1 /*===---- mm_malloc.h - Allocating and Freeing Aligned Memory Blocks -------===
3 * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 * See https://llvm.org/LICENSE.txt for license information.
5 * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
7 *===-----------------------------------------------------------------------===
19 extern int posix_memalign(void **__memptr, size_t __alignment, size_t __size);
21 // Some systems (e.g. those with GNU libc) declare posix_memalign with an
22 // exception specifier. Via an "egregious workaround" in
23 // Sema::CheckEquivalentExceptionSpec, Clang accepts the following as a valid
24 // redeclaration of glibc's declaration.
25 extern "C" int posix_memalign(void **__memptr, size_t __alignment, size_t __size);
29 #if !(defined(_WIN32) && defined(_mm_malloc))
30 static __inline__ void *__attribute__((__always_inline__, __nodebug__,
32 _mm_malloc(size_t __size, size_t __align)
35 return malloc(__size);
38 if (!(__align & (__align - 1)) && __align < sizeof(void *))
39 __align = sizeof(void *);
41 void *__mallocedMemory;
42 #if defined(__MINGW32__)
43 __mallocedMemory = __mingw_aligned_malloc(__size, __align);
45 __mallocedMemory = _aligned_malloc(__size, __align);
47 if (posix_memalign(&__mallocedMemory, __align, __size))
51 return __mallocedMemory;
54 static __inline__ void __attribute__((__always_inline__, __nodebug__))
57 #if defined(__MINGW32__)
58 __mingw_aligned_free(__p);
67 #endif /* __MM_MALLOC_H */