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1002 lines (853 loc) · 25 KB
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/* AesOpt.c -- AES optimized code for x86 AES hardware instructions
Igor Pavlov : Public domain */
#include "Precomp.h"
#include "Aes.h"
#include "CpuArch.h"
#ifdef MY_CPU_X86_OR_AMD64
#if defined(__INTEL_COMPILER)
#if (__INTEL_COMPILER >= 1110)
#define USE_INTEL_AES
#if (__INTEL_COMPILER >= 1900)
#define USE_INTEL_VAES
#endif
#endif
#elif defined(Z7_CLANG_VERSION) && (Z7_CLANG_VERSION >= 30800) \
|| defined(Z7_GCC_VERSION) && (Z7_GCC_VERSION >= 40400)
#define USE_INTEL_AES
#if !defined(__AES__)
#define ATTRIB_AES __attribute__((__target__("aes")))
#endif
#if defined(__clang__) && (__clang_major__ >= 8) \
|| defined(__GNUC__) && (__GNUC__ >= 8)
#define USE_INTEL_VAES
#if !defined(__AES__) || !defined(__VAES__) || !defined(__AVX__) || !defined(__AVX2__)
#define ATTRIB_VAES __attribute__((__target__("aes,vaes,avx,avx2")))
#endif
#endif
#elif defined(_MSC_VER)
#if (_MSC_VER > 1500) || (_MSC_FULL_VER >= 150030729)
#define USE_INTEL_AES
#if (_MSC_VER >= 1910)
#define USE_INTEL_VAES
#endif
#endif
#ifndef USE_INTEL_AES
#define Z7_USE_AES_HW_STUB
#endif
#ifndef USE_INTEL_VAES
#define Z7_USE_VAES_HW_STUB
#endif
#endif
#ifndef USE_INTEL_AES
// #define Z7_USE_AES_HW_STUB // for debug
#endif
#ifndef USE_INTEL_VAES
// #define Z7_USE_VAES_HW_STUB // for debug
#endif
#ifdef USE_INTEL_AES
#include <wmmintrin.h>
#if !defined(USE_INTEL_VAES) && defined(Z7_USE_VAES_HW_STUB)
#define AES_TYPE_keys UInt32
#define AES_TYPE_data Byte
// #define AES_TYPE_keys __m128i
// #define AES_TYPE_data __m128i
#endif
#ifndef ATTRIB_AES
#define ATTRIB_AES
#endif
#define AES_FUNC_START(name) \
void Z7_FASTCALL name(UInt32 *ivAes, Byte *data8, size_t numBlocks)
// void Z7_FASTCALL name(__m128i *p, __m128i *data, size_t numBlocks)
#define AES_FUNC_START2(name) \
AES_FUNC_START (name); \
ATTRIB_AES \
AES_FUNC_START (name)
#define MM_OP(op, dest, src) dest = op(dest, src);
#define MM_OP_m(op, src) MM_OP(op, m, src)
#define MM_XOR( dest, src) MM_OP(_mm_xor_si128, dest, src)
#if 1
// use aligned SSE load/store for data.
// It is required for our Aes functions, that data is aligned for 16-bytes.
// So we can use this branch of code.
// and compiler can use fused load-op SSE instructions:
// xorps xmm0, XMMWORD PTR [rdx]
#define LOAD_128(pp) (*(__m128i *)(void *)(pp))
#define STORE_128(pp, _v) *(__m128i *)(void *)(pp) = _v
// use aligned SSE load/store for data. Alternative code with direct access
// #define LOAD_128(pp) _mm_load_si128(pp)
// #define STORE_128(pp, _v) _mm_store_si128(pp, _v)
#else
// use unaligned load/store for data: movdqu XMMWORD PTR [rdx]
#define LOAD_128(pp) _mm_loadu_si128(pp)
#define STORE_128(pp, _v) _mm_storeu_si128(pp, _v)
#endif
AES_FUNC_START2 (AesCbc_Encode_HW)
{
if (numBlocks == 0)
return;
{
__m128i *p = (__m128i *)(void *)ivAes;
__m128i *data = (__m128i *)(void *)data8;
__m128i m = *p;
const __m128i k0 = p[2];
const __m128i k1 = p[3];
const UInt32 numRounds2 = *(const UInt32 *)(p + 1) - 1;
do
{
UInt32 r = numRounds2;
