| /* |
| * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * - Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * - Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * - Neither the name of Oracle nor the names of its |
| * contributors may be used to endorse or promote products derived |
| * from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS |
| * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, |
| * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR |
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
| * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
| * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| /* |
| * A micro-benchmark for getters and setters with primitive values, |
| * alternating between ints and doubles. Introduction of primitive |
| * and optimistic user accessors in JDK-8062401 make this faster by |
| * 10x or more by allowing inlining and other optimizations to take place. |
| */ |
| |
| var x = { |
| get m() { |
| return this._m; |
| }, |
| set m(v) { |
| this._m = v; |
| }, |
| get n() { |
| return this._n; |
| }, |
| set n(v) { |
| this._n = v; |
| } |
| }; |
| |
| |
| function bench(v1, v2, result) { |
| var start = Date.now(); |
| x.n = v1; |
| for (var i = 0; i < 1e8; i++) { |
| x.m = v2; |
| if (x.m + x.n !== result) { |
| throw "wrong result"; |
| } |
| } |
| print("done in", Date.now() - start, "millis"); |
| } |
| |
| for (var i = 0; i < 10; i++) { |
| bench(i, 4, 4 + i); |
| } |
| |
| for (var i = 0; i < 10; i++) { |
| bench(i, 4.5, 4.5 + i); |
| } |
| |
| for (var i = 0; i < 10; i++) { |
| bench(i, 5, 5 + i); |
| } |
| |
| for (var i = 0; i < 10; i++) { |
| bench(i, 5.5, 5.5 + i); |
| } |