15f757f3fSDimitry Andric // -*- C++ -*- 25f757f3fSDimitry Andric //===----------------------------------------------------------------------===// 35f757f3fSDimitry Andric // 45f757f3fSDimitry Andric // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 55f757f3fSDimitry Andric // See https://llvm.org/LICENSE.txt for license information. 65f757f3fSDimitry Andric // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 75f757f3fSDimitry Andric // 85f757f3fSDimitry Andric //===----------------------------------------------------------------------===// 95f757f3fSDimitry Andric 105f757f3fSDimitry Andric #ifndef _LIBCPP_EXPERIMENTAL___SIMD_SIMD_MASK_H 115f757f3fSDimitry Andric #define _LIBCPP_EXPERIMENTAL___SIMD_SIMD_MASK_H 125f757f3fSDimitry Andric 135f757f3fSDimitry Andric #include <__type_traits/is_same.h> 145f757f3fSDimitry Andric #include <cstddef> 155f757f3fSDimitry Andric #include <experimental/__config> 165f757f3fSDimitry Andric #include <experimental/__simd/declaration.h> 175f757f3fSDimitry Andric #include <experimental/__simd/reference.h> 185f757f3fSDimitry Andric #include <experimental/__simd/traits.h> 195f757f3fSDimitry Andric 205f757f3fSDimitry Andric #if _LIBCPP_STD_VER >= 17 && defined(_LIBCPP_ENABLE_EXPERIMENTAL) 215f757f3fSDimitry Andric 225f757f3fSDimitry Andric _LIBCPP_BEGIN_NAMESPACE_EXPERIMENTAL 235f757f3fSDimitry Andric inline namespace parallelism_v2 { 245f757f3fSDimitry Andric 255f757f3fSDimitry Andric // class template simd_mask [simd.mask.class] 265f757f3fSDimitry Andric // TODO: implement simd_mask class 275f757f3fSDimitry Andric template <class _Tp, class _Abi> 285f757f3fSDimitry Andric class simd_mask { 295f757f3fSDimitry Andric using _Impl = __mask_operations<_Tp, _Abi>; 305f757f3fSDimitry Andric using _Storage = typename _Impl::_MaskStorage; 315f757f3fSDimitry Andric 325f757f3fSDimitry Andric _Storage __s_; 335f757f3fSDimitry Andric 345f757f3fSDimitry Andric public: 355f757f3fSDimitry Andric using value_type = bool; 365f757f3fSDimitry Andric using reference = __simd_reference<_Tp, _Storage, value_type>; 375f757f3fSDimitry Andric using simd_type = simd<_Tp, _Abi>; 385f757f3fSDimitry Andric using abi_type = _Abi; 395f757f3fSDimitry Andric 405f757f3fSDimitry Andric static _LIBCPP_HIDE_FROM_ABI constexpr size_t size() noexcept { return simd_type::size(); } 415f757f3fSDimitry Andric 425f757f3fSDimitry Andric _LIBCPP_HIDE_FROM_ABI simd_mask() noexcept = default; 435f757f3fSDimitry Andric 445f757f3fSDimitry Andric // broadcast constructor 455f757f3fSDimitry Andric _LIBCPP_HIDE_FROM_ABI explicit simd_mask(value_type __v) noexcept : __s_(_Impl::__broadcast(__v)) {} 465f757f3fSDimitry Andric 475f757f3fSDimitry Andric // implicit type conversion constructor 485f757f3fSDimitry Andric template <class _Up, enable_if_t<!is_same_v<_Up, _Tp> && is_same_v<abi_type, simd_abi::fixed_size<size()>>, int> = 0> 495f757f3fSDimitry Andric _LIBCPP_HIDE_FROM_ABI simd_mask(const simd_mask<_Up, simd_abi::fixed_size<size()>>& __v) noexcept { 505f757f3fSDimitry Andric for (size_t __i = 0; __i < size(); __i++) { 515f757f3fSDimitry Andric (*this)[__i] = __v[__i]; 525f757f3fSDimitry Andric } 535f757f3fSDimitry Andric } 545f757f3fSDimitry Andric 557a6dacacSDimitry Andric // load constructor 567a6dacacSDimitry Andric template <class _Flags, enable_if_t<is_simd_flag_type_v<_Flags>, int> = 0> 577a6dacacSDimitry Andric _LIBCPP_HIDE_FROM_ABI simd_mask(const value_type* __mem, _Flags) { 587a6dacacSDimitry Andric _Impl::__load(__s_, _Flags::template __apply<simd_mask>(__mem)); 597a6dacacSDimitry Andric } 607a6dacacSDimitry Andric 61*0fca6ea1SDimitry Andric // copy functions 62*0fca6ea1SDimitry Andric template <class _Flags, enable_if_t<is_simd_flag_type_v<_Flags>, int> = 0> 63*0fca6ea1SDimitry Andric _LIBCPP_HIDE_FROM_ABI void copy_from(const value_type* __mem, _Flags) { 64*0fca6ea1SDimitry Andric _Impl::__load(__s_, _Flags::template __apply<simd_mask>(__mem)); 65*0fca6ea1SDimitry Andric } 66*0fca6ea1SDimitry Andric 67*0fca6ea1SDimitry Andric template <class _Flags, enable_if_t<is_simd_flag_type_v<_Flags>, int> = 0> 68*0fca6ea1SDimitry Andric _LIBCPP_HIDE_FROM_ABI void copy_to(value_type* __mem, _Flags) const { 69*0fca6ea1SDimitry Andric _Impl::__store(__s_, _Flags::template __apply<simd_mask>(__mem)); 70*0fca6ea1SDimitry Andric } 71*0fca6ea1SDimitry Andric 725f757f3fSDimitry Andric // scalar access [simd.mask.subscr] 735f757f3fSDimitry Andric _LIBCPP_HIDE_FROM_ABI reference operator[](size_t __i) noexcept { return reference(__s_, __i); } 745f757f3fSDimitry Andric _LIBCPP_HIDE_FROM_ABI value_type operator[](size_t __i) const noexcept { return __s_.__get(__i); } 755f757f3fSDimitry Andric }; 765f757f3fSDimitry Andric 775f757f3fSDimitry Andric template <class _Tp, class _Abi> 785f757f3fSDimitry Andric inline constexpr bool is_simd_mask_v<simd_mask<_Tp, _Abi>> = true; 795f757f3fSDimitry Andric 805f757f3fSDimitry Andric template <class _Tp> 815f757f3fSDimitry Andric using native_simd_mask = simd_mask<_Tp, simd_abi::native<_Tp>>; 825f757f3fSDimitry Andric 835f757f3fSDimitry Andric template <class _Tp, int _Np> 845f757f3fSDimitry Andric using fixed_size_simd_mask = simd_mask<_Tp, simd_abi::fixed_size<_Np>>; 855f757f3fSDimitry Andric 865f757f3fSDimitry Andric } // namespace parallelism_v2 875f757f3fSDimitry Andric _LIBCPP_END_NAMESPACE_EXPERIMENTAL 885f757f3fSDimitry Andric 895f757f3fSDimitry Andric #endif // _LIBCPP_STD_VER >= 17 && defined(_LIBCPP_ENABLE_EXPERIMENTAL) 905f757f3fSDimitry Andric #endif // _LIBCPP_EXPERIMENTAL___SIMD_SIMD_MASK_H 91