const __m128i *w = p + 4;
__m128i temp = LOAD_128(data);
MM_XOR (temp, k0)
MM_XOR (m, temp)
MM_OP_m (_mm_aesenc_si128, k1)
do
{
MM_OP_m (_mm_aesenc_si128, w[0])
MM_OP_m (_mm_aesenc_si128, w[1])
w += 2;
}
while (--r);
MM_OP_m (_mm_aesenclast_si128, w[0])
STORE_128(data, m);
data++;
}
while (--numBlocks);
*p = m;
}
}
#define WOP_1(op)
#define WOP_2(op) WOP_1 (op) op (m1, 1)
#define WOP_3(op) WOP_2 (op) op (m2, 2)
#define WOP_4(op) WOP_3 (op) op (m3, 3)
#ifdef MY_CPU_AMD64
#define WOP_5(op) WOP_4 (op) op (m4, 4)
#define WOP_6(op) WOP_5 (op) op (m5, 5)
#define WOP_7(op) WOP_6 (op) op (m6, 6)
#define WOP_8(op) WOP_7 (op) op (m7, 7)
#endif
/*
#define WOP_9(op) WOP_8 (op) op (m8, 8);
#define WOP_10(op) WOP_9 (op) op (m9, 9);
#define WOP_11(op) WOP_10(op) op (m10, 10);
#define WOP_12(op) WOP_11(op) op (m11, 11);
#define WOP_13(op) WOP_12(op) op (m12, 12);
#define WOP_14(op) WOP_13(op) op (m13, 13);
*/
#ifdef MY_CPU_AMD64
#define NUM_WAYS 8
#define WOP_M1 WOP_8
#else
#define NUM_WAYS 4
#define WOP_M1 WOP_4
#endif
#define WOP(op) op (m0, 0) WOP_M1(op)
#define DECLARE_VAR(reg, ii) __m128i reg;
#define LOAD_data_ii(ii) LOAD_128(data + (ii))
#define LOAD_data( reg, ii) reg = LOAD_data_ii(ii);
#define STORE_data( reg, ii) STORE_128(data + (ii), reg);
#if (NUM_WAYS > 1)
#define XOR_data_M1(reg, ii) MM_XOR (reg, LOAD_128(data + (ii- 1)))
#endif
#define MM_OP_key(op, reg) MM_OP(op, reg, key);
#define AES_DEC( reg, ii) MM_OP_key (_mm_aesdec_si128, reg)
#define AES_DEC_LAST( reg, ii) MM_OP_key (_mm_aesdeclast_si128, reg)
#define AES_ENC( reg, ii) MM_OP_key (_mm_aesenc_si128, reg)
#define AES_ENC_LAST( reg, ii) MM_OP_key (_mm_aesenclast_si128, reg)
#define AES_XOR( reg, ii) MM_OP_key (_mm_xor_si128, reg)
#define CTR_START(reg, ii) MM_OP (_mm_add_epi64, ctr, one) reg = ctr;
#define CTR_END( reg, ii) STORE_128(data + (ii), _mm_xor_si128(reg, \
LOAD_128 (data + (ii))));
#define WOP_KEY(op, n) { \
const __m128i key = w[n]; \
WOP(op) }
#define WIDE_LOOP_START \
dataEnd = data + numBlocks; \
if (numBlocks >= NUM_WAYS) \
{ dataEnd -= NUM_WAYS; do { \
#define WIDE_LOOP_END \
data += NUM_WAYS; \
} while (data <= dataEnd); \
dataEnd += NUM_WAYS; } \
#define SINGLE_LOOP \
for (; data < dataEnd; data++)
#ifdef USE_INTEL_VAES
#define AVX_XOR(dest, src) MM_OP(_mm256_xor_si256, dest, src)
#define AVX_DECLARE_VAR(reg, ii) __m256i reg;
#if 1
// use unaligned AVX load/store for data.
// It is required for our Aes functions, that data is aligned for 16-bytes.
// But we need 32-bytes reading.
// So we use intrinsics for unaligned AVX load/store.
// notes for _mm256_storeu_si256:
// msvc2022: uses vmovdqu and keeps the order of instruction sequence.
// new gcc11 uses vmovdqu
// old gcc9 could use pair of instructions:
// vmovups %xmm7, -224(%rax)
// vextracti128 $0x1, %ymm7, -208(%rax)
#define AVX_LOAD(p) _mm256_loadu_si256((const __m256i *)(const void *)(p))
#define AVX_STORE(p, _v) _mm256_storeu_si256((__m256i *)(void *)(p), _v);
#else
// use aligned AVX load/store for data.
// for debug: we can use this branch, if we are sure that data is aligned for 32-bytes.
