chore: import upstream snapshot with attribution

2026-07-13 13:33:03 +08:00
commit 5b57521aa1
8226 changed files with 3425766 additions and 0 deletions
@@ -0,0 +1,68 @@
+//
+//  TensorUtilsTest.cpp
+//  MNNTests
+//
+//  Created by MNN on 2019/01/16.
+//  Copyright © 2018, Alibaba Group Holding Limited
+//
+
+#include "MNNTestSuite.h"
+#include "core/TensorUtils.hpp"
+
+using namespace MNN;
+
+class TensorUtilsTest : public MNNTestCase {
+public:
+    virtual ~TensorUtilsTest() = default;
+    virtual bool run(int precision) {
+        // copy
+        {
+            Tensor src(3, Tensor::TENSORFLOW);
+            src.setLength(0, 1);
+            src.setLength(1, 2);
+            src.setLength(2, 3);
+            src.setStride(0, 4);
+            src.setStride(1, 5);
+            src.setStride(2, 6);
+
+            Tensor dst1(4, Tensor::CAFFE);
+            TensorUtils::copyShape(&src, &dst1);
+            MNNTEST_ASSERT(dst1.dimensions() == 3);
+            MNNTEST_ASSERT(dst1.length(0) == 1);
+            MNNTEST_ASSERT(dst1.length(1) == 2);
+            MNNTEST_ASSERT(dst1.length(2) == 3);
+            MNNTEST_ASSERT(dst1.stride(0) == 4);
+            MNNTEST_ASSERT(dst1.stride(1) == 5);
+            MNNTEST_ASSERT(dst1.stride(2) == 6);
+            MNNTEST_ASSERT(dst1.getDimensionType() == Tensor::CAFFE);
+
+            Tensor dst2(4, Tensor::CAFFE);
+            TensorUtils::copyShape(&src, &dst2, true);
+            MNNTEST_ASSERT(dst2.dimensions() == 3);
+            MNNTEST_ASSERT(dst2.length(0) == 1);
+            MNNTEST_ASSERT(dst2.length(1) == 2);
+            MNNTEST_ASSERT(dst2.length(2) == 3);
+            MNNTEST_ASSERT(dst2.stride(0) == 4);
+            MNNTEST_ASSERT(dst2.stride(1) == 5);
+            MNNTEST_ASSERT(dst2.stride(2) == 6);
+            MNNTEST_ASSERT(dst2.getDimensionType() == Tensor::TENSORFLOW);
+        }
+
+        // layout
+        {
+            Tensor tensor(3, Tensor::TENSORFLOW);
+            tensor.setLength(0, 1);
+            tensor.setLength(1, 2);
+            tensor.setLength(2, 3);
+            tensor.setStride(0, 4);
+            tensor.setStride(1, 5);
+            tensor.setStride(2, 6);
+            TensorUtils::setLinearLayout(&tensor);
+            MNNTEST_ASSERT(tensor.stride(0) == 2 * 3);
+            MNNTEST_ASSERT(tensor.stride(1) == 3);
+            MNNTEST_ASSERT(tensor.stride(2) == 1);
+        }
+        return true;
+    }
+};
+MNNTestSuiteRegister(TensorUtilsTest, "core/tensor_utils");