ceph/src/boost/boost/atomic/detail/caps_msvc_x86.hpp

   1 /*
   2  * Distributed under the Boost Software License, Version 1.0.
   3  * (See accompanying file LICENSE_1_0.txt or copy at
   4  * http://www.boost.org/LICENSE_1_0.txt)
   5  *
   6  * Copyright (c) 2009 Helge Bahmann
   7  * Copyright (c) 2013 Tim Blechmann
   8  * Copyright (c) 2012 - 2014 Andrey Semashev
   9  */
  10 /*!
  11  * \file   atomic/detail/caps_msvc_x86.hpp
  12  *
  13  * This header defines feature capabilities macros
  14  */
  15
  16 #ifndef BOOST_ATOMIC_DETAIL_CAPS_MSVC_X86_HPP_INCLUDED_
  17 #define BOOST_ATOMIC_DETAIL_CAPS_MSVC_X86_HPP_INCLUDED_
  18
  19 #include <boost/atomic/detail/config.hpp>
  20
  21 #ifdef BOOST_HAS_PRAGMA_ONCE
  22 #pragma once
  23 #endif
  24
  25 #if defined(_M_IX86) && _M_IX86 >= 500
  26 #define BOOST_ATOMIC_DETAIL_X86_HAS_CMPXCHG8B 1
  27 #endif
  28
  29 #if !defined(BOOST_ATOMIC_NO_CMPXCHG16B)
  30 #if defined(__clang__) && (defined(_M_AMD64) || defined(__x86_64__)) && defined(__GCC_HAVE_SYNC_COMPARE_AND_SWAP_16)
  31 #define BOOST_ATOMIC_DETAIL_X86_HAS_CMPXCHG16B 1
  32 #elif _MSC_VER >= 1500 && defined(_M_AMD64)
  33 #define BOOST_ATOMIC_DETAIL_X86_HAS_CMPXCHG16B 1
  34 #endif
  35 #endif
  36
  37 #if defined(_MSC_VER) && (defined(_M_AMD64) || (defined(_M_IX86) && defined(_M_IX86_FP) && _M_IX86_FP >= 2))
  38 // Use mfence only if SSE2 is available
  39 #define BOOST_ATOMIC_DETAIL_X86_HAS_MFENCE 1
  40 #endif
  41
  42 #define BOOST_ATOMIC_INT8_LOCK_FREE 2
  43 #define BOOST_ATOMIC_INT16_LOCK_FREE 2
  44 #define BOOST_ATOMIC_INT32_LOCK_FREE 2
  45
  46 #if defined(_M_AMD64) || defined(BOOST_ATOMIC_DETAIL_X86_HAS_CMPXCHG8B)
  47 #define BOOST_ATOMIC_INT64_LOCK_FREE 2
  48 #endif
  49
  50 #if defined(BOOST_ATOMIC_DETAIL_X86_HAS_CMPXCHG16B) && (defined(BOOST_HAS_INT128) || !defined(BOOST_NO_ALIGNMENT))
  51 #define BOOST_ATOMIC_INT128_LOCK_FREE 2
  52 #endif
  53
  54 #define BOOST_ATOMIC_POINTER_LOCK_FREE 2
  55
  56 #define BOOST_ATOMIC_THREAD_FENCE 2
  57 #define BOOST_ATOMIC_SIGNAL_FENCE 2
  58
  59 #endif // BOOST_ATOMIC_DETAIL_CAPS_MSVC_X86_HPP_INCLUDED_