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v3.15.1

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Jay D Dee
2020-11-09 13:19:05 -05:00
parent c85fb3842b
commit 4fa8fcea8b
18 changed files with 100 additions and 115 deletions
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16
simd-utils/simd-512.h
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@@ -56,15 +56,15 @@
// If an expensive constant is to be reused in the same function it should
// be declared as a local variable defined once and reused.
//
// Permutations cab be very exppensive if they use a vector control index,
// Permutations can be very expensive if they use a vector control index,
// even if the permutation itself is quite efficient.
// The index is essentially a constant with all the baggage that brings.
// The same rules apply, if an index is to be reused it should be defined
// as a local. This applies specifically to bswap operations.
//
// Additionally, permutations using smaller vectors can be more efficient
// if the permutation doesn't cross lane boundaries ,typically 128 bits,
// ans the smnaller vector can use an imm comtrol.
// if the permutation doesn't cross lane boundaries, typically 128 bits,
// and the smnaller vector can use an imm comtrol.
//
// If the permutation doesn't cross lane boundaries a shuffle instructions
// can be used with imm control instead of permute.
@@ -182,7 +182,10 @@ static inline __m512i m512_const4_64( const uint64_t i3, const uint64_t i2,
//
// Basic operations without SIMD equivalent
// ~x
#define mm512_not( x ) _mm512_xor_si512( x, m512_neg1 )
// -x
#define mm512_negate_64( x ) _mm512_sub_epi64( m512_zero, x )
#define mm512_negate_32( x ) _mm512_sub_epi32( m512_zero, x )
#define mm512_negate_16( x ) _mm512_sub_epi16( m512_zero, x )
@@ -443,20 +446,13 @@ static inline void memcpy_512( __m512i *dst, const __m512i *src, const int n )
//
// Rotate elements within 256 bit lanes of 512 bit vector.
// Rename these for consistency. Element size is always last.
// mm<vectorsize>_<op><lanesize>_<elementsize>
// Swap hi & lo 128 bits in each 256 bit lane
#define mm512_swap256_128( v ) _mm512_permutex_epi64( v, 0x4e )
// Rotate 256 bit lanes by one 64 bit element
#define mm512_ror256_64( v ) _mm512_permutex_epi64( v, 0x39 )
#define mm512_rol256_64( v ) _mm512_permutex_epi64( v, 0x93 )
// Rotate 256 bit lanes by one 32 bit element
#define mm512_ror256_32( v ) \