#include "blake3_impl.h"
#include <immintrin.h>
#define _mm_shuffle_ps2(a, b, c) \
(_mm_castps_si128( \
_mm_shuffle_ps(_mm_castsi128_ps(a), _mm_castsi128_ps(b), (c))))
INLINE __m128i loadu_128(const uint8_t src[16]) {
return _mm_loadu_si128((const __m128i *)src);
}
INLINE __m256i loadu_256(const uint8_t src[32]) {
return _mm256_loadu_si256((const __m256i *)src);
}
INLINE __m512i loadu_512(const uint8_t src[64]) {
return _mm512_loadu_si512((const __m512i *)src);
}
INLINE void storeu_128(__m128i src, uint8_t dest[16]) {
_mm_storeu_si128((__m128i *)dest, src);
}
INLINE void storeu_256(__m256i src, uint8_t dest[16]) {
_mm256_storeu_si256((__m256i *)dest, src);
}
INLINE __m128i add_128(__m128i a, __m128i b) { return _mm_add_epi32(a, b); }
INLINE __m256i add_256(__m256i a, __m256i b) { return _mm256_add_epi32(a, b); }
INLINE __m512i add_512(__m512i a, __m512i b) { return _mm512_add_epi32(a, b); }
INLINE __m128i xor_128(__m128i a, __m128i b) { return _mm_xor_si128(a, b); }
INLINE __m256i xor_256(__m256i a, __m256i b) { return _mm256_xor_si256(a, b); }
INLINE __m512i xor_512(__m512i a, __m512i b) { return _mm512_xor_si512(a, b); }
INLINE __m128i set1_128(uint32_t x) { return _mm_set1_epi32((int32_t)x); }
INLINE __m256i set1_256(uint32_t x) { return _mm256_set1_epi32((int32_t)x); }
INLINE __m512i set1_512(uint32_t x) { return _mm512_set1_epi32((int32_t)x); }
INLINE __m128i set4(uint32_t a, uint32_t b, uint32_t c, uint32_t d) {
return _mm_setr_epi32((int32_t)a, (int32_t)b, (int32_t)c, (int32_t)d);
}
INLINE __m128i rot16_128(__m128i x) { return _mm_ror_epi32(x, 16); }
INLINE __m256i rot16_256(__m256i x) { return _mm256_ror_epi32(x, 16); }
INLINE __m512i rot16_512(__m512i x) { return _mm512_ror_epi32(x, 16); }
INLINE __m128i rot12_128(__m128i x) { return _mm_ror_epi32(x, 12); }
INLINE __m256i rot12_256(__m256i x) { return _mm256_ror_epi32(x, 12); }
INLINE __m512i rot12_512(__m512i x) { return _mm512_ror_epi32(x, 12); }
INLINE __m128i rot8_128(__m128i x) { return _mm_ror_epi32(x, 8); }
INLINE __m256i rot8_256(__m256i x) { return _mm256_ror_epi32(x, 8); }
INLINE __m512i rot8_512(__m512i x) { return _mm512_ror_epi32(x, 8); }
INLINE __m128i rot7_128(__m128i x) { return _mm_ror_epi32(x, 7); }
INLINE __m256i rot7_256(__m256i x) { return _mm256_ror_epi32(x, 7); }
INLINE __m512i rot7_512(__m512i x) { return _mm512_ror_epi32(x, 7); }
/*
* ----------------------------------------------------------------------------
* compress_avx512
* ----------------------------------------------------------------------------
*/
INLINE void g1(__m128i *row0, __m128i *row1, __m128i *row2, __m128i *row3,
__m128i m) {
*row0 = add_128(add_128(*row0, m), *row1);
*row3 = xor_128(*row3, *row0);
*row3 = rot16_128(*row3);
*row2 = add_128(*row2, *row3);
*row1 = xor_128(*row1, *row2);
*row1 = rot12_128(*row1);
}
INLINE void g2(__m128i *row0, __m128i *row1, __m128i *row2, __m128i *row3,
__m128i m) {
*row0 = add_128(add_128(*row0, m), *row1);
*row3 = xor_128(*row3, *row0);
*row3 = rot8_128(*row3);
*row2 = add_128(*row2, *row3);
*row1 = xor_128(*row1, *row2);
*row1 = rot7_128(*row1);
}
// Note the optimization here of leaving row1 as the unrotated row, rather than
// row0. All the message loads below are adjusted to compensate for this. See
// discussion at https://github.com/sneves/blake2-avx2/pull/4
INLINE void diagonalize(__m128i *row0, __m128i *row2, __m128i *row3) {
*row0 = _mm_shuffle_epi32(*row0, _MM_SHUFFLE(2, 1, 0, 3));
*row3 = _mm_shuffle_epi32(*row3, _MM_SHUFFLE(1, 0, 3, 2));
*row2 = _mm_shuffle_epi32(*row2, _MM_SHUFFLE(0, 3, 2, 1));
}
INLINE void undiagonalize(__m128i *row0, __m128i *row2, __m128i *row3) {
*row0 = _mm_shuffle_epi32(*row0, _MM_SHUFFLE(0, 3, 2, 1));
*row3 = _mm_shuffle_epi32(*row3, _MM_SHUFFLE(1, 0, 3, 2));
*row2 = _mm_shuffle_epi32(*row2, _MM_SHUFFLE(2, 1, 0, 3));
}
INLINE void compress_pre(__m128i rows[4], const uint32_t cv[8],
const uint8_t block[BLAKE3_BLOCK_LEN],
uint8_t block_len, uint64_t counter, uint8_t flags) {
rows[0] = loadu_128((uint8_t *)&cv[0]);
rows[1] = loadu_128((uint8_t *)&cv[4]);
rows[2] = set4(IV[0], IV[1], IV[2], IV[3]);
rows[3] = set4(counter_low(counter), counter_high(counter),
(uint32_t)block_len, (uint32_t)flags);
__m128i m0 = loadu_128(&block[sizeof(__m128i) * 0]);
__m128i m1 = loadu_128(&block[sizeof(__m128i) * 1]);
__m128i m2 = loadu_128(&block[sizeof(__m128i) * 2]);
__m128i m3 = loadu_128(&block[sizeof(__m128i) * 3]);
__m128i t0, t1, t2, t3, tt;
// Round 1. The first round permutes the message words from the original
// input order, into the groups that get mixed in parallel.
t0 = _mm_shuffle_ps2(m0, m1, _MM_SHUFFLE(2, 0, 2, 0)); // 6 4 2 0
g1(&rows[0], &rows[1], &rows[2], &rows[3], t0);
t1 = _mm_shuffle_ps2(m0, m1, _MM_SHUFFLE(3, 1, 3, 1)); // 7 5 3 1
g2(&rows[0], &rows[1], &rows[2], &rows[3], t1);
diagonalize(&rows[0], &rows[2], &rows[3]);
t2 = _mm_shuffle_ps2(m2, m3, _MM_SHUFFLE(2, 0, 2, 0)); // 14 12 10 8
t2 = _mm_shuffle_epi32(t2, _MM_SHUFFLE(2, 1, 0, 3)); // 12 10 8 14
g1(&rows[0], &rows[1], &rows[2], &rows[3], t2);
t3 = _mm_shuffle_ps2(m2, m3, _MM_SHUFFLE(3, 1, 3, 1)); // 15 13 11 9
t3 = _mm_shuffle_epi32(t3, _MM_SHUFFLE(2, 1, 0, 3)); // 13 11 9 15
g2(&rows[0], &rows[1], &rows[2], &rows[3], t3);
undiagonalize(&rows[0], &rows[2], &rows[3]);
m0 = t0;
m1 = t1;
m2 = t2;
m3 = t3;
// Round 2. This round and all following rounds apply a fixed permutation
// to the message words from the round before.
