| Palmer Dabbelt | b35cd98 | 2017-05-23 10:28:26 -0700 | [diff] [blame] | 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 | |
| Christoph Hellwig | 4db2b60 | 2017-11-22 11:47:28 +0100 | [diff] [blame] | 19 | #include <linux/libgcc.h> |
| Palmer Dabbelt | b35cd98 | 2017-05-23 10:28:26 -0700 | [diff] [blame] | 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); |