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implement optimized ploadu for MSVC10: this also fix bad code generation in gebp_kernel :)

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Gael Guennebaud 2011-02-12 16:40:09 +01:00
parent ec7409b16e
commit 9d2bf35a05
1 changed files with 14 additions and 1 deletions
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15
Eigen/src/Core/arch/SSE/PacketMath.h
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@ -222,7 +222,20 @@ template<> EIGEN_STRONG_INLINE Packet2d pload<Packet2d>(const double* from) { E
template<> EIGEN_STRONG_INLINE Packet4i pload<Packet4i>(const int* from) { EIGEN_DEBUG_ALIGNED_LOAD return _mm_load_si128(reinterpret_cast<const Packet4i*>(from)); }
#if defined(_MSC_VER)
template<> EIGEN_STRONG_INLINE Packet4f ploadu<Packet4f>(const float* from) { EIGEN_DEBUG_UNALIGNED_LOAD return _mm_loadu_ps(from); }
template<> EIGEN_STRONG_INLINE Packet4f ploadu<Packet4f>(const float* from) {
EIGEN_DEBUG_UNALIGNED_LOAD
#if (_MSC_VER==1600)
// NOTE Some version of MSVC10 generates bad code when using _mm_loadu_ps
// (i.e., it does not generate an unaligned load!!
// TODO On most architectures this version should also be faster than a single _mm_loadu_ps
// so we could also enable it for MSVC08 but first we have to make this later does not generate crap when doing so...
__m128 res = _mm_loadl_pi(res, (const __m64*)(from));
res = _mm_loadh_pi(res, (const __m64*)(from+2));
return res;
#else
return _mm_loadu_ps(from);
#endif
}
template<> EIGEN_STRONG_INLINE Packet2d ploadu<Packet2d>(const double* from) { EIGEN_DEBUG_UNALIGNED_LOAD return _mm_loadu_pd(from); }
template<> EIGEN_STRONG_INLINE Packet4i ploadu<Packet4i>(const int* from) { EIGEN_DEBUG_UNALIGNED_LOAD return _mm_loadu_si128(reinterpret_cast<const Packet4i*>(from)); }
#else