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| author | Yi Kong <yikong@google.com> | 2022-02-25 15:53:09 +0000 |
|---|---|---|
| committer | Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com> | 2022-02-25 15:53:09 +0000 |
| commit | 10f298fc4175c1b8537c674f654a070c871960e5 (patch) | |
| tree | fb979fb4cf4f8052c8cc66b1ec9516d91fcd859b /Eigen/src/Core/products/TriangularMatrixVector.h | |
| parent | 892aea0d75825c43d5b630e2060622cbba23694c (diff) | |
| parent | 79df15ea886a5fc1b85de433f9b3518c68934bae (diff) | |
| download | eigen-10f298fc4175c1b8537c674f654a070c871960e5.tar.gz | |
Merge changes Iee153445,Iee274471 am: 79df15ea88android-games-sdk-games-performance-tuner-releaseandroid-games-sdk-games-memory-advice-releaseandroid-games-sdk-games-frame-pacing-releaseandroid-games-sdk-games-controller-releaseandroid-games-sdk-game-text-input-releaseandroid-games-sdk-game-activity-release
Original change: https://android-review.googlesource.com/c/platform/external/eigen/+/1999079
Change-Id: I0c5108390c595f0d39af8797875f2b88accb7b56
Diffstat (limited to 'Eigen/src/Core/products/TriangularMatrixVector.h')
| -rw-r--r-- | Eigen/src/Core/products/TriangularMatrixVector.h | 22 |
1 files changed, 18 insertions, 4 deletions
diff --git a/Eigen/src/Core/products/TriangularMatrixVector.h b/Eigen/src/Core/products/TriangularMatrixVector.h index 4b292e74d..76bfa159c 100644 --- a/Eigen/src/Core/products/TriangularMatrixVector.h +++ b/Eigen/src/Core/products/TriangularMatrixVector.h @@ -221,8 +221,9 @@ template<int Mode> struct trmv_selector<Mode,ColMajor> typename internal::add_const_on_value_type<ActualLhsType>::type actualLhs = LhsBlasTraits::extract(lhs); typename internal::add_const_on_value_type<ActualRhsType>::type actualRhs = RhsBlasTraits::extract(rhs); - ResScalar actualAlpha = alpha * LhsBlasTraits::extractScalarFactor(lhs) - * RhsBlasTraits::extractScalarFactor(rhs); + LhsScalar lhs_alpha = LhsBlasTraits::extractScalarFactor(lhs); + RhsScalar rhs_alpha = RhsBlasTraits::extractScalarFactor(rhs); + ResScalar actualAlpha = alpha * lhs_alpha * rhs_alpha; enum { // FIXME find a way to allow an inner stride on the result if packet_traits<Scalar>::size==1 @@ -274,6 +275,12 @@ template<int Mode> struct trmv_selector<Mode,ColMajor> else dest = MappedDest(actualDestPtr, dest.size()); } + + if ( ((Mode&UnitDiag)==UnitDiag) && (lhs_alpha!=LhsScalar(1)) ) + { + Index diagSize = (std::min)(lhs.rows(),lhs.cols()); + dest.head(diagSize) -= (lhs_alpha-LhsScalar(1))*rhs.head(diagSize); + } } }; @@ -295,8 +302,9 @@ template<int Mode> struct trmv_selector<Mode,RowMajor> typename add_const<ActualLhsType>::type actualLhs = LhsBlasTraits::extract(lhs); typename add_const<ActualRhsType>::type actualRhs = RhsBlasTraits::extract(rhs); - ResScalar actualAlpha = alpha * LhsBlasTraits::extractScalarFactor(lhs) - * RhsBlasTraits::extractScalarFactor(rhs); + LhsScalar lhs_alpha = LhsBlasTraits::extractScalarFactor(lhs); + RhsScalar rhs_alpha = RhsBlasTraits::extractScalarFactor(rhs); + ResScalar actualAlpha = alpha * lhs_alpha * rhs_alpha; enum { DirectlyUseRhs = ActualRhsTypeCleaned::InnerStrideAtCompileTime==1 @@ -326,6 +334,12 @@ template<int Mode> struct trmv_selector<Mode,RowMajor> actualRhsPtr,1, dest.data(),dest.innerStride(), actualAlpha); + + if ( ((Mode&UnitDiag)==UnitDiag) && (lhs_alpha!=LhsScalar(1)) ) + { + Index diagSize = (std::min)(lhs.rows(),lhs.cols()); + dest.head(diagSize) -= (lhs_alpha-LhsScalar(1))*rhs.head(diagSize); + } } }; |