lokinet/crypto/salsa20/xmm6int/u8.h
2019-09-03 08:02:35 -05:00

472 lines
16 KiB
C

if(bytes >= 512)
{
__m256i y0, y1, y2, y3, y4, y5, y6, y7, y8, y9, y10, y11, y12, y13, y14, y15;
/* the naive way seems as fast (if not a bit faster) than the vector way */
__m256i z0 = _mm256_set1_epi32(x[0]);
__m256i z5 = _mm256_set1_epi32(x[1]);
__m256i z10 = _mm256_set1_epi32(x[2]);
__m256i z15 = _mm256_set1_epi32(x[3]);
__m256i z12 = _mm256_set1_epi32(x[4]);
__m256i z1 = _mm256_set1_epi32(x[5]);
__m256i z6 = _mm256_set1_epi32(x[6]);
__m256i z11 = _mm256_set1_epi32(x[7]);
__m256i z8; /* useless */
__m256i z13 = _mm256_set1_epi32(x[9]);
__m256i z2 = _mm256_set1_epi32(x[10]);
__m256i z7 = _mm256_set1_epi32(x[11]);
__m256i z4 = _mm256_set1_epi32(x[12]);
__m256i z9; /* useless */
__m256i z14 = _mm256_set1_epi32(x[14]);
__m256i z3 = _mm256_set1_epi32(x[15]);
__m256i orig0 = z0;
__m256i orig1 = z1;
__m256i orig2 = z2;
__m256i orig3 = z3;
__m256i orig4 = z4;
__m256i orig5 = z5;
__m256i orig6 = z6;
__m256i orig7 = z7;
__m256i orig8;
__m256i orig9;
__m256i orig10 = z10;
__m256i orig11 = z11;
__m256i orig12 = z12;
__m256i orig13 = z13;
__m256i orig14 = z14;
__m256i orig15 = z15;
uint32_t in8;
uint32_t in9;
int i;
while(bytes >= 512)
{
/* vector implementation for z8 and z9 */
/* faster than the naive version for 8 blocks */
const __m256i addv8 = _mm256_set_epi64x(3, 2, 1, 0);
const __m256i addv9 = _mm256_set_epi64x(7, 6, 5, 4);
const __m256i permute = _mm256_set_epi32(7, 6, 3, 2, 5, 4, 1, 0);
__m256i t8, t9;
uint64_t in89;
in8 = x[8];
in9 = x[13]; /* see arrays above for the address translation */
in89 = ((uint64_t)in8) | (((uint64_t)in9) << 32);
z8 = z9 = _mm256_broadcastq_epi64(_mm_cvtsi64_si128(in89));
t8 = _mm256_add_epi64(addv8, z8);
t9 = _mm256_add_epi64(addv9, z9);
z8 = _mm256_unpacklo_epi32(t8, t9);
z9 = _mm256_unpackhi_epi32(t8, t9);
t8 = _mm256_unpacklo_epi32(z8, z9);
t9 = _mm256_unpackhi_epi32(z8, z9);
/* required because unpack* are intra-lane */
z8 = _mm256_permutevar8x32_epi32(t8, permute);
z9 = _mm256_permutevar8x32_epi32(t9, permute);
orig8 = z8;
orig9 = z9;
in89 += 8;
x[8] = in89 & 0xFFFFFFFF;
x[13] = (in89 >> 32) & 0xFFFFFFFF;
z5 = orig5;
z10 = orig10;
z15 = orig15;
z14 = orig14;
z3 = orig3;
z6 = orig6;
z11 = orig11;
z1 = orig1;
z7 = orig7;
z13 = orig13;
z2 = orig2;
z9 = orig9;
z0 = orig0;
z12 = orig12;
z4 = orig4;
z8 = orig8;
for(i = 0; i < ROUNDS; i += 2)
{
/* the inner loop is a direct translation (regexp search/replace)
* from the amd64-xmm6 ASM */