t0 = _mm_shuffle_ps2(m0, m1, _MM_SHUFFLE(3, 1, 1, 2));
t0 = _mm_shuffle_epi32(t0, _MM_SHUFFLE(0, 3, 2, 1));
g1(&rows[0], &rows[1], &rows[2], &rows[3], t0);
t1 = _mm_shuffle_ps2(m2, m3, _MM_SHUFFLE(3, 3, 2, 2));
tt = _mm_shuffle_epi32(m0, _MM_SHUFFLE(0, 0, 3, 3));
t1 = _mm_blend_epi16(tt, t1, 0xCC);
g2(&rows[0], &rows[1], &rows[2], &rows[3], t1);
diagonalize(&rows[0], &rows[2], &rows[3]);
t2 = _mm_unpacklo_epi64(m3, m1);
tt = _mm_blend_epi16(t2, m2, 0xC0);
t2 = _mm_shuffle_epi32(tt, _MM_SHUFFLE(1, 3, 2, 0));
g1(&rows[0], &rows[1], &rows[2], &rows[3], t2);
t3 = _mm_unpackhi_epi32(m1, m3);
tt = _mm_unpacklo_epi32(m2, t3);
t3 = _mm_shuffle_epi32(tt, _MM_SHUFFLE(0, 1, 3, 2));
g2(&rows[0], &rows[1], &rows[2], &rows[3], t3);
undiagonalize(&rows[0], &rows[2], &rows[3]);
m0 = t0;
m1 = t1;
m2 = t2;
m3 = t3;
// Round 3
t0 = _mm_shuffle_ps2(m0, m1, _MM_SHUFFLE(3, 1, 1, 2));
t0 = _mm_shuffle_epi32(t0, _MM_SHUFFLE(0, 3, 2, 1));
g1(&rows[0], &rows[1], &rows[2], &rows[3], t0);
t1 = _mm_shuffle_ps2(m2, m3, _MM_SHUFFLE(3, 3, 2, 2));
tt = _mm_shuffle_epi32(m0, _MM_SHUFFLE(0, 0, 3, 3));
t1 = _mm_blend_epi16(tt, t1, 0xCC);
g2(&rows[0], &rows[1], &rows[2], &rows[3], t1);
diagonalize(&rows[0], &rows[2], &rows[3]);
t2 = _mm_unpacklo_epi64(m3, m1);
tt = _mm_blend_epi16(t2, m2, 0xC0);
t2 = _mm_shuffle_epi32(tt, _MM_SHUFFLE(1, 3, 2, 0));
g1(&rows[0], &rows[1], &rows[2], &rows[3], t2);
t3 = _mm_unpackhi_epi32(m1, m3);
tt = _mm_unpacklo_epi32(m2, t3);
t3 = _mm_shuffle_epi32(tt, _MM_SHUFFLE(0, 1, 3, 2));
g2(&rows[0], &rows[1], &rows[2], &rows[3], t3);
undiagonalize(&rows[0], &rows[2], &rows[3]);
m0 = t0;
m1 = t1;
m2 = t2;
m3 = t3;
// Round 4
t0 = _mm_shuffle_ps2(m0, m1, _MM_SHUFFLE(3, 1, 1, 2));
t0 = _mm_shuffle_epi32(t0, _MM_SHUFFLE(0, 3, 2, 1));
g1(&rows[0], &rows[1], &rows[2], &rows[3], t0);
t1 = _mm_shuffle_ps2(m2, m3, _MM_SHUFFLE(3, 3, 2, 2));
tt = _mm_shuffle_epi32(m0, _MM_SHUFFLE(0, 0, 3, 3));
t1 = _mm_blend_epi16(tt, t1, 0xCC);
g2(&rows[0], &rows[1], &rows[2], &rows[3], t1);
diagonalize(&rows[0], &rows[2], &rows[3]);
t2 = _mm_unpacklo_epi64(m3, m1);
tt = _mm_blend_epi16(t2, m2, 0xC0);
t2 = _mm_shuffle_epi32(tt, _MM_SHUFFLE(1, 3, 2, 0));
g1(&rows[0], &rows[1], &rows[2], &rows[3], t2);
t3 = _mm_unpackhi_epi32(m1, m3);
tt = _mm_unpacklo_epi32(m2, t3);
t3 = _mm_shuffle_epi32(tt, _MM_SHUFFLE(0, 1, 3, 2));
g2(&rows[0], &rows[1], &rows[2], &rows[3], t3);
undiagonalize(&rows[0], &rows[2], &rows[3]);
m0 = t0;
m1 = t1;
m2 = t2;
m3 = t3;
// Round 5
t0 = _mm_shuffle_ps2(m0, m1, _MM_SHUFFLE(3, 1, 1, 2));
t0 = _mm_shuffle_epi32(t0, _MM_SHUFFLE(0, 3, 2, 1));
g1(&rows[0], &rows[1], &rows[2], &rows[3], t0);
t1 = _mm_shuffle_ps2(m2, m3, _MM_SHUFFLE(3, 3, 2, 2));
tt = _mm_shuffle_epi32(m0, _MM_SHUFFLE(0, 0, 3, 3));
t1 = _mm_blend_epi16(tt, t1, 0xCC);
g2(&rows[0], &rows[1], &rows[2], &rows[3], t1);
diagonalize(&rows[0], &rows[2], &rows[3]);
t2 = _mm_unpacklo_epi64(m3, m1);
tt = _mm_blend_epi16(t2, m2, 0xC0);
t2 = _mm_shuffle_epi32(tt, _MM_SHUFFLE(1, 3, 2, 0));
g1(&rows[0], &rows[1], &rows[2], &rows[3], t2);
t3 = _mm_unpackhi_epi32(m1, m3);
tt = _mm_unpacklo_epi32(m2, t3);
t3 = _mm_shuffle_epi32(tt, _MM_SHUFFLE(0, 1, 3, 2));
g2(&rows[0], &rows[1], &rows[2], &rows[3], t3);
undiagonalize(&rows[0], &rows[2], &rows[3]);
m0 = t0;
m1 = t1;
m2 = t2;
m3 = t3;
// Round 6
t0 = _mm_shuffle_ps2(m0, m1, _MM_SHUFFLE(3, 1, 1, 2));
t0 = _mm_shuffle_epi32(t0, _MM_SHUFFLE(0, 3, 2, 1));
g1(&rows[0], &rows[1], &rows[2], &rows[3], t0);
t1 = _mm_shuffle_ps2(m2, m3, _MM_SHUFFLE(3, 3, 2, 2));
tt = _mm_shuffle_epi32(m0, _MM_SHUFFLE(0, 0, 3, 3));
t1 = _mm_blend_epi16(tt, t1, 0xCC);
g2(&rows[0], &rows[1], &rows[2], &rows[3], t1);
diagonalize(&rows[0], &rows[2], &rows[3]);
t2 = _mm_unpacklo_epi64(m3, m1);
tt = _mm_blend_epi16(t2, m2, 0xC0);
t2 = _mm_shuffle_epi32(tt, _MM_SHUFFLE(1, 3, 2, 0));
g1(&rows[0], &rows[1], &rows[2], &rows[3], t2);
t3 = _mm_unpackhi_epi32(m1, m3);
tt = _mm_unpacklo_epi32(m2, t3);
t3 = _mm_shuffle_epi32(tt, _MM_SHUFFLE(0, 1, 3, 2));
g2(&rows[0], &rows[1], &rows[2], &rows[3], t3);
undiagonalize(&rows[0], &rows[2], &rows[3]);
m0 = t0;
m1 = t1;
m2 = t2;
m3 = t3;
// Round 7
t0 = _mm_shuffle_ps2(m0, m1, _MM_SHUFFLE(3, 1, 1, 2));
t0 = _mm_shuffle_epi32(t0, _MM_SHUFFLE(0, 3, 2, 1));
g1(&rows[0], &rows[1], &rows[2], &rows[3], t0);
t1 = _mm_shuffle_ps2(m2, m3, _MM_SHUFFLE(3, 3, 2, 2));
tt = _mm_shuffle_epi32(m0, _MM_SHUFFLE(0, 0, 3, 3));
t1 = _mm_blend_epi16(tt, t1, 0xCC);
g2(&rows[0], &rows[1], &rows[2], &rows[3], t1);
diagonalize(&rows[0], &rows[2], &rows[3]);
t2 = _mm_unpacklo_epi64(m3, m1);
tt = _mm_blend_epi16(t2, m2, 0xC0);
t2 = _mm_shuffle_epi32(tt, _MM_SHUFFLE(1, 3, 2, 0));
g1(&rows[0], &rows[1], &rows[2], &rows[3], t2);
t3 = _mm_unpackhi_epi32(m1, m3);
tt = _mm_unpacklo_epi32(m2, t3);
t3 = _mm_shuffle_epi32(tt, _MM_SHUFFLE(0, 1, 3, 2));
g2(&rows[0], &rows[1], &rows[2], &rows[3], t3);
undiagonalize(&rows[0], &rows[2], &rows[3]);
}
void blake3_compress_xof_avx512(const uint32_t cv[8],
const uint8_t block[BLAKE3_BLOCK_LEN],
