| 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 <memory> |
| 10 | |
| 11 | #include "benchmark/benchmark.h" |
| 12 | |
| 13 | static void BM_SharedPtrCreateDestroy(benchmark::State& st) { |
| 14 | while (st.KeepRunning()) { |
| 15 | auto sp = std::make_shared<int>(args: 42); |
| 16 | benchmark::DoNotOptimize(value: sp.get()); |
| 17 | } |
| 18 | } |
| 19 | BENCHMARK(BM_SharedPtrCreateDestroy); |
| 20 | |
| 21 | static void BM_SharedPtrIncDecRef(benchmark::State& st) { |
| 22 | auto sp = std::make_shared<int>(args: 42); |
| 23 | benchmark::DoNotOptimize(value: sp.get()); |
| 24 | while (st.KeepRunning()) { |
| 25 | std::shared_ptr<int> sp2(sp); |
| 26 | benchmark::ClobberMemory(); |
| 27 | } |
| 28 | } |
| 29 | BENCHMARK(BM_SharedPtrIncDecRef); |
| 30 | |
| 31 | static void BM_WeakPtrIncDecRef(benchmark::State& st) { |
| 32 | auto sp = std::make_shared<int>(args: 42); |
| 33 | benchmark::DoNotOptimize(value: sp.get()); |
| 34 | while (st.KeepRunning()) { |
| 35 | std::weak_ptr<int> wp(sp); |
| 36 | benchmark::ClobberMemory(); |
| 37 | } |
| 38 | } |
| 39 | BENCHMARK(BM_WeakPtrIncDecRef); |
| 40 | |
| 41 | BENCHMARK_MAIN(); |
| 42 |