__m256i r0, r1, r2, r3, r4, r5, r6, r7, r8, r9, r10, r11, r12, r13, r14,
r15;
y4 = z12;
y4 = _mm256_add_epi32(y4, z0);
r4 = y4;
y4 = _mm256_slli_epi32(y4, 7);
z4 = _mm256_xor_si256(z4, y4);
r4 = _mm256_srli_epi32(r4, 25);
z4 = _mm256_xor_si256(z4, r4);
y9 = z1;
y9 = _mm256_add_epi32(y9, z5);
r9 = y9;
y9 = _mm256_slli_epi32(y9, 7);
z9 = _mm256_xor_si256(z9, y9);
r9 = _mm256_srli_epi32(r9, 25);
z9 = _mm256_xor_si256(z9, r9);
y8 = z0;
y8 = _mm256_add_epi32(y8, z4);
r8 = y8;
y8 = _mm256_slli_epi32(y8, 9);
z8 = _mm256_xor_si256(z8, y8);
r8 = _mm256_srli_epi32(r8, 23);
z8 = _mm256_xor_si256(z8, r8);
y13 = z5;
y13 = _mm256_add_epi32(y13, z9);
r13 = y13;
y13 = _mm256_slli_epi32(y13, 9);
z13 = _mm256_xor_si256(z13, y13);
r13 = _mm256_srli_epi32(r13, 23);
z13 = _mm256_xor_si256(z13, r13);
y12 = z4;
y12 = _mm256_add_epi32(y12, z8);
r12 = y12;
y12 = _mm256_slli_epi32(y12, 13);
z12 = _mm256_xor_si256(z12, y12);
r12 = _mm256_srli_epi32(r12, 19);
z12 = _mm256_xor_si256(z12, r12);
y1 = z9;
y1 = _mm256_add_epi32(y1, z13);
r1 = y1;
y1 = _mm256_slli_epi32(y1, 13);
z1 = _mm256_xor_si256(z1, y1);
r1 = _mm256_srli_epi32(r1, 19);
z1 = _mm256_xor_si256(z1, r1);
y0 = z8;
y0 = _mm256_add_epi32(y0, z12);
r0 = y0;
y0 = _mm256_slli_epi32(y0, 18);
z0 = _mm256_xor_si256(z0, y0);
r0 = _mm256_srli_epi32(r0, 14);
z0 = _mm256_xor_si256(z0, r0);
y5 = z13;
y5 = _mm256_add_epi32(y5, z1);
r5 = y5;
y5 = _mm256_slli_epi32(y5, 18);
z5 = _mm256_xor_si256(z5, y5);
r5 = _mm256_srli_epi32(r5, 14);
z5 = _mm256_xor_si256(z5, r5);
y14 = z6;
y14 = _mm256_add_epi32(y14, z10);
r14 = y14;
y14 = _mm256_slli_epi32(y14, 7);
z14 = _mm256_xor_si256(z14, y14);
r14 = _mm256_srli_epi32(r14, 25);
z14 = _mm256_xor_si256(z14, r14);
y3 = z11;
y3 = _mm256_add_epi32(y3, z15);
r3 = y3;
y3 = _mm256_slli_epi32(y3, 7);
z3 = _mm256_xor_si256(z3, y3);
r3 = _mm256_srli_epi32(r3, 25);
z3 = _mm256_xor_si256(z3, r3);
y2 = z10;
y2 = _mm256_add_epi32(y2, z14);
r2 = y2;
y2 = _mm256_slli_epi32(y2, 9);
z2 = _mm256_xor_si256(z2, y2);
r2 = _mm256_srli_epi32(r2, 23);
z2 = _mm256_xor_si256(z2, r2);
y7 = z15;
y7 = _mm256_add_epi32(y7, z3);
r7 = y7;
y7 = _mm256_slli_epi32(y7, 9);
z7 = _mm256_xor_si256(z7, y7);
r7 = _mm256_srli_epi32(r7, 23);
z7 = _mm256_xor_si256(z7, r7);
y6 = z14;
y6 = _mm256_add_epi32(y6, z2);
r6 = y6;
y6 = _mm256_slli_epi32(y6, 13);
z6 = _mm256_xor_si256(z6, y6);
r6 = _mm256_srli_epi32(r6, 19);
z6 = _mm256_xor_si256(z6, r6);
y11 = z3;
y11 = _mm256_add_epi32(y11, z7);
r11 = y11;
y11 = _mm256_slli_epi32(y11, 13);
z11 = _mm256_xor_si256(z11, y11);
r11 = _mm256_srli_epi32(r11, 19);
