diff --git a/Eigen/src/Core/products/GeneralBlockPanelKernel.h b/Eigen/src/Core/products/GeneralBlockPanelKernel.h
index 6be1b49c6..72dbb2f8a 100644
--- a/Eigen/src/Core/products/GeneralBlockPanelKernel.h
+++ b/Eigen/src/Core/products/GeneralBlockPanelKernel.h
@@ -1199,7 +1199,7 @@ void gebp_kernel<LhsScalar,RhsScalar,Index,DataMapper,mr,nr,ConjugateLhs,Conjuga
 
           // NOTE: the begin/end asm comments below work around bug 935!
           // but they are not enough for gcc>=6 without FMA (bug 1637)
-          #if EIGEN_GNUC_AT_LEAST(6,0)
+          #if EIGEN_GNUC_AT_LEAST(6,0) && defined(EIGEN_VECTORIZE_SSE)
             #define EIGEN_GEBP_2PX4_SPILLING_WORKAROUND __asm__  ("" : [a0] "+rm" (A0),[a1] "+rm" (A1));
           #else
             #define EIGEN_GEBP_2PX4_SPILLING_WORKAROUND