shadps4-emu/ext-cryptopp
1
0
Fork 0
mirror of https://github.com/shadps4-emu/ext-cryptopp.git synced 2024-11-23 09:59:42 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Switch to _mm_loadu_pd to load round keys

Browse Source 
This is profitable by 0.1 to 0.2 cpb on a modern Core-i5
This commit is contained in:
Jeffrey Walton 2018-06-20 01:20:27 -04:00
parent 1fd8d612ea
commit a6cdf2bfd1
No known key found for this signature in database
GPG Key ID: B36AB348921B1838
1 changed files with 52 additions and 44 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

96
cham-simd.cpp
View File

@ -180,40 +180,42 @@ inline void GCC_NO_UBSAN CHAM128_Enc_Block(__m128i &block0,
const unsigned int MASK = (rounds == 80 ? 7 : 15);
for (int i=0; i<static_cast<int>(rounds); i+=4)
{
__m128i k, kr, t1, t2;
__m128i k, k1, k2, t1, t2;
k = _mm_loadu_si128((const __m128i*) &subkeys[i & MASK]);
kr = _mm_shuffle_epi8(k, _mm_set_epi8(3,2,1,0, 3,2,1,0, 3,2,1,0, 3,2,1,0));
// This is a better pattern than loading 4 words via _mm_loadu_si128
k = _mm_castpd_si128(_mm_loadu_pd((const double*) &subkeys[(i+0) & MASK]));
k1 = _mm_shuffle_epi8(k, _mm_set_epi8(3,2,1,0, 3,2,1,0, 3,2,1,0, 3,2,1,0));
k2 = _mm_shuffle_epi8(k, _mm_set_epi8(7,6,5,4, 7,6,5,4, 7,6,5,4, 7,6,5,4));
t1 = _mm_xor_si128(a, counter);
t2 = _mm_xor_si128(RotateLeft32<1>(b), kr);
t2 = _mm_xor_si128(RotateLeft32<1>(b), k1);
a = RotateLeft32<8>(_mm_add_epi32(t1, t2));
counter = _mm_add_epi32(counter, increment);
kr = _mm_shuffle_epi8(k, _mm_set_epi8(7,6,5,4, 7,6,5,4, 7,6,5,4, 7,6,5,4));
t1 = _mm_xor_si128(b, counter);
t2 = _mm_xor_si128(RotateLeft32<8>(c), kr);
t2 = _mm_xor_si128(RotateLeft32<8>(c), k2);
b = RotateLeft32<1>(_mm_add_epi32(t1, t2));
counter = _mm_add_epi32(counter, increment);
kr = _mm_shuffle_epi8(k, _mm_set_epi8(11,10,9,8, 11,10,9,8, 11,10,9,8, 11,10,9,8));
k = _mm_castpd_si128(_mm_loadu_pd((const double*) &subkeys[(i+2) & MASK]));
k1 = _mm_shuffle_epi8(k, _mm_set_epi8(3,2,1,0, 3,2,1,0, 3,2,1,0, 3,2,1,0));
k2 = _mm_shuffle_epi8(k, _mm_set_epi8(7,6,5,4, 7,6,5,4, 7,6,5,4, 7,6,5,4));
t1 = _mm_xor_si128(c, counter);
t2 = _mm_xor_si128(RotateLeft32<1>(d), kr);
t2 = _mm_xor_si128(RotateLeft32<1>(d), k1);
c = RotateLeft32<8>(_mm_add_epi32(t1, t2));
counter = _mm_add_epi32(counter, increment);
kr = _mm_shuffle_epi8(k, _mm_set_epi8(15,14,13,12, 15,14,13,12, 15,14,13,12, 15,14,13,12));
t1 = _mm_xor_si128(d, counter);
t2 = _mm_xor_si128(RotateLeft32<8>(a), kr);
t2 = _mm_xor_si128(RotateLeft32<8>(a), k2);
d = RotateLeft32<1>(_mm_add_epi32(t1, t2));
counter = _mm_add_epi32(counter, increment);
}
// Repack
// [A1 B1 C1 D1][A2 B2 C2 D2] ... => [A1 A2 A3 A4][B1 B2 B3 B4] ...
