From 3a5d6a3c3866ee7572ad7c6356d9da65fc30b4de Mon Sep 17 00:00:00 2001
From: Benoit Steiner <benoit.steiner.goog@gmail.com>
Date: Fri, 27 May 2016 09:13:26 -0700
Subject: [PATCH] Disable the use of MMX instructions since the code is broken
 on many platforms

---
 Eigen/src/Core/arch/CUDA/PacketMathHalf.h | 4 +++-
 Eigen/src/Core/arch/CUDA/TypeCasting.h    | 4 +++-
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/Eigen/src/Core/arch/CUDA/PacketMathHalf.h b/Eigen/src/Core/arch/CUDA/PacketMathHalf.h
index 267c8d5e3..4f052dcf2 100644
--- a/Eigen/src/Core/arch/CUDA/PacketMathHalf.h
+++ b/Eigen/src/Core/arch/CUDA/PacketMathHalf.h
@@ -529,7 +529,9 @@ ptranspose(PacketBlock<Packet8h,4>& kernel) {
 }
 
 
-#elif defined(EIGEN_VECTORIZE_SSE) && (!EIGEN_ARCH_x86_64) && (!EIGEN_COMP_MSVC)
+// Disable the following code since it's broken on too many platforms / compilers.
+//#elif defined(EIGEN_VECTORIZE_SSE) && (!EIGEN_ARCH_x86_64) && (!EIGEN_COMP_MSVC)
+#elif 0
 
 typedef struct {
   __m64 x;
diff --git a/Eigen/src/Core/arch/CUDA/TypeCasting.h b/Eigen/src/Core/arch/CUDA/TypeCasting.h
index 2944f1b14..31f1c523a 100644
--- a/Eigen/src/Core/arch/CUDA/TypeCasting.h
+++ b/Eigen/src/Core/arch/CUDA/TypeCasting.h
@@ -128,7 +128,9 @@ template<> EIGEN_STRONG_INLINE Packet8h pcast<Packet8f, Packet8h>(const Packet8f
   return float2half(a);
 }
 
-#elif defined(EIGEN_VECTORIZE_SSE) && (!EIGEN_ARCH_x86_64) && (!EIGEN_COMP_MSVC)
+// Disable the following code since it's broken on too many platforms / compilers.
+//#elif defined(EIGEN_VECTORIZE_SSE) && (!EIGEN_ARCH_x86_64) && (!EIGEN_COMP_MSVC)
+#elif 0
 
 template <>
 struct type_casting_traits<Eigen::half, float> {