1a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org// Copyright 2012 the V8 project authors. All rights reserved. 2a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org// Redistribution and use in source and binary forms, with or without 3a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org// modification, are permitted provided that the following conditions are 4a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org// met: 5a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org// 6a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org// * Redistributions of source code must retain the above copyright 7a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org// notice, this list of conditions and the following disclaimer. 8a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org// * Redistributions in binary form must reproduce the above 9a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org// copyright notice, this list of conditions and the following 10a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org// disclaimer in the documentation and/or other materials provided 11a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org// with the distribution. 12a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org// * Neither the name of Google Inc. nor the names of its 13a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org// contributors may be used to endorse or promote products derived 14a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org// from this software without specific prior written permission. 15a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org// 16a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org 28a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org// Flags: --allow-natives-syntax --nouse_inlining --noenable_sudiv 29a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org 30a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org// Use this function as reference. Make sure it is not inlined. 31a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.orgfunction div(a, b) { 32a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org return a / b; 33a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org} 34a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org 35a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.orgvar limit = 0x1000000; 36a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.orgvar exhaustive_limit = 100; 37a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.orgvar step = 10; 38a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.orgvar values = [0x10000001, 39a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org 0x12345678, 40a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org -0x789abcdf, // 0x87654321 41a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org 0x01234567, 42a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org 0x76543210, 43a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org -0x80000000, // 0x80000000 44a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org 0x7fffffff, 45a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org -0x0fffffff, // 0xf0000001 46a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org 0x00000010, 47a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org -0x01000000 // 0xff000000 48a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org ]; 49a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org 50a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.orgfunction test_div() { 51a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org var c = 0; 52a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org for (var k = 0; k <= limit; k++) { 53a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org if (k > exhaustive_limit) { c += step; k += c; } 54a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(k, 1)), Math.floor(k / 1)); 55a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(k, -1)), Math.floor(k / -1)); 56a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(k, 2)), Math.floor(k / 2)); 57a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(k, -2)), Math.floor(k / -2)); 58a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(k, 3)), Math.floor(k / 3)); 59a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(k, -3)), Math.floor(k / -3)); 60a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(k, 4)), Math.floor(k / 4)); 61a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(k, -4)), Math.floor(k / -4)); 62a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(k, 5)), Math.floor(k / 5)); 63a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(k, -5)), Math.floor(k / -5)); 64a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(k, 6)), Math.floor(k / 6)); 65a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(k, -6)), Math.floor(k / -6)); 66a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(k, 7)), Math.floor(k / 7)); 67a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(k, -7)), Math.floor(k / -7)); 68a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(k, 8)), Math.floor(k / 8)); 69a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(k, -8)), Math.floor(k / -8)); 70a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(k, 9)), Math.floor(k / 9)); 71a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(k, -9)), Math.floor(k / -9)); 72a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(k, 10)), Math.floor(k / 10)); 73a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(k, -10)), Math.floor(k / -10)); 74a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(k, 11)), Math.floor(k / 11)); 75a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(k, -11)), Math.floor(k / -11)); 76a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(k, 12)), Math.floor(k / 12)); 77a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(k, -12)), Math.floor(k / -12)); 78a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(k, 13)), Math.floor(k / 13)); 79a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(k, -13)), Math.floor(k / -13)); 80a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(k, 14)), Math.floor(k / 14)); 81a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(k, -14)), Math.floor(k / -14)); 82a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(k, 15)), Math.floor(k / 15)); 83a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(k, -15)), Math.floor(k / -15)); 84a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(k, 16)), Math.floor(k / 16)); 85a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(k, -16)), Math.floor(k / -16)); 86a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(k, 17)), Math.floor(k / 17)); 87a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(k, -17)), Math.floor(k / -17)); 88a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(k, 18)), Math.floor(k / 18)); 89a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(k, -18)), Math.floor(k / -18)); 90a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(k, 19)), Math.floor(k / 19)); 91a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(k, -19)), Math.floor(k / -19)); 92a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(k, 20)), Math.floor(k / 20)); 93a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(k, -20)), Math.floor(k / -20)); 94a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(k, 21)), Math.floor(k / 21)); 95a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(k, -21)), Math.floor(k / -21)); 96a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(k, 22)), Math.floor(k / 22)); 97a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(k, -22)), Math.floor(k / -22)); 98a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(k, 23)), Math.floor(k / 23)); 99a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(k, -23)), Math.floor(k / -23)); 100a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(k, 24)), Math.floor(k / 24)); 101a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(k, -24)), Math.floor(k / -24)); 102a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(k, 25)), Math.floor(k / 25)); 103a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(k, -25)), Math.floor(k / -25)); 104a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(k, 125)), Math.floor(k / 125)); 105a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(k, -125)), Math.floor(k / -125)); 106a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(k, 625)), Math.floor(k / 625)); 107a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(k, -625)), Math.floor(k / -625)); 108a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org } 109a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org c = 0; 110a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org for (var k = 0; k <= limit; k++) { 111a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org if (k > exhaustive_limit) { c += step; k += c; } 112a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(-k, 1)), Math.floor(-k / 1)); 113a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(-k, -1)), Math.floor(-k / -1)); 114a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(-k, 2)), Math.floor(-k / 2)); 115a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(-k, -2)), Math.floor(-k / -2)); 116a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(-k, 3)), Math.floor(-k / 3)); 117a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(-k, -3)), Math.floor(-k / -3)); 118a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(-k, 4)), Math.floor(-k / 4)); 119a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(-k, -4)), Math.floor(-k / -4)); 120a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(-k, 5)), Math.floor(-k / 5)); 121a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(-k, -5)), Math.floor(-k / -5)); 122a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(-k, 6)), Math.floor(-k / 6)); 123a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(-k, -6)), Math.floor(-k / -6)); 124a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(-k, 7)), Math.floor(-k / 7)); 125a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(-k, -7)), Math.floor(-k / -7)); 126a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(-k, 8)), Math.floor(-k / 8)); 127a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(-k, -8)), Math.floor(-k / -8)); 128a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(-k, 9)), Math.floor(-k / 9)); 129a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(-k, -9)), Math.floor(-k / -9)); 130a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(-k, 10)), Math.floor(-k / 10)); 131a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(-k, -10)), Math.floor(-k / -10)); 132a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(-k, 11)), Math.floor(-k / 11)); 133a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(-k, -11)), Math.floor(-k / -11)); 134a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(-k, 12)), Math.floor(-k / 12)); 135a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(-k, -12)), Math.floor(-k / -12)); 136a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(-k, 13)), Math.floor(-k / 13)); 137a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(-k, -13)), Math.floor(-k / -13)); 138a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(-k, 14)), Math.floor(-k / 14)); 139a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(-k, -14)), Math.floor(-k / -14)); 140a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(-k, 15)), Math.floor(-k / 15)); 141a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(-k, -15)), Math.floor(-k / -15)); 142a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(-k, 16)), Math.floor(-k / 16)); 143a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(-k, -16)), Math.floor(-k / -16)); 144a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(-k, 17)), Math.floor(-k / 17)); 145a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(-k, -17)), Math.floor(-k / -17)); 146a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(-k, 18)), Math.floor(-k / 18)); 147a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(-k, -18)), Math.floor(-k / -18)); 148a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(-k, 19)), Math.floor(-k / 19)); 149a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(-k, -19)), Math.floor(-k / -19)); 150a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(-k, 20)), Math.floor(-k / 20)); 151a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(-k, -20)), Math.floor(-k / -20)); 152a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(-k, 21)), Math.floor(-k / 21)); 153a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(-k, -21)), Math.floor(-k / -21)); 154a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(-k, 22)), Math.floor(-k / 22)); 155a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(-k, -22)), Math.floor(-k / -22)); 156a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(-k, 23)), Math.floor(-k / 23)); 157a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(-k, -23)), Math.floor(-k / -23)); 158a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(-k, 24)), Math.floor(-k / 24)); 159a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(-k, -24)), Math.floor(-k / -24)); 160a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(-k, 25)), Math.floor(-k / 25)); 161a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(-k, -25)), Math.floor(-k / -25)); 162a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(-k, 125)), Math.floor(-k / 125)); 163a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(-k, -125)), Math.floor(-k / -125)); 164a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(-k, 625)), Math.floor(-k / 625)); 165a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(-k, -625)), Math.floor(-k / -625)); 166a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org } 167a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org // Test for edge cases. 168a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org // Use (values[key] | 0) to force the integer type. 169a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org for (var i = 0; i < values.length; i++) { 170a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org for (var j = 0; j < values.length; j++) { 171a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div((values[i] | 0), (values[j] | 0))), 172a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org Math.floor((values[i] | 0) / (values[j] | 0))); 173a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(-(values[i] | 0), (values[j] | 0))), 174a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org Math.floor(-(values[i] | 0) / (values[j] | 0))); 175a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div((values[i] | 0), -(values[j] | 0))), 176a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org Math.floor((values[i] | 0) / -(values[j] | 0))); 177a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(Math.floor(div(-(values[i] | 0), -(values[j] | 0))), 178a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org Math.floor(-(values[i] | 0) / -(values[j] | 0))); 179a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org } 180a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org } 181a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org} 182a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org 183a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.orgtest_div(); 184a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org%OptimizeFunctionOnNextCall(test_div); 185a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.orgtest_div(); 186a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org 187750145ab1b720c97adf2b548cc8fbd28c8b8e06dulan@chromium.org// Test for flooring correctness. 1884cd70b470729dd5850dd4120a350f01363d16837yangguo@chromium.orgvar values2 = [1, 3, 10, 99, 100, 101, 0x7fffffff]; 1894cd70b470729dd5850dd4120a350f01363d16837yangguo@chromium.orgfunction test_div2() { 1904cd70b470729dd5850dd4120a350f01363d16837yangguo@chromium.org for (var i = 0; i < values2.length; i++) { 1914cd70b470729dd5850dd4120a350f01363d16837yangguo@chromium.org for (var j = 0; j < values2.length; j++) { 1924cd70b470729dd5850dd4120a350f01363d16837yangguo@chromium.org assertEquals(Math.floor(div((values2[i] | 0), (values2[j] | 0))), 1934cd70b470729dd5850dd4120a350f01363d16837yangguo@chromium.org Math.floor((values2[i] | 0) / (values2[j] | 0))); 1944cd70b470729dd5850dd4120a350f01363d16837yangguo@chromium.org assertEquals(Math.floor(div(-(values2[i] | 0), (values2[j] | 0))), 1954cd70b470729dd5850dd4120a350f01363d16837yangguo@chromium.org Math.floor(-(values2[i] | 0) / (values2[j] | 0))); 1964cd70b470729dd5850dd4120a350f01363d16837yangguo@chromium.org assertEquals(Math.floor(div((values2[i] | 0), -(values2[j] | 0))), 1974cd70b470729dd5850dd4120a350f01363d16837yangguo@chromium.org Math.floor((values2[i] | 0) / -(values2[j] | 0))); 1984cd70b470729dd5850dd4120a350f01363d16837yangguo@chromium.org assertEquals(Math.floor(div(-(values2[i] | 0), -(values2[j] | 0))), 1994cd70b470729dd5850dd4120a350f01363d16837yangguo@chromium.org Math.floor(-(values2[i] | 0) / -(values2[j] | 0))); 2004cd70b470729dd5850dd4120a350f01363d16837yangguo@chromium.org } 2014cd70b470729dd5850dd4120a350f01363d16837yangguo@chromium.org } 2024cd70b470729dd5850dd4120a350f01363d16837yangguo@chromium.org} 2034cd70b470729dd5850dd4120a350f01363d16837yangguo@chromium.org 2044cd70b470729dd5850dd4120a350f01363d16837yangguo@chromium.orgtest_div2(); 2054cd70b470729dd5850dd4120a350f01363d16837yangguo@chromium.org%OptimizeFunctionOnNextCall(test_div2); 2064cd70b470729dd5850dd4120a350f01363d16837yangguo@chromium.orgtest_div2(); 2074cd70b470729dd5850dd4120a350f01363d16837yangguo@chromium.org 2084cd70b470729dd5850dd4120a350f01363d16837yangguo@chromium.org 209a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org// Test for negative zero, overflow and division by 0. 210a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org// Separate the tests to prevent deoptimizations from making the other optimized 211a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org// test unreachable. 212a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org 2134cd70b470729dd5850dd4120a350f01363d16837yangguo@chromium.org// We box the value in an array to avoid constant propagation. 2144cd70b470729dd5850dd4120a350f01363d16837yangguo@chromium.orgvar neg_one_in_array = [-1]; 2154cd70b470729dd5850dd4120a350f01363d16837yangguo@chromium.orgvar zero_in_array = [0]; 2164cd70b470729dd5850dd4120a350f01363d16837yangguo@chromium.orgvar min_int_in_array = [-2147483648]; 2174cd70b470729dd5850dd4120a350f01363d16837yangguo@chromium.org 2184cd70b470729dd5850dd4120a350f01363d16837yangguo@chromium.org// Test for dividing by constant. 