mirror of
https://github.com/matrix-construct/construct
synced 2024-12-11 08:02:59 +01:00
151 lines
2.7 KiB
C++
151 lines
2.7 KiB
C++
// 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_TRAITS_H
|
|
|
|
namespace ircd::simd
|
|
{
|
|
template<class T>
|
|
using lane_type = typename std::remove_reference<decltype(T{}[0])>::type;
|
|
|
|
template<class T>
|
|
constexpr size_t sizeof_lane();
|
|
|
|
template<class T>
|
|
constexpr size_t lanes();
|
|
|
|
// lane number convenience constants
|
|
extern const u8x64 u8x64_lane_id;
|
|
extern const u8x32 u8x32_lane_id;
|
|
extern const u16x32 u16x32_lane_id;
|
|
extern const u8x16 u8x16_lane_id;
|
|
extern const u16x16 u16x16_lane_id;
|
|
extern const u32x16 u32x16_lane_id;
|
|
extern const u16x8 u16x8_lane_id;
|
|
extern const u32x8 u32x8_lane_id;
|
|
extern const u64x8 u64x8_lane_id;
|
|
extern const u32x4 u32x4_lane_id;
|
|
extern const u64x4 u64x4_lane_id;
|
|
extern const u64x2 u64x2_lane_id;
|
|
extern const u128x1 u128x1_lane_id;
|
|
extern const u256x1 u256x1_lane_id;
|
|
extern const u512x1 u512x1_lane_id;
|
|
|
|
constexpr auto alignment
|
|
{
|
|
support::avx512f? 64:
|
|
support::avx? 32:
|
|
support::sse? 16:
|
|
8
|
|
};
|
|
}
|
|
|
|
/// Get number of lanes for vector type (the number after the x in the
|
|
/// type name).
|
|
template<class T>
|
|
[[gnu::always_inline]]
|
|
inline constexpr size_t
|
|
ircd::simd::lanes()
|
|
{
|
|
constexpr size_t ret
|
|
{
|
|
sizeof(T) / sizeof_lane<T>()
|
|
};
|
|
|
|
static_assert
|
|
(
|
|
sizeof(T) <= 64 && ret <= 64 && ret > 0
|
|
);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/// Get the size of each lane; i.e the size of one integral element.
|
|
template<class T>
|
|
[[gnu::always_inline]]
|
|
inline constexpr size_t
|
|
ircd::simd::sizeof_lane()
|
|
{
|
|
constexpr size_t ret
|
|
{
|
|
sizeof(T{}[0])
|
|
};
|
|
|
|
static_assert
|
|
(
|
|
ret >= 1 && ret <= 64
|
|
);
|
|
|
|
return ret;
|
|
}
|
|
|
|
template<>
|
|
constexpr size_t
|
|
ircd::simd::sizeof_lane<ircd::u128x1>()
|
|
{
|
|
return 16;
|
|
};
|
|
|
|
template<>
|
|
constexpr size_t
|
|
ircd::simd::sizeof_lane<ircd::f128x1>()
|
|
{
|
|
return 16;
|
|
};
|
|
|
|
template<>
|
|
constexpr size_t
|
|
ircd::simd::sizeof_lane<ircd::d128x1>()
|
|
{
|
|
return 16;
|
|
};
|
|
|
|
template<>
|
|
constexpr size_t
|
|
ircd::simd::sizeof_lane<ircd::u256x1>()
|
|
{
|
|
return 32;
|
|
};
|
|
|
|
template<>
|
|
constexpr size_t
|
|
ircd::simd::sizeof_lane<ircd::f256x1>()
|
|
{
|
|
return 32;
|
|
};
|
|
|
|
template<>
|
|
constexpr size_t
|
|
ircd::simd::sizeof_lane<ircd::d256x1>()
|
|
{
|
|
return 32;
|
|
};
|
|
|
|
template<>
|
|
constexpr size_t
|
|
ircd::simd::sizeof_lane<ircd::u512x1>()
|
|
{
|
|
return 64;
|
|
};
|
|
|
|
template<>
|
|
constexpr size_t
|
|
ircd::simd::sizeof_lane<ircd::f512x1>()
|
|
{
|
|
return 64;
|
|
};
|
|
|
|
template<>
|
|
constexpr size_t
|
|
ircd::simd::sizeof_lane<ircd::d512x1>()
|
|
{
|
|
return 64;
|
|
};
|