chore: import upstream snapshot with attribution

libnd4j/include/ops/declarable/helpers/cpu/eye.cpp

@@ -0,0 +1,45 @@
+/* ******************************************************************************
+ *
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Apache License, Version 2.0 which is available at
+ * https://www.apache.org/licenses/LICENSE-2.0.
+ *
+ *  See the NOTICE file distributed with this work for additional
+ *  information regarding copyright ownership.
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ ******************************************************************************/
+
+//
+// @author Yurii Shyrma (iuriish@yahoo.com), created on 20.04.2018
+//
+
+#include <helpers/Loops.h>
+#include <ops/declarable/helpers/transforms.h>
+#if NOT_EXCLUDED(OP_eye)
+namespace sd {
+namespace ops {
+namespace helpers {
+
+//////////////////////////////////////////////////////////////////////////
+void eye(sd::LaunchContext* context, NDArray& output) {
+  const int rank = output.rankOf();
+  auto arrs = output.allTensorsAlongDimension({rank - 2, rank - 1});
+
+  auto func = PRAGMA_THREADS_FOR {
+    for (auto i = start; i < stop; i++) arrs.at(i)->setIdentity();
+  };
+
+  samediff::Threads::parallel_tad(func, 0, arrs.size());
+}
+
+}  // namespace helpers
+}  // namespace ops
+}  // namespace sd
+#endif