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Fix detection of same matrices for expressions not handled by extract_data

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This commit is contained in:
Gael Guennebaud 2016-04-13 18:40:02 +02:00
parent 547a3c0d28
commit 8d16e2aa27
5 changed files with 9 additions and 5 deletions
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3
Eigen/src/Core/PermutationMatrix.h
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@ -584,10 +584,11 @@ struct permut_matrix_product_retval
const Index n = Side==OnTheLeft ? rows() : cols();
// FIXME we need an is_same for expression that is not sensitive to constness. For instance
// is_same_xpr<Block<const Matrix>, Block<Matrix> >::value should be true.
const typename Dest::Scalar *dst_data = internal::extract_data(dst);
if( is_same<MatrixTypeNestedCleaned,Dest>::value
&& blas_traits<MatrixTypeNestedCleaned>::HasUsableDirectAccess
&& blas_traits<Dest>::HasUsableDirectAccess
&& extract_data(dst) == extract_data(m_matrix))
&& dst_data!=0 && dst_data == extract_data(m_matrix))
{
// apply the permutation inplace
Matrix<bool,PermutationType::RowsAtCompileTime,1,0,PermutationType::MaxRowsAtCompileTime> mask(m_permutation.size());

3
Eigen/src/Core/SolveTriangular.h
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@ -243,7 +243,8 @@ template<int Side, typename TriangularType, typename Rhs> struct triangular_solv
template<typename Dest> inline void evalTo(Dest& dst) const
{
if(!(is_same<RhsNestedCleaned,Dest>::value && extract_data(dst) == extract_data(m_rhs)))
const typename Dest::Scalar *dst_data = internal::extract_data(dst);
if(!(is_same<RhsNestedCleaned,Dest>::value && dst_data!=0 && extract_data(dst) == extract_data(m_rhs)))
dst = m_rhs;
m_triangularMatrix.template solveInPlace<Side>(dst);
}

3
Eigen/src/Core/Transpositions.h
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@ -376,7 +376,8 @@ struct transposition_matrix_product_retval
const int size = m_transpositions.size();
Index j = 0;
if(!(is_same<MatrixTypeNestedCleaned,Dest>::value && extract_data(dst) == extract_data(m_matrix)))
const typename Dest::Scalar *dst_data = internal::extract_data(dst);
if(!(is_same<MatrixTypeNestedCleaned,Dest>::value && dst_data!=0 && dst_data == extract_data(m_matrix)))
dst = m_matrix;
for(int k=(Transposed?size-1:0) ; Transposed?k>=0:k<size ; Transposed?--k:++k)

3
Eigen/src/Householder/HouseholderSequence.h
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@ -237,8 +237,9 @@ template<typename VectorsType, typename CoeffsType, int Side> class HouseholderS
{
workspace.resize(rows());
Index vecs = m_length;
const typename Dest::Scalar *dst_data = internal::extract_data(dst);
if( internal::is_same<typename internal::remove_all<VectorsType>::type,Dest>::value
&& internal::extract_data(dst) == internal::extract_data(m_vectors))
&& dst_data!=0 && dst_data == internal::extract_data(m_vectors))
{
// in-place
dst.diagonal().setOnes();

2
Eigen/src/LU/Inverse.h
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@ -290,7 +290,7 @@ struct inverse_impl : public ReturnByValue<inverse_impl<MatrixType> >
{
const int Size = EIGEN_PLAIN_ENUM_MIN(MatrixType::ColsAtCompileTime,Dest::ColsAtCompileTime);
EIGEN_ONLY_USED_FOR_DEBUG(Size);
eigen_assert(( (Size<=1) || (Size>4) || (extract_data(m_matrix)!=extract_data(dst)))
eigen_assert(( (Size<=1) || (Size>4) || (extract_data(m_matrix)!=0 && extract_data(m_matrix)!=extract_data(dst)))
&& "Aliasing problem detected in inverse(), you need to do inverse().eval() here.");
compute_inverse<MatrixTypeNestedCleaned, Dest>::run(m_matrix, dst);