--- Eigen/src/Core/products/GeneralMatrixMatrixTriangular_BLAS.h.orig	2018-05-08 14:00:08.000000000 -0500
+++ Eigen/src/Core/products/GeneralMatrixMatrixTriangular_BLAS.h	2018-05-08 14:00:21.000000000 -0500
@@ -52,7 +52,7 @@
   static EIGEN_STRONG_INLINE void run(Index size, Index depth,const Scalar* lhs, Index lhsStride, \
                           const Scalar* rhs, Index rhsStride, Scalar* res, Index resStride, Scalar alpha, level3_blocking<Scalar, Scalar>& blocking) \
   { \
-    if ( lhs==rhs && ((UpLo&(Lower|Upper)==UpLo)) ) { \
+    if ( lhs==rhs && ((UpLo&(Lower|Upper))==UpLo) ) { \
       general_matrix_matrix_rankupdate<Index,Scalar,LhsStorageOrder,ConjugateLhs,ColMajor,UpLo> \
       ::run(size,depth,lhs,lhsStride,rhs,rhsStride,res,resStride,alpha,blocking); \
     } else { \