Set of fixes and workaround to make sun studio more happy.

Still remains the problem of alignment and vectorization.

Eigen/Core

@@ -88,6 +88,8 @@
 #include <cstring>
 #include <string>
 #include <limits>
+// for min/max:
+#include <algorithm>
 
 #if (defined(_CPPUNWIND) || defined(__EXCEPTIONS)) && !defined(EIGEN_NO_EXCEPTIONS)
   #define EIGEN_EXCEPTIONS

Eigen/src/Array/Replicate.h

@@ -140,21 +140,4 @@ VectorwiseOp<ExpressionType,Direction>::replicate(int factor) const
           (_expression(),Direction==Vertical?factor:1,Direction==Horizontal?factor:1);
 }
 
-/** \nonstableyet
-  * \return an expression of the replication of each column (or row) of \c *this
-  *
-  * Example: \include DirectionWise_replicate.cpp
-  * Output: \verbinclude DirectionWise_replicate.out
-  *
-  * \sa VectorwiseOp::replicate(int), MatrixBase::replicate(), class Replicate
-  */
-template<typename ExpressionType, int Direction>
-template<int Factor>
-const Replicate<ExpressionType,(Direction==Vertical?Factor:1),(Direction==Horizontal?Factor:1)>
-VectorwiseOp<ExpressionType,Direction>::replicate(int factor) const
-{
-  return Replicate<ExpressionType,Direction==Vertical?Factor:1,Direction==Horizontal?Factor:1>
-          (_expression(),Direction==Vertical?factor:1,Direction==Horizontal?factor:1);
-}
-
 #endif // EIGEN_REPLICATE_H

Eigen/src/Array/VectorwiseOp.h

@@ -179,6 +179,11 @@ template<typename ExpressionType, int Direction> class VectorwiseOp
                               > Type;
     };
 
+    enum {
+      IsVertical   = (Direction==Vertical) ? 1 : 0,
+      IsHorizontal = (Direction==Horizontal) ? 1 : 0
+    };
+
   protected:
 
     /** \internal
@@ -222,9 +227,17 @@ template<typename ExpressionType, int Direction> class VectorwiseOp
     /** \internal */
     inline const ExpressionType& _expression() const { return m_matrix; }
 
+    /** \returns a row or column vector expression of \c *this reduxed by \a func
+      *
+      * The template parameter \a BinaryOp is the type of the functor
+      * of the custom redux operator. Note that func must be an associative operator.
+      *
+      * \sa class VectorwiseOp, MatrixBase::colwise(), MatrixBase::rowwise()
+      */
     template<typename BinaryOp>
     const typename ReduxReturnType<BinaryOp>::Type
-    redux(const BinaryOp& func = BinaryOp()) const;
+    redux(const BinaryOp& func = BinaryOp()) const
+    { return typename ReduxReturnType<BinaryOp>::Type(_expression(), func); }
 
     /** \returns a row (or column) vector expression of the smallest coefficient
       * of each column (or row) of the referenced expression.
@@ -319,16 +332,26 @@ template<typename ExpressionType, int Direction> class VectorwiseOp
       *
       * \sa MatrixBase::reverse() */
     const Reverse<ExpressionType, Direction> reverse() const
-    {
+    { return Reverse<ExpressionType, Direction>( _expression() ); }
-      return Reverse<ExpressionType, Direction>( _expression() );
-    }
 
     const Replicate<ExpressionType,Direction==Vertical?Dynamic:1,Direction==Horizontal?Dynamic:1>
     replicate(int factor) const;
 
