AArch64AsmPrinter.h revision 263508 
1// AArch64AsmPrinter.h - Print machine code to an AArch64 .s file -*- C++ -*-=//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9//
10// This file defines the AArch64 assembly printer class.
11//
12//===----------------------------------------------------------------------===//
13
14#ifndef LLVM_AARCH64ASMPRINTER_H
15#define LLVM_AARCH64ASMPRINTER_H
16
17#include "AArch64.h"
18#include "AArch64TargetMachine.h"
19#include "llvm/CodeGen/AsmPrinter.h"
20#include "llvm/MC/MCStreamer.h"
21#include "llvm/Support/Compiler.h"
22
23namespace llvm {
24
25class MCOperand;
26
27class LLVM_LIBRARY_VISIBILITY AArch64AsmPrinter : public AsmPrinter {
28
29  /// Subtarget - Keep a pointer to the AArch64Subtarget around so that we can
30  /// make the right decision when printing asm code for different targets.
31  const AArch64Subtarget *Subtarget;
32
33  // emitPseudoExpansionLowering - tblgen'erated.
34  bool emitPseudoExpansionLowering(MCStreamer &OutStreamer,
35                                   const MachineInstr *MI);
36
37  public:
38  explicit AArch64AsmPrinter(TargetMachine &TM, MCStreamer &Streamer)
39    : AsmPrinter(TM, Streamer) {
40    Subtarget = &TM.getSubtarget<AArch64Subtarget>();
41  }
42
43  bool lowerOperand(const MachineOperand &MO, MCOperand &MCOp) const;
44
45  MCOperand lowerSymbolOperand(const MachineOperand &MO,
46                               const MCSymbol *Sym) const;
47
48  void EmitInstruction(const MachineInstr *MI);
49  void EmitEndOfAsmFile(Module &M);
50
51  bool PrintAsmOperand(const MachineInstr *MI, unsigned OpNum,
52                       unsigned AsmVariant, const char *ExtraCode,
53                       raw_ostream &O);
54  bool PrintAsmMemoryOperand(const MachineInstr *MI, unsigned OpNum,
55                             unsigned AsmVariant, const char *ExtraCode,
56                             raw_ostream &O);
57
58  /// printSymbolicAddress - Given some kind of reasonably bare symbolic
59  /// reference, print out the appropriate asm string to represent it. If
60  /// appropriate, a relocation-specifier will be produced, composed of a
61  /// general class derived from the MO parameter and an instruction-specific
62  /// suffix, provided in Suffix. E.g. ":got_lo12:" if a Suffix of "lo12" is
63  /// given.
64  bool printSymbolicAddress(const MachineOperand &MO,
65                            bool PrintImmediatePrefix,
66                            StringRef Suffix, raw_ostream &O);
67
68  virtual const char *getPassName() const {
69    return "AArch64 Assembly Printer";
70  }
71
72  virtual bool runOnMachineFunction(MachineFunction &MF);
73};
74} // end namespace llvm
75
76#endif
77