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Fix performance regression in sparse * dense product where "sparse" is an expression

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This commit is contained in:
Gael Guennebaud 2015-09-29 11:11:40 +02:00
parent ceafed519f
commit b2b8c1d41e
1 changed files with 4 additions and 4 deletions
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8
Eigen/src/SparseCore/SparseDenseProduct.h
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@ -160,8 +160,8 @@ struct generic_product_impl<Lhs, Rhs, SparseShape, DenseShape, ProductType>
template<typename Dest>
static void scaleAndAddTo(Dest& dst, const Lhs& lhs, const Rhs& rhs, const Scalar& alpha)
{
typedef typename nested_eval<Lhs,Dynamic>::type LhsNested;
typedef typename nested_eval<Rhs,Dynamic>::type RhsNested;
typedef typename nested_eval<Lhs,((Rhs::Flags&RowMajorBit)==0) ? 1 : Rhs::ColsAtCompileTime>::type LhsNested;
typedef typename nested_eval<Rhs,((Lhs::Flags&RowMajorBit)==0) ? 1 : Dynamic>::type RhsNested;
LhsNested lhsNested(lhs);
RhsNested rhsNested(rhs);
internal::sparse_time_dense_product(lhsNested, rhsNested, dst, alpha);
@ -182,8 +182,8 @@ struct generic_product_impl<Lhs, Rhs, DenseShape, SparseShape, ProductType>
template<typename Dst>
static void scaleAndAddTo(Dst& dst, const Lhs& lhs, const Rhs& rhs, const Scalar& alpha)
{
typedef typename nested_eval<Lhs,Dynamic>::type LhsNested;
typedef typename nested_eval<Rhs,Dynamic>::type RhsNested;
typedef typename nested_eval<Lhs,((Rhs::Flags&RowMajorBit)==0) ? Dynamic : 1>::type LhsNested;
typedef typename nested_eval<Rhs,((Lhs::Flags&RowMajorBit)==RowMajorBit) ? 1 : Lhs::RowsAtCompileTime>::type RhsNested;
LhsNested lhsNested(lhs);
RhsNested rhsNested(rhs);