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 +1,57 @@
+//
+//  RemoveDropout.cpp
+//  MNNConverter
+//
+//  Created by MNN on 2019/11/26.
+//  Copyright © 2018, Alibaba Group Holding Limited
+//
+
+#include <algorithm>
+#include <string>
+#include <vector>
+#include "../PostTreatUtils.hpp"
+#include "RemoveTestNoUseOps.hpp"
+
+using namespace MNN;
+
+class RemoveDropout : public RemoveTestNoUseOps {
+public:
+    /* The Op's output set as input */
+    bool shouldDeleteJudge(const MNN::OpT* op, const MNN::NetT* const netPtr) const override {
+        static auto unuseOpType      = std::vector<OpType>({OpType_Dropout});
+        static auto unuseExtraOpType = std::vector<std::string>({"Dropout"});
+        if (std::find(unuseOpType.begin(), unuseOpType.end(), op->type) != unuseOpType.end()) {
+            return true;
+        }
+        if (op->type == OpType_Extra) {
+            if (std::find(unuseExtraOpType.begin(), unuseExtraOpType.end(), op->main.AsExtra()->type) !=
+                unuseExtraOpType.end()) {
+                return true;
+            }
+            if (netPtr->sourceType == MNN::NetSource_CAFFE && op->main.AsExtra()->type == "Split") {
+                return true;
+            }
+        }
+        if (op->type == OpType_Cast) {
+            if (op->main.AsCastParam()->dstT == op->main.AsCastParam()->srcT) {
+                return true;
+            }
+            if (op->main.AsCastParam()->dstT == MNN::DataType_DT_INT32 &&
+                op->main.AsCastParam()->srcT == MNN::DataType_DT_INT64) {
+                return true;
+            }
+            if (op->main.AsCastParam()->srcT == MNN::DataType_DT_INT32 &&
+                op->main.AsCastParam()->dstT == MNN::DataType_DT_INT64) {
+                return true;
+            }
+        }
+        return false;
+    };
+    bool shouldRemoveUnusefulInputs(const MNN::OpT* op) const override {
+        return false;
+    };
+    bool shouldDeleteOutput(const MNN::OpT* op) const override {
+        return false;
+    };
+};
+static PostConverterRegister<RemoveDropout> __l("RemoveDropout");