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Copy pathsha256_x86_shani.cpp
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sha256_x86_shani.cpp
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// Copyright (c) 2018-2022 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
//
// Based on https://github.com/noloader/SHA-Intrinsics/blob/master/sha256-x86.c,
// Written and placed in public domain by Jeffrey Walton.
// Based on code from Intel, and by Sean Gulley for the miTLS project.
#if defined(ENABLE_SSE41) && defined(ENABLE_X86_SHANI)
#include <stdint.h>
#include <immintrin.h>
#include <attributes.h>
namespace {
alignas(__m128i) const uint8_t MASK[16] = {0x03, 0x02, 0x01, 0x00, 0x07, 0x06, 0x05, 0x04, 0x0b, 0x0a, 0x09, 0x08, 0x0f, 0x0e, 0x0d, 0x0c};
alignas(__m128i) const uint8_t INIT0[16] = {0x8c, 0x68, 0x05, 0x9b, 0x7f, 0x52, 0x0e, 0x51, 0x85, 0xae, 0x67, 0xbb, 0x67, 0xe6, 0x09, 0x6a};
alignas(__m128i) const uint8_t INIT1[16] = {0x19, 0xcd, 0xe0, 0x5b, 0xab, 0xd9, 0x83, 0x1f, 0x3a, 0xf5, 0x4f, 0xa5, 0x72, 0xf3, 0x6e, 0x3c};
void ALWAYS_INLINE QuadRound(__m128i& state0, __m128i& state1, uint64_t k1, uint64_t k0)
{
const __m128i msg = _mm_set_epi64x(k1, k0);
state1 = _mm_sha256rnds2_epu32(state1, state0, msg);
state0 = _mm_sha256rnds2_epu32(state0, state1, _mm_shuffle_epi32(msg, 0x0e));
}
void ALWAYS_INLINE QuadRound(__m128i& state0, __m128i& state1, __m128i m, uint64_t k1, uint64_t k0)
{
const __m128i msg = _mm_add_epi32(m, _mm_set_epi64x(k1, k0));
state1 = _mm_sha256rnds2_epu32(state1, state0, msg);
state0 = _mm_sha256rnds2_epu32(state0, state1, _mm_shuffle_epi32(msg, 0x0e));
}
void ALWAYS_INLINE ShiftMessageA(__m128i& m0, __m128i m1)
{
m0 = _mm_sha256msg1_epu32(m0, m1);
}
void ALWAYS_INLINE ShiftMessageC(__m128i& m0, __m128i m1, __m128i& m2)
{
m2 = _mm_sha256msg2_epu32(_mm_add_epi32(m2, _mm_alignr_epi8(m1, m0, 4)), m1);
}
void ALWAYS_INLINE ShiftMessageB(__m128i& m0, __m128i m1, __m128i& m2)
{
ShiftMessageC(m0, m1, m2);
ShiftMessageA(m0, m1);
}
void ALWAYS_INLINE Shuffle(__m128i& s0, __m128i& s1)
{
const __m128i t1 = _mm_shuffle_epi32(s0, 0xB1);
const __m128i t2 = _mm_shuffle_epi32(s1, 0x1B);
s0 = _mm_alignr_epi8(t1, t2, 0x08);
s1 = _mm_blend_epi16(t2, t1, 0xF0);
}
void ALWAYS_INLINE Unshuffle(__m128i& s0, __m128i& s1)
{
const __m128i t1 = _mm_shuffle_epi32(s0, 0x1B);
const __m128i t2 = _mm_shuffle_epi32(s1, 0xB1);
s0 = _mm_blend_epi16(t1, t2, 0xF0);
s1 = _mm_alignr_epi8(t2, t1, 0x08);
}
__m128i ALWAYS_INLINE Load(const unsigned char* in)
{
