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Fix Map-with-Stride and cover it by new unit tests.

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Benoit Jacob
2010-02-26 20:12:51 -05:00
parent 32115bff1e
commit b1f666d007
9 changed files with 203 additions and 48 deletions
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10
Eigen/src/Core/util/Constants.h
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@@ -86,11 +86,11 @@ const unsigned int EvalBeforeAssigningBit = 0x4;
* Long version: means that the coefficients can be handled by packets
* and start at a memory location whose alignment meets the requirements
* of the present CPU architecture for optimized packet access. In the fixed-size
* case, there is the additional condition that the total size of the coefficients
* array is a multiple of the packet size, so that it is possible to access all the
* coefficients by packets. In the dynamic-size case, there is no such condition
* on the total size, so it might not be possible to access the few last coeffs
* by packets.
* case, there is the additional condition that it be possible to access all the
* coefficients by packets (this implies the requirement that the size be a multiple of 16 bytes,
* and that any nontrivial strides don't break the alignment). In the dynamic-size case,
* there is no such condition on the total size and strides, so it might not be possible to access
* all coeffs by packets.
*
* \note This bit can be set regardless of whether vectorization is actually enabled.
* To check for actual vectorizability, see \a ActualPacketAccessBit.