[turbofan] Properly deal with empty access info list for JSStoreNamed.

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/compilation-dependencies.h"
 #include "src/compiler/access-builder.h"
 #include "src/compiler/js-graph.h"
@@ skipping 691 matching lines @@
   if (!p.feedback().IsValid()) return NoChange();
   StoreICNexus nexus(p.feedback().vector(), p.feedback().slot());
   if (nexus.ExtractMaps(&receiver_maps) == 0) return NoChange();
   DCHECK_LT(0, receiver_maps.length());
 
   // Compute property access infos for the receiver maps.
   ZoneVector<PropertyAccessInfo> access_infos(zone());
   if (!ComputePropertyAccessInfos(receiver_maps, name, kStore, &access_infos)) {
     return NoChange();
   }
-  DCHECK(!access_infos.empty());
+
+  // Nothing to do if we have no non-deprecated maps.
+  if (access_infos.empty()) return NoChange();
 
   // The final states for every polymorphic branch. We join them with
   // Merge+EffectPhi at the bottom.
   ZoneVector<Node*> effects(zone());
   ZoneVector<Node*> controls(zone());
 
   // The list of "exiting" controls, which currently go to a single deoptimize.
   // TODO(bmeurer): Consider using an IC as fallback.
   Node* const exit_effect = effect;
   ZoneVector<Node*> exit_controls(zone());
@@ skipping 256 matching lines @@
 }
 
 
 SimplifiedOperatorBuilder* JSNativeContextSpecialization::simplified() const {
   return jsgraph()->simplified();
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8