// msvc2022 uses vmovdqu still
// gcc uses vmovdqa (that requires 32-bytes alignment)
#define AVX_LOAD(p) (*(const __m256i *)(const void *)(p))
#define AVX_STORE(p, _v) (*(__m256i *)(void *)(p)) = _v;
#endif
#define AVX_LOAD_data( reg, ii) reg = AVX_LOAD((const __m256i *)(const void *)data + (ii));
#define AVX_STORE_data( reg, ii) AVX_STORE((__m256i *)(void *)data + (ii), reg)
/*
AVX_XOR_data_M1() needs unaligned memory load, even if (data)
is aligned for 256-bits, because we read 32-bytes chunk that
crosses (data) position: from (data - 16bytes) to (data + 16bytes).
*/
#define AVX_XOR_data_M1(reg, ii) AVX_XOR (reg, _mm256_loadu_si256((const __m256i *)(const void *)(data - 1) + (ii)))
#define AVX_AES_DEC( reg, ii) MM_OP_key (_mm256_aesdec_epi128, reg)
#define AVX_AES_DEC_LAST( reg, ii) MM_OP_key (_mm256_aesdeclast_epi128, reg)
#define AVX_AES_ENC( reg, ii) MM_OP_key (_mm256_aesenc_epi128, reg)
#define AVX_AES_ENC_LAST( reg, ii) MM_OP_key (_mm256_aesenclast_epi128, reg)
#define AVX_AES_XOR( reg, ii) MM_OP_key (_mm256_xor_si256, reg)
#define AVX_CTR_START(reg, ii) \
MM_OP (_mm256_add_epi64, ctr2, two) \
reg = _mm256_xor_si256(ctr2, key);
#define AVX_CTR_END(reg, ii) \
AVX_STORE((__m256i *)(void *)data + (ii), _mm256_xor_si256(reg, \
AVX_LOAD ((__m256i *)(void *)data + (ii))));
#define AVX_WOP_KEY(op, n) { \
const __m256i key = w[n]; \
WOP(op) }
#define NUM_AES_KEYS_MAX 15
#define WIDE_LOOP_START_AVX(OP) \
dataEnd = data + numBlocks; \
if (numBlocks >= NUM_WAYS * 2) \
{ __m256i keys[NUM_AES_KEYS_MAX]; \
OP \
{ UInt32 ii; for (ii = 0; ii < numRounds; ii++) \
keys[ii] = _mm256_broadcastsi128_si256(p[ii]); } \
dataEnd -= NUM_WAYS * 2; \
do { \
#define WIDE_LOOP_END_AVX(OP) \
data += NUM_WAYS * 2; \
} while (data <= dataEnd); \
dataEnd += NUM_WAYS * 2; \
OP \
_mm256_zeroupper(); \
} \
/* MSVC for x86: If we don't call _mm256_zeroupper(), and -arch:IA32 is not specified,
MSVC still can insert vzeroupper instruction. */
#endif
AES_FUNC_START2 (AesCbc_Decode_HW)
{
__m128i *p = (__m128i *)(void *)ivAes;
__m128i *data = (__m128i *)(void *)data8;
__m128i iv = *p;
const __m128i * const wStart = p + (size_t)*(const UInt32 *)(p + 1) * 2 + 2 - 1;
const __m128i *dataEnd;
p += 2;
WIDE_LOOP_START
{
const __m128i *w = wStart;
WOP (DECLARE_VAR)
WOP (LOAD_data)
WOP_KEY (AES_XOR, 1)
do
{
WOP_KEY (AES_DEC, 0)
w--;
}
while (w != p);
WOP_KEY (AES_DEC_LAST, 0)
MM_XOR (m0, iv)
WOP_M1 (XOR_data_M1)
LOAD_data(iv, NUM_WAYS - 1)
WOP (STORE_data)
}
WIDE_LOOP_END
SINGLE_LOOP
{
const __m128i *w = wStart - 1;
__m128i m = _mm_xor_si128 (w[2], LOAD_data_ii(0));
do
{
MM_OP_m (_mm_aesdec_si128, w[1])
MM_OP_m (_mm_aesdec_si128, w[0])
w -= 2;
}
while (w != p);
MM_OP_m (_mm_aesdec_si128, w[1])
MM_OP_m (_mm_aesdeclast_si128, w[0])
MM_XOR (m, iv)
LOAD_data(iv, 0)
STORE_data(m, 0)
}
p[-2] = iv;