z11 = _mm256_xor_si256(z11, r11);
y10 = z2;
y10 = _mm256_add_epi32(y10, z6);
r10 = y10;
y10 = _mm256_slli_epi32(y10, 18);
z10 = _mm256_xor_si256(z10, y10);
r10 = _mm256_srli_epi32(r10, 14);
z10 = _mm256_xor_si256(z10, r10);
y1 = z3;
y1 = _mm256_add_epi32(y1, z0);
r1 = y1;
y1 = _mm256_slli_epi32(y1, 7);
z1 = _mm256_xor_si256(z1, y1);
r1 = _mm256_srli_epi32(r1, 25);
z1 = _mm256_xor_si256(z1, r1);
y15 = z7;
y15 = _mm256_add_epi32(y15, z11);
r15 = y15;
y15 = _mm256_slli_epi32(y15, 18);
z15 = _mm256_xor_si256(z15, y15);
r15 = _mm256_srli_epi32(r15, 14);
z15 = _mm256_xor_si256(z15, r15);
y6 = z4;
y6 = _mm256_add_epi32(y6, z5);
r6 = y6;
y6 = _mm256_slli_epi32(y6, 7);
z6 = _mm256_xor_si256(z6, y6);
r6 = _mm256_srli_epi32(r6, 25);
z6 = _mm256_xor_si256(z6, r6);
y2 = z0;
y2 = _mm256_add_epi32(y2, z1);
r2 = y2;
y2 = _mm256_slli_epi32(y2, 9);
z2 = _mm256_xor_si256(z2, y2);
r2 = _mm256_srli_epi32(r2, 23);
z2 = _mm256_xor_si256(z2, r2);
y7 = z5;
y7 = _mm256_add_epi32(y7, z6);
r7 = y7;
y7 = _mm256_slli_epi32(y7, 9);
z7 = _mm256_xor_si256(z7, y7);
r7 = _mm256_srli_epi32(r7, 23);
z7 = _mm256_xor_si256(z7, r7);
y3 = z1;
y3 = _mm256_add_epi32(y3, z2);
r3 = y3;
y3 = _mm256_slli_epi32(y3, 13);
z3 = _mm256_xor_si256(z3, y3);
r3 = _mm256_srli_epi32(r3, 19);
z3 = _mm256_xor_si256(z3, r3);
y4 = z6;
y4 = _mm256_add_epi32(y4, z7);
r4 = y4;
y4 = _mm256_slli_epi32(y4, 13);
z4 = _mm256_xor_si256(z4, y4);
r4 = _mm256_srli_epi32(r4, 19);
z4 = _mm256_xor_si256(z4, r4);
y0 = z2;
y0 = _mm256_add_epi32(y0, z3);
r0 = y0;
y0 = _mm256_slli_epi32(y0, 18);
z0 = _mm256_xor_si256(z0, y0);
r0 = _mm256_srli_epi32(r0, 14);
z0 = _mm256_xor_si256(z0, r0);
y5 = z7;
y5 = _mm256_add_epi32(y5, z4);
r5 = y5;
y5 = _mm256_slli_epi32(y5, 18);
z5 = _mm256_xor_si256(z5, y5);
r5 = _mm256_srli_epi32(r5, 14);
z5 = _mm256_xor_si256(z5, r5);
y11 = z9;
y11 = _mm256_add_epi32(y11, z10);
r11 = y11;
y11 = _mm256_slli_epi32(y11, 7);
z11 = _mm256_xor_si256(z11, y11);
r11 = _mm256_srli_epi32(r11, 25);
z11 = _mm256_xor_si256(z11, r11);
y12 = z14;
y12 = _mm256_add_epi32(y12, z15);
r12 = y12;
y12 = _mm256_slli_epi32(y12, 7);
z12 = _mm256_xor_si256(z12, y12);
r12 = _mm256_srli_epi32(r12, 25);
z12 = _mm256_xor_si256(z12, r12);
y8 = z10;
y8 = _mm256_add_epi32(y8, z11);
r8 = y8;
y8 = _mm256_slli_epi32(y8, 9);
z8 = _mm256_xor_si256(z8, y8);
r8 = _mm256_srli_epi32(r8, 23);
z8 = _mm256_xor_si256(z8, r8);
y13 = z15;
y13 = _mm256_add_epi32(y13, z12);
r13 = y13;
y13 = _mm256_slli_epi32(y13, 9);
z13 = _mm256_xor_si256(z13, y13);
r13 = _mm256_srli_epi32(r13, 23);
