1 //==-- AArch64InstPrinter.cpp - Convert AArch64 MCInst to assembly syntax --==// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 // 9 // This class prints an AArch64 MCInst to a .s file. 10 // 11 //===----------------------------------------------------------------------===// 12 13 #include "AArch64InstPrinter.h" 14 #include "MCTargetDesc/AArch64AddressingModes.h" 15 #include "Utils/AArch64BaseInfo.h" 16 #include "llvm/ADT/STLExtras.h" 17 #include "llvm/ADT/StringExtras.h" 18 #include "llvm/ADT/StringRef.h" 19 #include "llvm/MC/MCAsmInfo.h" 20 #include "llvm/MC/MCExpr.h" 21 #include "llvm/MC/MCInst.h" 22 #include "llvm/MC/MCRegisterInfo.h" 23 #include "llvm/MC/MCSubtargetInfo.h" 24 #include "llvm/Support/Casting.h" 25 #include "llvm/Support/ErrorHandling.h" 26 #include "llvm/Support/Format.h" 27 #include "llvm/Support/MathExtras.h" 28 #include "llvm/Support/raw_ostream.h" 29 #include <cassert> 30 #include <cstdint> 31 #include <string> 32 33 using namespace llvm; 34 35 #define DEBUG_TYPE "asm-printer" 36 37 #define GET_INSTRUCTION_NAME 38 #define PRINT_ALIAS_INSTR 39 #include "AArch64GenAsmWriter.inc" 40 #define GET_INSTRUCTION_NAME 41 #define PRINT_ALIAS_INSTR 42 #include "AArch64GenAsmWriter1.inc" 43 44 AArch64InstPrinter::AArch64InstPrinter(const MCAsmInfo &MAI, 45 const MCInstrInfo &MII, 46 const MCRegisterInfo &MRI) 47 : MCInstPrinter(MAI, MII, MRI) {} 48 49 AArch64AppleInstPrinter::AArch64AppleInstPrinter(const MCAsmInfo &MAI, 50 const MCInstrInfo &MII, 51 const MCRegisterInfo &MRI) 52 : AArch64InstPrinter(MAI, MII, MRI) {} 53 54 void AArch64InstPrinter::printRegName(raw_ostream &OS, unsigned RegNo) const { 55 // This is for .cfi directives. 56 OS << getRegisterName(RegNo); 57 } 58 59 void AArch64InstPrinter::printInst(const MCInst *MI, uint64_t Address, 60 StringRef Annot, const MCSubtargetInfo &STI, 61 raw_ostream &O) { 62 // Check for special encodings and print the canonical alias instead. 63 64 unsigned Opcode = MI->getOpcode(); 65 66 if (Opcode == AArch64::SYSxt) 67 if (printSysAlias(MI, STI, O)) { 68 printAnnotation(O, Annot); 69 return; 70 } 71 72 // SBFM/UBFM should print to a nicer aliased form if possible. 73 if (Opcode == AArch64::SBFMXri || Opcode == AArch64::SBFMWri || 74 Opcode == AArch64::UBFMXri || Opcode == AArch64::UBFMWri) { 75 const MCOperand &Op0 = MI->getOperand(0); 76 const MCOperand &Op1 = MI->getOperand(1); 77 const MCOperand &Op2 = MI->getOperand(2); 78 const MCOperand &Op3 = MI->getOperand(3); 79 80 bool IsSigned = (Opcode == AArch64::SBFMXri || Opcode == AArch64::SBFMWri); 81 bool Is64Bit = (Opcode == AArch64::SBFMXri || Opcode == AArch64::UBFMXri); 82 if (Op2.isImm() && Op2.getImm() == 0 && Op3.isImm()) { 83 const char *AsmMnemonic = nullptr; 84 85 switch (Op3.getImm()) { 86 default: 87 break; 88 case 7: 89 if (IsSigned) 90 AsmMnemonic = "sxtb"; 91 else if (!Is64Bit) 92 AsmMnemonic = "uxtb"; 93 break; 94 case 15: 95 if (IsSigned) 96 AsmMnemonic = "sxth"; 97 else if (!Is64Bit) 98 AsmMnemonic = "uxth"; 99 break; 100 case 31: 101 // *xtw is only valid for signed 64-bit operations. 102 if (Is64Bit && IsSigned) 103 AsmMnemonic = "sxtw"; 104 break; 105 } 106 107 if (AsmMnemonic) { 108 O << '\t' << AsmMnemonic << '\t' << getRegisterName(Op0.getReg()) 109 << ", " << getRegisterName(getWRegFromXReg(Op1.getReg())); 110 printAnnotation(O, Annot); 111 return; 112 } 113 } 114 115 // All immediate shifts are aliases, implemented using the Bitfield 116 // instruction. In all cases the immediate shift amount shift must be in 117 // the range 0 to (reg.size -1). 