From 3d0741f027d6ba143f94d24e798053636b8f93eb Mon Sep 17 00:00:00 2001
From: Benoit Steiner <benoit.steiner.goog@gmail.com>
Date: Mon, 23 May 2016 20:43:48 -0700
Subject: [PATCH] Include mmintrin.h to make it possible to use mmx
 instructions when needed. For example, this will enable the definition of a
 half packet for the Packet4f type.

---
 Eigen/Core | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Eigen/Core b/Eigen/Core
index 2c376ba3a..6c79bcfae 100644
--- a/Eigen/Core
+++ b/Eigen/Core
@@ -156,6 +156,7 @@
       #if EIGEN_COMP_ICC >= 1110
         #include <immintrin.h>
       #else
+        #include <mmintrin.h>
         #include <emmintrin.h>
         #include <xmmintrin.h>
         #ifdef  EIGEN_VECTORIZE_SSE3