diff --git a/eigen/Eigen/src/Core/MathFunctions.h b/eigen/Eigen/src/Core/MathFunctions.h
index 61b78f4..393f83b 100644
--- a/eigen/Eigen/src/Core/MathFunctions.h
+++ b/eigen/Eigen/src/Core/MathFunctions.h
@@ -1042,7 +1042,7 @@ EIGEN_DEVICE_FUNC inline bool isinf_impl(const float& x)       { return isinf_ms
 
 #elif (defined __FINITE_MATH_ONLY__ && __FINITE_MATH_ONLY__ && EIGEN_COMP_GNUC)
 
-#if EIGEN_GNUC_AT_LEAST(5,0)
+#if EIGEN_GNUC_AT_LEAST(5,0) && !(defined(__e2k__) && defined(__LCC__))
   #define EIGEN_TMP_NOOPT_ATTRIB EIGEN_DEVICE_FUNC inline __attribute__((optimize("no-finite-math-only")))
 #else
   // NOTE the inline qualifier and noinline attribute are both needed: the former is to avoid linking issue (duplicate symbol),
diff --git a/eigen/Eigen/src/Core/arch/Default/GenericPacketMathFunctions.h b/eigen/Eigen/src/Core/arch/Default/GenericPacketMathFunctions.h
index c9fbaf6..708b4be 100644
--- a/eigen/Eigen/src/Core/arch/Default/GenericPacketMathFunctions.h
+++ b/eigen/Eigen/src/Core/arch/Default/GenericPacketMathFunctions.h
@@ -619,7 +619,7 @@ inline float trig_reduce_huge (float xf, int *quadrant)
 template<bool ComputeSine,typename Packet>
 EIGEN_DEFINE_FUNCTION_ALLOWING_MULTIPLE_DEFINITIONS
 EIGEN_UNUSED
-#if EIGEN_GNUC_AT_LEAST(4,4) && EIGEN_COMP_GNUC_STRICT
+#if EIGEN_GNUC_AT_LEAST(4,4) && EIGEN_COMP_GNUC_STRICT && !defined(__e2k__)
 __attribute__((optimize("-fno-unsafe-math-optimizations")))
 #endif
 Packet psincos_float(const Packet& _x)
diff --git a/eigen/Eigen/src/Core/products/GeneralBlockPanelKernel.h b/eigen/Eigen/src/Core/products/GeneralBlockPanelKernel.h
index f35b760..aba984d 100644
--- a/eigen/Eigen/src/Core/products/GeneralBlockPanelKernel.h
+++ b/eigen/Eigen/src/Core/products/GeneralBlockPanelKernel.h
@@ -1201,7 +1201,7 @@ struct lhs_process_one_packet
     traits.madd(*A0, *rhs_panel, *C1, *T0, fix<1>);
     traits.madd(*A0, *rhs_panel, *C2, *T0, fix<2>);
     traits.madd(*A0, *rhs_panel, *C3, *T0, fix<3>);
-    #if EIGEN_GNUC_AT_LEAST(6,0) && defined(EIGEN_VECTORIZE_SSE)
+    #if EIGEN_GNUC_AT_LEAST(6,0) && defined(EIGEN_VECTORIZE_SSE) && !defined(__e2k__)
     __asm__  ("" : "+x,m" (*A0));
     #endif
     EIGEN_ASM_COMMENT("end step of gebp micro kernel 1X4");
@@ -1727,7 +1727,7 @@ 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) && defined(EIGEN_VECTORIZE_SSE)
+          #if EIGEN_GNUC_AT_LEAST(6,0) && defined(EIGEN_VECTORIZE_SSE) && !defined(__e2k__)
             #define EIGEN_GEBP_2PX4_SPILLING_WORKAROUND __asm__  ("" : [a0] "+x,m" (A0),[a1] "+x,m" (A1));
           #else
             #define EIGEN_GEBP_2PX4_SPILLING_WORKAROUND
diff --git a/eigen/Eigen/src/Core/util/ConfigureVectorization.h b/eigen/Eigen/src/Core/util/ConfigureVectorization.h
index af4e696..ee7566b 100644
--- a/eigen/Eigen/src/Core/util/ConfigureVectorization.h
+++ b/eigen/Eigen/src/Core/util/ConfigureVectorization.h
@@ -237,6 +237,8 @@
     #ifdef __SSE4_1__
       #define EIGEN_VECTORIZE_SSE4_1
     #endif
+  // e2k has SSE up to 4.1, effectively (SSE4.2/AVX1 might be faster or not)
+  #ifndef __e2k__
     #ifdef __SSE4_2__
       #define EIGEN_VECTORIZE_SSE4_2
     #endif
@@ -294,6 +296,7 @@
         #endif
       #endif
     #endif
+  #endif // __e2k__
 
     // Disable AVX support on broken xcode versions
     #if defined(__apple_build_version__) && (__apple_build_version__ == 11000033 ) && ( __MAC_OS_X_VERSION_MIN_REQUIRED == 101500 )
diff --git a/eigen/Eigen/src/SparseCore/SparseDenseProduct.h b/eigen/Eigen/src/SparseCore/SparseDenseProduct.h
index f005a18..584e795 100644
--- a/eigen/Eigen/src/SparseCore/SparseDenseProduct.h
+++ b/eigen/Eigen/src/SparseCore/SparseDenseProduct.h
@@ -48,7 +48,8 @@ struct sparse_time_dense_product_impl<SparseLhsType,DenseRhsType,DenseResType, t
       // It basically represents the minimal amount of work to be done to be worth it.
       if(threads>1 && lhsEval.nonZerosEstimate() > 20000)
       {
-        #pragma omp parallel for schedule(dynamic,(n+threads*4-1)/(threads*4)) num_threads(threads)
+        int sched = (n+threads*4-1)/(threads*4);
+        #pragma omp parallel for schedule(dynamic,sched) num_threads(threads)
         for(Index i=0; i<n; ++i)
           processRow(lhsEval,rhs,res,alpha,i,c);
       }
@@ -126,7 +127,8 @@ struct sparse_time_dense_product_impl<SparseLhsType,DenseRhsType,DenseResType, t
     // It basically represents the minimal amount of work to be done to be worth it.
     if(threads>1 && lhsEval.nonZerosEstimate()*rhs.cols() > 20000)
     {
-      #pragma omp parallel for schedule(dynamic,(n+threads*4-1)/(threads*4)) num_threads(threads)
+      int sched = (n+threads*4-1)/(threads*4);
+      #pragma omp parallel for schedule(dynamic,sched) num_threads(threads)
       for(Index i=0; i<n; ++i)
         processRow(lhsEval,rhs,res,alpha,i);
     }