b2d2494731
This patch fixes warnings and errors that come up when running the benchmarks as part of the test suite. It also adds the necessary Lit annotations to make it pass in various configurations and increases the portability of the benchmarks.
47 lines
1.9 KiB
C++
Executable File
47 lines
1.9 KiB
C++
Executable File
//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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// UNSUPPORTED: c++03, c++11, c++14, c++17
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#include <algorithm>
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#include <benchmark/benchmark.h>
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#include <vector>
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// Benchmarks the worst case: check the whole range just to find out that they compare equal
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template <class T>
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static void bm_lexicographical_compare(benchmark::State& state) {
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std::vector<T> vec1(state.range(), '1');
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std::vector<T> vec2(state.range(), '1');
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for (auto _ : state) {
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benchmark::DoNotOptimize(vec1);
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benchmark::DoNotOptimize(vec2);
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benchmark::DoNotOptimize(std::lexicographical_compare(vec1.begin(), vec1.end(), vec2.begin(), vec2.end()));
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}
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}
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BENCHMARK(bm_lexicographical_compare<unsigned char>)->DenseRange(1, 8)->Range(16, 1 << 20);
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BENCHMARK(bm_lexicographical_compare<signed char>)->DenseRange(1, 8)->Range(16, 1 << 20);
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BENCHMARK(bm_lexicographical_compare<int>)->DenseRange(1, 8)->Range(16, 1 << 20);
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template <class T>
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static void bm_ranges_lexicographical_compare(benchmark::State& state) {
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std::vector<T> vec1(state.range(), '1');
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std::vector<T> vec2(state.range(), '1');
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for (auto _ : state) {
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benchmark::DoNotOptimize(vec1);
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benchmark::DoNotOptimize(vec2);
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benchmark::DoNotOptimize(std::ranges::lexicographical_compare(vec1.begin(), vec1.end(), vec2.begin(), vec2.end()));
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}
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}
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BENCHMARK(bm_ranges_lexicographical_compare<unsigned char>)->DenseRange(1, 8)->Range(16, 1 << 20);
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BENCHMARK(bm_ranges_lexicographical_compare<signed char>)->DenseRange(1, 8)->Range(16, 1 << 20);
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BENCHMARK(bm_ranges_lexicographical_compare<int>)->DenseRange(1, 8)->Range(16, 1 << 20);
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BENCHMARK_MAIN();
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