mirror of
https://github.com/JayDDee/cpuminer-opt.git
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110 lines
3.2 KiB
C
110 lines
3.2 KiB
C
#if !defined(SIMD_64_H__)
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#define SIMD_64_H__ 1
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#if defined(__MMX__) && defined(__SSE__)
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////////////////////////////////////////////////////////////////
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//
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// 64 bit MMX vectors.
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//
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// This code is not used anywhere annd likely never will. It's intent was
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// to support 2 way parallel hashing using SSE2 for 64 bit, and MMX for 32
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// bit hash functions, but was never implemented.
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// Pseudo constants
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/*
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#define m64_zero _mm_setzero_si64()
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#define m64_one_64 _mm_set_pi32( 0UL, 1UL )
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#define m64_one_32 _mm_set1_pi32( 1UL )
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#define m64_one_16 _mm_set1_pi16( 1U )
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#define m64_one_8 _mm_set1_pi8( 1U );
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#define m64_neg1 _mm_set1_pi32( 0xFFFFFFFFUL )
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*/
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#define m64_zero ( (__m64)0ULL )
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#define m64_one_64 ( (__m64)1ULL )
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#define m64_one_32 ( (__m64)0x0000000100000001ULL )
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#define m64_one_16 ( (__m64)0x0001000100010001ULL )
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#define m64_one_8 ( (__m64)0x0101010101010101ULL )
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#define m64_neg1 ( (__m64)0xFFFFFFFFFFFFFFFFULL )
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#define casti_m64(p,i) (((__m64*)(p))[(i)])
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// Bitwise not: ~(a)
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//#define mm64_not( a ) _mm_xor_si64( (__m64)a, m64_neg1 )
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#define mm64_not( a ) ( (__m64)( ~( (uint64_t)(a) ) )
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// Unary negate elements
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#define mm64_negate_32( v ) _mm_sub_pi32( m64_zero, v )
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#define mm64_negate_16( v ) _mm_sub_pi16( m64_zero, v )
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#define mm64_negate_8( v ) _mm_sub_pi8( m64_zero, v )
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// Rotate bits in packed elements of 64 bit vector
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#define mm64_rol_64( a, n ) \
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_mm_or_si64( _mm_slli_si64( a, n ), \
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_mm_srli_si64( a, 64-(n) ) )
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#define mm64_ror_64( a, n ) \
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_mm_or_si64( _mm_srli_si64( a, n ), \
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_mm_slli_si64( a, 64-(n) ) )
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#define mm64_rol_32( a, n ) \
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_mm_or_si64( _mm_slli_pi32( a, n ), \
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_mm_srli_pi32( a, 32-(n) ) )
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#define mm64_ror_32( a, n ) \
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_mm_or_si64( _mm_srli_pi32( a, n ), \
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_mm_slli_pi32( a, 32-(n) ) )
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#define mm64_rol_16( a, n ) \
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_mm_or_si64( _mm_slli_pi16( a, n ), \
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_mm_srli_pi16( a, 16-(n) ) )
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#define mm64_ror_16( a, n ) \
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_mm_or_si64( _mm_srli_pi16( a, n ), \
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_mm_slli_pi16( a, 16-(n) ) )
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// Rotate packed elements accross lanes. Useful for byte swap and byte
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// rotation.
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// Swap hi & lo 32 bits.
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#define mm64_swap_32( a ) _mm_shuffle_pi16( a, 0x4e )
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#define mm64_shulfr_16( a ) _mm_shuffle_pi16( a, 0x39 )
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#define mm64_shufll_16( a ) _mm_shuffle_pi16( a, 0x93 )
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// Swap hi & lo 16 bits of each 32 bit element
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#define mm64_swap32_16( a ) _mm_shuffle_pi16( a, 0xb1 )
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#if defined(__SSSE3__)
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// Endian byte swap packed elements
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#define mm64_bswap_32( v ) \
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_mm_shuffle_pi8( v, (__m64)0x0405060700010203 )
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#define mm64_bswap_16( v ) \
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_mm_shuffle_pi8( v, (__m64)0x0607040502030001 );
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// Rotate right by c bytes
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static inline __m64 mm64_vror_x8( __m64 v, const int c )
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{ return _mm_alignr_pi8( v, v, c ); }
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#else
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#define mm64_bswap_32( v ) \
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_mm_set_pi32( __builtin_bswap32( ((uint32_t*)&v)[1] ), \
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__builtin_bswap32( ((uint32_t*)&v)[0] ) )
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#define mm64_bswap_16( v ) \
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_mm_set_pi16( __builtin_bswap16( ((uint16_t*)&v)[3] ), \
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__builtin_bswap16( ((uint16_t*)&v)[2] ), \
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__builtin_bswap16( ((uint16_t*)&v)[1] ), \
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__builtin_bswap16( ((uint16_t*)&v)[0] ) )
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#endif
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#endif // MMX
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#endif // SIMD_64_H__
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