-    template<int Factor>
+    /** \nonstableyet
-    const Replicate<ExpressionType,(Direction==Vertical?Factor:1),(Direction==Horizontal?Factor:1)>
+      * \return an expression of the replication of each column (or row) of \c *this
-    replicate(int factor = Factor) const;
+      *
+      * Example: \include DirectionWise_replicate.cpp
+      * Output: \verbinclude DirectionWise_replicate.out
+      *
+      * \sa VectorwiseOp::replicate(int), MatrixBase::replicate(), class Replicate
+      */
+    // NOTE implemented here because of sunstudio's compilation errors
+    template<int Factor> const Replicate<ExpressionType,(IsVertical?Factor:1),(IsHorizontal?Factor:1)>
+    replicate(int factor = Factor) const
+    {
+      return Replicate<ExpressionType,Direction==Vertical?Factor:1,Direction==Horizontal?Factor:1>
+          (_expression(),Direction==Vertical?factor:1,Direction==Horizontal?factor:1);
+    }
 
 /////////// Artithmetic operators ///////////
 
@@ -466,19 +489,4 @@ MatrixBase<Derived>::rowwise()
   return derived();
 }
 
-/** \returns a row or column vector expression of \c *this reduxed by \a func
-  *
-  * The template parameter \a BinaryOp is the type of the functor
-  * of the custom redux operator. Note that func must be an associative operator.
-  *
-  * \sa class VectorwiseOp, MatrixBase::colwise(), MatrixBase::rowwise()
-  */
-template<typename ExpressionType, int Direction>
-template<typename BinaryOp>
-const typename VectorwiseOp<ExpressionType,Direction>::template ReduxReturnType<BinaryOp>::Type
-VectorwiseOp<ExpressionType,Direction>::redux(const BinaryOp& func) const
-{
-  return typename ReduxReturnType<BinaryOp>::Type(_expression(), func);
-}
-
 #endif // EIGEN_PARTIAL_REDUX_H

Eigen/src/Core/Block.h

@@ -271,13 +271,19 @@ class Block<MatrixType,BlockRows,BlockCols,PacketAccess,HasDirectAccess>
 
     inline int stride(void) const { return m_matrix.stride(); }
 
+  #ifndef __SUNPRO_CC
+  // FIXME sunstudio is not friendly with the above friend...
   protected:
+  #endif
 
+    #ifndef EIGEN_PARSED_BY_DOXYGEN
     /** \internal used by allowAligned() */
     inline Block(const MatrixType& matrix, const Scalar* data, int blockRows, int blockCols)
       : Base(data, blockRows, blockCols), m_matrix(matrix)
     {}
+    #endif
 
+  protected:
     const typename MatrixType::Nested m_matrix;
 };
 

Eigen/src/Core/CwiseUnaryView.h

@@ -42,13 +42,13 @@ struct ei_traits<CwiseUnaryView<ViewOp, MatrixType> >
  : ei_traits<MatrixType>
 {
   typedef typename ei_result_of<
-                     ViewOp(typename MatrixType::Scalar)
+                     ViewOp(typename ei_traits<MatrixType>::Scalar)
                    >::type Scalar;
   typedef typename MatrixType::Nested MatrixTypeNested;
   typedef typename ei_unref<MatrixTypeNested>::type _MatrixTypeNested;
   enum {
-    Flags = (_MatrixTypeNested::Flags & (HereditaryBits | LinearAccessBit | AlignedBit)),
+    Flags = (ei_traits<_MatrixTypeNested>::Flags & (HereditaryBits | LinearAccessBit | AlignedBit)),
-    CoeffReadCost = _MatrixTypeNested::CoeffReadCost + ei_functor_traits<ViewOp>::Cost
+    CoeffReadCost = ei_traits<_MatrixTypeNested>::CoeffReadCost + ei_functor_traits<ViewOp>::Cost
   };
 };
 
@@ -89,7 +89,8 @@ class CwiseUnaryView : ei_no_assignment_operator,
     }
 
   protected:
-    const typename MatrixType::Nested m_matrix;
+    // FIXME changed from MatrixType::Nested because of a weird compilation error with sun CC
+    const typename ei_nested<MatrixType>::type m_matrix;
     const ViewOp m_functor;
 };
 