118 if (Op2.isImm() && Op3.isImm()) { 119 const char *AsmMnemonic = nullptr; 120 int shift = 0; 121 int64_t immr = Op2.getImm(); 122 int64_t imms = Op3.getImm(); 123 if (Opcode == AArch64::UBFMWri && imms != 0x1F && ((imms + 1) == immr)) { 124 AsmMnemonic = "lsl"; 125 shift = 31 - imms; 126 } else if (Opcode == AArch64::UBFMXri && imms != 0x3f && 127 ((imms + 1 == immr))) { 128 AsmMnemonic = "lsl"; 129 shift = 63 - imms; 130 } else if (Opcode == AArch64::UBFMWri && imms == 0x1f) { 131 AsmMnemonic = "lsr"; 132 shift = immr; 133 } else if (Opcode == AArch64::UBFMXri && imms == 0x3f) { 134 AsmMnemonic = "lsr"; 135 shift = immr; 136 } else if (Opcode == AArch64::SBFMWri && imms == 0x1f) { 137 AsmMnemonic = "asr"; 138 shift = immr; 139 } else if (Opcode == AArch64::SBFMXri && imms == 0x3f) { 140 AsmMnemonic = "asr"; 141 shift = immr; 142 } 143 if (AsmMnemonic) { 144 O << '\t' << AsmMnemonic << '\t' << getRegisterName(Op0.getReg()) 145 << ", " << getRegisterName(Op1.getReg()) << ", #" << shift; 146 printAnnotation(O, Annot); 147 return; 148 } 149 } 150 151 // SBFIZ/UBFIZ aliases 152 if (Op2.getImm() > Op3.getImm()) { 153 O << '\t' << (IsSigned ? "sbfiz" : "ubfiz") << '\t' 154 << getRegisterName(Op0.getReg()) << ", " << getRegisterName(Op1.getReg()) 155 << ", #" << (Is64Bit ? 64 : 32) - Op2.getImm() << ", #" << Op3.getImm() + 1; 156 printAnnotation(O, Annot); 157 return; 158 } 159 160 // Otherwise SBFX/UBFX is the preferred form 161 O << '\t' << (IsSigned ? "sbfx" : "ubfx") << '\t' 162 << getRegisterName(Op0.getReg()) << ", " << getRegisterName(Op1.getReg()) 163 << ", #" << Op2.getImm() << ", #" << Op3.getImm() - Op2.getImm() + 1; 164 printAnnotation(O, Annot); 165 return; 166 } 167 168 if (Opcode == AArch64::BFMXri || Opcode == AArch64::BFMWri) { 169 const MCOperand &Op0 = MI->getOperand(0); // Op1 == Op0 170 const MCOperand &Op2 = MI->getOperand(2); 171 int ImmR = MI->getOperand(3).getImm(); 172 int ImmS = MI->getOperand(4).getImm(); 173 174 if ((Op2.getReg() == AArch64::WZR || Op2.getReg() == AArch64::XZR) && 175 (ImmR == 0 || ImmS < ImmR) && 176 STI.getFeatureBits()[AArch64::HasV8_2aOps]) { 177 // BFC takes precedence over its entire range, sligtly differently to BFI. 178 int BitWidth = Opcode == AArch64::BFMXri ? 64 : 32; 179 int LSB = (BitWidth - ImmR) % BitWidth; 180 int Width = ImmS + 1; 181 182 O << "\tbfc\t" << getRegisterName(Op0.getReg()) 183 << ", #" << LSB << ", #" << Width; 184 printAnnotation(O, Annot); 185 return; 186 } else if (ImmS < ImmR) { 187 // BFI alias 188 int BitWidth = Opcode == AArch64::BFMXri ? 64 : 32; 189 int LSB = (BitWidth - ImmR) % BitWidth; 190 int Width = ImmS + 1; 191 192 O << "\tbfi\t" << getRegisterName(Op0.getReg()) << ", " 193 << getRegisterName(Op2.getReg()) << ", #" << LSB << ", #" << Width; 194 printAnnotation(O, Annot); 195 return; 196 } 197 198 int LSB = ImmR; 199 int Width = ImmS - ImmR + 1; 200 // Otherwise BFXIL the preferred form 201 O << "\tbfxil\t" 202 << getRegisterName(Op0.getReg()) << ", " << getRegisterName(Op2.getReg()) 203 << ", #" << LSB << ", #" << Width; 204 printAnnotation(O, Annot); 205 return; 206 } 207 208 // Symbolic operands for MOVZ, MOVN and MOVK already imply a shift 209 // (e.g. :gottprel_g1: is always going to be "lsl #16") so it should not be 210 // printed. 