text: /*
   * Copyright (C) 2014 The Android Open Source Project
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  #ifndef ART_COMPILER_OPTIMIZING_CONSTANT_FOLDING_H_
  #define ART_COMPILER_OPTIMIZING_CONSTANT_FOLDING_H_
  
  #include "nodes.h"
  #include "optimization.h"
  
  namespace art {
  
  /**
   * Optimization pass performing a simple constant-expression
   * evaluation on the SSA form.
   *
   * This class is named art::HConstantFolding to avoid name
   * clashes with the art::ConstantPropagation class defined in
   * compiler/dex/post_opt_passes.h.
   */
  class HConstantFolding : public HOptimization {
   public:
    explicit HConstantFolding(HGraph* graph, const char* name = kConstantFoldingPassName)
        : HOptimization(graph, true, name) {}
  
    void Run() OVERRIDE;
  
    static constexpr const char* kConstantFoldingPassName = "constant_folding";
  
   private:
    DISALLOW_COPY_AND_ASSIGN(HConstantFolding);
  };
  
  }  // namespace art
  
  #endif  // ART_COMPILER_OPTIMIZING_CONSTANT_FOLDING_H_
  