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 --noalways-opt 29 30function mul(a, b) { 31 return a * b; 32} 33 34 35mul(-1, 2); 36mul(-1, 2); 37%OptimizeFunctionOnNextCall(mul); 38assertEquals(-2, mul(-1, 2)); 39assertOptimized(mul); 40 41// Deopt on minus zero. 42assertEquals(-0, mul(-1, 0)); 43assertUnoptimized(mul); 44 45 46function mul2(a, b) { 47 return a * b; 48} 49 50mul2(-1, 2); 51mul2(-1, 2); 52%OptimizeFunctionOnNextCall(mul2); 53 54// 2^30 is a smi boundary on arm and ia32. 55var two_30 = 1 << 30; 56// 2^31 is a smi boundary on x64. 57var two_31 = 2 * two_30; 58 59if (%IsValidSmi(two_31)) { 60 // Deopt on two_31 on x64. 61 assertEquals(two_31, mul2(-two_31, -1)); 62 assertUnoptimized(mul2); 63} else { 64 // Deopt on two_30 on ia32. 65 assertEquals(two_30, mul2(-two_30, -1)); 66 assertUnoptimized(mul2); 67} 68