| /* |
| * Distributed under the Boost Software License, Version 1.0. |
| * (See accompanying file LICENSE_1_0.txt or copy at |
| * http://www.boost.org/LICENSE_1_0.txt) |
| * |
| * Copyright (c) 2009 Helge Bahmann |
| * Copyright (c) 2012 Tim Blechmann |
| * Copyright (c) 2013 - 2014 Andrey Semashev |
| */ |
| /*! |
| * \file atomic/detail/caps_arch_gcc_x86.hpp |
| * |
| * This header defines feature capabilities macros |
| */ |
| |
| #ifndef BOOST_ATOMIC_DETAIL_CAPS_ARCH_GCC_X86_HPP_INCLUDED_ |
| #define BOOST_ATOMIC_DETAIL_CAPS_ARCH_GCC_X86_HPP_INCLUDED_ |
| |
| #include <boost/atomic/detail/config.hpp> |
| |
| #ifdef BOOST_HAS_PRAGMA_ONCE |
| #pragma once |
| #endif |
| |
| #if defined(__GNUC__) |
| |
| #if defined(__i386__) &&\ |
| (\ |
| defined(__GCC_HAVE_SYNC_COMPARE_AND_SWAP_8) ||\ |
| defined(__i586__) || defined(__i686__) || defined(__SSE__)\ |
| ) |
| #define BOOST_ATOMIC_DETAIL_X86_HAS_CMPXCHG8B 1 |
| #endif |
| |
| #if defined(__x86_64__) && defined(__GCC_HAVE_SYNC_COMPARE_AND_SWAP_16) |
| #define BOOST_ATOMIC_DETAIL_X86_HAS_CMPXCHG16B 1 |
| #endif |
| |
| #if defined(__x86_64__) || defined(__SSE2__) |
| // Use mfence only if SSE2 is available |
| #define BOOST_ATOMIC_DETAIL_X86_HAS_MFENCE 1 |
| #endif |
| |
| #else // defined(__GNUC__) |
| |
| #if defined(__i386__) && !defined(BOOST_ATOMIC_NO_CMPXCHG8B) |
| #define BOOST_ATOMIC_DETAIL_X86_HAS_CMPXCHG8B 1 |
| #endif |
| |
| #if defined(__x86_64__) && !defined(BOOST_ATOMIC_NO_CMPXCHG16B) |
| #define BOOST_ATOMIC_DETAIL_X86_HAS_CMPXCHG16B 1 |
| #endif |
| |
| #if !defined(BOOST_ATOMIC_NO_MFENCE) |
| #define BOOST_ATOMIC_DETAIL_X86_HAS_MFENCE 1 |
| #endif |
| |
| #endif // defined(__GNUC__) |
| |
| #define BOOST_ATOMIC_INT8_LOCK_FREE 2 |
| #define BOOST_ATOMIC_INT16_LOCK_FREE 2 |
| #define BOOST_ATOMIC_INT32_LOCK_FREE 2 |
| #if defined(__x86_64__) || defined(BOOST_ATOMIC_DETAIL_X86_HAS_CMPXCHG8B) |
| #define BOOST_ATOMIC_INT64_LOCK_FREE 2 |
| #endif |
| #if defined(BOOST_ATOMIC_DETAIL_X86_HAS_CMPXCHG16B) |
| #define BOOST_ATOMIC_INT128_LOCK_FREE 2 |
| #endif |
| #define BOOST_ATOMIC_POINTER_LOCK_FREE 2 |
| |
| #define BOOST_ATOMIC_THREAD_FENCE 2 |
| #define BOOST_ATOMIC_SIGNAL_FENCE 2 |
| |
| #endif // BOOST_ATOMIC_DETAIL_CAPS_ARCH_GCC_X86_HPP_INCLUDED_ |