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PR-URL: https://github.com/nodejs/node/pull/44741 Fixes: https://github.com/nodejs/node/issues/44650 Fixes: https://github.com/nodejs/node/issues/37472 Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl> Reviewed-By: Jiawen Geng <technicalcute@gmail.com> Reviewed-By: James M Snell <jasnell@gmail.com>
21 lines
706 B
JavaScript
21 lines
706 B
JavaScript
// Copyright 2022 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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// Ensure we could reduce reference equal with boolean input.
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// When the inputs are all boolean with true constant, we could
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// reduce to the input. And when the inputs are all boolean with
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// false constant, we could reduce to the input with BooleanNot.
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function foo(x, y) {
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const v = (x === y);
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%TurbofanStaticAssert(((v === true) === v));
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%TurbofanStaticAssert((!(v === false) === v));
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};
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%PrepareFunctionForOptimization(foo);
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foo(1, 2);
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foo(2, 3);
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%OptimizeFunctionOnNextCall(foo);
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foo(3, 4);
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