v8/test/mjsunit/regress/regress-crbug-903043.js

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// Copyright 2018 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Flags: --allow-natives-syntax
(function() {
function foo() {
const x = 1e-1;
return Object.is(-0, x * (-1e-308));
}
assertFalse(foo());
assertFalse(foo());
%OptimizeFunctionOnNextCall(foo);
assertFalse(foo());
})();
(function() {
function foo(x) {
return Object.is(-0, x * (-1e-308));
}
assertFalse(foo(1e-1));
assertFalse(foo(1e-1));
%OptimizeFunctionOnNextCall(foo);
assertFalse(foo(1e-1));
})();
(function() {
function foo(x) {
return Object.is(-0, x);
}
assertFalse(foo(1e-1 * (-1e-308)));
assertFalse(foo(1e-1 * (-1e-308)));
%OptimizeFunctionOnNextCall(foo);
assertFalse(foo(1e-1 * (-1e-308)));
})();