1//==-- AArch64InstPrinter.cpp - Convert AArch64 MCInst to assembly syntax --==//
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 class prints an AArch64 MCInst to a .s file.
11//
12//===----------------------------------------------------------------------===//
13
14#include "AArch64InstPrinter.h"
15#include "MCTargetDesc/AArch64AddressingModes.h"
16#include "Utils/AArch64BaseInfo.h"
17#include "llvm/ADT/STLExtras.h"
18#include "llvm/ADT/StringExtras.h"
19#include "llvm/MC/MCExpr.h"
20#include "llvm/MC/MCInst.h"
21#include "llvm/MC/MCRegisterInfo.h"
22#include "llvm/Support/Format.h"
23#include "llvm/Support/raw_ostream.h"
24using namespace llvm;
25
26#define DEBUG_TYPE "asm-printer"
27
28#define GET_INSTRUCTION_NAME
29#define PRINT_ALIAS_INSTR
30#include "AArch64GenAsmWriter.inc"
31#define GET_INSTRUCTION_NAME
32#define PRINT_ALIAS_INSTR
33#include "AArch64GenAsmWriter1.inc"
34
35AArch64InstPrinter::AArch64InstPrinter(const MCAsmInfo &MAI,
36                                       const MCInstrInfo &MII,
37                                       const MCRegisterInfo &MRI)
38    : MCInstPrinter(MAI, MII, MRI) {}
39
40AArch64AppleInstPrinter::AArch64AppleInstPrinter(const MCAsmInfo &MAI,
41                                                 const MCInstrInfo &MII,
42                                                 const MCRegisterInfo &MRI)
43    : AArch64InstPrinter(MAI, MII, MRI) {}
44
45void AArch64InstPrinter::printRegName(raw_ostream &OS, unsigned RegNo) const {
46  // This is for .cfi directives.
47  OS << getRegisterName(RegNo);
48}
49
50void AArch64InstPrinter::printInst(const MCInst *MI, raw_ostream &O,
51                                   StringRef Annot,
52                                   const MCSubtargetInfo &STI) {
53  // Check for special encodings and print the canonical alias instead.
54
55  unsigned Opcode = MI->getOpcode();
56
57  if (Opcode == AArch64::SYSxt)
58    if (printSysAlias(MI, STI, O)) {
59      printAnnotation(O, Annot);
60      return;
61    }
62
63  // SBFM/UBFM should print to a nicer aliased form if possible.
64  if (Opcode == AArch64::SBFMXri || Opcode == AArch64::SBFMWri ||
65      Opcode == AArch64::UBFMXri || Opcode == AArch64::UBFMWri) {
66    const MCOperand &Op0 = MI->getOperand(0);
67    const MCOperand &Op1 = MI->getOperand(1);
68    const MCOperand &Op2 = MI->getOperand(2);
69    const MCOperand &Op3 = MI->getOperand(3);
70
71    bool IsSigned = (Opcode == AArch64::SBFMXri || Opcode == AArch64::SBFMWri);
72    bool Is64Bit = (Opcode == AArch64::SBFMXri || Opcode == AArch64::UBFMXri);
73    if (Op2.isImm() && Op2.getImm() == 0 && Op3.isImm()) {
74      const char *AsmMnemonic = nullptr;
75
76      switch (Op3.getImm()) {
77      default:
78        break;
79      case 7:
80        if (IsSigned)
81          AsmMnemonic = "sxtb";
82        else if (!Is64Bit)
83          AsmMnemonic = "uxtb";
84        break;
85      case 15:
86        if (IsSigned)
87          AsmMnemonic = "sxth";
88        else if (!Is64Bit)
89          AsmMnemonic = "uxth";
90        break;
91      case 31:
92        // *xtw is only valid for signed 64-bit operations.
93        if (Is64Bit && IsSigned)
94          AsmMnemonic = "sxtw";
95        break;
96      }
97
98      if (AsmMnemonic) {
99        O << '\t' << AsmMnemonic << '\t' << getRegisterName(Op0.getReg())
100          << ", " << getRegisterName(getWRegFromXReg(Op1.getReg()));
101        printAnnotation(O, Annot);
102        return;
103      }
104    }
105
106    // All immediate shifts are aliases, implemented using the Bitfield
107    // instruction. In all cases the immediate shift amount shift must be in
108    // the range 0 to (reg.size -1).
109    if (Op2.isImm() && Op3.isImm()) {
110      const char *AsmMnemonic = nullptr;
111      int shift = 0;
112      int64_t immr = Op2.getImm();
113      int64_t imms = Op3.getImm();
114      if (Opcode == AArch64::UBFMWri && imms != 0x1F && ((imms + 1) == immr)) {
115        AsmMnemonic = "lsl";
116        shift = 31 - imms;
117      } else if (Opcode == AArch64::UBFMXri && imms != 0x3f &&
118                 ((imms + 1 == immr))) {
119        AsmMnemonic = "lsl";
120        shift = 63 - imms;
121      } else if (Opcode == AArch64::UBFMWri && imms == 0x1f) {
122        AsmMnemonic = "lsr";
123        shift = immr;
124      } else if (Opcode == AArch64::UBFMXri && imms == 0x3f) {
125        AsmMnemonic = "lsr";
126        shift = immr;
127      } else if (Opcode == AArch64::SBFMWri && imms == 0x1f) {
128        AsmMnemonic = "asr";
129        shift = immr;
130      } else if (Opcode == AArch64::SBFMXri && imms == 0x3f) {
131        AsmMnemonic = "asr";
132        shift = immr;
133      }
134      if (AsmMnemonic) {
135        O << '\t' << AsmMnemonic << '\t' << getRegisterName(Op0.getReg())
136          << ", " << getRegisterName(Op1.getReg()) << ", #" << shift;
137        printAnnotation(O, Annot);
138        return;
139      }
140    }
141
142    // SBFIZ/UBFIZ aliases
143    if (Op2.getImm() > Op3.getImm()) {
144      O << '\t' << (IsSigned ? "sbfiz" : "ubfiz") << '\t'
145        << getRegisterName(Op0.getReg()) << ", " << getRegisterName(Op1.getReg())
146        << ", #" << (Is64Bit ? 64 : 32) - Op2.getImm() << ", #" << Op3.getImm() + 1;
147      printAnnotation(O, Annot);
148      return;
149    }
150
151    // Otherwise SBFX/UBFX is the preferred form
152    O << '\t' << (IsSigned ? "sbfx" : "ubfx") << '\t'
153      << getRegisterName(Op0.getReg()) << ", " << getRegisterName(Op1.getReg())
154      << ", #" << Op2.getImm() << ", #" << Op3.getImm() - Op2.getImm() + 1;
155    printAnnotation(O, Annot);
156    return;
157  }
158
159  if (Opcode == AArch64::BFMXri || Opcode == AArch64::BFMWri) {
160    const MCOperand &Op0 = MI->getOperand(0); // Op1 == Op0
161    const MCOperand &Op2 = MI->getOperand(2);
162    int ImmR = MI->getOperand(3).getImm();
163    int ImmS = MI->getOperand(4).getImm();
164
165    if ((Op2.getReg() == AArch64::WZR || Op2.getReg() == AArch64::XZR) &&
166        (ImmR == 0 || ImmS < ImmR)) {
167      // BFC takes precedence over its entire range, sligtly differently to BFI.
168      int BitWidth = Opcode == AArch64::BFMXri ? 64 : 32;
169      int LSB = (BitWidth - ImmR) % BitWidth;
170      int Width = ImmS + 1;
171
172      O << "\tbfc\t" << getRegisterName(Op0.getReg())
173        << ", #" << LSB << ", #" << Width;
174      printAnnotation(O, Annot);
175      return;
176    } else if (ImmS < ImmR) {
177      // BFI alias
178      int BitWidth = Opcode == AArch64::BFMXri ? 64 : 32;
179      int LSB = (BitWidth - ImmR) % BitWidth;
180      int Width = ImmS + 1;
181
182      O << "\tbfi\t" << getRegisterName(Op0.getReg()) << ", "
183        << getRegisterName(Op2.getReg()) << ", #" << LSB << ", #" << Width;
184      printAnnotation(O, Annot);
185      return;
186    }
187
188    int LSB = ImmR;
189    int Width = ImmS - ImmR + 1;
190    // Otherwise BFXIL the preferred form
191    O << "\tbfxil\t"
192      << getRegisterName(Op0.getReg()) << ", " << getRegisterName(Op2.getReg())
193      << ", #" << LSB << ", #" << Width;
194    printAnnotation(O, Annot);
195    return;
196  }
197
198  // Symbolic operands for MOVZ, MOVN and MOVK already imply a shift
199  // (e.g. :gottprel_g1: is always going to be "lsl #16") so it should not be
200  // printed.