uint8_t block_len, uint64_t counter,
uint8_t flags, uint8_t out[64]) {
__m128i rows[4];
compress_pre(rows, cv, block, block_len, counter, flags);
storeu_128(xor_128(rows[0], rows[2]), &out[0]);
storeu_128(xor_128(rows[1], rows[3]), &out[16]);
storeu_128(xor_128(rows[2], loadu_128((uint8_t *)&cv[0])), &out[32]);
storeu_128(xor_128(rows[3], loadu_128((uint8_t *)&cv[4])), &out[48]);
}
void blake3_compress_in_place_avx512(uint32_t cv[8],
const uint8_t block[BLAKE3_BLOCK_LEN],
uint8_t block_len, uint64_t counter,
uint8_t flags) {
__m128i rows[4];
compress_pre(rows, cv, block, block_len, counter, flags);
storeu_128(xor_128(rows[0], rows[2]), (uint8_t *)&cv[0]);
storeu_128(xor_128(rows[1], rows[3]), (uint8_t *)&cv[4]);
}
/*
* ----------------------------------------------------------------------------
* hash4_avx512
* ----------------------------------------------------------------------------
*/
INLINE void round_fn4(__m128i v[16], __m128i m[16], size_t r) {
v[0] = add_128(v[0], m[(size_t)MSG_SCHEDULE[r][0]]);
v[1] = add_128(v[1], m[(size_t)MSG_SCHEDULE[r][2]]);
v[2] = add_128(v[2], m[(size_t)MSG_SCHEDULE[r][4]]);
v[3] = add_128(v[3], m[(size_t)MSG_SCHEDULE[r][6]]);
v[0] = add_128(v[0], v[4]);
v[1] = add_128(v[1], v[5]);
v[2] = add_128(v[2], v[6]);
v[3] = add_128(v[3], v[7]);
v[12] = xor_128(v[12], v[0]);
v[13] = xor_128(v[13], v[1]);
v[14] = xor_128(v[14], v[2]);
v[15] = xor_128(v[15], v[3]);
v[12] = rot16_128(v[12]);
v[13] = rot16_128(v[13]);
v[14] = rot16_128(v[14]);
v[15] = rot16_128(v[15]);
v[8] = add_128(v[8], v[12]);
v[9] = add_128(v[9], v[13]);
v[10] = add_128(v[10], v[14]);
v[11] = add_128(v[11], v[15]);
v[4] = xor_128(v[4], v[8]);
v[5] = xor_128(v[5], v[9]);
v[6] = xor_128(v[6], v[10]);
v[7] = xor_128(v[7], v[11]);
v[4] = rot12_128(v[4]);
v[5] = rot12_128(v[5]);
v[6] = rot12_128(v[6]);
v[7] = rot12_128(v[7]);
v[0] = add_128(v[0], m[(size_t)MSG_SCHEDULE[r][1]]);
v[1] = add_128(v[1], m[(size_t)MSG_SCHEDULE[r][3]]);
v[2] = add_128(v[2], m[(size_t)MSG_SCHEDULE[r][5]]);
v[3] = add_128(v[3], m[(size_t)MSG_SCHEDULE[r][7]]);
v[0] = add_128(v[0], v[4]);
v[1] = add_128(v[1], v[5]);
v[2] = add_128(v[2], v[6]);
v[3] = add_128(v[3], v[7]);
v[12] = xor_128(v[12], v[0]);
v[13] = xor_128(v[13], v[1]);
v[14] = xor_128(v[14], v[2]);
v[15] = xor_128(v[15], v[3]);
v[12] = rot8_128(v[12]);
v[13] = rot8_128(v[13]);
v[14] = rot8_128(v[14]);
v[15] = rot8_128(v[15]);
v[8] = add_128(v[8], v[12]);
v[9] = add_128(v[9], v[13]);
v[10] = add_128(v[10], v[14]);
v[11] = add_128(v[11], v[15]);
v[4] = xor_128(v[4], v[8]);
v[5] = xor_128(v[5], v[9]);
v[6] = xor_128(v[6], v[10]);
v[7] = xor_128(v[7], v[11]);
v[4] = rot7_128(v[4]);
v[5] = rot7_128(v[5]);
v[6] = rot7_128(v[6]);
v[7] = rot7_128(v[7]);
v[0] = add_128(v[0], m[(size_t)MSG_SCHEDULE[r][8]]);
v[1] = add_128(v[1], m[(size_t)MSG_SCHEDULE[r][10]]);
v[2] = add_128(v[2], m[(size_t)MSG_SCHEDULE[r][12]]);
v[3] = add_128(v[3], m[(size_t)MSG_SCHEDULE[r][14]]);
v[0] = add_128(v[0], v[5]);
v[1] = add_128(v[1], v[6]);
v[2] = add_128(v[2], v[7]);
v[3] = add_128(v[3], v[4]);
v[15] = xor_128(v[15], v[0]);
v[12] = xor_128(v[12], v[1]);
v[13] = xor_128(v[13], v[2]);
v[14] = xor_128(v[14], v[3]);
v[15] = rot16_128(v[15]);
v[12] = rot16_128(v[12]);
v[13] = rot16_128(v[13]);
v[14] = rot16_128(v[14]);
v[10] = add_128(v[10], v[15]);
v[11] = add_128(v[11], v[12]);
v[8] = add_128(v[8], v[13]);
v[9] = add_128(v[9], v[14]);
v[5] = xor_128(v[5], v[10]);
v[6] = xor_128(v[6], v[11]);
v[7] = xor_128(v[7], v[8]);
v[4] = xor_128(v[4], v[9]);
v[5] = rot12_128(v[5]);
v[6] = rot12_128(v[6]);
v[7] = rot12_128(v[7]);
v[4] = rot12_128(v[4]);
v[0] = add_128(v[0], m[(size_t)MSG_SCHEDULE[r][9]]);
v[1] = add_128(v[1], m[(size_t)MSG_SCHEDULE[r][11]]);
v[2] = add_128(v[2], m[(size_t)MSG_SCHEDULE[r][13]]);
v[3] = add_128(v[3], m[(size_t)MSG_SCHEDULE[r][15]]);
v[0] = add_128(v[0], v[5]);
v[1] = add_128(v[1], v[6]);
v[2] = add_128(v[2], v[7]);
v[3] = add_128(v[3], v[4]);
v[15] = xor_128(v[15], v[0]);
v[12] = xor_128(v[12], v[1]);
v[13] = xor_128(v[13], v[2]);
v[14] = xor_128(v[14], v[3]);
v[15] = rot8_128(v[15]);
v[12] = rot8_128(v[12]);
v[13] = rot8_128(v[13]);
v[14] = rot8_128(v[14]);
v[10] = add_128(v[10], v[15]);
v[11] = add_128(v[11], v[12]);
v[8] = add_128(v[8], v[13]);
v[9] = add_128(v[9], v[14]);
v[5] = xor_128(v[5], v[10]);
v[6] = xor_128(v[6], v[11]);
v[7] = xor_128(v[7], v[8]);
v[4] = xor_128(v[4], v[9]);
v[5] = rot7_128(v[5]);
v[6] = rot7_128(v[6]);
v[7] = rot7_128(v[7]);
v[4] = rot7_128(v[4]);
}
INLINE void transpose_vecs_128(__m128i vecs[4]) {
// Interleave 32-bit lates. The low unpack is lanes 00/11 and the high is
// 22/33. Note that this doesn't split the vector into two lanes, as the
// AVX2 counterparts do.
__m128i ab_01 = _mm_unpacklo_epi32(vecs[0], vecs[1]);
__m128i ab_23 = _mm_unpackhi_epi32(vecs[0], vecs[1]);
__m128i cd_01 = _mm_unpacklo_epi32(vecs[2], vecs[3]);
__m128i cd_23 = _mm_unpackhi_epi32(vecs[2], vecs[3]);
// Interleave 64-bit lanes.
