* Block: row and column expressions in the inner direction

  now have the Like1D flag.

* Big renaming:
  packetCoeff ---> packet
  VectorizableBit ---> PacketAccessBit
  Like1DArrayBit ---> LinearAccessBit

18 files changed, 114 insertions, 110 deletions

diff --git a/Eigen/src/Core/Assign.h b/Eigen/src/Core/Assign.h
index 79993494e..681b3d4ef 100644
--- a/Eigen/src/Core/Assign.h
+++ b/Eigen/src/Core/Assign.h
@@ -34,8 +34,8 @@
 enum {
   NoVectorization,
   InnerVectorization,
-  Like1DVectorization,
-  SlicedVectorization
+  LinearVectorization,
+  SliceVectorization
 };
 
 enum {
@@ -56,18 +56,18 @@ private:
   };
 
   enum {
-    MightVectorize = (int(Derived::Flags) & int(OtherDerived::Flags) & VectorizableBit)
+    MightVectorize = (int(Derived::Flags) & int(OtherDerived::Flags) & PacketAccessBit)
              && ((int(Derived::Flags)&RowMajorBit)==(int(OtherDerived::Flags)&RowMajorBit)),
     MayInnerVectorize = MightVectorize && InnerSize!=Dynamic && int(InnerSize)%int(PacketSize)==0,
-    MayLike1DVectorize = MightVectorize && (int(Derived::Flags) & int(OtherDerived::Flags) & Like1DArrayBit),
-    MaySlicedVectorize = MightVectorize && InnerSize==Dynamic
+    MayLinearVectorize = MightVectorize && (int(Derived::Flags) & int(OtherDerived::Flags) & LinearAccessBit),
+    MaySliceVectorize = MightVectorize && InnerSize==Dynamic
   };
 
 public:
   enum {
     Vectorization = MayInnerVectorize  ? InnerVectorization
-                  : MayLike1DVectorize ? Like1DVectorization
-                  : MaySlicedVectorize ? SlicedVectorization
+                  : MayLinearVectorize ? LinearVectorization
+                  : MaySliceVectorize ? SliceVectorization
                                        : NoVectorization
   };
 
@@ -86,7 +86,7 @@ public:
                  : MayUnrollInner      ? InnerUnrolling
                                        : NoUnrolling
                 )
-              : int(Vectorization) == int(Like1DVectorization)
+              : int(Vectorization) == int(LinearVectorization)
               ? ( MayUnrollCompletely ? CompleteUnrolling : NoUnrolling )
               : NoUnrolling
   };
@@ -162,7 +162,7 @@ struct ei_assign_innervec_CompleteUnrolling
 
   inline static void run(Derived1 &dst, const Derived2 &src)
   {
-    dst.template writePacketCoeff<Aligned>(row, col, src.template packetCoeff<Aligned>(row, col));
+    dst.template writePacket<Aligned>(row, col, src.template packet<Aligned>(row, col));
     ei_assign_innervec_CompleteUnrolling<Derived1, Derived2,
       Index+ei_packet_traits<typename Derived1::Scalar>::size, Stop>::run(dst, src);
   }
@@ -181,7 +181,7 @@ struct ei_assign_innervec_InnerUnrolling
   {
     const int row = int(Derived1::Flags)&RowMajorBit ? row_or_col : Index;
     const int col = int(Derived1::Flags)&RowMajorBit ? Index : row_or_col;
-    dst.template writePacketCoeff<Aligned>(row, col, src.template packetCoeff<Aligned>(row, col));
+    dst.template writePacket<Aligned>(row, col, src.template packet<Aligned>(row, col));
     ei_assign_innervec_InnerUnrolling<Derived1, Derived2,
       Index+ei_packet_traits<typename Derived1::Scalar>::size, Stop>::run(dst, src, row_or_col);
   }
@@ -267,7 +267,7 @@ struct ei_assign_impl<Derived1, Derived2, InnerVectorization, NoUnrolling>
       {
         const int row = rowMajor ? j : i;
         const int col = rowMajor ? i : j;
-        dst.template writePacketCoeff<Aligned>(row, col, src.template packetCoeff<Aligned>(row, col));
+        dst.template writePacket<Aligned>(row, col, src.template packet<Aligned>(row, col));
       }  
     }
   }
@@ -298,11 +298,11 @@ struct ei_assign_impl<Derived1, Derived2, InnerVectorization, InnerUnrolling>
 };
 
 /***************************
-*** Like1D vectorization ***
+*** Linear vectorization ***
 ***************************/
 
 template<typename Derived1, typename Derived2>
-struct ei_assign_impl<Derived1, Derived2, Like1DVectorization, NoUnrolling>
+struct ei_assign_impl<Derived1, Derived2, LinearVectorization, NoUnrolling>
 {
   static void run(Derived1 &dst, const Derived2 &src)
   {
@@ -320,7 +320,7 @@ struct ei_assign_impl<Derived1, Derived2, Like1DVectorization, NoUnrolling>
       // FIXME the following is not really efficient
       const int row = rowMajor ? index/innerSize : index%innerSize;
       const int col = rowMajor ? index%innerSize : index/innerSize;
-      dst.template writePacketCoeff<Aligned>(row, col, src.template packetCoeff<Aligned>(row, col));
+      dst.template writePacket<Aligned>(row, col, src.template packet<Aligned>(row, col));
     }
 
     // now we must do the rest without vectorization.
@@ -347,7 +347,7 @@ struct ei_assign_impl<Derived1, Derived2, Like1DVectorization, NoUnrolling>
 };
 
 template<typename Derived1, typename Derived2>
-struct ei_assign_impl<Derived1, Derived2, Like1DVectorization, CompleteUnrolling>
+struct ei_assign_impl<Derived1, Derived2, LinearVectorization, CompleteUnrolling>
 {
   inline static void run(Derived1 &dst, const Derived2 &src)
   {
@@ -375,16 +375,16 @@ struct ei_assign_impl<Derived1, Derived2, Like1DVectorization, CompleteUnrolling
   }
 };
 
