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[libc++] <experimental/simd> Add unary operators for class simd
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libcxx/test/std/experimental/simd/simd.class/simd_unary.pass.cpp
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//===----------------------------------------------------------------------===// | ||
// | ||
// 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 | ||
// | ||
//===----------------------------------------------------------------------===// | ||
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// UNSUPPORTED: c++03, c++11, c++14 | ||
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// Older versions of clang may encounter a backend error (see 0295c2ad): | ||
// Pass-by-value arguments with alignment greater than register width are not supported. | ||
// XFAIL: target=powerpc{{.*}}-ibm-{{.*}} && (clang-17 || clang-18) | ||
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// <experimental/simd> | ||
// | ||
// [simd.class] | ||
// simd& operator++() noexcept; | ||
// simd operator++(int) noexcept; | ||
// simd& operator--() noexcept; | ||
// simd operator--(int) noexcept; | ||
// mask_type operator!() const noexcept; | ||
// simd operator~() const noexcept; | ||
// simd operator+() const noexcept; | ||
// simd operator-() const noexcept; | ||
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#include "../test_utils.h" | ||
#include <experimental/simd> | ||
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namespace ex = std::experimental::parallelism_v2; | ||
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template <class T, std::size_t> | ||
struct CheckSimdPrefixIncrementOperator { | ||
template <class SimdAbi> | ||
void operator()() { | ||
constexpr std::size_t array_size = ex::simd_size_v<T, SimdAbi>; | ||
ex::simd<T, SimdAbi> origin_simd([](T i) { return i; }); | ||
static_assert(noexcept(++origin_simd)); | ||
std::array<T, array_size> expected_return_value, expected_value; | ||
for (size_t i = 0; i < array_size; ++i) { | ||
expected_return_value[i] = static_cast<T>(i) + 1; | ||
expected_value[i] = static_cast<T>(i) + 1; | ||
} | ||
assert_simd_values_equal<array_size>(++origin_simd, expected_return_value); | ||
assert_simd_values_equal<array_size>(origin_simd, expected_value); | ||
} | ||
}; | ||
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template <class T, std::size_t> | ||
struct CheckSimdPostfixIncrementOperator { | ||
template <class SimdAbi> | ||
void operator()() { | ||
constexpr std::size_t array_size = ex::simd_size_v<T, SimdAbi>; | ||
ex::simd<T, SimdAbi> origin_simd([](T i) { return i; }); | ||
static_assert(noexcept(origin_simd++)); | ||
std::array<T, array_size> expected_return_value, expected_value; | ||
for (size_t i = 0; i < array_size; ++i) { | ||
expected_return_value[i] = static_cast<T>(i); | ||
expected_value[i] = static_cast<T>(i) + 1; | ||
} | ||
assert_simd_values_equal<array_size>(origin_simd++, expected_return_value); | ||
assert_simd_values_equal<array_size>(origin_simd, expected_value); | ||
} | ||
}; | ||
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template <class T, std::size_t> | ||
struct CheckSimdPrefixDecrementOperator { | ||
template <class SimdAbi> | ||
void operator()() { | ||
constexpr std::size_t array_size = ex::simd_size_v<T, SimdAbi>; | ||
ex::simd<T, SimdAbi> origin_simd([](T i) { return i; }); | ||
static_assert(noexcept(--origin_simd)); | ||
std::array<T, array_size> expected_return_value, expected_value; | ||
for (size_t i = 0; i < array_size; ++i) { | ||
expected_return_value[i] = static_cast<T>(i) - 1; | ||
expected_value[i] = static_cast<T>(i) - 1; | ||
} | ||
assert_simd_values_equal<array_size>(--origin_simd, expected_return_value); | ||
assert_simd_values_equal<array_size>(origin_simd, expected_value); | ||
} | ||
}; | ||
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template <class T, std::size_t> | ||
struct CheckSimdPostfixDecrementOperator { | ||
template <class SimdAbi> | ||
void operator()() { | ||
constexpr std::size_t array_size = ex::simd_size_v<T, SimdAbi>; | ||
ex::simd<T, SimdAbi> origin_simd([](T i) { return i; }); | ||
static_assert(noexcept(origin_simd--)); | ||
std::array<T, array_size> expected_return_value, expected_value; | ||