201  if ((Opcode == AArch64::MOVZXi || Opcode == AArch64::MOVZWi ||
202       Opcode == AArch64::MOVNXi || Opcode == AArch64::MOVNWi) &&
203      MI->getOperand(1).isExpr()) {
204    if (Opcode == AArch64::MOVZXi || Opcode == AArch64::MOVZWi)
205      O << "\tmovz\t";
206    else
207      O << "\tmovn\t";
208
209    O << getRegisterName(MI->getOperand(0).getReg()) << ", #";
210    MI->getOperand(1).getExpr()->print(O, &MAI);
211    return;
212  }
213
214  if ((Opcode == AArch64::MOVKXi || Opcode == AArch64::MOVKWi) &&
215      MI->getOperand(2).isExpr()) {
216    O << "\tmovk\t" << getRegisterName(MI->getOperand(0).getReg()) << ", #";
217    MI->getOperand(2).getExpr()->print(O, &MAI);
218    return;
219  }
220
221  if (!printAliasInstr(MI, STI, O))
222    printInstruction(MI, STI, O);
223
224  printAnnotation(O, Annot);
225}
226
227static bool isTblTbxInstruction(unsigned Opcode, StringRef &Layout,
228                                bool &IsTbx) {
229  switch (Opcode) {
230  case AArch64::TBXv8i8One:
231  case AArch64::TBXv8i8Two:
232  case AArch64::TBXv8i8Three:
233  case AArch64::TBXv8i8Four:
234    IsTbx = true;
235    Layout = ".8b";
236    return true;
237  case AArch64::TBLv8i8One:
238  case AArch64::TBLv8i8Two:
239  case AArch64::TBLv8i8Three:
240  case AArch64::TBLv8i8Four:
241    IsTbx = false;
242    Layout = ".8b";
243    return true;
244  case AArch64::TBXv16i8One:
245  case AArch64::TBXv16i8Two:
246  case AArch64::TBXv16i8Three:
247  case AArch64::TBXv16i8Four:
248    IsTbx = true;
249    Layout = ".16b";
250    return true;
251  case AArch64::TBLv16i8One:
252  case AArch64::TBLv16i8Two:
253  case AArch64::TBLv16i8Three:
254  case AArch64::TBLv16i8Four:
255    IsTbx = false;
256    Layout = ".16b";
257    return true;
258  default:
259    return false;
260  }
261}
262
263struct LdStNInstrDesc {
264  unsigned Opcode;
265  const char *Mnemonic;
266  const char *Layout;
267  int ListOperand;
268  bool HasLane;
269  int NaturalOffset;
270};
271
272static const LdStNInstrDesc LdStNInstInfo[] = {
273  { AArch64::LD1i8,             "ld1",  ".b",     1, true,  0  },
274  { AArch64::LD1i16,            "ld1",  ".h",     1, true,  0  },
275  { AArch64::LD1i32,            "ld1",  ".s",     1, true,  0  },
276  { AArch64::LD1i64,            "ld1",  ".d",     1, true,  0  },
277  { AArch64::LD1i8_POST,        "ld1",  ".b",     2, true,  1  },
278  { AArch64::LD1i16_POST,       "ld1",  ".h",     2, true,  2  },
279  { AArch64::LD1i32_POST,       "ld1",  ".s",     2, true,  4  },
280  { AArch64::LD1i64_POST,       "ld1",  ".d",     2, true,  8  },
281  { AArch64::LD1Rv16b,          "ld1r", ".16b",   0, false, 0  },
282  { AArch64::LD1Rv8h,           "ld1r", ".8h",    0, false, 0  },
283  { AArch64::LD1Rv4s,           "ld1r", ".4s",    0, false, 0  },
284  { AArch64::LD1Rv2d,           "ld1r", ".2d",    0, false, 0  },
285  { AArch64::LD1Rv8b,           "ld1r", ".8b",    0, false, 0  },
286  { AArch64::LD1Rv4h,           "ld1r", ".4h",    0, false, 0  },
287  { AArch64::LD1Rv2s,           "ld1r", ".2s",    0, false, 0  },
288  { AArch64::LD1Rv1d,           "ld1r", ".1d",    0, false, 0  },
289  { AArch64::LD1Rv16b_POST,     "ld1r", ".16b",   1, false, 1  },
290  { AArch64::LD1Rv8h_POST,      "ld1r", ".8h",    1, false, 2  },
291  { AArch64::LD1Rv4s_POST,      "ld1r", ".4s",    1, false, 4  },
292  { AArch64::LD1Rv2d_POST,      "ld1r", ".2d",    1, false, 8  },
293  { AArch64::LD1Rv8b_POST,      "ld1r", ".8b",    1, false, 1  },
294  { AArch64::LD1Rv4h_POST,      "ld1r", ".4h",    1, false, 2  },
295  { AArch64::LD1Rv2s_POST,      "ld1r", ".2s",    1, false, 4  },
296  { AArch64::LD1Rv1d_POST,      "ld1r", ".1d",    1, false, 8  },
297  { AArch64::LD1Onev16b,        "ld1",  ".16b",   0, false, 0  },
298  { AArch64::LD1Onev8h,         "ld1",  ".8h",    0, false, 0  },
299  { AArch64::LD1Onev4s,         "ld1",  ".4s",    0, false, 0  },
300  { AArch64::LD1Onev2d,         "ld1",  ".2d",    0, false, 0  },
301  { AArch64::LD1Onev8b,         "ld1",  ".8b",    0, false, 0  },
302  { AArch64::LD1Onev4h,         "ld1",  ".4h",    0, false, 0  },
303  { AArch64::LD1Onev2s,         "ld1",  ".2s",    0, false, 0  },
304  { AArch64::LD1Onev1d,         "ld1",  ".1d",    0, false, 0  },
305  { AArch64::LD1Onev16b_POST,   "ld1",  ".16b",   1, false, 16 },
306  { AArch64::LD1Onev8h_POST,    "ld1",  ".8h",    1, false, 16 },
307  { AArch64::LD1Onev4s_POST,    "ld1",  ".4s",    1, false, 16 },
308  { AArch64::LD1Onev2d_POST,    "ld1",  ".2d",    1, false, 16 },
309  { AArch64::LD1Onev8b_POST,    "ld1",  ".8b",    1, false, 8  },
310  { AArch64::LD1Onev4h_POST,    "ld1",  ".4h",    1, false, 8  },
311  { AArch64::LD1Onev2s_POST,    "ld1",  ".2s",    1, false, 8  },
312  { AArch64::LD1Onev1d_POST,    "ld1",  ".1d",    1, false, 8  },
313  { AArch64::LD1Twov16b,        "ld1",  ".16b",   0, false, 0  },
314  { AArch64::LD1Twov8h,         "ld1",  ".8h",    0, false, 0  },
315  { AArch64::LD1Twov4s,         "ld1",  ".4s",    0, false, 0  },
316  { AArch64::LD1Twov2d,         "ld1",  ".2d",    0, false, 0  },
317  { AArch64::LD1Twov8b,         "ld1",  ".8b",    0, false, 0  },
318  { AArch64::LD1Twov4h,         "ld1",  ".4h",    0, false, 0  },
319  { AArch64::LD1Twov2s,         "ld1",  ".2s",    0, false, 0  },
320  { AArch64::LD1Twov1d,         "ld1",  ".1d",    0, false, 0  },
321  { AArch64::LD1Twov16b_POST,   "ld1",  ".16b",   1, false, 32 },
322  { AArch64::LD1Twov8h_POST,    "ld1",  ".8h",    1, false, 32 },
323  { AArch64::LD1Twov4s_POST,    "ld1",  ".4s",    1, false, 32 },
324  { AArch64::LD1Twov2d_POST,    "ld1",  ".2d",    1, false, 32 },
325  { AArch64::LD1Twov8b_POST,    "ld1",  ".8b",    1, false, 16 },
326  { AArch64::LD1Twov4h_POST,    "ld1",  ".4h",    1, false, 16 },
327  { AArch64::LD1Twov2s_POST,    "ld1",  ".2s",    1, false, 16 },
328  { AArch64::LD1Twov1d_POST,    "ld1",  ".1d",    1, false, 16 },
329  { AArch64::LD1Threev16b,      "ld1",  ".16b",   0, false, 0  },
330  { AArch64::LD1Threev8h,       "ld1",  ".8h",    0, false, 0  },
331  { AArch64::LD1Threev4s,       "ld1",  ".4s",    0, false, 0  },
332  { AArch64::LD1Threev2d,       "ld1",  ".2d",    0, false, 0  },
333  { AArch64::LD1Threev8b,       "ld1",  ".8b",    0, false, 0  },
334  { AArch64::LD1Threev4h,       "ld1",  ".4h",    0, false, 0  },
335  { AArch64::LD1Threev2s,       "ld1",  ".2s",    0, false, 0  },
336  { AArch64::LD1Threev1d,       "ld1",  ".1d",    0, false, 0  },
337  { AArch64::LD1Threev16b_POST, "ld1",  ".16b",   1, false, 48 },
338  { AArch64::LD1Threev8h_POST,  "ld1",  ".8h",    1, false, 48 },
339  { AArch64::LD1Threev4s_POST,  "ld1",  ".4s",    1, false, 48 },
340  { AArch64::LD1Threev2d_POST,  "ld1",  ".2d",    1, false, 48 },
341  { AArch64::LD1Threev8b_POST,  "ld1",  ".8b",    1, false, 24 },
