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61 lines
2.4 KiB
61 lines
2.4 KiB
4 months ago
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//===- GIMatchDagPredicateDependencyEdge - Ensure predicates have inputs --===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_UTILS_TABLEGEN_GIMATCHDAGPREDICATEEDGE_H
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#define LLVM_UTILS_TABLEGEN_GIMATCHDAGPREDICATEEDGE_H
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#include "GIMatchDagOperands.h"
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namespace llvm {
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class GIMatchDag;
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class GIMatchDagInstr;
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class GIMatchDagEdge;
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class GIMatchDagPredicate;
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/// Represents a dependency that must be met to evaluate a predicate.
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///
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/// Instances of this class objects are owned by the GIMatchDag and are not
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/// shareable between instances of GIMatchDag.
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class GIMatchDagPredicateDependencyEdge {
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/// The MI that must be available in order to test the predicate.
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const GIMatchDagInstr *RequiredMI;
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/// The MO that must be available in order to test the predicate. May be
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/// nullptr when only the MI is required.
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const GIMatchDagOperand *RequiredMO;
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/// The Predicate that requires information from RequiredMI/RequiredMO.
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const GIMatchDagPredicate *Predicate;
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/// The Predicate operand that requires information from
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/// RequiredMI/RequiredMO.
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const GIMatchDagOperand *PredicateOp;
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public:
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GIMatchDagPredicateDependencyEdge(const GIMatchDagInstr *RequiredMI,
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const GIMatchDagOperand *RequiredMO,
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const GIMatchDagPredicate *Predicate,
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const GIMatchDagOperand *PredicateOp)
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: RequiredMI(RequiredMI), RequiredMO(RequiredMO), Predicate(Predicate),
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PredicateOp(PredicateOp) {}
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const GIMatchDagInstr *getRequiredMI() const { return RequiredMI; }
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const GIMatchDagOperand *getRequiredMO() const { return RequiredMO; }
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const GIMatchDagPredicate *getPredicate() const { return Predicate; }
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const GIMatchDagOperand *getPredicateOp() const { return PredicateOp; }
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void print(raw_ostream &OS) const;
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#if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
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LLVM_DUMP_METHOD void dump() const;
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#endif // if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
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};
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raw_ostream &operator<<(raw_ostream &OS,
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const GIMatchDagPredicateDependencyEdge &N);
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} // end namespace llvm
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#endif // ifndef LLVM_UTILS_TABLEGEN_GIMATCHDAGPREDICATEEDGE_H
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