block0 = RepackXMM<0>(a,b,c,d);
}
@ -236,44 +238,46 @@ inline void GCC_NO_UBSAN CHAM128_Dec_Block(__m128i &block0,
const unsigned int MASK = (rounds == 80 ? 7 : 15);
for (int i = static_cast<int>(rounds)-1; i >= 0; i-=4)
{
__m128i k, kr, t1, t2;
__m128i k, k1, k2, t1, t2;
k = _mm_loadu_si128((const __m128i*) &subkeys[(i-3) & MASK]);
kr = _mm_shuffle_epi8(k, _mm_set_epi8(15,14,13,12, 15,14,13,12, 15,14,13,12, 15,14,13,12));
// This is a better pattern than loading 4 words via _mm_loadu_si128
k = _mm_castpd_si128(_mm_loadu_pd((const double*) &subkeys[(i-1) & MASK]));
k1 = _mm_shuffle_epi8(k, _mm_set_epi8(7,6,5,4, 7,6,5,4, 7,6,5,4, 7,6,5,4));
k2 = _mm_shuffle_epi8(k, _mm_set_epi8(3,2,1,0, 3,2,1,0, 3,2,1,0, 3,2,1,0));
// Odd round
t1 = RotateRight32<1>(d);
t2 = _mm_xor_si128(RotateLeft32<8>(a), kr);
t2 = _mm_xor_si128(RotateLeft32<8>(a), k1);
d = _mm_xor_si128(_mm_sub_epi32(t1, t2), counter);
counter = _mm_sub_epi32(counter, decrement);
kr = _mm_shuffle_epi8(k, _mm_set_epi8(11,10,9,8, 11,10,9,8, 11,10,9,8, 11,10,9,8));
// Even round
t1 = RotateRight32<8>(c);
t2 = _mm_xor_si128(RotateLeft32<1>(d), kr);
t2 = _mm_xor_si128(RotateLeft32<1>(d), k2);
c = _mm_xor_si128(_mm_sub_epi32(t1, t2), counter);
counter = _mm_sub_epi32(counter, decrement);
kr = _mm_shuffle_epi8(k, _mm_set_epi8(7,6,5,4, 7,6,5,4, 7,6,5,4, 7,6,5,4));
k = _mm_castpd_si128(_mm_loadu_pd((const double*) &subkeys[(i-3) & MASK]));
k1 = _mm_shuffle_epi8(k, _mm_set_epi8(7,6,5,4, 7,6,5,4, 7,6,5,4, 7,6,5,4));
k2 = _mm_shuffle_epi8(k, _mm_set_epi8(3,2,1,0, 3,2,1,0, 3,2,1,0, 3,2,1,0));
// Odd round
t1 = RotateRight32<1>(b);
t2 = _mm_xor_si128(RotateLeft32<8>(c), kr);
t2 = _mm_xor_si128(RotateLeft32<8>(c), k1);
b = _mm_xor_si128(_mm_sub_epi32(t1, t2), counter);
counter = _mm_sub_epi32(counter, decrement);
kr = _mm_shuffle_epi8(k, _mm_set_epi8(3,2,1,0, 3,2,1,0, 3,2,1,0, 3,2,1,0));
// Even round
t1 = RotateRight32<8>(a);
t2 = _mm_xor_si128(RotateLeft32<1>(b), kr);
t2 = _mm_xor_si128(RotateLeft32<1>(b), k2);
a = _mm_xor_si128(_mm_sub_epi32(t1, t2), counter);
counter = _mm_sub_epi32(counter, decrement);
}
// Repack
// [A1 B1 C1 D1][A2 B2 C2 D2] ... => [A1 A2 A3 A4][B1 B2 B3 B4] ...
block0 = RepackXMM<0>(a,b,c,d);
}
@ -296,40 +300,42 @@ inline void GCC_NO_UBSAN CHAM128_Enc_4_Blocks(__m128i &block0, __m128i &block1,
const unsigned int MASK = (rounds == 80 ? 7 : 15);
for (int i=0; i<static_cast<int>(rounds); i+=4)
{
__m128i k, kr, t1, t2;
__m128i k, k1, k2, t1, t2;
k = _mm_loadu_si128((const __m128i*) &subkeys[i & MASK]);
kr = _mm_shuffle_epi8(k, _mm_set_epi8(3,2,1,0, 3,2,1,0, 3,2,1,0, 3,2,1,0));
// This is a better pattern than loading 4 words via _mm_loadu_si128
k = _mm_castpd_si128(_mm_loadu_pd((const double*) &subkeys[(i+0) & MASK]));
k1 = _mm_shuffle_epi8(k, _mm_set_epi8(3,2,1,0, 3,2,1,0, 3,2,1,0, 3,2,1,0));
k2 = _mm_shuffle_epi8(k, _mm_set_epi8(7,6,5,4, 7,6,5,4, 7,6,5,4, 7,6,5,4));
t1 = _mm_xor_si128(a, counter);
t2 = _mm_xor_si128(RotateLeft32<1>(b), kr);
t2 = _mm_xor_si128(RotateLeft32<1>(b), k1);
a = RotateLeft32<8>(_mm_add_epi32(t1, t2));
counter = _mm_add_epi32(counter, increment);
kr = _mm_shuffle_epi8(k, _mm_set_epi8(7,6,5,4, 7,6,5,4, 7,6,5,4, 7,6,5,4));
t1 = _mm_xor_si128(b, counter);
t2 = _mm_xor_si128(RotateLeft32<8>(c), kr);
t2 = _mm_xor_si128(RotateLeft32<8>(c), k2);
b = RotateLeft32<1>(_mm_add_epi32(t1, t2));
counter = _mm_add_epi32(counter, increment);
kr = _mm_shuffle_epi8(k, _mm_set_epi8(11,10,9,8, 11,10,9,8, 11,10,9,8, 11,10,9,8));
k = _mm_castpd_si128(_mm_loadu_pd((const double*) &subkeys[(i+2) & MASK]));
k1 = _mm_shuffle_epi8(k, _mm_set_epi8(3,2,1,0, 3,2,1,0, 3,2,1,0, 3,2,1,0));
k2 = _mm_shuffle_epi8(k, _mm_set_epi8(7,6,5,4, 7,6,5,4, 7,6,5,4, 7,6,5,4));
t1 = _mm_xor_si128(c, counter);
t2 = _mm_xor_si128(RotateLeft32<1>(d), kr);
t2 = _mm_xor_si128(RotateLeft32<1>(d), k1);
c = RotateLeft32<8>(_mm_add_epi32(t1, t2));
counter = _mm_add_epi32(counter, increment);
kr = _mm_shuffle_epi8(k, _mm_set_epi8(15,14,13,12, 15,14,13,12, 15,14,13,12, 15,14,13,12));
t1 = _mm_xor_si128(d, counter);
t2 = _mm_xor_si128(RotateLeft32<8>(a), kr);
t2 = _mm_xor_si128(RotateLeft32<8>(a), k2);
d = RotateLeft32<1>(_mm_add_epi32(t1, t2));
counter = _mm_add_epi32(counter, increment);
}
// Repack
// [A1 B1 C1 D1][A2 B2 C2 D2] ... => [A1 A2 A3 A4][B1 B2 B3 B4] ...