342  { AArch64::LD1Threev4h_POST,  "ld1",  ".4h",    1, false, 24 },
343  { AArch64::LD1Threev2s_POST,  "ld1",  ".2s",    1, false, 24 },
344  { AArch64::LD1Threev1d_POST,  "ld1",  ".1d",    1, false, 24 },
345  { AArch64::LD1Fourv16b,       "ld1",  ".16b",   0, false, 0  },
346  { AArch64::LD1Fourv8h,        "ld1",  ".8h",    0, false, 0  },
347  { AArch64::LD1Fourv4s,        "ld1",  ".4s",    0, false, 0  },
348  { AArch64::LD1Fourv2d,        "ld1",  ".2d",    0, false, 0  },
349  { AArch64::LD1Fourv8b,        "ld1",  ".8b",    0, false, 0  },
350  { AArch64::LD1Fourv4h,        "ld1",  ".4h",    0, false, 0  },
351  { AArch64::LD1Fourv2s,        "ld1",  ".2s",    0, false, 0  },
352  { AArch64::LD1Fourv1d,        "ld1",  ".1d",    0, false, 0  },
353  { AArch64::LD1Fourv16b_POST,  "ld1",  ".16b",   1, false, 64 },
354  { AArch64::LD1Fourv8h_POST,   "ld1",  ".8h",    1, false, 64 },
355  { AArch64::LD1Fourv4s_POST,   "ld1",  ".4s",    1, false, 64 },
356  { AArch64::LD1Fourv2d_POST,   "ld1",  ".2d",    1, false, 64 },
357  { AArch64::LD1Fourv8b_POST,   "ld1",  ".8b",    1, false, 32 },
358  { AArch64::LD1Fourv4h_POST,   "ld1",  ".4h",    1, false, 32 },
359  { AArch64::LD1Fourv2s_POST,   "ld1",  ".2s",    1, false, 32 },
360  { AArch64::LD1Fourv1d_POST,   "ld1",  ".1d",    1, false, 32 },
361  { AArch64::LD2i8,             "ld2",  ".b",     1, true,  0  },
362  { AArch64::LD2i16,            "ld2",  ".h",     1, true,  0  },
363  { AArch64::LD2i32,            "ld2",  ".s",     1, true,  0  },
364  { AArch64::LD2i64,            "ld2",  ".d",     1, true,  0  },
365  { AArch64::LD2i8_POST,        "ld2",  ".b",     2, true,  2  },
366  { AArch64::LD2i16_POST,       "ld2",  ".h",     2, true,  4  },
367  { AArch64::LD2i32_POST,       "ld2",  ".s",     2, true,  8  },
368  { AArch64::LD2i64_POST,       "ld2",  ".d",     2, true,  16  },
369  { AArch64::LD2Rv16b,          "ld2r", ".16b",   0, false, 0  },
370  { AArch64::LD2Rv8h,           "ld2r", ".8h",    0, false, 0  },
371  { AArch64::LD2Rv4s,           "ld2r", ".4s",    0, false, 0  },
372  { AArch64::LD2Rv2d,           "ld2r", ".2d",    0, false, 0  },
373  { AArch64::LD2Rv8b,           "ld2r", ".8b",    0, false, 0  },
374  { AArch64::LD2Rv4h,           "ld2r", ".4h",    0, false, 0  },
375  { AArch64::LD2Rv2s,           "ld2r", ".2s",    0, false, 0  },
376  { AArch64::LD2Rv1d,           "ld2r", ".1d",    0, false, 0  },
377  { AArch64::LD2Rv16b_POST,     "ld2r", ".16b",   1, false, 2  },
378  { AArch64::LD2Rv8h_POST,      "ld2r", ".8h",    1, false, 4  },
379  { AArch64::LD2Rv4s_POST,      "ld2r", ".4s",    1, false, 8  },
380  { AArch64::LD2Rv2d_POST,      "ld2r", ".2d",    1, false, 16 },
381  { AArch64::LD2Rv8b_POST,      "ld2r", ".8b",    1, false, 2  },
382  { AArch64::LD2Rv4h_POST,      "ld2r", ".4h",    1, false, 4  },
383  { AArch64::LD2Rv2s_POST,      "ld2r", ".2s",    1, false, 8  },
384  { AArch64::LD2Rv1d_POST,      "ld2r", ".1d",    1, false, 16 },
385  { AArch64::LD2Twov16b,        "ld2",  ".16b",   0, false, 0  },
386  { AArch64::LD2Twov8h,         "ld2",  ".8h",    0, false, 0  },
387  { AArch64::LD2Twov4s,         "ld2",  ".4s",    0, false, 0  },
388  { AArch64::LD2Twov2d,         "ld2",  ".2d",    0, false, 0  },
389  { AArch64::LD2Twov8b,         "ld2",  ".8b",    0, false, 0  },
390  { AArch64::LD2Twov4h,         "ld2",  ".4h",    0, false, 0  },
391  { AArch64::LD2Twov2s,         "ld2",  ".2s",    0, false, 0  },
392  { AArch64::LD2Twov16b_POST,   "ld2",  ".16b",   1, false, 32 },
393  { AArch64::LD2Twov8h_POST,    "ld2",  ".8h",    1, false, 32 },
394  { AArch64::LD2Twov4s_POST,    "ld2",  ".4s",    1, false, 32 },
395  { AArch64::LD2Twov2d_POST,    "ld2",  ".2d",    1, false, 32 },
396  { AArch64::LD2Twov8b_POST,    "ld2",  ".8b",    1, false, 16 },
397  { AArch64::LD2Twov4h_POST,    "ld2",  ".4h",    1, false, 16 },
398  { AArch64::LD2Twov2s_POST,    "ld2",  ".2s",    1, false, 16 },
399  { AArch64::LD3i8,             "ld3",  ".b",     1, true,  0  },
400  { AArch64::LD3i16,            "ld3",  ".h",     1, true,  0  },
401  { AArch64::LD3i32,            "ld3",  ".s",     1, true,  0  },
402  { AArch64::LD3i64,            "ld3",  ".d",     1, true,  0  },
403  { AArch64::LD3i8_POST,        "ld3",  ".b",     2, true,  3  },
404  { AArch64::LD3i16_POST,       "ld3",  ".h",     2, true,  6  },
405  { AArch64::LD3i32_POST,       "ld3",  ".s",     2, true,  12  },
406  { AArch64::LD3i64_POST,       "ld3",  ".d",     2, true,  24  },
407  { AArch64::LD3Rv16b,          "ld3r", ".16b",   0, false, 0  },
408  { AArch64::LD3Rv8h,           "ld3r", ".8h",    0, false, 0  },
409  { AArch64::LD3Rv4s,           "ld3r", ".4s",    0, false, 0  },
410  { AArch64::LD3Rv2d,           "ld3r", ".2d",    0, false, 0  },
411  { AArch64::LD3Rv8b,           "ld3r", ".8b",    0, false, 0  },
412  { AArch64::LD3Rv4h,           "ld3r", ".4h",    0, false, 0  },
413  { AArch64::LD3Rv2s,           "ld3r", ".2s",    0, false, 0  },
414  { AArch64::LD3Rv1d,           "ld3r", ".1d",    0, false, 0  },
415  { AArch64::LD3Rv16b_POST,     "ld3r", ".16b",   1, false, 3  },
416  { AArch64::LD3Rv8h_POST,      "ld3r", ".8h",    1, false, 6  },
417  { AArch64::LD3Rv4s_POST,      "ld3r", ".4s",    1, false, 12 },
418  { AArch64::LD3Rv2d_POST,      "ld3r", ".2d",    1, false, 24 },
419  { AArch64::LD3Rv8b_POST,      "ld3r", ".8b",    1, false, 3  },
420  { AArch64::LD3Rv4h_POST,      "ld3r", ".4h",    1, false, 6  },
421  { AArch64::LD3Rv2s_POST,      "ld3r", ".2s",    1, false, 12 },
422  { AArch64::LD3Rv1d_POST,      "ld3r", ".1d",    1, false, 24 },
423  { AArch64::LD3Threev16b,      "ld3",  ".16b",   0, false, 0  },
424  { AArch64::LD3Threev8h,       "ld3",  ".8h",    0, false, 0  },
425  { AArch64::LD3Threev4s,       "ld3",  ".4s",    0, false, 0  },
426  { AArch64::LD3Threev2d,       "ld3",  ".2d",    0, false, 0  },
427  { AArch64::LD3Threev8b,       "ld3",  ".8b",    0, false, 0  },
428  { AArch64::LD3Threev4h,       "ld3",  ".4h",    0, false, 0  },
429  { AArch64::LD3Threev2s,       "ld3",  ".2s",    0, false, 0  },
430  { AArch64::LD3Threev16b_POST, "ld3",  ".16b",   1, false, 48 },
431  { AArch64::LD3Threev8h_POST,  "ld3",  ".8h",    1, false, 48 },
432  { AArch64::LD3Threev4s_POST,  "ld3",  ".4s",    1, false, 48 },
433  { AArch64::LD3Threev2d_POST,  "ld3",  ".2d",    1, false, 48 },
434  { AArch64::LD3Threev8b_POST,  "ld3",  ".8b",    1, false, 24 },
435  { AArch64::LD3Threev4h_POST,  "ld3",  ".4h",    1, false, 24 },
436  { AArch64::LD3Threev2s_POST,  "ld3",  ".2s",    1, false, 24 },
437  { AArch64::LD4i8,             "ld4",  ".b",     1, true,  0  },
438  { AArch64::LD4i16,            "ld4",  ".h",     1, true,  0  },
439  { AArch64::LD4i32,            "ld4",  ".s",     1, true,  0  },
440  { AArch64::LD4i64,            "ld4",  ".d",     1, true,  0  },
