1 files changed, 51 insertions, 1 deletions
diff --git a/contrib/llvm-project/libcxx/include/experimental/__simd/declaration.h b/contrib/llvm-project/libcxx/include/experimental/__simd/declaration.h
index 065faeaec384..7b45d035c271 100644
--- a/contrib/llvm-project/libcxx/include/experimental/__simd/declaration.h
+++ b/contrib/llvm-project/libcxx/include/experimental/__simd/declaration.h
@@ -10,13 +10,63 @@
 #ifndef _LIBCPP_EXPERIMENTAL___SIMD_DECLARATION_H
 #define _LIBCPP_EXPERIMENTAL___SIMD_DECLARATION_H
 
+#include <cstddef>
 #include <experimental/__config>
-#include <experimental/__simd/abi_tag.h>
 
 #if _LIBCPP_STD_VER >= 17 && defined(_LIBCPP_ENABLE_EXPERIMENTAL)
 
 _LIBCPP_BEGIN_NAMESPACE_EXPERIMENTAL
 inline namespace parallelism_v2 {
+namespace simd_abi {
+template <int>
+struct __vec_ext;
+struct __scalar;
+
+using scalar = __scalar;
+
+// TODO: make this platform dependent
+template <int _Np>
+using fixed_size = __vec_ext<_Np>;
+
+template <class _Tp>
+inline constexpr int max_fixed_size = 32;
+
+// TODO: make this platform dependent
+template <class _Tp>
+using compatible = __vec_ext<16 / sizeof(_Tp)>;
+
+// TODO: make this platform dependent
+template <class _Tp>
+using native = __vec_ext<_LIBCPP_NATIVE_SIMD_WIDTH_IN_BYTES / sizeof(_Tp)>;
+
+// TODO: make this platform dependent
+template <class _Tp, size_t _Np, class... _Abis>
+struct deduce {
+  using type = fixed_size<_Np>;
+};
+
+// TODO: make this platform dependent
+template <class _Tp, size_t _Np, class... _Abis>
+using deduce_t = typename deduce<_Tp, _Np, _Abis...>::type;
+
+} // namespace simd_abi
+
+template <class _Tp, class _Abi>
+struct __simd_storage;
+
+template <class _Tp, class _Abi>
+struct __mask_storage;
+
+template <class _Tp, class _Abi>
+struct __simd_operations;
+
+template <class _Tp, class _Abi>
+struct __mask_operations;
+
+struct element_aligned_tag;
+struct vector_aligned_tag;
+template <size_t>
+struct overaligned_tag;
 
 template <class _Tp, class _Abi = simd_abi::compatible<_Tp>>
 class simd;