1 files changed, 137 insertions, 0 deletions
diff --git a/compiler/moco/lang/src/IR/TFNode.cpp b/compiler/moco/lang/src/IR/TFNode.cpp
new file mode 100644
index 000000000..ab9356196
--- /dev/null
+++ b/compiler/moco/lang/src/IR/TFNode.cpp
@@ -0,0 +1,137 @@
+/*
+ * Copyright (c) 2019 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 "moco/IR/TFNode.h"
+#include "moco/IR/TFDialect.h"
+
+#include <cassert>
+
+namespace moco
+{
+
+const loco::Dialect *TFNode::dialect(void) const { return TFDialect::get(); }
+
+} // namespace moco
+
+// TODO move this to appropriate place
+#include <stdex/Memory.h>
+
+namespace moco
+{
+
+struct GraphInputIndexAnnotation : public loco::NodeAnnotation
+{
+public:
+  GraphInputIndexAnnotation(const loco::GraphInputIndex &index) : _index{index}
+  {
+    // DO NOTHING
+  }
+
+public:
+  const loco::GraphInputIndex &index(void) const { return _index; }
+
+private:
+  loco::GraphInputIndex _index;
+};
+
+bool indexed(const TFPlaceholder *node)
+{
+  return (node->annot<GraphInputIndexAnnotation>() != nullptr);
+}
+
+loco::GraphInputIndex index(const TFPlaceholder *node)
+{
+  assert(indexed(node));
+  return node->annot<GraphInputIndexAnnotation>()->index();
+}
+
+void index(TFPlaceholder *node, const loco::GraphInputIndex index)
+{
+  node->annot(stdex::make_unique<GraphInputIndexAnnotation>(index));
+}
+
+loco::TensorShape tensor_shape(const TFPlaceholder *node)
+{
+  assert(node != nullptr);
+
+  loco::TensorShape shape;
+
+  uint32_t rank = node->rank();
+  shape.rank(rank);
+  for (uint32_t index = 0; index < rank; ++index)
+  {
+    if (node->dim(index).known())
+      shape.dim(index) = node->dim(index).value();
+    else
+      shape.dim(index).unset();
+  }
+
+  return shape;
+}
+
+TFPlaceholder *placeholder_node(loco::Graph *g, const loco::GraphInputIndex &idx)
+{
+  for (uint32_t n = 0; n < g->nodes()->size(); ++n)
+  {
+    if (auto tfplaceholder = dynamic_cast<TFPlaceholder *>(g->nodes()->at(n)))
+    {
+      if (indexed(tfplaceholder) && index(tfplaceholder) == idx)
+      {
+        return tfplaceholder;
+      }
+    }
+  }
+  return nullptr;
+}
+
+} // namespace moco
+
+namespace moco
+{
+
+/**
+ * TFPush
+ */
+
+void TFPush::index(const loco::GraphOutputIndex &index)
+{
+  // Push internally stores "GraphOutputIndex" as int64_t
+  _index = static_cast<int64_t>(index);
+}
+
+loco::GraphOutputIndex TFPush::index(void) const
+{
+  assert(_index >= std::numeric_limits<loco::GraphOutputIndex>::min());
+  assert(_index <= std::numeric_limits<loco::GraphOutputIndex>::max());
+  return static_cast<loco::GraphOutputIndex>(_index);
+}
+
+TFPush *push_node(loco::Graph *g, const loco::GraphOutputIndex &index)
+{
+  for (uint32_t n = 0; n < g->nodes()->size(); ++n)
+  {
+    if (auto tfpush = dynamic_cast<TFPush *>(g->nodes()->at(n)))
+    {
+      if (tfpush->indexed() && tfpush->index() == index)
+      {
+        return tfpush;
+      }
+    }
+  }
+  return nullptr;
+}
+
+} // namespace moco