diff --git a/Eigen/Core b/Eigen/Core
index 5ebbd9496..15dae4af0 100644
--- a/Eigen/Core
+++ b/Eigen/Core
@@ -189,6 +189,7 @@ namespace Eigen {
 #include "src/Core/products/SelfadjointRank2Update.h"
 #include "src/Core/products/TriangularMatrixVector.h"
 #include "src/Core/products/TriangularSolverMatrix.h"
+#include "src/Core/products/TriangularMatrixMatrix.h"
 #include "src/Core/BandMatrix.h"
 
 } // namespace Eigen
diff --git a/Eigen/src/Core/products/GeneralMatrixMatrix.h b/Eigen/src/Core/products/GeneralMatrixMatrix.h
index a1be8ea50..66fee793c 100644
--- a/Eigen/src/Core/products/GeneralMatrixMatrix.h
+++ b/Eigen/src/Core/products/GeneralMatrixMatrix.h
@@ -125,7 +125,7 @@ struct ei_gebp_kernel
       // loops on each register blocking of lhs/res
       for(int i=0; i<peeled_mc; i+=mr)
       {
-        const Scalar* blA = &blockA[i*strideA];
+        const Scalar* blA = &blockA[i*strideA+offsetA*mr];
         #ifdef EIGEN_VECTORIZE_SSE
         _mm_prefetch((const char*)(&blA[0]), _MM_HINT_T0);
         #endif
@@ -248,7 +248,7 @@ struct ei_gebp_kernel
       }
       for(int i=peeled_mc; i<rows; i++)
       {
-        const Scalar* blA = &blockA[i*strideA];
+        const Scalar* blA = &blockA[i*strideA+offsetA];
         #ifdef EIGEN_VECTORIZE_SSE
         _mm_prefetch((const char*)(&blA[0]), _MM_HINT_T0);
         #endif
@@ -285,7 +285,7 @@ struct ei_gebp_kernel
     {
       for(int i=0; i<peeled_mc; i+=mr)
       {
-        const Scalar* blA = &blockA[i*strideA];
+        const Scalar* blA = &blockA[i*strideA+offsetA*mr];
         #ifdef EIGEN_VECTORIZE_SSE
         _mm_prefetch((const char*)(&blA[0]), _MM_HINT_T0);
         #endif
@@ -317,7 +317,7 @@ struct ei_gebp_kernel
       }
       for(int i=peeled_mc; i<rows; i++)
       {
-        const Scalar* blA = &blockA[i*strideA];
+        const Scalar* blA = &blockA[i*strideA+offsetA];
         #ifdef EIGEN_VECTORIZE_SSE
         _mm_prefetch((const char*)(&blA[0]), _MM_HINT_T0);
         #endif
@@ -375,17 +375,21 @@ struct ei_gemm_pack_lhs
 //  4  5  6  7   16 17 18 19   25 28
 //  8  9 10 11   20 21 22 23   26 29
 //  .  .  .  .    .  .  .  .    .  .
-template<typename Scalar, int nr>
-struct ei_gemm_pack_rhs<Scalar, nr, ColMajor>
+template<typename Scalar, int nr, bool PanelMode>
+struct ei_gemm_pack_rhs<Scalar, nr, ColMajor, PanelMode>
 {
   enum { PacketSize = ei_packet_traits<Scalar>::size };
-  void operator()(Scalar* blockB, const Scalar* rhs, int rhsStride, Scalar alpha, int depth, int cols)
+  void operator()(Scalar* blockB, const Scalar* rhs, int rhsStride, Scalar alpha, int depth, int cols,
+                  int stride=0, int offset=0)
   {
+    ei_assert(((!PanelMode) && stride==0 && offset==0) || (PanelMode && stride>=depth && offset<=stride));
     bool hasAlpha = alpha != Scalar(1);
     int packet_cols = (cols/nr) * nr;
     int count = 0;
     for(int j2=0; j2<packet_cols; j2+=nr)
     {
+      // skip what we have before
+      if(PanelMode) count += PacketSize * nr * offset;
       const Scalar* b0 = &rhs[(j2+0)*rhsStride];
       const Scalar* b1 = &rhs[(j2+1)*rhsStride];
       const Scalar* b2 = &rhs[(j2+2)*rhsStride];
@@ -418,10 +422,13 @@ struct ei_gemm_pack_rhs<Scalar, nr, ColMajor>
           count += nr*PacketSize;
         }
       }
+      // skip what we have after
+      if(PanelMode) count += PacketSize * nr * (stride-offset-depth);
     }
     // copy the remaining columns one at a time (nr==1)
     for(int j2=packet_cols; j2<cols; ++j2)
     {
+      if(PanelMode) count += PacketSize * offset;
       const Scalar* b0 = &rhs[(j2+0)*rhsStride];
       if (hasAlpha)
       {
@@ -439,34 +446,36 @@ struct ei_gemm_pack_rhs<Scalar, nr, ColMajor>
           count += PacketSize;
         }
       }
+      if(PanelMode) count += PacketSize * (stride-offset-depth);
     }
   }
 };
 
