From 165db26dc07d9219524e10b69aa937536172e21c Mon Sep 17 00:00:00 2001
From: Gael Guennebaud <g.gael@free.fr>
Date: Mon, 30 Sep 2019 16:14:34 +0200
Subject: [PATCH] Fix speed issue with SimplicialLDLT for complexes: the
 diagonal is real! (grafted from c8b2c603b0fe391d24ae0c95a1e20b157bfae33a )

---
 Eigen/src/SparseCholesky/SimplicialCholesky_impl.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Eigen/src/SparseCholesky/SimplicialCholesky_impl.h b/Eigen/src/SparseCholesky/SimplicialCholesky_impl.h
index 31e06995b..7b6183d08 100644
--- a/Eigen/src/SparseCholesky/SimplicialCholesky_impl.h
+++ b/Eigen/src/SparseCholesky/SimplicialCholesky_impl.h
@@ -156,7 +156,7 @@ void SimplicialCholeskyBase<Derived>::factorize_preordered(const CholMatrixType&
       /* the nonzero entry L(k,i) */
       Scalar l_ki;
       if(DoLDLT)
-        l_ki = yi / m_diag[i];
+        l_ki = yi / numext::real(m_diag[i]);
       else
         yi = l_ki = yi / Lx[Lp[i]];