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      1 // Copyright 2014 the V8 project authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #ifndef V8_COMPILER_VALUE_NUMBERING_REDUCER_H_
      6 #define V8_COMPILER_VALUE_NUMBERING_REDUCER_H_
      7 
      8 #include "src/compiler/graph-reducer.h"
      9 
     10 namespace v8 {
     11 namespace internal {
     12 namespace compiler {
     13 
     14 class ValueNumberingReducer FINAL : public Reducer {
     15  public:
     16   explicit ValueNumberingReducer(Zone* zone);
     17   ~ValueNumberingReducer();
     18 
     19   virtual Reduction Reduce(Node* node) OVERRIDE;
     20 
     21  private:
     22   Zone* zone() const { return zone_; }
     23 
     24   // TODO(turbofan): We currently use separate chaining with linked lists here,
     25   // we may want to replace that with a more sophisticated data structure at
     26   // some point in the future.
     27   class Entry;
     28   Entry* buckets_[117u];
     29   Zone* zone_;
     30 };
     31 
     32 }  // namespace compiler
     33 }  // namespace internal
     34 }  // namespace v8
     35 
     36 #endif  // V8_COMPILER_VALUE_NUMBERING_REDUCER_H_
     37