1  // Copyright (c) 2015-2022 The Bitcoin Core developers
 2  // Distributed under the MIT software license, see the accompanying
 3  // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 4  
 5  #include <bench/bench.h>
 6  
 7  // Extremely fast-running benchmark:
 8  #include <math.h>
 9  
10  volatile double sum = 0.0; // volatile, global so not optimized away
11  
12  static void Trig(benchmark::Bench& bench)
13  {
14      double d = 0.01;
15      bench.run([&] {
16          sum = sum + sin(d);
17          d += 0.000001;
18      });
19  }
20  
21  BENCHMARK(Trig, benchmark::PriorityLevel::HIGH);