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//===- GIMatchDagEdge.cpp - An edge describing a def/use lookup -----------===//
//
// 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
//
//===----------------------------------------------------------------------===//
#include "GIMatchDagEdge.h"
#include "GIMatchDagInstr.h"
#include "llvm/Support/raw_ostream.h"
using namespace llvm;
LLVM_DUMP_METHOD void GIMatchDagEdge::print(raw_ostream &OS) const {
OS << getFromMI()->getName() << "[" << getFromMO()->getName() << "] --["
<< Name << "]--> " << getToMI()->getName() << "[" << getToMO()->getName()
<< "]";
}
bool GIMatchDagEdge::isDefToUse() const {
// Def -> Def is invalid so we only need to check FromMO.
return FromMO->isDef();
}
void GIMatchDagEdge::reverse() {
std::swap(FromMI, ToMI);
std::swap(FromMO, ToMO);
}
#if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
LLVM_DUMP_METHOD void GIMatchDagEdge::dump() const { print(errs()); }
#endif // if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
raw_ostream &llvm::operator<<(raw_ostream &OS, const GIMatchDagEdge &E) {
E.print(OS);
return OS;
}
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