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fix big bug in loop unrolling

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This commit is contained in:
Benoit Jacob
2007-10-10 06:33:09 +00:00
parent 06e1e0d83b
commit 3c98677376
3 changed files with 14 additions and 27 deletions
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10
src/Core/Dot.h
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@@ -32,12 +32,12 @@ struct EiDotUnroller
static void run(const Derived1 &v1, const Derived2& v2, typename Derived1::Scalar &dot)
{
EiDotUnroller<Index-1, Size, Derived1, Derived2>::run(v1, v2, dot);
dot += v1[Index-1] * EiConj(v2[Index-1]);
dot += v1[Index] * EiConj(v2[Index]);
}
};
template<int Size, typename Derived1, typename Derived2>
struct EiDotUnroller<1, Size, Derived1, Derived2>
struct EiDotUnroller<0, Size, Derived1, Derived2>
{
static void run(const Derived1 &v1, const Derived2& v2, typename Derived1::Scalar &dot)
{
@@ -45,8 +45,8 @@ struct EiDotUnroller<1, Size, Derived1, Derived2>
}
};
template<int Size, typename Derived1, typename Derived2>
struct EiDotUnroller<EiDynamic, Size, Derived1, Derived2>
template<int Index, typename Derived1, typename Derived2>
struct EiDotUnroller<Index, EiDynamic, Derived1, Derived2>
{
static void run(const Derived1 &v1, const Derived2& v2, typename Derived1::Scalar &dot)
{
@@ -63,7 +63,7 @@ Scalar EiObject<Scalar, Derived>::dot(const OtherDerived& other) const
assert(IsVector && OtherDerived::IsVector && size() == other.size());
Scalar res;
if(SizeAtCompileTime != EiDynamic && SizeAtCompileTime <= 16)
EiDotUnroller<SizeAtCompileTime, SizeAtCompileTime, Derived, OtherDerived>
EiDotUnroller<SizeAtCompileTime-1, SizeAtCompileTime, Derived, OtherDerived>
::run(*static_cast<const Derived*>(this), other, res);
else
{