diff options
Diffstat (limited to 'contrib/llvm-project/libcxx/include/__bit/byteswap.h')
| -rw-r--r-- | contrib/llvm-project/libcxx/include/__bit/byteswap.h | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/contrib/llvm-project/libcxx/include/__bit/byteswap.h b/contrib/llvm-project/libcxx/include/__bit/byteswap.h index a1e1b530975e..20045d6fd43c 100644 --- a/contrib/llvm-project/libcxx/include/__bit/byteswap.h +++ b/contrib/llvm-project/libcxx/include/__bit/byteswap.h @@ -24,7 +24,6 @@ _LIBCPP_BEGIN_NAMESPACE_STD template <integral _Tp> _LIBCPP_NODISCARD_EXT _LIBCPP_HIDE_FROM_ABI constexpr _Tp byteswap(_Tp __val) noexcept { - if constexpr (sizeof(_Tp) == 1) { return __val; } else if constexpr (sizeof(_Tp) == 2) { @@ -33,15 +32,15 @@ _LIBCPP_NODISCARD_EXT _LIBCPP_HIDE_FROM_ABI constexpr _Tp byteswap(_Tp __val) no return __builtin_bswap32(__val); } else if constexpr (sizeof(_Tp) == 8) { return __builtin_bswap64(__val); -#ifndef _LIBCPP_HAS_NO_INT128 +# ifndef _LIBCPP_HAS_NO_INT128 } else if constexpr (sizeof(_Tp) == 16) { -#if __has_builtin(__builtin_bswap128) +# if __has_builtin(__builtin_bswap128) return __builtin_bswap128(__val); -#else +# else return static_cast<_Tp>(byteswap(static_cast<uint64_t>(__val))) << 64 | static_cast<_Tp>(byteswap(static_cast<uint64_t>(__val >> 64))); -#endif // __has_builtin(__builtin_bswap128) -#endif // _LIBCPP_HAS_NO_INT128 +# endif // __has_builtin(__builtin_bswap128) +# endif // _LIBCPP_HAS_NO_INT128 } else { static_assert(sizeof(_Tp) == 0, "byteswap is unimplemented for integral types of this size"); } |