From 37a5b16eb44e547d5122090ae1388e3ae60a2170 Mon Sep 17 00:00:00 2001
From: Ilya Biryukov <ibiryukov@google.com>
Date: Thu, 22 Feb 2018 03:11:14 -0800
Subject: [PATCH] Fix compile errors by patching eigen locally.

PiperOrigin-RevId: 186592198
---
 tensorflow/workspace.bzl                     |  1 +
 third_party/eigen_fix_cuda_compilation.patch | 38 ++++++++++++++++++++++++++++
 2 files changed, 39 insertions(+)
 create mode 100644 third_party/eigen_fix_cuda_compilation.patch

diff --git a/tensorflow/workspace.bzl b/tensorflow/workspace.bzl
index 0ca19b7..6eee41b 100644
--- a/tensorflow/workspace.bzl
+++ b/tensorflow/workspace.bzl
@@ -126,6 +126,7 @@ def tf_workspace(path_prefix="", tf_repo_name=""):
       sha256 = "0cadb31a35b514bf2dfd6b5d38205da94ef326ec6908fc3fd7c269948467214f",
       strip_prefix = "eigen-eigen-2355b229ea4c",
       build_file = str(Label("//third_party:eigen.BUILD")),
+      patch_file = str(Label("//third_party:eigen_fix_cuda_compilation.patch"))
   )
 
   tf_http_archive(
diff --git a/third_party/eigen_fix_cuda_compilation.patch b/third_party/eigen_fix_cuda_compilation.patch
new file mode 100644
index 0000000..b921a7c
--- /dev/null
+++ b/third_party/eigen_fix_cuda_compilation.patch
@@ -0,0 +1,38 @@
+diff --git a/Eigen/src/Core/ProductEvaluators.h b/Eigen/src/Core/ProductEvaluators.h
+--- a/Eigen/src/Core/ProductEvaluators.h
++++ b/Eigen/src/Core/ProductEvaluators.h
+@@ -137,7 +137,7 @@ struct Assignment<DstXprType, Product<Lh
+   typename enable_if<(Options==DefaultProduct || Options==AliasFreeProduct)>::type>
+ {
+   typedef Product<Lhs,Rhs,Options> SrcXprType;
+-  static EIGEN_STRONG_INLINE
++  static EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE
+   void run(DstXprType &dst, const SrcXprType &src, const internal::assign_op<Scalar,Scalar> &)
+   {
+     Index dstRows = src.rows();
+@@ -390,7 +390,7 @@ struct generic_product_impl<Lhs,Rhs,Dens
+   typedef typename Product<Lhs,Rhs>::Scalar Scalar;
+   
+   template<typename Dst>
+-  static EIGEN_STRONG_INLINE void evalTo(Dst& dst, const Lhs& lhs, const Rhs& rhs)
++  static EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE void evalTo(Dst& dst, const Lhs& lhs, const Rhs& rhs)
+   {
+     // Same as: dst.noalias() = lhs.lazyProduct(rhs);
+     // but easier on the compiler side
+@@ -398,14 +398,14 @@ struct generic_product_impl<Lhs,Rhs,Dens
+   }
+   
+   template<typename Dst>
+-  static EIGEN_STRONG_INLINE void addTo(Dst& dst, const Lhs& lhs, const Rhs& rhs)
++  static EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE void addTo(Dst& dst, const Lhs& lhs, const Rhs& rhs)
+   {
+     // dst.noalias() += lhs.lazyProduct(rhs);
+     call_assignment_no_alias(dst, lhs.lazyProduct(rhs), internal::add_assign_op<typename Dst::Scalar,Scalar>());
+   }
+   
+   template<typename Dst>
+-  static EIGEN_STRONG_INLINE void subTo(Dst& dst, const Lhs& lhs, const Rhs& rhs)
++  static EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE void subTo(Dst& dst, const Lhs& lhs, const Rhs& rhs)
+   {
+     // dst.noalias() -= lhs.lazyProduct(rhs);
+     call_assignment_no_alias(dst, lhs.lazyProduct(rhs), internal::sub_assign_op<typename Dst::Scalar,Scalar>());
-- 
2.7.4