleList* handlers) {
   for (int i = 0; i < receiver_maps->length(); ++i) {
     Handle<Map> receiver_map = receiver_maps->at(i);
     Handle<Code> cached_stub;
 
     if (receiver_map->IsStringMap()) {
       cached_stub = LoadIndexedStringStub(isolate()).GetCode();
     } else if (receiver_map->instance_type() < FIRST_JS_RECEIVER_TYPE) {
-      cached_stub = is_strong(language_mode)
-                        ? isolate()->builtins()->KeyedLoadIC_Slow_Strong()
-                        : isolate()->builtins()->KeyedLoadIC_Slow();
+      cached_stub = isolate()->builtins()->KeyedLoadIC_Slow();
     } else {
       bool is_js_array = receiver_map->instance_type() == JS_ARRAY_TYPE;
       ElementsKind elements_kind = receiver_map->elements_kind();
 
       // No need to check for an elements-free prototype chain here, the
       // generated stub code needs to check that dynamically anyway.
       bool convert_hole_to_undefined =
           (is_js_array && elements_kind == FAST_HOLEY_ELEMENTS &&
-           *receiver_map ==
-               isolate()->get_initial_js_array_map(elements_kind)) &&
-          !is_strong(language_mode);
+           *receiver_map == isolate()->get_initial_js_array_map(elements_kind));
 
       if (receiver_map->has_indexed_interceptor()) {
         cached_stub = LoadIndexedInterceptorStub(isolate()).GetCode();
       } else if (IsSloppyArgumentsElements(elements_kind)) {
         cached_stub = KeyedLoadSloppyArgumentsStub(isolate()).GetCode();
       } else if (IsFastElementsKind(elements_kind) ||
                  IsFixedTypedArrayElementsKind(elements_kind)) {
         cached_stub = LoadFastElementStub(isolate(), is_js_array, elements_kind,
                                           convert_hole_to_undefined).GetCode();
       } else {
         DCHECK(elements_kind == DICTIONARY_ELEMENTS);
-        LoadICState state =
-            LoadICState(is_strong(language_mode) ? LoadICState::kStrongModeState
-                                                 : kNoExtraICState);
+        LoadICState state = LoadICState(kNoExtraICState);
         cached_stub = LoadDictionaryElementStub(isolate(), state).GetCode();
       }
     }
 
     handlers->Add(cached_stub);
   }
 }
 }  // namespace internal
 }  // namespace v8