219a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.orgfunction IsNegativeZero(x) { 220a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertTrue(x == 0); // Is 0 or -0. 221a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org var y = 1 / x; 222a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertFalse(isFinite(y)); 223a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org return y < 0; 224a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org} 225a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org 226a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.orgfunction test_div_deopt_minus_zero() { 227a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org for (var i = 0; i < 2; ++i) { 228a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertTrue(IsNegativeZero(Math.floor((zero_in_array[0] | 0) / -1))); 229a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org } 230a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org} 231a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org 232a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.orgfunction test_div_deopt_overflow() { 233a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org for (var i = 0; i < 2; ++i) { 234a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org // We use '| 0' to force the representation to int32. 235a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(-min_int_in_array[0], 236a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org Math.floor((min_int_in_array[0] | 0) / -1)); 237a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org } 238a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org} 239a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org 240a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.orgfunction test_div_deopt_div_by_zero() { 241a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org for (var i = 0; i < 2; ++i) { 242a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org assertEquals(div(i, 0), 243a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org Math.floor(i / 0)); 244a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org } 245a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org} 246a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org 247a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.orgtest_div_deopt_minus_zero(); 248a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.orgtest_div_deopt_overflow(); 249a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.orgtest_div_deopt_div_by_zero(); 250a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org%OptimizeFunctionOnNextCall(test_div_deopt_minus_zero); 251a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org%OptimizeFunctionOnNextCall(test_div_deopt_overflow); 252a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org%OptimizeFunctionOnNextCall(test_div_deopt_div_by_zero); 253a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.orgtest_div_deopt_minus_zero(); 254a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.orgtest_div_deopt_overflow(); 255a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.orgtest_div_deopt_div_by_zero(); 2564cd70b470729dd5850dd4120a350f01363d16837yangguo@chromium.org 2574cd70b470729dd5850dd4120a350f01363d16837yangguo@chromium.org// Test for dividing by variable. 2584cd70b470729dd5850dd4120a350f01363d16837yangguo@chromium.orgfunction test_div_deopt_minus_zero_v() { 2594cd70b470729dd5850dd4120a350f01363d16837yangguo@chromium.org for (var i = 0; i < 2; ++i) { 2604cd70b470729dd5850dd4120a350f01363d16837yangguo@chromium.org assertTrue(IsNegativeZero(Math.floor((zero_in_array[0] | 0) / 2614cd70b470729dd5850dd4120a350f01363d16837yangguo@chromium.org neg_one_in_array[0]))); 2624cd70b470729dd5850dd4120a350f01363d16837yangguo@chromium.org } 2634cd70b470729dd5850dd4120a350f01363d16837yangguo@chromium.org} 2644cd70b470729dd5850dd4120a350f01363d16837yangguo@chromium.org 2654cd70b470729dd5850dd4120a350f01363d16837yangguo@chromium.orgfunction test_div_deopt_overflow_v() { 2664cd70b470729dd5850dd4120a350f01363d16837yangguo@chromium.org for (var i = 0; i < 2; ++i) { 2674cd70b470729dd5850dd4120a350f01363d16837yangguo@chromium.org // We use '| 0' to force the representation to int32. 2684cd70b470729dd5850dd4120a350f01363d16837yangguo@chromium.org assertEquals(-min_int_in_array[0], 2694cd70b470729dd5850dd4120a350f01363d16837yangguo@chromium.org Math.floor((min_int_in_array[0] | 0) / neg_one_in_array[0])); 2704cd70b470729dd5850dd4120a350f01363d16837yangguo@chromium.org } 2714cd70b470729dd5850dd4120a350f01363d16837yangguo@chromium.org} 2724cd70b470729dd5850dd4120a350f01363d16837yangguo@chromium.org 2734cd70b470729dd5850dd4120a350f01363d16837yangguo@chromium.orgfunction test_div_deopt_div_by_zero_v() { 2744cd70b470729dd5850dd4120a350f01363d16837yangguo@chromium.org for (var i = 0; i < 2; ++i) { 2754cd70b470729dd5850dd4120a350f01363d16837yangguo@chromium.org assertEquals(div(i, 0), 2764cd70b470729dd5850dd4120a350f01363d16837yangguo@chromium.org Math.floor(i / zero_in_array[0])); 2774cd70b470729dd5850dd4120a350f01363d16837yangguo@chromium.org } 2784cd70b470729dd5850dd4120a350f01363d16837yangguo@chromium.org} 2794cd70b470729dd5850dd4120a350f01363d16837yangguo@chromium.org 2804cd70b470729dd5850dd4120a350f01363d16837yangguo@chromium.orgtest_div_deopt_minus_zero_v(); 2814cd70b470729dd5850dd4120a350f01363d16837yangguo@chromium.orgtest_div_deopt_overflow_v(); 2824cd70b470729dd5850dd4120a350f01363d16837yangguo@chromium.orgtest_div_deopt_div_by_zero_v(); 2834cd70b470729dd5850dd4120a350f01363d16837yangguo@chromium.org%OptimizeFunctionOnNextCall(test_div_deopt_minus_zero_v); 2844cd70b470729dd5850dd4120a350f01363d16837yangguo@chromium.org%OptimizeFunctionOnNextCall(test_div_deopt_overflow_v); 2854cd70b470729dd5850dd4120a350f01363d16837yangguo@chromium.org%OptimizeFunctionOnNextCall(test_div_deopt_div_by_zero_v); 2864cd70b470729dd5850dd4120a350f01363d16837yangguo@chromium.orgtest_div_deopt_minus_zero_v(); 2874cd70b470729dd5850dd4120a350f01363d16837yangguo@chromium.orgtest_div_deopt_overflow_v(); 2884cd70b470729dd5850dd4120a350f01363d16837yangguo@chromium.orgtest_div_deopt_div_by_zero_v(); 289