1efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org// Copyright 2012 the V8 project authors. All rights reserved. 2efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org// Redistribution and use in source and binary forms, with or without 3efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org// modification, are permitted provided that the following conditions are 4efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org// met: 5efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org// 6efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org// * Redistributions of source code must retain the above copyright 7efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org// notice, this list of conditions and the following disclaimer. 8efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org// * Redistributions in binary form must reproduce the above 9efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org// copyright notice, this list of conditions and the following 10efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org// disclaimer in the documentation and/or other materials provided 11efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org// with the distribution. 12efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org// * Neither the name of Google Inc. nor the names of its 13efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org// contributors may be used to endorse or promote products derived 14efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org// from this software without specific prior written permission. 15efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org// 16efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org 28a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org// Flags: --allow-natives-syntax --nouse_inlining --enable_sudiv 29efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org 30efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org// Use this function as reference. Make sure it is not inlined. 31efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.orgfunction div(a, b) { 32efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org return a / b; 33efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org} 34efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org 35efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.orgvar limit = 0x1000000; 36efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.orgvar exhaustive_limit = 100; 37efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.orgvar step = 10; 38efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.orgvar values = [0x10000001, 39efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org 0x12345678, 40efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org -0x789abcdf, // 0x87654321 41efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org 0x01234567, 42efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org 0x76543210, 43efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org -0x80000000, // 0x80000000 44efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org 0x7fffffff, 45efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org -0x0fffffff, // 0xf0000001 46efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org 0x00000010, 47efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org -0x01000000 // 0xff000000 48efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org ]; 49efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org 50efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.orgfunction test_div() { 51efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org var c = 0; 52efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org for (var k = 0; k <= limit; k++) { 53efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org if (k > exhaustive_limit) { c += step; k += c; } 54efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(k, 1)), Math.floor(k / 1)); 55efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(k, -1)), Math.floor(k / -1)); 56efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(k, 2)), Math.floor(k / 2)); 57efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(k, -2)), Math.floor(k / -2)); 58efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(k, 3)), Math.floor(k / 3)); 59efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(k, -3)), Math.floor(k / -3)); 60efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(k, 4)), Math.floor(k / 4)); 61efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(k, -4)), Math.floor(k / -4)); 62efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(k, 5)), Math.floor(k / 5)); 63efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(k, -5)), Math.floor(k / -5)); 64efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(k, 6)), Math.floor(k / 6)); 65efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(k, -6)), Math.floor(k / -6)); 66efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(k, 7)), Math.floor(k / 7)); 67efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(k, -7)), Math.floor(k / -7)); 68efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(k, 8)), Math.floor(k / 8)); 69efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(k, -8)), Math.floor(k / -8)); 70efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(k, 9)), Math.floor(k / 9)); 71efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(k, -9)), Math.floor(k / -9)); 72efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(k, 10)), Math.floor(k / 10)); 73efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(k, -10)), Math.floor(k / -10)); 74efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(k, 11)), Math.floor(k / 11)); 75efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(k, -11)), Math.floor(k / -11)); 76efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(k, 12)), Math.floor(k / 12)); 77efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(k, -12)), Math.floor(k / -12)); 78efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(k, 13)), Math.floor(k / 13)); 79efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(k, -13)), Math.floor(k / -13)); 80efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(k, 14)), Math.floor(k / 14)); 81efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(k, -14)), Math.floor(k / -14)); 82efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(k, 