-/***************************
-*** Sliced vectorization ***
+/**************************
+*** Slice vectorization ***
 ***************************/
 
 template<typename Derived1, typename Derived2>
-struct ei_assign_impl<Derived1, Derived2, SlicedVectorization, NoUnrolling>
+struct ei_assign_impl<Derived1, Derived2, SliceVectorization, NoUnrolling>
 {
   static void run(Derived1 &dst, const Derived2 &src)
   {
-    //FIXME unimplemented
+    //FIXME unimplemented, so for now we fall back to non-vectorized path
     ei_assign_impl<Derived1, Derived2, NoVectorization, NoUnrolling>::run(dst, src);
   }
 };
diff --git a/Eigen/src/Core/Block.h b/Eigen/src/Core/Block.h
index 07241629c..c76fb4903 100644
--- a/Eigen/src/Core/Block.h
+++ b/Eigen/src/Core/Block.h
@@ -71,7 +71,11 @@ struct ei_traits<Block<MatrixType, BlockRows, BlockCols> >
                       || (ColsAtCompileTime != Dynamic && MatrixType::ColsAtCompileTime == Dynamic))
                       ? ~LargeBit
                       : ~(unsigned int)0,
-    Flags = MatrixType::Flags & (HereditaryBits | VectorizableBit | DirectAccessBit) & FlagsMaskLargeBit,
+    FlagsLinearAccessBit = MatrixType::Flags & RowMajorBit
+                        ? (RowsAtCompileTime == 1 ? LinearAccessBit : 0)
+                        : (ColsAtCompileTime == 1 ? LinearAccessBit : 0),
+    Flags = (MatrixType::Flags & (HereditaryBits | PacketAccessBit | DirectAccessBit) & FlagsMaskLargeBit)
+          | FlagsLinearAccessBit,
     CoeffReadCost = MatrixType::CoeffReadCost
   };
 };
@@ -146,15 +150,15 @@ template<typename MatrixType, int BlockRows, int BlockCols> class Block
     }
 
     template<int LoadMode>
-    inline PacketScalar _packetCoeff(int row, int col) const
+    inline PacketScalar _packet(int row, int col) const
     {
-      return m_matrix.template packetCoeff<UnAligned>(row + m_startRow.value(), col + m_startCol.value());
+      return m_matrix.template packet<UnAligned>(row + m_startRow.value(), col + m_startCol.value());
     }
 
     template<int LoadMode>
-    inline void _writePacketCoeff(int row, int col, const PacketScalar& x)
+    inline void _writePacket(int row, int col, const PacketScalar& x)
     {
-      m_matrix.const_cast_derived().template writePacketCoeff<UnAligned>(row + m_startRow.value(), col + m_startCol.value(), x);
+      m_matrix.const_cast_derived().template writePacket<UnAligned>(row + m_startRow.value(), col + m_startCol.value(), x);
     }
 
   protected:
diff --git a/Eigen/src/Core/Coeffs.h b/Eigen/src/Core/Coeffs.h
index 3f00a25ae..deb015136 100644
--- a/Eigen/src/Core/Coeffs.h
+++ b/Eigen/src/Core/Coeffs.h
@@ -249,14 +249,14 @@ inline typename ei_traits<Derived>::Scalar& MatrixBase<Derived>
 template<typename Derived>
 template<int LoadMode>
 inline typename ei_packet_traits<typename ei_traits<Derived>::Scalar>::type
-MatrixBase<Derived>::packetCoeff(int row, int col) const
-{ return derived().template _packetCoeff<LoadMode>(row,col); }
+MatrixBase<Derived>::packet(int row, int col) const
+{ return derived().template _packet<LoadMode>(row,col); }
 
 template<typename Derived>
 template<int StoreMode>
-inline void MatrixBase<Derived>::writePacketCoeff
+inline void MatrixBase<Derived>::writePacket
 (int row, int col, const typename ei_packet_traits<typename ei_traits<Derived>::Scalar>::type& x)
-{ derived().template _writePacketCoeff<StoreMode>(row,col,x); }
+{ derived().template _writePacket<StoreMode>(row,col,x); }
 
 
 #endif // EIGEN_COEFFS_H
diff --git a/Eigen/src/Core/CwiseBinaryOp.h b/Eigen/src/Core/CwiseBinaryOp.h
index 6b532dbd7..b12aa65bd 100644
--- a/Eigen/src/Core/CwiseBinaryOp.h
+++ b/Eigen/src/Core/CwiseBinaryOp.h
@@ -67,9 +67,9 @@ struct ei_traits<CwiseBinaryOp<BinaryOp, Lhs, Rhs> >
     MaxColsAtCompileTime = Lhs::MaxColsAtCompileTime,
     Flags = (int(LhsFlags) | int(RhsFlags)) & (
         HereditaryBits
-      | (int(LhsFlags) & int(RhsFlags) & Like1DArrayBit)
-      | (ei_functor_traits<BinaryOp>::IsVectorizable && ((int(LhsFlags) & RowMajorBit)==(int(RhsFlags) & RowMajorBit))
-        ? int(LhsFlags) & int(RhsFlags) & VectorizableBit : 0)),
+      | (int(LhsFlags) & int(RhsFlags) & LinearAccessBit)
+      | (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
   };
 };
@@ -101,9 +101,9 @@ class CwiseBinaryOp : ei_no_assignment_operator,
     }
 
     template<int LoadMode>
-    inline PacketScalar _packetCoeff(int row, int col) const
+    inline PacketScalar _packet(int row, int col) const
     {
-      return m_functor.packetOp(m_lhs.template packetCoeff<LoadMode>(row, col), m_rhs.template packetCoeff<LoadMode>(row, col));
+      return m_functor.packetOp(m_lhs.template packet<LoadMode>(row, col), m_rhs.template packet<LoadMode>(row, col));
     }
 
