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Diffstat (limited to 'third_party/abseil_cpp/absl/strings/numbers_benchmark.cc')
-rw-r--r--third_party/abseil_cpp/absl/strings/numbers_benchmark.cc286
1 files changed, 0 insertions, 286 deletions
diff --git a/third_party/abseil_cpp/absl/strings/numbers_benchmark.cc b/third_party/abseil_cpp/absl/strings/numbers_benchmark.cc
deleted file mode 100644
index 6e79b3e811..0000000000
--- a/third_party/abseil_cpp/absl/strings/numbers_benchmark.cc
+++ /dev/null
@@ -1,286 +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 <cstdint>
-#include <random>
-#include <string>
-#include <type_traits>
-#include <vector>
-
-#include "benchmark/benchmark.h"
-#include "absl/base/internal/raw_logging.h"
-#include "absl/random/distributions.h"
-#include "absl/random/random.h"
-#include "absl/strings/numbers.h"
-
-namespace {
-
-template <typename T>
-void BM_FastIntToBuffer(benchmark::State& state) {
-  const int inc = state.range(0);
-  char buf[absl::numbers_internal::kFastToBufferSize];
-  // Use the unsigned type to increment to take advantage of well-defined
-  // modular arithmetic.
-  typename std::make_unsigned<T>::type x = 0;
-  for (auto _ : state) {
-    absl::numbers_internal::FastIntToBuffer(static_cast<T>(x), buf);
-    x += inc;
-  }
-}
-BENCHMARK_TEMPLATE(BM_FastIntToBuffer, int32_t)->Range(0, 1 << 15);
-BENCHMARK_TEMPLATE(BM_FastIntToBuffer, int64_t)->Range(0, 1 << 30);
-
-// Creates an integer that would be printed as `num_digits` repeated 7s in the
-// given `base`. `base` must be greater than or equal to 8.
-int64_t RepeatedSevens(int num_digits, int base) {
-  ABSL_RAW_CHECK(base >= 8, "");
-  int64_t num = 7;
-  while (--num_digits) num = base * num + 7;
-  return num;
-}
-
-void BM_safe_strto32_string(benchmark::State& state) {
-  const int digits = state.range(0);
-  const int base = state.range(1);
-  std::string str(digits, '7');  // valid in octal, decimal and hex
-  int32_t value = 0;
-  for (auto _ : state) {
-    benchmark::DoNotOptimize(
-        absl::numbers_internal::safe_strto32_base(str, &value, base));
-  }
-  ABSL_RAW_CHECK(value == RepeatedSevens(digits, base), "");
-}
-BENCHMARK(BM_safe_strto32_string)
-    ->ArgPair(1, 8)
-    ->ArgPair(1, 10)
-    ->ArgPair(1, 16)
-    ->ArgPair(2, 8)
-    ->ArgPair(2, 10)
-    ->ArgPair(2, 16)
-    ->ArgPair(4, 8)
-    ->ArgPair(4, 10)
-    ->ArgPair(4, 16)
-    ->ArgPair(8, 8)
-    ->ArgPair(8, 10)
-    ->ArgPair(8, 16)
-    ->ArgPair(10, 8)
-    ->ArgPair(9, 10);
-
-void BM_safe_strto64_string(benchmark::State& state) {
-  const int digits = state.range(0);
-  const int base = state.range(1);
-  std::string str(digits, '7');  // valid in octal, decimal and hex
-  int64_t value = 0;
-  for (auto _ : state) {
-    benchmark::DoNotOptimize(
-        absl::numbers_internal::safe_strto64_base(str, &value, base));
-  }
-  ABSL_RAW_CHECK(value == RepeatedSevens(digits, base), "");
-}
-BENCHMARK(BM_safe_strto64_string)
-    ->ArgPair(1, 8)
-    ->ArgPair(1, 10)
-    ->ArgPair(1, 16)
-    ->ArgPair(2, 8)
-    ->ArgPair(2, 10)
-    ->ArgPair(2, 16)
-    ->ArgPair(4, 8)
-    ->ArgPair(4, 10)
-    ->ArgPair(4, 16)
-    ->ArgPair(8, 8)
-    ->ArgPair(8, 10)
-    ->ArgPair(8, 16)
-    ->ArgPair(16, 8)
-    ->ArgPair(16, 10)
-    ->ArgPair(16, 16);
-
-void BM_safe_strtou32_string(benchmark::State& state) {
-  const int digits = state.range(0);
-  const int base = state.range(1);
-  std::string str(digits, '7');  // valid in octal, decimal and hex
-  uint32_t value = 0;
-  for (auto _ : state) {
-    benchmark::DoNotOptimize(
-        absl::numbers_internal::safe_strtou32_base(str, &value, base));
-  }
-  ABSL_RAW_CHECK(value == RepeatedSevens(digits, base), "");
-}
-BENCHMARK(BM_safe_strtou32_string)
-    ->ArgPair(1, 8)
-    ->ArgPair(1, 10)
-    ->ArgPair(1, 16)
-    ->ArgPair(2, 8)
-    ->ArgPair(2, 10)
-    ->ArgPair(2, 16)
-    ->ArgPair(4, 8)
-    ->ArgPair(4, 10)
-    ->ArgPair(4, 16)
-    ->ArgPair(8, 8)
-    ->ArgPair(8, 10)
-    ->ArgPair(8, 16)
-    ->ArgPair(10, 8)
-    ->ArgPair(9, 10);
-
-void BM_safe_strtou64_string(benchmark::State& state) {
-  const int digits = state.range(0);
-  const int base = state.range(1);
-  std::string str(digits, '7');  // valid in octal, decimal and hex
-  uint64_t value = 0;
-  for (auto _ : state) {
-    benchmark::DoNotOptimize(
-        absl::numbers_internal::safe_strtou64_base(str, &value, base));
-  }
-  ABSL_RAW_CHECK(value == RepeatedSevens(digits, base), "");
-}
-BENCHMARK(BM_safe_strtou64_string)
-    ->ArgPair(1, 8)
-    ->ArgPair(1, 10)
-    ->ArgPair(1, 16)
-    ->ArgPair(2, 8)
-    ->ArgPair(2, 10)
-    ->ArgPair(2, 16)
-    ->ArgPair(4, 8)
-    ->ArgPair(4, 10)
-    ->ArgPair(4, 16)
-    ->ArgPair(8, 8)
-    ->ArgPair(8, 10)
-    ->ArgPair(8, 16)
-    ->ArgPair(16, 8)
-    ->ArgPair(16, 10)
-    ->ArgPair(16, 16);
-
-// Returns a vector of `num_strings` strings. Each string represents a
-// floating point number with `num_digits` digits before the decimal point and
-// another `num_digits` digits after.
