Revert "[turbofan] Fix lowering of typed loads/stores."

src/factory.cc

Index: src/factory.cc
diff --git a/src/factory.cc b/src/factory.cc
index 25d8cd80e50c75f4b2eb3a4d72bf6b831058c575..cc9463f8c3e61e767f3c45daba9f104fa7bdedb3 100644
--- a/src/factory.cc
+++ b/src/factory.cc
@@ -1716,22 +1716,7 @@ Handle<JSDataView> Factory::NewJSDataView() {
 }
 
 
-namespace {
-
-ElementsKind GetExternalArrayElementsKind(ExternalArrayType type) {
-  switch (type) {
-#define TYPED_ARRAY_CASE(Type, type, TYPE, ctype, size) \
-  case kExternal##Type##Array:                          \
-    return EXTERNAL_##TYPE##_ELEMENTS;
-    TYPED_ARRAYS(TYPED_ARRAY_CASE)
-  }
-  UNREACHABLE();
-  return FIRST_EXTERNAL_ARRAY_ELEMENTS_KIND;
-#undef TYPED_ARRAY_CASE
-}
-
-
-JSFunction* GetTypedArrayFun(ExternalArrayType type, Isolate* isolate) {
+static JSFunction* GetTypedArrayFun(ExternalArrayType type, Isolate* isolate) {
   Context* native_context = isolate->context()->native_context();
   switch (type) {
 #define TYPED_ARRAY_FUN(Type, type, TYPE, ctype, size)                        \
@@ -1747,8 +1732,6 @@ JSFunction* GetTypedArrayFun(ExternalArrayType type, Isolate* isolate) {
   }
 }
 
-}  // namespace
-
 
 Handle<JSTypedArray> Factory::NewJSTypedArray(ExternalArrayType type) {
   Handle<JSFunction> typed_array_fun_handle(GetTypedArrayFun(type, isolate()));
@@ -1760,28 +1743,6 @@ Handle<JSTypedArray> Factory::NewJSTypedArray(ExternalArrayType type) {
 }
 
 
-Handle<JSTypedArray> Factory::NewJSTypedArray(ExternalArrayType type,
-                                              Handle<JSArrayBuffer> buffer,
-                                              size_t length) {
-  DCHECK(length <= static_cast<size_t>(kMaxInt));
-  Handle<JSTypedArray> array = NewJSTypedArray(type);
-  array->set_buffer(*buffer);
-  array->set_weak_next(buffer->weak_first_view());
-  buffer->set_weak_first_view(*array);
-  array->set_byte_offset(Smi::FromInt(0));
-  array->set_byte_length(buffer->byte_length());
-  Handle<Object> length_handle = NewNumberFromSize(length);
-  array->set_length(*length_handle);
-  Handle<ExternalArray> elements =
-      NewExternalArray(static_cast<int>(length), type, buffer->backing_store());
-  JSObject::SetMapAndElements(array,
-                              JSObject::GetElementsTransitionMap(
-                                  array, GetExternalArrayElementsKind(type)),
-                              elements);
-  return array;
-}
-
-
 Handle<JSProxy> Factory::NewJSProxy(Handle<Object> handler,
                                     Handle<Object> prototype) {
   // Allocate map.