__m128i abcd_0 = _mm_unpacklo_epi64(ab_01, cd_01);
__m128i abcd_1 = _mm_unpackhi_epi64(ab_01, cd_01);
__m128i abcd_2 = _mm_unpacklo_epi64(ab_23, cd_23);
__m128i abcd_3 = _mm_unpackhi_epi64(ab_23, cd_23);
vecs[0] = abcd_0;
vecs[1] = abcd_1;
vecs[2] = abcd_2;
vecs[3] = abcd_3;
}
INLINE void transpose_msg_vecs4(const uint8_t *const *inputs,
size_t block_offset, __m128i out[16]) {
out[0] = loadu_128(&inputs[0][block_offset + 0 * sizeof(__m128i)]);
out[1] = loadu_128(&inputs[1][block_offset + 0 * sizeof(__m128i)]);
out[2] = loadu_128(&inputs[2][block_offset + 0 * sizeof(__m128i)]);
out[3] = loadu_128(&inputs[3][block_offset + 0 * sizeof(__m128i)]);
out[4] = loadu_128(&inputs[0][block_offset + 1 * sizeof(__m128i)]);
out[5] = loadu_128(&inputs[1][block_offset + 1 * sizeof(__m128i)]);
out[6] = loadu_128(&inputs[2][block_offset + 1 * sizeof(__m128i)]);
out[7] = loadu_128(&inputs[3][block_offset + 1 * sizeof(__m128i)]);
out[8] = loadu_128(&inputs[0][block_offset + 2 * sizeof(__m128i)]);
out[9] = loadu_128(&inputs[1][block_offset + 2 * sizeof(__m128i)]);
out[10] = loadu_128(&inputs[2][block_offset + 2 * sizeof(__m128i)]);
out[11] = loadu_128(&inputs[3][block_offset + 2 * sizeof(__m128i)]);
out[12] = loadu_128(&inputs[0][block_offset + 3 * sizeof(__m128i)]);
out[13] = loadu_128(&inputs[1][block_offset + 3 * sizeof(__m128i)]);
out[14] = loadu_128(&inputs[2][block_offset + 3 * sizeof(__m128i)]);
out[15] = loadu_128(&inputs[3][block_offset + 3 * sizeof(__m128i)]);
for (size_t i = 0; i < 4; ++i) {
_mm_prefetch((const void *)&inputs[i][block_offset + 256], _MM_HINT_T0);
}
transpose_vecs_128(&out[0]);
transpose_vecs_128(&out[4]);
transpose_vecs_128(&out[8]);
transpose_vecs_128(&out[12]);
}
INLINE void load_counters4(uint64_t counter, bool increment_counter,
__m128i *out_lo, __m128i *out_hi) {
uint64_t mask = (increment_counter ? ~0 : 0);
__m256i mask_vec = _mm256_set1_epi64x(mask);
__m256i deltas = _mm256_setr_epi64x(0, 1, 2, 3);
deltas = _mm256_and_si256(mask_vec, deltas);
__m256i counters =
_mm256_add_epi64(_mm256_set1_epi64x((int64_t)counter), deltas);
*out_lo = _mm256_cvtepi64_epi32(counters);
*out_hi = _mm256_cvtepi64_epi32(_mm256_srli_epi64(counters, 32));
}
static
void blake3_hash4_avx512(const uint8_t *const *inputs, size_t blocks,
const uint32_t key[8], uint64_t counter,
bool increment_counter, uint8_t flags,
uint8_t flags_start, uint8_t flags_end, uint8_t *out) {
__m128i h_vecs[8] = {
set1_128(key[0]), set1_128(key[1]), set1_128(key[2]), set1_128(key[3]),
set1_128(key[4]), set1_128(key[5]), set1_128(key[6]), set1_128(key[7]),
};
__m128i counter_low_vec, counter_high_vec;
load_counters4(counter, increment_counter, &counter_low_vec,
&counter_high_vec);
uint8_t block_flags = flags | flags_start;
for (size_t block = 0; block < blocks; block++) {
if (block + 1 == blocks) {
block_flags |= flags_end;
}
__m128i block_len_vec = set1_128(BLAKE3_BLOCK_LEN);
__m128i block_flags_vec = set1_128(block_flags);
__m128i msg_vecs[16];
transpose_msg_vecs4(inputs, block * BLAKE3_BLOCK_LEN, msg_vecs);
__m128i v[16] = {
h_vecs[0], h_vecs[1], h_vecs[2], h_vecs[3],
h_vecs[4], h_vecs[5], h_vecs[6], h_vecs[7],
set1_128(IV[0]), set1_128(IV[1]), set1_128(IV[2]), set1_128(IV[3]),
counter_low_vec, counter_high_vec, block_len_vec, block_flags_vec,
};
round_fn4(v, msg_vecs, 0);
round_fn4(v, msg_vecs, 1);
round_fn4(v, msg_vecs, 2);
round_fn4(v, msg_vecs, 3);
round_fn4(v, msg_vecs, 4);
round_fn4(v, msg_vecs, 5);
round_fn4(v, msg_vecs, 6);
h_vecs[0] = xor_128(v[0], v[8]);
h_vecs[1] = xor_128(v[1], v[9]);
h_vecs[2] = xor_128(v[2], v[10]);
h_vecs[3] = xor_128(v[3], v[11]);
h_vecs[4] = xor_128(v[4], v[12]);
h_vecs[5] = xor_128(v[5], v[13]);
h_vecs[6] = xor_128(v[6], v[14]);
h_vecs[7] = xor_128(v[7], v[15]);
block_flags = flags;
}
transpose_vecs_128(&h_vecs[0]);
transpose_vecs_128(&h_vecs[4]);
// The first four vecs now contain the first half of each output, and the
// second four vecs contain the second half of each output.
storeu_128(h_vecs[0], &out[0 * sizeof(__m128i)]);
storeu_128(h_vecs[4], &out[1 * sizeof(__m128i)]);
storeu_128(h_vecs[1], &out[2 * sizeof(__m128i)]);
storeu_128(h_vecs[5], &out[3 * sizeof(__m128i)]);
storeu_128(h_vecs[2], &out[4 * sizeof(__m128i)]);
storeu_128(h_vecs[6], &out[5 * sizeof(__m128i)]);
storeu_128(h_vecs[3], &out[6 * sizeof(__m128i)]);
storeu_128(h_vecs[7], &out[7 * sizeof(__m128i)]);
}
/*
* ----------------------------------------------------------------------------
* hash8_avx512
* ----------------------------------------------------------------------------
*/
INLINE void round_fn8(__m256i v[16], __m256i m[16], size_t r) {
v[0] = add_256(v[0], m[(size_t)MSG_SCHEDULE[r][0]]);
v[1] = add_256(v[1], m[(size_t)MSG_SCHEDULE[r][2]]);
v[2] = add_256(v[2], m[(size_t)MSG_SCHEDULE[r][4]]);
v[3] = add_256(v[3], m[(size_t)MSG_SCHEDULE[r][6]]);
v[0] = add_256(v[0], v[4]);
v[1] = add_256(v[1], v[5]);
v[2] = add_256(v[2], v[6]);
v[3] = add_256(v[3], v[7]);
v[12] = xor_256(v[12], v[0]);
v[13] = xor_256(v[13], v[1]);
v[14] = xor_256(v[14], v[2]);
v[15] = xor_256(v[15], v[3]);
v[12] = rot16_256(v[12]);
v[13] = rot16_256(v[13]);
v[14] = rot16_256(v[14]);
v[15] = rot16_256(v[15]);
v[8] = add_256(v[8], v[12]);
v[9] = add_256(v[9], v[13]);
v[10] = add_256(v[10], v[14]);
v[11] = add_256(v[11], v[15]);
v[4] = xor_256(v[4], v[8]);
v[5] = xor_256(v[5], v[9]);
v[6] = xor_256(v[6], v[10]);
v[7] = xor_256(v[7], v[11]);
v[4] = rot12_256(v[4]);
v[5] = rot12_256(v[5]);
v[6] = rot12_256(v[6]);
v[7] = rot12_256(v[7]);
v[0] = add_256(v[0], m[(size_t)MSG_SCHEDULE[r][1]]);
v[1] = add_256(v[1], m[(size_t)MSG_SCHEDULE[r][3]]);
v[2] = add_256(v[2], m[(size_t)MSG_SCHEDULE[r][5]]);
v[3] = add_256(v[3], m[(size_t)MSG_SCHEDULE[r][7]]);
v[0] = add_256(v[0], v[4]);
v[1] = add_256(v[1], v[5]);
v[2] = add_256(v[2], v[6]);
v[3] = add_256(v[3], v[7]);
v[12] = xor_256(v[12], v[0]);
v[13] = xor_256(v[13], v[1]);
v[14] = xor_256(v[14], v[2]);
v[15] = xor_256(v[15], v[3]);
v[12] = rot8_256(v[12]);
v[13] = rot8_256(v[13]);
v[14] = rot8_256(v[14]);
