1 //===- GIMatchDagEdge.cpp - An edge describing a def/use lookup -----------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #include "GIMatchDagEdge.h" 10 #include "GIMatchDagInstr.h" 11 #include "llvm/Support/raw_ostream.h" 12 13 using namespace llvm; 14 print(raw_ostream & OS) const15LLVM_DUMP_METHOD void GIMatchDagEdge::print(raw_ostream &OS) const { 16 OS << getFromMI()->getName() << "[" << getFromMO()->getName() << "] --[" 17 << Name << "]--> " << getToMI()->getName() << "[" << getToMO()->getName() 18 << "]"; 19 } 20 isDefToUse() const21bool GIMatchDagEdge::isDefToUse() const { 22 // Def -> Def is invalid so we only need to check FromMO. 23 return FromMO->isDef(); 24 } 25 reverse()26void GIMatchDagEdge::reverse() { 27 std::swap(FromMI, ToMI); 28 std::swap(FromMO, ToMO); 29 } 30 31 #if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP) dump() const32LLVM_DUMP_METHOD void GIMatchDagEdge::dump() const { print(errs()); } 33 #endif // if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP) 34 operator <<(raw_ostream & OS,const GIMatchDagEdge & E)35raw_ostream &llvm::operator<<(raw_ostream &OS, const GIMatchDagEdge &E) { 36 E.print(OS); 37 return OS; 38 } 39