77 lines
2.5 KiB
C++
77 lines
2.5 KiB
C++
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/*
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* Distributed under the Boost Software License, Version 1.0.
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* (See accompanying file LICENSE_1_0.txt or copy at
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* http://www.boost.org/LICENSE_1_0.txt)
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*
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* Copyright (c) 2012 Hartmut Kaiser
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* Copyright (c) 2014 Andrey Semashev
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*/
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/*!
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* \file atomic/detail/config.hpp
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*
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* This header defines configuraion macros for Boost.Atomic
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*/
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#ifndef BOOST_ATOMIC_DETAIL_CONFIG_HPP_INCLUDED_
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#define BOOST_ATOMIC_DETAIL_CONFIG_HPP_INCLUDED_
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#include <boost/config.hpp>
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#ifdef BOOST_HAS_PRAGMA_ONCE
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#pragma once
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#endif
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#if defined(__has_builtin)
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#if __has_builtin(__builtin_memcpy)
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#define BOOST_ATOMIC_DETAIL_HAS_BUILTIN_MEMCPY
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#endif
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#if __has_builtin(__builtin_memcmp)
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#define BOOST_ATOMIC_DETAIL_HAS_BUILTIN_MEMCMP
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#endif
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#elif defined(BOOST_GCC)
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#define BOOST_ATOMIC_DETAIL_HAS_BUILTIN_MEMCPY
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#define BOOST_ATOMIC_DETAIL_HAS_BUILTIN_MEMCMP
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#endif
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#if defined(BOOST_ATOMIC_DETAIL_HAS_BUILTIN_MEMCPY)
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#define BOOST_ATOMIC_DETAIL_MEMCPY __builtin_memcpy
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#else
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#define BOOST_ATOMIC_DETAIL_MEMCPY std::memcpy
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#endif
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#if defined(BOOST_ATOMIC_DETAIL_HAS_BUILTIN_MEMCMP)
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#define BOOST_ATOMIC_DETAIL_MEMCMP __builtin_memcmp
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#else
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#define BOOST_ATOMIC_DETAIL_MEMCMP std::memcmp
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#endif
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#if defined(__CUDACC__)
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// nvcc does not support alternatives in asm statement constraints
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#define BOOST_ATOMIC_DETAIL_NO_ASM_CONSTRAINT_ALTERNATIVES
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// nvcc does not support condition code register ("cc") clobber in asm statements
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#define BOOST_ATOMIC_DETAIL_NO_ASM_CLOBBER_CC
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#endif
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#if !defined(BOOST_ATOMIC_DETAIL_NO_ASM_CLOBBER_CC)
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#define BOOST_ATOMIC_DETAIL_ASM_CLOBBER_CC "cc"
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#define BOOST_ATOMIC_DETAIL_ASM_CLOBBER_CC_COMMA "cc",
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#else
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#define BOOST_ATOMIC_DETAIL_ASM_CLOBBER_CC
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#define BOOST_ATOMIC_DETAIL_ASM_CLOBBER_CC_COMMA
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#endif
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#if ((defined(macintosh) || defined(__APPLE__) || defined(__APPLE_CC__)) && (defined(__GNUC__) && (__GNUC__ * 100 + __GNUC_MINOR__) < 403)) ||\
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defined(__SUNPRO_CC)
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// This macro indicates we're using older binutils that don't support implied zero displacements for memory opereands,
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// making code like this invalid:
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// movl 4+(%%edx), %%eax
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#define BOOST_ATOMIC_DETAIL_NO_ASM_IMPLIED_ZERO_DISPLACEMENTS
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#endif
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#if defined(__clang__) || (defined(BOOST_GCC) && (BOOST_GCC+0) < 40500) || defined(__SUNPRO_CC)
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// This macro indicates that the compiler does not support allocating rax:rdx register pairs ("A") in asm blocks
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#define BOOST_ATOMIC_DETAIL_NO_ASM_RAX_RDX_PAIRS
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#endif
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#endif // BOOST_ATOMIC_DETAIL_CONFIG_HPP_INCLUDED_
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