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| 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 |
| 41 function f() { |
| 42 var x = non_int32(); // Not a constant. |
| 43 var y = hidden_smi(); // Not a constant. |
| 44 var z = hidden_int32(); |
| 45 assertEquals(46512102 & 2600822924, 46512102 & x, "1"); |
| 46 assertEquals(1600822924 & 2600822924, 1600822924 & x, "2"); |
| 47 assertEquals(2600822924 & 2600822924, 2600822924 & x, "3"); |
| 48 assertEquals(46512102 & 46512102, 46512102 & y, "4"); |
| 49 assertEquals(1600822924 & 46512102, 1600822924 & y, "5"); |
| 50 assertEquals(2600822924 & 46512102, 2600822924 & y, "6"); |
| 51 assertEquals(46512102 & 1600822924, 46512102 & z, "7"); |
| 52 assertEquals(1600822924 & 1600822924, 1600822924 & z, "8"); |
| 53 assertEquals(2600822924 & 1600822924, 2600822924 & z, "9"); |
| 54 assertEquals(46512102 & 2600822924, y & x, "10"); |
| 55 assertEquals(1600822924 & 2600822924, z & x, "11"); |
| 56 |
| 57 assertEquals(46512102 & 2600822924, x & 46512102, "1rev"); |
| 58 assertEquals(1600822924 & 2600822924, x & 1600822924, "2rev"); |
| 59 assertEquals(2600822924 & 2600822924, x & 2600822924, "3rev"); |
| 60 assertEquals(46512102 & 46512102, y & 46512102, "4rev"); |
| 61 assertEquals(1600822924 & 46512102, y & 1600822924, "5rev"); |
| 62 assertEquals(2600822924 & 46512102, y & 2600822924, "6rev"); |
| 63 assertEquals(46512102 & 1600822924, z & 46512102, "7rev"); |
| 64 assertEquals(1600822924 & 1600822924, z & 1600822924, "8rev"); |
| 65 assertEquals(2600822924 & 1600822924, z & 2600822924, "9rev"); |
| 66 assertEquals(46512102 & 2600822924, x & y, "10rev"); |
| 67 assertEquals(1600822924 & 2600822924, x & z, "11rev"); |
| 68 |
| 69 assertEquals(2600822924 & 2600822924, x & x, "xx"); |
| 70 assertEquals(y, y & y, "yy"); |
| 71 assertEquals(z, z & z, "zz"); |
| 72 } |
| 73 |
| 74 |
| 75 for (var i = 0; i < 5; i++) { |
| 76 f(); |
| 77 } |
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