1 /* 2 * This program is free software; you can redistribute it and/or modify 3 * it under the terms of the GNU General Public License as published by 4 * the Free Software Foundation; either version 2 of the License, or 5 * (at your option) any later version. 6 * 7 * This program is distributed in the hope that it will be useful, 8 * but WITHOUT ANY WARRANTY; without even the implied warranty of 9 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 10 * GNU General Public License for more details. 11 * 12 * You should have received a copy of the GNU General Public License 13 * along with this program; if not, see the file COPYING, or write 14 * to the Free Software Foundation, Inc. 15 */ 16 17 #include <linux/export.h> 18 19 #include <linux/libgcc.h> 20 21 word_type notrace __cmpdi2(long long a, long long b) 22 { 23 const DWunion au = { 24 .ll = a 25 }; 26 const DWunion bu = { 27 .ll = b 28 }; 29 30 if (au.s.high < bu.s.high) 31 return 0; 32 else if (au.s.high > bu.s.high) 33 return 2; 34 35 if ((unsigned int) au.s.low < (unsigned int) bu.s.low) 36 return 0; 37 else if ((unsigned int) au.s.low > (unsigned int) bu.s.low) 38 return 2; 39 40 return 1; 41 } 42 EXPORT_SYMBOL(__cmpdi2); 43