diff options
Diffstat (limited to 'boost/atomic/detail/config.hpp')
| -rw-r--r-- | boost/atomic/detail/config.hpp | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/boost/atomic/detail/config.hpp b/boost/atomic/detail/config.hpp index 6b0e418693..489281c2b4 100644 --- a/boost/atomic/detail/config.hpp +++ b/boost/atomic/detail/config.hpp @@ -21,6 +21,30 @@ #pragma once #endif +#if defined(__has_builtin) +#if __has_builtin(__builtin_memcpy) +#define BOOST_ATOMIC_DETAIL_HAS_BUILTIN_MEMCPY +#endif +#if __has_builtin(__builtin_memcmp) +#define BOOST_ATOMIC_DETAIL_HAS_BUILTIN_MEMCMP +#endif +#elif defined(BOOST_GCC) +#define BOOST_ATOMIC_DETAIL_HAS_BUILTIN_MEMCPY +#define BOOST_ATOMIC_DETAIL_HAS_BUILTIN_MEMCMP +#endif + +#if defined(BOOST_ATOMIC_DETAIL_HAS_BUILTIN_MEMCPY) +#define BOOST_ATOMIC_DETAIL_MEMCPY __builtin_memcpy +#else +#define BOOST_ATOMIC_DETAIL_MEMCPY std::memcpy +#endif + +#if defined(BOOST_ATOMIC_DETAIL_HAS_BUILTIN_MEMCMP) +#define BOOST_ATOMIC_DETAIL_MEMCMP __builtin_memcmp +#else +#define BOOST_ATOMIC_DETAIL_MEMCMP std::memcmp +#endif + #if defined(__CUDACC__) // nvcc does not support alternatives in asm statement constraints #define BOOST_ATOMIC_DETAIL_NO_ASM_CONSTRAINT_ALTERNATIVES @@ -36,4 +60,16 @@ #define BOOST_ATOMIC_DETAIL_ASM_CLOBBER_CC_COMMA #endif +#if (defined(macintosh) || defined(__APPLE__) || defined(__APPLE_CC__)) && (defined(__GNUC__) && (__GNUC__ * 100 + __GNUC_MINOR__) < 403) +// This macro indicates we're using older binutils that don't support implied zero displacements for memory opereands, +// making code like this invalid: +// movl 4+(%%edx), %%eax +#define BOOST_ATOMIC_DETAIL_NO_ASM_IMPLIED_ZERO_DISPLACEMENTS +#endif + +#if defined(__clang__) || (defined(BOOST_GCC) && (BOOST_GCC+0) < 40500) +// This macro indicates that the compiler does not support allocating rax:rdx register pairs ("A") in asm blocks +#define BOOST_ATOMIC_DETAIL_NO_ASM_RAX_RDX_PAIRS +#endif + #endif // BOOST_ATOMIC_DETAIL_CONFIG_HPP_INCLUDED_ |