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-rw-r--r--third_party/abseil_cpp/absl/strings/charconv_benchmark.cc204
1 files changed, 0 insertions, 204 deletions
diff --git a/third_party/abseil_cpp/absl/strings/charconv_benchmark.cc b/third_party/abseil_cpp/absl/strings/charconv_benchmark.cc
deleted file mode 100644
index e8c7371d6586..000000000000
--- a/third_party/abseil_cpp/absl/strings/charconv_benchmark.cc
+++ /dev/null
@@ -1,204 +0,0 @@
-// Copyright 2018 The Abseil Authors.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      https://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-#include "absl/strings/charconv.h"
-
-#include <cstdlib>
-#include <cstring>
-#include <string>
-
-#include "benchmark/benchmark.h"
-
-namespace {
-
-void BM_Strtod_Pi(benchmark::State& state) {
-  const char* pi = "3.14159";
-  for (auto s : state) {
-    benchmark::DoNotOptimize(pi);
-    benchmark::DoNotOptimize(strtod(pi, nullptr));
-  }
-}
-BENCHMARK(BM_Strtod_Pi);
-
-void BM_Absl_Pi(benchmark::State& state) {
-  const char* pi = "3.14159";
-  const char* pi_end = pi + strlen(pi);
-  for (auto s : state) {
-    benchmark::DoNotOptimize(pi);
-    double v;
-    absl::from_chars(pi, pi_end, v);
-    benchmark::DoNotOptimize(v);
-  }
-}
-BENCHMARK(BM_Absl_Pi);
-
-void BM_Strtod_Pi_float(benchmark::State& state) {
-  const char* pi = "3.14159";
-  for (auto s : state) {
-    benchmark::DoNotOptimize(pi);
-    benchmark::DoNotOptimize(strtof(pi, nullptr));
-  }
-}
-BENCHMARK(BM_Strtod_Pi_float);
-
-void BM_Absl_Pi_float(benchmark::State& state) {
-  const char* pi = "3.14159";
-  const char* pi_end = pi + strlen(pi);
-  for (auto s : state) {
-    benchmark::DoNotOptimize(pi);
-    float v;
-    absl::from_chars(pi, pi_end, v);
-    benchmark::DoNotOptimize(v);
-  }
-}
-BENCHMARK(BM_Absl_Pi_float);
-
-void BM_Strtod_HardLarge(benchmark::State& state) {
-  const char* num = "272104041512242479.e200";
-  for (auto s : state) {
-    benchmark::DoNotOptimize(num);
-    benchmark::DoNotOptimize(strtod(num, nullptr));
-  }
-}
-BENCHMARK(BM_Strtod_HardLarge);
-
-void BM_Absl_HardLarge(benchmark::State& state) {
-  const char* numstr = "272104041512242479.e200";
-  const char* numstr_end = numstr + strlen(numstr);
-  for (auto s : state) {
-    benchmark::DoNotOptimize(numstr);
-    double v;
-    absl::from_chars(numstr, numstr_end, v);
-    benchmark::DoNotOptimize(v);
-  }
-}
-BENCHMARK(BM_Absl_HardLarge);
-
-void BM_Strtod_HardSmall(benchmark::State& state) {
-  const char* num = "94080055902682397.e-242";
-  for (auto s : state) {
-    benchmark::DoNotOptimize(num);
-    benchmark::DoNotOptimize(strtod(num, nullptr));
-  }
-}
-BENCHMARK(BM_Strtod_HardSmall);
-
-void BM_Absl_HardSmall(benchmark::State& state) {
-  const char* numstr = "94080055902682397.e-242";
-  const char* numstr_end = numstr + strlen(numstr);
-  for (auto s : state) {
-    benchmark::DoNotOptimize(numstr);
-    double v;
-    absl::from_chars(numstr, numstr_end, v);
-    benchmark::DoNotOptimize(v);
-  }
-}
-BENCHMARK(BM_Absl_HardSmall);
-
-void BM_Strtod_HugeMantissa(benchmark::State& state) {
-  std::string huge(200, '3');
-  const char* num = huge.c_str();
-  for (auto s : state) {
-    benchmark::DoNotOptimize(num);
-    benchmark::DoNotOptimize(strtod(num, nullptr));
-  }
-}
-BENCHMARK(BM_Strtod_HugeMantissa);
-
-void BM_Absl_HugeMantissa(benchmark::State& state) {
-  std::string huge(200, '3');
-  const char* num = huge.c_str();
-  const char* num_end = num + 200;
-  for (auto s : state) {
-    benchmark::DoNotOptimize(num);
-    double v;
-    absl::from_chars(num, num_end, v);
-    benchmark::DoNotOptimize(v);
-  }
-}
-BENCHMARK(BM_Absl_HugeMantissa);
-
-std::string MakeHardCase(int length) {
-  // The number 1.1521...e-297 is exactly halfway between 12345 * 2**-1000 and
-  // the next larger representable number.  The digits of this number are in
-  // the string below.
