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
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+//
+//  ShapePermute.cpp
+//  MNN
+//
+//  Created by MNN on 2019/01/10.
+//  Copyright © 2018, Alibaba Group Holding Limited
+//
+
+#include "shape/SizeComputer.hpp"
+#include "core/Macro.h"
+
+namespace MNN {
+class PermuteComputer : public SizeComputer {
+public:
+    virtual bool onComputeSize(const MNN::Op* op, const std::vector<Tensor*>& inputs,
+                               const std::vector<Tensor*>& outputs) const override {
+        MNN_ASSERT(1 == inputs.size());
+        MNN_ASSERT(1 == outputs.size());
+
+        auto input  = inputs[0];
+        auto output = outputs[0];
+        int dimSize = input->dimensions();
+        output->buffer().dimensions = dimSize;
+
+        if (nullptr != op->main_as_Permute()->dims()) {
+            auto shape  = op->main_as_Permute()->dims();
+            MNN_ASSERT(shape->size() == input->buffer().dimensions);
+            for (int i = 0; i < dimSize; ++i) {
+                output->buffer().dim[i].extent = input->buffer().dim[shape->data()[i]].extent;
+            }
+        } else {
+            for (int i = 0; i < dimSize; ++i) {
+                output->buffer().dim[i].extent = input->buffer().dim[dimSize-i-1].extent;
+            }
+        }
+        TensorUtils::getDescribe(outputs[0])->dimensionFormat = TensorUtils::getDescribe(inputs[0])->dimensionFormat;
+        output->buffer().type = input->buffer().type;
+
+        return true;
+    }
+};
+
+REGISTER_SHAPE(PermuteComputer, OpType_Permute);
+} // namespace MNN