1 // Copyright 2010 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 function non_int32() { 29 return 2600822924; // It's not a signed Int32. 30 } 31 32 function hidden_smi() { 33 return 46512102; // It's a Smi 34 } 35 36 function hidden_int32() { 37 return 1600822924; // It's a signed Int32. 38 } 39 40 function f() { 41 var x = non_int32(); // Not a constant. 42 var y = hidden_smi(); // Not a constant. 43 var z = hidden_int32(); 44 assertEquals(46512102 & 2600822924, 46512102 & x, "1"); 45 assertEquals(1600822924 & 2600822924, 1600822924 & x, "2"); 46 assertEquals(2600822924 & 2600822924, 2600822924 & x, "3"); 47 assertEquals(46512102 & 46512102, 46512102 & y, "4"); 48 assertEquals(1600822924 & 46512102, 1600822924 & y, "5"); 49 assertEquals(2600822924 & 46512102, 2600822924 & y, "6"); 50 assertEquals(46512102 & 1600822924, 46512102 & z, "7"); 51 assertEquals(1600822924 & 1600822924, 1600822924 & z, "8"); 52 assertEquals(2600822924 & 1600822924, 2600822924 & z, "9"); 53 assertEquals(46512102 & 2600822924, y & x, "10"); 54 assertEquals(1600822924 & 2600822924, z & x, "11"); 55 56 assertEquals(46512102 & 2600822924, x & 46512102, "1rev"); 57 assertEquals(1600822924 & 2600822924, x & 1600822924, "2rev"); 58 assertEquals(2600822924 & 2600822924, x & 2600822924, "3rev"); 59 assertEquals(46512102 & 46512102, y & 46512102, "4rev"); 60 assertEquals(1600822924 & 46512102, y & 1600822924, "5rev"); 61 assertEquals(2600822924 & 46512102, y & 2600822924, "6rev"); 62 assertEquals(46512102 & 1600822924, z & 46512102, "7rev"); 63 assertEquals(1600822924 & 1600822924, z & 1600822924, "8rev"); 64 assertEquals(2600822924 & 1600822924, z & 2600822924, "9rev"); 65 assertEquals(46512102 & 2600822924, x & y, "10rev"); 66 assertEquals(1600822924 & 2600822924, x & z, "11rev"); 67 68 assertEquals((46512102 & -0x20123456) | 1, (y & -0x20123456) | 1, "12"); 69 assertEquals((1600822924 & -0x20123456) | 1, (z & -0x20123456) | 1, "13"); 70 assertEquals((2600822924 & -0x20123456) | 1, (x & -0x20123456) | 1, "14"); 71 assertEquals((46512102 & -0x20123456) | 1, (-0x20123456 & y) | 1, "12rev"); 72 assertEquals((1600822924 & -0x20123456) | 1, (-0x20123456 & z) | 1, "13rev"); 73 assertEquals((2600822924 & -0x20123456) | 1, (-0x20123456 & x) | 1, "14rev"); 74 75 assertEquals(2600822924 & 2600822924, x & x, "xx"); 76 assertEquals(y, y & y, "yy"); 77 assertEquals(z, z & z, "zz"); 78 } 79 80 81 for (var i = 0; i < 5; i++) { 82 f(); 83 } 84
