1// Copyright 2013 the V8 project authors. All rights reserved. 2// Redistribution and use in source and binary forms, with or without 3// modification, are permitted provided that the following conditions are 4// met: 5// 6// * Redistributions of source code must retain the above copyright 7// notice, this list of conditions and the following disclaimer. 8// * Redistributions in binary form must reproduce the above 9// copyright notice, this list of conditions and the following 10// disclaimer in the documentation and/or other materials provided 11// with the distribution. 12// * Neither the name of Google Inc. nor the names of its 13// contributors may be used to endorse or promote products derived 14// from this software without specific prior written permission. 15// 16// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 28// Flags: --allow-natives-syntax --no-fold-constants 29 30function add(x, y) { 31 return x + y; 32} 33 34assertEquals(0, add(0, 0)); 35assertEquals(0, add(0, 0)); 36%OptimizeFunctionOnNextCall(add); 37assertEquals(-0, add(-0, -0)); 38 39 40function testsin() { 41 assertEquals(-0, Math.sin(-0)); 42} 43 44testsin(); 45testsin(); 46%OptimizeFunctionOnNextCall(testsin); 47testsin(); 48 49 50function testfloor() { 51 assertEquals(-0, Math.floor(-0)); 52} 53 54testfloor(); 55testfloor(); 56%OptimizeFunctionOnNextCall(testfloor); 57testfloor(); 58 59 60var double_one = Math.cos(0); 61 62function add(a, b) { 63 return a + b; 64} 65 66assertEquals(1, 1/add(double_one, 0)); 67assertEquals(1, 1/add(0, double_one)); 68%OptimizeFunctionOnNextCall(add); 69assertEquals(1/(-0 + -0), 1/add(-0, -0)); 70