15)), Math.floor(k / 15)); 83efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(k, -15)), Math.floor(k / -15)); 84efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(k, 16)), Math.floor(k / 16)); 85efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(k, -16)), Math.floor(k / -16)); 86efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(k, 17)), Math.floor(k / 17)); 87efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(k, -17)), Math.floor(k / -17)); 88efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(k, 18)), Math.floor(k / 18)); 89efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(k, -18)), Math.floor(k / -18)); 90efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(k, 19)), Math.floor(k / 19)); 91efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(k, -19)), Math.floor(k / -19)); 92efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(k, 20)), Math.floor(k / 20)); 93efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(k, -20)), Math.floor(k / -20)); 94efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(k, 21)), Math.floor(k / 21)); 95efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(k, -21)), Math.floor(k / -21)); 96efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(k, 22)), Math.floor(k / 22)); 97efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(k, -22)), Math.floor(k / -22)); 98efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(k, 23)), Math.floor(k / 23)); 99efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(k, -23)), Math.floor(k / -23)); 100efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(k, 24)), Math.floor(k / 24)); 101efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(k, -24)), Math.floor(k / -24)); 102efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(k, 25)), Math.floor(k / 25)); 103efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(k, -25)), Math.floor(k / -25)); 104efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(k, 125)), Math.floor(k / 125)); 105efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(k, -125)), Math.floor(k / -125)); 106efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(k, 625)), Math.floor(k / 625)); 107efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(k, -625)), Math.floor(k / -625)); 108efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org } 109efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org c = 0; 110efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org for (var k = 0; k <= limit; k++) { 111efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org if (k > exhaustive_limit) { c += step; k += c; } 112efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(-k, 1)), Math.floor(-k / 1)); 113efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(-k, -1)), Math.floor(-k / -1)); 114efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(-k, 2)), Math.floor(-k / 2)); 115efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(-k, -2)), Math.floor(-k / -2)); 116efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(-k, 3)), Math.floor(-k / 3)); 117efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(-k, -3)), Math.floor(-k / -3)); 118efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(-k, 4)), Math.floor(-k / 4)); 119efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(-k, -4)), Math.floor(-k / -4)); 120efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(-k, 5)), Math.floor(-k / 5)); 121efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(-k, -5)), Math.floor(-k / -5)); 122efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(-k, 6)), Math.floor(-k / 6)); 123efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(-k, -6)), Math.floor(-k / -6)); 124efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(-k, 7)), Math.floor(-k / 7)); 125efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(-k, -7)), Math.floor(-k / -7)); 126efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(-k, 8)), Math.floor(-k / 8)); 127efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(-k, -8)), Math.floor(-k / -8)); 128efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(-k, 9)), Math.floor(-k / 9)); 129efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(-k, -9)), Math.floor(-k / -9)); 130efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(-k, 10)), Math.floor(-k / 10)); 131efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(-k, -10)), Math.floor(-k / -10)); 132efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(-k, 11)), Math.floor(-k / 11)); 133efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(-k, -11)), Math.floor(-k / -11)); 134efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(-k, 12)), Math.floor(-k / 12)); 135efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(-k, -12)), Math.floor(-k / -12)); 136efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(-k, 13)), Math.floor(-k / 13)); 137efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(-k, -13)), Math.floor(-k / -13)); 138efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(-k, 14)), Math.floor(-k / 14)); 139efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(-k, -14)), Math.floor(-k / -14)); 140efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(-k, 15)), Math.floor(-k / 15)); 141efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(-k, -15)), Math.floor(-k / -15)); 142efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(-k, 16)), Math.floor(-k / 16)); 143efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(-k, -16)), Math.floor(-k / -16)); 144efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(-k, 17)), Math.floor(-k / 17)); 145efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(-k, -17)), Math.floor(-k / -17)); 146efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(-k, 18)), Math.floor(-k / 18)); 147efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(-k, -18)), Math.floor(-k / -18)); 148efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(-k, 19)), Math.floor(-k / 19)); 149efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(-k, -19)), Math.floor(-k / -19)); 150efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(-k, 20)), Math.floor(-k / 20)); 151efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(-k, -20)), Math.floor(-k / -20)); 152efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(-k, 21)), Math.floor(-k / 21)); 153efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(-k, -21)), Math.floor(-k / -21)); 154efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(-k, 22)), Math.floor(-k / 22)); 155efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(-k, -22)), Math.floor(-k / -22)); 156efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(-k, 23)), Math.floor(-k / 23)); 157efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(-k, -23)), Math.floor(-k / -23)); 158efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(-k, 24)), Math.floor(-k / 24)); 159efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(-k, -24)), Math.floor(-k / -24)); 160efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(-k, 25)), Math.floor(-k / 25)); 161efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(-k, -25)), Math.floor(-k / -25)); 162efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(-k, 125)), Math.floor(-k / 125)); 163efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(-k, -125)), Math.floor(-k / -125)); 164efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(-k, 625)), Math.floor(-k / 625)); 165efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(-k, -625)), Math.floor(-k / -625)); 166efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org } 167efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org // Test for edge cases. 168efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org // Use (values[key] | 0) to force the integer type. 169efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org for (var i = 0; i < values.length; i++) { 170efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org for (var j = 0; j < values.length; j++) { 171efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div((values[i] | 0), (values[j] | 0))), 172efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org Math.floor((values[i] | 0) / (values[j] | 0))); 173efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(-(values[i] | 0), (values[j] | 0))), 174efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org Math.floor(-(values[i] | 0) / (values[j] | 0))); 175efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div((values[i] | 0), -(values[j] | 0))), 176efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org Math.floor((values[i] | 0) / -(values[j] | 0))); 177efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertEquals(Math.floor(div(-(values[i] | 0), -(values[j] | 0))), 178efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org Math.floor(-(values[i] | 0) / -(values[j] | 0))); 179efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org } 180efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org } 181efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org} 182efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org 183efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.orgtest_div(); 184efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org%OptimizeFunctionOnNextCall(test_div); 185efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.orgtest_div(); 186efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@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. 210efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org// Separate the tests to prevent deoptimizations from making the other optimized 211efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org// test unreachable. 212efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@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. 219efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.orgfunction IsNegativeZero(x) { 220efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertTrue(x == 0); // Is 0 or -0. 221efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org var y = 1 / x; 222efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org assertFalse(isFinite(y)); 223efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org return y < 0; 224efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org} 225efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org 226efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@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 } 230efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org} 231efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org 232efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@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 } 245efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org} 246efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org 247efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.orgtest_div_deopt_minus_zero(); 248efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.orgtest_div_deopt_overflow(); 249a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.orgtest_div_deopt_div_by_zero(); 250efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org%OptimizeFunctionOnNextCall(test_div_deopt_minus_zero); 251efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.org%OptimizeFunctionOnNextCall(test_div_deopt_overflow); 252a6bbcc801f63c451f814d6da77a1a48fba3d36c6yangguo@chromium.org%OptimizeFunctionOnNextCall(test_div_deopt_div_by_zero); 253efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@chromium.orgtest_div_deopt_minus_zero(); 254efdb9d70bddd496ceb6a281dadcc065efbce37a1yangguo@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(); 289bcc36723a2ace28fa3b0d7dd0d1de926d313fff9machenbach@chromium.org 290bcc36723a2ace28fa3b0d7dd0d1de926d313fff9machenbach@chromium.org 291bcc36723a2ace28fa3b0d7dd0d1de926d313fff9machenbach@chromium.org// Test for flooring division with negative dividend. 292bcc36723a2ace28fa3b0d7dd0d1de926d313fff9machenbach@chromium.orgfunction flooring_div_by_3(y) { 293bcc36723a2ace28fa3b0d7dd0d1de926d313fff9machenbach@chromium.org return Math.floor(y / 3); 294bcc36723a2ace28fa3b0d7dd0d1de926d313fff9machenbach@chromium.org} 295bcc36723a2ace28fa3b0d7dd0d1de926d313fff9machenbach@chromium.org 296bcc36723a2ace28fa3b0d7dd0d1de926d313fff9machenbach@chromium.orgassertEquals(-1, flooring_div_by_3(-2)); 297bcc36723a2ace28fa3b0d7dd0d1de926d313fff9machenbach@chromium.orgassertEquals(-1, flooring_div_by_3(-2)); 298bcc36723a2ace28fa3b0d7dd0d1de926d313fff9machenbach@chromium.org%OptimizeFunctionOnNextCall(flooring_div_by_3); 299bcc36723a2ace28fa3b0d7dd0d1de926d313fff9machenbach@chromium.orgassertEquals(-1, flooring_div_by_3(-2)); 300