| /* Copyright (C) 2003 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| |
| The GNU C Library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Lesser General Public |
| License as published by the Free Software Foundation; either |
| version 2.1 of the License, or (at your option) any later version. |
| |
| The GNU C Library is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with the GNU C Library; if not, write to the Free |
| Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
| 02111-1307 USA. */ |
| |
| #include <stdio.h> |
| #include <stdint.h> |
| |
| #define TEST_STACK_ALIGN() \ |
| ({ \ |
| /* AMD64 ABI mandates 16byte aligned stack. \ |
| Unfortunately, current GCC doesn't support __int128 or __float128 \ |
| types, so use aligned attribute instead. */ \ |
| struct _S \ |
| { \ |
| int _i __attribute__((aligned (16))); \ |
| int _pad[3]; \ |
| } _s = { ._i = 18 }; \ |
| double _d = 12.0; \ |
| long double _ld = 15.0; \ |
| int _ret = 0; \ |
| printf ("__int128: %d %p %zu\n", _s._i, &_s, __alignof (_s)); \ |
| if ((((uintptr_t) &_s) & (__alignof (_s) - 1)) != 0) \ |
| _ret = 1; \ |
| \ |
| printf ("double: %g %p %zu\n", _d, &_d, __alignof (double)); \ |
| if ((((uintptr_t) &_d) & (__alignof (double) - 1)) != 0) \ |
| _ret = 1; \ |
| \ |
| printf ("ldouble: %Lg %p %zu\n", _ld, &_ld, __alignof (long double)); \ |
| if ((((uintptr_t) &_ld) & (__alignof (long double) - 1)) != 0) \ |
| _ret = 1; \ |
| _ret; \ |
| }) |
