e957b86ca2
From llvm-project/pstl @ 0b2e0e80d96 libstdc++-v3/ChangeLog: * include/pstl/algorithm_impl.h: Update file. * include/pstl/execution_impl.h: Likewise. * include/pstl/glue_algorithm_impl.h: Likewise. * include/pstl/glue_memory_impl.h: Likewise. * include/pstl/glue_numeric_impl.h: Likewise. * include/pstl/memory_impl.h: Likewise. * include/pstl/numeric_impl.h: Likewise. * include/pstl/parallel_backend.h: Likewise. * include/pstl/parallel_backend_serial.h: Likewise. * include/pstl/parallel_backend_tbb.h: Likewise. * include/pstl/parallel_backend_utils.h: Likewise. * include/pstl/pstl_config.h: Likewise. * include/pstl/unseq_backend_simd.h: Likewise.
108 lines
4.0 KiB
C++
108 lines
4.0 KiB
C++
// -*- C++ -*-
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//===-- memory_impl.h -----------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef _PSTL_MEMORY_IMPL_H
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#define _PSTL_MEMORY_IMPL_H
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#include <iterator>
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#include "unseq_backend_simd.h"
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namespace __pstl
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{
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namespace __internal
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{
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//------------------------------------------------------------------------
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// uninitialized_move
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//------------------------------------------------------------------------
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template <typename _ForwardIterator, typename _OutputIterator>
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_OutputIterator
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__brick_uninitialized_move(_ForwardIterator __first, _ForwardIterator __last, _OutputIterator __result,
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/*vector=*/std::false_type) noexcept
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{
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using _ValueType = typename std::iterator_traits<_OutputIterator>::value_type;
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for (; __first != __last; ++__first, ++__result)
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{
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::new (std::addressof(*__result)) _ValueType(std::move(*__first));
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}
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return __result;
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}
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template <typename _ForwardIterator, typename _OutputIterator>
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_OutputIterator
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__brick_uninitialized_move(_ForwardIterator __first, _ForwardIterator __last, _OutputIterator __result,
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/*vector=*/std::true_type) noexcept
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{
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using __ValueType = typename std::iterator_traits<_OutputIterator>::value_type;
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using _ReferenceType1 = typename std::iterator_traits<_ForwardIterator>::reference;
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using _ReferenceType2 = typename std::iterator_traits<_OutputIterator>::reference;
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return __unseq_backend::__simd_walk_2(
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__first, __last - __first, __result,
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[](_ReferenceType1 __x, _ReferenceType2 __y) { ::new (std::addressof(__y)) __ValueType(std::move(__x)); });
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}
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template <typename _Iterator>
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void
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__brick_destroy(_Iterator __first, _Iterator __last, /*vector*/ std::false_type) noexcept
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{
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using _ValueType = typename std::iterator_traits<_Iterator>::value_type;
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for (; __first != __last; ++__first)
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__first->~_ValueType();
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}
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template <typename _Iterator>
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void
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__brick_destroy(_Iterator __first, _Iterator __last, /*vector*/ std::true_type) noexcept
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{
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using _ValueType = typename std::iterator_traits<_Iterator>::value_type;
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using _ReferenceType = typename std::iterator_traits<_Iterator>::reference;
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__unseq_backend::__simd_walk_1(__first, __last - __first, [](_ReferenceType __x) { __x.~_ValueType(); });
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}
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//------------------------------------------------------------------------
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// uninitialized copy
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//------------------------------------------------------------------------
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template <typename _ForwardIterator, typename _OutputIterator>
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_OutputIterator
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__brick_uninitialized_copy(_ForwardIterator __first, _ForwardIterator __last, _OutputIterator __result,
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/*vector=*/std::false_type) noexcept
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{
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using _ValueType = typename std::iterator_traits<_OutputIterator>::value_type;
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for (; __first != __last; ++__first, ++__result)
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{
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::new (std::addressof(*__result)) _ValueType(*__first);
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}
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return __result;
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}
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template <typename _ForwardIterator, typename _OutputIterator>
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_OutputIterator
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__brick_uninitialized_copy(_ForwardIterator __first, _ForwardIterator __last, _OutputIterator __result,
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/*vector=*/std::true_type) noexcept
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{
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using __ValueType = typename std::iterator_traits<_OutputIterator>::value_type;
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using _ReferenceType1 = typename std::iterator_traits<_ForwardIterator>::reference;
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using _ReferenceType2 = typename std::iterator_traits<_OutputIterator>::reference;
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return __unseq_backend::__simd_walk_2(
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__first, __last - __first, __result,
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[](_ReferenceType1 __x, _ReferenceType2 __y) { ::new (std::addressof(__y)) __ValueType(__x); });
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}
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} // namespace __internal
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} // namespace __pstl
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#endif /* _PSTL_MEMORY_IMPL_H */
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