5ab3140dfb
PR-URL: https://github.com/nodejs/node/pull/54536 Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com> Reviewed-By: Jiawen Geng <technicalcute@gmail.com> Reviewed-By: Marco Ippolito <marcoippolito54@gmail.com> Reviewed-By: Richard Lau <rlau@redhat.com>
37 lines
1.2 KiB
JavaScript
37 lines
1.2 KiB
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 --turbofan --no-always-turbofan
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function testThrowsNoDeopt(fn) {
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%PrepareFunctionForOptimization(fn);
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for (let i = 0; i < 5; i++) assertThrows(fn, TypeError);
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%OptimizeFunctionOnNextCall(fn);
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assertThrows(fn, TypeError);
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// Assert that the function is still optimized, i.e. no deopt happened when
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// calling it.
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assertOptimized(fn);
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}
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function testNoDeopt(fn, expected) {
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%PrepareFunctionForOptimization(fn);
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for (let i = 0; i < 5; i++) fn();
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%OptimizeFunctionOnNextCall(fn);
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assertEquals(expected, fn());
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assertOptimized(fn);
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}
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let symbol = Symbol("test");
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testThrowsNoDeopt(() => 2 < symbol);
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testThrowsNoDeopt(() => 2 > symbol);
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testThrowsNoDeopt(() => 2 <= symbol);
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testThrowsNoDeopt(() => 2 >= symbol);
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testNoDeopt(() => 2 == symbol, false);
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let invalidValueOf = {valueOf: () => +2n};
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testThrowsNoDeopt(() => 2 < invalidValueOf);
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testThrowsNoDeopt(() => 2 > invalidValueOf);
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testThrowsNoDeopt(() => 2 <= invalidValueOf);
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testThrowsNoDeopt(() => 2 >= invalidValueOf);
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testThrowsNoDeopt(() => 2 == invalidValueOf);
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