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-use-osr 29 30 function foo_smi(a, b) { 31 var result = a * b; 32 result += a * 35; 33 result += a * -1; 34 result += a * 1; 35 result += a * 0; 36 return result * a; 37 } 38 39 function foo_int(a, b) { 40 var result = a * b; 41 result += a * 35; 42 result += a * -1; 43 result += a * 1; 44 result += a * 0; 45 return result * a; 46 } 47 48 foo_smi(10, 5); 49 var r1 = foo_smi(10, 5); 50 %OptimizeFunctionOnNextCall(foo_smi); 51 var r2 = foo_smi(10, 5); 52 53 assertEquals(r1, r2); 54 55 foo_int(10, 21474800); 56 var r3 = foo_int(10, 21474800); 57 %OptimizeFunctionOnNextCall(foo_int); 58 var r4 = foo_int(10, 21474800); 59 60 assertEquals(r3, r4); 61 62 // Check overflow with -1 constant. 63 function foo2(value) { 64 return value * -1; 65 } 66 67 foo2(-2147483600); 68 foo2(-2147483600); 69 %OptimizeFunctionOnNextCall(foo2); 70 assertEquals(2147483648, foo2(-2147483648)); 71
