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Fix vectorization logic for coeff-based product for some corner cases.

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This commit is contained in:
Gael Guennebaud
2016-07-31 15:20:22 +02:00
parent 02fe89f5ef
commit 7995cec90c
2 changed files with 38 additions and 2 deletions
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4
Eigen/src/Core/ProductEvaluators.h
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@@ -489,8 +489,8 @@ struct product_evaluator<Product<Lhs, Rhs, LazyProduct>, ProductTag, DenseShape,
SameType = is_same<typename LhsNestedCleaned::Scalar,typename RhsNestedCleaned::Scalar>::value,
CanVectorizeRhs = bool(RhsRowMajor) && (RhsFlags & PacketAccessBit),
CanVectorizeLhs = (!LhsRowMajor) && (LhsFlags & PacketAccessBit),
CanVectorizeRhs = bool(RhsRowMajor) && (RhsFlags & PacketAccessBit) && (ColsAtCompileTime!=1),
CanVectorizeLhs = (!LhsRowMajor) && (LhsFlags & PacketAccessBit) && (RowsAtCompileTime!=1),
EvalToRowMajor = (MaxRowsAtCompileTime==1&&MaxColsAtCompileTime!=1) ? 1
: (MaxColsAtCompileTime==1&&MaxRowsAtCompileTime!=1) ? 0