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Fix propagation of AssumeAliasing for expression as: "scalar * (A*B)"

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This commit is contained in:
Gael Guennebaud 2015-10-08 21:41:27 +02:00
parent d866279364
commit 4140ee039d
1 changed files with 6 additions and 0 deletions
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6
Eigen/src/Core/ProductEvaluators.h
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@ -38,6 +38,12 @@ struct evaluator<Product<Lhs, Rhs, Options> >
// Catch scalar * ( A * B ) and transform it to (A*scalar) * B
// TODO we should apply that rule only if that's really helpful
template<typename Lhs, typename Rhs, typename Scalar>
struct evaluator_traits<CwiseUnaryOp<internal::scalar_multiple_op<Scalar>, const Product<Lhs, Rhs, DefaultProduct> > >
: evaluator_traits_base<CwiseUnaryOp<internal::scalar_multiple_op<Scalar>, const Product<Lhs, Rhs, DefaultProduct> > >
{
enum { AssumeAliasing = 1 };
};
template<typename Lhs, typename Rhs, typename Scalar>
struct evaluator<CwiseUnaryOp<internal::scalar_multiple_op<Scalar>, const Product<Lhs, Rhs, DefaultProduct> > >
: public evaluator<Product<CwiseUnaryOp<internal::scalar_multiple_op<Scalar>,const Lhs>, Rhs, DefaultProduct> >
{