llvm/llvm/include/llvm/CodeGen/MachineInstr.h

//===- llvm/CodeGen/MachineInstr.h - MachineInstr class ---------*- 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 contains the declaration of the MachineInstr class, which is the
// basic representation for all target dependent machine instructions used by
// the back end.
//
//===----------------------------------------------------------------------===//

#ifndef LLVM_CODEGEN_MACHINEINSTR_H
#define LLVM_CODEGEN_MACHINEINSTR_H

#include "llvm/ADT/DenseMapInfo.h"
#include "llvm/ADT/PointerSumType.h"
#include "llvm/ADT/ilist.h"
#include "llvm/ADT/ilist_node.h"
#include "llvm/ADT/iterator_range.h"
#include "llvm/Analysis/MemoryLocation.h"
#include "llvm/CodeGen/MachineMemOperand.h"
#include "llvm/CodeGen/MachineOperand.h"
#include "llvm/CodeGen/TargetOpcodes.h"
#include "llvm/IR/DebugLoc.h"
#include "llvm/IR/InlineAsm.h"
#include "llvm/MC/MCInstrDesc.h"
#include "llvm/MC/MCSymbol.h"
#include "llvm/Support/ArrayRecycler.h"
#include "llvm/Support/MathExtras.h"
#include "llvm/Support/TrailingObjects.h"
#include <algorithm>
#include <cassert>
#include <cstdint>
#include <utility>

namespace llvm {

class DILabel;
class Instruction;
class MDNode;
class AAResults;
template <typename T> class ArrayRef;
class DIExpression;
class DILocalVariable;
class MachineBasicBlock;
class MachineFunction;
class MachineRegisterInfo;
class ModuleSlotTracker;
class raw_ostream;
template <typename T> class SmallVectorImpl;
class SmallBitVector;
class StringRef;
class TargetInstrInfo;
class TargetRegisterClass;
class TargetRegisterInfo;

//===----------------------------------------------------------------------===//
/// Representation of each machine instruction.
///
/// This class isn't a POD type, but it must have a trivial destructor. When a
/// MachineFunction is deleted, all the contained MachineInstrs are deallocated
/// without having their destructor called.
///
class MachineInstr
    : public ilist_node_with_parent<MachineInstr, MachineBasicBlock,
                                    ilist_sentinel_tracking<true>> { … };

/// Special DenseMapInfo traits to compare MachineInstr* by *value* of the
/// instruction rather than by pointer value.
/// The hashing and equality testing functions ignore definitions so this is
/// useful for CSE, etc.
struct MachineInstrExpressionTrait : DenseMapInfo<MachineInstr*> { … };

//===----------------------------------------------------------------------===//
// Debugging Support

inline raw_ostream& operator<<(raw_ostream &OS, const MachineInstr &MI) { … }

} // end namespace llvm

#endif // LLVM_CODEGEN_MACHINEINSTR_H