diff --git a/Eigen/src/Core/products/GeneralMatrixMatrix.h b/Eigen/src/Core/products/GeneralMatrixMatrix.h
index 9dedb7f14..7262e0635 100644
--- a/Eigen/src/Core/products/GeneralMatrixMatrix.h
+++ b/Eigen/src/Core/products/GeneralMatrixMatrix.h
@@ -425,16 +425,11 @@ static void ei_cache_friendly_product(
             for(int i=0; i<l2BlockRows; i+=2*PacketSize)
             {
               PacketType R0, R1, L0, L1, T0, T1;
-              asm("#begin sgemm");
-//               asm(".byte 0x66;");
 
               // We perform "cross products" of vectors to avoid
               // reductions (horizontal ops) afterwards
               T0 = ei_pload(&res[(j+l2j)*resStride+l2i+i]);
               T1 = ei_pload(&res[(j+l2j)*resStride+l2i+i+PacketSize]);
-              // uncomment to remove res cache miss
-//               T0 = ei_pload(&res[k]);
-//               T1 = ei_pload(&res[k+PacketSize]);
 
               R0 = ei_pload(&lb[0*PacketSize]);
               L0 = ei_pload(&lb[1*PacketSize]);
@@ -478,10 +473,6 @@ static void ei_cache_friendly_product(
 
               ei_pstore(&res[(j+l2j)*resStride+l2i+i], T0);
               ei_pstore(&res[(j+l2j)*resStride+l2i+i+PacketSize], T1);
-              // uncomment to remove res cache miss
-//               ei_pstore(&res[0], T0);
-//               ei_pstore(&res[4/*k+PacketSize*/], T1);
-              asm("#end sgemm");
             }
           }
         }
diff --git a/Eigen/src/Core/products/GeneralMatrixVector.h b/Eigen/src/Core/products/GeneralMatrixVector.h
index 2df6a652d..d78830dd3 100644
--- a/Eigen/src/Core/products/GeneralMatrixVector.h
+++ b/Eigen/src/Core/products/GeneralMatrixVector.h
@@ -38,7 +38,7 @@ static EIGEN_DONT_INLINE void ei_cache_friendly_product_colmajor_times_vector(
   const Scalar* lhs, int lhsStride,
   const RhsType& rhs,
   Scalar* res)
-{asm("#ei_cache_friendly_product_colmajor_times_vector");
+{
   #ifdef _EIGEN_ACCUMULATE_PACKETS
   #error _EIGEN_ACCUMULATE_PACKETS has already been defined
   #endif
diff --git a/Eigen/src/Core/util/Macros.h b/Eigen/src/Core/util/Macros.h
index de4dd06b9..69fa1db18 100644
--- a/Eigen/src/Core/util/Macros.h
+++ b/Eigen/src/Core/util/Macros.h
@@ -159,6 +159,12 @@ using Eigen::ei_cos;
 #define EIGEN_DEPRECATED
 #endif
 
+#if (defined __GNUC__)
+#define EIGEN_ASM_COMMENT(X)  asm("#"X)
+#else
+#define EIGEN_ASM_COMMENT(X)
+#endif
+
 /* EIGEN_ALIGN_128 forces data to be 16-byte aligned, EVEN if vectorization (EIGEN_VECTORIZE) is disabled,
  * so that vectorization doesn't affect binary compatibility.
  *