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f579e11940
PR-URL: https://github.com/nodejs/node/pull/26685 Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Michaël Zasso <targos@protonmail.com> Reviewed-By: Refael Ackermann <refack@gmail.com>
32 lines
686 B
JavaScript
32 lines
686 B
JavaScript
// 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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var o = {v:1};
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var deopt = false;
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Object.defineProperty(o, "x", {
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get: function() {
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if (deopt) %DeoptimizeFunction(foo);
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return 1;
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}
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});
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function bar(x, y, z) {
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return x + z;
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}
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function foo(o, x) {
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return bar(1, (o[x], 2), 3);
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}
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%PrepareFunctionForOptimization(foo);
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assertEquals(4, foo(o, "v"));
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assertEquals(4, foo(o, "v"));
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assertEquals(4, foo(o, "x"));
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assertEquals(4, foo(o, "x"));
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%OptimizeFunctionOnNextCall(foo);
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deopt = true;
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assertEquals(4, foo(o, "x"));
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