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Favor column major storage for inner products

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This commit is contained in:
Gael Guennebaud
2014-09-14 19:38:49 +02:00
parent 26db954776
commit c83e01f2d6
3 changed files with 12 additions and 10 deletions
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2
Eigen/src/Core/Product.h
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@@ -85,7 +85,7 @@ struct traits<Product<Lhs, Rhs, Option> >
#endif
// The storage order is somewhat arbitrary here. The correct one will be determined through the evaluator.
Flags = ( MaxRowsAtCompileTime==1
Flags = ( (MaxRowsAtCompileTime==1 && MaxColsAtCompileTime!=1)
|| ((LhsTraits::Flags&NoPreferredStorageOrderBit) && (RhsTraits::Flags&RowMajorBit))
|| ((RhsTraits::Flags&NoPreferredStorageOrderBit) && (LhsTraits::Flags&RowMajorBit)) )
? RowMajorBit : (MaxColsAtCompileTime==1 ? 0 : NoPreferredStorageOrderBit)