align.h

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/*******************************************************************************
 * This file is part of SWIFT.
 * Copyright (c) 2016 Matthieu Schaller (schaller@strw.leidenuniv.nl).
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published
 * by the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 ******************************************************************************/
#ifndef SWIFT_ALIGN_H
#define SWIFT_ALIGN_H
 
#define SWIFT_STRUCT_ALIGNMENT 32
 
#define SWIFT_STRUCT_ALIGN __attribute__((aligned(SWIFT_STRUCT_ALIGNMENT)))
 
#define SWIFT_CACHE_ALIGNMENT 64
 
#define SWIFT_CACHE_ALIGN __attribute__((aligned(SWIFT_CACHE_ALIGNMENT)))
 
#if defined(__ICC)
#define swift_align_information(type, array, alignment) \
  __assume_aligned(array, alignment);
#elif (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ > 6)
#define swift_align_information(type, array, alignment) \
  array = (type *)__builtin_assume_aligned(array, alignment);
#else
#define swift_align_information(type, array, alignment) ;
#endif
 
#define swift_declare_aligned_ptr(type, array, ptr, alignment) \
  type *restrict array = ptr;                                  \
  swift_align_information(type, array, alignment);
 
#if defined(__ICC)
#define swift_assume_size(var, size) __assume(var % size == 0);
#else
#define swift_assume_size(var, size) ;
#endif
 
#endif /* SWIFT_ALIGN_H */