int64_t cumulative_compile_time_us = 0;

    // True if we have decided that this cluster is too dynamic (i.e. its shapes
    // change too frequently) to profitably JIT compile.  Once a cluster is
    // tagged megamorphic, it stays megamorphic forever.
    bool is_megamorphic = false;

    std::string DebugString() const {
      return absl::StrCat(
          "DeviceCompilationProfiler::ClusterCompileStats {compile_count=",

  // times) so that the function is marked megamorphic.
  for (int i = 0; i < kCompileThreshold + 1; ++i) {
    EXPECT_TRUE(profiler->RegisterCompilation(function, 1, false).ok());
  }
  profiler->RegisterExecution(function);

  // Shouldn't compile cluster since it has gone megamorphic.
  EXPECT_FALSE(
      profiler->ShouldCompileCluster(function, DeviceCompileMode::kAsync, 0));

  // The is_megamorphic bit is "sticky".  We assume clusters that have been
  // observed to be megamorphic once stay megamorphic forever.
  if (!stats->is_megamorphic &&
      ShouldBeMegamorphic(stats->compile_count, stats->execution_count)) {
    VLOG(1) << "Marking " << function.name()
            << " as megamorphic, compile_count=" << stats->compile_count
            << " execution_count=" << stats->execution_count;

        X no feedback<br>
        0 uninitialized<br>
        . premonomorphic<br>
        1 monomorphic<br>
        ^ recompute handler<br>
        P polymorphic<br>
        N megamorphic<br>
        G generic
      </div>
    </div>
    <div id="total">
    </div>
    <div id="groupOption">
      Group Key
    </div>
    <tr-ui-b-table id="table"></tr-ui-b-table>