 // this version is optimized for row major matrices
-template<typename Scalar, int nr>
-struct ei_gemm_pack_rhs<Scalar, nr, RowMajor>
+template<typename Scalar, int nr, bool PanelMode>
+struct ei_gemm_pack_rhs<Scalar, nr, RowMajor, PanelMode>
 {
   enum { PacketSize = ei_packet_traits<Scalar>::size };
-  void operator()(Scalar* blockB, const Scalar* rhs, int rhsStride, Scalar alpha, int depth, int cols)
+  void operator()(Scalar* blockB, const Scalar* rhs, int rhsStride, Scalar alpha, int depth, int cols,
+                  int stride=0, int offset=0)
   {
+    ei_assert(((!PanelMode) && stride==0 && offset==0) || (PanelMode && stride>=depth && offset<=stride));
     bool hasAlpha = alpha != Scalar(1);
     int packet_cols = (cols/nr) * nr;
     int count = 0;
     for(int j2=0; j2<packet_cols; j2+=nr)
     {
+      // skip what we have before
+      if(PanelMode) count += PacketSize * nr * offset;
       if (hasAlpha)
       {
         for(int k=0; k<depth; k++)
         {
           const Scalar* b0 = &rhs[k*rhsStride + j2];
-          ei_pstore(&blockB[count+0*PacketSize], ei_pset1(alpha*b0[0]));
-          ei_pstore(&blockB[count+1*PacketSize], ei_pset1(alpha*b0[1]));
-          if (nr==4)
-          {
-            ei_pstore(&blockB[count+2*PacketSize], ei_pset1(alpha*b0[2]));
-            ei_pstore(&blockB[count+3*PacketSize], ei_pset1(alpha*b0[3]));
-          }
+                    ei_pstore(&blockB[count+0*PacketSize], ei_pset1(alpha*b0[0]));
+                    ei_pstore(&blockB[count+1*PacketSize], ei_pset1(alpha*b0[1]));
+          if(nr==4) ei_pstore(&blockB[count+2*PacketSize], ei_pset1(alpha*b0[2]));
+          if(nr==4) ei_pstore(&blockB[count+3*PacketSize], ei_pset1(alpha*b0[3]));
           count += nr*PacketSize;
         }
       }
@@ -475,26 +484,27 @@ struct ei_gemm_pack_rhs<Scalar, nr, RowMajor>
         for(int k=0; k<depth; k++)
         {
           const Scalar* b0 = &rhs[k*rhsStride + j2];
-          ei_pstore(&blockB[count+0*PacketSize], ei_pset1(b0[0]));
-          ei_pstore(&blockB[count+1*PacketSize], ei_pset1(b0[1]));
-          if (nr==4)
-          {
-            ei_pstore(&blockB[count+2*PacketSize], ei_pset1(b0[2]));
-            ei_pstore(&blockB[count+3*PacketSize], ei_pset1(b0[3]));
-          }
+                    ei_pstore(&blockB[count+0*PacketSize], ei_pset1(b0[0]));
+                    ei_pstore(&blockB[count+1*PacketSize], ei_pset1(b0[1]));
+          if(nr==4) ei_pstore(&blockB[count+2*PacketSize], ei_pset1(b0[2]));
+          if(nr==4) ei_pstore(&blockB[count+3*PacketSize], ei_pset1(b0[3]));
           count += nr*PacketSize;
         }
       }
+      // skip what we have after
+      if(PanelMode) count += PacketSize * nr * (stride-offset-depth);
     }
     // copy the remaining columns one at a time (nr==1)
     for(int j2=packet_cols; j2<cols; ++j2)
     {
+      if(PanelMode) count += PacketSize * offset;
       const Scalar* b0 = &rhs[j2];
       for(int k=0; k<depth; k++)
       {
         ei_pstore(&blockB[count], ei_pset1(alpha*b0[k*rhsStride]));
         count += PacketSize;
       }
+      if(PanelMode) count += PacketSize * (stride-offset-depth);
     }
   }
 };
diff --git a/Eigen/src/Core/products/TriangularSolverMatrix.h b/Eigen/src/Core/products/TriangularSolverMatrix.h
index 550076f68..e28aba747 100644
--- a/Eigen/src/Core/products/TriangularSolverMatrix.h
+++ b/Eigen/src/Core/products/TriangularSolverMatrix.h
@@ -25,9 +25,6 @@
 #ifndef EIGEN_TRIANGULAR_SOLVER_MATRIX_H
 #define EIGEN_TRIANGULAR_SOLVER_MATRIX_H
 
