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Introduced pscatter/pgather packet primitives. They will be used to optimize the loop peeling code of the block-panel matrix multiplication kernel.

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Benoit Steiner
2014-03-27 16:03:03 -07:00
parent 729363114f
commit ee86679096
2 changed files with 43 additions and 2 deletions
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6
Eigen/src/Core/GenericPacketMath.h
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@@ -217,6 +217,12 @@ template<typename Scalar, typename Packet> EIGEN_DEVICE_FUNC inline void pstore(
/** \internal copy the packet \a from to \a *to, (un-aligned store) */
template<typename Scalar, typename Packet> EIGEN_DEVICE_FUNC inline void pstoreu(Scalar* to, const Packet& from)
{ (*to) = from; }
template<typename Scalar, typename Packet> EIGEN_DEVICE_FUNC inline Packet pgather(const Scalar* from, int /*stride*/)
{ return ploadu<Packet>(from); }
template<typename Scalar, typename Packet> EIGEN_DEVICE_FUNC inline void pscatter(Scalar* to, const Packet& from, int /*stride*/)
{ (*to) = from; }
/** \internal tries to do cache prefetching of \a addr */