[Turbofan] Soft deopt if we only have deprecated maps on optimization.

src/compiler/js-native-context-specialization.cc

 // Copyright 2015 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-native-context-specialization.h"
 
 #include "src/accessors.h"
 #include "src/code-factory.h"
 #include "src/compilation-dependencies.h"
 #include "src/compiler/access-builder.h"
@@ skipping 80 matching lines @@
   // Compute property access infos for the receiver maps.
   AccessInfoFactory access_info_factory(dependencies(), native_context,
                                         graph()->zone());
   ZoneVector<PropertyAccessInfo> access_infos(zone());
   if (!access_info_factory.ComputePropertyAccessInfos(
           receiver_maps, name, access_mode, &access_infos)) {
     return NoChange();
   }
 
   // Nothing to do if we have no non-deprecated maps.
-  if (access_infos.empty()) return NoChange();
+  if (access_infos.empty()) {
+    return ReduceSoftDeoptimize(
+        node, DeoptimizeReason::kInsufficientTypeFeedbackForGenericNamedAccess);
+  }
 
   // The final states for every polymorphic branch. We join them with
   // Merge++Phi+EffectPhi at the bottom.
   ZoneVector<Node*> values(zone());
   ZoneVector<Node*> effects(zone());
   ZoneVector<Node*> controls(zone());
 
   // Ensure that {index} matches the specified {name} (if {index} is given).
   if (index != nullptr) {
     Node* check = graph()->NewNode(simplified()->ReferenceEqual(Type::Name()),
@@ skipping 398 matching lines @@
   // Compute element access infos for the receiver maps.
   AccessInfoFactory access_info_factory(dependencies(), native_context,
                                         graph()->zone());
   ZoneVector<ElementAccessInfo> access_infos(zone());
   if (!access_info_factory.ComputeElementAccessInfos(receiver_maps, access_mode,
                                                      &access_infos)) {
     return NoChange();
   }
 
   // Nothing to do if we have no non-deprecated maps.
-  if (access_infos.empty()) return NoChange();
+  if (access_infos.empty()) {
+    return ReduceSoftDeoptimize(
+        node, DeoptimizeReason::kInsufficientTypeFeedbackForGenericKeyedAccess);
+  }
 
   // The final states for every polymorphic branch. We join them with
   // Merge+Phi+EffectPhi at the bottom.
   ZoneVector<Node*> values(zone());
   ZoneVector<Node*> effects(zone());
   ZoneVector<Node*> controls(zone());
 
   // Ensure that {receiver} is a heap object.
   receiver = effect = graph()->NewNode(simplified()->CheckTaggedPointer(),
                                        receiver, effect, control);
@@ skipping 508 matching lines @@
 }
 
 
 SimplifiedOperatorBuilder* JSNativeContextSpecialization::simplified() const {
   return jsgraph()->simplified();
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8