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Remove unneeded temp[] array

pull/548/head
Jeffrey Walton 2017-12-05 20:35:57 -05:00
parent 490701acca
commit e9654192f2
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GPG Key ID: B36AB348921B1838
2 changed files with 24 additions and 28 deletions
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26
simon-simd.cpp
View File

@ -1422,7 +1422,7 @@ inline void SIMON64_Enc_Block(__m128i &block0, __m128i &block1,
// Rearrange the data for vectorization. The incoming data was read from
// a big-endian byte array. Depending on the number of blocks it needs to
// be permuted to the following. Thanks to Peter Cordes for help with the
// SSE permutes below.
// SSE permutes below.
// [A1 A2 A3 A4][B1 B2 B3 B4] ... => [A1 A3 B1 B3][A2 A4 B2 B4] ...
const __m128 t0 = _mm_castsi128_ps(block0);
const __m128 t1 = _mm_castsi128_ps(block1);
@ -1464,7 +1464,7 @@ inline void SIMON64_Dec_Block(__m128i &block0, __m128i &block1,
// Rearrange the data for vectorization. The incoming data was read from
// a big-endian byte array. Depending on the number of blocks it needs to
// be permuted to the following. Thanks to Peter Cordes for help with the
// SSE permutes below.
// SSE permutes below.
// [A1 A2 A3 A4][B1 B2 B3 B4] ... => [A1 A3 B1 B3][A2 A4 B2 B4] ...
const __m128 t0 = _mm_castsi128_ps(block0);
const __m128 t1 = _mm_castsi128_ps(block1);
@ -1507,7 +1507,7 @@ inline void SIMON64_Enc_4_Blocks(__m128i &block0, __m128i &block1, __m128i &bloc
// Rearrange the data for vectorization. The incoming data was read from
// a big-endian byte array. Depending on the number of blocks it needs to
// be permuted to the following. Thanks to Peter Cordes for help with the
// SSE permutes below.
// SSE permutes below.
// [A1 A2 A3 A4][B1 B2 B3 B4] ... => [A1 A3 B1 B3][A2 A4 B2 B4] ...
const __m128 t0 = _mm_castsi128_ps(block0);
const __m128 t1 = _mm_castsi128_ps(block1);
@ -1563,7 +1563,7 @@ inline void SIMON64_Dec_4_Blocks(__m128i &block0, __m128i &block1, __m128i &bloc
// Rearrange the data for vectorization. The incoming data was read from
// a big-endian byte array. Depending on the number of blocks it needs to
// be permuted to the following. Thanks to Peter Cordes for help with the
// SSE permutes below.
// SSE permutes below.
// [A1 A2 A3 A4][B1 B2 B3 B4] ... => [A1 A3 B1 B3][A2 A4 B2 B4] ...
const __m128 t0 = _mm_castsi128_ps(block0);
const __m128 t1 = _mm_castsi128_ps(block1);
@ -1629,7 +1629,6 @@ inline size_t SIMON64_AdvancedProcessBlocks_SSE41(F2 func2, F4 func4,
size_t inIncrement = (flags & (BlockTransformation::BT_InBlockIsCounter|BlockTransformation::BT_DontIncrementInOutPointers)) ? 0 : xmmBlockSize;
size_t xorIncrement = xorBlocks ? xmmBlockSize : 0;
size_t outIncrement = (flags & BlockTransformation::BT_DontIncrementInOutPointers) ? 0 : xmmBlockSize;
CRYPTOPP_ALIGN_DATA(16) word32 temp[4];
if (flags & BlockTransformation::BT_ReverseDirection)
{
@ -1728,15 +1727,14 @@ inline size_t SIMON64_AdvancedProcessBlocks_SSE41(F2 func2, F4 func4,
while (length >= blockSize)
{
// temp[] is an aligned array
std::memcpy(temp, inBlocks, 8);
__m128i block, zero = _mm_setzero_si128();
block = _mm_load_si128(CONST_M128_CAST(temp));
block = _mm_xor_si128(block, _mm_castpd_si128(
_mm_loaddup_pd(reinterpret_cast<const double*>(inBlocks))));
if (flags & BlockTransformation::BT_XorInput)
{
std::memcpy(temp, xorBlocks, 8);
block = _mm_xor_si128(block, _mm_load_si128(CONST_M128_CAST(temp)));
block = _mm_xor_si128(block, _mm_castpd_si128(
_mm_loaddup_pd(reinterpret_cast<const double*>(xorBlocks))));
}
if (flags & BlockTransformation::BT_InBlockIsCounter)
@ -1746,12 +1744,12 @@ inline size_t SIMON64_AdvancedProcessBlocks_SSE41(F2 func2, F4 func4,
if (xorBlocks && !(flags & BlockTransformation::BT_XorInput))
{
std::memcpy(temp, xorBlocks, 8);
block = _mm_xor_si128(block, _mm_load_si128(CONST_M128_CAST(temp)));
block = _mm_xor_si128(block, _mm_castpd_si128(
_mm_loaddup_pd(reinterpret_cast<const double*>(xorBlocks))));
}
_mm_store_si128(M128_CAST(temp), block);
std::memcpy(outBlocks, temp, 8);
const word64 temp = _mm_cvtsi128_si64x(block);
std::memcpy(outBlocks, &temp, 8);
inBlocks += inIncrement;
outBlocks += outIncrement;

