X86AsmPrinter.h revision bb756ca24401e190e3b704e5d92759c7a79cc6b7 
1//===-- X86AsmPrinter.h - X86 implementation of AsmPrinter ------*- 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#ifndef X86ASMPRINTER_H
11#define X86ASMPRINTER_H
12
13#include "X86.h"
14#include "X86MachineFunctionInfo.h"
15#include "X86TargetMachine.h"
16#include "llvm/CodeGen/AsmPrinter.h"
17#include "llvm/CodeGen/MachineModuleInfo.h"
18#include "llvm/CodeGen/ValueTypes.h"
19#include "llvm/CodeGen/StackMaps.h"
20#include "llvm/Support/Compiler.h"
21
22namespace llvm {
23
24class MCStreamer;
25
26class LLVM_LIBRARY_VISIBILITY X86AsmPrinter : public AsmPrinter {
27  const X86Subtarget *Subtarget;
28  StackMaps SM;
29
30  // Parses operands of PATCHPOINT and STACKMAP to produce stack map Location
31  // structures. Returns a result location and an iterator to the operand
32  // immediately following the operands consumed.
33  //
34  // This method is implemented in X86MCInstLower.cpp.
35  static std::pair<StackMaps::Location, MachineInstr::const_mop_iterator>
36    stackmapOperandParser(MachineInstr::const_mop_iterator MOI,
37                          MachineInstr::const_mop_iterator MOE,
38                          const TargetMachine &TM);
39
40 public:
41  explicit X86AsmPrinter(TargetMachine &TM, MCStreamer &Streamer)
42    : AsmPrinter(TM, Streamer), SM(*this, stackmapOperandParser) {
43    Subtarget = &TM.getSubtarget<X86Subtarget>();
44  }
45
46  virtual const char *getPassName() const LLVM_OVERRIDE {
47    return "X86 Assembly / Object Emitter";
48  }
49
50  const X86Subtarget &getSubtarget() const { return *Subtarget; }
51
52  virtual void EmitStartOfAsmFile(Module &M) LLVM_OVERRIDE;
53
54  virtual void EmitEndOfAsmFile(Module &M) LLVM_OVERRIDE;
55
56  virtual void EmitInstruction(const MachineInstr *MI) LLVM_OVERRIDE;
57
58  void printSymbolOperand(const MachineOperand &MO, raw_ostream &O);
59
60  // These methods are used by the tablegen'erated instruction printer.
61  void printOperand(const MachineInstr *MI, unsigned OpNo, raw_ostream &O,
62                    const char *Modifier = 0, unsigned AsmVariant = 0);
63  void printPCRelImm(const MachineInstr *MI, unsigned OpNo, raw_ostream &O);
64
65  bool printAsmMRegister(const MachineOperand &MO, char Mode, raw_ostream &O);
66  virtual bool PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
67                               unsigned AsmVariant, const char *ExtraCode,
68                               raw_ostream &OS) LLVM_OVERRIDE;
69  virtual bool PrintAsmMemoryOperand(const MachineInstr *MI, unsigned OpNo,
70                                     unsigned AsmVariant, const char *ExtraCode,
71                                     raw_ostream &OS) LLVM_OVERRIDE;
72
73  void printMemReference(const MachineInstr *MI, unsigned Op, raw_ostream &O,
74                         const char *Modifier=NULL);
75  void printLeaMemReference(const MachineInstr *MI, unsigned Op, raw_ostream &O,
76                            const char *Modifier=NULL);
77
78  void printIntelMemReference(const MachineInstr *MI, unsigned Op,
79                              raw_ostream &O, const char *Modifier=NULL,
80                              unsigned AsmVariant = 1);
81
82  virtual bool runOnMachineFunction(MachineFunction &F) LLVM_OVERRIDE;
83};
84
85} // end namespace llvm
86
87#endif
88