| // 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 |
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| // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| description( |
| "Tests that overflowing an integer in a loop and then only using it in an integer context produces a result that complies with double arithmetic." |
| ); |
| |
| function foo(a) { |
| var x = a; |
| // Make sure that this is the loop where we do OSR entry. |
| for (var i = 0; i < 100000; ++i) |
| x += 1; |
| // Now trigger overflow that is so severe that the floating point result would be different than the bigint result. |
| for (var i = 0; i < 160097152; ++i) |
| x += 2147483647; |
| return x | 0; |
| } |
| |
| shouldBe("foo(0)", "-4094336"); |