finalize_reducer.h

// Copyright (c) Tile-AI Corporation.
// Licensed under the MIT License.

/*!
 * \file src/op/finalize_reducer.h
 * \brief Define finalize_reducer operator.
 */

#ifndef TVM_TL_OP_FINALIZE_REDUCER_H_
#define TVM_TL_OP_FINALIZE_REDUCER_H_

#include "../transform/layout_reducer.h"
#include "./operator.h"

/**
 * Get the Op singleton for the public FinalizeReducerOp handle.
 *
 * @return A reference to the Op describing FinalizeReducer.
 */
namespace tvm {
namespace tl {

using namespace tir;

class FinalizeReducerOpNode : public TileOperatorNode {
public:
  tir::Buffer reducer;
  ReducerOpType op;

  static constexpr const char *_type_key = "tl.FinalizeReducerOp";
  TVM_DECLARE_FINAL_OBJECT_INFO(FinalizeReducerOpNode, TileOperatorNode);

  static void RegisterReflection() {
    namespace refl = tvm::ffi::reflection;
    refl::ObjectDef<FinalizeReducerOpNode>()
        .def_ro("reducer", &FinalizeReducerOpNode::reducer)
        .def_ro("op", &FinalizeReducerOpNode::op);
  }

  bool SEqualReduce(const FinalizeReducerOpNode *other,
                    SEqualReducer equal) const {
    return equal(reducer, other->reducer) && equal(op, other->op);
  }

  void SHashReduce(SHashReducer hash_reduce) const {
    hash_reduce(reducer);
    hash_reduce(op);
  }
  static constexpr bool _type_has_method_sequal_reduce = true;
  static constexpr bool _type_has_method_shash_reduce = true;

  Stmt Lower(const LowerArgs &T, arith::Analyzer *analyzer) const override;
  LayoutMap InferLayout(const LayoutInferArgs &T,
                        InferLevel level) const override;
  static const Op &Get();
  TileOperator Clone() const;
};

class FinalizeReducerOp : public TileOperator {
public:
  TVM_DEFINE_OBJECT_REF_METHODS(FinalizeReducerOp, TileOperator,
                                FinalizeReducerOpNode);
  TVM_DLL FinalizeReducerOp(Array<PrimExpr> args, BufferMap vmap);
  static const Op &Get();
};

} // namespace tl
} // namespace tvm

#endif //  TVM_TL_OP_FINALIZE_REDUCER_H_