return _mm_shuffle_epi8(_mm_loadu_si128((const __m128i*)in), _mm_load_si128((const __m128i*)MASK));
}
void ALWAYS_INLINE Save(unsigned char* out, __m128i s)
{
_mm_storeu_si128((__m128i*)out, _mm_shuffle_epi8(s, _mm_load_si128((const __m128i*)MASK)));
}
}
namespace sha256_x86_shani {
void Transform(uint32_t* s, const unsigned char* chunk, size_t blocks)
{
__m128i m0, m1, m2, m3, s0, s1, so0, so1;
/* Load state */
s0 = _mm_loadu_si128((const __m128i*)s);
s1 = _mm_loadu_si128((const __m128i*)(s + 4));
Shuffle(s0, s1);
while (blocks--) {
/* Remember old state */
so0 = s0;
so1 = s1;
/* Load data and transform */
m0 = Load(chunk);
QuadRound(s0, s1, m0, 0xe9b5dba5b5c0fbcfull, 0x71374491428a2f98ull);
m1 = Load(chunk + 16);
QuadRound(s0, s1, m1, 0xab1c5ed5923f82a4ull, 0x59f111f13956c25bull);
ShiftMessageA(m0, m1);
m2 = Load(chunk + 32);
QuadRound(s0, s1, m2, 0x550c7dc3243185beull, 0x12835b01d807aa98ull);
ShiftMessageA(m1, m2);
m3 = Load(chunk + 48);
QuadRound(s0, s1, m3, 0xc19bf1749bdc06a7ull, 0x80deb1fe72be5d74ull);
ShiftMessageB(m2, m3, m0);
QuadRound(s0, s1, m0, 0x240ca1cc0fc19dc6ull, 0xefbe4786E49b69c1ull);
ShiftMessageB(m3, m0, m1);
QuadRound(s0, s1, m1, 0x76f988da5cb0a9dcull, 0x4a7484aa2de92c6full);
ShiftMessageB(m0, m1, m2);
QuadRound(s0, s1, m2, 0xbf597fc7b00327c8ull, 0xa831c66d983e5152ull);
ShiftMessageB(m1, m2, m3);
QuadRound(s0, s1, m3, 0x1429296706ca6351ull, 0xd5a79147c6e00bf3ull);
ShiftMessageB(m2, m3, m0);
QuadRound(s0, s1, m0, 0x53380d134d2c6dfcull, 0x2e1b213827b70a85ull);
ShiftMessageB(m3, m0, m1);
QuadRound(s0, s1, m1, 0x92722c8581c2c92eull, 0x766a0abb650a7354ull);
ShiftMessageB(m0, m1, m2);
QuadRound(s0, s1, m2, 0xc76c51A3c24b8b70ull, 0xa81a664ba2bfe8a1ull);
ShiftMessageB(m1, m2, m3);
QuadRound(s0, s1, m3, 0x106aa070f40e3585ull, 0xd6990624d192e819ull);
ShiftMessageB(m2, m3, m0);
QuadRound(s0, s1, m0, 0x34b0bcb52748774cull, 0x1e376c0819a4c116ull);
ShiftMessageB(m3, m0, m1);
QuadRound(s0, s1, m1, 0x682e6ff35b9cca4full, 0x4ed8aa4a391c0cb3ull);
ShiftMessageC(m0, m1, m2);
QuadRound(s0, s1, m2, 0x8cc7020884c87814ull, 0x78a5636f748f82eeull);
ShiftMessageC(m1, m2, m3);
QuadRound(s0, s1, m3, 0xc67178f2bef9A3f7ull, 0xa4506ceb90befffaull);
/* Combine with old state */
s0 = _mm_add_epi32(s0, so0);
s1 = _mm_add_epi32(s1, so1);
/* Advance */
chunk += 64;
}
Unshuffle(s0, s1);
_mm_storeu_si128((__m128i*)s, s0);
_mm_storeu_si128((__m128i*)(s + 4), s1);
}
}
namespace sha256d64_x86_shani {
void Transform_2way(unsigned char* out, const unsigned char* in)
