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6cdd310275
PR-URL: https://github.com/nodejs/node/pull/38990 Reviewed-By: Jiawen Geng <technicalcute@gmail.com> Reviewed-By: Matteo Collina <matteo.collina@gmail.com> Reviewed-By: Robert Nagy <ronagy@icloud.com> Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
57 lines
1.3 KiB
JavaScript
57 lines
1.3 KiB
JavaScript
// Copyright 2021 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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(function() {
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const arr = new Uint32Array([2**31]);
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function foo() {
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return (arr[0] ^ 0) + 1;
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}
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%PrepareFunctionForOptimization(foo);
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assertEquals(-(2**31) + 1, foo());
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%OptimizeFunctionOnNextCall(foo);
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assertEquals(-(2**31) + 1, foo());
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})();
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// The remaining tests already passed without the bugfix.
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(function() {
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const arr = new Uint16Array([2**15]);
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function foo() {
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return (arr[0] ^ 0) + 1;
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}
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%PrepareFunctionForOptimization(foo);
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assertEquals(2**15 + 1, foo());
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%OptimizeFunctionOnNextCall(foo);
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assertEquals(2**15 + 1, foo());
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})();
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(function() {
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const arr = new Uint8Array([2**7]);
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function foo() {
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return (arr[0] ^ 0) + 1;
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}
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%PrepareFunctionForOptimization(foo);
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assertEquals(2**7 + 1, foo());
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%OptimizeFunctionOnNextCall(foo);
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assertEquals(2**7 + 1, foo());
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})();
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(function() {
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const arr = new Int32Array([-(2**31)]);
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function foo() {
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return (arr[0] >>> 0) + 1;
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}
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%PrepareFunctionForOptimization(foo);
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assertEquals(2**31 + 1, foo());
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%OptimizeFunctionOnNextCall(foo);
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assertEquals(2**31 + 1, foo());
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})();
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