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Pick full packet unconditionally when EIGEN_UNALIGNED_VECTORIZE

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Francesco Mazzoli 2020-01-13 16:15:30 +01:00 committed by Gael Guennebaud
parent 5ca10480b0
commit 44df2109c8
1 changed files with 12 additions and 0 deletions
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12
Eigen/src/Core/util/XprHelper.h
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@ -194,8 +194,20 @@ template<typename T> struct unpacket_traits
}; };
}; };
// If we vectorize regardless of alignment, always pick the full-sized packet,
// if we have enough data to process.
//
// Otherwise, pick the packet size we know is going to work with the alignment
// of the given data. See
// <https://gitlab.com/libeigen/eigen/merge_requests/46#note_270578113> for more
// information.
#if EIGEN_UNALIGNED_VECTORIZE
template<int Size, typename PacketType, template<int Size, typename PacketType,
bool Stop = Size==Dynamic || Size >= unpacket_traits<PacketType>::size || is_same<PacketType,typename unpacket_traits<PacketType>::half>::value> bool Stop = Size==Dynamic || Size >= unpacket_traits<PacketType>::size || is_same<PacketType,typename unpacket_traits<PacketType>::half>::value>
#else
template<int Size, typename PacketType,
bool Stop = Size==Dynamic || (Size%unpacket_traits<PacketType>::size)==0 || is_same<PacketType,typename unpacket_traits<PacketType>::half>::value>
#endif
struct find_best_packet_helper; struct find_best_packet_helper;
template< int Size, typename PacketType> template< int Size, typename PacketType>