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1 /* Copyright (C) 2004-2018 Free Software Foundation, Inc.
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111
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2
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3 This file is part of GCC.
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4
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5 GCC is free software; you can redistribute it and/or modify
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6 it under the terms of the GNU General Public License as published by
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7 the Free Software Foundation; either version 3, or (at your option)
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8 any later version.
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9
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10 GCC is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 GNU General Public License for more details.
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14
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15 Under Section 7 of GPL version 3, you are granted additional
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16 permissions described in the GCC Runtime Library Exception, version
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17 3.1, as published by the Free Software Foundation.
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18
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19 You should have received a copy of the GNU General Public License and
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20 a copy of the GCC Runtime Library Exception along with this program;
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21 see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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22 <http://www.gnu.org/licenses/>. */
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23
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24 #ifndef _MM_MALLOC_H_INCLUDED
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25 #define _MM_MALLOC_H_INCLUDED
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26
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27 #include <stdlib.h>
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28
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29 /* We can't depend on <stdlib.h> since the prototype of posix_memalign
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30 may not be visible. */
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31 #ifndef __cplusplus
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32 extern int posix_memalign (void **, size_t, size_t);
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33 #else
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34 extern "C" int posix_memalign (void **, size_t, size_t) throw ();
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35 #endif
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36
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37 static __inline void *
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38 _mm_malloc (size_t size, size_t alignment)
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39 {
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40 /* PowerPC64 ELF V2 ABI requires quadword alignment. */
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41 size_t vec_align = sizeof (__vector float);
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42 /* Linux GLIBC malloc alignment is at least 2 X ptr size. */
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43 size_t malloc_align = (sizeof (void *) + sizeof (void *));
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44 void *ptr;
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45
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46 if (alignment == malloc_align && alignment == vec_align)
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47 return malloc (size);
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48 if (alignment < vec_align)
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49 alignment = vec_align;
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50 if (posix_memalign (&ptr, alignment, size) == 0)
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51 return ptr;
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52 else
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53 return NULL;
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54 }
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55
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56 static __inline void
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57 _mm_free (void * ptr)
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58 {
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59 free (ptr);
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60 }
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61
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62 #endif /* _MM_MALLOC_H_INCLUDED */
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