diff options
Diffstat (limited to 'Eigen/src/Core/products')
| -rw-r--r-- | Eigen/src/Core/products/GeneralMatrixMatrix.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/Eigen/src/Core/products/GeneralMatrixMatrix.h b/Eigen/src/Core/products/GeneralMatrixMatrix.h index f49abcad5..90c9c4647 100644 --- a/Eigen/src/Core/products/GeneralMatrixMatrix.h +++ b/Eigen/src/Core/products/GeneralMatrixMatrix.h @@ -469,6 +469,20 @@ struct generic_product_impl<Lhs,Rhs,DenseShape,DenseShape,GemmProduct> if(a_lhs.cols()==0 || a_lhs.rows()==0 || a_rhs.cols()==0) return; + // Fallback to GEMV if either the lhs or rhs is a runtime vector + if (dst.cols() == 1) + { + typename Dest::ColXpr dst_vec(dst.col(0)); + return internal::generic_product_impl<Lhs,typename Rhs::ConstColXpr,DenseShape,DenseShape,GemvProduct> + ::scaleAndAddTo(dst_vec, a_lhs, a_rhs.col(0), alpha); + } + else if (dst.rows() == 1) + { + typename Dest::RowXpr dst_vec(dst.row(0)); + return internal::generic_product_impl<typename Lhs::ConstRowXpr,Rhs,DenseShape,DenseShape,GemvProduct> + ::scaleAndAddTo(dst_vec, a_lhs.row(0), a_rhs, alpha); + } + typename internal::add_const_on_value_type<ActualLhsType>::type lhs = LhsBlasTraits::extract(a_lhs); typename internal::add_const_on_value_type<ActualRhsType>::type rhs = RhsBlasTraits::extract(a_rhs); |