From e763fcd09e620300226ca22d152b94867123b603 Mon Sep 17 00:00:00 2001 From: Gustavo Lima Chaves Date: Wed, 19 Dec 2018 14:24:44 -0800 Subject: Introducing "vectorized" byte on unpacket_traits structs This is a preparation to a change on gebp_traits, where a new template argument will be introduced to dictate the packet size, so it won't be bound to the current/max packet size only anymore. By having packet types defined early on gebp_traits, one has now to act on packet types, not scalars anymore, for the enum values defined on that class. One approach for reaching the vectorizable/size properties one needs there could be getting the packet's scalar again with unpacket_traits<>, then the size/Vectorizable enum entries from packet_traits<>. It turns out guards like "#ifndef EIGEN_VECTORIZE_AVX512" at AVX/PacketMath.h will hide smaller packet variations of packet_traits<> for some types (and it makes sense to keep that). In other words, one can't go back to the scalar and create a new PacketType, as this will always lead to the maximum packet type for the architecture. The less costly/invasive solution for that, thus, is to add the vectorizable info on every unpacket_traits struct as well. --- Eigen/src/Core/arch/ZVector/Complex.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'Eigen/src/Core/arch/ZVector/Complex.h') diff --git a/Eigen/src/Core/arch/ZVector/Complex.h b/Eigen/src/Core/arch/ZVector/Complex.h index 95aba428f..167c3ee4c 100644 --- a/Eigen/src/Core/arch/ZVector/Complex.h +++ b/Eigen/src/Core/arch/ZVector/Complex.h @@ -91,8 +91,8 @@ template<> struct packet_traits > : default_packet_traits }; }; -template<> struct unpacket_traits { typedef std::complex type; enum {size=2, alignment=Aligned16}; typedef Packet2cf half; }; -template<> struct unpacket_traits { typedef std::complex type; enum {size=1, alignment=Aligned16}; typedef Packet1cd half; }; +template<> struct unpacket_traits { typedef std::complex type; enum {size=2, alignment=Aligned16, vectorizable=true}; typedef Packet2cf half; }; +template<> struct unpacket_traits { typedef std::complex type; enum {size=1, alignment=Aligned16, vectorizable=true}; typedef Packet1cd half; }; /* Forward declaration */ EIGEN_STRONG_INLINE void ptranspose(PacketBlock& kernel); -- cgit v1.2.3