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adb6d28b0f
Initial draft here: https://reviews.llvm.org/D22470 ... though this is Eric Fiselier's rewrite to fit in with Google Benchmark. llvm-svn: 277373
43 lines
1.2 KiB
C++
43 lines
1.2 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include <memory>
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#include "benchmark/benchmark_api.h"
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static void BM_SharedPtrCreateDestroy(benchmark::State& st) {
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while (st.KeepRunning()) {
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auto sp = std::make_shared<int>(42);
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benchmark::DoNotOptimize(sp.get());
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}
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}
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BENCHMARK(BM_SharedPtrCreateDestroy);
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static void BM_SharedPtrIncDecRef(benchmark::State& st) {
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auto sp = std::make_shared<int>(42);
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benchmark::DoNotOptimize(sp.get());
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while (st.KeepRunning()) {
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std::shared_ptr<int> sp2(sp);
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benchmark::ClobberMemory();
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}
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}
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BENCHMARK(BM_SharedPtrIncDecRef);
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static void BM_WeakPtrIncDecRef(benchmark::State& st) {
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auto sp = std::make_shared<int>(42);
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benchmark::DoNotOptimize(sp.get());
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while (st.KeepRunning()) {
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std::weak_ptr<int> wp(sp);
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benchmark::ClobberMemory();
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}
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}
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BENCHMARK(BM_WeakPtrIncDecRef);
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BENCHMARK_MAIN()
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