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// 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('NaiveMapReplacement', NaiveMap, NaiveMapSetup);
benchy('DoubleMap', DoubleMap, DoubleMapSetup);
benchy('SmiMap', SmiMap, SmiMapSetup);
benchy('FastMap', FastMap, FastMapSetup);
benchy('ObjectMap', GenericMap, ObjectMapSetup);
var array;
var func;
var this_arg;
var result;
var array_size = 100;
// Although these functions have the same code, they are separated for
// clean IC feedback.
function DoubleMap() {
result = array.map(func, this_arg);
}
function SmiMap() {
result = array.map(func, this_arg);
}
function FastMap() {
result = array.map(func, this_arg);
}
function NaiveMap() {
let index = -1
const length = array == null ? 0 : array.length
const result = new Array(length)
while (++index < length) {
result[index] = func(array[index], index, array)
}
return result
}
function GenericMap() {
result = Array.prototype.map.call(array, func, this_arg);
}
function NaiveMapSetup() {
// Prime NaiveMap with polymorphic cases.
array = [1, 2, 3];
func = (v, i, a) => v;
NaiveMap();
NaiveMap();
array = [3.4]; NaiveMap();
array = new Array(10); array[0] = 'hello'; NaiveMap();
SmiMapSetup();
delete array[1];
}
function SmiMapSetup() {
array = new Array();
for (var i = 0; i < array_size; i++) array[i] = i;
func = (value, index, object) => { return value; };
}
function DoubleMapSetup() {
array = new Array();
for (var i = 0; i < array_size; i++) array[i] = (i + 0.5);
func = (value, index, object) => { return value; };
}
function FastMapSetup() {
array = new Array();
for (var i = 0; i < array_size; i++) array[i] = 'value ' + i;
func = (value, index, object) => { return value; };
}
function ObjectMapSetup() {
array = { length: array_size };
for (var i = 0; i < array_size; i++) {
array[i] = i;
}
func = (value, index, object) => { return value; };
}
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