diff options
Diffstat (limited to 'Eigen/src/Core/util/XprHelper.h')
| -rw-r--r-- | Eigen/src/Core/util/XprHelper.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/Eigen/src/Core/util/XprHelper.h b/Eigen/src/Core/util/XprHelper.h index 26aa609fe..22f8bdd6c 100644 --- a/Eigen/src/Core/util/XprHelper.h +++ b/Eigen/src/Core/util/XprHelper.h @@ -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, 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; template< int Size, typename PacketType> |