v[15] = rot8_256(v[15]);
v[8] = add_256(v[8], v[12]);
v[9] = add_256(v[9], v[13]);
v[10] = add_256(v[10], v[14]);
v[11] = add_256(v[11], v[15]);
v[4] = xor_256(v[4], v[8]);
v[5] = xor_256(v[5], v[9]);
v[6] = xor_256(v[6], v[10]);
v[7] = xor_256(v[7], v[11]);
v[4] = rot7_256(v[4]);
v[5] = rot7_256(v[5]);
v[6] = rot7_256(v[6]);
v[7] = rot7_256(v[7]);
v[0] = add_256(v[0], m[(size_t)MSG_SCHEDULE[r][8]]);
v[1] = add_256(v[1], m[(size_t)MSG_SCHEDULE[r][10]]);
v[2] = add_256(v[2], m[(size_t)MSG_SCHEDULE[r][12]]);
v[3] = add_256(v[3], m[(size_t)MSG_SCHEDULE[r][14]]);
v[0] = add_256(v[0], v[5]);
v[1] = add_256(v[1], v[6]);
v[2] = add_256(v[2], v[7]);
v[3] = add_256(v[3], v[4]);
v[15] = xor_256(v[15], v[0]);
v[12] = xor_256(v[12], v[1]);
v[13] = xor_256(v[13], v[2]);
v[14] = xor_256(v[14], v[3]);
v[15] = rot16_256(v[15]);
v[12] = rot16_256(v[12]);
v[13] = rot16_256(v[13]);
v[14] = rot16_256(v[14]);
v[10] = add_256(v[10], v[15]);
v[11] = add_256(v[11], v[12]);
v[8] = add_256(v[8], v[13]);
v[9] = add_256(v[9], v[14]);
v[5] = xor_256(v[5], v[10]);
v[6] = xor_256(v[6], v[11]);
v[7] = xor_256(v[7], v[8]);
v[4] = xor_256(v[4], v[9]);
v[5] = rot12_256(v[5]);
v[6] = rot12_256(v[6]);
v[7] = rot12_256(v[7]);
v[4] = rot12_256(v[4]);
v[0] = add_256(v[0], m[(size_t)MSG_SCHEDULE[r][9]]);
v[1] = add_256(v[1], m[(size_t)MSG_SCHEDULE[r][11]]);
v[2] = add_256(v[2], m[(size_t)MSG_SCHEDULE[r][13]]);
v[3] = add_256(v[3], m[(size_t)MSG_SCHEDULE[r][15]]);
v[0] = add_256(v[0], v[5]);
v[1] = add_256(v[1], v[6]);
v[2] = add_256(v[2], v[7]);
v[3] = add_256(v[3], v[4]);
v[15] = xor_256(v[15], v[0]);
v[12] = xor_256(v[12], v[1]);
v[13] = xor_256(v[13], v[2]);
v[14] = xor_256(v[14], v[3]);
v[15] = rot8_256(v[15]);
v[12] = rot8_256(v[12]);
v[13] = rot8_256(v[13]);
v[14] = rot8_256(v[14]);
v[10] = add_256(v[10], v[15]);
v[11] = add_256(v[11], v[12]);
v[8] = add_256(v[8], v[13]);
v[9] = add_256(v[9], v[14]);
v[5] = xor_256(v[5], v[10]);
v[6] = xor_256(v[6], v[11]);
v[7] = xor_256(v[7], v[8]);
v[4] = xor_256(v[4], v[9]);
v[5] = rot7_256(v[5]);
v[6] = rot7_256(v[6]);
v[7] = rot7_256(v[7]);
v[4] = rot7_256(v[4]);
}
INLINE void transpose_vecs_256(__m256i vecs[8]) {
// Interleave 32-bit lanes. The low unpack is lanes 00/11/44/55, and the high
// is 22/33/66/77.
__m256i ab_0145 = _mm256_unpacklo_epi32(vecs[0], vecs[1]);
__m256i ab_2367 = _mm256_unpackhi_epi32(vecs[0], vecs[1]);
__m256i cd_0145 = _mm256_unpacklo_epi32(vecs[2], vecs[3]);
__m256i cd_2367 = _mm256_unpackhi_epi32(vecs[2], vecs[3]);
__m256i ef_0145 = _mm256_unpacklo_epi32(vecs[4], vecs[5]);
__m256i ef_2367 = _mm256_unpackhi_epi32(vecs[4], vecs[5]);
__m256i gh_0145 = _mm256_unpacklo_epi32(vecs[6], vecs[7]);
__m256i gh_2367 = _mm256_unpackhi_epi32(vecs[6], vecs[7]);
// Interleave 64-bit lates. The low unpack is lanes 00/22 and the high is
// 11/33.
__m256i abcd_04 = _mm256_unpacklo_epi64(ab_0145, cd_0145);
__m256i abcd_15 = _mm256_unpackhi_epi64(ab_0145, cd_0145);
__m256i abcd_26 = _mm256_unpacklo_epi64(ab_2367, cd_2367);
__m256i abcd_37 = _mm256_unpackhi_epi64(ab_2367, cd_2367);
__m256i efgh_04 = _mm256_unpacklo_epi64(ef_0145, gh_0145);
__m256i efgh_15 = _mm256_unpackhi_epi64(ef_0145, gh_0145);
__m256i efgh_26 = _mm256_unpacklo_epi64(ef_2367, gh_2367);
__m256i efgh_37 = _mm256_unpackhi_epi64(ef_2367, gh_2367);
// Interleave 128-bit lanes.
vecs[0] = _mm256_permute2x128_si256(abcd_04, efgh_04, 0x20);
vecs[1] = _mm256_permute2x128_si256(abcd_15, efgh_15, 0x20);
vecs[2] = _mm256_permute2x128_si256(abcd_26, efgh_26, 0x20);
vecs[3] = _mm256_permute2x128_si256(abcd_37, efgh_37, 0x20);
vecs[4] = _mm256_permute2x128_si256(abcd_04, efgh_04, 0x31);
vecs[5] = _mm256_permute2x128_si256(abcd_15, efgh_15, 0x31);
vecs[6] = _mm256_permute2x128_si256(abcd_26, efgh_26, 0x31);
vecs[7] = _mm256_permute2x128_si256(abcd_37, efgh_37, 0x31);
}
INLINE void transpose_msg_vecs8(const uint8_t *const *inputs,
size_t block_offset, __m256i out[16]) {
out[0] = loadu_256(&inputs[0][block_offset + 0 * sizeof(__m256i)]);
out[1] = loadu_256(&inputs[1][block_offset + 0 * sizeof(__m256i)]);
out[2] = loadu_256(&inputs[2][block_offset + 0 * sizeof(__m256i)]);
out[3] = loadu_256(&inputs[3][block_offset + 0 * sizeof(__m256i)]);
out[4] = loadu_256(&inputs[4][block_offset + 0 * sizeof(__m256i)]);
out[5] = loadu_256(&inputs[5][block_offset + 0 * sizeof(__m256i)]);
out[6] = loadu_256(&inputs[6][block_offset + 0 * sizeof(__m256i)]);
out[7] = loadu_256(&inputs[7][block_offset + 0 * sizeof(__m256i)]);
out[8] = loadu_256(&inputs[0][block_offset + 1 * sizeof(__m256i)]);
out[9] = loadu_256(&inputs[1][block_offset + 1 * sizeof(__m256i)]);
out[10] = loadu_256(&inputs[2][block_offset + 1 * sizeof(__m256i)]);
out[11] = loadu_256(&inputs[3][block_offset + 1 * sizeof(__m256i)]);
out[12] = loadu_256(&inputs[4][block_offset + 1 * sizeof(__m256i)]);
out[13] = loadu_256(&inputs[5][block_offset + 1 * sizeof(__m256i)]);
out[14] = loadu_256(&inputs[6][block_offset + 1 * sizeof(__m256i)]);
out[15] = loadu_256(&inputs[7][block_offset + 1 * sizeof(__m256i)]);
for (size_t i = 0; i < 8; ++i) {
_mm_prefetch((const void *)&inputs[i][block_offset + 256], _MM_HINT_T0);
}
transpose_vecs_256(&out[0]);
transpose_vecs_256(&out[8]);
}
INLINE void load_counters8(uint64_t counter, bool increment_counter,
__m256i *out_lo, __m256i *out_hi) {
uint64_t mask = (increment_counter ? ~0 : 0);
__m512i mask_vec = _mm512_set1_epi64(mask);
__m512i deltas = _mm512_setr_epi64(0, 1, 2, 3, 4, 5, 6, 7);
deltas = _mm512_and_si512(mask_vec, deltas);
__m512i counters =
_mm512_add_epi64(_mm512_set1_epi64((int64_t)counter), deltas);
*out_lo = _mm512_cvtepi64_epi32(counters);
*out_hi = _mm512_cvtepi64_epi32(_mm512_srli_epi64(counters, 32));
}
static
void blake3_hash8_avx512(const uint8_t *const *inputs, size_t blocks,
const uint32_t key[8], uint64_t counter,
bool increment_counter, uint8_t flags,
uint8_t flags_start, uint8_t flags_end, uint8_t *out) {
__m256i h_vecs[8] = {
set1_256(key[0]), set1_256(key[1]), set1_256(key[2]), set1_256(key[3]),