{
__m128i am0, am1, am2, am3, as0, as1, aso0, aso1;
__m128i bm0, bm1, bm2, bm3, bs0, bs1, bso0, bso1;
/* Transform 1 */
bs0 = as0 = _mm_load_si128((const __m128i*)INIT0);
bs1 = as1 = _mm_load_si128((const __m128i*)INIT1);
am0 = Load(in);
bm0 = Load(in + 64);
QuadRound(as0, as1, am0, 0xe9b5dba5b5c0fbcfull, 0x71374491428a2f98ull);
QuadRound(bs0, bs1, bm0, 0xe9b5dba5b5c0fbcfull, 0x71374491428a2f98ull);
am1 = Load(in + 16);
bm1 = Load(in + 80);
QuadRound(as0, as1, am1, 0xab1c5ed5923f82a4ull, 0x59f111f13956c25bull);
QuadRound(bs0, bs1, bm1, 0xab1c5ed5923f82a4ull, 0x59f111f13956c25bull);
ShiftMessageA(am0, am1);
ShiftMessageA(bm0, bm1);
am2 = Load(in + 32);
bm2 = Load(in + 96);
QuadRound(as0, as1, am2, 0x550c7dc3243185beull, 0x12835b01d807aa98ull);
QuadRound(bs0, bs1, bm2, 0x550c7dc3243185beull, 0x12835b01d807aa98ull);
ShiftMessageA(am1, am2);
ShiftMessageA(bm1, bm2);
am3 = Load(in + 48);
bm3 = Load(in + 112);
QuadRound(as0, as1, am3, 0xc19bf1749bdc06a7ull, 0x80deb1fe72be5d74ull);
QuadRound(bs0, bs1, bm3, 0xc19bf1749bdc06a7ull, 0x80deb1fe72be5d74ull);
ShiftMessageB(am2, am3, am0);
ShiftMessageB(bm2, bm3, bm0);
QuadRound(as0, as1, am0, 0x240ca1cc0fc19dc6ull, 0xefbe4786E49b69c1ull);
QuadRound(bs0, bs1, bm0, 0x240ca1cc0fc19dc6ull, 0xefbe4786E49b69c1ull);
ShiftMessageB(am3, am0, am1);
ShiftMessageB(bm3, bm0, bm1);
QuadRound(as0, as1, am1, 0x76f988da5cb0a9dcull, 0x4a7484aa2de92c6full);
QuadRound(bs0, bs1, bm1, 0x76f988da5cb0a9dcull, 0x4a7484aa2de92c6full);
ShiftMessageB(am0, am1, am2);
ShiftMessageB(bm0, bm1, bm2);
QuadRound(as0, as1, am2, 0xbf597fc7b00327c8ull, 0xa831c66d983e5152ull);
QuadRound(bs0, bs1, bm2, 0xbf597fc7b00327c8ull, 0xa831c66d983e5152ull);
ShiftMessageB(am1, am2, am3);
ShiftMessageB(bm1, bm2, bm3);
QuadRound(as0, as1, am3, 0x1429296706ca6351ull, 0xd5a79147c6e00bf3ull);
QuadRound(bs0, bs1, bm3, 0x1429296706ca6351ull, 0xd5a79147c6e00bf3ull);
ShiftMessageB(am2, am3, am0);
ShiftMessageB(bm2, bm3, bm0);
QuadRound(as0, as1, am0, 0x53380d134d2c6dfcull, 0x2e1b213827b70a85ull);
QuadRound(bs0, bs1, bm0, 0x53380d134d2c6dfcull, 0x2e1b213827b70a85ull);
ShiftMessageB(am3, am0, am1);
ShiftMessageB(bm3, bm0, bm1);
QuadRound(as0, as1, am1, 0x92722c8581c2c92eull, 0x766a0abb650a7354ull);
QuadRound(bs0, bs1, bm1, 0x92722c8581c2c92eull, 0x766a0abb650a7354ull);
ShiftMessageB(am0, am1, am2);
ShiftMessageB(bm0, bm1, bm2);
QuadRound(as0, as1, am2, 0xc76c51A3c24b8b70ull, 0xa81a664ba2bfe8a1ull);
QuadRound(bs0, bs1, bm2, 0xc76c51A3c24b8b70ull, 0xa81a664ba2bfe8a1ull);