   protected:
diff --git a/Eigen/src/Core/CwiseNullaryOp.h b/Eigen/src/Core/CwiseNullaryOp.h
index 1e1ed78a5..069fad8a2 100644
--- a/Eigen/src/Core/CwiseNullaryOp.h
+++ b/Eigen/src/Core/CwiseNullaryOp.h
@@ -50,7 +50,7 @@ struct ei_traits<CwiseNullaryOp<NullaryOp, MatrixType> >
     MaxRowsAtCompileTime = MatrixType::MaxRowsAtCompileTime,
     MaxColsAtCompileTime = MatrixType::MaxColsAtCompileTime,
     Flags = (MatrixType::Flags
-      & (HereditaryBits | Like1DArrayBit | (ei_functor_traits<NullaryOp>::IsVectorizable ? VectorizableBit : 0)))
+      & (HereditaryBits | LinearAccessBit | (ei_functor_traits<NullaryOp>::PacketAccess ? PacketAccessBit : 0)))
       | (ei_functor_traits<NullaryOp>::IsRepeatable ? 0 : EvalBeforeNestingBit),
     CoeffReadCost = ei_functor_traits<NullaryOp>::Cost
   };
@@ -84,7 +84,7 @@ class CwiseNullaryOp : ei_no_assignment_operator,
     }
 
     template<int LoadMode>
-    PacketScalar _packetCoeff(int, int) const
+    PacketScalar _packet(int, int) const
     {
       return m_functor.packetOp();
     }
diff --git a/Eigen/src/Core/CwiseUnaryOp.h b/Eigen/src/Core/CwiseUnaryOp.h
index 8715f931e..10228e3ec 100644
--- a/Eigen/src/Core/CwiseUnaryOp.h
+++ b/Eigen/src/Core/CwiseUnaryOp.h
@@ -55,8 +55,8 @@ struct ei_traits<CwiseUnaryOp<UnaryOp, MatrixType> >
     MaxRowsAtCompileTime = MatrixType::MaxRowsAtCompileTime,
     MaxColsAtCompileTime = MatrixType::MaxColsAtCompileTime,
     Flags = (MatrixTypeFlags & (
-      HereditaryBits | Like1DArrayBit
-      | (ei_functor_traits<UnaryOp>::IsVectorizable ? VectorizableBit : 0))),
+      HereditaryBits | LinearAccessBit
+      | (ei_functor_traits<UnaryOp>::PacketAccess ? PacketAccessBit : 0))),
     CoeffReadCost = MatrixTypeCoeffReadCost + ei_functor_traits<UnaryOp>::Cost
   };
 };
@@ -83,9 +83,9 @@ class CwiseUnaryOp : ei_no_assignment_operator,
     }
 
     template<int LoadMode>
-    inline PacketScalar _packetCoeff(int row, int col) const
+    inline PacketScalar _packet(int row, int col) const
     {
-      return m_functor.packetOp(m_matrix.template packetCoeff<LoadMode>(row, col));
+      return m_functor.packetOp(m_matrix.template packet<LoadMode>(row, col));
     }
 
   protected:
diff --git a/Eigen/src/Core/DiagonalProduct.h b/Eigen/src/Core/DiagonalProduct.h
index 5663942ff..11bc36e16 100644
--- a/Eigen/src/Core/DiagonalProduct.h
+++ b/Eigen/src/Core/DiagonalProduct.h
@@ -41,14 +41,14 @@ struct ei_traits<Product<Lhs, Rhs, DiagonalProduct> >
     ColsAtCompileTime = Rhs::ColsAtCompileTime,
     MaxRowsAtCompileTime = Lhs::MaxRowsAtCompileTime,
     MaxColsAtCompileTime = Rhs::MaxColsAtCompileTime,
-    _RhsVectorizable =  (RhsFlags & RowMajorBit) && (RhsFlags & VectorizableBit)
+    _RhsPacketAccess =  (RhsFlags & RowMajorBit) && (RhsFlags & PacketAccessBit)
                      && (ColsAtCompileTime % ei_packet_traits<Scalar>::size == 0),
-    _LhsVectorizable =  (!(LhsFlags & RowMajorBit)) && (LhsFlags & VectorizableBit)
+    _LhsPacketAccess =  (!(LhsFlags & RowMajorBit)) && (LhsFlags & PacketAccessBit)
                      && (RowsAtCompileTime % ei_packet_traits<Scalar>::size == 0),
-    _LostBits = ~(((RhsFlags & RowMajorBit) && (!_LhsVectorizable) ? 0 : RowMajorBit)
+    _LostBits = ~(((RhsFlags & RowMajorBit) && (!_LhsPacketAccess) ? 0 : RowMajorBit)
                 | ((RowsAtCompileTime == Dynamic || ColsAtCompileTime == Dynamic) ? 0 : LargeBit)),
     Flags = ((unsigned int)(LhsFlags | RhsFlags) & HereditaryBits & _LostBits)
-          | (_LhsVectorizable || _RhsVectorizable ? VectorizableBit : 0),
+          | (_LhsPacketAccess || _RhsPacketAccess ? PacketAccessBit : 0),
     CoeffReadCost = NumTraits<Scalar>::MulCost + _LhsNested::CoeffReadCost + _RhsNested::CoeffReadCost
   };
 };
@@ -86,17 +86,17 @@ template<typename Lhs, typename Rhs> class Product<Lhs, Rhs, DiagonalProduct> :
     }
 
