v8/test/js-perf-test/Array/every.js

// Copyright 2017 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.

function benchy(name, test, testSetup) {
  new BenchmarkSuite(name, [1000],
      [
        new Benchmark(name, false, false, 0, test, testSetup, ()=>{})
      ]);
}

benchy('DoubleEvery', DoubleEvery, DoubleEverySetup);
benchy('SmiEvery', SmiEvery, SmiEverySetup);
benchy('FastEvery', FastEvery, FastEverySetup);
benchy('OptFastEvery', OptFastEvery, FastEverySetup);

var array;
// Initialize func variable to ensure the first test doesn't benefit from
// global object property tracking.
var func = 0;
var this_arg;
var result;
var array_size = 100;

// Although these functions have the same code, they are separated for
// clean IC feedback.
function DoubleEvery() {
  result = array.every(func, this_arg);
}
function SmiEvery() {
  result = array.every(func, this_arg);
}
function FastEvery() {
  result = array.every(func, this_arg);
}

// Make sure we inline the callback, pick up all possible TurboFan
// optimizations.
function RunOptFastEvery(multiple) {
  // Use of variable multiple in the callback function forces
  // context creation without escape analysis.
  //
  // Also, the arrow function requires inlining based on
  // SharedFunctionInfo.
  result = array.every((v, i, a) => multiple === 3);
}

// Don't optimize because I want to optimize RunOptFastMap with a parameter
// to be used in the callback.
%NeverOptimizeFunction(OptFastEvery);
function OptFastEvery() { RunOptFastEvery(3); }

function SmiEverySetup() {
  array = new Array();
  for (var i = 0; i < array_size; i++) array[i] = i;
  func = (value, index, object) => { return value != 34343; };
}

function DoubleEverySetup() {
  array = new Array();
  for (var i = 0; i < array_size; i++) array[i] = (i + 0.5);
  func = (value, index, object) => { return value > 0.0; };
}

function FastEverySetup() {
  array = new Array();
  for (var i = 0; i < array_size; i++) array[i] = 'value ' + i;
  func = (value, index, object) => { return value !== 'hi'; };
}