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8d9254fc | 1 | /* Copyright (C) 2004-2020 Free Software Foundation, Inc. |
281de9c2 SM |
2 | |
3 | This file is part of GCC. | |
4 | ||
5 | GCC is free software; you can redistribute it and/or modify | |
6 | it under the terms of the GNU General Public License as published by | |
7 | the Free Software Foundation; either version 3, or (at your option) | |
8 | any later version. | |
9 | ||
10 | GCC is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | GNU General Public License for more details. | |
14 | ||
15 | Under Section 7 of GPL version 3, you are granted additional | |
16 | permissions described in the GCC Runtime Library Exception, version | |
17 | 3.1, as published by the Free Software Foundation. | |
18 | ||
19 | You should have received a copy of the GNU General Public License and | |
20 | a copy of the GCC Runtime Library Exception along with this program; | |
21 | see the files COPYING3 and COPYING.RUNTIME respectively. If not, see | |
22 | <http://www.gnu.org/licenses/>. */ | |
23 | ||
24 | #ifndef _MM_MALLOC_H_INCLUDED | |
25 | #define _MM_MALLOC_H_INCLUDED | |
26 | ||
27 | #include <stdlib.h> | |
28 | ||
29 | /* We can't depend on <stdlib.h> since the prototype of posix_memalign | |
30 | may not be visible. */ | |
31 | #ifndef __cplusplus | |
32 | extern int posix_memalign (void **, size_t, size_t); | |
33 | #else | |
34 | extern "C" int posix_memalign (void **, size_t, size_t) throw (); | |
35 | #endif | |
36 | ||
37 | static __inline void * | |
38 | _mm_malloc (size_t size, size_t alignment) | |
39 | { | |
40 | /* PowerPC64 ELF V2 ABI requires quadword alignment. */ | |
41 | size_t vec_align = sizeof (__vector float); | |
42 | /* Linux GLIBC malloc alignment is at least 2 X ptr size. */ | |
43 | size_t malloc_align = (sizeof (void *) + sizeof (void *)); | |
44 | void *ptr; | |
45 | ||
46 | if (alignment == malloc_align && alignment == vec_align) | |
47 | return malloc (size); | |
48 | if (alignment < vec_align) | |
49 | alignment = vec_align; | |
50 | if (posix_memalign (&ptr, alignment, size) == 0) | |
51 | return ptr; | |
52 | else | |
53 | return NULL; | |
54 | } | |
55 | ||
56 | static __inline void | |
57 | _mm_free (void * ptr) | |
58 | { | |
59 | free (ptr); | |
60 | } | |
61 | ||
62 | #endif /* _MM_MALLOC_H_INCLUDED */ |