summaryrefslogtreecommitdiff
path: root/libcxx/include/__algorithm/pstl_transform.h
diff options
context:
space:
mode:
Diffstat (limited to 'libcxx/include/__algorithm/pstl_transform.h')
-rw-r--r--libcxx/include/__algorithm/pstl_transform.h129
1 files changed, 0 insertions, 129 deletions
diff --git a/libcxx/include/__algorithm/pstl_transform.h b/libcxx/include/__algorithm/pstl_transform.h
deleted file mode 100644
index 74a869583f51..000000000000
--- a/libcxx/include/__algorithm/pstl_transform.h
+++ /dev/null
@@ -1,129 +0,0 @@
-//===----------------------------------------------------------------------===//
-//
-// 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 _LIBCPP___ALGORITHM_PSTL_TRANSFORM_H
-#define _LIBCPP___ALGORITHM_PSTL_TRANSFORM_H
-
-#include <__algorithm/transform.h>
-#include <__config>
-#include <__iterator/iterator_traits.h>
-#include <__pstl/internal/parallel_backend.h>
-#include <__pstl/internal/unseq_backend_simd.h>
-#include <__type_traits/is_execution_policy.h>
-#include <__utility/terminate_on_exception.h>
-
-#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
-# pragma GCC system_header
-#endif
-
-#if !defined(_LIBCPP_HAS_NO_INCOMPLETE_PSTL) && _LIBCPP_STD_VER >= 17
-
-_LIBCPP_BEGIN_NAMESPACE_STD
-
-template <class _ExecutionPolicy,
- class _ForwardIterator,
- class _ForwardOutIterator,
- class _UnaryOperation,
- enable_if_t<is_execution_policy_v<__remove_cvref_t<_ExecutionPolicy>>, int> = 0>
-_LIBCPP_HIDE_FROM_ABI _ForwardOutIterator transform(
- _ExecutionPolicy&& __policy,
- _ForwardIterator __first,
- _ForwardIterator __last,
- _ForwardOutIterator __result,
- _UnaryOperation __op) {
- if constexpr (__is_parallel_execution_policy_v<_ExecutionPolicy> &&
- __is_cpp17_random_access_iterator<_ForwardIterator>::value &&
- __is_cpp17_random_access_iterator<_ForwardOutIterator>::value) {
- std::__terminate_on_exception([&] {
- __pstl::__par_backend::__parallel_for(
- __pstl::__internal::__par_backend_tag{},
- __policy,
- __first,
- __last,
- [&__policy, __op, __first, __result](_ForwardIterator __brick_first, _ForwardIterator __brick_last) {
- return std::transform(
- std::__remove_parallel_policy(__policy),
- __brick_first,
- __brick_last,
- __result + (__brick_first - __first),
- __op);
- });
- });
- return __result + (__last - __first);
- } else if constexpr (__is_unsequenced_execution_policy_v<_ExecutionPolicy> &&
- __is_cpp17_random_access_iterator<_ForwardIterator>::value &&
- __is_cpp17_random_access_iterator<_ForwardOutIterator>::value) {
- return __pstl::__unseq_backend::__simd_walk_2(
- __first,
- __last - __first,
- __result,
- [&](__iter_reference<_ForwardIterator> __in_value, __iter_reference<_ForwardOutIterator> __out_value) {
- __out_value = __op(__in_value);
- });
- } else {
- return std::transform(__first, __last, __result, __op);
- }
-}
-
-template <class _ExecutionPolicy,
- class _ForwardIterator1,
- class _ForwardIterator2,
- class _ForwardOutIterator,
- class _BinaryOperation,
- enable_if_t<is_execution_policy_v<__remove_cvref_t<_ExecutionPolicy>>, int> = 0>
-_LIBCPP_HIDE_FROM_ABI _ForwardOutIterator transform(
- _ExecutionPolicy&& __policy,
- _ForwardIterator1 __first1,
- _ForwardIterator1 __last1,
- _ForwardIterator2 __first2,
- _ForwardOutIterator __result,
- _BinaryOperation __op) {
- if constexpr (__is_parallel_execution_policy_v<_ExecutionPolicy> &&
- __is_cpp17_random_access_iterator<_ForwardIterator1>::value &&
- __is_cpp17_random_access_iterator<_ForwardIterator2>::value &&
- __is_cpp17_random_access_iterator<_ForwardOutIterator>::value) {
- std::__terminate_on_exception([&] {
- __pstl::__par_backend::__parallel_for(
- __pstl::__internal::__par_backend_tag{},
- __policy,
- __first1,
- __last1,
- [&__policy, __op, __first1, __first2, __result](
- _ForwardIterator1 __brick_first, _ForwardIterator1 __brick_last) {
- return std::transform(
- std::__remove_parallel_policy(__policy),
- __brick_first,
- __brick_last,
- __first2 + (__brick_first - __first1),
- __result + (__brick_first - __first1),
- __op);
- });
- });
- return __result + (__last1 - __first1);
- } else if constexpr (__is_unsequenced_execution_policy_v<_ExecutionPolicy> &&
- __is_cpp17_random_access_iterator<_ForwardIterator1>::value &&
- __is_cpp17_random_access_iterator<_ForwardIterator2>::value &&
- __is_cpp17_random_access_iterator<_ForwardOutIterator>::value) {
- return __pstl::__unseq_backend::__simd_walk_3(
- __first1,
- __last1 - __first1,
- __first2,
- __result,
- [&](__iter_reference<_ForwardIterator1> __in1,
- __iter_reference<_ForwardIterator2> __in2,
- __iter_reference<_ForwardOutIterator> __out) { __out = __op(__in1, __in2); });
- } else {
- return std::transform(__first1, __last1, __first2, __result, __op);
- }
-}
-
-_LIBCPP_END_NAMESPACE_STD
-
-#endif // !defined(_LIBCPP_HAS_NO_INCOMPLETE_PSTL) && _LIBCPP_STD_VER >= 17
-
-#endif // _LIBCPP___ALGORITHM_PSTL_TRANSFORM_H