}
AES_FUNC_START2 (AesCtr_Code_HW)
{
__m128i *p = (__m128i *)(void *)ivAes;
__m128i *data = (__m128i *)(void *)data8;
__m128i ctr = *p;
const UInt32 numRoundsMinus2 = *(const UInt32 *)(p + 1) * 2 - 1;
const __m128i *dataEnd;
const __m128i >
p += 2;
WIDE_LOOP_START
{
const __m128i *w = p;
UInt32 r = numRoundsMinus2;
WOP (DECLARE_VAR)
WOP (CTR_START)
WOP_KEY (AES_XOR, 0)
w += 1;
do
{
WOP_KEY (AES_ENC, 0)
w += 1;
}
while (--r);
WOP_KEY (AES_ENC_LAST, 0)
WOP (CTR_END)
}
WIDE_LOOP_END
SINGLE_LOOP
{
UInt32 numRounds2 = *(const UInt32 *)(p - 2 + 1) - 1;
const __m128i *w = p;
__m128i m;
MM_OP (_mm_add_epi64, ctr, one)
m = _mm_xor_si128 (ctr, p[0]);
w += 1;
do
{
MM_OP_m (_mm_aesenc_si128, w[0])
MM_OP_m (_mm_aesenc_si128, w[1])
w += 2;
}
while (--numRounds2);
MM_OP_m (_mm_aesenc_si128, w[0])
MM_OP_m (_mm_aesenclast_si128, w[1])
CTR_END (m, 0)
}
p[-2] = ctr;
}
#ifdef USE_INTEL_VAES
/*
GCC before 2013-Jun:
<immintrin.h>:
#ifdef __AVX__
#include <avxintrin.h>
#endif
GCC after 2013-Jun:
<immintrin.h>:
#include <avxintrin.h>
CLANG 3.8+:
{
<immintrin.h>:
#if !defined(_MSC_VER) || defined(__AVX__)
#include <avxintrin.h>
#endif
if (the compiler is clang for Windows and if global arch is not set for __AVX__)
[ if (defined(_MSC_VER) && !defined(__AVX__)) ]
{
<immintrin.h> doesn't include <avxintrin.h>
and we have 2 ways to fix it:
1) we can define required __AVX__ before <immintrin.h>
or
2) we can include <avxintrin.h> after <immintrin.h>
}
}
If we include <avxintrin.h> manually for GCC/CLANG, it's
required that <immintrin.h> must be included before <avxintrin.h>.
*/
/*
#if defined(__clang__) && defined(_MSC_VER)
#define __AVX__
#define __AVX2__
#define __VAES__
#endif
*/
#include <immintrin.h>
#if defined(__clang__) && defined(_MSC_VER)
#if !defined(__AVX__)
#include <avxintrin.h>
#endif
#if !defined(__AVX2__)
#include <avx2intrin.h>
#endif
#if !defined(__VAES__)
#include <vaesintrin.h>
#endif
#endif // __clang__ && _MSC_VER
#ifndef ATTRIB_VAES
#define ATTRIB_VAES
#endif
#define VAES_FUNC_START2(name) \
AES_FUNC_START (name); \
ATTRIB_VAES \
AES_FUNC_START (name)
VAES_FUNC_START2 (AesCbc_Decode_HW_256)
{
__m128i *p = (__m128i *)(void *)ivAes;
__m128i *data = (__m128i *)(void *)data8;
__m128i iv = *p;
const __m128i *dataEnd;
const UInt32 numRounds = *(const UInt32 *)(p + 1) * 2 + 1;
p += 2;
WIDE_LOOP_START_AVX(;)
{
const __m256i *w = keys + numRounds - 2;
WOP (AVX_DECLARE_VAR)
WOP (AVX_LOAD_data)
AVX_WOP_KEY (AVX_AES_XOR, 1)
do
{
AVX_WOP_KEY (AVX_AES_DEC, 0)
w--;
}
while (w != keys);
AVX_WOP_KEY (AVX_AES_DEC_LAST, 0)
AVX_XOR (m0, _mm256_setr_m128i(iv, LOAD_data_ii(0)))
WOP_M1 (AVX_XOR_data_M1)
LOAD_data (iv, NUM_WAYS * 2 - 1)
WOP (AVX_STORE_data)
}
WIDE_LOOP_END_AVX(;)
SINGLE_LOOP
{
const __m128i *w = p - 2 + (size_t)*(const UInt32 *)(p + 1 - 2) * 2;
