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[libc++] Add a benchmark for std::num_get

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This commit is contained in:
Nikolas Klauser 2024-12-22 20:43:46 +01:00
parent eaf67e062c
commit c5492e3c65
1 changed files with 44 additions and 0 deletions
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44
libcxx/test/benchmarks/locale/num_get.bench.cpp Normal file
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//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include <ios>
#include <locale>
#include <benchmark/benchmark.h>
struct num_get : std::num_get<char, std::string::iterator> {};
template <class T>
void BM_num_get(benchmark::State& state) {
auto val = std::string("123");
std::ios ios(nullptr);
num_get np;
for (auto _ : state) {
benchmark::DoNotOptimize(val);
T out;
std::ios_base::iostate err = ios.goodbit;
benchmark::DoNotOptimize(np.get(val.begin(), val.end(), ios, err, out));
benchmark::DoNotOptimize(out);
}
}
BENCHMARK(BM_num_get<bool>);
BENCHMARK(BM_num_get<long>);
BENCHMARK(BM_num_get<long long>);
BENCHMARK(BM_num_get<unsigned short>);
BENCHMARK(BM_num_get<unsigned int>);
BENCHMARK(BM_num_get<unsigned long>);
BENCHMARK(BM_num_get<unsigned long long>);
BENCHMARK(BM_num_get<float>);
BENCHMARK(BM_num_get<double>);
BENCHMARK(BM_num_get<long double>);
BENCHMARK(BM_num_get<void*>);
BENCHMARK_MAIN();