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-rw-r--r--third-party/benchmark/test/perf_counters_test.cc27
1 files changed, 27 insertions, 0 deletions
diff --git a/third-party/benchmark/test/perf_counters_test.cc b/third-party/benchmark/test/perf_counters_test.cc
new file mode 100644
index 000000000000..d6e0284d4d4b
--- /dev/null
+++ b/third-party/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"
+
+void BM_Simple(benchmark::State& state) {
+ for (auto _ : state) {
+ benchmark::DoNotOptimize(state.iterations());
+ }
+}
+BENCHMARK(BM_Simple);
+ADD_CASES(TC_JSONOut, {{"\"name\": \"BM_Simple\",$"}});
+
+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);
+}