llvm-project/libcxx/benchmarks/algorithms/lower_bound.bench.cpp
Louis Dionne 5aa03b648b [libc++][NFC] Apply clang-format on large parts of the code base
This commit does a pass of clang-format over files in libc++ that
don't require major changes to conform to our style guide, or for
which we're not overly concerned about conflicting with in-flight
patches or hindering the git blame.

This roughly covers:
- benchmarks
- range algorithms
- concepts
- type traits

I did a manual verification of all the changes, and in particular I
applied clang-format on/off annotations in a few places where the
result was less readable after than before. This was not necessary
in a lot of places, however I did find that clang-format had pretty
bad taste when it comes to formatting concepts.

Differential Revision: https://reviews.llvm.org/D153140
2023-06-19 11:19:51 -04:00

41 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
//
//===----------------------------------------------------------------------===//
#include <algorithm>
#include <numeric>
#include <random>
#include <vector>
#include "common.h"
namespace {
template <class ValueType>
struct LowerBound {
size_t Quantity;
mutable std::mt19937_64 rng{std::random_device{}()};
void run(benchmark::State& state) const {
runOpOnCopies<ValueType>(state, Quantity, Order::Ascending, BatchSize::CountBatch, [&](auto& Copy) {
auto result = std::lower_bound(Copy.begin(), Copy.end(), Copy[rng() % Copy.size()]);
benchmark::DoNotOptimize(result);
});
}
std::string name() const { return "BM_LowerBound" + ValueType::name() + "_" + std::to_string(Quantity); }
};
} // namespace
int main(int argc, char** argv) {
benchmark::Initialize(&argc, argv);
if (benchmark::ReportUnrecognizedArguments(argc, argv))
return 1;
makeCartesianProductBenchmark<LowerBound, AllValueTypes>(Quantities);
benchmark::RunSpecifiedBenchmarks();
}