diff options
Diffstat (limited to 'contrib/llvm-project/libcxx/include/__pstl/internal/execution_impl.h')
| -rw-r--r-- | contrib/llvm-project/libcxx/include/__pstl/internal/execution_impl.h | 97 |
1 files changed, 0 insertions, 97 deletions
diff --git a/contrib/llvm-project/libcxx/include/__pstl/internal/execution_impl.h b/contrib/llvm-project/libcxx/include/__pstl/internal/execution_impl.h deleted file mode 100644 index c3a7405d393f..000000000000 --- a/contrib/llvm-project/libcxx/include/__pstl/internal/execution_impl.h +++ /dev/null @@ -1,97 +0,0 @@ -// -*- C++ -*- -//===----------------------------------------------------------------------===// -// -// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. -// See https://llvm.org/LICENSE.txt for license information. -// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception -// -//===----------------------------------------------------------------------===// - -#ifndef _PSTL_EXECUTION_IMPL_H -#define _PSTL_EXECUTION_IMPL_H - -#include <__config> -#include <__iterator/iterator_traits.h> -#include <__type_traits/conditional.h> -#include <__type_traits/conjunction.h> -#include <__type_traits/decay.h> -#include <__type_traits/integral_constant.h> -#include <__type_traits/is_base_of.h> - -#include <__pstl/internal/execution_defs.h> - -#if !defined(_LIBCPP_HAS_NO_INCOMPLETE_PSTL) && _LIBCPP_STD_VER >= 17 - -namespace __pstl { -namespace __internal { - -template <typename _IteratorTag, typename... _IteratorTypes> -using __are_iterators_of = std::conjunction< - std::is_base_of<_IteratorTag, typename std::iterator_traits<std::decay_t<_IteratorTypes>>::iterator_category>...>; - -template <typename... _IteratorTypes> -using __are_random_access_iterators = __are_iterators_of<std::random_access_iterator_tag, _IteratorTypes...>; - -struct __serial_backend_tag {}; -struct __tbb_backend_tag {}; -struct __openmp_backend_tag {}; - -# if defined(_PSTL_PAR_BACKEND_TBB) -using __par_backend_tag = __tbb_backend_tag; -# elif defined(_PSTL_PAR_BACKEND_OPENMP) -using __par_backend_tag = __openmp_backend_tag; -# elif defined(_PSTL_PAR_BACKEND_SERIAL) -using __par_backend_tag = __serial_backend_tag; -# else -# error "A parallel backend must be specified"; -# endif - -template <class _IsVector> -struct __serial_tag { - using __is_vector = _IsVector; -}; - -template <class _IsVector> -struct __parallel_tag { - using __is_vector = _IsVector; - // backend tag can be change depending on - // TBB availability in the environment - using __backend_tag = __par_backend_tag; -}; - -template <class _IsVector, class... _IteratorTypes> -using __tag_type = - typename std::conditional<__internal::__are_random_access_iterators<_IteratorTypes...>::value, - __parallel_tag<_IsVector>, - __serial_tag<_IsVector>>::type; - -template <class... _IteratorTypes> -_LIBCPP_HIDE_FROM_ABI __serial_tag</*_IsVector = */ std::false_type> -__select_backend(__pstl::execution::sequenced_policy, _IteratorTypes&&...) { - return {}; -} - -template <class... _IteratorTypes> -_LIBCPP_HIDE_FROM_ABI __serial_tag<__internal::__are_random_access_iterators<_IteratorTypes...>> -__select_backend(__pstl::execution::unsequenced_policy, _IteratorTypes&&...) { - return {}; -} - -template <class... _IteratorTypes> -_LIBCPP_HIDE_FROM_ABI __tag_type</*_IsVector = */ std::false_type, _IteratorTypes...> -__select_backend(__pstl::execution::parallel_policy, _IteratorTypes&&...) { - return {}; -} - -template <class... _IteratorTypes> -_LIBCPP_HIDE_FROM_ABI __tag_type<__internal::__are_random_access_iterators<_IteratorTypes...>, _IteratorTypes...> -__select_backend(__pstl::execution::parallel_unsequenced_policy, _IteratorTypes&&...) { - return {}; -} - -} // namespace __internal -} // namespace __pstl - -#endif // !defined(_LIBCPP_HAS_NO_INCOMPLETE_PSTL) && _LIBCPP_STD_VER >= 17 - -#endif /* _PSTL_EXECUTION_IMPL_H */ |
