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1)provide a better generic paddsub op implementation

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2)make paddsub op support the Packet2cf/Packet4f/Packet2f in NEON
3)make paddsub op support the Packet2cf/Packet4f in SSE
This commit is contained in:
Guoqiang QI
2021-01-13 22:54:03 +00:00
committed by Rasmus Munk Larsen
parent 352f1422d3
commit 38ae5353ab
10 changed files with 115 additions and 40 deletions
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6
Eigen/src/Core/GenericPacketMath.h
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@@ -407,6 +407,12 @@ pabs(const unsigned long& a) { return a; }
template<> EIGEN_DEVICE_FUNC inline unsigned long long
pabs(const unsigned long long& a) { return a; }
/** \internal \returns the addsub value of \a a,b */
template<typename Packet> EIGEN_DEVICE_FUNC inline Packet
paddsub(const Packet& a, const Packet& b) {
return pselect(peven_mask(a), padd(a, b), psub(a, b));
}
/** \internal \returns the phase angle of \a a */
template<typename Packet> EIGEN_DEVICE_FUNC inline Packet
parg(const Packet& a) { using numext::arg; return arg(a); }