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