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* Big change in Block and Map:

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- added a MapBase base xpr on top of which Map and the specialization
    of Block are implemented
  - MapBase forces both aligned loads (and aligned stores, see below) in expressions
    such as "x.block(...) += other_expr"
* Significant vectorization improvement:
 - added a AlignedBit flag meaning the first coeff/packet is aligned,
   this allows to not generate extra code to deal with the first unaligned part
 - removed all unaligned stores when no unrolling
 - removed unaligned loads in Sum when the input as the DirectAccessBit flag
* Some code simplification in CacheFriendly product
* Some minor documentation improvements
This commit is contained in:
Gael Guennebaud
2008-08-09 18:41:24 +00:00
parent becbeda50a
commit 4fa40367e9
17 changed files with 397 additions and 296 deletions
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2
Eigen/src/Core/CwiseBinaryOp.h
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@@ -67,7 +67,7 @@ struct ei_traits<CwiseBinaryOp<BinaryOp, Lhs, Rhs> >
MaxColsAtCompileTime = Lhs::MaxColsAtCompileTime,
Flags = (int(LhsFlags) | int(RhsFlags)) & (
HereditaryBits
| (int(LhsFlags) & int(RhsFlags) & LinearAccessBit)
| (int(LhsFlags) & int(RhsFlags) & (LinearAccessBit | AlignedBit))
| (ei_functor_traits<BinaryOp>::PacketAccess && ((int(LhsFlags) & RowMajorBit)==(int(RhsFlags) & RowMajorBit))
? (int(LhsFlags) & int(RhsFlags) & PacketAccessBit) : 0)),
CoeffReadCost = LhsCoeffReadCost + RhsCoeffReadCost + ei_functor_traits<BinaryOp>::Cost