| // 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('DoubleReduceRight', DoubleReduceRight, DoubleReduceRightSetup); |
| benchy('SmiReduceRight', SmiReduceRight, SmiReduceRightSetup); |
| benchy('FastReduceRight', FastReduceRight, FastReduceRightSetup); |
| benchy('OptFastReduceRight', OptFastReduceRight, FastReduceRightSetup); |
| |
| 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 DoubleReduceRight() { |
| result = array.reduceRight(func, this_arg); |
| } |
| function SmiReduceRight() { |
| result = array.reduceRight(func, this_arg); |
| } |
| function FastReduceRight() { |
| result = array.reduceRight(func, this_arg); |
| } |
| |
| // Make sure we inline the callback, pick up all possible TurboFan |
| // optimizations. |
| function RunOptFastReduceRight(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.reduceRight((p, v, i, a) => p + multiple); |
| } |
| |
| // Don't optimize because I want to optimize RunOptFastMap with a parameter |
| // to be used in the callback. |
| %NeverOptimizeFunction(OptFastReduceRight); |
| function OptFastReduceRight() { RunOptFastReduceRight(3); } |
| |
| function SmiReduceRightSetup() { |
| array = new Array(); |
| for (var i = 0; i < array_size; i++) array[i] = i; |
| func = (prev, value, index, object) => { return prev + 1; }; |
| } |
| |
| function DoubleReduceRightSetup() { |
| array = new Array(); |
| for (var i = 0; i < array_size; i++) array[i] = (i + 0.5); |
| func = (prev, value, index, object) => { return prev + value; }; |
| } |
| |
| function FastReduceRightSetup() { |
| array = new Array(); |
| for (var i = 0; i < array_size; i++) array[i] = 'value ' + i; |
| func = (prev, value, index, object) => { return prev + value; }; |
| } |