Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 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 | // Test postfix count operations with smis. |
| 29 | |
| 30 | function f1() { var x = 0x3fffffff; x++; return x; } |
| 31 | assertEquals(0x40000000, f1()); |
| 32 | |
| 33 | |
| 34 | function f2() { var x = -0x40000000; x--; return x; } |
| 35 | assertEquals(-0x40000001, f2()); |
| 36 | |
| 37 | |
| 38 | function f3(x) { x = x & 0x3fffffff; x++; return x; } |
| 39 | assertEquals(0x40000000, f3(0x3fffffff)); |
| 40 | |
| 41 | |
| 42 | function f4() { |
| 43 | var i; |
| 44 | for (i = 0x3ffffffe; i <= 0x3fffffff; i++) {} |
| 45 | return i; |
| 46 | } |
| 47 | assertEquals(0x40000000, f4()); |
| 48 | |
| 49 | |
| 50 | function f5() { |
| 51 | var i; |
| 52 | for (i = -0x3fffffff; i >= -0x40000000; i--) {} |
| 53 | return i; |
| 54 | } |
| 55 | assertEquals(-0x40000001, f5()); |
| 56 | |
| 57 | |
| 58 | function f6() { var x = 0x3fffffff; x++; return x+1; } |
| 59 | assertEquals(0x40000001, f6()); |
| 60 | |
| 61 | |
| 62 | function f7() { |
| 63 | var i; |
| 64 | for (i = 0x3ffffffd; i <= 0x3ffffffe; i++) {} |
| 65 | i++; i = i + 1; |
| 66 | return i; |
| 67 | } |
| 68 | assertEquals(0x40000001, f7()); |
| 69 | |
| 70 | |
| 71 | function f8() { |
| 72 | var i; |
| 73 | for (i = 0x3ffffffd; i <= 0x3fffffff; i++) {} |
| 74 | i++; i++; |
| 75 | return i; |
| 76 | } |
| 77 | assertEquals(0x40000002, f8()); |
| 78 | |
| 79 | |
| 80 | function f9() { |
| 81 | var i; |
| 82 | for (i = 0; i < 42; i++) { |
| 83 | return 42; |
| 84 | } |
| 85 | } |
| 86 | assertEquals(42, f9()); |
| 87 | |
| 88 | |
| 89 | function f10(x) { |
| 90 | for (x = 0; x < 4; x++) {} |
| 91 | } |
| 92 | f10(42); |