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 +1,75 @@
+/* ******************************************************************************
+ *
+ *
+ * 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 <helpers/ShapeUtils.h>
+#include <ops/declarable/helpers/transforms.h>
+#if NOT_EXCLUDED(OP_tile)
+namespace sd {
+namespace ops {
+namespace helpers {
+
+
+//////////////////////////////////////////////////////////////////////////
+template <typename T>
+static void tileBP_(NDArray& gradO /*input*/, NDArray& gradI /*output*/, const std::vector<sd::LongType> reps) {
+  T* gradIBuff = reinterpret_cast<T*>(gradI.buffer());
+  auto gradOBuff = reinterpret_cast<T const*>(gradO.buffer());
+  const sd::LongType gradILen = gradI.lengthOf();
+  const sd::LongType gradOLen = gradO.lengthOf();  // gradOLen >= gradILen
+
+  // initial zeroing of gradI content
+  sd::ops::safe_zero(gradIBuff, static_cast<size_t>(gradILen));
+
+  LongType gradOCoords[SD_MAX_RANK];
+  LongType gradICoords[SD_MAX_RANK];
+  LongType gradOOffset;
+  LongType gradIOffset;
+
+  sd::LongType gradORank = gradO.rankOf();
+  sd::LongType *gradOShape = shape::shapeOf(gradO.shapeInfo());
+  sd::LongType *gradOStride = shape::stride(gradO.shapeInfo());
+  sd::LongType gradIRank = gradI.rankOf();
+  sd::LongType *gradIShape = shape::shapeOf(gradI.shapeInfo());
+  sd::LongType *gradIStride = shape::stride(gradI.shapeInfo());
+  for (sd::LongType i = 0; i < gradOLen; ++i) {
+    INDEX2COORDS(i,gradORank, gradOShape, gradOCoords);
+    COORDS2INDEX(gradORank, gradOStride, gradOCoords, gradOOffset);
+    INDEX2COORDS(i, gradIRank, gradIShape, gradICoords);
+    COORDS2INDEX(gradIRank, gradIStride, gradICoords, gradIOffset);
+    gradI.p(gradIOffset, gradI.e<T>(gradIOffset) + gradOBuff[gradOOffset]);
+  }
+}
+
+void tileBP(LaunchContext* context, NDArray gradO /*input*/, NDArray& gradI /*output*/,
+            const std::vector<LongType> reps) {
+  BUILD_SINGLE_SELECTOR(gradI.dataType(), tileBP_, (gradO, gradI, reps), SD_FLOAT_TYPES);
+}
+
+BUILD_SINGLE_TEMPLATE( void tileBP_,
+                      (NDArray& gradO /*input*/, NDArray& gradI /*output*/, const std::vector<sd::LongType> reps),
+                      SD_FLOAT_TYPES);
+
+}  // namespace helpers
+}  // namespace ops
+}  // namespace sd
+#endif