2016-09-06 17:03:25 -03:00
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/*
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BLAKE2 reference source code package - optimized C implementations
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2019-05-23 01:32:44 -03:00
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Written in 2012 by Samuel Neves <sneves@dei.uc.pt>
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To the extent possible under law, the author(s) have dedicated all copyright
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and related and neighboring rights to this software to the public domain
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worldwide. This software is distributed without any warranty.
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You should have received a copy of the CC0 Public Domain Dedication along with
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this software. If not, see <http://creativecommons.org/publicdomain/zero/1.0/>.
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2016-09-06 17:03:25 -03:00
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*/
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#pragma once
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#ifndef __BLAKE2S_ROUND_H__
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#define __BLAKE2S_ROUND_H__
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2019-05-23 01:32:44 -03:00
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#define LOAD(p) _mm_load_si128( (__m128i *)(p) )
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#define STORE(p,r) _mm_store_si128((__m128i *)(p), r)
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#define LOADU(p) _mm_loadu_si128( (__m128i *)(p) )
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2016-09-06 17:03:25 -03:00
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#define STOREU(p,r) _mm_storeu_si128((__m128i *)(p), r)
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#define TOF(reg) _mm_castsi128_ps((reg))
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#define TOI(reg) _mm_castps_si128((reg))
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#define LIKELY(x) __builtin_expect((x),1)
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/* Microarchitecture-specific macros */
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#ifndef HAVE_XOP
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#ifdef HAVE_SSSE3
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#define _mm_roti_epi32(r, c) ( \
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(8==-(c)) ? _mm_shuffle_epi8(r,r8) \
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: (16==-(c)) ? _mm_shuffle_epi8(r,r16) \
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: _mm_xor_si128(_mm_srli_epi32( (r), -(c) ),_mm_slli_epi32( (r), 32-(-(c)) )) )
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#else
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#define _mm_roti_epi32(r, c) _mm_xor_si128(_mm_srli_epi32( (r), -(c) ),_mm_slli_epi32( (r), 32-(-(c)) ))
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#endif
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#else
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/* ... */
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#endif
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#define G1(row1,row2,row3,row4,buf) \
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row1 = _mm_add_epi32( _mm_add_epi32( row1, buf), row2 ); \
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row4 = _mm_xor_si128( row4, row1 ); \
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row4 = _mm_roti_epi32(row4, -16); \
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row3 = _mm_add_epi32( row3, row4 ); \
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row2 = _mm_xor_si128( row2, row3 ); \
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row2 = _mm_roti_epi32(row2, -12);
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#define G2(row1,row2,row3,row4,buf) \
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row1 = _mm_add_epi32( _mm_add_epi32( row1, buf), row2 ); \
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row4 = _mm_xor_si128( row4, row1 ); \
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row4 = _mm_roti_epi32(row4, -8); \
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row3 = _mm_add_epi32( row3, row4 ); \
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row2 = _mm_xor_si128( row2, row3 ); \
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row2 = _mm_roti_epi32(row2, -7);
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#define DIAGONALIZE(row1,row2,row3,row4) \
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row4 = _mm_shuffle_epi32( row4, _MM_SHUFFLE(2,1,0,3) ); \
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row3 = _mm_shuffle_epi32( row3, _MM_SHUFFLE(1,0,3,2) ); \
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row2 = _mm_shuffle_epi32( row2, _MM_SHUFFLE(0,3,2,1) );
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#define UNDIAGONALIZE(row1,row2,row3,row4) \
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row4 = _mm_shuffle_epi32( row4, _MM_SHUFFLE(0,3,2,1) ); \
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row3 = _mm_shuffle_epi32( row3, _MM_SHUFFLE(1,0,3,2) ); \
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row2 = _mm_shuffle_epi32( row2, _MM_SHUFFLE(2,1,0,3) );
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#if defined(HAVE_XOP)
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#include "blake2s-load-xop.h"
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#elif defined(HAVE_SSE4_1)
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#include "blake2s-load-sse41.h"
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#else
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#include "blake2s-load-sse2.h"
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#endif
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#define ROUND(r) \
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LOAD_MSG_ ##r ##_1(buf1); \
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G1(row1,row2,row3,row4,buf1); \
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LOAD_MSG_ ##r ##_2(buf2); \
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G2(row1,row2,row3,row4,buf2); \
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DIAGONALIZE(row1,row2,row3,row4); \
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LOAD_MSG_ ##r ##_3(buf3); \
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G1(row1,row2,row3,row4,buf3); \
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LOAD_MSG_ ##r ##_4(buf4); \
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G2(row1,row2,row3,row4,buf4); \
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UNDIAGONALIZE(row1,row2,row3,row4); \
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#endif
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