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
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+/* ******************************************************************************
+ *
+ *
+ * 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 06.12.2017.
+//
+
+#include <system/op_boilerplate.h>
+#if NOT_EXCLUDED(OP_diag_part)
+
+#include <ops/declarable/CustomOperations.h>
+#include <ops/declarable/helpers/diag.h>
+
+namespace sd {
+namespace ops {
+
+CUSTOM_OP_IMPL(diag_part, 1, 1, false, 0, 0) {
+  auto input = INPUT_VARIABLE(0);
+  auto output = OUTPUT_VARIABLE(0);
+
+  const int inRank = input->rankOf();
+
+  // input validation
+  REQUIRE_TRUE(
+      inRank == 2 || inRank == 4 || inRank == 6, 0,
+      "DIAG_PART op: input array must have rank among following three possible values: 2, 4, 6, but got %i instead !",
+      inRank);
+  for (int i = 0; i < inRank - 1; ++i)
+    REQUIRE_TRUE(input->sizeAt(i) == input->sizeAt(i + 1), 0,
+                 "DIAG_PART op: wrong shape of input array %s ! All dimensions must be equal !",
+                 ShapeUtils::shapeAsString(input).c_str());
+
+  helpers::diagPartFunctor(block.launchContext(), input, output);
+
+  return Status::OK;
+}
+DECLARE_SYN(DiagPart, diag_part);
+
+DECLARE_TYPES(diag_part) { getOpDescriptor()->setAllowedInputTypes(ANY)->setSameMode(true); }
+
+DECLARE_SHAPE_FN(diag_part) {
+  auto inputShapeInfo = inputShape->at(0);
+
+  const int inRank = inputShapeInfo[0];
+
+  // input validation
+  REQUIRE_TRUE(
+      inRank == 2 || inRank == 4 || inRank == 6, 0,
+      "DIAG_PART op: input array must have rank among following three possible values: 2, 4, 6, but got %i instead !",
+      inRank);
+  for (int i = 1; i < inRank; ++i)
+    REQUIRE_TRUE(inputShapeInfo[i] == inputShapeInfo[i + 1], 0,
+                 "DIAG_PART op: wrong shape of input array %s ! All dimensions must be equal !",
+                 ShapeUtils::shapeAsString(inputShapeInfo).c_str());
+
+  LongType* outShapeInfo = nullptr;
+
+  int outRank = inRank / 2;
+
+  ALLOCATE(outShapeInfo, block.getWorkspace(), shape::shapeInfoLength(outRank), sd::LongType);
+
+  outShapeInfo[0] = outRank;
+  for (int i = 1; i <= outRank; ++i) outShapeInfo[i] = inputShapeInfo[i];
+
+  ShapeUtils::updateStridesAndType(outShapeInfo, inputShapeInfo, shape::order(inputShapeInfo));
+
+  return SHAPELIST(ConstantShapeHelper::getInstance().createFromExisting(outShapeInfo));
+}
+
+}  // namespace ops
+}  // namespace sd
+
+#endif