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fix #76, MayLinearVectorize depends on MaxSizeAtCompileTime and not on MaxInnerSize

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This commit is contained in:
Gael Guennebaud 2009-12-23 13:19:28 +01:00
parent 0b5853d917
commit 24302ad5cd
1 changed files with 3 additions and 2 deletions
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5
Eigen/src/Core/Assign.h
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@ -49,6 +49,7 @@ private:
InnerMaxSize = int(Derived::Flags)&RowMajorBit
? Derived::MaxColsAtCompileTime
: Derived::MaxRowsAtCompileTime,
MaxSizeAtCompileTime = ei_size_at_compile_time<Derived::MaxColsAtCompileTime,Derived::MaxRowsAtCompileTime>::ret,
PacketSize = ei_packet_traits<typename Derived::Scalar>::size
};
@ -60,9 +61,9 @@ private:
&& int(DstIsAligned) && int(SrcIsAligned),
MayLinearize = StorageOrdersAgree && (int(Derived::Flags) & int(OtherDerived::Flags) & LinearAccessBit),
MayLinearVectorize = MightVectorize && MayLinearize
&& (DstIsAligned || InnerMaxSize == Dynamic),
&& (DstIsAligned || MaxSizeAtCompileTime == Dynamic),
/* If the destination isn't aligned, we have to do runtime checks and we don't unroll,
so it's only good for large enough sizes. See remark below about InnerMaxSize. */
so it's only good for large enough sizes. */
MaySliceVectorize = MightVectorize && int(InnerMaxSize)>=3*PacketSize
/* slice vectorization can be slow, so we only want it if the slices are big, which is
indicated by InnerMaxSize rather than InnerSize, think of the case of a dynamic block