Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1 | // Copyright 2015 the V8 project authors. All rights reserved. |
| 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
| 4 | |
| 5 | // Flags: --allow-natives-syntax |
| 6 | |
| 7 | function literals_sharing_test(warmup, optimize) { |
| 8 | function closure() { |
| 9 | // Ensure small array literals start in specific element kind mode. |
| 10 | assertTrue(%HasFastSmiElements([])); |
| 11 | assertTrue(%HasFastSmiElements([1])); |
| 12 | assertTrue(%HasFastSmiElements([1,2])); |
| 13 | assertTrue(%HasFastDoubleElements([1.1])); |
| 14 | assertTrue(%HasFastDoubleElements([1.1,2])); |
| 15 | |
| 16 | var a = [1, 2, 3]; |
| 17 | if (warmup) { |
| 18 | // Transition elements kind during warmup... |
| 19 | assertTrue(%HasFastSmiElements(a)); |
| 20 | assertEquals(4, a.push(1.3)); |
| 21 | } |
| 22 | // ... and ensure that the information about transitioning is |
| 23 | // propagated to the next closure. |
| 24 | assertTrue(%HasFastDoubleElements(a)); |
| 25 | }; |
| 26 | if (optimize) %OptimizeFunctionOnNextCall(closure); |
| 27 | closure(); |
| 28 | } |
| 29 | |
| 30 | |
| 31 | function test() { |
| 32 | var warmup = true; |
| 33 | for (var i = 0; i < 3; i++) { |
| 34 | print("iter: " + i + ", warmup: "+ warmup); |
| 35 | literals_sharing_test(warmup, false); |
| 36 | warmup = false; |
| 37 | } |
| 38 | print("iter: " + i + ", opt: true"); |
| 39 | literals_sharing_test(warmup, true); |
| 40 | } |
| 41 | |
| 42 | |
| 43 | function stress_opt_test() {} |
| 44 | stress_opt_test(); |
| 45 | if (%GetOptimizationStatus(stress_opt_test) == 2) { |
| 46 | // This test is not suitable for --always-opt mode. |
| 47 | test(); |
| 48 | } |