__m128i m = _mm_xor_si128 (w[2], LOAD_data_ii(0));
do
{
MM_OP_m (_mm_aesdec_si128, w[1])
MM_OP_m (_mm_aesdec_si128, w[0])
w -= 2;
}
while (w != p);
MM_OP_m (_mm_aesdec_si128, w[1])
MM_OP_m (_mm_aesdeclast_si128, w[0])
MM_XOR (m, iv)
LOAD_data(iv, 0)
STORE_data(m, 0)
}
p[-2] = iv;
}
/*
SSE2: _mm_cvtsi32_si128 : movd
AVX: _mm256_setr_m128i : vinsertf128
AVX2: _mm256_add_epi64 : vpaddq ymm, ymm, ymm
_mm256_extracti128_si256 : vextracti128
_mm256_broadcastsi128_si256 : vbroadcasti128
*/
#define AVX_CTR_LOOP_START \
ctr2 = _mm256_setr_m128i(_mm_sub_epi64(ctr, one), ctr); \
two = _mm256_setr_m128i(one, one); \
two = _mm256_add_epi64(two, two); \
// two = _mm256_setr_epi64x(2, 0, 2, 0);
#define AVX_CTR_LOOP_ENC \
ctr = _mm256_extracti128_si256 (ctr2, 1); \
VAES_FUNC_START2 (AesCtr_Code_HW_256)
{
__m128i *p = (__m128i *)(void *)ivAes;
__m128i *data = (__m128i *)(void *)data8;
__m128i ctr = *p;
const UInt32 numRounds = *(const UInt32 *)(p + 1) * 2 + 1;
const __m128i *dataEnd;
const __m128i >
__m256i ctr2, two;
p += 2;
WIDE_LOOP_START_AVX (AVX_CTR_LOOP_START)
{
const __m256i *w = keys;
UInt32 r = numRounds - 2;
WOP (AVX_DECLARE_VAR)
AVX_WOP_KEY (AVX_CTR_START, 0)
w += 1;
do
{
AVX_WOP_KEY (AVX_AES_ENC, 0)
w += 1;
}
while (--r);
AVX_WOP_KEY (AVX_AES_ENC_LAST, 0)
WOP (AVX_CTR_END)
}
WIDE_LOOP_END_AVX (AVX_CTR_LOOP_ENC)
SINGLE_LOOP
{
UInt32 numRounds2 = *(const UInt32 *)(p - 2 + 1) - 1;
const __m128i *w = p;
__m128i m;
MM_OP (_mm_add_epi64, ctr, one)
m = _mm_xor_si128 (ctr, p[0]);
w += 1;
do
{
MM_OP_m (_mm_aesenc_si128, w[0])
MM_OP_m (_mm_aesenc_si128, w[1])
w += 2;
}
while (--numRounds2);
MM_OP_m (_mm_aesenc_si128, w[0])
MM_OP_m (_mm_aesenclast_si128, w[1])
CTR_END (m, 0)
}
p[-2] = ctr;
}
#endif // USE_INTEL_VAES
#else // USE_INTEL_AES
/* no USE_INTEL_AES */
#if defined(Z7_USE_AES_HW_STUB)
// We can compile this file with another C compiler,
// or we can compile asm version.
// So we can generate real code instead of this stub function.
// #if defined(_MSC_VER)
#pragma message("AES HW_SW stub was used")
// #endif
#if !defined(USE_INTEL_VAES) && defined(Z7_USE_VAES_HW_STUB)
#define AES_TYPE_keys UInt32
#define AES_TYPE_data Byte
#endif
#define AES_FUNC_START(name) \
void Z7_FASTCALL name(UInt32 *p, Byte *data, size_t numBlocks) \
#define AES_COMPAT_STUB(name) \
AES_FUNC_START(name); \
AES_FUNC_START(name ## _HW) \
{ name(p, data, numBlocks); }
AES_COMPAT_STUB (AesCbc_Encode)
AES_COMPAT_STUB (AesCbc_Decode)
AES_COMPAT_STUB (AesCtr_Code)
#endif // Z7_USE_AES_HW_STUB
#endif // USE_INTEL_AES
#ifndef USE_INTEL_VAES
#if defined(Z7_USE_VAES_HW_STUB)
// #if defined(_MSC_VER)
#pragma message("VAES HW_SW stub was used")
// #endif
#define VAES_COMPAT_STUB(name) \
void Z7_FASTCALL name ## _256(UInt32 *p, Byte *data, size_t numBlocks); \
void Z7_FASTCALL name ## _256(UInt32 *p, Byte *data, size_t numBlocks) \