441  { AArch64::LD4i8_POST,        "ld4",  ".b",     2, true,  4  },
442  { AArch64::LD4i16_POST,       "ld4",  ".h",     2, true,  8  },
443  { AArch64::LD4i32_POST,       "ld4",  ".s",     2, true,  16 },
444  { AArch64::LD4i64_POST,       "ld4",  ".d",     2, true,  32 },
445  { AArch64::LD4Rv16b,          "ld4r", ".16b",   0, false, 0  },
446  { AArch64::LD4Rv8h,           "ld4r", ".8h",    0, false, 0  },
447  { AArch64::LD4Rv4s,           "ld4r", ".4s",    0, false, 0  },
448  { AArch64::LD4Rv2d,           "ld4r", ".2d",    0, false, 0  },
449  { AArch64::LD4Rv8b,           "ld4r", ".8b",    0, false, 0  },
450  { AArch64::LD4Rv4h,           "ld4r", ".4h",    0, false, 0  },
451  { AArch64::LD4Rv2s,           "ld4r", ".2s",    0, false, 0  },
452  { AArch64::LD4Rv1d,           "ld4r", ".1d",    0, false, 0  },
453  { AArch64::LD4Rv16b_POST,     "ld4r", ".16b",   1, false, 4  },
454  { AArch64::LD4Rv8h_POST,      "ld4r", ".8h",    1, false, 8  },
455  { AArch64::LD4Rv4s_POST,      "ld4r", ".4s",    1, false, 16 },
456  { AArch64::LD4Rv2d_POST,      "ld4r", ".2d",    1, false, 32 },
457  { AArch64::LD4Rv8b_POST,      "ld4r", ".8b",    1, false, 4  },
458  { AArch64::LD4Rv4h_POST,      "ld4r", ".4h",    1, false, 8  },
459  { AArch64::LD4Rv2s_POST,      "ld4r", ".2s",    1, false, 16 },
460  { AArch64::LD4Rv1d_POST,      "ld4r", ".1d",    1, false, 32 },
461  { AArch64::LD4Fourv16b,       "ld4",  ".16b",   0, false, 0  },
462  { AArch64::LD4Fourv8h,        "ld4",  ".8h",    0, false, 0  },
463  { AArch64::LD4Fourv4s,        "ld4",  ".4s",    0, false, 0  },
464  { AArch64::LD4Fourv2d,        "ld4",  ".2d",    0, false, 0  },
465  { AArch64::LD4Fourv8b,        "ld4",  ".8b",    0, false, 0  },
466  { AArch64::LD4Fourv4h,        "ld4",  ".4h",    0, false, 0  },
467  { AArch64::LD4Fourv2s,        "ld4",  ".2s",    0, false, 0  },
468  { AArch64::LD4Fourv16b_POST,  "ld4",  ".16b",   1, false, 64 },
469  { AArch64::LD4Fourv8h_POST,   "ld4",  ".8h",    1, false, 64 },
470  { AArch64::LD4Fourv4s_POST,   "ld4",  ".4s",    1, false, 64 },
471  { AArch64::LD4Fourv2d_POST,   "ld4",  ".2d",    1, false, 64 },
472  { AArch64::LD4Fourv8b_POST,   "ld4",  ".8b",    1, false, 32 },
473  { AArch64::LD4Fourv4h_POST,   "ld4",  ".4h",    1, false, 32 },
474  { AArch64::LD4Fourv2s_POST,   "ld4",  ".2s",    1, false, 32 },
475  { AArch64::ST1i8,             "st1",  ".b",     0, true,  0  },
476  { AArch64::ST1i16,            "st1",  ".h",     0, true,  0  },
477  { AArch64::ST1i32,            "st1",  ".s",     0, true,  0  },
478  { AArch64::ST1i64,            "st1",  ".d",     0, true,  0  },
479  { AArch64::ST1i8_POST,        "st1",  ".b",     1, true,  1  },
480  { AArch64::ST1i16_POST,       "st1",  ".h",     1, true,  2  },
481  { AArch64::ST1i32_POST,       "st1",  ".s",     1, true,  4  },
482  { AArch64::ST1i64_POST,       "st1",  ".d",     1, true,  8  },
483  { AArch64::ST1Onev16b,        "st1",  ".16b",   0, false, 0  },
484  { AArch64::ST1Onev8h,         "st1",  ".8h",    0, false, 0  },
485  { AArch64::ST1Onev4s,         "st1",  ".4s",    0, false, 0  },
486  { AArch64::ST1Onev2d,         "st1",  ".2d",    0, false, 0  },
487  { AArch64::ST1Onev8b,         "st1",  ".8b",    0, false, 0  },
488  { AArch64::ST1Onev4h,         "st1",  ".4h",    0, false, 0  },
489  { AArch64::ST1Onev2s,         "st1",  ".2s",    0, false, 0  },
490  { AArch64::ST1Onev1d,         "st1",  ".1d",    0, false, 0  },
491  { AArch64::ST1Onev16b_POST,   "st1",  ".16b",   1, false, 16 },
492  { AArch64::ST1Onev8h_POST,    "st1",  ".8h",    1, false, 16 },
493  { AArch64::ST1Onev4s_POST,    "st1",  ".4s",    1, false, 16 },
494  { AArch64::ST1Onev2d_POST,    "st1",  ".2d",    1, false, 16 },
495  { AArch64::ST1Onev8b_POST,    "st1",  ".8b",    1, false, 8  },
496  { AArch64::ST1Onev4h_POST,    "st1",  ".4h",    1, false, 8  },
497  { AArch64::ST1Onev2s_POST,    "st1",  ".2s",    1, false, 8  },
498  { AArch64::ST1Onev1d_POST,    "st1",  ".1d",    1, false, 8  },
499  { AArch64::ST1Twov16b,        "st1",  ".16b",   0, false, 0  },
500  { AArch64::ST1Twov8h,         "st1",  ".8h",    0, false, 0  },
501  { AArch64::ST1Twov4s,         "st1",  ".4s",    0, false, 0  },
502  { AArch64::ST1Twov2d,         "st1",  ".2d",    0, false, 0  },
503  { AArch64::ST1Twov8b,         "st1",  ".8b",    0, false, 0  },
504  { AArch64::ST1Twov4h,         "st1",  ".4h",    0, false, 0  },
505  { AArch64::ST1Twov2s,         "st1",  ".2s",    0, false, 0  },
506  { AArch64::ST1Twov1d,         "st1",  ".1d",    0, false, 0  },
507  { AArch64::ST1Twov16b_POST,   "st1",  ".16b",   1, false, 32 },
508  { AArch64::ST1Twov8h_POST,    "st1",  ".8h",    1, false, 32 },
509  { AArch64::ST1Twov4s_POST,    "st1",  ".4s",    1, false, 32 },
510  { AArch64::ST1Twov2d_POST,    "st1",  ".2d",    1, false, 32 },
511  { AArch64::ST1Twov8b_POST,    "st1",  ".8b",    1, false, 16 },
512  { AArch64::ST1Twov4h_POST,    "st1",  ".4h",    1, false, 16 },
513  { AArch64::ST1Twov2s_POST,    "st1",  ".2s",    1, false, 16 },
514  { AArch64::ST1Twov1d_POST,    "st1",  ".1d",    1, false, 16 },
515  { AArch64::ST1Threev16b,      "st1",  ".16b",   0, false, 0  },
516  { AArch64::ST1Threev8h,       "st1",  ".8h",    0, false, 0  },
517  { AArch64::ST1Threev4s,       "st1",  ".4s",    0, false, 0  },
518  { AArch64::ST1Threev2d,       "st1",  ".2d",    0, false, 0  },
519  { AArch64::ST1Threev8b,       "st1",  ".8b",    0, false, 0  },
520  { AArch64::ST1Threev4h,       "st1",  ".4h",    0, false, 0  },
521  { AArch64::ST1Threev2s,       "st1",  ".2s",    0, false, 0  },
522  { AArch64::ST1Threev1d,       "st1",  ".1d",    0, false, 0  },
523  { AArch64::ST1Threev16b_POST, "st1",  ".16b",   1, false, 48 },
524  { AArch64::ST1Threev8h_POST,  "st1",  ".8h",    1, false, 48 },
525  { AArch64::ST1Threev4s_POST,  "st1",  ".4s",    1, false, 48 },
526  { AArch64::ST1Threev2d_POST,  "st1",  ".2d",    1, false, 48 },
527  { AArch64::ST1Threev8b_POST,  "st1",  ".8b",    1, false, 24 },
528  { AArch64::ST1Threev4h_POST,  "st1",  ".4h",    1, false, 24 },
529  { AArch64::ST1Threev2s_POST,  "st1",  ".2s",    1, false, 24 },
530  { AArch64::ST1Threev1d_POST,  "st1",  ".1d",    1, false, 24 },
531  { AArch64::ST1Fourv16b,       "st1",  ".16b",   0, false, 0  },
532  { AArch64::ST1Fourv8h,        "st1",  ".8h",    0, false, 0  },
533  { AArch64::ST1Fourv4s,        "st1",  ".4s",    0, false, 0  },
534  { AArch64::ST1Fourv2d,        "st1",  ".2d",    0, false, 0  },
535  { AArch64::ST1Fourv8b,        "st1",  ".8b",    0, false, 0  },
536  { AArch64::ST1Fourv4h,        "st1",  ".4h",    0, false, 0  },
537  { AArch64::ST1Fourv2s,        "st1",  ".2s",    0, false, 0  },
538  { AArch64::ST1Fourv1d,        "st1",  ".1d",    0, false, 0  },
