1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84
|
#include <benchmark/benchmark.h>
#include <frozen/unordered_map.h>
#include <frozen/string.h>
#include <algorithm>
#include <array>
#include <string>
#include <unordered_map>
static constexpr frozen::unordered_map<frozen::string, frozen::string, 32> Keywords{
{"auto", "keyword"}, {"break", "keyword"}, {"case", "keyword"}, {"char", "keyword"}, {"const", "keyword"}, {"continue", "keyword"},
{"default", "keyword"}, {"do", "keyword"}, {"double", "keyword"}, {"else", "keyword"}, {"enum", "keyword"}, {"extern", "keyword"},
{"float", "keyword"}, {"for", "keyword"}, {"goto", "keyword"}, {"if", "keyword"}, {"int", "keyword"}, {"long", "keyword"},
{"register", "keyword"}, {"return", "keyword"}, {"short", "keyword"}, {"signed", "keyword"}, {"sizeof", "keyword"}, {"static", "keyword"},
{"struct", "keyword"}, {"switch", "keyword"}, {"typedef", "keyword"}, {"union", "keyword"}, {"unsigned", "keyword"},
{"void", "keyword"}, {"volatile", "keyword"}, {"while", "keyword"}
};
static auto const *volatile Some = &Keywords;
static void BM_StrInFzUnorderedMap(benchmark::State &state)
{
for (auto _ : state)
{
for (auto kw : *Some)
{
volatile bool status = Keywords.count(kw.first);
benchmark::DoNotOptimize(status);
}
}
}
BENCHMARK(BM_StrInFzUnorderedMap);
static const std::unordered_map<frozen::string, frozen::string> Keywords_(Keywords.begin(), Keywords.end());
static void BM_StrInStdUnorderedMap(benchmark::State &state)
{
for (auto _ : state)
{
for (auto kw : *Some)
{
volatile bool status = Keywords_.count(kw.first);
benchmark::DoNotOptimize(status);
}
}
}
BENCHMARK(BM_StrInStdUnorderedMap);
static const frozen::string SomeStrings[32] = {
"auto0", "break0", "case0", "char0", "const0", "continue0",
"default0", "do0", "double0", "else0", "enum0", "extern0",
"float0", "for0", "goto0", "if0", "int0", "long0",
"register0", "return0", "short0", "signed0", "sizeof0", "static0",
"struct0", "switch0", "typedef0", "union0", "unsigned0", "void0",
"volatile0", "while0"};
static auto const *volatile SomeStringsPtr = &SomeStrings;
static void BM_StrNotInFzUnorderedMap(benchmark::State &state)
{
for (auto _ : state)
{
for (auto kw : *SomeStringsPtr)
{
volatile bool status = Keywords.count(kw);
benchmark::DoNotOptimize(status);
}
}
}
BENCHMARK(BM_StrNotInFzUnorderedMap);
static void BM_StrNotInStdUnorderedMap(benchmark::State &state)
{
for (auto _ : state)
{
for (auto kw : *SomeStringsPtr)
{
volatile bool status = Keywords_.count(kw);
benchmark::DoNotOptimize(status);
}
}
}
BENCHMARK(BM_StrNotInStdUnorderedMap);
|