     template<int LoadMode>
-    const PacketScalar _packetCoeff(int row, int col) const
+    const PacketScalar _packet(int row, int col) const
     {
       if ((Rhs::Flags&Diagonal)==Diagonal)
       {
         ei_assert((_LhsNested::Flags&RowMajorBit)==0);
-        return ei_pmul(m_lhs.template packetCoeff<LoadMode>(row, col), ei_pset1(m_rhs.coeff(col, col)));
+        return ei_pmul(m_lhs.template packet<LoadMode>(row, col), ei_pset1(m_rhs.coeff(col, col)));
       }
       else
       {
         ei_assert(_RhsNested::Flags&RowMajorBit);
-        return ei_pmul(ei_pset1(m_lhs.coeff(row, row)), m_rhs.template packetCoeff<LoadMode>(row, col));
+        return ei_pmul(ei_pset1(m_lhs.coeff(row, row)), m_rhs.template packet<LoadMode>(row, col));
       }
     }
 
diff --git a/Eigen/src/Core/Extract.h b/Eigen/src/Core/Extract.h
index 6671e45b2..473ff7d6b 100755
--- a/Eigen/src/Core/Extract.h
+++ b/Eigen/src/Core/Extract.h
@@ -53,7 +53,7 @@ struct ei_traits<Extract<MatrixType, Mode> >
     ColsAtCompileTime = MatrixType::ColsAtCompileTime,
     MaxRowsAtCompileTime = MatrixType::MaxRowsAtCompileTime,
     MaxColsAtCompileTime = MatrixType::MaxColsAtCompileTime,
-    Flags = (_MatrixTypeNested::Flags & ~(VectorizableBit | Like1DArrayBit | DirectAccessBit)) | Mode,
+    Flags = (_MatrixTypeNested::Flags & ~(PacketAccessBit | LinearAccessBit | DirectAccessBit)) | Mode,
     CoeffReadCost = _MatrixTypeNested::CoeffReadCost
   };
 };
diff --git a/Eigen/src/Core/Flagged.h b/Eigen/src/Core/Flagged.h
index 54a081f1e..edf1b3fd1 100644
--- a/Eigen/src/Core/Flagged.h
+++ b/Eigen/src/Core/Flagged.h
@@ -85,15 +85,15 @@ template<typename ExpressionType, unsigned int Added, unsigned int Removed> clas
     }
 
     template<int LoadMode>
-    inline const PacketScalar _packetCoeff(int row, int col) const
+    inline const PacketScalar _packet(int row, int col) const
     {
-      return m_matrix.template packetCoeff<LoadMode>(row, col);
+      return m_matrix.template packet<LoadMode>(row, col);
     }
 
     template<int LoadMode>
-    inline void _writePacketCoeff(int row, int col, const PacketScalar& x)
+    inline void _writePacket(int row, int col, const PacketScalar& x)
     {
-      m_matrix.const_cast_derived().template writePacketCoeff<LoadMode>(row, col, x);
+      m_matrix.const_cast_derived().template writePacket<LoadMode>(row, col, x);
     }
 
   protected:
diff --git a/Eigen/src/Core/Functors.h b/Eigen/src/Core/Functors.h
index f3ffe10aa..80b0e4ac7 100644
--- a/Eigen/src/Core/Functors.h
+++ b/Eigen/src/Core/Functors.h
@@ -42,7 +42,7 @@ template<typename Scalar>
 struct ei_functor_traits<ei_scalar_sum_op<Scalar> > {
   enum {
     Cost = NumTraits<Scalar>::AddCost,
-    IsVectorizable = ei_packet_traits<Scalar>::size>1
+    PacketAccess = ei_packet_traits<Scalar>::size>1
   };
 };
 
@@ -61,7 +61,7 @@ template<typename Scalar>
 struct ei_functor_traits<ei_scalar_product_op<Scalar> > {
   enum {
     Cost = NumTraits<Scalar>::MulCost,
-    IsVectorizable = ei_packet_traits<Scalar>::size>1
+    PacketAccess = ei_packet_traits<Scalar>::size>1
   };
 };
 
@@ -80,7 +80,7 @@ template<typename Scalar>
 struct ei_functor_traits<ei_scalar_min_op<Scalar> > {
   enum {
     Cost = NumTraits<Scalar>::AddCost,
-    IsVectorizable = ei_packet_traits<Scalar>::size>1
+    PacketAccess = ei_packet_traits<Scalar>::size>1
   };
 };
 
@@ -99,7 +99,7 @@ template<typename Scalar>
 struct ei_functor_traits<ei_scalar_max_op<Scalar> > {
   enum {
     Cost = NumTraits<Scalar>::AddCost,
-    IsVectorizable = ei_packet_traits<Scalar>::size>1
+    PacketAccess = ei_packet_traits<Scalar>::size>1
   };
 };
 
@@ -121,7 +121,7 @@ template<typename Scalar>
 struct ei_functor_traits<ei_scalar_difference_op<Scalar> > {
   enum {
     Cost = NumTraits<Scalar>::AddCost,
-    IsVectorizable = ei_packet_traits<Scalar>::size>1
+    PacketAccess = ei_packet_traits<Scalar>::size>1
   };
 };
 
@@ -135,7 +135,7 @@ template<typename Scalar> struct ei_scalar_quotient_op EIGEN_EMPTY_STRUCT {
 };
 template<typename Scalar>
 struct ei_functor_traits<ei_scalar_quotient_op<Scalar> >
-{ enum { Cost = 2 * NumTraits<Scalar>::MulCost, IsVectorizable = false }; };
+{ enum { Cost = 2 * NumTraits<Scalar>::MulCost, PacketAccess = false }; };
 
 
 // unary functors:
@@ -150,7 +150,7 @@ template<typename Scalar> struct ei_scalar_opposite_op EIGEN_EMPTY_STRUCT {
 };
 template<typename Scalar>
 struct ei_functor_traits<ei_scalar_opposite_op<Scalar> >
-{ enum { Cost = NumTraits<Scalar>::AddCost, IsVectorizable = false }; };
+{ enum { Cost = NumTraits<Scalar>::AddCost, PacketAccess = false }; };
 
