devtools/eigen
1
0
Fork 0
mirror of https://gitlab.com/libeigen/eigen.git synced 2026-04-10 11:34:33 +08:00
Code Issues Packages Projects Releases Wiki Activity

removed the packet specializations of some functors

Browse Source 
(GCC generates better code without those "optimizations")
This commit is contained in:
Gael Guennebaud
2008-07-31 21:03:11 +00:00
parent 842c4f8bfa
commit b32b186c14
5 changed files with 189 additions and 166 deletions
Download Patch File Download Diff File Expand all files Collapse all files

20
Eigen/src/Array/Functors.h
View File

@@ -25,19 +25,21 @@
#ifndef EIGEN_ARRAY_FUNCTORS_H
#define EIGEN_ARRAY_FUNCTORS_H
/** \internal
* \array_module
*
* \brief Template functor to add a scalar to a fixed other one
*
* \sa class CwiseUnaryOp, Array::operator+
*/
/* If you wonder why doing the ei_pset1() in packetOp() is an optimization check ei_scalar_multiple_op */
template<typename Scalar>
struct ei_scalar_add_op<Scalar,true> {
struct ei_scalar_add_op {
typedef typename ei_packet_traits<Scalar>::type PacketScalar;
inline ei_scalar_add_op(const Scalar& other) : m_other(ei_pset1(other)) { }
inline Scalar operator() (const Scalar& a) const { return a + ei_pfirst(m_other); }
inline const PacketScalar packetOp(const PacketScalar& a) const
{ return ei_padd(a, m_other); }
const PacketScalar m_other;
};
template<typename Scalar>
struct ei_scalar_add_op<Scalar,false> {
inline ei_scalar_add_op(const Scalar& other) : m_other(other) { }
inline Scalar operator() (const Scalar& a) const { return a + m_other; }
inline const PacketScalar packetOp(const PacketScalar& a) const
{ return ei_padd(a, ei_pset1(m_other)); }
const Scalar m_other;
};
template<typename Scalar>