[wasm] Avoid js-typed-lowering optimization for wasm Memory objects

src/compiler/js-typed-lowering.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/compiler/js-typed-lowering.h"
 
 #include "src/ast/modules.h"
 #include "src/builtins/builtins-utils.h"
 #include "src/code-factory.h"
 #include "src/compilation-dependencies.h"
@@ skipping 1187 matching lines @@
 }
 
 Reduction JSTypedLowering::ReduceJSLoadProperty(Node* node) {
   Node* key = NodeProperties::GetValueInput(node, 1);
   Node* base = NodeProperties::GetValueInput(node, 0);
   Type* key_type = NodeProperties::GetType(key);
   HeapObjectMatcher mbase(base);
   if (mbase.HasValue() && mbase.Value()->IsJSTypedArray()) {
     Handle<JSTypedArray> const array =
         Handle<JSTypedArray>::cast(mbase.Value());
-    if (!array->GetBuffer()->was_neutered()) {
+    if (!array->GetBuffer()->was_neutered() &&
+        !array->GetBuffer()->is_wasm_buffer()) {
       array->GetBuffer()->set_is_neuterable(false);
       BufferAccess const access(array->type());
       size_t const k =
           ElementSizeLog2Of(access.machine_type().representation());
       double const byte_length = array->byte_length()->Number();
       CHECK_LT(k, arraysize(shifted_int32_ranges_));
       if (key_type->Is(shifted_int32_ranges_[k]) && byte_length <= kMaxInt) {
         // JSLoadProperty(typed-array, int32)
         Handle<FixedTypedArrayBase> elements =
             Handle<FixedTypedArrayBase>::cast(handle(array->elements()));
@@ skipping 31 matching lines @@
   Node* value = NodeProperties::GetValueInput(node, 2);
   Type* key_type = NodeProperties::GetType(key);
   Type* value_type = NodeProperties::GetType(value);
 
   if (!value_type->Is(Type::PlainPrimitive())) return NoChange();
 
   HeapObjectMatcher mbase(base);
   if (mbase.HasValue() && mbase.Value()->IsJSTypedArray()) {
     Handle<JSTypedArray> const array =
         Handle<JSTypedArray>::cast(mbase.Value());
-    if (!array->GetBuffer()->was_neutered()) {
+    if (!array->GetBuffer()->was_neutered() &&
+        !array->GetBuffer()->is_wasm_buffer()) {
       array->GetBuffer()->set_is_neuterable(false);
       BufferAccess const access(array->type());
       size_t const k =
           ElementSizeLog2Of(access.machine_type().representation());
       double const byte_length = array->byte_length()->Number();
       CHECK_LT(k, arraysize(shifted_int32_ranges_));
       if (access.external_array_type() != kExternalUint8ClampedArray &&
           key_type->Is(shifted_int32_ranges_[k]) && byte_length <= kMaxInt) {
         // JSLoadProperty(typed-array, int32)
         Handle<FixedTypedArrayBase> elements =
@@ skipping 970 matching lines @@
 }
 
 
 CompilationDependencies* JSTypedLowering::dependencies() const {
   return dependencies_;
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8