107 lines
4.0 KiB
C++
107 lines
4.0 KiB
C++
// -*- C++ -*-
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//===----------------------------------------------------------------------===//
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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 <__config>
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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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namespace __internal {
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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 __brick_uninitialized_move(
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_ForwardIterator __first,
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_ForwardIterator __last,
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_OutputIterator __result,
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/*vector=*/std::false_type) noexcept {
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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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::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 _RandomAccessIterator, typename _OutputIterator>
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_OutputIterator __brick_uninitialized_move(
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_RandomAccessIterator __first,
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_RandomAccessIterator __last,
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_OutputIterator __result,
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/*vector=*/std::true_type) noexcept {
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using __ValueType = typename std::iterator_traits<_OutputIterator>::value_type;
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using _ReferenceType1 = typename std::iterator_traits<_RandomAccessIterator>::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, [](_ReferenceType1 __x, _ReferenceType2 __y) {
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::new (std::addressof(__y)) __ValueType(std::move(__x));
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});
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}
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template <typename _Iterator>
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void __brick_destroy(_Iterator __first, _Iterator __last, /*vector*/ std::false_type) noexcept {
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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 _RandomAccessIterator>
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void __brick_destroy(_RandomAccessIterator __first, _RandomAccessIterator __last, /*vector*/ std::true_type) noexcept {
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using _ValueType = typename std::iterator_traits<_RandomAccessIterator>::value_type;
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using _ReferenceType = typename std::iterator_traits<_RandomAccessIterator>::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 __brick_uninitialized_copy(
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_ForwardIterator __first,
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_ForwardIterator __last,
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_OutputIterator __result,
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/*vector=*/std::false_type) noexcept {
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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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::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 _RandomAccessIterator, typename _OutputIterator>
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_OutputIterator __brick_uninitialized_copy(
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_RandomAccessIterator __first,
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_RandomAccessIterator __last,
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_OutputIterator __result,
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/*vector=*/std::true_type) noexcept {
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using __ValueType = typename std::iterator_traits<_OutputIterator>::value_type;
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using _ReferenceType1 = typename std::iterator_traits<_RandomAccessIterator>::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, [](_ReferenceType1 __x, _ReferenceType2 __y) {
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::new (std::addressof(__y)) __ValueType(__x);
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});
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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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