1// 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"This tests that speculation recovery of destructive additions on unboxed integers works." 26); 27 28function destructiveAddForBoxedInteger(a,b,c) { 29 var a_ = a.x; 30 var d = a_ + b; 31 return c + d + b; 32} 33 34// warm-up foo to be integer 35for (var i = 0; i < 100; ++i) { 36 destructiveAddForBoxedInteger({x:1}, 2, 3); 37} 38 39shouldBe("destructiveAddForBoxedInteger({x:1}, 2, 4)", "9"); 40shouldBe("destructiveAddForBoxedInteger({x:2147483647}, 2, 4)", "2147483655"); 41shouldBe("destructiveAddForBoxedInteger({x:2}, 2147483647, 4)", "4294967300"); 42shouldBe("destructiveAddForBoxedInteger({x:2147483647}, 2147483647, 4)", "6442450945"); 43shouldBe("destructiveAddForBoxedInteger({x:1}, 2, 2147483647)", "2147483652"); 44