third-party/benchmark/test/perf_counters_test.cc

   1 #undef NDEBUG
   2
   3 #include "../src/perf_counters.h"
   4
   5 #include "benchmark/benchmark.h"
   6 #include "output_test.h"
   7
   8 static void BM_Simple(benchmark::State& state) {
   9   for (auto _ : state) {
  10     benchmark::DoNotOptimize(state.iterations());
  11   }
  12 }
  13 BENCHMARK(BM_Simple);
  14 ADD_CASES(TC_JSONOut, {{"\"name\": \"BM_Simple\",$"}});
  15
  16 static void CheckSimple(Results const& e) {
  17   CHECK_COUNTER_VALUE(e, double, "CYCLES", GT, 0);
  18   CHECK_COUNTER_VALUE(e, double, "BRANCHES", GT, 0.0);
  19 }
  20 CHECK_BENCHMARK_RESULTS("BM_Simple", &CheckSimple);
  21
  22 int main(int argc, char* argv[]) {
  23   if (!benchmark::internal::PerfCounters::kSupported) {
  24     return 0;
  25   }
  26   RunOutputTests(argc, argv);
  27 }