3491119f9b
Mostly unused parameter, unused local typedefs and shadowed declarations. This massaging it necessary if we want to be able to run the tests under the libc++ lit configuration. llvm-svn: 363872
131 lines
4.1 KiB
C++
131 lines
4.1 KiB
C++
// -*- C++ -*-
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//===-- reverse_copy.pass.cpp ---------------------------------------------===//
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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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#include "support/pstl_test_config.h"
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#include <iterator>
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#include <execution>
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#include <algorithm>
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#include "support/utils.h"
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using namespace TestUtils;
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template <typename T>
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struct wrapper
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{
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T t;
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wrapper() {}
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explicit wrapper(T t_) : t(t_) {}
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wrapper&
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operator=(const T& t_)
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{
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t = t_;
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return *this;
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}
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bool
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operator==(const wrapper& t_) const
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{
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return t == t_.t;
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}
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};
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template <typename T1, typename T2>
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bool
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eq(const wrapper<T1>& a, const wrapper<T2>& b)
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{
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return a.t == b.t;
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}
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template <typename T1, typename T2>
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bool
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eq(const T1& a, const T2& b)
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{
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return a == b;
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}
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// we need to save state here, because we need to test with different types of iterators
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// due to the caller invoke_on_all_policies does forcing modification passed iterator type to cover additional usage cases.
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template <typename Iterator>
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struct test_one_policy
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{
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Iterator data_b;
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Iterator data_e;
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test_one_policy(Iterator b, Iterator e) : data_b(b), data_e(e) {}
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#if _PSTL_ICC_17_VC141_TEST_SIMD_LAMBDA_DEBUG_32_BROKEN || \
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_PSTL_ICC_16_VC14_TEST_SIMD_LAMBDA_DEBUG_32_BROKEN // dummy specialization by policy type, in case of broken configuration
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template <typename Iterator1>
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typename std::enable_if<is_same_iterator_category<Iterator1, std::random_access_iterator_tag>::value, void>::type
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operator()(pstl::execution::unsequenced_policy, Iterator1 actual_b, Iterator1 actual_e)
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{
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}
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template <typename Iterator1>
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typename std::enable_if<is_same_iterator_category<Iterator1, std::random_access_iterator_tag>::value, void>::type
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operator()(pstl::execution::parallel_unsequenced_policy, Iterator1 actual_b, Iterator1 actual_e)
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{
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}
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#endif
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template <typename ExecutionPolicy, typename Iterator1>
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void
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operator()(ExecutionPolicy&& exec, Iterator1 actual_b, Iterator1 actual_e)
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{
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using namespace std;
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using T = typename iterator_traits<Iterator1>::value_type;
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fill(actual_b, actual_e, T(-123));
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Iterator1 actual_return = reverse_copy(exec, data_b, data_e, actual_b);
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EXPECT_TRUE(actual_return == actual_e, "wrong result of reverse_copy");
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const auto n = std::distance(data_b, data_e);
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Sequence<T> res(n);
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std::copy(std::reverse_iterator<Iterator>(data_e), std::reverse_iterator<Iterator>(data_b), res.begin());
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EXPECT_EQ_N(res.begin(), actual_b, n, "wrong effect of reverse_copy");
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}
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};
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template <typename T1, typename T2>
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void
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test()
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{
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typedef typename Sequence<T1>::iterator iterator_type;
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typedef typename Sequence<T1>::const_bidirectional_iterator cbi_iterator_type;
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const std::size_t max_len = 100000;
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Sequence<T2> actual(max_len);
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Sequence<T1> data(max_len, [](std::size_t i) { return T1(i); });
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for (std::size_t len = 0; len < max_len; len = len <= 16 ? len + 1 : std::size_t(3.1415 * len))
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{
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invoke_on_all_policies(test_one_policy<iterator_type>(data.begin(), data.begin() + len), actual.begin(),
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actual.begin() + len);
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invoke_on_all_policies(test_one_policy<cbi_iterator_type>(data.cbibegin(), std::next(data.cbibegin(), len)),
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actual.begin(), actual.begin() + len);
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}
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}
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int32_t
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main()
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{
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// clang-3.8 fails to correctly auto vectorize the loop in some cases of different types of container's elements,
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// for example: int32_t and int8_t. This issue isn't detected for clang-3.9 and newer versions.
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test<int16_t, int8_t>();
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test<uint16_t, float32_t>();
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test<float64_t, int64_t>();
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test<wrapper<float64_t>, wrapper<float64_t>>();
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std::cout << done() << std::endl;
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return 0;
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}
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