v01

thirdparty/basalt-headers/test/benchmark/test/perf_counters_test.cc

@@ -0,0 +1,27 @@
+#undef NDEBUG
+
+#include "../src/perf_counters.h"
+
+#include "benchmark/benchmark.h"
+#include "output_test.h"
+
+static void BM_Simple(benchmark::State& state) {
+  for (auto _ : state) {
+    benchmark::DoNotOptimize(state.iterations());
+  }
+}
+BENCHMARK(BM_Simple);
+ADD_CASES(TC_JSONOut, {{"\"name\": \"BM_Simple\",$"}});
+
+static void CheckSimple(Results const& e) {
+  CHECK_COUNTER_VALUE(e, double, "CYCLES", GT, 0);
+  CHECK_COUNTER_VALUE(e, double, "BRANCHES", GT, 0.0);
+}
+CHECK_BENCHMARK_RESULTS("BM_Simple", &CheckSimple);
+
+int main(int argc, char* argv[]) {
+  if (!benchmark::internal::PerfCounters::kSupported) {
+    return 0;
+  }
+  RunOutputTests(argc, argv);
+}