-template<typename Scalar, int nr>
-struct ei_gemm_pack_rhs_panel;
-
 // if the rhs is row major, we have to evaluate it in a temporary colmajor matrix
 template <typename Scalar, int LhsStorageOrder, bool ConjugateLhs, int Mode>
 struct ei_triangular_solve_matrix<Scalar,LhsStorageOrder,ConjugateLhs,RowMajor,Mode>
@@ -136,7 +133,7 @@ struct ei_triangular_solve_matrix<Scalar,LhsStorageOrder,ConjugateLhs,ColMajor,M
           int blockBOffset = IsLowerTriangular ? k1 : lengthTarget;
 
           // update the respective rows of B from rhs
-          ei_gemm_pack_rhs_panel<Scalar, Blocking::nr>()
+          ei_gemm_pack_rhs<Scalar, Blocking::nr, ColMajor, true>()
             (blockB, _rhs+startBlock, rhsStride, -1, actualPanelWidth, cols, actual_kc, blockBOffset);
 
           // GEBP
@@ -174,46 +171,4 @@ struct ei_triangular_solve_matrix<Scalar,LhsStorageOrder,ConjugateLhs,ColMajor,M
   }
 };
 
-template<typename Scalar, int nr>
-struct ei_gemm_pack_rhs_panel
-{
-  enum { PacketSize = ei_packet_traits<Scalar>::size };
-  void operator()(Scalar* blockB, const Scalar* rhs, int rhsStride, Scalar alpha, int depth, int cols, int stride, int offset)
-  {
-    int packet_cols = (cols/nr) * nr;
-    int count = 0;
-    for(int j2=0; j2<packet_cols; j2+=nr)
-    {
-      // skip what we have before
-      count += PacketSize * nr * offset;
-      const Scalar* b0 = &rhs[(j2+0)*rhsStride];
-      const Scalar* b1 = &rhs[(j2+1)*rhsStride];
-      const Scalar* b2 = &rhs[(j2+2)*rhsStride];
-      const Scalar* b3 = &rhs[(j2+3)*rhsStride];
-      for(int k=0; k<depth; k++)
-      {
-                  ei_pstore(&blockB[count+0*PacketSize], ei_pset1(alpha*b0[k]));
-                  ei_pstore(&blockB[count+1*PacketSize], ei_pset1(alpha*b1[k]));
-        if(nr==4) ei_pstore(&blockB[count+2*PacketSize], ei_pset1(alpha*b2[k]));
-        if(nr==4) ei_pstore(&blockB[count+3*PacketSize], ei_pset1(alpha*b3[k]));
-        count += nr*PacketSize;
-      }
-      // skip what we have after
-      count += PacketSize * nr * (stride-offset-depth);
-    }
-    // copy the remaining columns one at a time (nr==1)
-    for(int j2=packet_cols; j2<cols; ++j2)
-    {
-      count += PacketSize * offset;
-      const Scalar* b0 = &rhs[(j2+0)*rhsStride];
-      for(int k=0; k<depth; k++)
-      {
-        ei_pstore(&blockB[count], ei_pset1(alpha*b0[k]));
-        count += PacketSize;
-      }
-      count += PacketSize * (stride-offset-depth);
-    }
-  }
-};
-
 #endif // EIGEN_TRIANGULAR_SOLVER_MATRIX_H
diff --git a/Eigen/src/Core/util/BlasUtil.h b/Eigen/src/Core/util/BlasUtil.h
index c3a7289a8..339e11de7 100644
--- a/Eigen/src/Core/util/BlasUtil.h
+++ b/Eigen/src/Core/util/BlasUtil.h
@@ -32,7 +32,7 @@
 template<typename Scalar, int mr, int nr, typename Conj>
 struct ei_gebp_kernel;
 
-template<typename Scalar, int nr, int StorageOrder>
+template<typename Scalar, int nr, int StorageOrder, bool PanelMode=false>
 struct ei_gemm_pack_rhs;
 
 template<typename Scalar, int mr, int StorageOrder, bool Conjugate = false>