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57 lines
1.2 KiB
C++
57 lines
1.2 KiB
C++
// SPDX-License-Identifier: MIT
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// Copyright (c) 2018-2022, Advanced Micro Devices, Inc. All rights reserved.
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#pragma once
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#include "ck/ck.hpp"
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#include "integral_constant.hpp"
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#include "sequence.hpp"
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#include "tuple.hpp"
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namespace ck {
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template <typename T>
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struct is_known_at_compile_time;
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template <>
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struct is_known_at_compile_time<index_t>
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{
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static constexpr bool value = false;
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};
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template <>
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struct is_known_at_compile_time<long_index_t>
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{
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static constexpr bool value = false;
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};
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template <typename T, T X>
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struct is_known_at_compile_time<integral_constant<T, X>>
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{
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static constexpr bool value = true;
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};
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template <index_t... Is>
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struct is_known_at_compile_time<Sequence<Is...>>
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{
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static constexpr bool value = true;
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};
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template <typename... Ts>
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struct is_known_at_compile_time<Tuple<Ts...>>
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{
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__host__ __device__ static constexpr bool IsKnownAtCompileTime()
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{
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return container_reduce(
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Tuple<Ts...>{},
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[](auto x, bool r) {
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return is_known_at_compile_time<remove_cvref_t<decltype(x)>>::value & r;
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},
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true);
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}
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static constexpr bool value = IsKnownAtCompileTime();
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};
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} // namespace ck
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