539  { AArch64::ST1Fourv16b_POST,  "st1",  ".16b",   1, false, 64 },
540  { AArch64::ST1Fourv8h_POST,   "st1",  ".8h",    1, false, 64 },
541  { AArch64::ST1Fourv4s_POST,   "st1",  ".4s",    1, false, 64 },
542  { AArch64::ST1Fourv2d_POST,   "st1",  ".2d",    1, false, 64 },
543  { AArch64::ST1Fourv8b_POST,   "st1",  ".8b",    1, false, 32 },
544  { AArch64::ST1Fourv4h_POST,   "st1",  ".4h",    1, false, 32 },
545  { AArch64::ST1Fourv2s_POST,   "st1",  ".2s",    1, false, 32 },
546  { AArch64::ST1Fourv1d_POST,   "st1",  ".1d",    1, false, 32 },
547  { AArch64::ST2i8,             "st2",  ".b",     0, true,  0  },
548  { AArch64::ST2i16,            "st2",  ".h",     0, true,  0  },
549  { AArch64::ST2i32,            "st2",  ".s",     0, true,  0  },
550  { AArch64::ST2i64,            "st2",  ".d",     0, true,  0  },
551  { AArch64::ST2i8_POST,        "st2",  ".b",     1, true,  2  },
552  { AArch64::ST2i16_POST,       "st2",  ".h",     1, true,  4  },
553  { AArch64::ST2i32_POST,       "st2",  ".s",     1, true,  8  },
554  { AArch64::ST2i64_POST,       "st2",  ".d",     1, true,  16 },
555  { AArch64::ST2Twov16b,        "st2",  ".16b",   0, false, 0  },
556  { AArch64::ST2Twov8h,         "st2",  ".8h",    0, false, 0  },
557  { AArch64::ST2Twov4s,         "st2",  ".4s",    0, false, 0  },
558  { AArch64::ST2Twov2d,         "st2",  ".2d",    0, false, 0  },
559  { AArch64::ST2Twov8b,         "st2",  ".8b",    0, false, 0  },
560  { AArch64::ST2Twov4h,         "st2",  ".4h",    0, false, 0  },
561  { AArch64::ST2Twov2s,         "st2",  ".2s",    0, false, 0  },
562  { AArch64::ST2Twov16b_POST,   "st2",  ".16b",   1, false, 32 },
563  { AArch64::ST2Twov8h_POST,    "st2",  ".8h",    1, false, 32 },
564  { AArch64::ST2Twov4s_POST,    "st2",  ".4s",    1, false, 32 },
565  { AArch64::ST2Twov2d_POST,    "st2",  ".2d",    1, false, 32 },
566  { AArch64::ST2Twov8b_POST,    "st2",  ".8b",    1, false, 16 },
567  { AArch64::ST2Twov4h_POST,    "st2",  ".4h",    1, false, 16 },
568  { AArch64::ST2Twov2s_POST,    "st2",  ".2s",    1, false, 16 },
569  { AArch64::ST3i8,             "st3",  ".b",     0, true,  0  },
570  { AArch64::ST3i16,            "st3",  ".h",     0, true,  0  },
571  { AArch64::ST3i32,            "st3",  ".s",     0, true,  0  },
572  { AArch64::ST3i64,            "st3",  ".d",     0, true,  0  },
573  { AArch64::ST3i8_POST,        "st3",  ".b",     1, true,  3  },
574  { AArch64::ST3i16_POST,       "st3",  ".h",     1, true,  6  },
575  { AArch64::ST3i32_POST,       "st3",  ".s",     1, true,  12 },
576  { AArch64::ST3i64_POST,       "st3",  ".d",     1, true,  24 },
577  { AArch64::ST3Threev16b,      "st3",  ".16b",   0, false, 0  },
578  { AArch64::ST3Threev8h,       "st3",  ".8h",    0, false, 0  },
579  { AArch64::ST3Threev4s,       "st3",  ".4s",    0, false, 0  },
580  { AArch64::ST3Threev2d,       "st3",  ".2d",    0, false, 0  },
581  { AArch64::ST3Threev8b,       "st3",  ".8b",    0, false, 0  },
582  { AArch64::ST3Threev4h,       "st3",  ".4h",    0, false, 0  },
583  { AArch64::ST3Threev2s,       "st3",  ".2s",    0, false, 0  },
584  { AArch64::ST3Threev16b_POST, "st3",  ".16b",   1, false, 48 },
585  { AArch64::ST3Threev8h_POST,  "st3",  ".8h",    1, false, 48 },
586  { AArch64::ST3Threev4s_POST,  "st3",  ".4s",    1, false, 48 },
587  { AArch64::ST3Threev2d_POST,  "st3",  ".2d",    1, false, 48 },
588  { AArch64::ST3Threev8b_POST,  "st3",  ".8b",    1, false, 24 },
589  { AArch64::ST3Threev4h_POST,  "st3",  ".4h",    1, false, 24 },
590  { AArch64::ST3Threev2s_POST,  "st3",  ".2s",    1, false, 24 },
591  { AArch64::ST4i8,             "st4",  ".b",     0, true,  0  },
592  { AArch64::ST4i16,            "st4",  ".h",     0, true,  0  },
593  { AArch64::ST4i32,            "st4",  ".s",     0, true,  0  },
594  { AArch64::ST4i64,            "st4",  ".d",     0, true,  0  },
595  { AArch64::ST4i8_POST,        "st4",  ".b",     1, true,  4  },
596  { AArch64::ST4i16_POST,       "st4",  ".h",     1, true,  8  },
597  { AArch64::ST4i32_POST,       "st4",  ".s",     1, true,  16 },
598  { AArch64::ST4i64_POST,       "st4",  ".d",     1, true,  32 },
599  { AArch64::ST4Fourv16b,       "st4",  ".16b",   0, false, 0  },
600  { AArch64::ST4Fourv8h,        "st4",  ".8h",    0, false, 0  },
601  { AArch64::ST4Fourv4s,        "st4",  ".4s",    0, false, 0  },
602  { AArch64::ST4Fourv2d,        "st4",  ".2d",    0, false, 0  },
603  { AArch64::ST4Fourv8b,        "st4",  ".8b",    0, false, 0  },
604  { AArch64::ST4Fourv4h,        "st4",  ".4h",    0, false, 0  },
605  { AArch64::ST4Fourv2s,        "st4",  ".2s",    0, false, 0  },
606  { AArch64::ST4Fourv16b_POST,  "st4",  ".16b",   1, false, 64 },
607  { AArch64::ST4Fourv8h_POST,   "st4",  ".8h",    1, false, 64 },
608  { AArch64::ST4Fourv4s_POST,   "st4",  ".4s",    1, false, 64 },
609  { AArch64::ST4Fourv2d_POST,   "st4",  ".2d",    1, false, 64 },
610  { AArch64::ST4Fourv8b_POST,   "st4",  ".8b",    1, false, 32 },
611  { AArch64::ST4Fourv4h_POST,   "st4",  ".4h",    1, false, 32 },
612  { AArch64::ST4Fourv2s_POST,   "st4",  ".2s",    1, false, 32 },
613};
614
615static const LdStNInstrDesc *getLdStNInstrDesc(unsigned Opcode) {
616  unsigned Idx;
617  for (Idx = 0; Idx != array_lengthof(LdStNInstInfo); ++Idx)
618    if (LdStNInstInfo[Idx].Opcode == Opcode)
619      return &LdStNInstInfo[Idx];
620
621  return nullptr;
622}
623
624void AArch64AppleInstPrinter::printInst(const MCInst *MI, raw_ostream &O,
625                                        StringRef Annot,
626                                        const MCSubtargetInfo &STI) {
627  unsigned Opcode = MI->getOpcode();
628  StringRef Layout, Mnemonic;
629
630  bool IsTbx;
631  if (isTblTbxInstruction(MI->getOpcode(), Layout, IsTbx)) {
632    O << "\t" << (IsTbx ? "tbx" : "tbl") << Layout << '\t'
633      << getRegisterName(MI->getOperand(0).getReg(), AArch64::vreg) << ", ";
634
635    unsigned ListOpNum = IsTbx ? 2 : 1;
636    printVectorList(MI, ListOpNum, STI, O, "");
637
638    O << ", "
639      << getRegisterName(MI->getOperand(ListOpNum + 1).getReg(), AArch64::vreg);
640    printAnnotation(O, Annot);
641    return;
642  }
643
644  if (const LdStNInstrDesc *LdStDesc = getLdStNInstrDesc(Opcode)) {
645    O << "\t" << LdStDesc->Mnemonic << LdStDesc->Layout << '\t';
646
647    // Now onto the operands: first a vector list with possible lane
648    // specifier. E.g. { v0 }[2]
649    int OpNum = LdStDesc->ListOperand;
650    printVectorList(MI, OpNum++, STI, O, "");
651
652    if (LdStDesc->HasLane)
653      O << '[' << MI->getOperand(OpNum++).getImm() << ']';
654
655    // Next the address: [xN]
656    unsigned AddrReg = MI->getOperand(OpNum++).getReg();
657    O << ", [" << getRegisterName(AddrReg) << ']';
658
659    // Finally, there might be a post-indexed offset.
