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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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5
test/vectorization_logic.cpp
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@@ -35,7 +35,6 @@ std::string demangle_flags(int f)
if(f&LinearAccessBit) res += " | Linear";
if(f&LvalueBit) res += " | Lvalue";
if(f&DirectAccessBit) res += " | Direct";
if(f&AlignedBit) res += " | Aligned";
if(f&NestByRefBit) res += " | NestByRef";
if(f&NoPreferredStorageOrderBit) res += " | NoPreferredStorageOrderBit";
@@ -204,12 +203,12 @@ template<typename Scalar, bool Enable = internal::packet_traits<Scalar>::Vectori
LinearVectorizedTraversal,CompleteUnrolling));
VERIFY((test_assign<
Map<Matrix22, Aligned, OuterStride<3*PacketSize> >,
Map<Matrix22, AlignedMax, OuterStride<3*PacketSize> >,
Matrix22
>(InnerVectorizedTraversal,CompleteUnrolling)));
VERIFY((test_assign<
Map<Matrix<Scalar,EIGEN_PLAIN_ENUM_MAX(2,PacketSize),EIGEN_PLAIN_ENUM_MAX(2,PacketSize)>, Aligned, InnerStride<3*PacketSize> >,
Map<Matrix<Scalar,EIGEN_PLAIN_ENUM_MAX(2,PacketSize),EIGEN_PLAIN_ENUM_MAX(2,PacketSize)>, AlignedMax, InnerStride<3*PacketSize> >,
Matrix<Scalar,EIGEN_PLAIN_ENUM_MAX(2,PacketSize),EIGEN_PLAIN_ENUM_MAX(2,PacketSize)>
>(DefaultTraversal,CompleteUnrolling)));