Product kernel: skip loop on columns if there is no remaining rows

Eigen/src/Core/products/GeneralBlockPanelKernel.h

diff --git a/Eigen/src/Core/products/GeneralBlockPanelKernel.h b/Eigen/src/Core/products/GeneralBlockPanelKernel.h
index ebf438d..cc4a9c4 100644
--- a/Eigen/src/Core/products/GeneralBlockPanelKernel.h
+++ b/Eigen/src/Core/products/GeneralBlockPanelKernel.h
@@ -1255,6 +1255,7 @@
       }
     }
     //---------- Process remaining rows, 1 at once ----------
+    if(peeled_mc1<rows)
     {
       // loop on each panel of the rhs
       for(Index j2=0; j2<packet_cols4; j2+=nr)
@@ -1288,13 +1289,11 @@
               straits.loadLhsUnaligned(blB+0*SwappedTraits::LhsProgress, A0);
               straits.loadLhsUnaligned(blB+1*SwappedTraits::LhsProgress, A1);
               
-              
               straits.loadRhsQuad(blA+0*spk, B_0);
               straits.loadRhsQuad(blA+1*spk, B_1);
               straits.madd(A0,B_0,C0,B_0);
               straits.madd(A1,B_1,C1,B_1);
               
-              
               straits.loadLhsUnaligned(blB+2*SwappedTraits::LhsProgress, A0);
               straits.loadLhsUnaligned(blB+3*SwappedTraits::LhsProgress, A1);
               straits.loadRhsQuad(blA+2*spk, B_0);