1 files changed, 59 insertions, 0 deletions
diff --git a/compiler/locoex-customop/src/Service/COpShapeInferenceRule.cpp b/compiler/locoex-customop/src/Service/COpShapeInferenceRule.cpp
new file mode 100644
index 000000000..4dc8f461f
--- /dev/null
+++ b/compiler/locoex-customop/src/Service/COpShapeInferenceRule.cpp
@@ -0,0 +1,59 @@
+/*
+ * 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 "locoex/Service/COpShapeInferenceRule.h"
+
+#include "locoex/COpDialect.h"
+#include "locoex/COpNode.h"
+#include "locoex/COpCall.h"
+
+#include <loco/Service/ShapeInference.h>
+
+#include <cassert>
+
+namespace locoex
+{
+
+bool COpShapeInferenceRule::recognize(const loco::Dialect *d) const
+{
+  return COpDialect::get() == d;
+}
+
+bool COpShapeInferenceRule::infer(const loco::Node *node, loco::NodeShape &shape) const
+{
+  assert(node->dialect() == COpDialect::get());
+  assert(dynamic_cast<const COpNode *>(node) != nullptr);
+
+  auto cop_call = dynamic_cast<const COpCall *>(node);
+
+  // Note that the shape of custom op is considered as TensorShape
+  // TODO Decide how to deal with this shape error cases
+  for (uint32_t n = 0; n < cop_call->arity(); n++)
+    if (loco::shape_get(cop_call->input(n)).domain() != loco::Domain::Tensor)
+      throw std::runtime_error("Input of custom op must belong to Tensor domain.");
+
+  loco::TensorShape out_shape;
+
+  out_shape.rank(cop_call->rank());
+  for (uint32_t d = 0; d < cop_call->rank(); d++)
+    out_shape.dim(d) = cop_call->dim(d);
+
+  shape.set(out_shape);
+
+  return true;
+}
+
+} // namespace locoex