jkummerow@chromium.org | 7a6fc81 | 2012-06-27 11:12:38 +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: --noenable_sse4_1 --allow-natives-syntax |
| 29 | |
| 30 | function test1() { |
| 31 | // Trigger overflow when converting/truncating double to integer. |
| 32 | // Divide by 10 to avoid overflow when smi-tagging at the end. |
| 33 | return Math.floor(-100000000000.5) / 10; |
| 34 | } |
| 35 | |
| 36 | function test2() { |
| 37 | // Trigger no overflow. |
| 38 | return Math.floor(-100.2); |
| 39 | } |
| 40 | |
| 41 | function test3() { |
| 42 | // Trigger overflow when compensating by subtracting after compare. |
| 43 | // Divide by 10 to avoid overflow when smi-tagging at the end. |
| 44 | return Math.floor(-2147483648.1) / 10; |
| 45 | } |
| 46 | |
| 47 | test1(); |
| 48 | test1(); |
| 49 | %OptimizeFunctionOnNextCall(test1); |
| 50 | test2(); |
| 51 | test2(); |
| 52 | %OptimizeFunctionOnNextCall(test2); |
| 53 | test3(); |
| 54 | test3(); |
| 55 | %OptimizeFunctionOnNextCall(test3); |
| 56 | |
| 57 | assertEquals(-10000000000.1, test1()); |
| 58 | assertEquals(-101, test2()); |
| 59 | assertEquals(-214748364.9, test3()); |