660    if (LdStDesc->NaturalOffset != 0) {
661      unsigned Reg = MI->getOperand(OpNum++).getReg();
662      if (Reg != AArch64::XZR)
663        O << ", " << getRegisterName(Reg);
664      else {
665        assert(LdStDesc->NaturalOffset && "no offset on post-inc instruction?");
666        O << ", #" << LdStDesc->NaturalOffset;
667      }
668    }
669
670    printAnnotation(O, Annot);
671    return;
672  }
673
674  AArch64InstPrinter::printInst(MI, O, Annot, STI);
675}
676
677bool AArch64InstPrinter::printSysAlias(const MCInst *MI,
678                                       const MCSubtargetInfo &STI,
679                                       raw_ostream &O) {
680#ifndef NDEBUG
681  unsigned Opcode = MI->getOpcode();
682  assert(Opcode == AArch64::SYSxt && "Invalid opcode for SYS alias!");
683#endif
684
685  const char *Asm = nullptr;
686  const MCOperand &Op1 = MI->getOperand(0);
687  const MCOperand &Cn = MI->getOperand(1);
688  const MCOperand &Cm = MI->getOperand(2);
689  const MCOperand &Op2 = MI->getOperand(3);
690
691  unsigned Op1Val = Op1.getImm();
692  unsigned CnVal = Cn.getImm();
693  unsigned CmVal = Cm.getImm();
694  unsigned Op2Val = Op2.getImm();
695
696  if (CnVal == 7) {
697    switch (CmVal) {
698    default:
699      break;
700
701    // IC aliases
702    case 1:
703      if (Op1Val == 0 && Op2Val == 0)
704        Asm = "ic\tialluis";
705      break;
706    case 5:
707      if (Op1Val == 0 && Op2Val == 0)
708        Asm = "ic\tiallu";
709      else if (Op1Val == 3 && Op2Val == 1)
710        Asm = "ic\tivau";
711      break;
712
713    // DC aliases
714    case 4:
715      if (Op1Val == 3 && Op2Val == 1)
716        Asm = "dc\tzva";
717      break;
718    case 6:
719      if (Op1Val == 0 && Op2Val == 1)
720        Asm = "dc\tivac";
721      if (Op1Val == 0 && Op2Val == 2)
722        Asm = "dc\tisw";
723      break;
724    case 10:
725      if (Op1Val == 3 && Op2Val == 1)
726        Asm = "dc\tcvac";
727      else if (Op1Val == 0 && Op2Val == 2)
728        Asm = "dc\tcsw";
729      break;
730    case 11:
731      if (Op1Val == 3 && Op2Val == 1)
732        Asm = "dc\tcvau";
733      break;
734    case 12:
735      if (Op1Val == 3 && Op2Val == 1 &&
736          (STI.getFeatureBits()[AArch64::HasV8_2aOps]))
737        Asm = "dc\tcvap";
738      break;
739    case 14:
740      if (Op1Val == 3 && Op2Val == 1)
741        Asm = "dc\tcivac";
742      else if (Op1Val == 0 && Op2Val == 2)
743        Asm = "dc\tcisw";
744      break;
745
746    // AT aliases
747    case 8:
748      switch (Op1Val) {
749      default:
750        break;
751      case 0:
752        switch (Op2Val) {
753        default:
754          break;
755        case 0: Asm = "at\ts1e1r"; break;
756        case 1: Asm = "at\ts1e1w"; break;
757        case 2: Asm = "at\ts1e0r"; break;
758        case 3: Asm = "at\ts1e0w"; break;
759        }
760        break;
761      case 4:
762        switch (Op2Val) {
763        default:
764          break;
765        case 0: Asm = "at\ts1e2r"; break;
766        case 1: Asm = "at\ts1e2w"; break;
767        case 4: Asm = "at\ts12e1r"; break;
768        case 5: Asm = "at\ts12e1w"; break;
769        case 6: Asm = "at\ts12e0r"; break;
770        case 7: Asm = "at\ts12e0w"; break;
771        }
772        break;
773      case 6:
774        switch (Op2Val) {
775        default:
776          break;
777        case 0: Asm = "at\ts1e3r"; break;
778        case 1: Asm = "at\ts1e3w"; break;
779        }
780        break;
781      }
782      break;
783    case 9:
784      switch (Op1Val) {
785      default:
786        break;
787      case 0:
788        if (STI.getFeatureBits()[AArch64::HasV8_2aOps]) {
789          switch (Op2Val) {
790          default:
791            break;
792          case 0: Asm = "at\ts1e1rp"; break;
793          case 1: Asm = "at\ts1e1wp"; break;
794          }
795        }
796        break;
797      }
798    }
799  } else if (CnVal == 8) {
800    // TLBI aliases
801    switch (CmVal) {
802    default:
803      break;
804    case 3:
805      switch (Op1Val) {
806      default:
807        break;
808      case 0:
809        switch (Op2Val) {
810        default:
811          break;
812        case 0: Asm = "tlbi\tvmalle1is"; break;
813        case 1: Asm = "tlbi\tvae1is"; break;
814        case 2: Asm = "tlbi\taside1is"; break;
815        case 3: Asm = "tlbi\tvaae1is"; break;
816        case 5: Asm = "tlbi\tvale1is"; break;
817        case 7: Asm = "tlbi\tvaale1is"; break;
818        }
819        break;
820      case 4:
821        switch (Op2Val) {
822        default:
823          break;
824        case 0: Asm = "tlbi\talle2is"; break;
825        case 1: Asm = "tlbi\tvae2is"; break;
826        case 4: Asm = "tlbi\talle1is"; break;
827        case 5: Asm = "tlbi\tvale2is"; break;
828        case 6: Asm = "tlbi\tvmalls12e1is"; break;
829        }
830        break;
831      case 6:
832        switch (Op2Val) {
833        default:
834          break;
835        case 0: Asm = "tlbi\talle3is"; break;
836        case 1: Asm = "tlbi\tvae3is"; break;
837        case 5: Asm = "tlbi\tvale3is"; break;
838        }
839        break;
840      }
841      break;
842    case 0:
843      switch (Op1Val) {
844      default:
845        break;
846      case 4:
847        switch (Op2Val) {
848        default:
849          break;
850        case 1: Asm = "tlbi\tipas2e1is"; break;
851        case 5: Asm = "tlbi\tipas2le1is"; break;
852        }
853        break;
854      }
855      break;
856    case 4:
857      switch (Op1Val) {
858      default:
859        break;
860      case 4:
861        switch (Op2Val) {
862        default:
863          break;
864        case 1: Asm = "tlbi\tipas2e1"; break;
865        case 5: Asm = "tlbi\tipas2le1"; break;
866        }
867        break;
868      }
869      break;
870    case 7:
871      switch (Op1Val) {
872      default:
873        break;
874      case 0:
875        switch (Op2Val) {
876        default:
877          break;
878        case 0: Asm = "tlbi\tvmalle1"; break;
879        case 1: Asm = "tlbi\tvae1"; break;
880        case 2: Asm = "tlbi\taside1"; break;
881        case 3: Asm = "tlbi\tvaae1"; break;
882        case 5: Asm = "tlbi\tvale1"; break;
883        case 7: Asm = "tlbi\tvaale1"; break;
884        }
885        break;
886      case 4:
887        switch (Op2Val) {
888        default:
889          break;
890        case 0: Asm = "tlbi\talle2"; break;
891        case 1: Asm = "tlbi\tvae2"; break;
892        case 4: Asm = "tlbi\talle1"; break;
893        case 5: Asm = "tlbi\tvale2"; break;
894        case 6: Asm = "tlbi\tvmalls12e1"; break;
895        }
896        break;
897      case 6:
898        switch (Op2Val) {
899        default:
900          break;
901        case 0: Asm = "tlbi\talle3"; break;
902        case 1: Asm = "tlbi\tvae3";  break;
903        case 5: Asm = "tlbi\tvale3"; break;
904        }
905        break;
906      }
907      break;
908    }
909  }
910
911  if (Asm) {
912    unsigned Reg = MI->getOperand(4).getReg();
913
914    O << '\t' << Asm;
915    if (StringRef(Asm).lower().find("all") == StringRef::npos)
916      O << ", " << getRegisterName(Reg);
917  }
918
919  return Asm != nullptr;
920}
921
922void AArch64InstPrinter::printOperand(const MCInst *MI, unsigned OpNo,
923                                      const MCSubtargetInfo &STI,
924                                      raw_ostream &O) {
925  const MCOperand &Op = MI->getOperand(OpNo);
926  if (Op.isReg()) {
927    unsigned Reg = Op.getReg();
928    O << getRegisterName(Reg);
929  } else if (Op.isImm()) {
930    O << '#' << Op.getImm();
931  } else {
932    assert(Op.isExpr() && "unknown operand kind in printOperand");
933    Op.getExpr()->print(O, &MAI);
934  }
935}
936
937void AArch64InstPrinter::printHexImm(const MCInst *MI, unsigned OpNo,
938                                     const MCSubtargetInfo &STI,
939                                     raw_ostream &O) {
940  const MCOperand &Op = MI->getOperand(OpNo);
941  O << format("#%#llx", Op.getImm());
942}
943
944void AArch64InstPrinter::printPostIncOperand(const MCInst *MI, unsigned OpNo,
945                                             unsigned Imm, raw_ostream &O) {
946  const MCOperand &Op = MI->getOperand(OpNo);
947  if (Op.isReg()) {
948    unsigned Reg = Op.getReg();
949    if (Reg == AArch64::XZR)
950      O << "#" << Imm;
951    else
952      O << getRegisterName(Reg);
953  } else
954    llvm_unreachable("unknown operand kind in printPostIncOperand64");
955}
956
957void AArch64InstPrinter::printVRegOperand(const MCInst *MI, unsigned OpNo,
958                                          const MCSubtargetInfo &STI,
959                                          raw_ostream &O) {
960  const MCOperand &Op = MI->getOperand(OpNo);
961  assert(Op.isReg() && "Non-register vreg operand!");
962  unsigned Reg = Op.getReg();
963  O << getRegisterName(Reg, AArch64::vreg);
964}
965
966void AArch64InstPrinter::printSysCROperand(const MCInst *MI, unsigned OpNo,
967                                           const MCSubtargetInfo &STI,
968                                           raw_ostream &O) {
969  const MCOperand &Op = MI->getOperand(OpNo);
970  assert(Op.isImm() && "System instruction C[nm] operands must be immediates!");
971  O << "c" << Op.getImm();
972}
973
974void AArch64InstPrinter::printAddSubImm(const MCInst *MI, unsigned OpNum,
975                                        const MCSubtargetInfo &STI,
976                                        raw_ostream &O) {
977  const MCOperand &MO = MI->getOperand(OpNum);
978  if (MO.isImm()) {
979    unsigned Val = (MO.getImm() & 0xfff);
980    assert(Val == MO.getImm() && "Add/sub immediate out of range!");
981    unsigned Shift =
982        AArch64_AM::getShiftValue(MI->getOperand(OpNum + 1).getImm());
983    O << '#' << Val;
984    if (Shift != 0)
985      printShifter(MI, OpNum + 1, STI, O);
986
987    if (CommentStream)
988      *CommentStream << '=' << (Val << Shift) << '\n';
989  } else {
990    assert(MO.isExpr() && "Unexpected operand type!");
991    MO.getExpr()->print(O, &MAI);
992    printShifter(MI, OpNum + 1, STI, O);
993  }
994}
995
996void AArch64InstPrinter::printLogicalImm32(const MCInst *MI, unsigned OpNum,
997                                           const MCSubtargetInfo &STI,
998                                           raw_ostream &O) {
999  uint64_t Val = MI->getOperand(OpNum).getImm();
1000  O << "#0x";
1001  O.write_hex(AArch64_AM::decodeLogicalImmediate(Val, 32));
1002}
1003
1004void AArch64InstPrinter::printLogicalImm64(const MCInst *MI, unsigned OpNum,
1005                                           const MCSubtargetInfo &STI,
1006                                           raw_ostream &O) {
1007  uint64_t Val = MI->getOperand(OpNum).getImm();
1008  O << "#0x";
1009  O.write_hex(AArch64_AM::decodeLogicalImmediate(Val, 64));
1010}
1011
1012void AArch64InstPrinter::printShifter(const MCInst *MI, unsigned OpNum,
1013                                      const MCSubtargetInfo &STI,
1014                                      raw_ostream &O) {
1015  unsigned Val = MI->getOperand(OpNum).getImm();
1016  // LSL #0 should not be printed.
