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play with inlining to get better performance when the compiler is not asked to optimize

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Benoit Jacob
2007-12-11 13:14:14 +00:00
parent 8117c9aa83
commit 936b0de9cc
16 changed files with 71 additions and 63 deletions
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22
src/Core/OperatorEquals.h
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@@ -27,23 +27,23 @@
#ifndef EIGEN_OPERATOREQUALS_H
#define EIGEN_OPERATOREQUALS_H
template<int UnrollCount, int Rows> struct OperatorEqualsUnroller
template<typename Derived1, typename Derived2, int UnrollCount, int Rows>
struct OperatorEqualsUnroller
{
static const int col = (UnrollCount-1) / Rows;
static const int row = (UnrollCount-1) % Rows;
template <typename Derived1, typename Derived2>
static void run(Derived1 &dst, const Derived2 &src)
{
OperatorEqualsUnroller<UnrollCount-1, Rows>::run(dst, src);
OperatorEqualsUnroller<Derived1, Derived2, UnrollCount-1, Rows>::run(dst, src);
dst.write(row, col) = src.read(row, col);
}
};
// prevent buggy user code from causing an infinite recursion
template<int UnrollCount> struct OperatorEqualsUnroller<UnrollCount, 0>
template<typename Derived1, typename Derived2, int UnrollCount>
struct OperatorEqualsUnroller<Derived1, Derived2, UnrollCount, 0>
{
template <typename Derived1, typename Derived2>
static void run(Derived1 &dst, const Derived2 &src)
{
EIGEN_UNUSED(dst);
@@ -51,18 +51,18 @@ template<int UnrollCount> struct OperatorEqualsUnroller<UnrollCount, 0>
}
};
template<int Rows> struct OperatorEqualsUnroller<1, Rows>
template<typename Derived1, typename Derived2, int Rows>
struct OperatorEqualsUnroller<Derived1, Derived2, 1, Rows>
{
template <typename Derived1, typename Derived2>
static void run(Derived1 &dst, const Derived2 &src)
{
dst.write(0, 0) = src.read(0, 0);
}
};
template<int Rows> struct OperatorEqualsUnroller<Dynamic, Rows>
template<typename Derived1, typename Derived2, int Rows>
struct OperatorEqualsUnroller<Derived1, Derived2, Dynamic, Rows>
{
template <typename Derived1, typename Derived2>
static void run(Derived1 &dst, const Derived2 &src)
{
EIGEN_UNUSED(dst);
@@ -77,7 +77,9 @@ Derived& MatrixBase<Scalar, Derived>
{
assert(rows() == other.rows() && cols() == other.cols());
if(EIGEN_UNROLLED_LOOPS && SizeAtCompileTime != Dynamic && SizeAtCompileTime <= 25)
OperatorEqualsUnroller<SizeAtCompileTime, RowsAtCompileTime>::run(*this, other);
OperatorEqualsUnroller
<Derived, OtherDerived, SizeAtCompileTime, RowsAtCompileTime>::run
(*static_cast<Derived*>(this), *static_cast<const OtherDerived*>(&other));
else
for(int j = 0; j < cols(); j++) //traverse in column-dominant order
for(int i = 0; i < rows(); i++)