286 lines
9.5 KiB
C
286 lines
9.5 KiB
C
#include "crypto_encode_857x1723round.h"
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#include <immintrin.h>
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/* auto-generated; do not edit */
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#define int16 int16_t
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#define uint16 uint16_t
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#define uint32 uint32_t
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void PQCLEAN_SNTRUP857_AVX2_crypto_encode_857x1723round(unsigned char *out, const void *v) {
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const int16 *R0 = v;
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/* XXX: caller could overlap R with input */
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uint16 R[429];
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long i;
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const uint16 *reading;
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uint16 *writing;
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uint16 r0, r1;
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uint32 r2;
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uint32 s0;
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reading = (uint16 *) R0;
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writing = R;
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i = 54;
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while (i > 0) {
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__m256i x, y;
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--i;
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if (!i) {
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reading -= 8;
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writing -= 4;
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out -= 4;
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}
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x = _mm256_loadu_si256((__m256i *) reading);
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x = _mm256_mulhrs_epi16(x, _mm256_set1_epi16(10923));
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x = _mm256_add_epi16(x, _mm256_add_epi16(x, x));
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x = _mm256_add_epi16(x, _mm256_set1_epi16(2583));
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x &= _mm256_set1_epi16(16383);
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x = _mm256_mulhi_epi16(x, _mm256_set1_epi16(21846));
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y = x & _mm256_set1_epi32(65535);
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x = _mm256_srli_epi32(x, 16);
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x = _mm256_mullo_epi32(x, _mm256_set1_epi32(1723));
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x = _mm256_add_epi32(y, x);
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x = _mm256_shuffle_epi8(x, _mm256_set_epi8(
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12, 8, 4, 0, 12, 8, 4, 0, 14, 13, 10, 9, 6, 5, 2, 1,
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12, 8, 4, 0, 12, 8, 4, 0, 14, 13, 10, 9, 6, 5, 2, 1
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));
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x = _mm256_permute4x64_epi64(x, 0xd8);
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_mm_storeu_si128((__m128i *) writing, _mm256_extractf128_si256(x, 0));
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s0 = (uint32) _mm256_extract_epi32(x, 4);
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*out++ = (unsigned char) s0;
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s0 >>= 8;
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*out++ = (unsigned char) s0;
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s0 >>= 8;
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*out++ = (unsigned char) s0;
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s0 >>= 8;
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*out++ = (unsigned char) s0;
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s0 = (uint32) _mm256_extract_epi32(x, 6);
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*out++ = (unsigned char) s0;
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s0 >>= 8;
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*out++ = (unsigned char) s0;
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s0 >>= 8;
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*out++ = (unsigned char) s0;
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s0 >>= 8;
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*out++ = (unsigned char) s0;
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reading += 16;
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writing += 8;
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}
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R[428] = (uint16) ((((3 * ((10923 * R0[856] + 16384) >> 15) + 2583) & 16383) * 10923) >> 15);
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reading = (uint16 *) R;
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writing = R;
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i = 14;
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while (i > 0) {
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__m256i x, x2, y, y2;
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--i;
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if (!i) {
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reading -= 20;
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writing -= 10;
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out -= 20;
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}
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x = _mm256_loadu_si256((__m256i *) (reading + 0));
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x2 = _mm256_loadu_si256((__m256i *) (reading + 16));
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y = x & _mm256_set1_epi32(65535);
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y2 = x2 & _mm256_set1_epi32(65535);
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x = _mm256_srli_epi32(x, 16);
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x2 = _mm256_srli_epi32(x2, 16);
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x = _mm256_mullo_epi32(x, _mm256_set1_epi32(11597));
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x2 = _mm256_mullo_epi32(x2, _mm256_set1_epi32(11597));
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x = _mm256_add_epi32(y, x);
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x2 = _mm256_add_epi32(y2, x2);
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x = _mm256_shuffle_epi8(x, _mm256_set_epi8(
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15, 14, 11, 10, 7, 6, 3, 2, 13, 12, 9, 8, 5, 4, 1, 0,
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15, 14, 11, 10, 7, 6, 3, 2, 13, 12, 9, 8, 5, 4, 1, 0
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));
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x2 = _mm256_shuffle_epi8(x2, _mm256_set_epi8(
