chore: import upstream snapshot with attribution

2026-07-13 13:36:25 +08:00
commit 26446540fa
3151 changed files with 974126 additions and 0 deletions
@@ -0,0 +1,73 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * 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.
+ */
+
+#include <gtest/gtest.h>
+#include <tvm/runtime/logging.h>
+#include <tvm/runtime/tensor.h>
+
+using namespace tvm;
+
+TEST(TensorTest, IsContiguous_ContiguousStride) {
+  auto array = runtime::Tensor::Empty({5, 10}, DLDataType{kDLFloat, 32, 1}, {kDLCPU});
+  DLManagedTensor* managed_tensor = array.ToDLPack();
+
+  int64_t strides[] = {10, 1};
+  managed_tensor->dl_tensor.strides = strides;
+
+  TVM_FFI_ICHECK(ffi::IsContiguous(managed_tensor->dl_tensor));
+
+  managed_tensor->deleter(managed_tensor);
+}
+
+TEST(TensorTest, IsContiguous_NullStride) {
+  auto array = runtime::Tensor::Empty({5, 10}, DLDataType{kDLFloat, 32, 1}, {kDLCPU});
+  DLManagedTensor* managed_tensor = array.ToDLPack();
+
+  managed_tensor->dl_tensor.strides = nullptr;
+
+  TVM_FFI_ICHECK(ffi::IsContiguous(managed_tensor->dl_tensor));
+
+  managed_tensor->deleter(managed_tensor);
+}
+
+TEST(TensorTest, IsContiguous_AnyStrideForSingular) {
+  auto array = runtime::Tensor::Empty({5, 1, 10}, DLDataType{kDLFloat, 32, 1}, {kDLCPU});
+  DLManagedTensor* managed_tensor = array.ToDLPack();
+
+  int64_t strides[] = {10, 1, 1};  // strides[1] is normalized to 1 because shape[1] == 1.
+  managed_tensor->dl_tensor.strides = strides;
+
+  TVM_FFI_ICHECK(ffi::IsContiguous(managed_tensor->dl_tensor));
+
+  managed_tensor->dl_tensor.strides = nullptr;
+  managed_tensor->deleter(managed_tensor);
+}
+
+TEST(TensorTest, IsContiguous_UncontiguousStride) {
+  auto array = runtime::Tensor::Empty({5, 1, 10}, DLDataType{kDLFloat, 32, 1}, {kDLCPU});
+  DLManagedTensor* managed_tensor = array.ToDLPack();
+
+  int64_t strides[] = {1, 1, 1};
+  managed_tensor->dl_tensor.strides = strides;
+
+  TVM_FFI_ICHECK(!ffi::IsContiguous(managed_tensor->dl_tensor));
+
+  managed_tensor->dl_tensor.strides = nullptr;
+  managed_tensor->deleter(managed_tensor);
+}