projects / thirdparty / glibc.git / blame
| Commit | Line | Data |
|---|---|---|
| 06f6ca90 UD |
1 | /* Copyright (C) 2003 Free Software Foundation, Inc. |
| 2 | This file is part of the GNU C Library. | |
| 3 | ||
| 4 | The GNU C Library is free software; you can redistribute it and/or | |
| 5 | modify it under the terms of the GNU Lesser General Public | |
| 6 | License as published by the Free Software Foundation; either | |
| 7 | version 2.1 of the License, or (at your option) any later version. | |
| 8 | ||
| 9 | The GNU C Library is distributed in the hope that it will be useful, | |
| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 12 | Lesser General Public License for more details. | |
| 13 | ||
| 14 | You should have received a copy of the GNU Lesser General Public | |
| 15 | License along with the GNU C Library; if not, write to the Free | |
| 16 | Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA | |
| 17 | 02111-1307 USA. */ | |
| 18 | ||
| 19 | #include <stdio.h> | |
| 20 | #include <stdint.h> | |
| 21 | ||
| 22 | #define TEST_STACK_ALIGN() \ | |
| 23 | ({ \ | |
| 24 | /* AMD64 ABI mandates 16byte aligned stack. \ | |
| 25 | Unfortunately, current GCC doesn't support __int128 or __float128 \ | |
| 26 | types, so use aligned attribute instead. */ \ | |
| 27 | struct _S \ | |
| 28 | { \ | |
| 29 | int _i __attribute__((aligned (16))); \ | |
| 30 | int _pad[3]; \ | |
| 31 | } _s = { ._i = 18 }; \ | |
| 32 | double _d = 12.0; \ | |
| 33 | long double _ld = 15.0; \ | |
| 34 | int _ret = 0; \ | |
| 35 | printf ("__int128: %d %p %zu\n", _s._i, &_s, __alignof (_s)); \ | |
| 36 | if ((((uintptr_t) &_s) & (__alignof (_s) - 1)) != 0) \ | |
| 37 | _ret = 1; \ | |
| 38 | \ | |
| 39 | printf ("double: %g %p %zu\n", _d, &_d, __alignof (double)); \ | |
| 40 | if ((((uintptr_t) &_d) & (__alignof (double) - 1)) != 0) \ | |
| 41 | _ret = 1; \ | |
| 42 | \ | |
| 43 | printf ("ldouble: %Lg %p %zu\n", _ld, &_ld, __alignof (long double)); \ | |
| 44 | if ((((uintptr_t) &_ld) & (__alignof (long double) - 1)) != 0) \ | |
| 45 | _ret = 1; \ | |
| 46 | _ret; \ | |
| 47 | }) |