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* enable vectorization of sin, cos, etc. by default with an option to

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disable them (-DEIGEN_FAST_MATH=0)
* add a specialization of MatrixBase::operator*(RealScalar) for fast
  "matrix of complex" times scalar products (even more useful for
  autodiff scalar types)
This commit is contained in:
Gael Guennebaud
2009-03-26 12:50:24 +00:00
parent 62de40f8bb
commit ce5669dbf9
8 changed files with 92 additions and 11 deletions
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4
Eigen/src/Array/CwiseOperators.h
View File

@@ -82,7 +82,7 @@ Cwise<ExpressionType>::log() const
* Example: \include Cwise_cos.cpp
* Output: \verbinclude Cwise_cos.out
*
* \sa sin(), exp()
* \sa sin(), exp(), EIGEN_FAST_MATH
*/
template<typename ExpressionType>
inline const EIGEN_CWISE_UNOP_RETURN_TYPE(ei_scalar_cos_op)
@@ -99,7 +99,7 @@ Cwise<ExpressionType>::cos() const
* Example: \include Cwise_sin.cpp
* Output: \verbinclude Cwise_sin.out
*
* \sa cos(), exp()
* \sa cos(), exp(), EIGEN_FAST_MATH
*/
template<typename ExpressionType>
inline const EIGEN_CWISE_UNOP_RETURN_TYPE(ei_scalar_sin_op)

28
Eigen/src/Array/Functors.h
View File

@@ -73,10 +73,12 @@ struct ei_functor_traits<ei_scalar_sqrt_op<Scalar> >
*/
template<typename Scalar> struct ei_scalar_exp_op EIGEN_EMPTY_STRUCT {
inline const Scalar operator() (const Scalar& a) const { return ei_exp(a); }
typedef typename ei_packet_traits<Scalar>::type Packet;
inline Packet packetOp(const Packet& a) const { return ei_pexp(a); }
};
template<typename Scalar>
struct ei_functor_traits<ei_scalar_exp_op<Scalar> >
{ enum { Cost = 5 * NumTraits<Scalar>::MulCost, PacketAccess = false }; };
{ enum { Cost = 5 * NumTraits<Scalar>::MulCost, PacketAccess = ei_packet_traits<Scalar>::HasExp }; };
/** \internal
*
@@ -88,10 +90,12 @@ struct ei_functor_traits<ei_scalar_exp_op<Scalar> >
*/
template<typename Scalar> struct ei_scalar_log_op EIGEN_EMPTY_STRUCT {
inline const Scalar operator() (const Scalar& a) const { return ei_log(a); }
typedef typename ei_packet_traits<Scalar>::type Packet;
inline Packet packetOp(const Packet& a) const { return ei_plog(a); }
};
template<typename Scalar>
struct ei_functor_traits<ei_scalar_log_op<Scalar> >
{ enum { Cost = 5 * NumTraits<Scalar>::MulCost, PacketAccess = false }; };
{ enum { Cost = 5 * NumTraits<Scalar>::MulCost, PacketAccess = ei_packet_traits<Scalar>::HasLog }; };
/** \internal
*
@@ -102,11 +106,18 @@ struct ei_functor_traits<ei_scalar_log_op<Scalar> >
* \sa class CwiseUnaryOp, Cwise::cos()
*/
template<typename Scalar> struct ei_scalar_cos_op EIGEN_EMPTY_STRUCT {
inline const Scalar operator() (const Scalar& a) const { return ei_cos(a); }
inline Scalar operator() (const Scalar& a) const { return ei_cos(a); }
typedef typename ei_packet_traits<Scalar>::type Packet;
inline Packet packetOp(const Packet& a) const { return ei_pcos(a); }
};
template<typename Scalar>
struct ei_functor_traits<ei_scalar_cos_op<Scalar> >
{ enum { Cost = 5 * NumTraits<Scalar>::MulCost, PacketAccess = false }; };
{
enum {
Cost = 5 * NumTraits<Scalar>::MulCost,
PacketAccess = ei_packet_traits<Scalar>::HasCos && EIGEN_FAST_MATH
};
};
/** \internal
*
@@ -118,10 +129,17 @@ struct ei_functor_traits<ei_scalar_cos_op<Scalar> >
*/
template<typename Scalar> struct ei_scalar_sin_op EIGEN_EMPTY_STRUCT {
inline const Scalar operator() (const Scalar& a) const { return ei_sin(a); }
typedef typename ei_packet_traits<Scalar>::type Packet;
inline Packet packetOp(const Packet& a) const { return ei_psin(a); }
};
template<typename Scalar>
struct ei_functor_traits<ei_scalar_sin_op<Scalar> >
{ enum { Cost = 5 * NumTraits<Scalar>::MulCost, PacketAccess = false }; };
{
enum {
Cost = 5 * NumTraits<Scalar>::MulCost,
PacketAccess = ei_packet_traits<Scalar>::HasSin && EIGEN_FAST_MATH
};
};
/** \internal
*