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Remove unused code

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This commit is contained in:
Frank Denis 2020-05-14 18:45:56 +02:00
parent 2952a15bfe
commit 5a300d6480
1 changed files with 0 additions and 31 deletions
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src/libsodium/crypto_stream/chacha20/dolbeau/u8.h
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@ -2,21 +2,6 @@
#define VEC8_ROT(A, IMM) \
_mm256_or_si256(_mm256_slli_epi32(A, IMM), _mm256_srli_epi32(A, (32 - IMM)))
/* implements a vector quarter round by-the-book (naive!) */
#define VEC8_QUARTERROUND_NAIVE(A, B, C, D) \
x_##A = _mm256_add_epi32(x_##A, x_##B); \
t_##A = _mm256_xor_si256(x_##D, x_##A); \
x_##D = VEC8_ROT(t_##A, 16); \
x_##C = _mm256_add_epi32(x_##C, x_##D); \
t_##C = _mm256_xor_si256(x_##B, x_##C); \
x_##B = VEC8_ROT(t_##C, 12); \
x_##A = _mm256_add_epi32(x_##A, x_##B); \
t_##A = _mm256_xor_si256(x_##D, x_##A); \
x_##D = VEC8_ROT(t_##A, 8); \
x_##C = _mm256_add_epi32(x_##C, x_##D); \
t_##C = _mm256_xor_si256(x_##B, x_##C); \
x_##B = VEC8_ROT(t_##C, 7)
/* same, but replace 2 of the shift/shift/or "rotation" by byte shuffles (8 &
* 16) (better) */
#define VEC8_QUARTERROUND_SHUFFLE(A, B, C, D) \
@ -33,22 +18,6 @@
t_##C = _mm256_xor_si256(x_##B, x_##C); \
x_##B = VEC8_ROT(t_##C, 7)
/* same, but replace 2 of the shift/shift/or "rotation" by byte & word shuffles
* (8 & 16) (not as good as previous) */
#define VEC8_QUARTERROUND_SHUFFLE2(A, B, C, D) \
x_##A = _mm256_add_epi32(x_##A, x_##B); \
t_##A = _mm256_xor_si256(x_##D, x_##A); \
x_##D = _mm256_shufflehi_epi16(_mm256_shufflelo_epi16(t_##A, 0xb1), 0xb1); \
x_##C = _mm256_add_epi32(x_##C, x_##D); \
t_##C = _mm256_xor_si256(x_##B, x_##C); \
x_##B = VEC8_ROT(t_##C, 12); \
x_##A = _mm256_add_epi32(x_##A, x_##B); \
t_##A = _mm256_xor_si256(x_##D, x_##A); \
x_##D = _mm256_shuffle_epi8(t_##A, rot8); \
x_##C = _mm256_add_epi32(x_##C, x_##D); \
t_##C = _mm256_xor_si256(x_##B, x_##C); \
x_##B = VEC8_ROT(t_##C, 7)
#define VEC8_QUARTERROUND(A, B, C, D) VEC8_QUARTERROUND_SHUFFLE(A, B, C, D)
#define VEC8_LINE1(A, B, C, D) \