 /** \internal
   * \brief Template functor to compute the absolute value of a scalar
@@ -163,7 +163,7 @@ template<typename Scalar> struct ei_scalar_abs_op EIGEN_EMPTY_STRUCT {
 };
 template<typename Scalar>
 struct ei_functor_traits<ei_scalar_abs_op<Scalar> >
-{ enum { Cost = NumTraits<Scalar>::AddCost, IsVectorizable = false }; };
+{ enum { Cost = NumTraits<Scalar>::AddCost, PacketAccess = false }; };
 
 /** \internal
   * \brief Template functor to compute the squared absolute value of a scalar
@@ -176,7 +176,7 @@ template<typename Scalar> struct ei_scalar_abs2_op EIGEN_EMPTY_STRUCT {
 };
 template<typename Scalar>
 struct ei_functor_traits<ei_scalar_abs2_op<Scalar> >
-{ enum { Cost = NumTraits<Scalar>::MulCost, IsVectorizable = false }; };
+{ enum { Cost = NumTraits<Scalar>::MulCost, PacketAccess = false }; };
 
 /** \internal
   * \brief Template functor to compute the conjugate of a complex value
@@ -188,7 +188,7 @@ template<typename Scalar> struct ei_scalar_conjugate_op EIGEN_EMPTY_STRUCT {
 };
 template<typename Scalar>
 struct ei_functor_traits<ei_scalar_conjugate_op<Scalar> >
-{ enum { Cost = NumTraits<Scalar>::IsComplex ? NumTraits<Scalar>::AddCost : 0, IsVectorizable = false }; };
+{ enum { Cost = NumTraits<Scalar>::IsComplex ? NumTraits<Scalar>::AddCost : 0, PacketAccess = false }; };
 
 /** \internal
   * \brief Template functor to cast a scalar to another type
@@ -202,7 +202,7 @@ struct ei_scalar_cast_op EIGEN_EMPTY_STRUCT {
 };
 template<typename Scalar, typename NewType>
 struct ei_functor_traits<ei_scalar_cast_op<Scalar,NewType> >
-{ enum { Cost = ei_is_same_type<Scalar, NewType>::ret ? 0 : NumTraits<NewType>::AddCost, IsVectorizable = false }; };
+{ enum { Cost = ei_is_same_type<Scalar, NewType>::ret ? 0 : NumTraits<NewType>::AddCost, PacketAccess = false }; };
 
 /** \internal
   * \brief Template functor to extract the real part of a complex
@@ -216,14 +216,14 @@ struct ei_scalar_real_op EIGEN_EMPTY_STRUCT {
 };
 template<typename Scalar>
 struct ei_functor_traits<ei_scalar_real_op<Scalar> >
-{ enum { Cost =  0, IsVectorizable = false }; };
+{ enum { Cost =  0, PacketAccess = false }; };
 
 /** \internal
   * \brief Template functor to multiply a scalar by a fixed other one
   *
   * \sa class CwiseUnaryOp, MatrixBase::operator*, MatrixBase::operator/
   */
-template<typename Scalar, bool IsVectorizable = (int(ei_packet_traits<Scalar>::size)>1?true:false) > struct ei_scalar_multiple_op;
+template<typename Scalar, bool PacketAccess = (int(ei_packet_traits<Scalar>::size)>1?true:false) > struct ei_scalar_multiple_op;
 
 template<typename Scalar>
 struct ei_scalar_multiple_op<Scalar,true> {
@@ -242,7 +242,7 @@ struct ei_scalar_multiple_op<Scalar,false> {
 };
 template<typename Scalar>
 struct ei_functor_traits<ei_scalar_multiple_op<Scalar> >
-{ enum { Cost = NumTraits<Scalar>::MulCost, IsVectorizable = ei_packet_traits<Scalar>::size>1 }; };
+{ enum { Cost = NumTraits<Scalar>::MulCost, PacketAccess = ei_packet_traits<Scalar>::size>1 }; };
 
 template<typename Scalar, bool HasFloatingPoint>
 struct ei_scalar_quotient1_impl {
@@ -252,7 +252,7 @@ struct ei_scalar_quotient1_impl {
 };
 template<typename Scalar>
 struct ei_functor_traits<ei_scalar_quotient1_impl<Scalar,true> >
-{ enum { Cost = NumTraits<Scalar>::MulCost, IsVectorizable = false }; };
+{ enum { Cost = NumTraits<Scalar>::MulCost, PacketAccess = false }; };
 
 template<typename Scalar>
 struct ei_scalar_quotient1_impl<Scalar,false> {
@@ -263,7 +263,7 @@ struct ei_scalar_quotient1_impl<Scalar,false> {
 };
 template<typename Scalar>
 struct ei_functor_traits<ei_scalar_quotient1_impl<Scalar,false> >
-{ enum { Cost = 2 * NumTraits<Scalar>::MulCost, IsVectorizable = false }; };
+{ enum { Cost = 2 * NumTraits<Scalar>::MulCost, PacketAccess = false }; };
 
 /** \internal
   * \brief Template functor to divide a scalar by a fixed other one
@@ -281,7 +281,7 @@ struct ei_scalar_quotient1_op : ei_scalar_quotient1_impl<Scalar, NumTraits<Scala
 