-  const std::string digits =
-      "1."
-      "152113937042223790993097181572444900347587985074226836242307364987727724"
-      "831384300183638649152607195040591791364113930628852279348613864894524591"
-      "272746490313676832900762939595690019745859128071117417798540258114233761"
-      "012939937017879509401007964861774960297319002612457273148497158989073482"
-      "171377406078223015359818300988676687994537274548940612510414856761641652"
-      "513434981938564294004070500716200446656421722229202383105446378511678258"
-      "370570631774499359748259931676320916632111681001853983492795053244971606"
-      "922718923011680846577744433974087653954904214152517799883551075537146316"
-      "168973685866425605046988661997658648354773076621610279716804960009043764"
-      "038392994055171112475093876476783502487512538082706095923790634572014823"
-      "78877699375152587890625" +
-      std::string(5000, '0');
-  // generate the hard cases on either side for the given length.
-  // Lengths between 3 and 1000 are reasonable.
-  return digits.substr(0, length) + "1e-297";
-}
-
-void BM_Strtod_Big_And_Difficult(benchmark::State& state) {
-  std::string testcase = MakeHardCase(state.range(0));
-  const char* begin = testcase.c_str();
-  for (auto s : state) {
-    benchmark::DoNotOptimize(begin);
-    benchmark::DoNotOptimize(strtod(begin, nullptr));
-  }
-}
-BENCHMARK(BM_Strtod_Big_And_Difficult)->Range(3, 5000);
-
-void BM_Absl_Big_And_Difficult(benchmark::State& state) {
-  std::string testcase = MakeHardCase(state.range(0));
-  const char* begin = testcase.c_str();
-  const char* end = begin + testcase.size();
-  for (auto s : state) {
-    benchmark::DoNotOptimize(begin);
-    double v;
-    absl::from_chars(begin, end, v);
-    benchmark::DoNotOptimize(v);
-  }
-}
-BENCHMARK(BM_Absl_Big_And_Difficult)->Range(3, 5000);
-
-}  // namespace
-
-// ------------------------------------------------------------------------
-// Benchmark                                 Time           CPU Iterations
-// ------------------------------------------------------------------------
-// BM_Strtod_Pi                             96 ns         96 ns    6337454
-// BM_Absl_Pi                               35 ns         35 ns   20031996
-// BM_Strtod_Pi_float                       91 ns         91 ns    7745851
-// BM_Absl_Pi_float                         35 ns         35 ns   20430298
-// BM_Strtod_HardLarge                     133 ns        133 ns    5288341
-// BM_Absl_HardLarge                       181 ns        181 ns    3855615
-// BM_Strtod_HardSmall                     279 ns        279 ns    2517243
-// BM_Absl_HardSmall                       287 ns        287 ns    2458744
-// BM_Strtod_HugeMantissa                  433 ns        433 ns    1604293
-// BM_Absl_HugeMantissa                    160 ns        160 ns    4403671
-// BM_Strtod_Big_And_Difficult/3           236 ns        236 ns    2942496
-// BM_Strtod_Big_And_Difficult/8           232 ns        232 ns    2983796
-// BM_Strtod_Big_And_Difficult/64          437 ns        437 ns    1591951
-// BM_Strtod_Big_And_Difficult/512        1738 ns       1738 ns     402519
-// BM_Strtod_Big_And_Difficult/4096       3943 ns       3943 ns     176128
-// BM_Strtod_Big_And_Difficult/5000       4397 ns       4397 ns     157878
-// BM_Absl_Big_And_Difficult/3              39 ns         39 ns   17799583
-// BM_Absl_Big_And_Difficult/8              43 ns         43 ns   16096859
-// BM_Absl_Big_And_Difficult/64            550 ns        550 ns    1259717
-// BM_Absl_Big_And_Difficult/512          4167 ns       4167 ns     171414
-// BM_Absl_Big_And_Difficult/4096         9160 ns       9159 ns      76297
-// BM_Absl_Big_And_Difficult/5000         9738 ns       9738 ns      70140