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[libc++][NFC] Refactor <experimental/simd> a bit to simplify dependencies
1 parent 2fe94ce commit 6a9f6de

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12 files changed

+66
-123
lines changed

12 files changed

+66
-123
lines changed

‎libcxx/include/CMakeLists.txt

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@@ -914,10 +914,8 @@ set(files
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expected
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experimental/__config
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experimental/__memory
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experimental/__simd/abi_tag.h
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experimental/__simd/aligned_tag.h
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experimental/__simd/declaration.h
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experimental/__simd/internal_declaration.h
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experimental/__simd/reference.h
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experimental/__simd/scalar.h
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experimental/__simd/simd.h

‎libcxx/include/experimental/__simd/abi_tag.h

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This file was deleted.

‎libcxx/include/experimental/__simd/aligned_tag.h

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@@ -10,10 +10,10 @@
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#ifndef _LIBCPP_EXPERIMENTAL___SIMD_ALIGNED_TAG_H
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#define _LIBCPP_EXPERIMENTAL___SIMD_ALIGNED_TAG_H
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#include <__bit/bit_ceil.h>
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#include <__memory/assume_aligned.h>
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#include <cstddef>
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#include <experimental/__config>
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#include <experimental/__simd/traits.h>
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#if _LIBCPP_STD_VER >= 17 && defined(_LIBCPP_ENABLE_EXPERIMENTAL)
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@@ -30,16 +30,22 @@ struct element_aligned_tag {
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}
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};
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template <>
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inline constexpr bool is_simd_flag_type_v<element_aligned_tag> = true;
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struct vector_aligned_tag {
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template <class _Tp, class _Up = typename _Tp::value_type>
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static constexpr size_t __alignment = std::__bit_ceil(sizeof(_Up) * _Tp::size());
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static constexpr size_t __alignment = memory_alignment_v<_Tp, _Up>;
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template <class _Tp, class _Up>
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static _LIBCPP_HIDE_FROM_ABI constexpr _Up* __apply(_Up* __ptr) {
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return std::__assume_aligned<__alignment<_Tp, _Up>, _Up>(__ptr);
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}
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};
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template <>
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inline constexpr bool is_simd_flag_type_v<vector_aligned_tag> = true;
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template <size_t _Np>
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struct overaligned_tag {
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template <class _Tp, class _Up = typename _Tp::value_type>
@@ -51,6 +57,9 @@ struct overaligned_tag {
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}
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};
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template <size_t _Np>
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inline constexpr bool is_simd_flag_type_v<overaligned_tag<_Np>> = true;
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inline constexpr element_aligned_tag element_aligned{};
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inline constexpr vector_aligned_tag vector_aligned{};

‎libcxx/include/experimental/__simd/declaration.h

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@@ -10,13 +10,63 @@
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#ifndef _LIBCPP_EXPERIMENTAL___SIMD_DECLARATION_H
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#define _LIBCPP_EXPERIMENTAL___SIMD_DECLARATION_H
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#include <cstddef>
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#include <experimental/__config>
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#include <experimental/__simd/abi_tag.h>
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#if _LIBCPP_STD_VER >= 17 && defined(_LIBCPP_ENABLE_EXPERIMENTAL)
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_LIBCPP_BEGIN_NAMESPACE_EXPERIMENTAL
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inline namespace parallelism_v2 {
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namespace simd_abi {
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template <int>
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struct __vec_ext;
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struct __scalar;
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using scalar = __scalar;
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// TODO: make this platform dependent
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template <int _Np>
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using fixed_size = __vec_ext<_Np>;
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template <class _Tp>
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inline constexpr int max_fixed_size = 32;
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// TODO: make this platform dependent
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template <class _Tp>
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using compatible = __vec_ext<16 / sizeof(_Tp)>;
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// TODO: make this platform dependent
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template <class _Tp>
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using native = __vec_ext<_LIBCPP_NATIVE_SIMD_WIDTH_IN_BYTES / sizeof(_Tp)>;
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// TODO: make this platform dependent
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template <class _Tp, size_t _Np, class... _Abis>
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struct deduce {
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using type = fixed_size<_Np>;
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};
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// TODO: make this platform dependent
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template <class _Tp, size_t _Np, class... _Abis>
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using deduce_t = typename deduce<_Tp, _Np, _Abis...>::type;
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} // namespace simd_abi
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template <class _Tp, class _Abi>
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struct __simd_storage;
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template <class _Tp, class _Abi>
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struct __mask_storage;
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template <class _Tp, class _Abi>
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struct __simd_operations;
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template <class _Tp, class _Abi>
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struct __mask_operations;
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struct element_aligned_tag;
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struct vector_aligned_tag;
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template <size_t>
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struct overaligned_tag;
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template <class _Tp, class _Abi = simd_abi::compatible<_Tp>>
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class simd;

‎libcxx/include/experimental/__simd/internal_declaration.h

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This file was deleted.

