[turbofan] Run DeadCodeElimination together with the advanced reducers.

src/compiler/graph-reducer.h

 // 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.
 
 #ifndef V8_COMPILER_GRAPH_REDUCER_H_
 #define V8_COMPILER_GRAPH_REDUCER_H_
 
 #include "src/compiler/node-marker.h"
 #include "src/zone-containers.h"
 
@@ skipping 98 matching lines @@
   }
 
  private:
   Editor* const editor_;
 };
 
 
 // Performs an iterative reduction of a node graph.
 class GraphReducer : public AdvancedReducer::Editor {
  public:
-  GraphReducer(Zone* zone, Graph* graph, Node* dead_value = nullptr,
-               Node* dead_control = nullptr);
+  GraphReducer(Zone* zone, Graph* graph, Node* dead = nullptr);
   ~GraphReducer();
 
   Graph* graph() const { return graph_; }
 
   void AddReducer(Reducer* reducer);
 
   // Reduce a single node.
   void ReduceNode(Node* const);
   // Reduce the whole graph.
   void ReduceGraph();
@@ skipping 26 matching lines @@
 
   // Node stack operations.
   void Pop();
   void Push(Node* node);
 
   // Revisit queue operations.
   bool Recurse(Node* node);
   void Revisit(Node* node) final;
 
   Graph* const graph_;
-  Node* dead_value_;
-  Node* dead_control_;
+  Node* const dead_;
   NodeMarker<State> state_;
   ZoneVector<Reducer*> reducers_;
   ZoneStack<Node*> revisit_;
   ZoneStack<NodeState> stack_;
 
   DISALLOW_COPY_AND_ASSIGN(GraphReducer);
 };
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_GRAPH_REDUCER_H_