1d319dfe7d
This patch implements generic associative container benchmarks for containers with unique keys. In doing so, it replaces the existing std::map benchmarks which were based on the cartesian product infrastructure and were too slow to execute. These new benchmarks aim to strike a balance between exhaustive coverage of all operations in the most interesting case, while executing fairly rapidly (~40s on my machine). This bumps the requirement for the map benchmarks from C++17 to C++20 because the common header that provides associative container benchmarks requires support for C++20 concepts.
38 lines
1.3 KiB
C++
38 lines
1.3 KiB
C++
//===----------------------------------------------------------------------===//
|
|
//
|
|
// 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
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
// UNSUPPORTED: c++03, c++11, c++14, c++17
|
|
|
|
#include <map>
|
|
#include <string>
|
|
#include <utility>
|
|
|
|
#include "associative_container_benchmarks.h"
|
|
#include "../../GenerateInput.h"
|
|
#include "benchmark/benchmark.h"
|
|
|
|
template <class K, class V>
|
|
struct support::adapt_operations<std::map<K, V>> {
|
|
using ValueType = typename std::map<K, V>::value_type;
|
|
using KeyType = typename std::map<K, V>::key_type;
|
|
static ValueType value_from_key(KeyType const& k) { return {k, Generate<V>::arbitrary()}; }
|
|
static KeyType key_from_value(ValueType const& value) { return value.first; }
|
|
|
|
using InsertionResult = std::pair<typename std::map<K, V>::iterator, bool>;
|
|
static auto get_iterator(InsertionResult const& result) { return result.first; }
|
|
};
|
|
|
|
int main(int argc, char** argv) {
|
|
support::associative_container_benchmarks<std::map<int, int>>("std::map<int, int>");
|
|
|
|
benchmark::Initialize(&argc, argv);
|
|
benchmark::RunSpecifiedBenchmarks();
|
|
benchmark::Shutdown();
|
|
return 0;
|
|
}
|