1bee51999422c0eeaae85ed99b5c0bd4126510ff1danno@chromium.org// Copyright 2013 the V8 project authors. All rights reserved. 2bee51999422c0eeaae85ed99b5c0bd4126510ff1danno@chromium.org// Redistribution and use in source and binary forms, with or without 3bee51999422c0eeaae85ed99b5c0bd4126510ff1danno@chromium.org// modification, are permitted provided that the following conditions are 4bee51999422c0eeaae85ed99b5c0bd4126510ff1danno@chromium.org// met: 5bee51999422c0eeaae85ed99b5c0bd4126510ff1danno@chromium.org// 6bee51999422c0eeaae85ed99b5c0bd4126510ff1danno@chromium.org// * Redistributions of source code must retain the above copyright 7bee51999422c0eeaae85ed99b5c0bd4126510ff1danno@chromium.org// notice, this list of conditions and the following disclaimer. 8bee51999422c0eeaae85ed99b5c0bd4126510ff1danno@chromium.org// * Redistributions in binary form must reproduce the above 9bee51999422c0eeaae85ed99b5c0bd4126510ff1danno@chromium.org// copyright notice, this list of conditions and the following 10bee51999422c0eeaae85ed99b5c0bd4126510ff1danno@chromium.org// disclaimer in the documentation and/or other materials provided 11bee51999422c0eeaae85ed99b5c0bd4126510ff1danno@chromium.org// with the distribution. 12bee51999422c0eeaae85ed99b5c0bd4126510ff1danno@chromium.org// * Neither the name of Google Inc. nor the names of its 13bee51999422c0eeaae85ed99b5c0bd4126510ff1danno@chromium.org// contributors may be used to endorse or promote products derived 14bee51999422c0eeaae85ed99b5c0bd4126510ff1danno@chromium.org// from this software without specific prior written permission. 15bee51999422c0eeaae85ed99b5c0bd4126510ff1danno@chromium.org// 16bee51999422c0eeaae85ed99b5c0bd4126510ff1danno@chromium.org// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17bee51999422c0eeaae85ed99b5c0bd4126510ff1danno@chromium.org// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18bee51999422c0eeaae85ed99b5c0bd4126510ff1danno@chromium.org// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19bee51999422c0eeaae85ed99b5c0bd4126510ff1danno@chromium.org// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20bee51999422c0eeaae85ed99b5c0bd4126510ff1danno@chromium.org// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21bee51999422c0eeaae85ed99b5c0bd4126510ff1danno@chromium.org// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22bee51999422c0eeaae85ed99b5c0bd4126510ff1danno@chromium.org// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23bee51999422c0eeaae85ed99b5c0bd4126510ff1danno@chromium.org// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24bee51999422c0eeaae85ed99b5c0bd4126510ff1danno@chromium.org// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25bee51999422c0eeaae85ed99b5c0bd4126510ff1danno@chromium.org// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26bee51999422c0eeaae85ed99b5c0bd4126510ff1danno@chromium.org// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27bee51999422c0eeaae85ed99b5c0bd4126510ff1danno@chromium.org 28bee51999422c0eeaae85ed99b5c0bd4126510ff1danno@chromium.org// Flags: --allow-natives-syntax 29bee51999422c0eeaae85ed99b5c0bd4126510ff1danno@chromium.org 30bee51999422c0eeaae85ed99b5c0bd4126510ff1danno@chromium.orgfunction ar() { 31bee51999422c0eeaae85ed99b5c0bd4126510ff1danno@chromium.org var r = undefined; 32bee51999422c0eeaae85ed99b5c0bd4126510ff1danno@chromium.org var f = 1; 33bee51999422c0eeaae85ed99b5c0bd4126510ff1danno@chromium.org while (f--) { 34bee51999422c0eeaae85ed99b5c0bd4126510ff1danno@chromium.org r = (typeof r === 'undefined') ? 0.1 : r; 35bee51999422c0eeaae85ed99b5c0bd4126510ff1danno@chromium.org }; 36bee51999422c0eeaae85ed99b5c0bd4126510ff1danno@chromium.org return (r - r); 37bee51999422c0eeaae85ed99b5c0bd4126510ff1danno@chromium.org} 38bee51999422c0eeaae85ed99b5c0bd4126510ff1danno@chromium.org 39bee51999422c0eeaae85ed99b5c0bd4126510ff1danno@chromium.orgassertEquals(0, ar()); 40bee51999422c0eeaae85ed99b5c0bd4126510ff1danno@chromium.orgassertEquals(0, ar()); 41bee51999422c0eeaae85ed99b5c0bd4126510ff1danno@chromium.org%OptimizeFunctionOnNextCall(ar); 42bee51999422c0eeaae85ed99b5c0bd4126510ff1danno@chromium.orgassertEquals(0, ar()); 43bee51999422c0eeaae85ed99b5c0bd4126510ff1danno@chromium.org 44bee51999422c0eeaae85ed99b5c0bd4126510ff1danno@chromium.orgfunction ar2() { 45bee51999422c0eeaae85ed99b5c0bd4126510ff1danno@chromium.org var r = undefined; 46bee51999422c0eeaae85ed99b5c0bd4126510ff1danno@chromium.org var f = 1; 47bee51999422c0eeaae85ed99b5c0bd4126510ff1danno@chromium.org while (f--) { 48bee51999422c0eeaae85ed99b5c0bd4126510ff1danno@chromium.org r = r === undefined ? 0.1 : r; 49bee51999422c0eeaae85ed99b5c0bd4126510ff1danno@chromium.org }; 50bee51999422c0eeaae85ed99b5c0bd4126510ff1danno@chromium.org return (r - r); 51bee51999422c0eeaae85ed99b5c0bd4126510ff1danno@chromium.org} 52bee51999422c0eeaae85ed99b5c0bd4126510ff1danno@chromium.org 53bee51999422c0eeaae85ed99b5c0bd4126510ff1danno@chromium.orgassertEquals(0, ar2()); 54bee51999422c0eeaae85ed99b5c0bd4126510ff1danno@chromium.orgassertEquals(0, ar2()); 55bee51999422c0eeaae85ed99b5c0bd4126510ff1danno@chromium.org%OptimizeFunctionOnNextCall(ar2); 56bee51999422c0eeaae85ed99b5c0bd4126510ff1danno@chromium.orgassertEquals(0, ar2()); 57