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 24 description( 25 "This tests that speculation recovery of destructive additions on unboxed integers works." 26 ); 27 28 function 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 35 for (var i = 0; i < 100; ++i) { 36 destructiveAddForBoxedInteger({x:1}, 2, 3); 37 } 38 39 shouldBe("destructiveAddForBoxedInteger({x:1}, 2, 4)", "9"); 40 shouldBe("destructiveAddForBoxedInteger({x:2147483647}, 2, 4)", "2147483655"); 41 shouldBe("destructiveAddForBoxedInteger({x:2}, 2147483647, 4)", "4294967300"); 42 shouldBe("destructiveAddForBoxedInteger({x:2147483647}, 2147483647, 4)", "6442450945"); 43 shouldBe("destructiveAddForBoxedInteger({x:1}, 2, 2147483647)", "2147483652"); 44
