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 +1,43 @@
+//
+//  ShapeCast.cpp
+//  MNN
+//
+//  Created by MNN on 2019/01/10.
+//  Copyright © 2018, Alibaba Group Holding Limited
+//
+
+#include "shape/SizeComputer.hpp"
+
+namespace MNN {
+
+class CastSizeComputer : public SizeComputer {
+public:
+    virtual bool onComputeSize(const MNN::Op* op, const std::vector<Tensor*>& inputs,
+                               const std::vector<Tensor*>& outputs) const override {
+        auto output = outputs[0];
+        auto input  = inputs[0];
+        TensorUtils::copyShape(input, output, true);
+        if (OpType_CastLike == op->type()) {
+            output->buffer().type = inputs[1]->buffer().type;
+            return true;
+        }
+        if (OpType_FloatToInt8 == op->type()) {
+            output->buffer().type = halide_type_of<int8_t>();
+            return true;
+        }
+        if (OpType_Int8ToFloat == op->type()) {
+            output->buffer().type = halide_type_of<float>();
+            return true;
+        }
+
+        const auto opParam = op->main_as_CastParam();
+        outputs[0]->setType(opParam->dstT());
+
+        return true;
+    }
+};
+REGISTER_SHAPE(CastSizeComputer, OpType_Cast);
+REGISTER_SHAPE(CastSizeComputer, OpType_CastLike);
+REGISTER_SHAPE(CastSizeComputer, OpType_FloatToInt8);
+REGISTER_SHAPE(CastSizeComputer, OpType_Int8ToFloat);
+} // namespace MNN