llvm/llvm/include/llvm/CodeGen/VirtRegMap.h

//===- llvm/CodeGen/VirtRegMap.h - Virtual Register Map ---------*- C++ -*-===//
//
// 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
//
//===----------------------------------------------------------------------===//
//
// This file implements a virtual register map. This maps virtual registers to
// physical registers and virtual registers to stack slots. It is created and
// updated by a register allocator and then used by a machine code rewriter that
// adds spill code and rewrites virtual into physical register references.
//
//===----------------------------------------------------------------------===//

#ifndef LLVM_CODEGEN_VIRTREGMAP_H
#define LLVM_CODEGEN_VIRTREGMAP_H

#include "llvm/ADT/IndexedMap.h"
#include "llvm/CodeGen/MachineFunctionPass.h"
#include "llvm/CodeGen/TargetRegisterInfo.h"
#include "llvm/CodeGen/TileShapeInfo.h"
#include "llvm/Pass.h"
#include <cassert>

namespace llvm {

class MachineFunction;
class MachineRegisterInfo;
class raw_ostream;
class TargetInstrInfo;

  class VirtRegMap : public MachineFunctionPass { … };

  inline raw_ostream &operator<<(raw_ostream &OS, const VirtRegMap &VRM) { … }

} // end llvm namespace

#endif // LLVM_CODEGEN_VIRTREGMAP_H