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15, 14, 11, 10, 7, 6, 3, 2, 13, 12, 9, 8, 5, 4, 1, 0,
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15, 14, 11, 10, 7, 6, 3, 2, 13, 12, 9, 8, 5, 4, 1, 0
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));
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x = _mm256_permute4x64_epi64(x, 0xd8);
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x2 = _mm256_permute4x64_epi64(x2, 0xd8);
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_mm256_storeu_si256((__m256i *) writing, _mm256_permute2f128_si256(x, x2, 0x31));
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_mm256_storeu_si256((__m256i *) out, _mm256_permute2f128_si256(x, x2, 0x20));
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reading += 32;
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writing += 16;
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out += 32;
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}
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R[214] = R[428];
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reading = (uint16 *) R;
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writing = R;
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i = 7;
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while (i > 0) {
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__m256i x, x2, y, y2;
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--i;
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if (!i) {
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reading -= 10;
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writing -= 5;
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out -= 10;
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}
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x = _mm256_loadu_si256((__m256i *) (reading + 0));
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x2 = _mm256_loadu_si256((__m256i *) (reading + 16));
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y = x & _mm256_set1_epi32(65535);
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y2 = x2 & _mm256_set1_epi32(65535);
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x = _mm256_srli_epi32(x, 16);
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x2 = _mm256_srli_epi32(x2, 16);
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x = _mm256_mullo_epi32(x, _mm256_set1_epi32(2053));
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x2 = _mm256_mullo_epi32(x2, _mm256_set1_epi32(2053));
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x = _mm256_add_epi32(y, x);
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x2 = _mm256_add_epi32(y2, x2);
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x = _mm256_shuffle_epi8(x, _mm256_set_epi8(
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15, 14, 11, 10, 7, 6, 3, 2, 13, 12, 9, 8, 5, 4, 1, 0,
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15, 14, 11, 10, 7, 6, 3, 2, 13, 12, 9, 8, 5, 4, 1, 0
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));
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x2 = _mm256_shuffle_epi8(x2, _mm256_set_epi8(
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15, 14, 11, 10, 7, 6, 3, 2, 13, 12, 9, 8, 5, 4, 1, 0,
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15, 14, 11, 10, 7, 6, 3, 2, 13, 12, 9, 8, 5, 4, 1, 0
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));
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x = _mm256_permute4x64_epi64(x, 0xd8);
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x2 = _mm256_permute4x64_epi64(x2, 0xd8);
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_mm256_storeu_si256((__m256i *) writing, _mm256_permute2f128_si256(x, x2, 0x31));
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_mm256_storeu_si256((__m256i *) out, _mm256_permute2f128_si256(x, x2, 0x20));
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reading += 32;
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writing += 16;
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out += 32;
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}
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R[107] = R[214];
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for (i = 0; i < 53; ++i) {
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r0 = R[2 * i];
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r1 = R[2 * i + 1];
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r2 = r0 + r1 * (uint32)65;
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R[i] = (uint16) r2;
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}
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r0 = R[106];
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r1 = R[107];
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r2 = r0 + r1 * (uint32)65;
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*out++ = (unsigned char) r2;
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r2 >>= 8;
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R[53] = (uint16) r2;
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reading = (uint16 *) R;
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writing = R;
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i = 2;
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while (i > 0) {
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__m256i x, x2, y, y2;
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--i;
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if (!i) {
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reading -= 12;
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writing -= 6;
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out -= 12;
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}
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x = _mm256_loadu_si256((__m256i *) (reading + 0));
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x2 = _mm256_loadu_si256((__m256i *) (reading + 16));
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y = x & _mm256_set1_epi32(65535);
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y2 = x2 & _mm256_set1_epi32(65535);
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x = _mm256_srli_epi32(x, 16);
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x2 = _mm256_srli_epi32(x2, 16);
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x = _mm256_mullo_epi32(x, _mm256_set1_epi32(4225));
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x2 = _mm256_mullo_epi32(x2, _mm256_set1_epi32(4225));
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x = _mm256_add_epi32(y, x);
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x2 = _mm256_add_epi32(y2, x2);
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x = _mm256_shuffle_epi8(x, _mm256_set_epi8(
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15, 14, 11, 10, 7, 6, 3, 2, 13, 12, 9, 8, 5, 4, 1, 0,
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15, 14, 11, 10, 7, 6, 3, 2, 13, 12, 9, 8, 5, 4, 1, 0
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));
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x2 = _mm256_shuffle_epi8(x2, _mm256_set_epi8(