26
speck-simd.cpp
View File

@ -1328,7 +1328,7 @@ inline void SPECK64_Enc_Block(__m128i &block0, __m128i &block1,
// Rearrange the data for vectorization. The incoming data was read from
// a big-endian byte array. Depending on the number of blocks it needs to
// be permuted to the following. Thanks to Peter Cordes for help with the
// SSE permutes below.
// SSE permutes below.
// [A1 A2 A3 A4][B1 B2 B3 B4] ... => [A1 A3 B1 B3][A2 A4 B2 B4] ...
const __m128 t0 = _mm_castsi128_ps(block0);
const __m128 t1 = _mm_castsi128_ps(block1);
@ -1365,7 +1365,7 @@ inline void SPECK64_Dec_Block(__m128i &block0, __m128i &block1,
// Rearrange the data for vectorization. The incoming data was read from
// a big-endian byte array. Depending on the number of blocks it needs to
// be permuted to the following. Thanks to Peter Cordes for help with the
// SSE permutes below.
// SSE permutes below.
// [A1 A2 A3 A4][B1 B2 B3 B4] ... => [A1 A3 B1 B3][A2 A4 B2 B4] ...
const __m128 t0 = _mm_castsi128_ps(block0);
const __m128 t1 = _mm_castsi128_ps(block1);
@ -1402,7 +1402,7 @@ inline void SPECK64_Enc_4_Blocks(__m128i &block0, __m128i &block1, __m128i &bloc
// Rearrange the data for vectorization. The incoming data was read from
// a big-endian byte array. Depending on the number of blocks it needs to
// be permuted to the following. Thanks to Peter Cordes for help with the
// SSE permutes below.
// SSE permutes below.
// [A1 A2 A3 A4][B1 B2 B3 B4] ... => [A1 A3 B1 B3][A2 A4 B2 B4] ...
const __m128 t0 = _mm_castsi128_ps(block0);
const __m128 t1 = _mm_castsi128_ps(block1);
@ -1455,7 +1455,7 @@ inline void SPECK64_Dec_4_Blocks(__m128i &block0, __m128i &block1, __m128i &bloc
// Rearrange the data for vectorization. The incoming data was read from
// a big-endian byte array. Depending on the number of blocks it needs to
// be permuted to the following. Thanks to Peter Cordes for help with the
// SSE permutes below.
// SSE permutes below.
// [A1 A2 A3 A4][B1 B2 B3 B4] ... => [A1 A3 B1 B3][A2 A4 B2 B4] ...
const __m128 t0 = _mm_castsi128_ps(block0);
const __m128 t1 = _mm_castsi128_ps(block1);
@ -1517,7 +1517,6 @@ inline size_t SPECK64_AdvancedProcessBlocks_SSE41(F2 func2, F4 func4,
size_t inIncrement = (flags & (BlockTransformation::BT_InBlockIsCounter|BlockTransformation::BT_DontIncrementInOutPointers)) ? 0 : xmmBlockSize;
size_t xorIncrement = xorBlocks ? xmmBlockSize : 0;
size_t outIncrement = (flags & BlockTransformation::BT_DontIncrementInOutPointers) ? 0 : xmmBlockSize;
CRYPTOPP_ALIGN_DATA(16) word32 temp[4];
if (flags & BlockTransformation::BT_ReverseDirection)
{
@ -1616,15 +1615,14 @@ inline size_t SPECK64_AdvancedProcessBlocks_SSE41(F2 func2, F4 func4,
while (length >= blockSize)
{
// temp[] is an aligned array
std::memcpy(temp, inBlocks, 8);
__m128i block, zero = _mm_setzero_si128();
block = _mm_load_si128(CONST_M128_CAST(temp));
block = _mm_xor_si128(block, _mm_castpd_si128(
_mm_loaddup_pd(reinterpret_cast<const double*>(inBlocks))));
if (flags & BlockTransformation::BT_XorInput)
{
std::memcpy(temp, xorBlocks, 8);
block = _mm_xor_si128(block, _mm_load_si128(CONST_M128_CAST(temp)));
block = _mm_xor_si128(block, _mm_castpd_si128(
_mm_loaddup_pd(reinterpret_cast<const double*>(xorBlocks))));
}
if (flags & BlockTransformation::BT_InBlockIsCounter)
@ -1634,12 +1632,12 @@ inline size_t SPECK64_AdvancedProcessBlocks_SSE41(F2 func2, F4 func4,
if (xorBlocks && !(flags & BlockTransformation::BT_XorInput))
{
std::memcpy(temp, xorBlocks, 8);
block = _mm_xor_si128(block, _mm_load_si128(CONST_M128_CAST(temp)));
block = _mm_xor_si128(block, _mm_castpd_si128(
_mm_loaddup_pd(reinterpret_cast<const double*>(xorBlocks))));
}
_mm_store_si128(M128_CAST(temp), block);
std::memcpy(outBlocks, temp, 8);
const word64 temp = _mm_cvtsi128_si64x(block);
std::memcpy(outBlocks, &temp, 8);
inBlocks += inIncrement;
outBlocks += outIncrement;