mirror of
https://github.com/henrydcase/pqc.git
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70543bba37
Exported from SUPERCOP-20200826 using the scripts at: https://github.com/jschanck/pqclean-package-ntruprime
89 lines
2.2 KiB
C
89 lines
2.2 KiB
C
#include "crypto_encode_256x2.h"
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#include <immintrin.h>
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#include <stdint.h>
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void PQCLEAN_NTRULPR653_AVX2_crypto_encode_256x2(unsigned char *s, const void *v) {
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__m256i a0 = _mm256_loadu_si256(0 + (__m256i *) v);
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__m256i a1 = _mm256_loadu_si256(1 + (__m256i *) v);
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__m256i a2 = _mm256_loadu_si256(2 + (__m256i *) v);
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__m256i a3 = _mm256_loadu_si256(3 + (__m256i *) v);
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__m256i a4 = _mm256_loadu_si256(4 + (__m256i *) v);
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__m256i a5 = _mm256_loadu_si256(5 + (__m256i *) v);
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__m256i a6 = _mm256_loadu_si256(6 + (__m256i *) v);
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__m256i a7 = _mm256_loadu_si256(7 + (__m256i *) v);
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__m256i bottom = _mm256_set1_epi8(1);
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__m256i zero = _mm256_setzero_si256();
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__m256i b0 = _mm256_cmpgt_epi8(a0 & bottom, zero);
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__m256i b1 = _mm256_cmpgt_epi8(a1 & bottom, zero);
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__m256i b2 = _mm256_cmpgt_epi8(a2 & bottom, zero);
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__m256i b3 = _mm256_cmpgt_epi8(a3 & bottom, zero);
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__m256i b4 = _mm256_cmpgt_epi8(a4 & bottom, zero);
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__m256i b5 = _mm256_cmpgt_epi8(a5 & bottom, zero);
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__m256i b6 = _mm256_cmpgt_epi8(a6 & bottom, zero);
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__m256i b7 = _mm256_cmpgt_epi8(a7 & bottom, zero);
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int32_t c0 = _mm256_movemask_epi8(b0);
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int32_t c1 = _mm256_movemask_epi8(b1);
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int32_t c2 = _mm256_movemask_epi8(b2);
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int32_t c3 = _mm256_movemask_epi8(b3);
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int32_t c4 = _mm256_movemask_epi8(b4);
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int32_t c5 = _mm256_movemask_epi8(b5);
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int32_t c6 = _mm256_movemask_epi8(b6);
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int32_t c7 = _mm256_movemask_epi8(b7);
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*s++ = c0;
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c0 >>= 8;
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*s++ = c0;
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c0 >>= 8;
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*s++ = c0;
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c0 >>= 8;
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*s++ = c0;
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*s++ = c1;
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c1 >>= 8;
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*s++ = c1;
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c1 >>= 8;
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*s++ = c1;
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c1 >>= 8;
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*s++ = c1;
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*s++ = c2;
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c2 >>= 8;
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*s++ = c2;
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c2 >>= 8;
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*s++ = c2;
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c2 >>= 8;
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*s++ = c2;
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*s++ = c3;
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c3 >>= 8;
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*s++ = c3;
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c3 >>= 8;
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*s++ = c3;
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c3 >>= 8;
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*s++ = c3;
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*s++ = c4;
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c4 >>= 8;
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*s++ = c4;
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c4 >>= 8;
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*s++ = c4;
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c4 >>= 8;
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*s++ = c4;
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*s++ = c5;
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c5 >>= 8;
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*s++ = c5;
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c5 >>= 8;
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*s++ = c5;
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c5 >>= 8;
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*s++ = c5;
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*s++ = c6;
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c6 >>= 8;
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*s++ = c6;
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c6 >>= 8;
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*s++ = c6;
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c6 >>= 8;
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*s++ = c6;
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*s++ = c7;
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c7 >>= 8;
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*s++ = c7;
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c7 >>= 8;
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*s++ = c7;
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c7 >>= 8;
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*s++ = c7;
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}
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