mirror/eigen
2
0
Fork 0
mirror of https://gitlab.com/libeigen/eigen.git synced 2025-01-30 17:40:05 +08:00
Code Issues Packages Projects Releases Wiki Activity

explicitely disable vectorization for mixed coeff based products

Browse Source
This commit is contained in:
Gael Guennebaud 2010-07-19 23:28:57 +02:00
parent 08c841eb87
commit 8b0b121c9e
1 changed files with 4 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
Eigen/src/Core/products/CoeffBasedProduct.h
View File

@ -73,6 +73,8 @@ struct ei_traits<CoeffBasedProduct<LhsNested,RhsNested,NestingFlags> >
LhsRowMajor = LhsFlags & RowMajorBit,
RhsRowMajor = RhsFlags & RowMajorBit,
SameType = ei_is_same_type<typename _LhsNested::Scalar,typename _RhsNested::Scalar>::ret,
CanVectorizeRhs = RhsRowMajor && (RhsFlags & PacketAccessBit)
&& (ColsAtCompileTime == Dynamic
|| ( (ColsAtCompileTime % ei_packet_traits<Scalar>::size) == 0
@ -94,7 +96,8 @@ struct ei_traits<CoeffBasedProduct<LhsNested,RhsNested,NestingFlags> >
Flags = ((unsigned int)(LhsFlags | RhsFlags) & HereditaryBits & ~RowMajorBit)
| (EvalToRowMajor ? RowMajorBit : 0)
| NestingFlags
| (CanVectorizeLhs || CanVectorizeRhs ? PacketAccessBit : 0),
// TODO enable vectorization for mixed types
| (SameType && (CanVectorizeLhs || CanVectorizeRhs) ? PacketAccessBit : 0),
CoeffReadCost = InnerSize == Dynamic ? Dynamic
: InnerSize * (NumTraits<Scalar>::MulCost + LhsCoeffReadCost + RhsCoeffReadCost)