chore: import upstream snapshot with attribution

2026-07-13 12:47:05 +08:00
commit 4f3b7da785
7394 changed files with 2005594 additions and 0 deletions
@@ -0,0 +1,70 @@
+/* ******************************************************************************
+ *
+ *
+ * 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 raver119@gmail.com
+//
+
+#include <system/op_boilerplate.h>
+#if NOT_EXCLUDED(OP_)
+
+#include <ops/declarable/CustomOperations.h>
+#include <ops/declarable/helpers/flatten.h>
+
+namespace sd {
+namespace ops {
+CUSTOM_OP_IMPL(flatten, -1, 1, false, 0, 1) {
+  auto output = OUTPUT_VARIABLE(0);
+  auto zType = output->dataType();
+  auto xType = INPUT_VARIABLE(0)->dataType();
+  REQUIRE_TRUE(xType == zType, 0, "Flatten: output array must have same data type as input arrays");
+  std::vector<NDArray*> arrays(block.width());
+  for (size_t e = 0; e < block.width(); e++) {
+    auto input = INPUT_VARIABLE(e);
+
+    REQUIRE_TRUE(xType == input->dataType(), 0, "Flatten: all input arrays must have the same data type");
+
+    arrays[e] = input;
+  }
+
+  char order = (char)INT_ARG(0);
+  helpers::flatten(block.launchContext(), arrays, output, order);
+
+  return Status::OK;
+}
+
+DECLARE_TYPES(flatten) {
+  getOpDescriptor()->setAllowedInputTypes({ALL_INTS, ALL_FLOATS, BOOL});
+  getOpDescriptor()->setAllowedOutputTypes(0, {ALL_FLOATS, ALL_INTS, BOOL});
+}
+
+DECLARE_SHAPE_FN(flatten) {
+  LongType length = 0;
+  DataType dtype = ArrayOptions::dataType(inputShape->at(0));
+  for (size_t e = 0; e < block.width(); e++) {
+    length += shape::length(inputShape->at(e));
+    REQUIRE_TRUE(dtype == ArrayOptions::dataType(inputShape->at(e)), 0,
+                 "Flatten: all input arrays must have the same datatype");
+  }
+
+  return SHAPELIST(ConstantShapeHelper::getInstance().vectorShapeInfo(length, dtype));
+}
+}  // namespace ops
+}  // namespace sd
+
+#endif