libcxx/test/benchmarks/monotonic_buffer.bench.cpp

   1 //===----------------------------------------------------------------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 // UNSUPPORTED: c++03, c++11, c++14
  10
  11 #include <list>
  12 #include <memory_resource>
  13
  14 #include "benchmark/benchmark.h"
  15
  16 static void bm_list(benchmark::State& state) {
  17   char buffer[16384];
  18   std::pmr::monotonic_buffer_resource resource(buffer, sizeof(buffer));
  19   for (auto _ : state) {
  20     std::pmr::list<int> l(&resource);
  21     for (int64_t i = 0; i != state.range(); ++i) {
  22       l.push_back(1);
  23       benchmark::DoNotOptimize(l);
  24     }
  25     resource.release();
  26   }
  27 }
  28 BENCHMARK(bm_list)->Range(1, 2048);
  29
  30 BENCHMARK_MAIN();