| // Copyright 2015 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. | |
| // Flags: --allow-natives-syntax | |
| function bar(a) { | |
| var x = a[0]; | |
| return x == undefined; | |
| } | |
| // Make the keyed load be polymorphic on holey smi and holey fast. | |
| bar([, 2, 3]); | |
| bar([, 'two', 'three']); | |
| bar([, 2, 3]); | |
| %OptimizeFunctionOnNextCall(bar); | |
| bar([, 2, 3]); | |
| // Verify that loading the hole doesn't cause deoptimization. | |
| assertOptimized(bar); |