llvm/llvm/include/llvm/CodeGen/LiveRegUnits.h

//===- llvm/CodeGen/LiveRegUnits.h - Register Unit Set ----------*- 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
//
//===----------------------------------------------------------------------===//
//
/// \file
/// A set of register units. It is intended for register liveness tracking.
//
//===----------------------------------------------------------------------===//

#ifndef LLVM_CODEGEN_LIVEREGUNITS_H
#define LLVM_CODEGEN_LIVEREGUNITS_H

#include "llvm/ADT/BitVector.h"
#include "llvm/CodeGen/MachineInstrBundle.h"
#include "llvm/CodeGen/TargetRegisterInfo.h"
#include "llvm/MC/LaneBitmask.h"
#include "llvm/MC/MCRegisterInfo.h"
#include <cstdint>

namespace llvm {

class MachineInstr;
class MachineBasicBlock;

/// A set of register units used to track register liveness.
class LiveRegUnits { … };

/// Returns an iterator range over all physical register and mask operands for
/// \p MI and bundled instructions. This also skips any debug operands.
inline iterator_range<
    filter_iterator<ConstMIBundleOperands, bool (*)(const MachineOperand &)>>
phys_regs_and_masks(const MachineInstr &MI) { … }

} // end namespace llvm

#endif // LLVM_CODEGEN_LIVEREGUNITS_H