set1_256(key[4]), set1_256(key[5]), set1_256(key[6]), set1_256(key[7]),
};
__m256i counter_low_vec, counter_high_vec;
load_counters8(counter, increment_counter, &counter_low_vec,
&counter_high_vec);
uint8_t block_flags = flags | flags_start;
for (size_t block = 0; block < blocks; block++) {
if (block + 1 == blocks) {
block_flags |= flags_end;
}
__m256i block_len_vec = set1_256(BLAKE3_BLOCK_LEN);
__m256i block_flags_vec = set1_256(block_flags);
__m256i msg_vecs[16];
transpose_msg_vecs8(inputs, block * BLAKE3_BLOCK_LEN, msg_vecs);
__m256i v[16] = {
h_vecs[0], h_vecs[1], h_vecs[2], h_vecs[3],
h_vecs[4], h_vecs[5], h_vecs[6], h_vecs[7],
set1_256(IV[0]), set1_256(IV[1]), set1_256(IV[2]), set1_256(IV[3]),
counter_low_vec, counter_high_vec, block_len_vec, block_flags_vec,
};
round_fn8(v, msg_vecs, 0);
round_fn8(v, msg_vecs, 1);
round_fn8(v, msg_vecs, 2);
round_fn8(v, msg_vecs, 3);
round_fn8(v, msg_vecs, 4);
round_fn8(v, msg_vecs, 5);
round_fn8(v, msg_vecs, 6);
h_vecs[0] = xor_256(v[0], v[8]);
h_vecs[1] = xor_256(v[1], v[9]);
h_vecs[2] = xor_256(v[2], v[10]);
h_vecs[3] = xor_256(v[3], v[11]);
h_vecs[4] = xor_256(v[4], v[12]);
h_vecs[5] = xor_256(v[5], v[13]);
h_vecs[6] = xor_256(v[6], v[14]);
h_vecs[7] = xor_256(v[7], v[15]);
block_flags = flags;
}
transpose_vecs_256(h_vecs);
storeu_256(h_vecs[0], &out[0 * sizeof(__m256i)]);
storeu_256(h_vecs[1], &out[1 * sizeof(__m256i)]);
storeu_256(h_vecs[2], &out[2 * sizeof(__m256i)]);
storeu_256(h_vecs[3], &out[3 * sizeof(__m256i)]);
storeu_256(h_vecs[4], &out[4 * sizeof(__m256i)]);
storeu_256(h_vecs[5], &out[5 * sizeof(__m256i)]);
storeu_256(h_vecs[6], &out[6 * sizeof(__m256i)]);
storeu_256(h_vecs[7], &out[7 * sizeof(__m256i)]);
}
/*
* ----------------------------------------------------------------------------
* hash16_avx512
* ----------------------------------------------------------------------------
*/
INLINE void round_fn16(__m512i v[16], __m512i m[16], size_t r) {
v[0] = add_512(v[0], m[(size_t)MSG_SCHEDULE[r][0]]);
v[1] = add_512(v[1], m[(size_t)MSG_SCHEDULE[r][2]]);
v[2] = add_512(v[2], m[(size_t)MSG_SCHEDULE[r][4]]);
v[3] = add_512(v[3], m[(size_t)MSG_SCHEDULE[r][6]]);
v[0] = add_512(v[0], v[4]);
v[1] = add_512(v[1], v[5]);
v[2] = add_512(v[2], v[6]);
v[3] = add_512(v[3], v[7]);
v[12] = xor_512(v[12], v[0]);
v[13] = xor_512(v[13], v[1]);
v[14] = xor_512(v[14], v[2]);
v[15] = xor_512(v[15], v[3]);
v[12] = rot16_512(v[12]);
v[13] = rot16_512(v[13]);
v[14] = rot16_512(v[14]);
v[15] = rot16_512(v[15]);
v[8] = add_512(v[8], v[12]);
v[9] = add_512(v[9], v[13]);
v[10] = add_512(v[10], v[14]);
v[11] = add_512(v[11], v[15]);
v[4] = xor_512(v[4], v[8]);
v[5] = xor_512(v[5], v[9]);
v[6] = xor_512(v[6], v[10]);
v[7] = xor_512(v[7], v[11]);
v[4] = rot12_512(v[4]);
v[5] = rot12_512(v[5]);
v[6] = rot12_512(v[6]);
v[7] = rot12_512(v[7]);
v[0] = add_512(v[0], m[(size_t)MSG_SCHEDULE[r][1]]);
v[1] = add_512(v[1], m[(size_t)MSG_SCHEDULE[r][3]]);
v[2] = add_512(v[2], m[(size_t)MSG_SCHEDULE[r][5]]);
v[3] = add_512(v[3], m[(size_t)MSG_SCHEDULE[r][7]]);
v[0] = add_512(v[0], v[4]);
v[1] = add_512(v[1], v[5]);
v[2] = add_512(v[2], v[6]);
v[3] = add_512(v[3], v[7]);
v[12] = xor_512(v[12], v[0]);
v[13] = xor_512(v[13], v[1]);
v[14] = xor_512(v[14], v[2]);
v[15] = xor_512(v[15], v[3]);
v[12] = rot8_512(v[12]);
v[13] = rot8_512(v[13]);
v[14] = rot8_512(v[14]);
v[15] = rot8_512(v[15]);
v[8] = add_512(v[8], v[12]);
v[9] = add_512(v[9], v[13]);
v[10] = add_512(v[10], v[14]);
v[11] = add_512(v[11], v[15]);
v[4] = xor_512(v[4], v[8]);
v[5] = xor_512(v[5], v[9]);
v[6] = xor_512(v[6], v[10]);
v[7] = xor_512(v[7], v[11]);
v[4] = rot7_512(v[4]);
v[5] = rot7_512(v[5]);
v[6] = rot7_512(v[6]);
v[7] = rot7_512(v[7]);
v[0] = add_512(v[0], m[(size_t)MSG_SCHEDULE[r][8]]);
v[1] = add_512(v[1], m[(size_t)MSG_SCHEDULE[r][10]]);
v[2] = add_512(v[2], m[(size_t)MSG_SCHEDULE[r][12]]);
v[3] = add_512(v[3], m[(size_t)MSG_SCHEDULE[r][14]]);
v[0] = add_512(v[0], v[5]);
v[1] = add_512(v[1], v[6]);
v[2] = add_512(v[2], v[7]);
v[3] = add_512(v[3], v[4]);
v[15] = xor_512(v[15], v[0]);
v[12] = xor_512(v[12], v[1]);
v[13] = xor_512(v[13], v[2]);
v[14] = xor_512(v[14], v[3]);
v[15] = rot16_512(v[15]);
v[12] = rot16_512(v[12]);
v[13] = rot16_512(v[13]);
v[14] = rot16_512(v[14]);
v[10] = add_512(v[10], v[15]);
v[11] = add_512(v[11], v[12]);
v[8] = add_512(v[8], v[13]);
v[9] = add_512(v[9], v[14]);
v[5] = xor_512(v[5], v[10]);
v[6] = xor_512(v[6], v[11]);
v[7] = xor_512(v[7], v[8]);
v[4] = xor_512(v[4], v[9]);
v[5] = rot12_512(v[5]);
v[6] = rot12_512(v[6]);
v[7] = rot12_512(v[7]);
v[4] = rot12_512(v[4]);
v[0] = add_512(v[0], m[(size_t)MSG_SCHEDULE[r][9]]);
v[1] = add_512(v[1], m[(size_t)MSG_SCHEDULE[r][11]]);
v[2] = add_512(v[2], m[(size_t)MSG_SCHEDULE[r][13]]);
v[3] = add_512(v[3], m[(size_t)MSG_SCHEDULE[r][15]]);
v[0] = add_512(v[0], v[5]);
v[1] = add_512(v[1], v[6]);
v[2] = add_512(v[2], v[7]);
v[3] = add_512(v[3], v[4]);
v[15] = xor_512(v[15], v[0]);
v[12] = xor_512(v[12], v[1]);
v[13] = xor_512(v[13], v[2]);
v[14] = xor_512(v[14], v[3]);
v[15] = rot8_512(v[15]);
v[12] = rot8_512(v[12]);
v[13] = rot8_512(v[13]);
v[14] = rot8_512(v[14]);
v[10] = add_512(v[10], v[15]);
v[11] = add_512(v[11], v[12]);
v[8] = add_512(v[8], v[13]);
v[9] = add_512(v[9], v[14]);
v[5] = xor_512(v[5], v[10]);
v[6] = xor_512(v[6], v[11]);
v[7] = xor_512(v[7], v[8]);
v[4] = xor_512(v[4], v[9]);
v[5] = rot7_512(v[5]);
v[6] = rot7_512(v[6]);
v[7] = rot7_512(v[7]);
v[4] = rot7_512(v[4]);
}
// 0b10001000, or lanes a0/a2/b0/b2 in little-endian order
#define LO_IMM8 0x88
INLINE __m512i unpack_lo_128(__m512i a, __m512i b) {
return _mm512_shuffle_i32x4(a, b, LO_IMM8);
}
// 0b11011101, or lanes a1/a3/b1/b3 in little-endian order
#define HI_IMM8 0xdd
INLINE __m512i unpack_hi_128(__m512i a, __m512i b) {
return _mm512_shuffle_i32x4(a, b, HI_IMM8);
}
INLINE void transpose_vecs_512(__m512i vecs[16]) {
// Interleave 32-bit lanes. The _0 unpack is lanes
// 0/0/1/1/4/4/5/5/8/8/9/9/12/12/13/13, and the _2 unpack is lanes
// 2/2/3/3/6/6/7/7/10/10/11/11/14/14/15/15.
