21 lines
520 B
JavaScript
21 lines
520 B
JavaScript
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// Copyright 2015 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Flags: --allow-natives-syntax
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function bar(a) {
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var x = a[0];
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return x == undefined;
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}
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// Make the keyed load be polymorphic on holey smi and holey fast.
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bar([, 2, 3]);
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bar([, 'two', 'three']);
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bar([, 2, 3]);
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%OptimizeFunctionOnNextCall(bar);
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bar([, 2, 3]);
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// Verify that loading the hole doesn't cause deoptimization.
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assertOptimized(bar);
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