| 1 | //===----------------------------------------------------------------------===// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | |
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| 9 | // UNSUPPORTED: c++03, c++11, c++14, c++17 |
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| 10 | |
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| 11 | #include <algorithm> |
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| 12 | #include <numeric> |
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| 13 | #include <random> |
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| 14 | #include <vector> |
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| 15 | |
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| 16 | #include "common.h" |
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| 17 | |
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| 18 | namespace { |
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| 19 | template <class ValueType> |
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| 20 | struct LowerBound { |
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| 21 | size_t Quantity; |
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| 22 | |
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| 23 | mutable std::mt19937_64 rng{std::random_device{}()}; |
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| 24 | |
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| 25 | void run(benchmark::State& state) const { |
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| 26 | runOpOnCopies<ValueType>(state, Quantity, Order::Ascending, BatchSize::CountBatch, [&](auto& Copy) { |
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| 27 | auto result = std::lower_bound(Copy.begin(), Copy.end(), Copy[rng() % Copy.size()]); |
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| 28 | benchmark::DoNotOptimize(result); |
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| 29 | }); |
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| 30 | } |
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| 31 | |
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| 32 | std::string name() const { return "BM_LowerBound" + ValueType::name() + "_" + std::to_string(val: Quantity); } |
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| 33 | }; |
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| 34 | } // namespace |
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| 35 | |
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| 36 | int main(int argc, char** argv) { |
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| 37 | benchmark::Initialize(argc: &argc, argv); |
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| 38 | if (benchmark::ReportUnrecognizedArguments(argc, argv)) |
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| 39 | return 1; |
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| 40 | makeCartesianProductBenchmark<LowerBound, AllValueTypes>(A: Quantities); |
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| 41 | benchmark::RunSpecifiedBenchmarks(); |
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| 42 | } |
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| 43 | |
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