libcxx/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 #include <list>
  10 #include <memory_resource>
  11
  12 #include "benchmark/benchmark.h"
  13
  14 static void bm_list(benchmark::State& state) {
  15   char buffer[16384];
  16   std::pmr::monotonic_buffer_resource resource(buffer, sizeof(buffer));
  17   for (auto _ : state) {
  18     std::pmr::list<int> l(&resource);
  19     for (int64_t i = 0; i != state.range(); ++i) {
  20       l.push_back(1);
  21       benchmark::DoNotOptimize(l);
  22     }
  23     resource.release();
  24   }
  25 }
  26 BENCHMARK(bm_list)->Range(1, 2048);
  27
  28 BENCHMARK_MAIN();