z13 = _mm256_xor_si256(z13, r13);
y9 = z11;
y9 = _mm256_add_epi32(y9, z8);
r9 = y9;
y9 = _mm256_slli_epi32(y9, 13);
z9 = _mm256_xor_si256(z9, y9);
r9 = _mm256_srli_epi32(r9, 19);
z9 = _mm256_xor_si256(z9, r9);
y14 = z12;
y14 = _mm256_add_epi32(y14, z13);
r14 = y14;
y14 = _mm256_slli_epi32(y14, 13);
z14 = _mm256_xor_si256(z14, y14);
r14 = _mm256_srli_epi32(r14, 19);
z14 = _mm256_xor_si256(z14, r14);
y10 = z8;
y10 = _mm256_add_epi32(y10, z9);
r10 = y10;
y10 = _mm256_slli_epi32(y10, 18);
z10 = _mm256_xor_si256(z10, y10);
r10 = _mm256_srli_epi32(r10, 14);
z10 = _mm256_xor_si256(z10, r10);
y15 = z13;
y15 = _mm256_add_epi32(y15, z14);
r15 = y15;
y15 = _mm256_slli_epi32(y15, 18);
z15 = _mm256_xor_si256(z15, y15);
r15 = _mm256_srli_epi32(r15, 14);
z15 = _mm256_xor_si256(z15, r15);
}
/* store data ; this macro first transpose data in-registers, and then store
* them in memory. much faster with icc. */
#define ONEQUAD_TRANSPOSE(A, B, C, D) \
{ \
__m128i t0, t1, t2, t3; \
z##A = _mm256_add_epi32(z##A, orig##A); \
z##B = _mm256_add_epi32(z##B, orig##B); \
z##C = _mm256_add_epi32(z##C, orig##C); \
z##D = _mm256_add_epi32(z##D, orig##D); \
y##A = _mm256_unpacklo_epi32(z##A, z##B); \
y##B = _mm256_unpacklo_epi32(z##C, z##D); \
y##C = _mm256_unpackhi_epi32(z##A, z##B); \
y##D = _mm256_unpackhi_epi32(z##C, z##D); \
z##A = _mm256_unpacklo_epi64(y##A, y##B); \
z##B = _mm256_unpackhi_epi64(y##A, y##B); \
z##C = _mm256_unpacklo_epi64(y##C, y##D); \
z##D = _mm256_unpackhi_epi64(y##C, y##D); \
t0 = _mm_xor_si128(_mm256_extracti128_si256(z##A, 0), \
_mm_loadu_si128((__m128i*)(m + 0))); \
_mm_storeu_si128((__m128i*)(c + 0), t0); \
t1 = _mm_xor_si128(_mm256_extracti128_si256(z##B, 0), \
_mm_loadu_si128((__m128i*)(m + 64))); \
_mm_storeu_si128((__m128i*)(c + 64), t1); \
t2 = _mm_xor_si128(_mm256_extracti128_si256(z##C, 0), \
_mm_loadu_si128((__m128i*)(m + 128))); \
_mm_storeu_si128((__m128i*)(c + 128), t2); \
t3 = _mm_xor_si128(_mm256_extracti128_si256(z##D, 0), \
_mm_loadu_si128((__m128i*)(m + 192))); \
_mm_storeu_si128((__m128i*)(c + 192), t3); \
t0 = _mm_xor_si128(_mm256_extracti128_si256(z##A, 1), \
_mm_loadu_si128((__m128i*)(m + 256))); \
_mm_storeu_si128((__m128i*)(c + 256), t0); \
t1 = _mm_xor_si128(_mm256_extracti128_si256(z##B, 1), \
_mm_loadu_si128((__m128i*)(m + 320))); \
_mm_storeu_si128((__m128i*)(c + 320), t1); \
t2 = _mm_xor_si128(_mm256_extracti128_si256(z##C, 1), \
_mm_loadu_si128((__m128i*)(m + 384))); \
_mm_storeu_si128((__m128i*)(c + 384), t2); \
