// Copyright 2013 the V8 project authors. All rights reserved. // Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions // are met: // 1. Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // 2. Redistributions in binary form must reproduce the above copyright // notice, this list of conditions and the following disclaimer in the // documentation and/or other materials provided with the distribution. // // THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY // EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED // WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE // DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY // DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES // (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; // LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON // ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. description( "Tests that if we have a tower of large numerical constants being added to each other, the DFG knows that a sufficiently large tower may produce a large enough value that overflow check elimination must be careful." ); function foo(a, b) { return (a + b + 281474976710655 + 281474976710655 + 281474976710655 + 281474976710655 + 281474976710655 + 281474976710655 + 281474976710655 + 281474976710655 + 281474976710655 + 281474976710655 + 281474976710655 + 281474976710655 + 281474976710655 + 281474976710655 + 281474976710655 + 281474976710655 + 281474976710655 + 281474976710655 + 281474976710655 + 281474976710655 + 281474976710655 + 281474976710655 + 281474976710655 + 281474976710655 + 281474976710655 + 281474976710655 + 281474976710655 + 281474976710655 + 281474976710655 + 281474976710655 + 281474976710655 + 281474976710655 + 30) | 0; } function bar(a, b, o) { eval(""); // Prevent this function from being opt compiled. return foo(a, b, o); } var warmup = 200; for (var i = 0; i < warmup + 1; ++i) { var a, b, c; var expected; if (i < warmup) { a = 1; b = 2; expected = 0; } else { a = 2147483645; b = 2147483644; expected = -10; } shouldBe("bar(" + a + ", " + b + ")", "" + expected); }