1 files changed, 85 insertions, 0 deletions
diff --git a/compiler/exo/src/Circle/CircleTypeInference.cpp b/compiler/exo/src/Circle/CircleTypeInference.cpp
new file mode 100644
index 000000000..a1e92b884
--- /dev/null
+++ b/compiler/exo/src/Circle/CircleTypeInference.cpp
@@ -0,0 +1,85 @@
+/*
+ * 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 "CircleTypeInference.h"
+
+#include "circle_schema_generated.h"
+
+#include "Dialect/Service/TFLTypeInferenceRule.h"
+#include "Dialect/IR/TFLDialect.h"
+
+#include <loco/IR/CanonicalNode.h>
+#include <loco/IR/CanonicalNodeVisitor.h>
+#include <loco/IR/CanonicalDialect.h>
+#include <loco/Service/TypeInference.h>
+
+#include <locoex/COpDialect.h>
+#include <locoex/Service/COpTypeInference.h>
+
+#include <oops/InternalExn.h>
+
+#include <stdex/Memory.h>
+
+#include <stdexcept>
+#include <type_traits>
+
+namespace
+{
+
+circle::TensorType translateLocoTypeToCircle(loco::DataType dtype)
+{
+  switch (dtype)
+  {
+    case loco::DataType::U8:
+      return circle::TensorType_UINT8;
+    //  case loco::DataType::U16: unsupported
+    //  case loco::DataType::U32: unsupported
+    //  case loco::DataType::U64: unsupported
+    case loco::DataType::S8:
+      return circle::TensorType_INT8;
+    case loco::DataType::S16:
+      return circle::TensorType_INT16;
+    case loco::DataType::S32:
+      return circle::TensorType_INT32;
+    case loco::DataType::S64:
+      return circle::TensorType_INT64;
+    case loco::DataType::FLOAT16:
+      return circle::TensorType_FLOAT16;
+    case loco::DataType::FLOAT32:
+      return circle::TensorType_FLOAT32;
+    //  case loco::DataType::FLOAT64: unsupported
+    default:
+      break;
+  }
+
+  INTERNAL_EXN_V("Invalid loco dtype", oops::to_uint32(dtype));
+}
+
+} // namespace
+
+namespace exo
+{
+namespace circle_detail
+{
+
+circle::TensorType TypeInference::get(loco::Node *node)
+{
+  assert(loco::dtype_known(node));
+  return translateLocoTypeToCircle(loco::dtype_get(node));
+}
+
+} // namespace circle_detail
+} // namespace exo