node/deps/v8/test/js-perf-test/ClassFields/evaluate-class.js

// Copyright 2021 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
'use strict';

d8.file.execute('classes.js');

const BENCHMARK_NAME = arguments[0];
const TEST_TYPE = arguments[1];
const optimize_param = arguments[2];
let optimize;
if (optimize_param == "opt") {
  optimize = true;
} else if (optimize_param == "noopt"){
  optimize = false;
} else {
  throw new Error("Unknown optimization configuration " + arguments.join(' '));
}

let factory;
let array;

switch (TEST_TYPE) {
  case "public-field-single":
    factory = EvaluateSinglePublicFieldClass;
    break;
  case "public-field-multiple":
    factory = EvaluateMultiPublicFieldClass;
    break;
  case "private-field-single":
    factory = EvaluateSinglePrivateFieldClass;
    break;
  case "private-field-multiple":
    factory = EvaluateMultiPrivateFieldClass;
    break;

  default:
    throw new Error("Unknown optimization configuration " + arguments.join(' '));
}

if (optimize) {
  %PrepareFunctionForOptimization(factory);
} else {
  %NeverOptimizeFunction(factory);
}

function setUp() {
  array = [factory(), factory()];
  // Populate the array first to reduce the impact of
  // array allocations.
  for (let i = 0; i < LOCAL_ITERATIONS - 2; ++i) {
    array.push(array[0]);
  }
  if (optimize) {
    %OptimizeFunctionOnNextCall(factory);
  }
}

function runBenchmark() {
  for (let i = 0; i < LOCAL_ITERATIONS; ++i) {
    array[i] = factory();
  }
}

function tearDown() {
  if (array.length < 3) {
    throw new Error(`Check failed, array length ${array.length}`);
  }

  for (const klass of array) {
    const instance = new klass();
    if (!instance.check())
      throw new Error(`instance.check() failed`);
  }
}

const DETERMINISTIC_RUNS = 1;
const LOCAL_ITERATIONS = 10000;
new BenchmarkSuite(`${BENCHMARK_NAME}`, [1000], [
  new Benchmark(
    `${BENCHMARK_NAME}-${TEST_TYPE}-${optimize_param}`,
    false, false, DETERMINISTIC_RUNS, runBenchmark, setUp, tearDown)
]);