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#ifndef OQS_COMMON_COMPAT_H
#define OQS_COMMON_COMPAT_H
/* This file serves to solve compatibility issues between different
* versions of compilers.
*
* This file is allowed to use #ifdefs and toggle things by compiler versions.
*
* SPDX-License-Identifier: MIT
*
*/
// From https://github.com/gcc-mirror/gcc/blob/af73a8b2027d9ab64944d7dbbb48e207d7790ce6/gcc/config/i386/avxintrin.h#L62-L71
/* Unaligned versions of the vector types */
#define UNALIGNED_VECTOR_POLYFILL_GCC \
typedef float __m256_u __attribute__ ((__vector_size__ (32), __may_alias__, __aligned__ (1))); \
typedef double __m256d_u __attribute__ ((__vector_size__ (32), __may_alias__, __aligned__ (1))); \
typedef long long __m256i_u __attribute__ ((__vector_size__ (32), __may_alias__, __aligned__ (1)));
#if defined(__GNUC__) && !defined(__clang__)
#if ((__GNUC__ << 16) + __GNUC_MINOR__ >= ((7) << 16) + (1)) // at least GCC 7.1
/* Versions of the GCC pre-7.1 don't have __m256*_u types */
UNALIGNED_VECTOR_POLYFILL_GCC
# endif // GCC >= 7.1
#elif defined(__GNUC__) && defined(__clang__)
# if __clang__major__ < 9
/* Versions of Clang pre-9.0 don't have __m256*_u types */
UNALIGNED_VECTOR_POLYFILL_GCC
# endif
#else
// Neither MSVC nor other compilers seem to have these types
#define __m256_u __m256
#define __m256d_u __m256d
#define __m256i_u __m256i
#endif // compiler selector
#endif // OQS_COMMON_COMPAT_H
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