mirror of
https://github.com/matrix-construct/construct
synced 2024-09-08 17:55:47 +02:00
227 lines
3.4 KiB
C++
227 lines
3.4 KiB
C++
// The Construct
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//
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// Copyright (C) The Construct Developers, Authors & Contributors
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// Copyright (C) 2016-2020 Jason Volk <jason@zemos.net>
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//
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// Permission to use, copy, modify, and/or distribute this software for any
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// purpose with or without fee is hereby granted, provided that the above
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// copyright notice and this permission notice is present in all copies. The
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// full license for this software is available in the LICENSE file.
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#pragma once
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#define HAVE_IRCD_SIMD_SUM_ADD_H
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namespace ircd::simd
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{
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template<class T> T sum_add(T) noexcept = delete;
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template<> u8x16 sum_add(u8x16) noexcept;
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template<> u8x32 sum_add(u8x32) noexcept;
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template<> u8x64 sum_add(u8x64) noexcept;
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template<> u16x8 sum_add(u16x8) noexcept;
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template<> u16x16 sum_add(u16x16) noexcept;
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template<> u16x32 sum_add(u16x32) noexcept;
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template<> u32x4 sum_add(u32x4) noexcept;
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template<> u32x8 sum_add(u32x8) noexcept;
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template<> u32x16 sum_add(u32x16) noexcept;
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template<> u64x2 sum_add(u64x2) noexcept;
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template<> u64x4 sum_add(u64x4) noexcept;
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template<> u64x8 sum_add(u64x8) noexcept;
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}
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template<>
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inline ircd::u64x8
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ircd::simd::sum_add(u64x8 a)
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noexcept
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{
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u64x4 b, c;
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for(size_t i(0); i < 4; ++i)
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b[i] = a[i], c[i] = a[i + 4];
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b += c;
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b = sum_add(b);
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a[0] = b[0];
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return a;
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}
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template<>
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inline ircd::u64x4
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ircd::simd::sum_add(u64x4 a)
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noexcept
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{
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u64x2 b, c;
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for(size_t i(0); i < 2; ++i)
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b[i] = a[i], c[i] = a[i + 2];
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b += c;
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b = sum_add(b);
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a[0] = b[0];
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return a;
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}
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template<>
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inline ircd::u64x2
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ircd::simd::sum_add(u64x2 a)
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noexcept
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{
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const u64x2 b
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{
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a[1], a[0]
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};
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a += b;
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return a;
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}
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template<>
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inline ircd::u32x16
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ircd::simd::sum_add(u32x16 a)
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noexcept
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{
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u32x8 b, c;
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for(size_t i(0); i < 8; ++i)
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b[i] = a[i], c[i] = a[i + 8];
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b += c;
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b = sum_add(b);
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a[0] = b[0];
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return a;
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}
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template<>
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inline ircd::u32x8
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ircd::simd::sum_add(u32x8 a)
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noexcept
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{
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u32x4 b, c;
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for(size_t i(0); i < 4; ++i)
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b[i] = a[i], c[i] = a[i + 4];
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b += c;
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b = sum_add(b);
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a[0] = b[0];
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return a;
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}
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template<>
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inline ircd::u32x4
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ircd::simd::sum_add(u32x4 a)
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noexcept
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{
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u32x4 b
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{
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a[2], a[3], 0, 0,
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};
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a = a + b;
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b[0] = a[1];
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a = a + b;
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return a;
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}
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template<>
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inline ircd::u16x32
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ircd::simd::sum_add(u16x32 a)
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noexcept
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{
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u16x16 b, c;
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for(size_t i(0); i < 16; ++i)
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b[i] = a[i], c[i] = a[i + 16];
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b += c;
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b = sum_add(b);
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a[0] = b[0];
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return a;
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}
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template<>
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inline ircd::u16x16
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ircd::simd::sum_add(u16x16 a)
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noexcept
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{
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u16x8 b, c;
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for(size_t i(0); i < 8; ++i)
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b[i] = a[i], c[i] = a[i + 8];
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b += c;
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b = sum_add(b);
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a[0] = b[0];
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return a;
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}
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template<>
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inline ircd::u16x8
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ircd::simd::sum_add(u16x8 a)
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noexcept
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{
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u16x8 b
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{
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a[4], a[5], a[6], a[7]
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};
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a = a + b;
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b[0] = a[2];
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b[1] = a[3];
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a = a + b;
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b[0] = a[1];
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a = a + b;
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return a;
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}
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template<>
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inline ircd::u8x64
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ircd::simd::sum_add(u8x64 a)
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noexcept
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{
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u8x32 b, c;
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for(size_t i(0); i < 32; ++i)
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b[i] = a[i], c[i] = a[i + 32];
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b += c;
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b = sum_add(b);
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a[0] = b[0];
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return a;
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}
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template<>
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inline ircd::u8x32
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ircd::simd::sum_add(u8x32 a)
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noexcept
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{
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u8x16 b, c;
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for(size_t i(0); i < 16; ++i)
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b[i] = a[i], c[i] = a[i + 16];
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b += c;
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b = sum_add(b);
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a[0] = b[0];
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return a;
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}
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template<>
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inline ircd::u8x16
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ircd::simd::sum_add(u8x16 a)
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noexcept
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{
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u8x16 b
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{
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a[0x8], a[0x9], a[0xa], a[0xb], a[0xc], a[0xd], a[0xe], a[0xf],
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};
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a = a + b;
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b = u8x16
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{
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a[0x4], a[0x5], a[0x6], a[0x7],
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};
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a = a + b;
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b[0x0] = a[0x2];
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b[0x1] = a[0x3];
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a = a + b;
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b[0x0] = a[0x1];
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a = a + b;
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return a;
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}
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