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Add new string benchmarks

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git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@336636 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Eric Fiselier 2018-07-10 04:11:22 +00:00
parent ffc31db661
commit 97d4134fbc
1 changed files with 21 additions and 0 deletions
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21
benchmarks/string.bench.cpp
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@ -46,4 +46,25 @@ static void BM_StringFindMatch2(benchmark::State &state) {
}
BENCHMARK(BM_StringFindMatch2)->Range(1, MAX_STRING_LEN / 4);
static void BM_StringCtorDefault(benchmark::State &state) {
while (state.KeepRunning()) {
for (unsigned I=0; I < 1000; ++I) {
std::string Default;
benchmark::DoNotOptimize(Default.c_str());
}
}
}
BENCHMARK(BM_StringCtorDefault);
static void BM_StringCtorCStr(benchmark::State &state) {
std::string Input = getRandomString(state.range(0));
const char *Str = Input.c_str();
benchmark::DoNotOptimize(Str);
while (state.KeepRunning()) {
std::string Tmp(Str);
benchmark::DoNotOptimize(Tmp.c_str());
}
}
BENCHMARK(BM_StringCtorCStr)->Arg(1)->Arg(8)->Range(16, MAX_STRING_LEN / 4);
BENCHMARK_MAIN();