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Regression tests for number of nested temporaries.

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Moved EIGEN_DEBUG_MATRIX_CTOR to ei_matrix_storage to capture resize related allocations.
This commit is contained in:
Hauke Heibel
2010-02-09 20:32:48 +01:00
parent f96e6a6944
commit 5da3049b80
3 changed files with 31 additions and 14 deletions
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23
test/product_notemporary.cpp
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@@ -24,10 +24,7 @@
static int nb_temporaries;
#define EIGEN_DEBUG_MATRIX_CTOR { \
if(SizeAtCompileTime==Dynamic && this->data()!=0) \
nb_temporaries++; \
}
#define EIGEN_DEBUG_MATRIX_CTOR { if(size!=0) nb_temporaries++; }
#include "main.h"
@@ -40,10 +37,11 @@ static int nb_temporaries;
template<typename MatrixType> void product_notemporary(const MatrixType& m)
{
/* This test checks the number of tempories created
/* This test checks the number of temporaries created
* during the evaluation of a complex expression */
typedef typename MatrixType::Scalar Scalar;
typedef typename MatrixType::RealScalar RealScalar;
typedef Matrix<Scalar, 1, Dynamic> RowVectorType;
typedef Matrix<Scalar, Dynamic, 1> ColVectorType;
typedef Matrix<Scalar, Dynamic, Dynamic, RowMajor> RowMajorMatrixType;
@@ -105,10 +103,21 @@ template<typename MatrixType> void product_notemporary(const MatrixType& m)
VERIFY_EVALUATION_COUNT( m3.template selfadjointView<Lower>().rankUpdate(m2.adjoint()), 0);
// Here we will get 1 temporary for each resize operation of the lhs operator; resize(r1,c1) would lead to zero temporaries
m3.resize(1,1);
VERIFY_EVALUATION_COUNT( m3.noalias() = m1.block(r0,r0,r1,r1).template selfadjointView<Lower>() * m2.block(r0,c0,r1,c1), 0);
VERIFY_EVALUATION_COUNT( m3.noalias() = m1.block(r0,r0,r1,r1).template selfadjointView<Lower>() * m2.block(r0,c0,r1,c1), 1);
m3.resize(1,1);
VERIFY_EVALUATION_COUNT( m3.noalias() = m1.block(r0,r0,r1,r1).template triangularView<UnitUpper>() * m2.block(r0,c0,r1,c1), 0);
VERIFY_EVALUATION_COUNT( m3.noalias() = m1.block(r0,r0,r1,r1).template triangularView<UnitUpper>() * m2.block(r0,c0,r1,c1), 1);
// Zero temporaries for lazy products ...
VERIFY_EVALUATION_COUNT( Scalar tmp = Scalar(RealScalar(1)) / (m3.transpose().lazyProduct(m3)).diagonal().sum(), 0 );
// ... and one temporary for even deeply (>=2) nested products
VERIFY_EVALUATION_COUNT( Scalar tmp = Scalar(RealScalar(1)) / (m3.transpose() * m3).diagonal().sum(), 1 );
VERIFY_EVALUATION_COUNT( Scalar tmp = Scalar(RealScalar(1)) / (m3.transpose() * m3).diagonal().array().abs().sum(), 1 );
// Zero temporaries for ... CoeffBasedProductMode
VERIFY_EVALUATION_COUNT( m3.col(0).head<5>() * m3.col(0).transpose() + m3.col(0).head<5>() * m3.col(0).transpose(), 0 );
}
void test_product_notemporary()