ShiftMessageB(am1, am2, am3);
ShiftMessageB(bm1, bm2, bm3);
QuadRound(as0, as1, am3, 0x106aa070f40e3585ull, 0xd6990624d192e819ull);
QuadRound(bs0, bs1, bm3, 0x106aa070f40e3585ull, 0xd6990624d192e819ull);
ShiftMessageB(am2, am3, am0);
ShiftMessageB(bm2, bm3, bm0);
QuadRound(as0, as1, am0, 0x34b0bcb52748774cull, 0x1e376c0819a4c116ull);
QuadRound(bs0, bs1, bm0, 0x34b0bcb52748774cull, 0x1e376c0819a4c116ull);
ShiftMessageB(am3, am0, am1);
ShiftMessageB(bm3, bm0, bm1);
QuadRound(as0, as1, am1, 0x682e6ff35b9cca4full, 0x4ed8aa4a391c0cb3ull);
QuadRound(bs0, bs1, bm1, 0x682e6ff35b9cca4full, 0x4ed8aa4a391c0cb3ull);
ShiftMessageC(am0, am1, am2);
ShiftMessageC(bm0, bm1, bm2);
QuadRound(as0, as1, am2, 0x8cc7020884c87814ull, 0x78a5636f748f82eeull);
QuadRound(bs0, bs1, bm2, 0x8cc7020884c87814ull, 0x78a5636f748f82eeull);
ShiftMessageC(am1, am2, am3);
ShiftMessageC(bm1, bm2, bm3);
QuadRound(as0, as1, am3, 0xc67178f2bef9A3f7ull, 0xa4506ceb90befffaull);
QuadRound(bs0, bs1, bm3, 0xc67178f2bef9A3f7ull, 0xa4506ceb90befffaull);
as0 = _mm_add_epi32(as0, _mm_load_si128((const __m128i*)INIT0));
bs0 = _mm_add_epi32(bs0, _mm_load_si128((const __m128i*)INIT0));
as1 = _mm_add_epi32(as1, _mm_load_si128((const __m128i*)INIT1));
bs1 = _mm_add_epi32(bs1, _mm_load_si128((const __m128i*)INIT1));
/* Transform 2 */
aso0 = as0;
bso0 = bs0;
aso1 = as1;
bso1 = bs1;
QuadRound(as0, as1, 0xe9b5dba5b5c0fbcfull, 0x71374491c28a2f98ull);
QuadRound(bs0, bs1, 0xe9b5dba5b5c0fbcfull, 0x71374491c28a2f98ull);
QuadRound(as0, as1, 0xab1c5ed5923f82a4ull, 0x59f111f13956c25bull);
QuadRound(bs0, bs1, 0xab1c5ed5923f82a4ull, 0x59f111f13956c25bull);
QuadRound(as0, as1, 0x550c7dc3243185beull, 0x12835b01d807aa98ull);
QuadRound(bs0, bs1, 0x550c7dc3243185beull, 0x12835b01d807aa98ull);
QuadRound(as0, as1, 0xc19bf3749bdc06a7ull, 0x80deb1fe72be5d74ull);
QuadRound(bs0, bs1, 0xc19bf3749bdc06a7ull, 0x80deb1fe72be5d74ull);
QuadRound(as0, as1, 0x240cf2540fe1edc6ull, 0xf0fe4786649b69c1ull);
QuadRound(bs0, bs1, 0x240cf2540fe1edc6ull, 0xf0fe4786649b69c1ull);
QuadRound(as0, as1, 0x16f988fa61b9411eull, 0x6cc984be4fe9346full);
QuadRound(bs0, bs1, 0x16f988fa61b9411eull, 0x6cc984be4fe9346full);
QuadRound(as0, as1, 0xb9d99ec7b019fc65ull, 0xa88e5a6df2c65152ull);
QuadRound(bs0, bs1, 0xb9d99ec7b019fc65ull, 0xa88e5a6df2c65152ull);
QuadRound(as0, as1, 0xc7353eb0fdb1232bull, 0xe70eeaa09a1231c3ull);
QuadRound(bs0, bs1, 0xc7353eb0fdb1232bull, 0xe70eeaa09a1231c3ull);
QuadRound(as0, as1, 0xdc1eeefd5a0f118full, 0xcb976d5f3069bad5ull);
