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/MSA/Complex.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'Eigen/src/Core/arch/MSA/Complex.h') diff --git a/Eigen/src/Core/arch/MSA/Complex.h b/Eigen/src/Core/arch/MSA/Complex.h index 9a45cf51e..fa64d3564 100644 --- a/Eigen/src/Core/arch/MSA/Complex.h +++ b/Eigen/src/Core/arch/MSA/Complex.h @@ -127,7 +127,7 @@ struct packet_traits > : default_packet_traits { template <> struct unpacket_traits { typedef std::complex type; - enum { size = 2, alignment = Aligned16 }; + enum { size = 2, alignment = Aligned16, vectorizable=true }; typedef Packet2cf half; }; @@ -500,7 +500,7 @@ struct packet_traits > : default_packet_traits { template <> struct unpacket_traits { typedef std::complex type; - enum { size = 1, alignment = Aligned16 }; + enum { size = 1, alignment = Aligned16, vectorizable=true }; typedef Packet1cd half; }; -- cgit v1.2.3