1017  if (AArch64_AM::getShiftType(Val) == AArch64_AM::LSL &&
1018      AArch64_AM::getShiftValue(Val) == 0)
1019    return;
1020  O << ", " << AArch64_AM::getShiftExtendName(AArch64_AM::getShiftType(Val))
1021    << " #" << AArch64_AM::getShiftValue(Val);
1022}
1023
1024void AArch64InstPrinter::printShiftedRegister(const MCInst *MI, unsigned OpNum,
1025                                              const MCSubtargetInfo &STI,
1026                                              raw_ostream &O) {
1027  O << getRegisterName(MI->getOperand(OpNum).getReg());
1028  printShifter(MI, OpNum + 1, STI, O);
1029}
1030
1031void AArch64InstPrinter::printExtendedRegister(const MCInst *MI, unsigned OpNum,
1032                                               const MCSubtargetInfo &STI,
1033                                               raw_ostream &O) {
1034  O << getRegisterName(MI->getOperand(OpNum).getReg());
1035  printArithExtend(MI, OpNum + 1, STI, O);
1036}
1037
1038void AArch64InstPrinter::printArithExtend(const MCInst *MI, unsigned OpNum,
1039                                          const MCSubtargetInfo &STI,
1040                                          raw_ostream &O) {
1041  unsigned Val = MI->getOperand(OpNum).getImm();
1042  AArch64_AM::ShiftExtendType ExtType = AArch64_AM::getArithExtendType(Val);
1043  unsigned ShiftVal = AArch64_AM::getArithShiftValue(Val);
1044
1045  // If the destination or first source register operand is [W]SP, print
1046  // UXTW/UXTX as LSL, and if the shift amount is also zero, print nothing at
1047  // all.
1048  if (ExtType == AArch64_AM::UXTW || ExtType == AArch64_AM::UXTX) {
1049    unsigned Dest = MI->getOperand(0).getReg();
1050    unsigned Src1 = MI->getOperand(1).getReg();
1051    if ( ((Dest == AArch64::SP || Src1 == AArch64::SP) &&
1052          ExtType == AArch64_AM::UXTX) ||
1053         ((Dest == AArch64::WSP || Src1 == AArch64::WSP) &&
1054          ExtType == AArch64_AM::UXTW) ) {
1055      if (ShiftVal != 0)
1056        O << ", lsl #" << ShiftVal;
1057      return;
1058    }
1059  }
1060  O << ", " << AArch64_AM::getShiftExtendName(ExtType);
1061  if (ShiftVal != 0)
1062    O << " #" << ShiftVal;
1063}
1064
1065void AArch64InstPrinter::printMemExtend(const MCInst *MI, unsigned OpNum,
1066                                        raw_ostream &O, char SrcRegKind,
1067                                        unsigned Width) {
1068  unsigned SignExtend = MI->getOperand(OpNum).getImm();
1069  unsigned DoShift = MI->getOperand(OpNum + 1).getImm();
1070
1071  // sxtw, sxtx, uxtw or lsl (== uxtx)
1072  bool IsLSL = !SignExtend && SrcRegKind == 'x';
1073  if (IsLSL)
1074    O << "lsl";
1075  else
1076    O << (SignExtend ? 's' : 'u') << "xt" << SrcRegKind;
1077
1078  if (DoShift || IsLSL)
1079    O << " #" << Log2_32(Width / 8);
1080}
1081
1082void AArch64InstPrinter::printCondCode(const MCInst *MI, unsigned OpNum,
1083                                       const MCSubtargetInfo &STI,
1084                                       raw_ostream &O) {
1085  AArch64CC::CondCode CC = (AArch64CC::CondCode)MI->getOperand(OpNum).getImm();
1086  O << AArch64CC::getCondCodeName(CC);
1087}
1088
1089void AArch64InstPrinter::printInverseCondCode(const MCInst *MI, unsigned OpNum,
1090                                              const MCSubtargetInfo &STI,
1091                                              raw_ostream &O) {
1092  AArch64CC::CondCode CC = (AArch64CC::CondCode)MI->getOperand(OpNum).getImm();
1093  O << AArch64CC::getCondCodeName(AArch64CC::getInvertedCondCode(CC));
1094}
1095
1096void AArch64InstPrinter::printAMNoIndex(const MCInst *MI, unsigned OpNum,
1097                                        const MCSubtargetInfo &STI,
1098                                        raw_ostream &O) {
1099  O << '[' << getRegisterName(MI->getOperand(OpNum).getReg()) << ']';
1100}
1101
1102template<int Scale>
1103void AArch64InstPrinter::printImmScale(const MCInst *MI, unsigned OpNum,
1104                                       const MCSubtargetInfo &STI,
1105                                       raw_ostream &O) {
1106  O << '#' << Scale * MI->getOperand(OpNum).getImm();
1107}
1108
1109void AArch64InstPrinter::printUImm12Offset(const MCInst *MI, unsigned OpNum,
1110                                           unsigned Scale, raw_ostream &O) {
1111  const MCOperand MO = MI->getOperand(OpNum);
1112  if (MO.isImm()) {
1113    O << "#" << (MO.getImm() * Scale);
1114  } else {
1115    assert(MO.isExpr() && "Unexpected operand type!");
1116    MO.getExpr()->print(O, &MAI);
1117  }
1118}
1119
1120void AArch64InstPrinter::printAMIndexedWB(const MCInst *MI, unsigned OpNum,
1121                                          unsigned Scale, raw_ostream &O) {
1122  const MCOperand MO1 = MI->getOperand(OpNum + 1);
1123  O << '[' << getRegisterName(MI->getOperand(OpNum).getReg());
1124  if (MO1.isImm()) {
1125      O << ", #" << (MO1.getImm() * Scale);
1126  } else {
1127    assert(MO1.isExpr() && "Unexpected operand type!");
1128    O << ", ";
1129    MO1.getExpr()->print(O, &MAI);
1130  }
1131  O << ']';
1132}
1133
1134void AArch64InstPrinter::printPrefetchOp(const MCInst *MI, unsigned OpNum,
1135                                         const MCSubtargetInfo &STI,
1136                                         raw_ostream &O) {
1137  unsigned prfop = MI->getOperand(OpNum).getImm();
1138  bool Valid;
1139  StringRef Name =
1140      AArch64PRFM::PRFMMapper().toString(prfop, STI.getFeatureBits(), Valid);
1141  if (Valid)
1142    O << Name;
1143  else
1144    O << '#' << prfop;
1145}
1146
1147void AArch64InstPrinter::printPSBHintOp(const MCInst *MI, unsigned OpNum,
1148                                        const MCSubtargetInfo &STI,
1149                                        raw_ostream &O) {
1150  unsigned psbhintop = MI->getOperand(OpNum).getImm();
1151  bool Valid;
1152  StringRef Name =
1153      AArch64PSBHint::PSBHintMapper().toString(psbhintop, STI.getFeatureBits(), Valid);
1154  if (Valid)
1155    O << Name;
1156  else
1157    O << '#' << psbhintop;
1158}
1159
1160void AArch64InstPrinter::printFPImmOperand(const MCInst *MI, unsigned OpNum,
1161                                           const MCSubtargetInfo &STI,
1162                                           raw_ostream &O) {
1163  const MCOperand &MO = MI->getOperand(OpNum);
1164  float FPImm =
1165      MO.isFPImm() ? MO.getFPImm() : AArch64_AM::getFPImmFloat(MO.getImm());
1166
1167  // 8 decimal places are enough to perfectly represent permitted floats.
1168  O << format("#%.8f", FPImm);
1169}
1170
1171static unsigned getNextVectorRegister(unsigned Reg, unsigned Stride = 1) {
1172  while (Stride--) {
1173    switch (Reg) {
1174    default:
1175      llvm_unreachable("Vector register expected!");
1176    case AArch64::Q0:  Reg = AArch64::Q1;  break;
1177    case AArch64::Q1:  Reg = AArch64::Q2;  break;
1178    case AArch64::Q2:  Reg = AArch64::Q3;  break;
1179    case AArch64::Q3:  Reg = AArch64::Q4;  break;
1180    case AArch64::Q4:  Reg = AArch64::Q5;  break;
1181    case AArch64::Q5:  Reg = AArch64::Q6;  break;
1182    case AArch64::Q6:  Reg = AArch64::Q7;  break;
1183    case AArch64::Q7:  Reg = AArch64::Q8;  break;
1184    case AArch64::Q8:  Reg = AArch64::Q9;  break;
1185    case AArch64::Q9:  Reg = AArch64::Q10; break;
1186    case AArch64::Q10: Reg = AArch64::Q11; break;
1187    case AArch64::Q11: Reg = AArch64::Q12; break;
1188    case AArch64::Q12: Reg = AArch64::Q13; break;
1189    case AArch64::Q13: Reg = AArch64::Q14; break;
1190    case AArch64::Q14: Reg = AArch64::Q15; break;
1191    case AArch64::Q15: Reg = AArch64::Q16; break;
1192    case AArch64::Q16: Reg = AArch64::Q17; break;
1193    case AArch64::Q17: Reg = AArch64::Q18; break;
1194    case AArch64::Q18: Reg = AArch64::Q19; break;
1195    case AArch64::Q19: Reg = AArch64::Q20; break;
1196    case AArch64::Q20: Reg = AArch64::Q21; break;
1197    case AArch64::Q21: Reg = AArch64::Q22; break;
1198    case AArch64::Q22: Reg = AArch64::Q23; break;
1199    case AArch64::Q23: Reg = AArch64::Q24; break;
1200    case AArch64::Q24: Reg = AArch64::Q25; break;
1201    case AArch64::Q25: Reg = AArch64::Q26; break;
1202    case AArch64::Q26: Reg = AArch64::Q27; break;
1203    case AArch64::Q27: Reg = AArch64::Q28; break;
1204    case AArch64::Q28: Reg = AArch64::Q29; break;
1205    case AArch64::Q29: Reg = AArch64::Q30; break;
1206    case AArch64::Q30: Reg = AArch64::Q31; break;
1207    // Vector lists can wrap around.