 // nullary functors
 
-template<typename Scalar, bool IsVectorizable = (int(ei_packet_traits<Scalar>::size)>1?true:false) > struct ei_scalar_constant_op;
+template<typename Scalar, bool PacketAccess = (int(ei_packet_traits<Scalar>::size)>1?true:false) > struct ei_scalar_constant_op;
 
 template<typename Scalar>
 struct ei_scalar_constant_op<Scalar,true> {
@@ -300,7 +300,7 @@ struct ei_scalar_constant_op<Scalar,false> {
 };
 template<typename Scalar>
 struct ei_functor_traits<ei_scalar_constant_op<Scalar> >
-{ enum { Cost = 1, IsVectorizable = ei_packet_traits<Scalar>::size>1, IsRepeatable = true }; };
+{ enum { Cost = 1, PacketAccess = ei_packet_traits<Scalar>::size>1, IsRepeatable = true }; };
 
 template<typename Scalar> struct ei_scalar_identity_op EIGEN_EMPTY_STRUCT {
   inline ei_scalar_identity_op(void) {}
@@ -308,6 +308,6 @@ template<typename Scalar> struct ei_scalar_identity_op EIGEN_EMPTY_STRUCT {
 };
 template<typename Scalar>
 struct ei_functor_traits<ei_scalar_identity_op<Scalar> >
-{ enum { Cost = NumTraits<Scalar>::AddCost, IsVectorizable = false, IsRepeatable = true }; };
+{ enum { Cost = NumTraits<Scalar>::AddCost, PacketAccess = false, IsRepeatable = true }; };
 
 #endif // EIGEN_FUNCTORS_H
diff --git a/Eigen/src/Core/Matrix.h b/Eigen/src/Core/Matrix.h
index 6fcc76719..e14999445 100644
--- a/Eigen/src/Core/Matrix.h
+++ b/Eigen/src/Core/Matrix.h
@@ -137,9 +137,9 @@ class Matrix : public MatrixBase<Matrix<_Scalar, _Rows, _Cols, _MaxRows, _MaxCol
     }
 
     template<int LoadMode>
-    inline PacketScalar _packetCoeff(int row, int col) const
+    inline PacketScalar _packet(int row, int col) const
     {
-      ei_internal_assert(Flags & VectorizableBit);
+      ei_internal_assert(Flags & PacketAccessBit);
       if(Flags & RowMajorBit)
         if (LoadMode==Aligned)
           return ei_pload(&m_storage.data()[col + row * m_storage.cols()]);
@@ -153,9 +153,9 @@ class Matrix : public MatrixBase<Matrix<_Scalar, _Rows, _Cols, _MaxRows, _MaxCol
     }
 
     template<int StoreMode>
-    inline void _writePacketCoeff(int row, int col, const PacketScalar& x)
+    inline void _writePacket(int row, int col, const PacketScalar& x)
     {
-      ei_internal_assert(Flags & VectorizableBit);
+      ei_internal_assert(Flags & PacketAccessBit);
       if(Flags & RowMajorBit)
         if (StoreMode==Aligned)
           ei_pstore(&m_storage.data()[col + row * m_storage.cols()], x);
diff --git a/Eigen/src/Core/MatrixBase.h b/Eigen/src/Core/MatrixBase.h
index 5bcd6991d..754a1ec98 100644
--- a/Eigen/src/Core/MatrixBase.h
+++ b/Eigen/src/Core/MatrixBase.h
@@ -229,9 +229,9 @@ template<typename Derived> class MatrixBase : public ArrayBase<Derived>
     Scalar& operator[](int index);
 
     template<int LoadMode>
-    PacketScalar packetCoeff(int row, int col) const;
+    PacketScalar packet(int row, int col) const;
     template<int StoreMode>
-    void writePacketCoeff(int row, int col, const PacketScalar& x);
+    void writePacket(int row, int col, const PacketScalar& x);
 
     const Scalar x() const;
     const Scalar y() const;
diff --git a/Eigen/src/Core/NestByValue.h b/Eigen/src/Core/NestByValue.h
index 51f38e8d8..0c6cdb114 100644
--- a/Eigen/src/Core/NestByValue.h
+++ b/Eigen/src/Core/NestByValue.h
@@ -77,15 +77,15 @@ template<typename ExpressionType> class NestByValue
     }
 
     template<int LoadMode>
-    inline const PacketScalar _packetCoeff(int row, int col) const
+    inline const PacketScalar _packet(int row, int col) const
     {
-      return m_expression.template packetCoeff<LoadMode>(row, col);
+      return m_expression.template packet<LoadMode>(row, col);
     }
 
     template<int LoadMode>
-    inline void _writePacketCoeff(int row, int col, const PacketScalar& x)
+    inline void _writePacket(int row, int col, const PacketScalar& x)
     {
-      m_expression.const_cast_derived().template writePacketCoeff<LoadMode>(row, col, x);
+      m_expression.const_cast_derived().template writePacket<LoadMode>(row, col, x);
     }
 
   protected:
diff --git a/Eigen/src/Core/Product.h b/Eigen/src/Core/Product.h
index 857a389d6..8d4ed8779 100644
--- a/Eigen/src/Core/Product.h
+++ b/Eigen/src/Core/Product.h
@@ -76,7 +76,7 @@ struct ei_packet_product_impl<true, Index, Size, Lhs, Rhs, PacketScalar>
   inline static void run(int row, int col, const Lhs& lhs, const Rhs& rhs, PacketScalar &res)
   {
     ei_packet_product_impl<true, Index-1, Size, Lhs, Rhs, PacketScalar>::run(row, col, lhs, rhs, res);
-    res =  ei_pmadd(ei_pset1(lhs.coeff(row, Index)), rhs.template packetCoeff<Aligned>(Index, col), res);
+    res =  ei_pmadd(ei_pset1(lhs.coeff(row, Index)), rhs.template packet<Aligned>(Index, col), res);
   }
 };
 
@@ -86,7 +86,7 @@ struct ei_packet_product_impl<false, Index, Size, Lhs, Rhs, PacketScalar>
   inline static void run(int row, int col, const Lhs& lhs, const Rhs& rhs, PacketScalar &res)
   {
     ei_packet_product_impl<false, Index-1, Size, Lhs, Rhs, PacketScalar>::run(row, col, lhs, rhs, res);
-    res =  ei_pmadd(lhs.template packetCoeff<Aligned>(row, Index), ei_pset1(rhs.coeff(Index, col)), res);
+    res =  ei_pmadd(lhs.template packet<Aligned>(row, Index), ei_pset1(rhs.coeff(Index, col)), res);
   }
 };
 