‎libcxx/include/experimental/__simd/scalar.h

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@@ -12,7 +12,7 @@
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#include <cstddef>
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#include <experimental/__config>
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#include <experimental/__simd/internal_declaration.h>
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#include <experimental/__simd/declaration.h>
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#include <experimental/__simd/traits.h>
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#if _LIBCPP_STD_VER >= 17 && defined(_LIBCPP_ENABLE_EXPERIMENTAL)

‎libcxx/include/experimental/__simd/simd.h

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@@ -15,9 +15,7 @@
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#include <__utility/forward.h>
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#include <cstddef>
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#include <experimental/__config>
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#include <experimental/__simd/abi_tag.h>
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#include <experimental/__simd/declaration.h>
20-
#include <experimental/__simd/internal_declaration.h>
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#include <experimental/__simd/reference.h>
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#include <experimental/__simd/traits.h>
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#include <experimental/__simd/utility.h>

‎libcxx/include/experimental/__simd/simd_mask.h

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@@ -13,9 +13,7 @@
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#include <__type_traits/is_same.h>
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#include <cstddef>
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#include <experimental/__config>
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#include <experimental/__simd/abi_tag.h>
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#include <experimental/__simd/declaration.h>
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#include <experimental/__simd/internal_declaration.h>
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#include <experimental/__simd/reference.h>
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#include <experimental/__simd/traits.h>
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‎libcxx/include/experimental/__simd/traits.h

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@@ -10,14 +10,12 @@
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#ifndef _LIBCPP_EXPERIMENTAL___SIMD_TRAITS_H
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#define _LIBCPP_EXPERIMENTAL___SIMD_TRAITS_H
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13+
#include <__bit/bit_ceil.h>
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#include <__type_traits/integral_constant.h>
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#include <__type_traits/is_same.h>
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#include <cstddef>
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#include <experimental/__config>
17-
#include <experimental/__simd/abi_tag.h>
18-
#include <experimental/__simd/aligned_tag.h>
1918
#include <experimental/__simd/declaration.h>
20-
#include <experimental/__simd/internal_declaration.h>
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#include <experimental/__simd/utility.h>
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2321
#if _LIBCPP_STD_VER >= 17 && defined(_LIBCPP_ENABLE_EXPERIMENTAL)
@@ -47,15 +45,6 @@ struct is_simd_mask : bool_constant<is_simd_mask_v<_Tp>> {};
4745
template <class _Tp>
4846
inline constexpr bool is_simd_flag_type_v = false;
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50-
template <>
51-
inline constexpr bool is_simd_flag_type_v<element_aligned_tag> = true;
52-
53-
template <>
54-
inline constexpr bool is_simd_flag_type_v<vector_aligned_tag> = true;
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56-
template <size_t _Np>
57-
inline constexpr bool is_simd_flag_type_v<overaligned_tag<_Np>> = true;
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template <class _Tp>
6049
struct is_simd_flag_type : bool_constant<is_simd_flag_type_v<_Tp>> {};
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@@ -71,7 +60,7 @@ inline constexpr size_t simd_size_v = simd_size<_Tp, _Abi>::value;
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template <class _Tp,
7261
class _Up = typename _Tp::value_type,
7362
bool = (is_simd_v<_Tp> && __is_vectorizable_v<_Up>) || (is_simd_mask_v<_Tp> && is_same_v<_Up, bool>)>
74-
struct memory_alignment : integral_constant<size_t, vector_aligned_tag::__alignment<_Tp, _Up>> {};
63+
struct memory_alignment : integral_constant<size_t, std::__bit_ceil(sizeof(_Up) * _Tp::size())> {};
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7665
template <class _Tp, class _Up>
7766
struct memory_alignment<_Tp, _Up, false> {};

‎libcxx/include/experimental/__simd/vec_ext.h

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@@ -15,7 +15,7 @@
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#include <__utility/integer_sequence.h>
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#include <cstddef>
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#include <experimental/__config>
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#include <experimental/__simd/internal_declaration.h>
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#include <experimental/__simd/declaration.h>
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#include <experimental/__simd/traits.h>
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#include <experimental/__simd/utility.h>
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