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comparison: js/src/tests/js1_8_1/jit/regress-469927.js
js/src/tests/js1_8_1/jit/regress-469927.js
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- 6474c204b198
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| -1:000000000000 | 0:b73e760e43d3 |
|---|---|
| 1 // |reftest| skip -- bogus perf test (bug 540512) | |
| 2 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |
| 3 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 4 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 6 | |
| 7 //----------------------------------------------------------------------------- | |
| 8 var BUGNUMBER = 469927; | |
| 9 var summary = 'TM: jit should not slow down short loop with let'; | |
| 10 var actual = ''; | |
| 11 var expect = ''; | |
| 12 | |
| 13 | |
| 14 //----------------------------------------------------------------------------- | |
| 15 test(); | |
| 16 //----------------------------------------------------------------------------- | |
| 17 | |
| 18 function test() | |
| 19 { | |
| 20 enterFunc ('test'); | |
| 21 printBugNumber(BUGNUMBER); | |
| 22 printStatus (summary); | |
| 23 | |
| 24 function letitbe() { | |
| 25 var start = new Date(); | |
| 26 for (let i = 0; i < 500000; ++i) { | |
| 27 for (let j = 0; j < 4; ++j) { } | |
| 28 } | |
| 29 var stop = new Date(); | |
| 30 return stop - start; | |
| 31 } | |
| 32 | |
| 33 jit(false); | |
| 34 var timenonjit = letitbe(); | |
| 35 jit(true); | |
| 36 var timejit = letitbe(); | |
| 37 jit(false); | |
| 38 | |
| 39 print('time: nonjit = ' + timenonjit + ', jit = ' + timejit); | |
| 40 | |
| 41 expect = true; | |
| 42 actual = timejit < timenonjit; | |
| 43 | |
| 44 reportCompare(expect, actual, summary); | |
| 45 | |
| 46 exitFunc ('test'); | |
| 47 } |
