text: // Copyright (c) 2016-2018 The bitphantom Core developers
  // Distributed under the MIT software license, see the accompanying
  // file COPYING or http://www.opensource.org/licenses/mit-license.php.
  
  #include <bench/bench.h>
  
  #include <uint256.h>
  #include <random.h>
  #include <consensus/merkle.h>
  
  static void MerkleRoot(benchmark::State& state)
  {
      FastRandomContext rng(true);
      std::vector<uint256> leaves;
      leaves.resize(9001);
      for (auto& item : leaves) {
          item = rng.rand256();
      }
      while (state.KeepRunning()) {
          bool mutation = false;
          uint256 hash = ComputeMerkleRoot(std::vector<uint256>(leaves), &mutation);
          leaves[mutation] = hash;
      }
  }
  
  BENCHMARK(MerkleRoot, 800);
  