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add much faster versions of unaligned stores (and slightly faster

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unaligned loads)
This commit is contained in:
Gael Guennebaud 2009-03-03 14:01:30 +00:00
parent c4601314be
commit 3288e9e168
1 changed files with 16 additions and 14 deletions
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26
Eigen/src/Core/arch/SSE/PacketMath.h
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@ -97,23 +97,25 @@ template<> EIGEN_STRONG_INLINE __m128 ei_pload<float>(const float* from) { re
template<> EIGEN_STRONG_INLINE __m128d ei_pload<double>(const double* from) { return _mm_load_pd(from); }
template<> EIGEN_STRONG_INLINE __m128i ei_pload<int>(const int* from) { return _mm_load_si128(reinterpret_cast<const __m128i*>(from)); }
template<> EIGEN_STRONG_INLINE __m128 ei_ploadu<float>(const float* from) { return _mm_loadu_ps(from); }
// template<> EIGEN_STRONG_INLINE __m128 ei_ploadu(const float* from) {
// if (size_t(from)&0xF)
// return _mm_loadu_ps(from);
// else
// return _mm_loadu_ps(from);
// }
template<> EIGEN_STRONG_INLINE __m128d ei_ploadu<double>(const double* from) { return _mm_loadu_pd(from); }
template<> EIGEN_STRONG_INLINE __m128i ei_ploadu<int>(const int* from) { return _mm_loadu_si128(reinterpret_cast<const __m128i*>(from)); }
template<> EIGEN_STRONG_INLINE __m128 ei_ploadu(const float* from) {
__m128 r;
r = _mm_castpd_ps(_mm_load_sd((double*)(from)));
r = _mm_loadh_pi(r, (const __m64*)(from+2));
return r;
}
template<> EIGEN_STRONG_INLINE __m128d ei_ploadu<double>(const double* from) { return _mm_castps_pd(ei_ploadu((const float*)(from))); }
template<> EIGEN_STRONG_INLINE __m128i ei_ploadu<int>(const int* from) { return _mm_castpd_si128(ei_ploadu((const double*)(from))); }
template<> EIGEN_STRONG_INLINE void ei_pstore<float>(float* to, const __m128& from) { _mm_store_ps(to, from); }
template<> EIGEN_STRONG_INLINE void ei_pstore<double>(double* to, const __m128d& from) { _mm_store_pd(to, from); }
template<> EIGEN_STRONG_INLINE void ei_pstore<int>(int* to, const __m128i& from) { _mm_store_si128(reinterpret_cast<__m128i*>(to), from); }
template<> EIGEN_STRONG_INLINE void ei_pstoreu<float>(float* to, const __m128& from) { _mm_storeu_ps(to, from); }
template<> EIGEN_STRONG_INLINE void ei_pstoreu<double>(double* to, const __m128d& from) { _mm_storeu_pd(to, from); }
template<> EIGEN_STRONG_INLINE void ei_pstoreu<int>(int* to, const __m128i& from) { _mm_storeu_si128(reinterpret_cast<__m128i*>(to), from); }
template<> EIGEN_STRONG_INLINE void ei_pstoreu<double>(double* to, const __m128d& from) {
_mm_storel_pd((to), from);
_mm_storeh_pd((to+1), from);
}
template<> EIGEN_STRONG_INLINE void ei_pstoreu<float>(float* to, const __m128& from) { ei_pstoreu((double*)to, _mm_castps_pd(from)); }
template<> EIGEN_STRONG_INLINE void ei_pstoreu<int>(int* to, const __m128i& from) { ei_pstoreu((double*)to, _mm_castsi128_pd(from)); }
#ifdef _MSC_VER
// this fix internal compilation error