20 lines
431 B
JavaScript
20 lines
431 B
JavaScript
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// Copyright 2017 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 f(deopt) {
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let array = [42];
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let it = array[Symbol.iterator]();
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if (deopt) {
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%_DeoptimizeNow();
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return it.next().value;
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}
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}
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f(false);
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f(false);
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%OptimizeFunctionOnNextCall(f);
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assertEquals(f(true), 42);
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