| // -*- C++ -*- |
| //===----------------------------------------------------------------------===// |
| // |
| // 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_EXPERIMENTAL___SIMD_SCALAR_H |
| #define _LIBCPP_EXPERIMENTAL___SIMD_SCALAR_H |
| |
| #include <__assert> |
| #include <cstddef> |
| #include <experimental/__config> |
| #include <experimental/__simd/declaration.h> |
| #include <experimental/__simd/traits.h> |
| |
| #if _LIBCPP_STD_VER >= 17 && defined(_LIBCPP_ENABLE_EXPERIMENTAL) |
| |
| _LIBCPP_BEGIN_NAMESPACE_EXPERIMENTAL |
| inline namespace parallelism_v2 { |
| namespace simd_abi { |
| struct __scalar { |
| static constexpr size_t __simd_size = 1; |
| }; |
| } // namespace simd_abi |
| |
| template <> |
| inline constexpr bool is_abi_tag_v<simd_abi::__scalar> = true; |
| |
| template <class _Tp> |
| struct __simd_storage<_Tp, simd_abi::__scalar> { |
| _Tp __data; |
| |
| _LIBCPP_HIDE_FROM_ABI _Tp __get([[maybe_unused]] size_t __idx) const noexcept { |
| _LIBCPP_ASSERT_UNCATEGORIZED(__idx == 0, "Index is out of bounds"); |
| return __data; |
| } |
| _LIBCPP_HIDE_FROM_ABI void __set([[maybe_unused]] size_t __idx, _Tp __v) noexcept { |
| _LIBCPP_ASSERT_UNCATEGORIZED(__idx == 0, "Index is out of bounds"); |
| __data = __v; |
| } |
| }; |
| |
| template <class _Tp> |
| struct __mask_storage<_Tp, simd_abi::__scalar> : __simd_storage<bool, simd_abi::__scalar> {}; |
| |
| template <class _Tp> |
| struct __simd_operations<_Tp, simd_abi::__scalar> { |
| using _SimdStorage = __simd_storage<_Tp, simd_abi::__scalar>; |
| using _MaskStorage = __mask_storage<_Tp, simd_abi::__scalar>; |
| |
| static _LIBCPP_HIDE_FROM_ABI _SimdStorage __broadcast(_Tp __v) noexcept { return {__v}; } |
| |
| template <class _Generator> |
| static _LIBCPP_HIDE_FROM_ABI _SimdStorage __generate(_Generator&& __g) noexcept { |
| return {__g(std::integral_constant<size_t, 0>())}; |
| } |
| |
| template <class _Up> |
| static _LIBCPP_HIDE_FROM_ABI void __load(_SimdStorage& __s, const _Up* __mem) noexcept { |
| __s.__data = static_cast<_Tp>(__mem[0]); |
| } |
| }; |
| |
| template <class _Tp> |
| struct __mask_operations<_Tp, simd_abi::__scalar> { |
| using _MaskStorage = __mask_storage<_Tp, simd_abi::__scalar>; |
| |
| static _LIBCPP_HIDE_FROM_ABI _MaskStorage __broadcast(bool __v) noexcept { return {__v}; } |
| |
| static _LIBCPP_HIDE_FROM_ABI void __load(_MaskStorage& __s, const bool* __mem) noexcept { __s.__data = __mem[0]; } |
| }; |
| |
| } // namespace parallelism_v2 |
| _LIBCPP_END_NAMESPACE_EXPERIMENTAL |
| |
| #endif // _LIBCPP_STD_VER >= 17 && defined(_LIBCPP_ENABLE_EXPERIMENTAL) |
| #endif // _LIBCPP_EXPERIMENTAL___SIMD_SCALAR_H |