| 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 bar(a) { |
| 8 | var x = a[0]; |
| 9 | return x == undefined; |
| 10 | } |
| 11 | |
| 12 | // Make the keyed load be polymorphic on holey smi and holey fast. |
| 13 | bar([, 2, 3]); |
| 14 | bar([, 'two', 'three']); |
| 15 | bar([, 2, 3]); |
| 16 | |
| 17 | %OptimizeFunctionOnNextCall(bar); |
| 18 | bar([, 2, 3]); |
| 19 | // Verify that loading the hole doesn't cause deoptimization. |
| 20 | assertOptimized(bar); |