1 files changed, 66 insertions, 0 deletions
diff --git a/compiler/mir-interpreter/src/ops/Max.cpp b/compiler/mir-interpreter/src/ops/Max.cpp
new file mode 100644
index 000000000..eb284c77c
--- /dev/null
+++ b/compiler/mir-interpreter/src/ops/Max.cpp
@@ -0,0 +1,66 @@
+/*
+ * Copyright (c) 2020 Samsung Electronics Co., Ltd. All Rights Reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "Max.h"
+#include "Common.h"
+
+#include "mir/ShapeRange.h"
+#include "mir/Tensor.h"
+
+#include <algorithm>
+
+namespace mir_interpreter
+{
+
+using namespace mir;
+
+template <typename T> struct MaxImpl
+{
+  static void run(const TensorVariant &lhs, const TensorVariant &rhs, TensorVariant &res);
+};
+
+template <typename T>
+void MaxImpl<T>::run(const TensorVariant &lhs, const TensorVariant &rhs, TensorVariant &res)
+{
+  TensorVariant broadcasted_lhs(lhs, res.getShape());
+  TensorVariant broadcasted_rhs(rhs, res.getShape());
+  Tensor<T> lhs_accessor(broadcasted_lhs);
+  Tensor<T> rhs_accessor(broadcasted_rhs);
+  Tensor<T> res_accessor(res);
+
+  for (const auto &index : ShapeRange(res.getShape()))
+  {
+    res_accessor.at(index) = std::max(lhs_accessor.at(index), rhs_accessor.at(index));
+  }
+}
+template <> struct MaxImpl<uint8_t>
+{
+  static void run(const TensorVariant &lhs, const TensorVariant &rhs, TensorVariant &res)
+  {
+    throw std::runtime_error{"NYI"};
+  };
+};
+
+void Max(const TensorVariant &lhs, const TensorVariant &rhs, TensorVariant &res)
+{
+  if (lhs.getElementType() != rhs.getElementType())
+  {
+    throw std::runtime_error{"Max with different input types is unsupported"};
+  }
+  dispatch<MaxImpl>(lhs.getElementType(), lhs, rhs, res);
+}
+
+} // namespace mir_interpreter