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>
38 lines
1.0 KiB
JavaScript
38 lines
1.0 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 --turbolev --turbofan
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function g(b) {
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if (b) {
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throw_before_this_function_is_not_defined();
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}
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}
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%NeverOptimizeFunction(g);
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function foo(n, r, b) {
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let v = n >>> r; // {v} here has Uint32 representation.
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try {
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g(b);
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v = 45;
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g(true);
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} catch(e) {
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// {v} here is a Phi with a Uint32 and an Int32 input.
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return v + 3;
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}
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}
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%PrepareFunctionForOptimization(foo);
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assertEquals(48, foo(23, 3, false));
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assertEquals(5, foo(23, 3, true));
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assertEquals(48, foo(-1478558121, 0, false));
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assertEquals(2816409178, foo(-1478558121, 0, true));
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%OptimizeFunctionOnNextCall(foo);
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assertEquals(48, foo(23, 3, false));
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assertEquals(5, foo(23, 3, true));
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// Making sure that negative numbers are turned into positive ones by `>>> 0`.
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assertEquals(48, foo(-1478558121, 0, false));
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assertEquals(2816409178, foo(-1478558121, 0, true));
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