@@ -95,7 +95,7 @@ struct ei_packet_product_impl<true, 0, Size, Lhs, Rhs, PacketScalar>
 {
   inline static void run(int row, int col, const Lhs& lhs, const Rhs& rhs, PacketScalar &res)
   {
-    res = ei_pmul(ei_pset1(lhs.coeff(row, 0)),rhs.template packetCoeff<Aligned>(0, col));
+    res = ei_pmul(ei_pset1(lhs.coeff(row, 0)),rhs.template packet<Aligned>(0, col));
   }
 };
 
@@ -104,7 +104,7 @@ struct ei_packet_product_impl<false, 0, Size, Lhs, Rhs, PacketScalar>
 {
   inline static void run(int row, int col, const Lhs& lhs, const Rhs& rhs, PacketScalar &res)
   {
-    res = ei_pmul(lhs.template packetCoeff<Aligned>(row, 0), ei_pset1(rhs.coeff(0, col)));
+    res = ei_pmul(lhs.template packet<Aligned>(row, 0), ei_pset1(rhs.coeff(0, col)));
   }
 };
 
@@ -113,9 +113,9 @@ struct ei_packet_product_impl<RowMajor, Index, Dynamic, Lhs, Rhs, PacketScalar>
 {
   inline static void run(int row, int col, const Lhs& lhs, const Rhs& rhs, PacketScalar& res)
   {
-    res = ei_pmul(ei_pset1(lhs.coeff(row, 0)),rhs.template packetCoeff<Aligned>(0, col));
+    res = ei_pmul(ei_pset1(lhs.coeff(row, 0)),rhs.template packet<Aligned>(0, col));
       for(int i = 1; i < lhs.cols(); i++)
-        res =  ei_pmadd(ei_pset1(lhs.coeff(row, i)), rhs.template packetCoeff<Aligned>(i, col), res);
+        res =  ei_pmadd(ei_pset1(lhs.coeff(row, i)), rhs.template packet<Aligned>(i, col), res);
   }
 };
 
@@ -124,9 +124,9 @@ struct ei_packet_product_impl<false, Index, Dynamic, Lhs, Rhs, PacketScalar>
 {
   inline static void run(int row, int col, const Lhs& lhs, const Rhs& rhs, PacketScalar& res)
   {
-    res = ei_pmul(lhs.template packetCoeff<Aligned>(row, 0), ei_pset1(rhs.coeff(0, col)));
+    res = ei_pmul(lhs.template packet<Aligned>(row, 0), ei_pset1(rhs.coeff(0, col)));
       for(int i = 1; i < lhs.cols(); i++)
-        res =  ei_pmadd(lhs.template packetCoeff<Aligned>(row, i), ei_pset1(rhs.coeff(i, col)), res);
+        res =  ei_pmadd(lhs.template packet<Aligned>(row, i), ei_pset1(rhs.coeff(i, col)), res);
   }
 };
 
@@ -210,17 +210,17 @@ struct ei_traits<Product<Lhs, Rhs, EvalMode> >
     MaxColsAtCompileTime = Rhs::MaxColsAtCompileTime,
     // the vectorization flags are only used by the normal product,
     // the other one is always vectorized !
-    _RhsVectorizable = (RhsFlags & RowMajorBit) && (RhsFlags & VectorizableBit) && (ColsAtCompileTime % ei_packet_traits<Scalar>::size == 0),
-    _LhsVectorizable = (!(LhsFlags & RowMajorBit)) && (LhsFlags & VectorizableBit) && (RowsAtCompileTime % ei_packet_traits<Scalar>::size == 0),
-    _Vectorizable = (_LhsVectorizable || _RhsVectorizable) ? 1 : 0,
+    _RhsPacketAccess = (RhsFlags & RowMajorBit) && (RhsFlags & PacketAccessBit) && (ColsAtCompileTime % ei_packet_traits<Scalar>::size == 0),
+    _LhsPacketAccess = (!(LhsFlags & RowMajorBit)) && (LhsFlags & PacketAccessBit) && (RowsAtCompileTime % ei_packet_traits<Scalar>::size == 0),
+    _PacketAccess = (_LhsPacketAccess || _RhsPacketAccess) ? 1 : 0,
     _RowMajor = (RhsFlags & RowMajorBit)
-              && (EvalMode==(int)CacheFriendlyProduct ? (int)LhsFlags & RowMajorBit : (!_LhsVectorizable)),
+              && (EvalMode==(int)CacheFriendlyProduct ? (int)LhsFlags & RowMajorBit : (!_LhsPacketAccess)),
     _LostBits = ~((_RowMajor ? 0 : RowMajorBit)
                 | ((RowsAtCompileTime == Dynamic || ColsAtCompileTime == Dynamic) ? 0 : LargeBit)),
     Flags = ((unsigned int)(LhsFlags | RhsFlags) & HereditaryBits & _LostBits)
           | EvalBeforeAssigningBit
           | EvalBeforeNestingBit
-          | (_Vectorizable ? VectorizableBit : 0),
+          | (_PacketAccess ? PacketAccessBit : 0),
     CoeffReadCost
       = Lhs::ColsAtCompileTime == Dynamic
       ? Dynamic
@@ -276,7 +276,7 @@ template<typename Lhs, typename Rhs, int EvalMode> class Product : ei_no_assignm
     }
 
