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Add generic PacketMath implementation of the Error Function (erf).

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This commit is contained in:
Rasmus Munk Larsen
2019-09-19 12:48:30 -07:00
parent e02d429637
commit 6de5ed08d8
20 changed files with 265 additions and 90 deletions
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14
Eigen/src/Core/arch/ZVector/MathFunctions.h
View File

@@ -225,6 +225,20 @@ Packet4f prsqrt<Packet4f>(const Packet4f& x) {
return res;
}
// Hyperbolic Tangent function.
template <>
EIGEN_DEFINE_FUNCTION_ALLOWING_MULTIPLE_DEFINITIONS EIGEN_UNUSED Packet4f
ptanh<Packet4f>(const Packet4f& x) {
return internal::generic_fast_tanh_float(x);
}
// Error function.
template <>
EIGEN_DEFINE_FUNCTION_ALLOWING_MULTIPLE_DEFINITIONS EIGEN_UNUSED Packet4f
perf<Packet4f>(const Packet4f& x) {
return internal::generic_fast_erf_float(x);
}
} // end namespace internal
} // end namespace Eigen

32
Eigen/src/Core/arch/ZVector/PacketMath.h
View File

@@ -173,33 +173,35 @@ template<> struct packet_traits<int> : default_packet_traits
};
};
template<> struct packet_traits<float> : default_packet_traits
{
template <>
struct packet_traits<float> : default_packet_traits {
typedef Packet4f type;
typedef Packet4f half;
enum {
Vectorizable = 1,
AlignedOnScalar = 1,
size=4,
size = 4,
HasHalfPacket = 0,
HasAdd = 1,
HasSub = 1,
HasMul = 1,
HasDiv = 1,
HasMin = 1,
HasMax = 1,
HasAbs = 1,
HasSin = 0,
HasCos = 0,
HasLog = 0,
HasAdd = 1,
HasSub = 1,
HasMul = 1,
HasDiv = 1,
HasMin = 1,
HasMax = 1,
HasAbs = 1,
HasSin = 0,
HasCos = 0,
HasLog = 0,
#if !defined(__ARCH__) || (defined(__ARCH__) && __ARCH__ >= 12)
HasExp = 0,
HasExp = 0,
#else
HasExp = 1,
HasExp = 1,
#endif
HasSqrt = 1,
HasRsqrt = 1,
HasTanh = 1,
HasErf = 1,
HasRound = 1,
HasFloor = 1,
HasCeil = 1,