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Specialize single word UnpackXMM

pull/676/head
Jeffrey Walton 2018-06-19 21:35:44 -04:00
parent 5e41d5d9b6
commit 1fd8d612ea
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GPG Key ID: B36AB348921B1838
1 changed files with 28 additions and 2 deletions
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30
cham-simd.cpp
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@ -121,7 +121,33 @@ inline __m128i UnpackXMM<3>(__m128i a, __m128i b, __m128i c, __m128i d)
template <unsigned int IDX>
inline __m128i UnpackXMM(__m128i v)
{
return UnpackXMM<IDX>(v, v, v, v);
// Should not be instantiated
CRYPTOPP_ASSERT(0);;
return _mm_setzero_si128();
}
template <>
inline __m128i UnpackXMM<0>(__m128i v)
{
return _mm_shuffle_epi8(v, _mm_set_epi8(0,1,2,3, 0,1,2,3, 0,1,2,3, 0,1,2,3));
}
template <>
inline __m128i UnpackXMM<1>(__m128i v)
{
return _mm_shuffle_epi8(v, _mm_set_epi8(4,5,6,7, 4,5,6,7, 4,5,6,7, 4,5,6,7));
}
template <>
inline __m128i UnpackXMM<2>(__m128i v)
{
return _mm_shuffle_epi8(v, _mm_set_epi8(8,9,10,11, 8,9,10,11, 8,9,10,11, 8,9,10,11));
}
template <>
inline __m128i UnpackXMM<3>(__m128i v)
{
return _mm_shuffle_epi8(v, _mm_set_epi8(12,13,14,15, 12,13,14,15, 12,13,14,15, 12,13,14,15));
}
template <unsigned int IDX>
@ -133,7 +159,7 @@ inline __m128i RepackXMM(__m128i a, __m128i b, __m128i c, __m128i d)
template <unsigned int IDX>
inline __m128i RepackXMM(__m128i v)
{
return RepackXMM<IDX>(v, v, v, v);
return UnpackXMM<IDX>(v);
}
inline void GCC_NO_UBSAN CHAM128_Enc_Block(__m128i &block0,