     template<int LoadMode>
-    const PacketScalar _packetCoeff(int row, int col) const
+    const PacketScalar _packet(int row, int col) const
     {
       const bool unroll = CoeffReadCost <= EIGEN_UNROLLING_LIMIT;
       PacketScalar res;
diff --git a/Eigen/src/Core/Transpose.h b/Eigen/src/Core/Transpose.h
index 86eecadd5..ddac5fa63 100644
--- a/Eigen/src/Core/Transpose.h
+++ b/Eigen/src/Core/Transpose.h
@@ -49,7 +49,7 @@ struct ei_traits<Transpose<MatrixType> >
     MaxRowsAtCompileTime = MatrixType::MaxColsAtCompileTime,
     MaxColsAtCompileTime = MatrixType::MaxRowsAtCompileTime,
     Flags = ((int(_MatrixTypeNested::Flags) ^ RowMajorBit)
-          & ~( Like1DArrayBit | LowerTriangularBit | UpperTriangularBit))
+          & ~( LinearAccessBit | LowerTriangularBit | UpperTriangularBit))
           | (int(_MatrixTypeNested::Flags)&UpperTriangularBit ? LowerTriangularBit : 0)
           | (int(_MatrixTypeNested::Flags)&LowerTriangularBit ? UpperTriangularBit : 0),
     CoeffReadCost = _MatrixTypeNested::CoeffReadCost
@@ -85,15 +85,15 @@ template<typename MatrixType> class Transpose
     }
 
     template<int LoadMode>
-    inline const PacketScalar _packetCoeff(int row, int col) const
+    inline const PacketScalar _packet(int row, int col) const
     {
-      return m_matrix.template packetCoeff<LoadMode>(col, row);
+      return m_matrix.template packet<LoadMode>(col, row);
     }
 
     template<int LoadMode>
-    inline void _writePacketCoeff(int row, int col, const PacketScalar& x)
+    inline void _writePacket(int row, int col, const PacketScalar& x)
     {
-      m_matrix.const_cast_derived().template writePacketCoeff<LoadMode>(col, row, x);
+      m_matrix.const_cast_derived().template writePacket<LoadMode>(col, row, x);
     }
 
   protected:
diff --git a/Eigen/src/Core/util/Constants.h b/Eigen/src/Core/util/Constants.h
index fab5b1321..9cac3e984 100644
--- a/Eigen/src/Core/util/Constants.h
+++ b/Eigen/src/Core/util/Constants.h
@@ -67,15 +67,15 @@ const unsigned int LargeBit = 0x8;
 /** \ingroup flags
   *
   * means the expression might be vectorized */
-const unsigned int VectorizableBit = 0x10;
+const unsigned int PacketAccessBit = 0x10;
 #else
-const unsigned int VectorizableBit = 0x0;
+const unsigned int PacketAccessBit = 0x0;
 #endif
 
 /** \ingroup flags
   *
   * means the expression can be seen as 1D vector (used for explicit vectorization) */
-const unsigned int Like1DArrayBit = 0x20;
+const unsigned int LinearAccessBit = 0x20;
 
 /** \ingroup flags
   *
diff --git a/Eigen/src/Core/util/ForwardDeclarations.h b/Eigen/src/Core/util/ForwardDeclarations.h
index f586b15d9..6a3810df6 100644
--- a/Eigen/src/Core/util/ForwardDeclarations.h
+++ b/Eigen/src/Core/util/ForwardDeclarations.h
@@ -81,7 +81,7 @@ template<typename Scalar> struct ei_scalar_sin_op;
 template<typename Scalar> struct ei_scalar_pow_op;
 template<typename Scalar> struct ei_scalar_inverse_op;
 template<typename Scalar, typename NewType> struct ei_scalar_cast_op;
-template<typename Scalar, bool IsVectorizable> struct ei_scalar_multiple_op;
+template<typename Scalar, bool PacketAccess> struct ei_scalar_multiple_op;
 template<typename Scalar> struct ei_scalar_quotient1_op;
 template<typename Scalar> struct ei_scalar_min_op;
 template<typename Scalar> struct ei_scalar_max_op;
diff --git a/Eigen/src/Core/util/Meta.h b/Eigen/src/Core/util/Meta.h
index e50b3bb81..de732f373 100644
--- a/Eigen/src/Core/util/Meta.h
+++ b/Eigen/src/Core/util/Meta.h
@@ -137,7 +137,7 @@ template<typename T> struct ei_functor_traits
   enum
   {
     Cost = 10,
-    IsVectorizable = false
+    PacketAccess = false
   };
 };
 
@@ -157,18 +157,18 @@ class ei_corrected_matrix_flags
                          : Cols > 1 ? RowMajorBit : 0,
            is_big = MaxRows == Dynamic || MaxCols == Dynamic,
            inner_size = row_major_bit ? Cols : Rows,
-           vectorizable_bit
+           packet_access_bit
             = ei_packet_traits<Scalar>::size > 1
               && (is_big || inner_size%ei_packet_traits<Scalar>::size==0)
-              ? VectorizableBit : 0,
+              ? PacketAccessBit : 0,
           
-          _flags1 = (SuggestedFlags & ~(EvalBeforeNestingBit | EvalBeforeAssigningBit | VectorizableBit | RowMajorBit))
-                                    | Like1DArrayBit | DirectAccessBit
+          _flags1 = (SuggestedFlags & ~(EvalBeforeNestingBit | EvalBeforeAssigningBit | PacketAccessBit | RowMajorBit))
+                                    | LinearAccessBit | DirectAccessBit
     };
 
   public:
-    enum { ret = (SuggestedFlags & ~(EvalBeforeNestingBit | EvalBeforeAssigningBit | VectorizableBit | RowMajorBit))
-                                    | Like1DArrayBit | DirectAccessBit | vectorizable_bit | row_major_bit
+    enum { ret = (SuggestedFlags & ~(EvalBeforeNestingBit | EvalBeforeAssigningBit | PacketAccessBit | RowMajorBit))
+                                    | LinearAccessBit | DirectAccessBit | packet_access_bit | row_major_bit
     };
 };