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Add vectorization of Reverse (was more tricky than I thought) and

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simplify the index based functions
This commit is contained in:
Gael Guennebaud
2009-02-06 12:40:38 +00:00
parent 4dc4ab3abb
commit f5d96df800
5 changed files with 65 additions and 95 deletions
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9
Eigen/src/Core/arch/SSE/PacketMath.h
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@@ -100,7 +100,7 @@ template<> EIGEN_STRONG_INLINE __m128 ei_ploadu<float>(const float* from) { r
// template<> EIGEN_STRONG_INLINE __m128 ei_ploadu(const float* from) {
// if (size_t(from)&0xF)
// return _mm_loadu_ps(from);
// else
// else
// return _mm_loadu_ps(from);
// }
template<> EIGEN_STRONG_INLINE __m128d ei_ploadu<double>(const double* from) { return _mm_loadu_pd(from); }
@@ -125,6 +125,13 @@ template<> EIGEN_STRONG_INLINE double ei_pfirst<__m128d>(const __m128d& a) { ret
template<> EIGEN_STRONG_INLINE int ei_pfirst<__m128i>(const __m128i& a) { return _mm_cvtsi128_si32(a); }
#endif
template<> EIGEN_STRONG_INLINE __m128 ei_preverse(const __m128& a)
{ return _mm_shuffle_ps(a,a,0x1B); }
template<> EIGEN_STRONG_INLINE __m128d ei_preverse(const __m128d& a)
{ return _mm_shuffle_pd(a,a,0x1); }
template<> EIGEN_STRONG_INLINE __m128i ei_preverse(const __m128i& a)
{ return _mm_shuffle_epi32(a,0x1B); }
#ifdef __SSE3__
// TODO implement SSE2 versions as well as integer versions
template<> EIGEN_STRONG_INLINE __m128 ei_preduxp<__m128>(const __m128* vecs)