v8/test/js-perf-test/Array/for-each.js
Camillo Bruni d845d28ecf [js-perf-tests] Cleanup and more elements kind helpers
Bug: chromium:840785
Change-Id: I93f417084cc3ad3d1b906bdbef5dda14ead208c6
Reviewed-on: https://chromium-review.googlesource.com/1169044
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#55082}
2018-08-13 10:14:38 +00:00

75 lines
2.0 KiB
JavaScript

// Copyright 2018 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 Naive() {
let index = -1;
const length = array == null ? 0 : array.length;
for (let index = 0; index < length; index++) {
const value = array[index];
if (func(value, index, array)) {
result = value;
break;
}
}
}
function NaiveSetup() {
// Prime Naive with polymorphic cases.
array = [1, 2, 3];
Naive();
Naive();
array = [3.4]; Naive();
array = new Array(10); array[0] = 'hello'; Naive();
SmiSetup();
delete array[1];
}
// Make sure we inline the callback, pick up all possible TurboFan
// optimizations.
function RunOptFast(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.forEach((v, i, a) => v === `value ${multiple}`);
}
// Don't optimize because I want to optimize RunOptFast with a parameter
// to be used in the callback.
%NeverOptimizeFunction(OptFast);
function OptFast() { RunOptFast(max_index); }
function side_effect(a) { return a; }
%NeverOptimizeFunction(side_effect);
function OptUnreliable() {
result = array.forEach(func, side_effect(array));
}
DefineHigherOrderTests([
['NaiveForEachReplacement', Naive, NaiveSetup, v => v === max_index],
[
'DoubleForEach', newClosure('forEach'), DoubleSetup,
v => v === max_index + 0.5
],
['SmiForEach', newClosure('forEach'), SmiSetup, v => v === max_index],
[
'FastForEach', newClosure('forEach'), FastSetup,
v => v === `value ${max_index}`
],
[
'GenericForEach', newClosure('forEach', true), ObjectSetup,
v => v === max_index
],
['OptFastForEach', OptFast, FastSetup, undefined],
[
'OptUnreliableForEach', OptUnreliable, FastSetup,
v => v === `value ${max_index}`
]
]);
})();