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add vectorization of unary operator-() (the AltiVec version is probably

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broken)
This commit is contained in:
Gael Guennebaud
2009-03-20 10:03:24 +00:00
parent 4bb5221d22
commit fbf415c547
5 changed files with 40 additions and 1 deletions
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8
Eigen/src/Core/Functors.h
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@@ -190,10 +190,16 @@ struct ei_functor_traits<ei_scalar_quotient_op<Scalar> > {
*/
template<typename Scalar> struct ei_scalar_opposite_op EIGEN_EMPTY_STRUCT {
EIGEN_STRONG_INLINE const Scalar operator() (const Scalar& a) const { return -a; }
template<typename PacketScalar>
EIGEN_STRONG_INLINE const PacketScalar packetOp(const PacketScalar& a) const
{ return ei_pnegate(a); }
};
template<typename Scalar>
struct ei_functor_traits<ei_scalar_opposite_op<Scalar> >
{ enum { Cost = NumTraits<Scalar>::AddCost, PacketAccess = false }; };
{ enum {
Cost = NumTraits<Scalar>::AddCost,
PacketAccess = int(ei_packet_traits<Scalar>::size)>1 };
};
/** \internal
* \brief Template functor to compute the absolute value of a scalar