{ name((AES_TYPE_keys *)(void *)p, (AES_TYPE_data *)(void *)data, numBlocks); }
VAES_COMPAT_STUB (AesCbc_Decode_HW)
VAES_COMPAT_STUB (AesCtr_Code_HW)
#endif
#endif // ! USE_INTEL_VAES
#elif defined(MY_CPU_ARM_OR_ARM64) && defined(MY_CPU_LE)
#if defined(__ARM_FEATURE_AES) \
|| defined(__ARM_FEATURE_CRYPTO)
#define USE_HW_AES
#else
#if defined(MY_CPU_ARM64) \
|| defined(__ARM_ARCH) && (__ARM_ARCH >= 4) \
|| defined(Z7_MSC_VER_ORIGINAL)
#if defined(__ARM_FP) && \
( defined(Z7_CLANG_VERSION) && (Z7_CLANG_VERSION >= 30800) \
|| defined(__GNUC__) && (__GNUC__ >= 6) \
) \
|| defined(Z7_MSC_VER_ORIGINAL) && (_MSC_VER >= 1910)
#if defined(MY_CPU_ARM64) \
|| !defined(Z7_CLANG_VERSION) \
|| defined(__ARM_NEON) && \
(Z7_CLANG_VERSION < 170000 || \
Z7_CLANG_VERSION > 170001)
#define USE_HW_AES
#endif
#endif
#endif
#endif
#ifdef USE_HW_AES
// #pragma message("=== AES HW === ")
// __ARM_FEATURE_CRYPTO macro is deprecated in favor of the finer grained feature macro __ARM_FEATURE_AES
#if defined(__clang__) || defined(__GNUC__)
#if !defined(__ARM_FEATURE_AES) && \
!defined(__ARM_FEATURE_CRYPTO)
#ifdef MY_CPU_ARM64
#if defined(__clang__)
#define ATTRIB_AES __attribute__((__target__("crypto")))
#else
#define ATTRIB_AES __attribute__((__target__("+crypto")))
#endif
#else
#if defined(__clang__)
#define ATTRIB_AES __attribute__((__target__("armv8-a,aes")))
#else
#define ATTRIB_AES __attribute__((__target__("fpu=crypto-neon-fp-armv8")))
#endif
#endif
#endif
#else
// _MSC_VER
// for arm32
#define _ARM_USE_NEW_NEON_INTRINSICS
#endif
#ifndef ATTRIB_AES
#define ATTRIB_AES
#endif
#if defined(Z7_MSC_VER_ORIGINAL) && defined(MY_CPU_ARM64)
#include <arm64_neon.h>
#else
/*
clang-17.0.1: error : Cannot select: intrinsic %llvm.arm.neon.aese
clang
3.8.1 : __ARM_NEON : defined(__ARM_FEATURE_CRYPTO)
7.0.1 : __ARM_NEON : __ARM_ARCH >= 8 && defined(__ARM_FEATURE_CRYPTO)
11.?.0 : __ARM_NEON && __ARM_FP : __ARM_ARCH >= 8 && defined(__ARM_FEATURE_CRYPTO)
13.0.1 : __ARM_NEON && __ARM_FP : __ARM_ARCH >= 8 && defined(__ARM_FEATURE_AES)
16 : __ARM_NEON && __ARM_FP : __ARM_ARCH >= 8
*/
#if defined(__clang__) && __clang_major__ < 16
#if !defined(__ARM_FEATURE_AES) && \
!defined(__ARM_FEATURE_CRYPTO)
// #pragma message("=== we set __ARM_FEATURE_CRYPTO 1 === ")
Z7_DIAGNOSTIC_IGNORE_BEGIN_RESERVED_MACRO_IDENTIFIER
#define Z7_ARM_FEATURE_CRYPTO_WAS_SET 1
// #if defined(__clang__) && __clang_major__ < 13
#define __ARM_FEATURE_CRYPTO 1
// #else
#define __ARM_FEATURE_AES 1
// #endif
Z7_DIAGNOSTIC_IGNORE_END_RESERVED_MACRO_IDENTIFIER
#endif
#endif // clang
#if defined(__clang__)
#if defined(__ARM_ARCH) && __ARM_ARCH < 8
Z7_DIAGNOSTIC_IGNORE_BEGIN_RESERVED_MACRO_IDENTIFIER
// #pragma message("#define __ARM_ARCH 8")
#undef __ARM_ARCH
#define __ARM_ARCH 8