__m512i ab_0 = _mm512_unpacklo_epi32(vecs[0], vecs[1]);
__m512i ab_2 = _mm512_unpackhi_epi32(vecs[0], vecs[1]);
__m512i cd_0 = _mm512_unpacklo_epi32(vecs[2], vecs[3]);
__m512i cd_2 = _mm512_unpackhi_epi32(vecs[2], vecs[3]);
__m512i ef_0 = _mm512_unpacklo_epi32(vecs[4], vecs[5]);
__m512i ef_2 = _mm512_unpackhi_epi32(vecs[4], vecs[5]);
__m512i gh_0 = _mm512_unpacklo_epi32(vecs[6], vecs[7]);
__m512i gh_2 = _mm512_unpackhi_epi32(vecs[6], vecs[7]);
__m512i ij_0 = _mm512_unpacklo_epi32(vecs[8], vecs[9]);
__m512i ij_2 = _mm512_unpackhi_epi32(vecs[8], vecs[9]);
__m512i kl_0 = _mm512_unpacklo_epi32(vecs[10], vecs[11]);
__m512i kl_2 = _mm512_unpackhi_epi32(vecs[10], vecs[11]);
__m512i mn_0 = _mm512_unpacklo_epi32(vecs[12], vecs[13]);
__m512i mn_2 = _mm512_unpackhi_epi32(vecs[12], vecs[13]);
__m512i op_0 = _mm512_unpacklo_epi32(vecs[14], vecs[15]);
__m512i op_2 = _mm512_unpackhi_epi32(vecs[14], vecs[15]);
// Interleave 64-bit lates. The _0 unpack is lanes
// 0/0/0/0/4/4/4/4/8/8/8/8/12/12/12/12, the _1 unpack is lanes
// 1/1/1/1/5/5/5/5/9/9/9/9/13/13/13/13, the _2 unpack is lanes
// 2/2/2/2/6/6/6/6/10/10/10/10/14/14/14/14, and the _3 unpack is lanes
// 3/3/3/3/7/7/7/7/11/11/11/11/15/15/15/15.
__m512i abcd_0 = _mm512_unpacklo_epi64(ab_0, cd_0);
__m512i abcd_1 = _mm512_unpackhi_epi64(ab_0, cd_0);
__m512i abcd_2 = _mm512_unpacklo_epi64(ab_2, cd_2);
__m512i abcd_3 = _mm512_unpackhi_epi64(ab_2, cd_2);
__m512i efgh_0 = _mm512_unpacklo_epi64(ef_0, gh_0);
__m512i efgh_1 = _mm512_unpackhi_epi64(ef_0, gh_0);
__m512i efgh_2 = _mm512_unpacklo_epi64(ef_2, gh_2);
__m512i efgh_3 = _mm512_unpackhi_epi64(ef_2, gh_2);
__m512i ijkl_0 = _mm512_unpacklo_epi64(ij_0, kl_0);
__m512i ijkl_1 = _mm512_unpackhi_epi64(ij_0, kl_0);
__m512i ijkl_2 = _mm512_unpacklo_epi64(ij_2, kl_2);
__m512i ijkl_3 = _mm512_unpackhi_epi64(ij_2, kl_2);
__m512i mnop_0 = _mm512_unpacklo_epi64(mn_0, op_0);
__m512i mnop_1 = _mm512_unpackhi_epi64(mn_0, op_0);
__m512i mnop_2 = _mm512_unpacklo_epi64(mn_2, op_2);
__m512i mnop_3 = _mm512_unpackhi_epi64(mn_2, op_2);
// Interleave 128-bit lanes. The _0 unpack is
// 0/0/0/0/8/8/8/8/0/0/0/0/8/8/8/8, the _1 unpack is
// 1/1/1/1/9/9/9/9/1/1/1/1/9/9/9/9, and so on.
__m512i abcdefgh_0 = unpack_lo_128(abcd_0, efgh_0);
__m512i abcdefgh_1 = unpack_lo_128(abcd_1, efgh_1);
__m512i abcdefgh_2 = unpack_lo_128(abcd_2, efgh_2);
__m512i abcdefgh_3 = unpack_lo_128(abcd_3, efgh_3);
__m512i abcdefgh_4 = unpack_hi_128(abcd_0, efgh_0);
__m512i abcdefgh_5 = unpack_hi_128(abcd_1, efgh_1);
__m512i abcdefgh_6 = unpack_hi_128(abcd_2, efgh_2);
__m512i abcdefgh_7 = unpack_hi_128(abcd_3, efgh_3);
__m512i ijklmnop_0 = unpack_lo_128(ijkl_0, mnop_0);
__m512i ijklmnop_1 = unpack_lo_128(ijkl_1, mnop_1);
__m512i ijklmnop_2 = unpack_lo_128(ijkl_2, mnop_2);
__m512i ijklmnop_3 = unpack_lo_128(ijkl_3, mnop_3);
__m512i ijklmnop_4 = unpack_hi_128(ijkl_0, mnop_0);
__m512i ijklmnop_5 = unpack_hi_128(ijkl_1, mnop_1);
__m512i ijklmnop_6 = unpack_hi_128(ijkl_2, mnop_2);
__m512i ijklmnop_7 = unpack_hi_128(ijkl_3, mnop_3);
// Interleave 128-bit lanes again for the final outputs.
vecs[0] = unpack_lo_128(abcdefgh_0, ijklmnop_0);
vecs[1] = unpack_lo_128(abcdefgh_1, ijklmnop_1);
vecs[2] = unpack_lo_128(abcdefgh_2, ijklmnop_2);
vecs[3] = unpack_lo_128(abcdefgh_3, ijklmnop_3);
vecs[4] = unpack_lo_128(abcdefgh_4, ijklmnop_4);
vecs[5] = unpack_lo_128(abcdefgh_5, ijklmnop_5);
vecs[6] = unpack_lo_128(abcdefgh_6, ijklmnop_6);
vecs[7] = unpack_lo_128(abcdefgh_7, ijklmnop_7);
vecs[8] = unpack_hi_128(abcdefgh_0, ijklmnop_0);
vecs[9] = unpack_hi_128(abcdefgh_1, ijklmnop_1);
vecs[10] = unpack_hi_128(abcdefgh_2, ijklmnop_2);
vecs[11] = unpack_hi_128(abcdefgh_3, ijklmnop_3);
vecs[12] = unpack_hi_128(abcdefgh_4, ijklmnop_4);
vecs[13] = unpack_hi_128(abcdefgh_5, ijklmnop_5);
vecs[14] = unpack_hi_128(abcdefgh_6, ijklmnop_6);
vecs[15] = unpack_hi_128(abcdefgh_7, ijklmnop_7);
}
INLINE void transpose_msg_vecs16(const uint8_t *const *inputs,
size_t block_offset, __m512i out[16]) {
out[0] = loadu_512(&inputs[0][block_offset]);
out[1] = loadu_512(&inputs[1][block_offset]);
out[2] = loadu_512(&inputs[2][block_offset]);
out[3] = loadu_512(&inputs[3][block_offset]);
out[4] = loadu_512(&inputs[4][block_offset]);
out[5] = loadu_512(&inputs[5][block_offset]);
out[6] = loadu_512(&inputs[6][block_offset]);
out[7] = loadu_512(&inputs[7][block_offset]);
out[8] = loadu_512(&inputs[8][block_offset]);
out[9] = loadu_512(&inputs[9][block_offset]);
out[10] = loadu_512(&inputs[10][block_offset]);
out[11] = loadu_512(&inputs[11][block_offset]);
out[12] = loadu_512(&inputs[12][block_offset]);
out[13] = loadu_512(&inputs[13][block_offset]);
out[14] = loadu_512(&inputs[14][block_offset]);
out[15] = loadu_512(&inputs[15][block_offset]);
for (size_t i = 0; i < 16; ++i) {
_mm_prefetch((const void *)&inputs[i][block_offset + 256], _MM_HINT_T0);
}
transpose_vecs_512(out);
}
INLINE void load_counters16(uint64_t counter, bool increment_counter,
__m512i *out_lo, __m512i *out_hi) {
const __m512i mask = _mm512_set1_epi32(-(int32_t)increment_counter);
const __m512i add0 = _mm512_set_epi32(15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0);
const __m512i add1 = _mm512_and_si512(mask, add0);
__m512i l = _mm512_add_epi32(_mm512_set1_epi32((int32_t)counter), add1);
__mmask16 carry = _mm512_cmp_epu32_mask(l, add1, _MM_CMPINT_LT);
__m512i h = _mm512_mask_add_epi32(_mm512_set1_epi32((int32_t)(counter >> 32)), carry, _mm512_set1_epi32((int32_t)(counter >> 32)), _mm512_set1_epi32(1));
*out_lo = l;
*out_hi = h;
}
static
void blake3_hash16_avx512(const uint8_t *const *inputs, size_t blocks,
