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LinearVectorization: If the destination isn't aligned,

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we have to do runtime checks and we don't unroll, so it's only good for large enough sizes
This commit is contained in:
Benoit Jacob 2009-08-09 22:19:12 +02:00
parent 1f1705868b
commit 216ee335ac
1 changed files with 4 additions and 1 deletions
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5
Eigen/src/Core/Assign.h
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@ -57,7 +57,10 @@ private:
&& ((int(Derived::Flags)&RowMajorBit)==(int(OtherDerived::Flags)&RowMajorBit)), && ((int(Derived::Flags)&RowMajorBit)==(int(OtherDerived::Flags)&RowMajorBit)),
MayInnerVectorize = MightVectorize && int(InnerSize)!=Dynamic && int(InnerSize)%int(PacketSize)==0 MayInnerVectorize = MightVectorize && int(InnerSize)!=Dynamic && int(InnerSize)%int(PacketSize)==0
&& int(DstIsAligned) && int(SrcIsAligned), && int(DstIsAligned) && int(SrcIsAligned),
MayLinearVectorize = MightVectorize && (int(Derived::Flags) & int(OtherDerived::Flags) & LinearAccessBit), MayLinearVectorize = MightVectorize && (int(Derived::Flags) & int(OtherDerived::Flags) & LinearAccessBit)
&& (DstIsAligned || InnerMaxSize == 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. */
MaySliceVectorize = MightVectorize && int(InnerMaxSize)>=3*PacketSize /* slice vectorization can be slow, so we only 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 want it if the slices are big, which is indicated by InnerMaxSize rather than InnerSize, think of the case
of a dynamic block in a fixed-size matrix */ of a dynamic block in a fixed-size matrix */