Z7_DIAGNOSTIC_IGNORE_END_RESERVED_MACRO_IDENTIFIER
#endif
#endif // clang
#include <arm_neon.h>
#if defined(Z7_ARM_FEATURE_CRYPTO_WAS_SET) && \
defined(__ARM_FEATURE_CRYPTO) && \
defined(__ARM_FEATURE_AES)
Z7_DIAGNOSTIC_IGNORE_BEGIN_RESERVED_MACRO_IDENTIFIER
#undef __ARM_FEATURE_CRYPTO
#undef __ARM_FEATURE_AES
#undef Z7_ARM_FEATURE_CRYPTO_WAS_SET
Z7_DIAGNOSTIC_IGNORE_END_RESERVED_MACRO_IDENTIFIER
// #pragma message("=== we undefine __ARM_FEATURE_CRYPTO === ")
#endif
#endif // Z7_MSC_VER_ORIGINAL
typedef uint8x16_t v128;
#define AES_FUNC_START(name) \
void Z7_FASTCALL name(UInt32 *ivAes, Byte *data8, size_t numBlocks)
// void Z7_FASTCALL name(v128 *p, v128 *data, size_t numBlocks)
#define AES_FUNC_START2(name) \
AES_FUNC_START (name); \
ATTRIB_AES \
AES_FUNC_START (name)
#define MM_OP(op, dest, src) dest = op(dest, src);
#define MM_OP_m(op, src) MM_OP(op, m, src)
#define MM_OP1_m(op) m = op(m);
#define MM_XOR( dest, src) MM_OP(veorq_u8, dest, src)
#define MM_XOR_m( src) MM_XOR(m, src)
#define AES_E_m(k) MM_OP_m (vaeseq_u8, k)
#define AES_E_MC_m(k) AES_E_m (k) MM_OP1_m(vaesmcq_u8)
AES_FUNC_START2 (AesCbc_Encode_HW)
{
if (numBlocks == 0)
return;
{
v128 * const p = (v128 *)(void *)ivAes;
v128 *data = (v128 *)(void *)data8;
v128 m = *p;
const UInt32 numRounds2 = *(const UInt32 *)(p + 1);
const v128 *w = p + (size_t)numRounds2 * 2;
const v128 k0 = p[2];
const v128 k1 = p[3];
const v128 k2 = p[4];
const v128 k3 = p[5];
const v128 k4 = p[6];
const v128 k5 = p[7];
const v128 k6 = p[8];
const v128 k7 = p[9];
const v128 k8 = p[10];
const v128 k9 = p[11];
const v128 k_z4 = w[-2];
const v128 k_z3 = w[-1];
const v128 k_z2 = w[0];
const v128 k_z1 = w[1];
const v128 k_z0 = w[2];
// we don't use optimization veorq_u8(*data, k_z0) that can reduce one cycle,
// because gcc/clang compilers are not good for that optimization.
do
{
MM_XOR_m (*data)
AES_E_MC_m (k0)
AES_E_MC_m (k1)
AES_E_MC_m (k2)
AES_E_MC_m (k3)
AES_E_MC_m (k4)
AES_E_MC_m (k5)
if (numRounds2 >= 6)
{
AES_E_MC_m (k6)
AES_E_MC_m (k7)
if (numRounds2 != 6)
{
AES_E_MC_m (k8)
AES_E_MC_m (k9)
}
}
AES_E_MC_m (k_z4)
AES_E_MC_m (k_z3)
AES_E_MC_m (k_z2)
AES_E_m (k_z1)
MM_XOR_m (k_z0)
*data++ = m;
}
while (--numBlocks);
*p = m;
}
}
#define WOP_1(op)
#define WOP_2(op) WOP_1 (op) op (m1, 1)
#define WOP_3(op) WOP_2 (op) op (m2, 2)
#define WOP_4(op) WOP_3 (op) op (m3, 3)
#define WOP_5(op) WOP_4 (op) op (m4, 4)
#define WOP_6(op) WOP_5 (op) op (m5, 5)
#define WOP_7(op) WOP_6 (op) op (m6, 6)
#define WOP_8(op) WOP_7 (op) op (m7, 7)
#define NUM_WAYS 8
#define WOP_M1 WOP_8
#define WOP(op) op (m0, 0) WOP_M1(op)
#define DECLARE_VAR(reg, ii) v128 reg;
#define LOAD_data( reg, ii) reg = data[ii];
#define STORE_data( reg, ii) data[ii] = reg;
#if (NUM_WAYS > 1)
#define XOR_data_M1(reg, ii) MM_XOR (reg, data[ii- 1])
#endif
#define MM_OP_key(op, reg) MM_OP (op, reg, key)
