1f705b5034dc5bc422ac1019b591469a7d0534772mstarzinger@chromium.org// Copyright 2013 the V8 project authors. All rights reserved. 291efda9680c1eac04b6babfbf812d79b7df3747ajkummerow@chromium.org// Redistribution and use in source and binary forms, with or without 391efda9680c1eac04b6babfbf812d79b7df3747ajkummerow@chromium.org// modification, are permitted provided that the following conditions are 491efda9680c1eac04b6babfbf812d79b7df3747ajkummerow@chromium.org// met: 591efda9680c1eac04b6babfbf812d79b7df3747ajkummerow@chromium.org// 691efda9680c1eac04b6babfbf812d79b7df3747ajkummerow@chromium.org// * Redistributions of source code must retain the above copyright 791efda9680c1eac04b6babfbf812d79b7df3747ajkummerow@chromium.org// notice, this list of conditions and the following disclaimer. 891efda9680c1eac04b6babfbf812d79b7df3747ajkummerow@chromium.org// * Redistributions in binary form must reproduce the above 991efda9680c1eac04b6babfbf812d79b7df3747ajkummerow@chromium.org// copyright notice, this list of conditions and the following 1091efda9680c1eac04b6babfbf812d79b7df3747ajkummerow@chromium.org// disclaimer in the documentation and/or other materials provided 1191efda9680c1eac04b6babfbf812d79b7df3747ajkummerow@chromium.org// with the distribution. 1291efda9680c1eac04b6babfbf812d79b7df3747ajkummerow@chromium.org// * Neither the name of Google Inc. nor the names of its 1391efda9680c1eac04b6babfbf812d79b7df3747ajkummerow@chromium.org// contributors may be used to endorse or promote products derived 1491efda9680c1eac04b6babfbf812d79b7df3747ajkummerow@chromium.org// from this software without specific prior written permission. 1591efda9680c1eac04b6babfbf812d79b7df3747ajkummerow@chromium.org// 1691efda9680c1eac04b6babfbf812d79b7df3747ajkummerow@chromium.org// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 1791efda9680c1eac04b6babfbf812d79b7df3747ajkummerow@chromium.org// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 1891efda9680c1eac04b6babfbf812d79b7df3747ajkummerow@chromium.org// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 1991efda9680c1eac04b6babfbf812d79b7df3747ajkummerow@chromium.org// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 2091efda9680c1eac04b6babfbf812d79b7df3747ajkummerow@chromium.org// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 2191efda9680c1eac04b6babfbf812d79b7df3747ajkummerow@chromium.org// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 2291efda9680c1eac04b6babfbf812d79b7df3747ajkummerow@chromium.org// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 2391efda9680c1eac04b6babfbf812d79b7df3747ajkummerow@chromium.org// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 2491efda9680c1eac04b6babfbf812d79b7df3747ajkummerow@chromium.org// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 2591efda9680c1eac04b6babfbf812d79b7df3747ajkummerow@chromium.org// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 2691efda9680c1eac04b6babfbf812d79b7df3747ajkummerow@chromium.org// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 2791efda9680c1eac04b6babfbf812d79b7df3747ajkummerow@chromium.org 28f705b5034dc5bc422ac1019b591469a7d0534772mstarzinger@chromium.org// Flags: --expose_gc 2991efda9680c1eac04b6babfbf812d79b7df3747ajkummerow@chromium.org 30f705b5034dc5bc422ac1019b591469a7d0534772mstarzinger@chromium.orgp1 = { }; 31f705b5034dc5bc422ac1019b591469a7d0534772mstarzinger@chromium.orgp2 = { }; 32f705b5034dc5bc422ac1019b591469a7d0534772mstarzinger@chromium.orgp3 = { x : 1 }; 33f705b5034dc5bc422ac1019b591469a7d0534772mstarzinger@chromium.orgp2.__proto__ = p3 34f705b5034dc5bc422ac1019b591469a7d0534772mstarzinger@chromium.orgp1.__proto__ = p2 35f705b5034dc5bc422ac1019b591469a7d0534772mstarzinger@chromium.org 36f705b5034dc5bc422ac1019b591469a7d0534772mstarzinger@chromium.org// Normalize p1. 37f705b5034dc5bc422ac1019b591469a7d0534772mstarzinger@chromium.orgp1.z = 1 38f705b5034dc5bc422ac1019b591469a7d0534772mstarzinger@chromium.orgdelete p1.z 39f705b5034dc5bc422ac1019b591469a7d0534772mstarzinger@chromium.org 40f705b5034dc5bc422ac1019b591469a7d0534772mstarzinger@chromium.org// Make sure all objects are in old space. 41f705b5034dc5bc422ac1019b591469a7d0534772mstarzinger@chromium.orgfor (var i = 0; i < 10; i++) gc(); 42f705b5034dc5bc422ac1019b591469a7d0534772mstarzinger@chromium.org 43f705b5034dc5bc422ac1019b591469a7d0534772mstarzinger@chromium.orgfunction f2() { 44f705b5034dc5bc422ac1019b591469a7d0534772mstarzinger@chromium.org p2.x; 45f705b5034dc5bc422ac1019b591469a7d0534772mstarzinger@chromium.org} 46f705b5034dc5bc422ac1019b591469a7d0534772mstarzinger@chromium.org 47f705b5034dc5bc422ac1019b591469a7d0534772mstarzinger@chromium.orgfunction f1() { 48f705b5034dc5bc422ac1019b591469a7d0534772mstarzinger@chromium.org return p1.x; 4991efda9680c1eac04b6babfbf812d79b7df3747ajkummerow@chromium.org} 5091efda9680c1eac04b6babfbf812d79b7df3747ajkummerow@chromium.org 51f705b5034dc5bc422ac1019b591469a7d0534772mstarzinger@chromium.org// Create load stub in p2. 52f705b5034dc5bc422ac1019b591469a7d0534772mstarzinger@chromium.orgfor (var i = 0; i < 10; i++) f2(); 53f705b5034dc5bc422ac1019b591469a7d0534772mstarzinger@chromium.org 54f705b5034dc5bc422ac1019b591469a7d0534772mstarzinger@chromium.org// Create load stub in p2 for p1. 55f705b5034dc5bc422ac1019b591469a7d0534772mstarzinger@chromium.orgfor (var i = 0; i < 10; i++) f1(); 56f705b5034dc5bc422ac1019b591469a7d0534772mstarzinger@chromium.org 57f705b5034dc5bc422ac1019b591469a7d0534772mstarzinger@chromium.orgassertEquals(1, f1()); 58f705b5034dc5bc422ac1019b591469a7d0534772mstarzinger@chromium.org 59f705b5034dc5bc422ac1019b591469a7d0534772mstarzinger@chromium.orgp2.x = 2; 60f705b5034dc5bc422ac1019b591469a7d0534772mstarzinger@chromium.org 61f705b5034dc5bc422ac1019b591469a7d0534772mstarzinger@chromium.orgassertEquals(2, f1()); 62