Eigen/src/Core/MapBase.h

@@ -178,6 +178,7 @@ template<typename Derived> class MapBase
     }
 
     using Base::operator*=;
+    using Base::operator+=;
 
     template<typename OtherDerived>
     Derived& operator+=(const MatrixBase<OtherDerived>& other)

Eigen/src/Core/Matrix.h

@@ -124,6 +124,7 @@ class Matrix
 {
   public:
     EIGEN_GENERIC_PUBLIC_INTERFACE(Matrix)
+
     enum { Options = _Options };
     friend class Eigen::Map<Matrix, Unaligned>;
     typedef class Eigen::Map<Matrix, Unaligned> UnalignedMapType;

Eigen/src/Core/MatrixBase.h

@@ -137,10 +137,14 @@ template<typename Derived> class MatrixBase
           * constructed from this one. See the \ref flags "list of flags".
           */
 
-      CoeffReadCost = ei_traits<Derived>::CoeffReadCost
+      CoeffReadCost = ei_traits<Derived>::CoeffReadCost,
         /**< This is a rough measure of how expensive it is to read one coefficient from
           * this expression.
           */
+
+#ifndef EIGEN_PARSED_BY_DOXYGEN
+      _HasDirectAccess = (int(Flags)&DirectAccessBit) ? 1 : 0 // workaround sunCC
+#endif
     };
 
     /** Default constructor. Just checks at compile-time for self-consistency of the flags. */
@@ -204,7 +208,7 @@ template<typename Derived> class MatrixBase
 
     /** \internal the return type of coeff()
       */
-    typedef typename ei_meta_if<bool(int(Flags)&DirectAccessBit), const Scalar&, Scalar>::ret CoeffReturnType;
+    typedef typename ei_meta_if<_HasDirectAccess, const Scalar&, Scalar>::ret CoeffReturnType;
 
     /** \internal Represents a matrix with all coefficients equal to one another*/
     typedef CwiseNullaryOp<ei_scalar_constant_op<Scalar>,Derived> ConstantReturnType;

Eigen/src/Core/Product.h

@@ -83,15 +83,14 @@ struct ProductReturnType<Lhs,Rhs,CacheFriendlyProduct>
 template<typename Lhs, typename Rhs> struct ei_product_mode
 {
   enum{
-
     value = ei_is_diagonal<Rhs>::ret || ei_is_diagonal<Lhs>::ret
           ? DiagonalProduct
-          : Lhs::MaxColsAtCompileTime == Dynamic
+          : ei_traits<Lhs>::MaxColsAtCompileTime == Dynamic
-            && ( Lhs::MaxRowsAtCompileTime == Dynamic
+            && ( ei_traits<Lhs>::MaxRowsAtCompileTime == Dynamic
-              || Rhs::MaxColsAtCompileTime == Dynamic )
+              || ei_traits<Rhs>::MaxColsAtCompileTime == Dynamic )
-            && (!(Rhs::IsVectorAtCompileTime && (Lhs::Flags&RowMajorBit)  && (!(Lhs::Flags&DirectAccessBit))))
+            && (!(ei_traits<Rhs>::IsVectorAtCompileTime && (ei_traits<Lhs>::Flags&RowMajorBit)  && (!(ei_traits<Lhs>::Flags&DirectAccessBit))))
-            && (!(Lhs::IsVectorAtCompileTime && (!(Rhs::Flags&RowMajorBit)) && (!(Rhs::Flags&DirectAccessBit))))
+            && (!(ei_traits<Lhs>::IsVectorAtCompileTime && (!(ei_traits<Rhs>::Flags&RowMajorBit)) && (!(ei_traits<Rhs>::Flags&DirectAccessBit))))
-            && (ei_is_same_type<typename Lhs::Scalar, typename Rhs::Scalar>::ret)
+            && (ei_is_same_type<typename ei_traits<Lhs>::Scalar, typename ei_traits<Rhs>::Scalar>::ret)
           ? CacheFriendlyProduct
           : NormalProduct };
 };
@@ -215,7 +214,7 @@ template<typename LhsNested, typename RhsNested, int ProductMode> class Product
       */
     EIGEN_STRONG_INLINE bool _useCacheFriendlyProduct() const
     {
-      return  m_lhs.cols()>=EIGEN_CACHEFRIENDLY_PRODUCT_THRESHOLD
+      return m_lhs.cols()>=EIGEN_CACHEFRIENDLY_PRODUCT_THRESHOLD
               && (  rows()>=EIGEN_CACHEFRIENDLY_PRODUCT_THRESHOLD
                  || cols()>=EIGEN_CACHEFRIENDLY_PRODUCT_THRESHOLD);
     }

