17a74ddd3d
PR-URL: https://github.com/nodejs/node/pull/49639 Reviewed-By: Jiawen Geng <technicalcute@gmail.com> Reviewed-By: Rafael Gonzaga <rafael.nunu@hotmail.com> Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
24 lines
552 B
JavaScript
24 lines
552 B
JavaScript
// Copyright 2023 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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//
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// Flags: --allow-natives-syntax --maglev
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function f(value) {
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return value.x === 'abc';
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}
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let o1 = { x : 'abc' };
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let o2 = { y : 'no' };
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%PrepareFunctionForOptimization(f);
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f(o1);
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f(o2);
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f(4);
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// The feedback of `f` now contains 2 kNotFound maps (one for `o2`'s map, and
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// one for HeapNumber map).
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%OptimizeMaglevOnNextCall(f);
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assertEquals(f(4), false);
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assertOptimized(f);
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