QuadRound(bs0, bs1, 0xdc1eeefd5a0f118full, 0xcb976d5f3069bad5ull);
QuadRound(as0, as1, 0xe15d5b1658f4ca9dull, 0xde0b7a040a35b689ull);
QuadRound(bs0, bs1, 0xe15d5b1658f4ca9dull, 0xde0b7a040a35b689ull);
QuadRound(as0, as1, 0x6fab9537a507ea32ull, 0x37088980007f3e86ull);
QuadRound(bs0, bs1, 0x6fab9537a507ea32ull, 0x37088980007f3e86ull);
QuadRound(as0, as1, 0xc0bbbe37cdaa3b6dull, 0x0d8cd6f117406110ull);
QuadRound(bs0, bs1, 0xc0bbbe37cdaa3b6dull, 0x0d8cd6f117406110ull);
QuadRound(as0, as1, 0x6fd15ca70b02e931ull, 0xdb48a36383613bdaull);
QuadRound(bs0, bs1, 0x6fd15ca70b02e931ull, 0xdb48a36383613bdaull);
QuadRound(as0, as1, 0x6d4378906ed41a95ull, 0x31338431521afacaull);
QuadRound(bs0, bs1, 0x6d4378906ed41a95ull, 0x31338431521afacaull);
QuadRound(as0, as1, 0x532fb63cb5c9a0e6ull, 0x9eccabbdc39c91f2ull);
QuadRound(bs0, bs1, 0x532fb63cb5c9a0e6ull, 0x9eccabbdc39c91f2ull);
QuadRound(as0, as1, 0x4c191d76a4954b68ull, 0x07237ea3d2c741c6ull);
QuadRound(bs0, bs1, 0x4c191d76a4954b68ull, 0x07237ea3d2c741c6ull);
as0 = _mm_add_epi32(as0, aso0);
bs0 = _mm_add_epi32(bs0, bso0);
as1 = _mm_add_epi32(as1, aso1);
bs1 = _mm_add_epi32(bs1, bso1);
/* Extract hash */
Unshuffle(as0, as1);
Unshuffle(bs0, bs1);
am0 = as0;
bm0 = bs0;
am1 = as1;
bm1 = bs1;
/* Transform 3 */
bs0 = as0 = _mm_load_si128((const __m128i*)INIT0);
bs1 = as1 = _mm_load_si128((const __m128i*)INIT1);
QuadRound(as0, as1, am0, 0xe9b5dba5B5c0fbcfull, 0x71374491428a2f98ull);
QuadRound(bs0, bs1, bm0, 0xe9b5dba5B5c0fbcfull, 0x71374491428a2f98ull);
QuadRound(as0, as1, am1, 0xab1c5ed5923f82a4ull, 0x59f111f13956c25bull);
QuadRound(bs0, bs1, bm1, 0xab1c5ed5923f82a4ull, 0x59f111f13956c25bull);
ShiftMessageA(am0, am1);
ShiftMessageA(bm0, bm1);
bm2 = am2 = _mm_set_epi64x(0x0ull, 0x80000000ull);
QuadRound(as0, as1, 0x550c7dc3243185beull, 0x12835b015807aa98ull);
QuadRound(bs0, bs1, 0x550c7dc3243185beull, 0x12835b015807aa98ull);
ShiftMessageA(am1, am2);
ShiftMessageA(bm1, bm2);
bm3 = am3 = _mm_set_epi64x(0x10000000000ull, 0x0ull);
QuadRound(as0, as1, 0xc19bf2749bdc06a7ull, 0x80deb1fe72be5d74ull);
QuadRound(bs0, bs1, 0xc19bf2749bdc06a7ull, 0x80deb1fe72be5d74ull);
ShiftMessageB(am2, am3, am0);
ShiftMessageB(bm2, bm3, bm0);
QuadRound(as0, as1, am0, 0x240ca1cc0fc19dc6ull, 0xefbe4786e49b69c1ull);
QuadRound(bs0, bs1, bm0, 0x240ca1cc0fc19dc6ull, 0xefbe4786e49b69c1ull);
ShiftMessageB(am3, am0, am1);
ShiftMessageB(bm3, bm0, bm1);
QuadRound(as0, as1, am1, 0x76f988da5cb0a9dcull, 0x4a7484aa2de92c6full);
QuadRound(bs0, bs1, bm1, 0x76f988da5cb0a9dcull, 0x4a7484aa2de92c6full);
