llvm/llvm/lib/Target/Hexagon/RDFCopy.cpp

//===- RDFCopy.cpp --------------------------------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
//
// RDF-based copy propagation.
//
//===----------------------------------------------------------------------===//

#include "RDFCopy.h"
#include "llvm/CodeGen/MachineDominators.h"
#include "llvm/CodeGen/MachineInstr.h"
#include "llvm/CodeGen/MachineOperand.h"
#include "llvm/CodeGen/MachineRegisterInfo.h"
#include "llvm/CodeGen/RDFGraph.h"
#include "llvm/CodeGen/RDFLiveness.h"
#include "llvm/CodeGen/RDFRegisters.h"
#include "llvm/CodeGen/TargetOpcodes.h"
#include "llvm/CodeGen/TargetRegisterInfo.h"
#include "llvm/MC/MCRegisterInfo.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/raw_ostream.h"
#include <cassert>
#include <cstdint>
#include <utility>

usingnamespacellvm;
usingnamespacerdf;

#ifndef NDEBUG
static cl::opt<unsigned> CpLimit("rdf-cp-limit", cl::init(0), cl::Hidden);
static unsigned CpCount = 0;
#endif

bool CopyPropagation::interpretAsCopy(const MachineInstr *MI, EqualityMap &EM) { … }

void CopyPropagation::recordCopy(NodeAddr<StmtNode*> SA, EqualityMap &EM) { … }


void CopyPropagation::updateMap(NodeAddr<InstrNode*> IA) { … }

bool CopyPropagation::scanBlock(MachineBasicBlock *B) { … }

bool CopyPropagation::run() { … }