1208    case AArch64::Q31:
1209      Reg = AArch64::Q0;
1210      break;
1211    }
1212  }
1213  return Reg;
1214}
1215
1216template<unsigned size>
1217void AArch64InstPrinter::printGPRSeqPairsClassOperand(const MCInst *MI,
1218                                                   unsigned OpNum,
1219                                                   const MCSubtargetInfo &STI,
1220                                                   raw_ostream &O) {
1221  static_assert(size == 64 || size == 32,
1222                "Template parameter must be either 32 or 64");
1223  unsigned Reg = MI->getOperand(OpNum).getReg();
1224
1225  unsigned Sube = (size == 32) ? AArch64::sube32 : AArch64::sube64;
1226  unsigned Subo = (size == 32) ? AArch64::subo32 : AArch64::subo64;
1227
1228  unsigned Even = MRI.getSubReg(Reg,  Sube);
1229  unsigned Odd = MRI.getSubReg(Reg,  Subo);
1230  O << getRegisterName(Even) << ", " << getRegisterName(Odd);
1231}
1232
1233void AArch64InstPrinter::printVectorList(const MCInst *MI, unsigned OpNum,
1234                                         const MCSubtargetInfo &STI,
1235                                         raw_ostream &O,
1236                                         StringRef LayoutSuffix) {
1237  unsigned Reg = MI->getOperand(OpNum).getReg();
1238
1239  O << "{ ";
1240
1241  // Work out how many registers there are in the list (if there is an actual
1242  // list).
1243  unsigned NumRegs = 1;
1244  if (MRI.getRegClass(AArch64::DDRegClassID).contains(Reg) ||
1245      MRI.getRegClass(AArch64::QQRegClassID).contains(Reg))
1246    NumRegs = 2;
1247  else if (MRI.getRegClass(AArch64::DDDRegClassID).contains(Reg) ||
1248           MRI.getRegClass(AArch64::QQQRegClassID).contains(Reg))
1249    NumRegs = 3;
1250  else if (MRI.getRegClass(AArch64::DDDDRegClassID).contains(Reg) ||
1251           MRI.getRegClass(AArch64::QQQQRegClassID).contains(Reg))
1252    NumRegs = 4;
1253
1254  // Now forget about the list and find out what the first register is.
1255  if (unsigned FirstReg = MRI.getSubReg(Reg, AArch64::dsub0))
1256    Reg = FirstReg;
1257  else if (unsigned FirstReg = MRI.getSubReg(Reg, AArch64::qsub0))
1258    Reg = FirstReg;
1259
1260  // If it's a D-reg, we need to promote it to the equivalent Q-reg before
1261  // printing (otherwise getRegisterName fails).
1262  if (MRI.getRegClass(AArch64::FPR64RegClassID).contains(Reg)) {
1263    const MCRegisterClass &FPR128RC =
1264        MRI.getRegClass(AArch64::FPR128RegClassID);
1265    Reg = MRI.getMatchingSuperReg(Reg, AArch64::dsub, &FPR128RC);
1266  }
1267
1268  for (unsigned i = 0; i < NumRegs; ++i, Reg = getNextVectorRegister(Reg)) {
1269    O << getRegisterName(Reg, AArch64::vreg) << LayoutSuffix;
1270    if (i + 1 != NumRegs)
1271      O << ", ";
1272  }
1273
1274  O << " }";
1275}
1276
1277void
1278AArch64InstPrinter::printImplicitlyTypedVectorList(const MCInst *MI,
1279                                                   unsigned OpNum,
1280                                                   const MCSubtargetInfo &STI,
1281                                                   raw_ostream &O) {
1282  printVectorList(MI, OpNum, STI, O, "");
1283}
1284
1285template <unsigned NumLanes, char LaneKind>
1286void AArch64InstPrinter::printTypedVectorList(const MCInst *MI, unsigned OpNum,
1287                                              const MCSubtargetInfo &STI,
1288                                              raw_ostream &O) {
1289  std::string Suffix(".");
1290  if (NumLanes)
1291    Suffix += itostr(NumLanes) + LaneKind;
1292  else
1293    Suffix += LaneKind;
1294
1295  printVectorList(MI, OpNum, STI, O, Suffix);
1296}
1297
1298void AArch64InstPrinter::printVectorIndex(const MCInst *MI, unsigned OpNum,
1299                                          const MCSubtargetInfo &STI,
1300                                          raw_ostream &O) {
1301  O << "[" << MI->getOperand(OpNum).getImm() << "]";
1302}
1303
1304void AArch64InstPrinter::printAlignedLabel(const MCInst *MI, unsigned OpNum,
1305                                           const MCSubtargetInfo &STI,
1306                                           raw_ostream &O) {
1307  const MCOperand &Op = MI->getOperand(OpNum);
1308
1309  // If the label has already been resolved to an immediate offset (say, when
1310  // we're running the disassembler), just print the immediate.
1311  if (Op.isImm()) {
1312    O << "#" << (Op.getImm() * 4);
1313    return;
1314  }
1315
1316  // If the branch target is simply an address then print it in hex.
1317  const MCConstantExpr *BranchTarget =
1318      dyn_cast<MCConstantExpr>(MI->getOperand(OpNum).getExpr());
1319  int64_t Address;
1320  if (BranchTarget && BranchTarget->evaluateAsAbsolute(Address)) {
1321    O << "0x";
1322    O.write_hex(Address);
1323  } else {
1324    // Otherwise, just print the expression.
1325    MI->getOperand(OpNum).getExpr()->print(O, &MAI);
1326  }
1327}
1328
1329void AArch64InstPrinter::printAdrpLabel(const MCInst *MI, unsigned OpNum,
1330                                        const MCSubtargetInfo &STI,
1331                                        raw_ostream &O) {
1332  const MCOperand &Op = MI->getOperand(OpNum);
1333
1334  // If the label has already been resolved to an immediate offset (say, when
1335  // we're running the disassembler), just print the immediate.
1336  if (Op.isImm()) {
1337    O << "#" << (Op.getImm() * (1 << 12));
1338    return;
1339  }
1340
1341  // Otherwise, just print the expression.
1342  MI->getOperand(OpNum).getExpr()->print(O, &MAI);
1343}
1344
1345void AArch64InstPrinter::printBarrierOption(const MCInst *MI, unsigned OpNo,
1346                                            const MCSubtargetInfo &STI,
1347                                            raw_ostream &O) {
1348  unsigned Val = MI->getOperand(OpNo).getImm();
1349  unsigned Opcode = MI->getOpcode();
1350
1351  bool Valid;
1352  StringRef Name;
1353  if (Opcode == AArch64::ISB)
1354    Name = AArch64ISB::ISBMapper().toString(Val, STI.getFeatureBits(),
1355                                            Valid);
1356  else
1357    Name = AArch64DB::DBarrierMapper().toString(Val, STI.getFeatureBits(),
1358                                                Valid);
1359  if (Valid)
1360    O << Name;
1361  else
1362    O << "#" << Val;
1363}
1364
1365void AArch64InstPrinter::printMRSSystemRegister(const MCInst *MI, unsigned OpNo,
1366                                                const MCSubtargetInfo &STI,
1367                                                raw_ostream &O) {
1368  unsigned Val = MI->getOperand(OpNo).getImm();
1369
1370  auto Mapper = AArch64SysReg::MRSMapper();
1371  std::string Name = Mapper.toString(Val, STI.getFeatureBits());
1372
1373  O << StringRef(Name).upper();
1374}
1375
1376void AArch64InstPrinter::printMSRSystemRegister(const MCInst *MI, unsigned OpNo,
1377                                                const MCSubtargetInfo &STI,
1378                                                raw_ostream &O) {
1379  unsigned Val = MI->getOperand(OpNo).getImm();
1380
1381  auto Mapper = AArch64SysReg::MSRMapper();
1382  std::string Name = Mapper.toString(Val, STI.getFeatureBits());
1383
1384  O << StringRef(Name).upper();
1385}
1386
1387void AArch64InstPrinter::printSystemPStateField(const MCInst *MI, unsigned OpNo,
1388                                                const MCSubtargetInfo &STI,
1389                                                raw_ostream &O) {
1390  unsigned Val = MI->getOperand(OpNo).getImm();
1391
1392  bool Valid;
1393  StringRef Name =
1394      AArch64PState::PStateMapper().toString(Val, STI.getFeatureBits(), Valid);
1395  if (Valid)
1396    O << Name.upper();
1397  else
1398    O << "#" << Val;
1399}
1400
1401void AArch64InstPrinter::printSIMDType10Operand(const MCInst *MI, unsigned OpNo,
1402                                                const MCSubtargetInfo &STI,
1403                                                raw_ostream &O) {
1404  unsigned RawVal = MI->getOperand(OpNo).getImm();
1405  uint64_t Val = AArch64_AM::decodeAdvSIMDModImmType10(RawVal);
1406  O << format("#%#016llx", Val);
1407}
1408