for (size_t i = 0; i < array_size; ++i) { | ||
expected_return_value[i] = static_cast<T>(i); | ||
expected_value[i] = static_cast<T>(i) - 1; | ||
} | ||
assert_simd_values_equal<array_size>(origin_simd--, expected_return_value); | ||
assert_simd_values_equal<array_size>(origin_simd, expected_value); | ||
} | ||
}; | ||
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template <class T, std::size_t> | ||
struct CheckSimdNegationOperator { | ||
template <class SimdAbi> | ||
void operator()() { | ||
constexpr std::size_t array_size = ex::simd_size_v<T, SimdAbi>; | ||
ex::simd<T, SimdAbi> origin_simd([](T i) { return i; }); | ||
static_assert(noexcept(!origin_simd)); | ||
std::array<bool, array_size> expected_value; | ||
for (size_t i = 0; i < array_size; ++i) | ||
expected_value[i] = !static_cast<bool>(i); | ||
assert_simd_mask_values_equal<array_size>(!origin_simd, expected_value); | ||
} | ||
}; | ||
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template <class T, std::size_t> | ||
struct CheckSimdBitwiseNotOperator { | ||
template <class SimdAbi> | ||
void operator()() { | ||
constexpr std::size_t array_size = ex::simd_size_v<T, SimdAbi>; | ||
ex::simd<T, SimdAbi> origin_simd([](T i) { return i; }); | ||
static_assert(noexcept(~origin_simd)); | ||
std::array<T, array_size> expected_value; | ||
for (size_t i = 0; i < array_size; ++i) | ||
expected_value[i] = ~static_cast<T>(i); | ||
assert_simd_values_equal<array_size>(~origin_simd, expected_value); | ||
} | ||
}; | ||
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template <class T, std::size_t> | ||
struct CheckSimdPositiveSignOperator { | ||
template <class SimdAbi> | ||
void operator()() { | ||
constexpr std::size_t array_size = ex::simd_size_v<T, SimdAbi>; | ||
ex::simd<T, SimdAbi> origin_simd([](T i) { return i; }); | ||
static_assert(noexcept(+origin_simd)); | ||
std::array<T, array_size> expected_value; | ||
for (size_t i = 0; i < array_size; ++i) | ||
expected_value[i] = +static_cast<T>(i); | ||
assert_simd_values_equal<array_size>(+origin_simd, expected_value); | ||
} | ||
}; | ||
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template <class T, std::size_t> | ||
struct CheckSimdNegativeSignOperator { | ||
template <class SimdAbi> | ||
void operator()() { | ||
constexpr std::size_t array_size = ex::simd_size_v<T, SimdAbi>; | ||
ex::simd<T, SimdAbi> origin_simd([](T i) { return i; }); | ||
static_assert(noexcept(-origin_simd)); | ||
std::array<T, array_size> expected_value; | ||
for (size_t i = 0; i < array_size; ++i) | ||
expected_value[i] = -static_cast<T>(i); | ||
assert_simd_values_equal<array_size>(-origin_simd, expected_value); | ||
} | ||
}; | ||
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template <class T, class SimdAbi = ex::simd_abi::compatible<T>, class = void> | ||
struct has_bitwise_not_op : std::false_type {}; | ||
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template <class T, class SimdAbi> | ||
struct has_bitwise_not_op<T, SimdAbi, std::void_t<decltype(~std::declval<ex::simd<T, SimdAbi>>())>> : std::true_type {}; | ||
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template <class T, std::size_t> | ||
struct CheckSimdBitwiseNotTraits { | ||
template <class SimdAbi> | ||
void operator()() { | ||
// This function shall not participate in overload resolution unless | ||
// T is an integral type. | ||
if constexpr (std::is_integral_v<T>) | ||
static_assert(has_bitwise_not_op<T, SimdAbi>::value); | ||
// T is not an integral type. | ||
else | ||
static_assert(!has_bitwise_not_op<T, SimdAbi>::value); | ||
} | ||
}; | ||
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int main(int, char**) { | ||
test_all_simd_abi<CheckSimdPrefixIncrementOperator>(); | ||
test_all_simd_abi<CheckSimdPostfixIncrementOperator>(); | ||
test_all_simd_abi<CheckSimdPrefixDecrementOperator>(); | ||
test_all_simd_abi<CheckSimdPostfixDecrementOperator>(); | ||
test_all_simd_abi<CheckSimdNegationOperator>(); | ||
types::for_each(types::integer_types(), TestAllSimdAbiFunctor<CheckSimdBitwiseNotOperator>()); | ||
test_all_simd_abi<CheckSimdPositiveSignOperator>(); | ||
test_all_simd_abi<CheckSimdNegativeSignOperator>(); | ||
test_all_simd_abi<CheckSimdBitwiseNotTraits>(); | ||
return 0; | ||
} |