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First part of a big refactoring of alignment control to enable the handling of arbitrarily aligned buffers. It includes:

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- AlignedBit flag is deprecated. Alignment is now specified by the evaluator through the 'Alignment' enum, e.g., evaluator<Xpr>::Alignment. Its value is in Bytes.
 - Add several enums to specify alignment: Aligned8, Aligned16, Aligned32, Aligned64, Aligned128. AlignedMax corresponds to EIGEN_MAX_ALIGN_BYTES. Such enums are used to define the above Alignment value, and as the 'Options' template parameter of Map<> and Ref<>.
 - The Aligned enum is now deprecated. It is now an alias for Aligned16.
 - Currently, traits<Matrix<>>, traits<Array<>>, traits<Ref<>>, traits<Map<>>, and traits<Block<>> also expose the Alignment enum.
This commit is contained in:
Gael Guennebaud
2015-08-06 15:31:07 +02:00
parent 65186ef18d
commit 1f5024332e
24 changed files with 231 additions and 200 deletions
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3
Eigen/src/Core/MapBase.h
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@@ -160,9 +160,8 @@ template<typename Derived> class MapBase<Derived, ReadOnlyAccessors>
EIGEN_DEVICE_FUNC
void checkSanity() const
{
// TODO "IsAligned" should be replaced to handle arbitrary alignment
#if EIGEN_MAX_ALIGN_BYTES>0
eigen_assert(EIGEN_IMPLIES(internal::traits<Derived>::IsAligned, (size_t(m_data) % EIGEN_MAX_ALIGN_BYTES) == 0) && "data is not aligned");
eigen_assert(((size_t(m_data) % EIGEN_PLAIN_ENUM_MAX(1,internal::traits<Derived>::Alignment)) == 0) && "data is not aligned");
#endif
}