Prevent TensorFlow from crashing when attempting to reduce an empty tensor on GPU

Change: 120505517

eigen.BUILD

 package(default_visibility = ["//visibility:public"])
 
-archive_dir = "eigen-eigen-0823d98fdde7"
+archive_dir = "eigen-eigen-ffa59a39ffb9"
 
 cc_library(
     name = "eigen",

tensorflow/contrib/cmake/external/eigen.cmake

@@ -7,7 +7,7 @@
 
 include (ExternalProject)
 
-set(eigen_archive_hash "0823d98fdde7")
+set(eigen_archive_hash "ffa59a39ffb9")
 
 set(eigen_INCLUDE_DIRS
     ${CMAKE_CURRENT_BINARY_DIR}
@@ -16,7 +16,7 @@ set(eigen_INCLUDE_DIRS
     ${tensorflow_source_dir}/third_party/eigen3
 )
 set(eigen_URL https://bitbucket.org/eigen/eigen/get/${eigen_archive_hash}.tar.gz)
-set(eigen_HASH SHA256=bbb8504e2fbb02937bb4efba4631f2344cd898a4fcee2cf4e7f22542de9aeb52)
+set(eigen_HASH SHA256=ccca47fe6528a97bcec26c733908114bbfb701c5d818d095820da94b158ef8e1)
 set(eigen_BUILD ${CMAKE_CURRENT_BINARY_DIR}/eigen/src/eigen)
 set(eigen_INSTALL ${CMAKE_CURRENT_BINARY_DIR}/eigen/install)
 

tensorflow/workspace.bzl

@@ -13,8 +13,8 @@ def tf_workspace(path_prefix = "", tf_repo_name = ""):
 
   native.new_http_archive(
     name = "eigen_archive",
-    url = "https://bitbucket.org/eigen/eigen/get/0823d98fdde7.tar.gz",
-    sha256 = "bbb8504e2fbb02937bb4efba4631f2344cd898a4fcee2cf4e7f22542de9aeb52",
+    url = "https://bitbucket.org/eigen/eigen/get/ffa59a39ffb9.tar.gz",
+    sha256 = "ccca47fe6528a97bcec26c733908114bbfb701c5d818d095820da94b158ef8e1",
     build_file = path_prefix + "eigen.BUILD",
   )
 

third_party/eigen3/Eigen/Cholesky

-#include "eigen-eigen-0823d98fdde7/Eigen/Cholesky"
+#include "eigen-eigen-ffa59a39ffb9/Eigen/Cholesky"

third_party/eigen3/Eigen/Core

-#include "eigen-eigen-0823d98fdde7/Eigen/Core"
+#include "eigen-eigen-ffa59a39ffb9/Eigen/Core"

third_party/eigen3/Eigen/Eigenvalues

-#include "eigen-eigen-0823d98fdde7/Eigen/Eigenvalues"
+#include "eigen-eigen-ffa59a39ffb9/Eigen/Eigenvalues"

third_party/eigen3/Eigen/LU

-#include "eigen-eigen-0823d98fdde7/Eigen/LU"
+#include "eigen-eigen-ffa59a39ffb9/Eigen/LU"

third_party/eigen3/Eigen/QR

-#include "eigen-eigen-0823d98fdde7/Eigen/QR"
+#include "eigen-eigen-ffa59a39ffb9/Eigen/QR"

third_party/eigen3/unsupported/Eigen/CXX11/Tensor

-#include "eigen-eigen-0823d98fdde7/unsupported/Eigen/CXX11/Tensor"
+#include "eigen-eigen-ffa59a39ffb9/unsupported/Eigen/CXX11/Tensor"