const uint32_t key[8], uint64_t counter,
bool increment_counter, uint8_t flags,
uint8_t flags_start, uint8_t flags_end,
uint8_t *out) {
__m512i h_vecs[8] = {
set1_512(key[0]), set1_512(key[1]), set1_512(key[2]), set1_512(key[3]),
set1_512(key[4]), set1_512(key[5]), set1_512(key[6]), set1_512(key[7]),
};
__m512i counter_low_vec, counter_high_vec;
load_counters16(counter, increment_counter, &counter_low_vec,
&counter_high_vec);
uint8_t block_flags = flags | flags_start;
for (size_t block = 0; block < blocks; block++) {
if (block + 1 == blocks) {
block_flags |= flags_end;
}
__m512i block_len_vec = set1_512(BLAKE3_BLOCK_LEN);
__m512i block_flags_vec = set1_512(block_flags);
__m512i msg_vecs[16];
transpose_msg_vecs16(inputs, block * BLAKE3_BLOCK_LEN, msg_vecs);
__m512i v[16] = {
h_vecs[0], h_vecs[1], h_vecs[2], h_vecs[3],
h_vecs[4], h_vecs[5], h_vecs[6], h_vecs[7],
set1_512(IV[0]), set1_512(IV[1]), set1_512(IV[2]), set1_512(IV[3]),
counter_low_vec, counter_high_vec, block_len_vec, block_flags_vec,
};
round_fn16(v, msg_vecs, 0);
round_fn16(v, msg_vecs, 1);
round_fn16(v, msg_vecs, 2);
round_fn16(v, msg_vecs, 3);
round_fn16(v, msg_vecs, 4);
round_fn16(v, msg_vecs, 5);
round_fn16(v, msg_vecs, 6);
h_vecs[0] = xor_512(v[0], v[8]);
h_vecs[1] = xor_512(v[1], v[9]);
h_vecs[2] = xor_512(v[2], v[10]);
h_vecs[3] = xor_512(v[3], v[11]);
h_vecs[4] = xor_512(v[4], v[12]);
h_vecs[5] = xor_512(v[5], v[13]);
h_vecs[6] = xor_512(v[6], v[14]);
h_vecs[7] = xor_512(v[7], v[15]);
block_flags = flags;
}
// transpose_vecs_512 operates on a 16x16 matrix of words, but we only have 8
// state vectors. Pad the matrix with zeros. After transposition, store the
// lower half of each vector.
__m512i padded[16] = {
h_vecs[0], h_vecs[1], h_vecs[2], h_vecs[3],
h_vecs[4], h_vecs[5], h_vecs[6], h_vecs[7],
set1_512(0), set1_512(0), set1_512(0), set1_512(0),
set1_512(0), set1_512(0), set1_512(0), set1_512(0),
};
transpose_vecs_512(padded);
_mm256_mask_storeu_epi32(&out[0 * sizeof(__m256i)], (__mmask8)-1, _mm512_castsi512_si256(padded[0]));
_mm256_mask_storeu_epi32(&out[1 * sizeof(__m256i)], (__mmask8)-1, _mm512_castsi512_si256(padded[1]));
_mm256_mask_storeu_epi32(&out[2 * sizeof(__m256i)], (__mmask8)-1, _mm512_castsi512_si256(padded[2]));
_mm256_mask_storeu_epi32(&out[3 * sizeof(__m256i)], (__mmask8)-1, _mm512_castsi512_si256(padded[3]));
_mm256_mask_storeu_epi32(&out[4 * sizeof(__m256i)], (__mmask8)-1, _mm512_castsi512_si256(padded[4]));
_mm256_mask_storeu_epi32(&out[5 * sizeof(__m256i)], (__mmask8)-1, _mm512_castsi512_si256(padded[5]));
_mm256_mask_storeu_epi32(&out[6 * sizeof(__m256i)], (__mmask8)-1, _mm512_castsi512_si256(padded[6]));
_mm256_mask_storeu_epi32(&out[7 * sizeof(__m256i)], (__mmask8)-1, _mm512_castsi512_si256(padded[7]));
_mm256_mask_storeu_epi32(&out[8 * sizeof(__m256i)], (__mmask8)-1, _mm512_castsi512_si256(padded[8]));
_mm256_mask_storeu_epi32(&out[9 * sizeof(__m256i)], (__mmask8)-1, _mm512_castsi512_si256(padded[9]));
_mm256_mask_storeu_epi32(&out[10 * sizeof(__m256i)], (__mmask8)-1, _mm512_castsi512_si256(padded[10]));
_mm256_mask_storeu_epi32(&out[11 * sizeof(__m256i)], (__mmask8)-1, _mm512_castsi512_si256(padded[11]));
_mm256_mask_storeu_epi32(&out[12 * sizeof(__m256i)], (__mmask8)-1, _mm512_castsi512_si256(padded[12]));
_mm256_mask_storeu_epi32(&out[13 * sizeof(__m256i)], (__mmask8)-1, _mm512_castsi512_si256(padded[13]));
_mm256_mask_storeu_epi32(&out[14 * sizeof(__m256i)], (__mmask8)-1, _mm512_castsi512_si256(padded[14]));
_mm256_mask_storeu_epi32(&out[15 * sizeof(__m256i)], (__mmask8)-1, _mm512_castsi512_si256(padded[15]));
}
/*
* ----------------------------------------------------------------------------
* hash_many_avx512
* ----------------------------------------------------------------------------
*/
INLINE void hash_one_avx512(const uint8_t *input, size_t blocks,
const uint32_t key[8], uint64_t counter,
uint8_t flags, uint8_t flags_start,
uint8_t flags_end, uint8_t out[BLAKE3_OUT_LEN]) {
uint32_t cv[8];
memcpy(cv, key, BLAKE3_KEY_LEN);
uint8_t block_flags = flags | flags_start;
while (blocks > 0) {
if (blocks == 1) {
block_flags |= flags_end;
}
blake3_compress_in_place_avx512(cv, input, BLAKE3_BLOCK_LEN, counter,
block_flags);
input = &input[BLAKE3_BLOCK_LEN];
blocks -= 1;
block_flags = flags;
}
memcpy(out, cv, BLAKE3_OUT_LEN);
}
void blake3_hash_many_avx512(const uint8_t *const *inputs, size_t num_inputs,
size_t blocks, const uint32_t key[8],
uint64_t counter, bool increment_counter,
uint8_t flags, uint8_t flags_start,
uint8_t flags_end, uint8_t *out) {
while (num_inputs >= 16) {
blake3_hash16_avx512(inputs, blocks, key, counter, increment_counter, flags,
flags_start, flags_end, out);
if (increment_counter) {
counter += 16;
}
inputs += 16;
num_inputs -= 16;
out = &out[16 * BLAKE3_OUT_LEN];
}
while (num_inputs >= 8) {
blake3_hash8_avx512(inputs, blocks, key, counter, increment_counter, flags,
flags_start, flags_end, out);
if (increment_counter) {
counter += 8;
}
inputs += 8;
num_inputs -= 8;
out = &out[8 * BLAKE3_OUT_LEN];
}
while (num_inputs >= 4) {
blake3_hash4_avx512(inputs, blocks, key, counter, increment_counter, flags,
flags_start, flags_end, out);
if (increment_counter) {
counter += 4;
}
inputs += 4;
num_inputs -= 4;
out = &out[4 * BLAKE3_OUT_LEN];
}
while (num_inputs > 0) {
hash_one_avx512(inputs[0], blocks, key, counter, flags, flags_start,
flags_end, out);
if (increment_counter) {
counter += 1;
}
inputs += 1;
num_inputs -= 1;
out = &out[BLAKE3_OUT_LEN];
}
}
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