Eigen/src/Core/util/Constants.h

@@ -201,7 +201,7 @@ const unsigned int UnitLowerTriangular = LowerTriangularBit | UnitDiagBit;
 template<typename T> struct ei_is_diagonal
 {
   enum {
-    ret = ( (unsigned int)(T::Flags) & DiagonalBits ) == DiagonalBits
+    ret = ( int(ei_traits<T>::Flags) & DiagonalBits ) == DiagonalBits
   };
 };
 

Eigen/src/Core/util/ForwardDeclarations.h

@@ -97,7 +97,7 @@ template<typename Scalar1,typename Scalar2> struct ei_scalar_multiple2_op;
 struct IOFormat;
 
 template<typename Scalar>
-void ei_cache_friendly_product(
+static void ei_cache_friendly_product(
   int _rows, int _cols, int depth,
   bool _lhsRowMajor, const Scalar* _lhs, int _lhsStride,
   bool _rhsRowMajor, const Scalar* _rhs, int _rhsStride,

Eigen/src/Core/util/Macros.h

@@ -51,7 +51,8 @@
 #define EIGEN_GCC3_OR_OLDER 0
 #endif
 
-#if !EIGEN_GCC_AND_ARCH_DOESNT_WANT_ALIGNMENT && !EIGEN_GCC3_OR_OLDER
+// FIXME vectorization + alignment is completely disabled with sun studio
+#if !EIGEN_GCC_AND_ARCH_DOESNT_WANT_ALIGNMENT && !EIGEN_GCC3_OR_OLDER && !defined(__SUNPRO_CC)
   #define EIGEN_ARCH_WANTS_ALIGNMENT 1
 #else
   #define EIGEN_ARCH_WANTS_ALIGNMENT 0
@@ -199,13 +200,16 @@ using Eigen::ei_cos;
  * vectorized and non-vectorized code.
  */
 #if !EIGEN_ALIGN
-#define EIGEN_ALIGN_128
+  #define EIGEN_ALIGN_128
 #elif (defined __GNUC__)
-#define EIGEN_ALIGN_128 __attribute__((aligned(16)))
+  #define EIGEN_ALIGN_128 __attribute__((aligned(16)))
 #elif (defined _MSC_VER)
-#define EIGEN_ALIGN_128 __declspec(align(16))
+  #define EIGEN_ALIGN_128 __declspec(align(16))
+#elif (defined __SUNPRO_CC)
+  // FIXME not sure about this one:
+  #define EIGEN_ALIGN_128 __attribute__((aligned(16)))
 #else
-#error Please tell me what is the equivalent of __attribute__((aligned(16))) for your compiler
+  #error Please tell me what is the equivalent of __attribute__((aligned(16))) for your compiler
 #endif
 
 #define EIGEN_RESTRICT __restrict

test/array.cpp

@@ -1,7 +1,7 @@
 // This file is part of Eigen, a lightweight C++ template library
 // for linear algebra.
 //
-// Copyright (C) 2008 Gael Guennebaud <g.gael@free.fr>
+// Copyright (C) 2008-2009 Gael Guennebaud <g.gael@free.fr>
 //
 // Eigen is free software; you can redistribute it and/or
 // modify it under the terms of the GNU Lesser General Public