-std::vector<std::string> MakeFloatStrings(int num_strings, int num_digits) {
-  // For convenience, use a random number generator to generate the test data.
-  // We don't actually need random properties, so use a fixed seed.
-  std::minstd_rand0 rng(1);
-  std::uniform_int_distribution<int> random_digit('0', '9');
-
-  std::vector<std::string> float_strings(num_strings);
-  for (std::string& s : float_strings) {
-    s.reserve(2 * num_digits + 1);
-    for (int i = 0; i < num_digits; ++i) {
-      s.push_back(static_cast<char>(random_digit(rng)));
-    }
-    s.push_back('.');
-    for (int i = 0; i < num_digits; ++i) {
-      s.push_back(static_cast<char>(random_digit(rng)));
-    }
-  }
-  return float_strings;
-}
-
-template <typename StringType>
-StringType GetStringAs(const std::string& s) {
-  return static_cast<StringType>(s);
-}
-template <>
-const char* GetStringAs<const char*>(const std::string& s) {
-  return s.c_str();
-}
-
-template <typename StringType>
-std::vector<StringType> GetStringsAs(const std::vector<std::string>& strings) {
-  std::vector<StringType> result;
-  result.reserve(strings.size());
-  for (const std::string& s : strings) {
-    result.push_back(GetStringAs<StringType>(s));
-  }
-  return result;
-}
-
-template <typename T>
-void BM_SimpleAtof(benchmark::State& state) {
-  const int num_strings = state.range(0);
-  const int num_digits = state.range(1);
-  std::vector<std::string> backing_strings =
-      MakeFloatStrings(num_strings, num_digits);
-  std::vector<T> inputs = GetStringsAs<T>(backing_strings);
-  float value;
-  for (auto _ : state) {
-    for (const T& input : inputs) {
-      benchmark::DoNotOptimize(absl::SimpleAtof(input, &value));
-    }
-  }
-}
-BENCHMARK_TEMPLATE(BM_SimpleAtof, absl::string_view)
-    ->ArgPair(10, 1)
-    ->ArgPair(10, 2)
-    ->ArgPair(10, 4)
-    ->ArgPair(10, 8);
-BENCHMARK_TEMPLATE(BM_SimpleAtof, const char*)
-    ->ArgPair(10, 1)
-    ->ArgPair(10, 2)
-    ->ArgPair(10, 4)
-    ->ArgPair(10, 8);
-BENCHMARK_TEMPLATE(BM_SimpleAtof, std::string)
-    ->ArgPair(10, 1)
-    ->ArgPair(10, 2)
-    ->ArgPair(10, 4)
-    ->ArgPair(10, 8);
-
-template <typename T>
-void BM_SimpleAtod(benchmark::State& state) {
-  const int num_strings = state.range(0);
-  const int num_digits = state.range(1);
-  std::vector<std::string> backing_strings =
-      MakeFloatStrings(num_strings, num_digits);
-  std::vector<T> inputs = GetStringsAs<T>(backing_strings);
-  double value;
-  for (auto _ : state) {
-    for (const T& input : inputs) {
-      benchmark::DoNotOptimize(absl::SimpleAtod(input, &value));
-    }
-  }
-}
-BENCHMARK_TEMPLATE(BM_SimpleAtod, absl::string_view)
-    ->ArgPair(10, 1)
-    ->ArgPair(10, 2)
-    ->ArgPair(10, 4)
-    ->ArgPair(10, 8);
-BENCHMARK_TEMPLATE(BM_SimpleAtod, const char*)
-    ->ArgPair(10, 1)
-    ->ArgPair(10, 2)
-    ->ArgPair(10, 4)
-    ->ArgPair(10, 8);
-BENCHMARK_TEMPLATE(BM_SimpleAtod, std::string)
-    ->ArgPair(10, 1)
-    ->ArgPair(10, 2)
-    ->ArgPair(10, 4)
-    ->ArgPair(10, 8);
-
-void BM_FastHexToBufferZeroPad16(benchmark::State& state) {
-  absl::BitGen rng;
-  std::vector<uint64_t> nums;
-  nums.resize(1000);
-  auto min = std::numeric_limits<uint64_t>::min();
-  auto max = std::numeric_limits<uint64_t>::max();
-  for (auto& num : nums) {
-    num = absl::LogUniform(rng, min, max);
-  }
-
-  char buf[16];
-  while (state.KeepRunningBatch(nums.size())) {
-    for (auto num : nums) {
-      auto digits = absl::numbers_internal::FastHexToBufferZeroPad16(num, buf);
-      benchmark::DoNotOptimize(digits);
-      benchmark::DoNotOptimize(buf);
-    }
-  }
-}
-BENCHMARK(BM_FastHexToBufferZeroPad16);
-
-}  // namespace
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