block0 = RepackXMM<0>(a,b,c,d);
block1 = RepackXMM<1>(a,b,c,d);
@ -355,44 +361,46 @@ inline void GCC_NO_UBSAN CHAM128_Dec_4_Blocks(__m128i &block0, __m128i &block1,
const unsigned int MASK = (rounds == 80 ? 7 : 15);
for (int i = static_cast<int>(rounds)-1; i >= 0; i-=4)
{
__m128i k, kr, t1, t2;
__m128i k, k1, k2, t1, t2;
k = _mm_loadu_si128((const __m128i*) &subkeys[(i-3) & MASK]);
kr = _mm_shuffle_epi8(k, _mm_set_epi8(15,14,13,12, 15,14,13,12, 15,14,13,12, 15,14,13,12));
// This is a better pattern than loading 4 words via _mm_loadu_si128
k = _mm_castpd_si128(_mm_loadu_pd((const double*) &subkeys[(i-1) & MASK]));
k1 = _mm_shuffle_epi8(k, _mm_set_epi8(7,6,5,4, 7,6,5,4, 7,6,5,4, 7,6,5,4));
k2 = _mm_shuffle_epi8(k, _mm_set_epi8(3,2,1,0, 3,2,1,0, 3,2,1,0, 3,2,1,0));
// Odd round
t1 = RotateRight32<1>(d);
t2 = _mm_xor_si128(RotateLeft32<8>(a), kr);
t2 = _mm_xor_si128(RotateLeft32<8>(a), k1);
d = _mm_xor_si128(_mm_sub_epi32(t1, t2), counter);
counter = _mm_sub_epi32(counter, decrement);
kr = _mm_shuffle_epi8(k, _mm_set_epi8(11,10,9,8, 11,10,9,8, 11,10,9,8, 11,10,9,8));
// Even round
t1 = RotateRight32<8>(c);
t2 = _mm_xor_si128(RotateLeft32<1>(d), kr);
t2 = _mm_xor_si128(RotateLeft32<1>(d), k2);
c = _mm_xor_si128(_mm_sub_epi32(t1, t2), counter);
counter = _mm_sub_epi32(counter, decrement);
kr = _mm_shuffle_epi8(k, _mm_set_epi8(7,6,5,4, 7,6,5,4, 7,6,5,4, 7,6,5,4));
k = _mm_castpd_si128(_mm_loadu_pd((const double*) &subkeys[(i-3) & MASK]));
k1 = _mm_shuffle_epi8(k, _mm_set_epi8(7,6,5,4, 7,6,5,4, 7,6,5,4, 7,6,5,4));
k2 = _mm_shuffle_epi8(k, _mm_set_epi8(3,2,1,0, 3,2,1,0, 3,2,1,0, 3,2,1,0));
// Odd round
t1 = RotateRight32<1>(b);
t2 = _mm_xor_si128(RotateLeft32<8>(c), kr);
t2 = _mm_xor_si128(RotateLeft32<8>(c), k1);
b = _mm_xor_si128(_mm_sub_epi32(t1, t2), counter);
counter = _mm_sub_epi32(counter, decrement);
kr = _mm_shuffle_epi8(k, _mm_set_epi8(3,2,1,0, 3,2,1,0, 3,2,1,0, 3,2,1,0));
// Even round
t1 = RotateRight32<8>(a);
t2 = _mm_xor_si128(RotateLeft32<1>(b), kr);
t2 = _mm_xor_si128(RotateLeft32<1>(b), k2);
a = _mm_xor_si128(_mm_sub_epi32(t1, t2), counter);
counter = _mm_sub_epi32(counter, decrement);
}
// Repack
// [A1 B1 C1 D1][A2 B2 C2 D2] ... => [A1 A2 A3 A4][B1 B2 B3 B4] ...
block0 = RepackXMM<0>(a,b,c,d);
block1 = RepackXMM<1>(a,b,c,d);