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| author |  Gael Guennebaud <g.gael@free.fr> | 2018-07-09 15:41:14 +0200 |
|---|---|---|
| committer | Gael Guennebaud <g.gael@free.fr> | 2018-07-09 15:41:14 +0200 |
| commit | de9e31a06d0324862d9200d08eb3cc4d3d07e660 (patch) | |
| tree | 9e30ff66edd4d171e2460e4fe994facf5d52cb64 /test/product_notemporary.cpp | |
| parent | 6190aa5632fb698fa66d2dad2949275089f15738 (diff) | |
Introduce the macro ei_declare_local_nested_eval to help allocating on the stack local temporaries via alloca, and let outer-products makes a good use of it.
If successful, we should use it everywhere nested_eval is used to declare local dense temporaries.
Diffstat (limited to 'test/product_notemporary.cpp')
| -rw-r--r-- | test/product_notemporary.cpp | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/test/product_notemporary.cpp b/test/product_notemporary.cpp index 30592b79e..062180f42 100644 --- a/test/product_notemporary.cpp +++ b/test/product_notemporary.cpp @@ -128,11 +128,19 @@ template<typename MatrixType> void product_notemporary(const MatrixType& m) VERIFY_EVALUATION_COUNT( cvres.noalias() = (rm3+rm3) * (m1*cv1), 1 ); // Check outer products + #ifdef EIGEN_ALLOCA + bool temp_via_alloca = m3.rows()*sizeof(Scalar) <= EIGEN_STACK_ALLOCATION_LIMIT; + #else + bool temp_via_alloca = false; + #endif m3 = cv1 * rv1; VERIFY_EVALUATION_COUNT( m3.noalias() = cv1 * rv1, 0 ); - VERIFY_EVALUATION_COUNT( m3.noalias() = (cv1+cv1) * (rv1+rv1), 1 ); + VERIFY_EVALUATION_COUNT( m3.noalias() = (cv1+cv1) * (rv1+rv1), temp_via_alloca ? 0 : 1 ); VERIFY_EVALUATION_COUNT( m3.noalias() = (m1*cv1) * (rv1), 1 ); VERIFY_EVALUATION_COUNT( m3.noalias() += (m1*cv1) * (rv1), 1 ); + rm3 = cv1 * rv1; + VERIFY_EVALUATION_COUNT( rm3.noalias() = cv1 * rv1, 0 ); + VERIFY_EVALUATION_COUNT( rm3.noalias() = (cv1+cv1) * (rv1+rv1), temp_via_alloca ? 0 : 1 ); VERIFY_EVALUATION_COUNT( rm3.noalias() = (cv1) * (rv1 * m1), 1 ); VERIFY_EVALUATION_COUNT( rm3.noalias() -= (cv1) * (rv1 * m1), 1 ); VERIFY_EVALUATION_COUNT( rm3.noalias() = (m1*cv1) * (rv1 * m1), 2 ); |