| Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1 | // Copyright 2012 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 |
| 29 | |
| 30 | function RunOneTruncationTest(a, b) { |
| 31 | var temp = a | 0; |
| 32 | assertEquals(b, temp); |
| 33 | } |
| 34 | |
| 35 | function RunAllTruncationTests() { |
| 36 | RunOneTruncationTest(0, 0); |
| 37 | RunOneTruncationTest(0.5, 0); |
| 38 | RunOneTruncationTest(-0.5, 0); |
| 39 | RunOneTruncationTest(1.5, 1); |
| 40 | RunOneTruncationTest(-1.5, -1); |
| 41 | RunOneTruncationTest(5.5, 5); |
| 42 | RunOneTruncationTest(-5.0, -5); |
| 43 | RunOneTruncationTest(NaN, 0); |
| 44 | RunOneTruncationTest(Infinity, 0); |
| 45 | RunOneTruncationTest(-NaN, 0); |
| 46 | RunOneTruncationTest(-Infinity, 0); |
| 47 | |
| 48 | RunOneTruncationTest(4.5036e+15, 0x1635E000); |
| 49 | RunOneTruncationTest(-4.5036e+15, -372629504); |
| 50 | |
| 51 | RunOneTruncationTest(4503603922337791.0, -1); |
| 52 | RunOneTruncationTest(-4503603922337791.0, 1); |
| 53 | RunOneTruncationTest(4503601774854143.0, 2147483647); |
| 54 | RunOneTruncationTest(-4503601774854143.0, -2147483647); |
| 55 | RunOneTruncationTest(9007207844675582.0, -2); |
| 56 | RunOneTruncationTest(-9007207844675582.0, 2); |
| 57 | |
| 58 | RunOneTruncationTest(2.4178527921507624e+24, -536870912); |
| 59 | RunOneTruncationTest(-2.4178527921507624e+24, 536870912); |
| 60 | RunOneTruncationTest(2.417853945072267e+24, -536870912); |
| 61 | RunOneTruncationTest(-2.417853945072267e+24, 536870912); |
| 62 | |
| 63 | RunOneTruncationTest(4.8357055843015248e+24, -1073741824); |
| 64 | RunOneTruncationTest(-4.8357055843015248e+24, 1073741824); |
| 65 | RunOneTruncationTest(4.8357078901445341e+24, -1073741824); |
| 66 | RunOneTruncationTest(-4.8357078901445341e+24, 1073741824); |
| 67 | |
| 68 | RunOneTruncationTest(9.6714111686030497e+24, -2147483648); |
| 69 | RunOneTruncationTest(-9.6714111686030497e+24, -2147483648); |
| 70 | RunOneTruncationTest(9.6714157802890681e+24, -2147483648); |
| 71 | RunOneTruncationTest(-9.6714157802890681e+24, -2147483648); |
| 72 | } |
| 73 | |
| 74 | RunAllTruncationTests(); |
| 75 | RunAllTruncationTests(); |
| 76 | %OptimizeFunctionOnNextCall(RunOneTruncationTest); |
| 77 | RunAllTruncationTests(); |
| 78 | RunAllTruncationTests(); |