29 lines
475 B
JavaScript
29 lines
475 B
JavaScript
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// Copyright 2016 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() {
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try {
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o;
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} catch (e) {
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return e;
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}
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return 0;
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}
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function deopt() {
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%DeoptimizeFunction(f);
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throw 42;
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}
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%NeverOptimizeFunction(deopt);
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this.__defineGetter__("o", deopt );
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f();
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f();
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%OptimizeFunctionOnNextCall(f);
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assertEquals(42, f());
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