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//===- GIMatchDagPredicateDependencyEdge - Ensure predicates have inputs --===//
//
// 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
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_UTILS_TABLEGEN_GIMATCHDAGPREDICATEEDGE_H
#define LLVM_UTILS_TABLEGEN_GIMATCHDAGPREDICATEEDGE_H
#include "llvm/Support/Compiler.h"
namespace llvm {
class GIMatchDagInstr;
class GIMatchDagPredicate;
class GIMatchDagOperand;
class raw_ostream;
/// Represents a dependency that must be met to evaluate a predicate.
///
/// Instances of this class objects are owned by the GIMatchDag and are not
/// shareable between instances of GIMatchDag.
class GIMatchDagPredicateDependencyEdge {
/// The MI that must be available in order to test the predicate.
const GIMatchDagInstr *RequiredMI;
/// The MO that must be available in order to test the predicate. May be
/// nullptr when only the MI is required.
const GIMatchDagOperand *RequiredMO;
/// The Predicate that requires information from RequiredMI/RequiredMO.
const GIMatchDagPredicate *Predicate;
/// The Predicate operand that requires information from
/// RequiredMI/RequiredMO.
const GIMatchDagOperand *PredicateOp;
public:
GIMatchDagPredicateDependencyEdge(const GIMatchDagInstr *RequiredMI,
const GIMatchDagOperand *RequiredMO,
const GIMatchDagPredicate *Predicate,
const GIMatchDagOperand *PredicateOp)
: RequiredMI(RequiredMI), RequiredMO(RequiredMO), Predicate(Predicate),
PredicateOp(PredicateOp) {}
const GIMatchDagInstr *getRequiredMI() const { return RequiredMI; }
const GIMatchDagOperand *getRequiredMO() const { return RequiredMO; }
const GIMatchDagPredicate *getPredicate() const { return Predicate; }
const GIMatchDagOperand *getPredicateOp() const { return PredicateOp; }
void print(raw_ostream &OS) const;
#if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
LLVM_DUMP_METHOD void dump() const;
#endif // if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
};
raw_ostream &operator<<(raw_ostream &OS,
const GIMatchDagPredicateDependencyEdge &N);
} // end namespace llvm
#endif // ifndef LLVM_UTILS_TABLEGEN_GIMATCHDAGPREDICATEEDGE_H
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