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

Move eigen_packet_wrapper to GenericPacketMath.h and use it for SSE/AVX/AVX512 as it is already used for NEON.

Browse Source 
This will allow us to define multiple packet types backed by the same vector type, e.g., __m128i.
Use this machanism to define packets for half and clean up the packet op implementations.
This commit is contained in:
Rasmus Munk Larsen
2020-04-15 18:17:19 +00:00
parent 4aae8ac693
commit 5ab87d8aba
5 changed files with 134 additions and 205 deletions
Download Patch File Download Diff File Expand all files Collapse all files

16
Eigen/src/Core/GenericPacketMath.h
View File

@@ -137,6 +137,22 @@ template <typename Src, typename Tgt> struct type_casting_traits {
};
};
/** \internal Wrapper to ensure that multiple packet types can map to the same
same underlying vector type. */
template<typename T, int unique_id = 0>
struct eigen_packet_wrapper
{
EIGEN_ALWAYS_INLINE operator T&() { return m_val; }
EIGEN_ALWAYS_INLINE operator const T&() const { return m_val; }
EIGEN_ALWAYS_INLINE eigen_packet_wrapper() {}
EIGEN_ALWAYS_INLINE eigen_packet_wrapper(const T &v) : m_val(v) {}
EIGEN_ALWAYS_INLINE eigen_packet_wrapper& operator=(const T &v) {
m_val = v;
return *this;
}
T m_val;
};
/** \internal \returns static_cast<TgtType>(a) (coeff-wise) */
template <typename SrcPacket, typename TgtPacket>