Add new string benchmarks
llvm-svn: 336636
Cr-Mirrored-From: sso://chromium.googlesource.com/_direct/external/github.com/llvm/llvm-project
Cr-Mirrored-Commit: 09701324a1d0926b8ea2ba026a094cf6957f9ea5
diff --git a/benchmarks/string.bench.cpp b/benchmarks/string.bench.cpp
index 8324f3e..8a09e73 100644
--- a/benchmarks/string.bench.cpp
+++ b/benchmarks/string.bench.cpp
@@ -46,4 +46,25 @@
}
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();