1b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// Copyright 2013 the V8 project authors. All rights reserved. 2b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved. 3b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// 4b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// Redistribution and use in source and binary forms, with or without 5b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// modification, are permitted provided that the following conditions 6b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// are met: 7b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// 1. Redistributions of source code must retain the above copyright 8b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// notice, this list of conditions and the following disclaimer. 9b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// 2. Redistributions in binary form must reproduce the above copyright 10b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// notice, this list of conditions and the following disclaimer in the 11b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// documentation and/or other materials provided with the distribution. 12b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// 13b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY 14b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 15b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 16b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY 17b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 18b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 19b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 20b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 21b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 22b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 23b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 24b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochdescription( 25b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch"This tests that speculation recovery of destructive additions on unboxed integers works." 26b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch); 27b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 28b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochfunction destructiveAddForBoxedInteger(a,b,c) { 29b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch var a_ = a.x; 30b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch var d = a_ + b; 31b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return c + d + b; 32b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 33b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 34b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// warm-up foo to be integer 35b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochfor (var i = 0; i < 100; ++i) { 36b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch destructiveAddForBoxedInteger({x:1}, 2, 3); 37b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 38b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 39b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochshouldBe("destructiveAddForBoxedInteger({x:1}, 2, 4)", "9"); 40b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochshouldBe("destructiveAddForBoxedInteger({x:2147483647}, 2, 4)", "2147483655"); 41b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochshouldBe("destructiveAddForBoxedInteger({x:2}, 2147483647, 4)", "4294967300"); 42b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochshouldBe("destructiveAddForBoxedInteger({x:2147483647}, 2147483647, 4)", "6442450945"); 43b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochshouldBe("destructiveAddForBoxedInteger({x:1}, 2, 2147483647)", "2147483652"); 44