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llvm-mirror/utils/TableGen/GlobalISel/GIMatchDagPredicateDependencyEdge.h
Daniel Sanders c57301aa25 Revert "Temporarily Revert "[gicombiner] Add the MatchDag structure and parse instruction DAG's from the input""
This reverts commit e62e760f29567fe0841af870c65a4f8ef685d217.

The issue @uweigand raised should have been fixed by iterating over the
vector that owns the operand list data instead of the FoldingSet.

The MSVC issue raised by @thakis should have been fixed by relaxing the
regexes a little. I don't have a Windows machine available to test that so
I tested it by using `perl -p -e 's/0x([0-9a-f]+)/\U\1\E/g' to convert the
output of %p to the windows style.

I've guessed at the issue @phosek raised as there wasn't enough information
to investigate it. What I think is happening on that bot is the -debug
option isn't available because the second stage build is a release build.
I'm not sure why other release-mode bots didn't report it though.
2019-12-18 11:37:12 +00:00

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2.4 KiB
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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 "GIMatchDagOperands.h"
namespace llvm {
class GIMatchDag;
class GIMatchDagInstr;
class GIMatchDagEdge;
class GIMatchDagPredicate;
/// 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