t3 = _mm_xor_si128(_mm256_extracti128_si256(z##D, 1), \
_mm_loadu_si128((__m128i*)(m + 448))); \
_mm_storeu_si128((__m128i*)(c + 448), t3); \
}
#define ONEQUAD(A, B, C, D) ONEQUAD_TRANSPOSE(A, B, C, D)
#define ONEQUAD_UNPCK(A, B, C, D) \
{ \
z##A = _mm256_add_epi32(z##A, orig##A); \
z##B = _mm256_add_epi32(z##B, orig##B); \
z##C = _mm256_add_epi32(z##C, orig##C); \
z##D = _mm256_add_epi32(z##D, orig##D); \
y##A = _mm256_unpacklo_epi32(z##A, z##B); \
y##B = _mm256_unpacklo_epi32(z##C, z##D); \
y##C = _mm256_unpackhi_epi32(z##A, z##B); \
y##D = _mm256_unpackhi_epi32(z##C, z##D); \
z##A = _mm256_unpacklo_epi64(y##A, y##B); \
z##B = _mm256_unpackhi_epi64(y##A, y##B); \
z##C = _mm256_unpacklo_epi64(y##C, y##D); \
z##D = _mm256_unpackhi_epi64(y##C, y##D); \
}
#define ONEOCTO(A, B, C, D, A2, B2, C2, D2) \
{ \
ONEQUAD_UNPCK(A, B, C, D); \
ONEQUAD_UNPCK(A2, B2, C2, D2); \
y##A = _mm256_permute2x128_si256(z##A, z##A2, 0x20); \
y##A2 = _mm256_permute2x128_si256(z##A, z##A2, 0x31); \
y##B = _mm256_permute2x128_si256(z##B, z##B2, 0x20); \
y##B2 = _mm256_permute2x128_si256(z##B, z##B2, 0x31); \
y##C = _mm256_permute2x128_si256(z##C, z##C2, 0x20); \
y##C2 = _mm256_permute2x128_si256(z##C, z##C2, 0x31); \
y##D = _mm256_permute2x128_si256(z##D, z##D2, 0x20); \
y##D2 = _mm256_permute2x128_si256(z##D, z##D2, 0x31); \
y##A = _mm256_xor_si256(y##A, _mm256_loadu_si256((__m256i*)(m + 0))); \
y##B = _mm256_xor_si256(y##B, _mm256_loadu_si256((__m256i*)(m + 64))); \
y##C = _mm256_xor_si256(y##C, _mm256_loadu_si256((__m256i*)(m + 128))); \
y##D = _mm256_xor_si256(y##D, _mm256_loadu_si256((__m256i*)(m + 192))); \
y##A2 = _mm256_xor_si256(y##A2, _mm256_loadu_si256((__m256i*)(m + 256))); \
y##B2 = _mm256_xor_si256(y##B2, _mm256_loadu_si256((__m256i*)(m + 320))); \
y##C2 = _mm256_xor_si256(y##C2, _mm256_loadu_si256((__m256i*)(m + 384))); \
y##D2 = _mm256_xor_si256(y##D2, _mm256_loadu_si256((__m256i*)(m + 448))); \
_mm256_storeu_si256((__m256i*)(c + 0), y##A); \
_mm256_storeu_si256((__m256i*)(c + 64), y##B); \
_mm256_storeu_si256((__m256i*)(c + 128), y##C); \
_mm256_storeu_si256((__m256i*)(c + 192), y##D); \
_mm256_storeu_si256((__m256i*)(c + 256), y##A2); \
_mm256_storeu_si256((__m256i*)(c + 320), y##B2); \
_mm256_storeu_si256((__m256i*)(c + 384), y##C2); \
_mm256_storeu_si256((__m256i*)(c + 448), y##D2); \
}
ONEOCTO(0, 1, 2, 3, 4, 5, 6, 7);
m += 32;
c += 32;
ONEOCTO(8, 9, 10, 11, 12, 13, 14, 15);
m -= 32;
c -= 32;
#undef ONEQUAD
#undef ONEQUAD_TRANSPOSE
#undef ONEQUAD_UNPCK
#undef ONEOCTO
bytes -= 512;
c += 512;
m += 512;
}
}