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for some reason passing the argument by const reference killed the perf

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(in the packet version of sin, cos, exp, lop), so let's pass them by
value. Also, improve the perf of ei_plog by reducing dependencies.
This commit is contained in:
Gael Guennebaud
2009-03-25 18:33:36 +00:00
parent 17860e578c
commit a22ef7e1f3
2 changed files with 38 additions and 30 deletions
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17
Eigen/src/Core/GenericPacketMath.h
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@@ -63,6 +63,15 @@ template<typename T> struct ei_packet_traits : ei_default_packet_traits
{
typedef T type;
enum {size=1};
enum {
HasAdd = 0,
HasSub = 0,
HasMul = 0,
HasNegate = 0,
HasAbs = 0,
HasMin = 0,
HasMax = 0
};
};
/** \internal \returns a + b (coeff-wise) */
@@ -172,16 +181,16 @@ template<typename Packet> inline Packet ei_preverse(const Packet& a)
***************************/
/** \internal \returns the sin of \a a (coeff-wise) */
template<typename Packet> inline Packet ei_psin(const Packet& a) { return ei_sin(a); }
template<typename Packet> inline Packet ei_psin(Packet a) { return ei_sin(a); }
/** \internal \returns the cos of \a a (coeff-wise) */
template<typename Packet> inline Packet ei_pcos(const Packet& a) { return ei_cos(a); }
template<typename Packet> inline Packet ei_pcos(Packet a) { return ei_cos(a); }
/** \internal \returns the exp of \a a (coeff-wise) */
template<typename Packet> inline Packet ei_pexp(const Packet& a) { return ei_exp(a); }
template<typename Packet> inline Packet ei_pexp(Packet a) { return ei_exp(a); }
/** \internal \returns the log of \a a (coeff-wise) */
template<typename Packet> inline Packet ei_plog(const Packet& a) { return ei_log(a); }
template<typename Packet> inline Packet ei_plog(Packet a) { return ei_log(a); }
/***************************************************************************
* The following functions might not have to be overwritten for vectorized types