dataflow_matcher.h

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 * Licensed to the Apache Software Foundation (ASF) under one
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 * to you under the Apache License, Version 2.0 (the
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#ifndef TVM_RELAX_DATAFLOW_MATCHER_H_
#define TVM_RELAX_DATAFLOW_MATCHER_H_
 
#include <tvm/relax/dataflow_pattern.h>
#include <tvm/runtime/container/optional.h>
#include <tvm/runtime/packed_func.h>
 
#include <memory>
 
namespace tvm {
namespace relax {
 
bool MatchExpr(DFPattern pattern, Expr expr, Optional<runtime::Map<Var, Expr>> bindings = NullOpt);
 
/* \brief Similar to above, but return pairs of a matching pattern and an expression.  */
Optional<Map<DFPattern, Expr>> ExtractMatchedExpr(
    DFPattern pattern, Expr expr, Optional<runtime::Map<Var, Expr>> bindings = NullOpt);
 
TVM_DLL Optional<Map<DFPattern, Var>> MatchGraph(const PatternContext& ctx,
                                                 const DataflowBlock& dfb);
 
TVM_DLL Function RewriteBindings(
    const PatternContext& ctx,
    runtime::TypedPackedFunc<Map<Var, Expr>(Map<DFPattern, Var>, Map<Var, Expr>)> rewriter,
    Function f);
 
TVM_DLL Function RewriteCall(const DFPattern& pattern,
                             runtime::TypedPackedFunc<Expr(Expr, Map<DFPattern, Expr>)> rewriter,
                             Function func);
 
}  // namespace relax
}  // namespace tvm
 
#endif  // TVM_RELAX_DATAFLOW_MATCHER_H_