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Don't vectorize the MeanReducer unless pdiv is available.

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This commit is contained in:
Rasmus Munk Larsen 2018-09-11 14:09:00 -07:00
parent 5da960702f
commit e289f44c56
1 changed files with 2 additions and 1 deletions
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unsupported/Eigen/CXX11/src/Tensor/TensorFunctors.h
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@ -158,7 +158,8 @@ template <typename T, typename Device>
struct reducer_traits<MeanReducer<T>, Device> {
enum {
Cost = NumTraits<T>::AddCost,
PacketAccess = PacketType<T, Device>::HasAdd && !NumTraits<T>::IsInteger,
PacketAccess = PacketType<T, Device>::HasAdd &&
PacketType<T, Device>::HasDiv && !NumTraits<T>::IsInteger,
IsStateful = true,
IsExactlyAssociative = NumTraits<T>::IsInteger
};