expr_operator.h

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 * distributed with this work for additional information
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 * to you 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,
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// Acknowledgement: This file originates from incubator-tvm
// Acknowledgement: Most operator APIs originate from Halide.
#ifndef MXNET_EXPR_OPERATOR_H_
#define MXNET_EXPR_OPERATOR_H_

#include <mxnet/ir/expr.h>

namespace mxnet {

template<typename ValueType>
inline PrimExpr MakeConstScalar(MXNetDataType t, ValueType value) {
  if (t.is_int()) return IntImm(t, static_cast<int64_t>(value));
  if (t.is_float()) return FloatImm(t, static_cast<double>(value));
  // customized type and uint is not supported for MXNet for now
  LOG(FATAL) << "cannot make const for type " << t;
  return PrimExpr();
}


template<typename ValueType>
inline PrimExpr make_const(MXNetDataType t, ValueType value) {
  if (t.lanes() == 1) {
    return MakeConstScalar(t, value);
  } else {
    LOG(FATAL) << "MXNetDataType::lanes() != 1 is not supported ";
  }
  return PrimExpr();
}

}  // namespace mxnet

#endif  // MXNET_EXPR_OPERATOR_H_