918fe04351
PR-URL: https://github.com/nodejs/node/pull/58070 Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com> Reviewed-By: Darshan Sen <raisinten@gmail.com> Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com> Reviewed-By: Rafael Gonzaga <rafael.nunu@hotmail.com>
26 lines
827 B
JavaScript
26 lines
827 B
JavaScript
// Copyright 2024 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 --turbolev --turbofan
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// An unconditional deopt will be inserted after {o} has been created, but
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// before it is initialized with "arg + 1.5" and "arg + 41.5". These 2 fields
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// are thus initialized with the Float64 hole. If {o} is escape-analyzed away,
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// then the deopt state will have 2 identical HeapNumbers as input. These
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// shouldn't be GVNed, because they are mutable.
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function foo(arg) {
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var o = {
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x: arg + 1.5,
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y: arg + 41.5,
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};
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return o.x + o.y;
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}
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%PrepareFunctionForOptimization(foo);
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assertEquals(NaN, foo());
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assertEquals(NaN, foo());
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%OptimizeFunctionOnNextCall(foo);
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assertEquals(45, foo(1));
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