diff options
author | 2021-01-11 15:31:56 +0000 | |
---|---|---|
committer | 2021-01-11 15:31:56 +0000 | |
commit | 16ff81ed8b1ed9aa06fb1a731a2446b66cc49bef (patch) | |
tree | 1a7dd8152b94f6f8cd318bfaf85aa40882854583 /lib/libcxx/utils/google-benchmark/test/complexity_test.cc | |
parent | sync (diff) | |
download | wireguard-openbsd-16ff81ed8b1ed9aa06fb1a731a2446b66cc49bef.tar.xz wireguard-openbsd-16ff81ed8b1ed9aa06fb1a731a2446b66cc49bef.zip |
Remove libc++ and libc++abi 8.0.0 now that we switched to version 10.0.1
in the gnu/ directory.
Diffstat (limited to 'lib/libcxx/utils/google-benchmark/test/complexity_test.cc')
-rw-r--r-- | lib/libcxx/utils/google-benchmark/test/complexity_test.cc | 183 |
1 files changed, 0 insertions, 183 deletions
diff --git a/lib/libcxx/utils/google-benchmark/test/complexity_test.cc b/lib/libcxx/utils/google-benchmark/test/complexity_test.cc deleted file mode 100644 index 323ddfe7ac5..00000000000 --- a/lib/libcxx/utils/google-benchmark/test/complexity_test.cc +++ /dev/null @@ -1,183 +0,0 @@ -#undef NDEBUG -#include <algorithm> -#include <cassert> -#include <cmath> -#include <cstdlib> -#include <vector> -#include "benchmark/benchmark.h" -#include "output_test.h" - -namespace { - -#define ADD_COMPLEXITY_CASES(...) \ - int CONCAT(dummy, __LINE__) = AddComplexityTest(__VA_ARGS__) - -int AddComplexityTest(std::string test_name, std::string big_o_test_name, - std::string rms_test_name, std::string big_o) { - SetSubstitutions({{"%name", test_name}, - {"%bigo_name", big_o_test_name}, - {"%rms_name", rms_test_name}, - {"%bigo_str", "[ ]* %float " + big_o}, - {"%bigo", big_o}, - {"%rms", "[ ]*[0-9]+ %"}}); - AddCases( - TC_ConsoleOut, - {{"^%bigo_name %bigo_str %bigo_str[ ]*$"}, - {"^%bigo_name", MR_Not}, // Assert we we didn't only matched a name. - {"^%rms_name %rms %rms[ ]*$", MR_Next}}); - AddCases(TC_JSONOut, {{"\"name\": \"%bigo_name\",$"}, - {"\"run_name\": \"%name\",$", MR_Next}, - {"\"run_type\": \"aggregate\",$", MR_Next}, - {"\"aggregate_name\": \"BigO\",$", MR_Next}, - {"\"cpu_coefficient\": %float,$", MR_Next}, - {"\"real_coefficient\": %float,$", MR_Next}, - {"\"big_o\": \"%bigo\",$", MR_Next}, - {"\"time_unit\": \"ns\"$", MR_Next}, - {"}", MR_Next}, - {"\"name\": \"%rms_name\",$"}, - {"\"run_name\": \"%name\",$", MR_Next}, - {"\"run_type\": \"aggregate\",$", MR_Next}, - {"\"aggregate_name\": \"RMS\",$", MR_Next}, - {"\"rms\": %float$", MR_Next}, - {"}", MR_Next}}); - AddCases(TC_CSVOut, {{"^\"%bigo_name\",,%float,%float,%bigo,,,,,$"}, - {"^\"%bigo_name\"", MR_Not}, - {"^\"%rms_name\",,%float,%float,,,,,,$", MR_Next}}); - return 0; -} - -} // end namespace - -// ========================================================================= // -// --------------------------- Testing BigO O(1) --------------------------- // -// ========================================================================= // - -void BM_Complexity_O1(benchmark::State& state) { - for (auto _ : state) { - for (int i = 0; i < 1024; ++i) { - benchmark::DoNotOptimize(&i); - } - } - state.SetComplexityN(state.range(0)); -} -BENCHMARK(BM_Complexity_O1)->Range(1, 1 << 18)->Complexity(benchmark::o1); -BENCHMARK(BM_Complexity_O1)->Range(1, 1 << 18)->Complexity(); -BENCHMARK(BM_Complexity_O1)->Range(1, 1 << 18)->Complexity([](int64_t) { - return 1.0; -}); - -const char *one_test_name = "BM_Complexity_O1"; -const char *big_o_1_test_name = "BM_Complexity_O1_BigO"; -const char *rms_o_1_test_name = "BM_Complexity_O1_RMS"; -const char *enum_big_o_1 = "\\([0-9]+\\)"; -// FIXME: Tolerate both '(1)' and 'lgN' as output when the complexity is auto -// deduced. -// See https://github.com/google/benchmark/issues/272 -const char *auto_big_o_1 = "(\\([0-9]+\\))|(lgN)"; -const char *lambda_big_o_1 = "f\\(N\\)"; - -// Add enum tests -ADD_COMPLEXITY_CASES(one_test_name, big_o_1_test_name, rms_o_1_test_name, - enum_big_o_1); - -// Add auto enum tests -ADD_COMPLEXITY_CASES(one_test_name, big_o_1_test_name, rms_o_1_test_name, - auto_big_o_1); - -// Add lambda tests -ADD_COMPLEXITY_CASES(one_test_name, big_o_1_test_name, rms_o_1_test_name, - lambda_big_o_1); - -// ========================================================================= // -// --------------------------- Testing BigO O(N) --------------------------- // -// ========================================================================= // - -std::vector<int> ConstructRandomVector(int64_t size) { - std::vector<int> v; - v.reserve(static_cast<int>(size)); - for (int i = 0; i < size; ++i) { - v.push_back(static_cast<int>(std::rand() % size)); - } - return v; -} - -void BM_Complexity_O_N(benchmark::State& state) { - auto v = ConstructRandomVector(state.range(0)); - // Test worst case scenario (item not in vector) - const int64_t item_not_in_vector = state.range(0) * 2; - for (auto _ : state) { - benchmark::DoNotOptimize(std::find(v.begin(), v.end(), item_not_in_vector)); - } - state.SetComplexityN(state.range(0)); -} -BENCHMARK(BM_Complexity_O_N) - ->RangeMultiplier(2) - ->Range(1 << 10, 1 << 16) - ->Complexity(benchmark::oN); -BENCHMARK(BM_Complexity_O_N) - ->RangeMultiplier(2) - ->Range(1 << 10, 1 << 16) - ->Complexity([](int64_t n) -> double { return static_cast<double>(n); }); -BENCHMARK(BM_Complexity_O_N) - ->RangeMultiplier(2) - ->Range(1 << 10, 1 << 16) - ->Complexity(); - -const char *n_test_name = "BM_Complexity_O_N"; -const char *big_o_n_test_name = "BM_Complexity_O_N_BigO"; -const char *rms_o_n_test_name = "BM_Complexity_O_N_RMS"; -const char *enum_auto_big_o_n = "N"; -const char *lambda_big_o_n = "f\\(N\\)"; - -// Add enum tests -ADD_COMPLEXITY_CASES(n_test_name, big_o_n_test_name, rms_o_n_test_name, - enum_auto_big_o_n); - -// Add lambda tests -ADD_COMPLEXITY_CASES(n_test_name, big_o_n_test_name, rms_o_n_test_name, - lambda_big_o_n); - -// ========================================================================= // -// ------------------------- Testing BigO O(N*lgN) ------------------------- // -// ========================================================================= // - -static void BM_Complexity_O_N_log_N(benchmark::State& state) { - auto v = ConstructRandomVector(state.range(0)); - for (auto _ : state) { - std::sort(v.begin(), v.end()); - } - state.SetComplexityN(state.range(0)); -} -static const double kLog2E = 1.44269504088896340736; -BENCHMARK(BM_Complexity_O_N_log_N) - ->RangeMultiplier(2) - ->Range(1 << 10, 1 << 16) - ->Complexity(benchmark::oNLogN); -BENCHMARK(BM_Complexity_O_N_log_N) - ->RangeMultiplier(2) - ->Range(1 << 10, 1 << 16) - ->Complexity([](int64_t n) { return kLog2E * n * log(static_cast<double>(n)); }); -BENCHMARK(BM_Complexity_O_N_log_N) - ->RangeMultiplier(2) - ->Range(1 << 10, 1 << 16) - ->Complexity(); - -const char *n_lg_n_test_name = "BM_Complexity_O_N_log_N"; -const char *big_o_n_lg_n_test_name = "BM_Complexity_O_N_log_N_BigO"; -const char *rms_o_n_lg_n_test_name = "BM_Complexity_O_N_log_N_RMS"; -const char *enum_auto_big_o_n_lg_n = "NlgN"; -const char *lambda_big_o_n_lg_n = "f\\(N\\)"; - -// Add enum tests -ADD_COMPLEXITY_CASES(n_lg_n_test_name, big_o_n_lg_n_test_name, - rms_o_n_lg_n_test_name, enum_auto_big_o_n_lg_n); - -// Add lambda tests -ADD_COMPLEXITY_CASES(n_lg_n_test_name, big_o_n_lg_n_test_name, - rms_o_n_lg_n_test_name, lambda_big_o_n_lg_n); - -// ========================================================================= // -// --------------------------- TEST CASES END ------------------------------ // -// ========================================================================= // - -int main(int argc, char *argv[]) { RunOutputTests(argc, argv); } |