blob: 07b8e3442aca7bb2b536a224628722d3a6f55977 [file] [log] [blame]
Ben Murdochb8a8cc12014-11-26 15:28:44 +00001// Copyright 2013 the V8 project authors. All rights reserved.
2// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
3//
4// Redistribution and use in source and binary forms, with or without
5// modification, are permitted provided that the following conditions
6// are met:
7// 1. Redistributions of source code must retain the above copyright
8// notice, this list of conditions and the following disclaimer.
9// 2. Redistributions in binary form must reproduce the above copyright
10// notice, this list of conditions and the following disclaimer in the
11// documentation and/or other materials provided with the distribution.
12//
13// THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
14// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
15// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
16// DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
17// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
18// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
19// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
20// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
21// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
22// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
23
24description(
25"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."
26);
27
28function foo(a) {
29 var x = a;
30 // Make sure that this is the loop where we do OSR entry.
31 for (var i = 0; i < 100000; ++i)
32 x += 1;
33 // Now trigger overflow that is so severe that the floating point result would be different than the bigint result.
34 for (var i = 0; i < 160097152; ++i)
35 x += 2147483647;
36 return x | 0;
37}
38
39shouldBe("foo(0)", "-4094336");