#define AES_D_m(k) MM_OP_m (vaesdq_u8, k)
#define AES_D_IMC_m(k) AES_D_m (k) MM_OP1_m (vaesimcq_u8)
#define AES_XOR( reg, ii) MM_OP_key (veorq_u8, reg)
#define AES_D( reg, ii) MM_OP_key (vaesdq_u8, reg)
#define AES_E( reg, ii) MM_OP_key (vaeseq_u8, reg)
#define AES_D_IMC( reg, ii) AES_D (reg, ii) reg = vaesimcq_u8(reg);
#define AES_E_MC( reg, ii) AES_E (reg, ii) reg = vaesmcq_u8(reg);
#define CTR_START(reg, ii) MM_OP (vaddq_u64, ctr, one) reg = vreinterpretq_u8_u64(ctr);
#define CTR_END( reg, ii) MM_XOR (data[ii], reg)
#define WOP_KEY(op, n) { \
const v128 key = w[n]; \
WOP(op) }
#define WIDE_LOOP_START \
dataEnd = data + numBlocks; \
if (numBlocks >= NUM_WAYS) \
{ dataEnd -= NUM_WAYS; do { \
#define WIDE_LOOP_END \
data += NUM_WAYS; \
} while (data <= dataEnd); \
dataEnd += NUM_WAYS; } \
#define SINGLE_LOOP \
for (; data < dataEnd; data++)
AES_FUNC_START2 (AesCbc_Decode_HW)
{
v128 *p = (v128 *)(void *)ivAes;
v128 *data = (v128 *)(void *)data8;
v128 iv = *p;
const v128 * const wStart = p + (size_t)*(const UInt32 *)(p + 1) * 2;
const v128 *dataEnd;
p += 2;
WIDE_LOOP_START
{
const v128 *w = wStart;
WOP (DECLARE_VAR)
WOP (LOAD_data)
WOP_KEY (AES_D_IMC, 2)
do
{
WOP_KEY (AES_D_IMC, 1)
WOP_KEY (AES_D_IMC, 0)
w -= 2;
}
while (w != p);
WOP_KEY (AES_D, 1)
WOP_KEY (AES_XOR, 0)
MM_XOR (m0, iv)
WOP_M1 (XOR_data_M1)
LOAD_data(iv, NUM_WAYS - 1)
WOP (STORE_data)
}
WIDE_LOOP_END
SINGLE_LOOP
{
const v128 *w = wStart;
v128 m; LOAD_data(m, 0)
AES_D_IMC_m (w[2])
do
{
AES_D_IMC_m (w[1])
AES_D_IMC_m (w[0])
w -= 2;
}
while (w != p);
AES_D_m (w[1])
MM_XOR_m (w[0])
MM_XOR_m (iv)
LOAD_data(iv, 0)
STORE_data(m, 0)
}
p[-2] = iv;
}
AES_FUNC_START2 (AesCtr_Code_HW)
{
v128 *p = (v128 *)(void *)ivAes;
v128 *data = (v128 *)(void *)data8;
uint64x2_t ctr = vreinterpretq_u64_u8(*p);
const v128 * const wEnd = p + (s
663E
ize_t)*(const UInt32 *)(p + 1) * 2;
const v128 *dataEnd;
// the bug in clang:
// __builtin_neon_vsetq_lane_i64(__s0, (int8x16_t)__s1, __p2);
#if defined(__clang__) && (__clang_major__ <= 9)
#pragma GCC diagnostic ignored "-Wvector-conversion"
#endif
const uint64x2_t vdupq_n_u64(0), 0);
p += 2;
WIDE_LOOP_START
{
const v128 *w = p;
WOP (DECLARE_VAR)
WOP (CTR_START)
do
{
WOP_KEY (AES_E_MC, 0)
WOP_KEY (AES_E_MC, 1)
w += 2;
}
while (w != wEnd);
WOP_KEY (AES_E_MC, 0)
WOP_KEY (AES_E, 1)
WOP_KEY (AES_XOR, 2)
WOP (CTR_END)
}
WIDE_LOOP_END
SINGLE_LOOP
{
const v128 *w = p;
v128 m;
CTR_START (m, 0)
do
{
AES_E_MC_m (w[0])
AES_E_MC_m (w[1])
w += 2;
}
while (w != wEnd);
AES_E_MC_m (w[0])
AES_E_m (w[1])
MM_XOR_m (w[2])
CTR_END (m, 0)
}
p[-2] = vreinterpretq_u8_u64(ctr);
}
#endif // USE_HW_AES
#endif // MY_CPU_ARM_OR_ARM64
#undef NUM_WAYS
#undef WOP_M1
#undef WOP
#undef DECLARE_VAR
#undef LOAD_data
#undef STORE_data
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