atomic/detail/ops_gcc_aarch64_common.hpp

0001 /*
0002  * Distributed under the Boost Software License, Version 1.0.
0003  * (See accompanying file LICENSE_1_0.txt or copy at
0004  * http://www.boost.org/LICENSE_1_0.txt)
0005  *
0006  * Copyright (c) 2020 Andrey Semashev
0007  */
0008 /*!
0009  * \file   atomic/detail/ops_gcc_aarch64_common.hpp
0010  *
0011  * This header contains basic utilities for gcc AArch64 backend.
0012  */
0013
0014 #ifndef BOOST_ATOMIC_DETAIL_OPS_GCC_AARCH64_COMMON_HPP_INCLUDED_
0015 #define BOOST_ATOMIC_DETAIL_OPS_GCC_AARCH64_COMMON_HPP_INCLUDED_
0016
0017 #include <boost/atomic/detail/config.hpp>
0018 #include <boost/atomic/detail/capabilities.hpp>
0019
0020 #ifdef BOOST_HAS_PRAGMA_ONCE
0021 #pragma once
0022 #endif
0023
0024 #define BOOST_ATOMIC_DETAIL_AARCH64_MO_SWITCH(mo)\
0025     switch (mo)\
0026     {\
0027     case memory_order_relaxed:\
0028         BOOST_ATOMIC_DETAIL_AARCH64_MO_INSN("", "")\
0029         break;\
0030     \
0031     case memory_order_consume:\
0032     case memory_order_acquire:\
0033         BOOST_ATOMIC_DETAIL_AARCH64_MO_INSN("a", "")\
0034         break;\
0035     \
0036     case memory_order_release:\
0037         BOOST_ATOMIC_DETAIL_AARCH64_MO_INSN("", "l")\
0038         break;\
0039     \
0040     default:\
0041         BOOST_ATOMIC_DETAIL_AARCH64_MO_INSN("a", "l")\
0042         break;\
0043     }
0044
0045 #if defined(BOOST_ATOMIC_DETAIL_AARCH64_LITTLE_ENDIAN)
0046 #define BOOST_ATOMIC_DETAIL_AARCH64_ASM_ARG_LO "0"
0047 #define BOOST_ATOMIC_DETAIL_AARCH64_ASM_ARG_HI "1"
0048 #else
0049 #define BOOST_ATOMIC_DETAIL_AARCH64_ASM_ARG_LO "1"
0050 #define BOOST_ATOMIC_DETAIL_AARCH64_ASM_ARG_HI "0"
0051 #endif
0052
0053 #endif // BOOST_ATOMIC_DETAIL_OPS_GCC_AARCH64_COMMON_HPP_INCLUDED_