140 lines · cpp
1//===----------------------------------------------------------------------===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9// UNSUPPORTED: c++03, c++11, c++14, c++1710 11#include <utility>12#include "../CartesianBenchmarks.h"13#include "benchmark/benchmark.h"14 15namespace {16 17enum ValueType : size_t {18 SChar,19 UChar,20 Short,21 UShort,22 Int,23 UInt,24 Long,25 ULong,26 LongLong,27 ULongLong,28#ifndef TEST_HAS_NO_INT12829 Int128,30 UInt128,31#endif32};33 34struct AllValueTypes : EnumValuesAsTuple<AllValueTypes, ValueType, 6> {35 static constexpr const char* Names[] = {36 "schar",37 "uchar",38 "short",39 "ushort",40 "int",41 "uint",42 "long",43 "ulong",44 "longlong",45 "ulonglong",46#ifndef TEST_HAS_NO_INT12847 "int128",48 "uint128"49#endif50 };51};52 53using TestType =54 std::tuple< signed char,55 unsigned char,56 short,57 unsigned short,58 int,59 unsigned int,60 long,61 unsigned long,62 long long,63 unsigned long long64#ifndef TEST_HAS_NO_INT12865 ,66 __int128_t,67 __uint128_t68#endif69 >;70 71template <typename TType, typename UType>72struct CmpEqual {73 static void run(benchmark::State& state) {74 using T = std::tuple_element_t<TType::value, TestType>;75 using U = std::tuple_element_t<UType::value, TestType>;76 77 T x1 = T{127}, x2 = T{111};78 U y1 = U{123}, y2 = U{1};79 for (auto _ : state) {80 benchmark::DoNotOptimize(x1);81 benchmark::DoNotOptimize(x2);82 benchmark::DoNotOptimize(y1);83 benchmark::DoNotOptimize(y2);84 benchmark::DoNotOptimize(std::cmp_equal(x1, y1));85 benchmark::DoNotOptimize(std::cmp_equal(y1, x1));86 benchmark::DoNotOptimize(std::cmp_equal(x1, x1));87 benchmark::DoNotOptimize(std::cmp_equal(y1, y1));88 89 benchmark::DoNotOptimize(std::cmp_equal(x2, y2));90 benchmark::DoNotOptimize(std::cmp_equal(y2, x2));91 benchmark::DoNotOptimize(std::cmp_equal(x2, x2));92 benchmark::DoNotOptimize(std::cmp_equal(y2, y2));93 }94 }95 96 static std::string name() { return "BM_CmpEqual" + TType::name() + UType::name(); }97};98 99template <typename TType, typename UType>100struct CmpLess {101 static void run(benchmark::State& state) {102 using T = std::tuple_element_t<TType::value, TestType>;103 using U = std::tuple_element_t<UType::value, TestType>;104 105 T x1 = T{127}, x2 = T{111};106 U y1 = U{123}, y2 = U{1};107 for (auto _ : state) {108 benchmark::DoNotOptimize(x1);109 benchmark::DoNotOptimize(x2);110 benchmark::DoNotOptimize(y1);111 benchmark::DoNotOptimize(y2);112 benchmark::DoNotOptimize(std::cmp_less(x1, y1));113 benchmark::DoNotOptimize(std::cmp_less(y1, x1));114 benchmark::DoNotOptimize(std::cmp_less(x1, x1));115 benchmark::DoNotOptimize(std::cmp_less(y1, y1));116 117 benchmark::DoNotOptimize(std::cmp_less(x2, y2));118 benchmark::DoNotOptimize(std::cmp_less(y2, x2));119 benchmark::DoNotOptimize(std::cmp_less(x2, x2));120 benchmark::DoNotOptimize(std::cmp_less(y2, y2));121 }122 }123 124 static std::string name() { return "BM_CmpLess" + TType::name() + UType::name(); }125};126 127} // namespace128 129int main(int argc, char** argv) {130 benchmark::Initialize(&argc, argv);131 if (benchmark::ReportUnrecognizedArguments(argc, argv))132 return 1;133 134 makeCartesianProductBenchmark<CmpEqual, AllValueTypes, AllValueTypes>();135 makeCartesianProductBenchmark<CmpLess, AllValueTypes, AllValueTypes>();136 benchmark::RunSpecifiedBenchmarks();137 138 return 0;139}140