Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 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-fold-constants |
| 29 | |
| 30 | function add(x, y) { |
| 31 | return x + y; |
| 32 | } |
| 33 | |
| 34 | assertEquals(0, add(0, 0)); |
| 35 | assertEquals(0, add(0, 0)); |
| 36 | %OptimizeFunctionOnNextCall(add); |
| 37 | assertEquals(-0, add(-0, -0)); |
| 38 | |
| 39 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 40 | function testsin() { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 41 | assertEquals(-0, Math.sin(-0)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 42 | } |
| 43 | |
| 44 | testsin(); |
| 45 | testsin(); |
| 46 | %OptimizeFunctionOnNextCall(testsin); |
| 47 | testsin(); |
| 48 | |
| 49 | |
| 50 | function testfloor() { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 51 | assertEquals(-0, Math.floor(-0)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 52 | } |
| 53 | |
| 54 | testfloor(); |
| 55 | testfloor(); |
| 56 | %OptimizeFunctionOnNextCall(testfloor); |
| 57 | testfloor(); |
| 58 | |
| 59 | |
| 60 | var double_one = Math.cos(0); |
| 61 | |
| 62 | function add(a, b) { |
| 63 | return a + b; |
| 64 | } |
| 65 | |
| 66 | assertEquals(1, 1/add(double_one, 0)); |
| 67 | assertEquals(1, 1/add(0, double_one)); |
| 68 | %OptimizeFunctionOnNextCall(add); |
| 69 | assertEquals(1/(-0 + -0), 1/add(-0, -0)); |