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// Copyright 2017 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
// Ensure that the typing rule for Math.ceil deals correctly with
// inputs in the range (-1.0,0.0), which are mapped to -0.
(function() {
function foo(x) {
// Arrange x such that TurboFan infers type PlainNumber \/ NaN.
x = +x;
x = Math.abs(x) - 1.0;
return Object.is(-0, Math.ceil(x));
}
%PrepareFunctionForOptimization(foo);
assertFalse(foo(1.5));
assertTrue(foo(0.5));
%OptimizeFunctionOnNextCall(foo);
assertFalse(foo(1.5));
assertTrue(foo(0.5));
})();
// Ensure that the typing rule for Math.ceil deals correctly with
// NaN inputs, which are mapped to NaN.
(function() {
function foo(x) {
// Arrange x such that TurboFan infers type PlainNumber \/ NaN.
x = +x;
x = Math.abs(x) - 1.0;
return Object.is(NaN, Math.ceil(x));
}
%PrepareFunctionForOptimization(foo);
assertFalse(foo(1.5));
assertTrue(foo(NaN));
%OptimizeFunctionOnNextCall(foo);
assertFalse(foo(1.5));
assertTrue(foo(NaN));
})();
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