ShiftMessageB(am0, am1, am2);
ShiftMessageB(bm0, bm1, bm2);
QuadRound(as0, as1, am2, 0xbf597fc7b00327c8ull, 0xa831c66d983e5152ull);
QuadRound(bs0, bs1, bm2, 0xbf597fc7b00327c8ull, 0xa831c66d983e5152ull);
ShiftMessageB(am1, am2, am3);
ShiftMessageB(bm1, bm2, bm3);
QuadRound(as0, as1, am3, 0x1429296706ca6351ull, 0xd5a79147c6e00bf3ull);
QuadRound(bs0, bs1, bm3, 0x1429296706ca6351ull, 0xd5a79147c6e00bf3ull);
ShiftMessageB(am2, am3, am0);
ShiftMessageB(bm2, bm3, bm0);
QuadRound(as0, as1, am0, 0x53380d134d2c6dfcull, 0x2e1b213827b70a85ull);
QuadRound(bs0, bs1, bm0, 0x53380d134d2c6dfcull, 0x2e1b213827b70a85ull);
ShiftMessageB(am3, am0, am1);
ShiftMessageB(bm3, bm0, bm1);
QuadRound(as0, as1, am1, 0x92722c8581c2c92eull, 0x766a0abb650a7354ull);
QuadRound(bs0, bs1, bm1, 0x92722c8581c2c92eull, 0x766a0abb650a7354ull);
ShiftMessageB(am0, am1, am2);
ShiftMessageB(bm0, bm1, bm2);
QuadRound(as0, as1, am2, 0xc76c51a3c24b8b70ull, 0xa81a664ba2bfe8A1ull);
QuadRound(bs0, bs1, bm2, 0xc76c51a3c24b8b70ull, 0xa81a664ba2bfe8A1ull);
ShiftMessageB(am1, am2, am3);
ShiftMessageB(bm1, bm2, bm3);
QuadRound(as0, as1, am3, 0x106aa070f40e3585ull, 0xd6990624d192e819ull);
QuadRound(bs0, bs1, bm3, 0x106aa070f40e3585ull, 0xd6990624d192e819ull);
ShiftMessageB(am2, am3, am0);
ShiftMessageB(bm2, bm3, bm0);
QuadRound(as0, as1, am0, 0x34b0bcb52748774cull, 0x1e376c0819a4c116ull);
QuadRound(bs0, bs1, bm0, 0x34b0bcb52748774cull, 0x1e376c0819a4c116ull);
ShiftMessageB(am3, am0, am1);
ShiftMessageB(bm3, bm0, bm1);
QuadRound(as0, as1, am1, 0x682e6ff35b9cca4full, 0x4ed8aa4a391c0cb3ull);
QuadRound(bs0, bs1, bm1, 0x682e6ff35b9cca4full, 0x4ed8aa4a391c0cb3ull);
ShiftMessageC(am0, am1, am2);
ShiftMessageC(bm0, bm1, bm2);
QuadRound(as0, as1, am2, 0x8cc7020884c87814ull, 0x78a5636f748f82eeull);
QuadRound(bs0, bs1, bm2, 0x8cc7020884c87814ull, 0x78a5636f748f82eeull);
ShiftMessageC(am1, am2, am3);
ShiftMessageC(bm1, bm2, bm3);
QuadRound(as0, as1, am3, 0xc67178f2bef9a3f7ull, 0xa4506ceb90befffaull);
QuadRound(bs0, bs1, bm3, 0xc67178f2bef9a3f7ull, 0xa4506ceb90befffaull);
as0 = _mm_add_epi32(as0, _mm_load_si128((const __m128i*)INIT0));
bs0 = _mm_add_epi32(bs0, _mm_load_si128((const __m128i*)INIT0));
as1 = _mm_add_epi32(as1, _mm_load_si128((const __m128i*)INIT1));
bs1 = _mm_add_epi32(bs1, _mm_load_si128((const __m128i*)INIT1));
/* Extract hash into out */
Unshuffle(as0, as1);
Unshuffle(bs0, bs1);
Save(out, as0);
Save(out + 16, as1);
Save(out + 32, bs0);
Save(out + 48, bs1);
}
}
#endif