| /* Copyright (C) 2004-2015 Free Software Foundation, Inc. |
| |
| This file is part of GCC. |
| |
| GCC is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 3, or (at your option) |
| any later version. |
| |
| GCC 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 General Public License for more details. |
| |
| Under Section 7 of GPL version 3, you are granted additional |
| permissions described in the GCC Runtime Library Exception, version |
| 3.1, as published by the Free Software Foundation. |
| |
| You should have received a copy of the GNU General Public License and |
| a copy of the GCC Runtime Library Exception along with this program; |
| see the files COPYING3 and COPYING.RUNTIME respectively. If not, see |
| <http://www.gnu.org/licenses/>. */ |
| |
| #ifndef _MM_MALLOC_H_INCLUDED |
| #define _MM_MALLOC_H_INCLUDED |
| |
| #include <stdlib.h> |
| #include <errno.h> |
| |
| static __inline__ void * |
| _mm_malloc (size_t __size, size_t __align) |
| { |
| void * __malloc_ptr; |
| void * __aligned_ptr; |
| |
| /* Error if align is not a power of two. */ |
| if (__align & (__align - 1)) |
| { |
| errno = EINVAL; |
| return ((void *) 0); |
| } |
| |
| if (__size == 0) |
| return ((void *) 0); |
| |
| /* Assume malloc'd pointer is aligned at least to sizeof (void*). |
| If necessary, add another sizeof (void*) to store the value |
| returned by malloc. Effectively this enforces a minimum alignment |
| of sizeof double. */ |
| if (__align < 2 * sizeof (void *)) |
| __align = 2 * sizeof (void *); |
| |
| __malloc_ptr = malloc (__size + __align); |
| if (!__malloc_ptr) |
| return ((void *) 0); |
| |
| /* Align We have at least sizeof (void *) space below malloc'd ptr. */ |
| __aligned_ptr = (void *) (((size_t) __malloc_ptr + __align) |
| & ~((size_t) (__align) - 1)); |
| |
| /* Store the original pointer just before p. */ |
| ((void **) __aligned_ptr)[-1] = __malloc_ptr; |
| |
| return __aligned_ptr; |
| } |
| |
| static __inline__ void |
| _mm_free (void *__aligned_ptr) |
| { |
| if (__aligned_ptr) |
| free (((void **) __aligned_ptr)[-1]); |
| } |
| |
| #endif /* _MM_MALLOC_H_INCLUDED */ |