#include "crypto_encode_857x1723.h" #include /* auto-generated; do not edit */ #define int16 int16_t #define uint16 uint16_t #define uint32 uint32_t void PQCLEAN_SNTRUP857_AVX2_crypto_encode_857x1723(unsigned char *out, const void *v) { const int16 *R0 = v; /* XXX: caller could overlap R with input */ uint16 R[429]; long i; const uint16 *reading; uint16 *writing; uint16 r0, r1; uint32 r2; uint32 s0; reading = (uint16 *) R0; writing = R; i = 54; while (i > 0) { __m256i x, y; --i; if (!i) { reading -= 8; writing -= 4; out -= 4; } x = _mm256_loadu_si256((__m256i *) reading); x = _mm256_add_epi16(x, _mm256_set1_epi16(2583)); x &= _mm256_set1_epi16(16383); x = _mm256_mulhi_epi16(x, _mm256_set1_epi16(21846)); y = x & _mm256_set1_epi32(65535); x = _mm256_srli_epi32(x, 16); x = _mm256_mullo_epi32(x, _mm256_set1_epi32(1723)); x = _mm256_add_epi32(y, x); x = _mm256_shuffle_epi8(x, _mm256_set_epi8( 12, 8, 4, 0, 12, 8, 4, 0, 14, 13, 10, 9, 6, 5, 2, 1, 12, 8, 4, 0, 12, 8, 4, 0, 14, 13, 10, 9, 6, 5, 2, 1 )); x = _mm256_permute4x64_epi64(x, 0xd8); _mm_storeu_si128((__m128i *) writing, _mm256_extractf128_si256(x, 0)); s0 = _mm256_extract_epi32(x, 4); *out++ = s0; s0 >>= 8; *out++ = s0; s0 >>= 8; *out++ = s0; s0 >>= 8; *out++ = s0; s0 = _mm256_extract_epi32(x, 6); *out++ = s0; s0 >>= 8; *out++ = s0; s0 >>= 8; *out++ = s0; s0 >>= 8; *out++ = s0; reading += 16; writing += 8; } R[428] = (((R0[856] + 2583) & 16383) * 10923) >> 15; reading = (uint16 *) R; writing = R; i = 14; while (i > 0) { __m256i x, x2, y, y2; --i; if (!i) { reading -= 20; writing -= 10; out -= 20; } x = _mm256_loadu_si256((__m256i *) (reading + 0)); x2 = _mm256_loadu_si256((__m256i *) (reading + 16)); y = x & _mm256_set1_epi32(65535); y2 = x2 & _mm256_set1_epi32(65535); x = _mm256_srli_epi32(x, 16); x2 = _mm256_srli_epi32(x2, 16); x = _mm256_mullo_epi32(x, _mm256_set1_epi32(11597)); x2 = _mm256_mullo_epi32(x2, _mm256_set1_epi32(11597)); x = _mm256_add_epi32(y, x); x2 = _mm256_add_epi32(y2, x2); x = _mm256_shuffle_epi8(x, _mm256_set_epi8( 15, 14, 11, 10, 7, 6, 3, 2, 13, 12, 9, 8, 5, 4, 1, 0, 15, 14, 11, 10, 7, 6, 3, 2, 13, 12, 9, 8, 5, 4, 1, 0 )); x2 = _mm256_shuffle_epi8(x2, _mm256_set_epi8( 15, 14, 11, 10, 7, 6, 3, 2, 13, 12, 9, 8, 5, 4, 1, 0, 15, 14, 11, 10, 7, 6, 3, 2, 13, 12, 9, 8, 5, 4, 1, 0 )); x = _mm256_permute4x64_epi64(x, 0xd8); x2 = _mm256_permute4x64_epi64(x2, 0xd8); _mm256_storeu_si256((__m256i *) writing, _mm256_permute2f128_si256(x, x2, 0x31)); _mm256_storeu_si256((__m256i *) out, _mm256_permute2f128_si256(x, x2, 0x20)); reading += 32; writing += 16; out += 32; } R[214] = R[428]; reading = (uint16 *) R; writing = R; i = 7; while (i > 0) { __m256i x, x2, y, y2; --i; if (!i) { reading -= 10; writing -= 5; out -= 10; } x = _mm256_loadu_si256((__m256i *) (reading + 0)); x2 = _mm256_loadu_si256((__m256i *) (reading + 16)); y = x & _mm256_set1_epi32(65535); y2 = x2 & _mm256_set1_epi32(65535); x = _mm256_srli_epi32(x, 16); x2 = _mm256_srli_epi32(x2, 16); x = _mm256_mullo_epi32(x, _mm256_set1_epi32(2053)); x2 = _mm256_mullo_epi32(x2, _mm256_set1_epi32(2053)); x = _mm256_add_epi32(y, x); x2 = _mm256_add_epi32(y2, x2); x = _mm256_shuffle_epi8(x, _mm256_set_epi8( 15, 14, 11, 10, 7, 6, 3, 2, 13, 12, 9, 8, 5, 4, 1, 0, 15, 14, 11, 10, 7, 6, 3, 2, 13, 12, 9, 8, 5, 4, 1, 0 )); x2 = _mm256_shuffle_epi8(x2, _mm256_set_epi8( 15, 14, 11, 10, 7, 6, 3, 2, 13, 12, 9, 8, 5, 4, 1, 0, 15, 14, 11, 10, 7, 6, 3, 2, 13, 12, 9, 8, 5, 4, 1, 0 )); x = _mm256_permute4x64_epi64(x, 0xd8); x2 = _mm256_permute4x64_epi64(x2, 0xd8); _mm256_storeu_si256((__m256i *) writing, _mm256_permute2f128_si256(x, x2, 0x31)); _mm256_storeu_si256((__m256i *) out, _mm256_permute2f128_si256(x, x2, 0x20)); reading += 32; writing += 16; out += 32; } R[107] = R[214]; for (i = 0; i < 53; ++i) { r0 = R[2 * i]; r1 = R[2 * i + 1]; r2 = r0 + r1 * (uint32)65; R[i] = r2; } r0 = R[106]; r1 = R[107]; r2 = r0 + r1 * (uint32)65; *out++ = r2; r2 >>= 8; R[53] = r2; reading = (uint16 *) R; writing = R; i = 2; while (i > 0) { __m256i x, x2, y, y2; --i; if (!i) { reading -= 12; writing -= 6; out -= 12; } x = _mm256_loadu_si256((__m256i *) (reading + 0)); x2 = _mm256_loadu_si256((__m256i *) (reading + 16)); y = x & _mm256_set1_epi32(65535); y2 = x2 & _mm256_set1_epi32(65535); x = _mm256_srli_epi32(x, 16); x2 = _mm256_srli_epi32(x2, 16); x = _mm256_mullo_epi32(x, _mm256_set1_epi32(4225)); x2 = _mm256_mullo_epi32(x2, _mm256_set1_epi32(4225)); x = _mm256_add_epi32(y, x); x2 = _mm256_add_epi32(y2, x2); x = _mm256_shuffle_epi8(x, _mm256_set_epi8( 15, 14, 11, 10, 7, 6, 3, 2, 13, 12, 9, 8, 5, 4, 1, 0, 15, 14, 11, 10, 7, 6, 3, 2, 13, 12, 9, 8, 5, 4, 1, 0 )); x2 = _mm256_shuffle_epi8(x2, _mm256_set_epi8( 15, 14, 11, 10, 7, 6, 3, 2, 13, 12, 9, 8, 5, 4, 1, 0, 15, 14, 11, 10, 7, 6, 3, 2, 13, 12, 9, 8, 5, 4, 1, 0 )); x = _mm256_permute4x64_epi64(x, 0xd8); x2 = _mm256_permute4x64_epi64(x2, 0xd8); _mm256_storeu_si256((__m256i *) writing, _mm256_permute2f128_si256(x, x2, 0x31)); _mm256_storeu_si256((__m256i *) out, _mm256_permute2f128_si256(x, x2, 0x20)); reading += 32; writing += 16; out += 32; } r0 = R[52]; r1 = R[53]; r2 = r0 + r1 * (uint32)4225; *out++ = r2; r2 >>= 8; R[26] = r2; reading = (uint16 *) R; writing = R; i = 2; while (i > 0) { __m256i x, y; --i; if (!i) { reading -= 6; writing -= 3; out -= 3; } x = _mm256_loadu_si256((__m256i *) reading); y = x & _mm256_set1_epi32(65535); x = _mm256_srli_epi32(x, 16); x = _mm256_mullo_epi32(x, _mm256_set1_epi32(273)); x = _mm256_add_epi32(y, x); x = _mm256_shuffle_epi8(x, _mm256_set_epi8( 12, 8, 4, 0, 12, 8, 4, 0, 14, 13, 10, 9, 6, 5, 2, 1, 12, 8, 4, 0, 12, 8, 4, 0, 14, 13, 10, 9, 6, 5, 2, 1 )); x = _mm256_permute4x64_epi64(x, 0xd8); _mm_storeu_si128((__m128i *) writing, _mm256_extractf128_si256(x, 0)); s0 = _mm256_extract_epi32(x, 4); *out++ = s0; s0 >>= 8; *out++ = s0; s0 >>= 8; *out++ = s0; s0 >>= 8; *out++ = s0; s0 = _mm256_extract_epi32(x, 6); *out++ = s0; s0 >>= 8; *out++ = s0; s0 >>= 8; *out++ = s0; s0 >>= 8; *out++ = s0; reading += 16; writing += 8; } R[13] = R[26]; for (i = 0; i < 7; ++i) { r0 = R[2 * i]; r1 = R[2 * i + 1]; r2 = r0 + r1 * (uint32)292; *out++ = r2; r2 >>= 8; R[i] = r2; } for (i = 0; i < 3; ++i) { r0 = R[2 * i]; r1 = R[2 * i + 1]; r2 = r0 + r1 * (uint32)334; *out++ = r2; r2 >>= 8; R[i] = r2; } R[3] = R[6]; for (i = 0; i < 2; ++i) { r0 = R[2 * i]; r1 = R[2 * i + 1]; r2 = r0 + r1 * (uint32)436; *out++ = r2; r2 >>= 8; R[i] = r2; } r0 = R[0]; r1 = R[1]; r2 = r0 + r1 * (uint32)743; *out++ = r2; r2 >>= 8; *out++ = r2; r2 >>= 8; R[0] = r2; r0 = R[0]; *out++ = r0; /*clang-analyzer-deadcode.DeadStores*/ /*r0 >>= 8;*/ }