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construct/include/ircd/simd/unaligned.h

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// The Construct
//
// Copyright (C) The Construct Developers, Authors & Contributors
// Copyright (C) 2016-2020 Jason Volk <jason@zemos.net>
//
// Permission to use, copy, modify, and/or distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice is present in all copies. The
// full license for this software is available in the LICENSE file.
#pragma once
#define HAVE_IRCD_SIMD_TYPE_UNALIGNED_H
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wpsabi"
#pragma GCC diagnostic ignored "-Wpacked"
namespace ircd::simd
{
template<class T> struct unaligned;
}
/// Unaligned wrapper template class.
/// T = inner aligned type
template<class T>
struct
__attribute__((packed))
__attribute__((aligned(1)))
__attribute__((visibility("internal")))
ircd::simd::unaligned
{
using value_type = T;
T val;
operator T() const
{
return val;
}
template<class U>
unaligned(U&& val)
:val(std::forward<U>(val))
{}
};
/// Unaligned type wrapper macro. We use this macro to define several common
/// instantiations of unaligned<T>.
///
#define IRCD_SIMD_TYPEDEF_UNALIGNED(TYPE, NAME) \
namespace ircd \
{ \
namespace simd \
{ \
using NAME = unaligned<TYPE>; \
} \
\
using simd::NAME; \
}
//
// unsigned
//
IRCD_SIMD_TYPEDEF_UNALIGNED(m512i, u512x1_u);
IRCD_SIMD_TYPEDEF_UNALIGNED(m256i, u256x1_u);
IRCD_SIMD_TYPEDEF_UNALIGNED(m128i, u128x1_u);
//
// signed
//
IRCD_SIMD_TYPEDEF_UNALIGNED(m512i, i512x1_u);
IRCD_SIMD_TYPEDEF_UNALIGNED(m256i, i256x1_u);
IRCD_SIMD_TYPEDEF_UNALIGNED(m128i, i128x1_u);
//
// single precision
//
IRCD_SIMD_TYPEDEF_UNALIGNED(m512f, f512x1_u);
IRCD_SIMD_TYPEDEF_UNALIGNED(m256f, f256x1_u);
IRCD_SIMD_TYPEDEF_UNALIGNED(m128f, f128x1_u);
//
// double precision
//
IRCD_SIMD_TYPEDEF_UNALIGNED(m512d, d512x1_u);
IRCD_SIMD_TYPEDEF_UNALIGNED(m256d, d256x1_u);
IRCD_SIMD_TYPEDEF_UNALIGNED(m128d, d128x1_u);
#pragma GCC diagnostic pop