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authorpatrick <patrick@openbsd.org>2021-01-11 15:31:56 +0000
committerpatrick <patrick@openbsd.org>2021-01-11 15:31:56 +0000
commit16ff81ed8b1ed9aa06fb1a731a2446b66cc49bef (patch)
tree1a7dd8152b94f6f8cd318bfaf85aa40882854583 /lib/libcxx/utils/google-benchmark/test/complexity_test.cc
parentsync (diff)
downloadwireguard-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.cc183
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); }