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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+//
+//  ExpTransform.cpp
+//  MNNConverter
+//
+//  Created by MNN on 2019/12/12.
+//  Copyright © 2018, Alibaba Group Holding Limited
+//
+
+#include <cmath>
+#include "CaffeExtraManager.hpp"
+#include "MNN_generated.h"
+
+namespace MNN {
+namespace Express {
+
+class ExpTransform : public CaffeExtraManager::Transform {
+public:
+    virtual EXPRP onExecute(EXPRP expr) const override {
+        auto op     = expr->get();
+        auto inputs = expr->inputs();
+        auto base   = op->main_as_Extra()->attr()->GetAs<Attribute>(0)->f();
+        auto scale  = op->main_as_Extra()->attr()->GetAs<Attribute>(1)->f();
+        auto shift  = op->main_as_Extra()->attr()->GetAs<Attribute>(2)->f();
+
+        auto exponent = _Add(_Multiply(inputs[0], _Const(scale)), _Const(shift));
+        if (fabs(base - (-1)) < 1e-6) {
+            base = exp(1);
+        }
+        auto newVar = _Pow(_Const(base), exponent);
+        return newVar->expr().first;
+    }
+};
+
+static auto gRegister = []() {
+    CaffeExtraManager::get()->insert("Exp", std::shared_ptr<CaffeExtraManager::Transform>(new ExpTransform));
+    return true;
+}();
+
+} // namespace Express
+} // namespace MNN