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* move some compile time "if" to their respective unroller (assign and dot)

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* fix a couple of compilation issues when unrolling is disabled
* reduce default unrolling limit to a more reasonable value
This commit is contained in:
Gael Guennebaud
2008-06-07 01:07:48 +00:00
parent a172385720
commit 6998037930
7 changed files with 145 additions and 133 deletions
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26
Eigen/src/Core/Visitor.h
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@@ -52,7 +52,15 @@ struct ei_visitor_unroller<Visitor, Derived, 1>
template<typename Visitor, typename Derived>
struct ei_visitor_unroller<Visitor, Derived, Dynamic>
{
inline static void run(const Derived &, Visitor&) {}
inline static void run(const Derived& mat, Visitor& visitor)
{
visitor.init(mat.coeff(0,0), 0, 0);
for(int i = 1; i < mat.rows(); i++)
visitor(mat.coeff(i, 0), i, 0);
for(int j = 1; j < mat.cols(); j++)
for(int i = 0; i < mat.rows(); i++)
visitor(mat.coeff(i, j), i, j);
}
};
@@ -77,19 +85,9 @@ void MatrixBase<Derived>::visit(Visitor& visitor) const
const bool unroll = SizeAtCompileTime * CoeffReadCost
+ (SizeAtCompileTime-1) * ei_functor_traits<Visitor>::Cost
<= EIGEN_UNROLLING_LIMIT;
if(unroll)
return ei_visitor_unroller<Visitor, Derived,
unroll ? int(SizeAtCompileTime) : Dynamic
>::run(derived(), visitor);
else
{
visitor.init(coeff(0,0), 0, 0);
for(int i = 1; i < rows(); i++)
visitor(coeff(i, 0), i, 0);
for(int j = 1; j < cols(); j++)
for(int i = 0; i < rows(); i++)
visitor(coeff(i, j), i, j);
}
return ei_visitor_unroller<Visitor, Derived,
unroll ? int(SizeAtCompileTime) : Dynamic
>::run(derived(), visitor);
}
/** \internal