Report 1ns instead of 0ns for probe_benchmarks. Some tools incorrectly assume that benchmark was not run if 0ns reported.

PiperOrigin-RevId: 852831533
Change-Id: Ibf2e60dcb308928358ddf80dc4d2f7eda8a78530

absl/container/internal/raw_hash_set_probe_benchmark.cc

diff --git a/absl/container/internal/raw_hash_set_probe_benchmark.cc b/absl/container/internal/raw_hash_set_probe_benchmark.cc
index a09f7d9..7165558 100644
--- a/absl/container/internal/raw_hash_set_probe_benchmark.cc
+++ b/absl/container/internal/raw_hash_set_probe_benchmark.cc
@@ -556,9 +556,11 @@
           // Check the regex again. We might had have enabled only one of the
           // stats for the benchmark.
           if (!CanRunBenchmark(name)) return;
+          // Report at least 1, because benchy drops results with zero.
+          double reported_value = std::max(1e9 * result.ratios.*val, 1.0);
           absl::PrintF("    %s{\n", comma);
-          absl::PrintF("      \"cpu_time\": %f,\n", 1e9 * result.ratios.*val);
-          absl::PrintF("      \"real_time\": %f,\n", 1e9 * result.ratios.*val);
+          absl::PrintF("      \"cpu_time\": %f,\n", reported_value);
+          absl::PrintF("      \"real_time\": %f,\n", reported_value);
           absl::PrintF("      \"iterations\": 1,\n");
           absl::PrintF("      \"name\": \"%s\",\n", name);
           absl::PrintF("      \"time_unit\": \"ns\"\n");