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PR-URL: https://github.com/nodejs/node/pull/28918 Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl> Reviewed-By: Jiawen Geng <technicalcute@gmail.com> Reviewed-By: Rich Trott <rtrott@gmail.com>
26 lines
636 B
JavaScript
26 lines
636 B
JavaScript
// Copyright 2019 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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const array = [42, 2.1]; // non-stable map (PACKED_DOUBLE)
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let b = false;
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function f() {
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if (b) array[100000] = 4.2; // go to dictionary mode
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return 42;
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};
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%NeverOptimizeFunction(f);
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function includes() {
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return array.includes(f());
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};
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%PrepareFunctionForOptimization(includes);
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assertTrue(includes());
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assertTrue(includes());
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%OptimizeFunctionOnNextCall(includes);
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assertTrue(includes());
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b = true;
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assertTrue(includes());
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