/*===---- mm_malloc.h - Allocating and Freeing Aligned Memory Blocks -------=== * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. * *===-----------------------------------------------------------------------=== */ #ifndef __MM_MALLOC_H #define __MM_MALLOC_H #include <stdlib.h> #ifdef _WIN32 #include <malloc.h> #else #ifndef __cplusplus extern int posix_memalign(void **__memptr, size_t __alignment, size_t __size); #else // Some systems (e.g. those with GNU libc) declare posix_memalign with an // exception specifier. Via an "egregious workaround" in // Sema::CheckEquivalentExceptionSpec, Clang accepts the following as a valid // redeclaration of glibc's declaration. extern "C" int posix_memalign(void **__memptr, size_t __alignment, size_t __size); #endif #endif #if !(defined(_WIN32) && defined(_mm_malloc)) static __inline__ void *__attribute__((__always_inline__, __nodebug__, __malloc__)) _mm_malloc(size_t __size, size_t __align) { if (__align == 1) { return malloc(__size); } if (!(__align & (__align - 1)) && __align < sizeof(void *)) __align = sizeof(void *); void *__mallocedMemory; #if defined(__MINGW32__) __mallocedMemory = __mingw_aligned_malloc(__size, __align); #elif defined(_WIN32) __mallocedMemory = _aligned_malloc(__size, __align); #else if (posix_memalign(&__mallocedMemory, __align, __size)) return 0; #endif return __mallocedMemory; } static __inline__ void __attribute__((__always_inline__, __nodebug__)) _mm_free(void *__p) { free(__p); } #endif #endif /* __MM_MALLOC_H */