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15, 14, 11, 10, 7, 6, 3, 2, 13, 12, 9, 8, 5, 4, 1, 0,
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15, 14, 11, 10, 7, 6, 3, 2, 13, 12, 9, 8, 5, 4, 1, 0
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));
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x = _mm256_permute4x64_epi64(x, 0xd8);
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x2 = _mm256_permute4x64_epi64(x2, 0xd8);
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_mm256_storeu_si256((__m256i *) writing, _mm256_permute2f128_si256(x, x2, 0x31));
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_mm256_storeu_si256((__m256i *) out, _mm256_permute2f128_si256(x, x2, 0x20));
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reading += 32;
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writing += 16;
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out += 32;
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}
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r0 = R[52];
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r1 = R[53];
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r2 = r0 + r1 * (uint32)4225;
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*out++ = (unsigned char) r2;
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r2 >>= 8;
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R[26] = (uint16) r2;
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reading = (uint16 *) R;
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writing = R;
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i = 2;
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while (i > 0) {
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__m256i x, y;
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--i;
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if (!i) {
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reading -= 6;
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writing -= 3;
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out -= 3;
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}
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x = _mm256_loadu_si256((__m256i *) reading);
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y = x & _mm256_set1_epi32(65535);
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x = _mm256_srli_epi32(x, 16);
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x = _mm256_mullo_epi32(x, _mm256_set1_epi32(273));
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x = _mm256_add_epi32(y, x);
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x = _mm256_shuffle_epi8(x, _mm256_set_epi8(
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12, 8, 4, 0, 12, 8, 4, 0, 14, 13, 10, 9, 6, 5, 2, 1,
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12, 8, 4, 0, 12, 8, 4, 0, 14, 13, 10, 9, 6, 5, 2, 1
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));
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x = _mm256_permute4x64_epi64(x, 0xd8);
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_mm_storeu_si128((__m128i *) writing, _mm256_extractf128_si256(x, 0));
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s0 = (uint32) _mm256_extract_epi32(x, 4);
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*out++ = (unsigned char) s0;
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s0 >>= 8;
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*out++ = (unsigned char) s0;
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s0 >>= 8;
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*out++ = (unsigned char) s0;
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s0 >>= 8;
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*out++ = (unsigned char) s0;
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s0 = (uint32) _mm256_extract_epi32(x, 6);
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*out++ = (unsigned char) s0;
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s0 >>= 8;
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*out++ = (unsigned char) s0;
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s0 >>= 8;
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*out++ = (unsigned char) s0;
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s0 >>= 8;
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*out++ = (unsigned char) s0;
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reading += 16;
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writing += 8;
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}
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R[13] = R[26];
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for (i = 0; i < 7; ++i) {
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r0 = R[2 * i];
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r1 = R[2 * i + 1];
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r2 = r0 + r1 * (uint32)292;
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*out++ = (unsigned char) r2;
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r2 >>= 8;
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R[i] = (uint16) r2;
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}
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for (i = 0; i < 3; ++i) {
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r0 = R[2 * i];
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r1 = R[2 * i + 1];
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r2 = r0 + r1 * (uint32)334;
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*out++ = (unsigned char) r2;
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r2 >>= 8;
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R[i] = (uint16) r2;
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}
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R[3] = R[6];
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for (i = 0; i < 2; ++i) {
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r0 = R[2 * i];
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r1 = R[2 * i + 1];
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r2 = r0 + r1 * (uint32)436;
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*out++ = (unsigned char) r2;
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r2 >>= 8;
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R[i] = (uint16) r2;
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}
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r0 = R[0];
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r1 = R[1];
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r2 = r0 + r1 * (uint32)743;
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*out++ = (unsigned char) r2;
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r2 >>= 8;
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*out++ = (unsigned char) r2;
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r2 >>= 8;
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R[0] = (uint16) r2;
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r0 = R[0];
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*out++ = (unsigned char) r0;
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}
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