llvm/llvm/utils/TableGen/Common/GlobalISel/CombinerUtils.h

//===- CombinerUtils.h ----------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
/// \file Utility functions used by both Combiner backends.
//
//===----------------------------------------------------------------------===//

#ifndef LLVM_UTILS_TABLEGEN_COMMON_GLOBALISEL_COMBINERUTILS_H
#define LLVM_UTILS_TABLEGEN_COMMON_GLOBALISEL_COMBINERUTILS_H

#include "llvm/ADT/StringRef.h"
#include "llvm/TableGen/Record.h"

namespace llvm {

/// A convenience function to check that an Init refers to a specific def. This
/// is primarily useful for testing for defs and similar in DagInit's since
/// DagInit's support any type inside them.
inline bool isSpecificDef(const Init &N, StringRef Def) { … }

/// A convenience function to check that an Init refers to a def that is a
/// subclass of the given class and coerce it to a def if it is. This is
/// primarily useful for testing for subclasses of GIDefKind and similar in
/// DagInit's since DagInit's support any type inside them.
inline Record *getDefOfSubClass(const Init &N, StringRef Cls) { … }

/// A convenience function to check that an Init refers to a dag whose operator
/// is a specific def and coerce it to a dag if it is. This is primarily useful
/// for testing for subclasses of GIDefKind and similar in DagInit's since
/// DagInit's support any type inside them.
inline const DagInit *getDagWithSpecificOperator(const Init &N,
                                                 StringRef Name) { … }

/// A convenience function to check that an Init refers to a dag whose operator
/// is a def that is a subclass of the given class and coerce it to a dag if it
/// is. This is primarily useful for testing for subclasses of GIDefKind and
/// similar in DagInit's since DagInit's support any type inside them.
inline const DagInit *getDagWithOperatorOfSubClass(const Init &N,
                                                   StringRef Cls) { … }

/// Copies a StringRef into a static pool to preserve it.
StringRef insertStrRef(StringRef S);

} // namespace llvm

#endif // LLVM_UTILS_TABLEGEN_COMMON_GLOBALISEL_COMBINERUTILS_H