211 if ((Opcode == AArch64::MOVZXi || Opcode == AArch64::MOVZWi || 212 Opcode == AArch64::MOVNXi || Opcode == AArch64::MOVNWi) && 213 MI->getOperand(1).isExpr()) { 214 if (Opcode == AArch64::MOVZXi || Opcode == AArch64::MOVZWi) 215 O << "\tmovz\t"; 216 else 217 O << "\tmovn\t"; 218 219 O << getRegisterName(MI->getOperand(0).getReg()) << ", #"; 220 MI->getOperand(1).getExpr()->print(O, &MAI); 221 return; 222 } 223 224 if ((Opcode == AArch64::MOVKXi || Opcode == AArch64::MOVKWi) && 225 MI->getOperand(2).isExpr()) { 226 O << "\tmovk\t" << getRegisterName(MI->getOperand(0).getReg()) << ", #"; 227 MI->getOperand(2).getExpr()->print(O, &MAI); 228 return; 229 } 230 231 // MOVZ, MOVN and "ORR wzr, #imm" instructions are aliases for MOV, but their 232 // domains overlap so they need to be prioritized. The chain is "MOVZ lsl #0 > 233 // MOVZ lsl #N > MOVN lsl #0 > MOVN lsl #N > ORR". The highest instruction 234 // that can represent the move is the MOV alias, and the rest get printed 235 // normally. 236 if ((Opcode == AArch64::MOVZXi || Opcode == AArch64::MOVZWi) && 237 MI->getOperand(1).isImm() && MI->getOperand(2).isImm()) { 238 int RegWidth = Opcode == AArch64::MOVZXi ? 64 : 32; 239 int Shift = MI->getOperand(2).getImm(); 240 uint64_t Value = (uint64_t)MI->getOperand(1).getImm() << Shift; 241 242 if (AArch64_AM::isMOVZMovAlias(Value, Shift, 243 Opcode == AArch64::MOVZXi ? 64 : 32)) { 244 O << "\tmov\t" << getRegisterName(MI->getOperand(0).getReg()) << ", #" 245 << formatImm(SignExtend64(Value, RegWidth)); 246 return; 247 } 248 } 249 250 if ((Opcode == AArch64::MOVNXi || Opcode == AArch64::MOVNWi) && 251 MI->getOperand(1).isImm() && MI->getOperand(2).isImm()) { 252 int RegWidth = Opcode == AArch64::MOVNXi ? 64 : 32; 253 int Shift = MI->getOperand(2).getImm(); 254 uint64_t Value = ~((uint64_t)MI->getOperand(1).getImm() << Shift); 255 if (RegWidth == 32) 256 Value = Value & 0xffffffff; 257 258 if (AArch64_AM::isMOVNMovAlias(Value, Shift, RegWidth)) { 259 O << "\tmov\t" << getRegisterName(MI->getOperand(0).getReg()) << ", #" 260 << formatImm(SignExtend64(Value, RegWidth)); 261 return; 262 } 263 } 264 265 if ((Opcode == AArch64::ORRXri || Opcode == AArch64::ORRWri) && 266 (MI->getOperand(1).getReg() == AArch64::XZR || 267 MI->getOperand(1).getReg() == AArch64::WZR) && 268 MI->getOperand(2).isImm()) { 269 int RegWidth = Opcode == AArch64::ORRXri ? 64 : 32; 270 uint64_t Value = AArch64_AM::decodeLogicalImmediate( 271 MI->getOperand(2).getImm(), RegWidth); 272 if (!AArch64_AM::isAnyMOVWMovAlias(Value, RegWidth)) { 273 O << "\tmov\t" << getRegisterName(MI->getOperand(0).getReg()) << ", #" 274 << formatImm(SignExtend64(Value, RegWidth)); 275 return; 276 } 277 } 278 279 if (Opcode == AArch64::CompilerBarrier) { 280 O << '\t' << MAI.getCommentString() << " COMPILER BARRIER"; 281 printAnnotation(O, Annot); 282 return; 283 } 284 285 if (Opcode == AArch64::SPACE) { 286 O << '\t' << MAI.getCommentString() << " SPACE " 287 << MI->getOperand(1).getImm(); 288 printAnnotation(O, Annot); 289 return; 290 } 291 292 // Instruction TSB is specified as a one operand instruction, but 'csync' is 293 // not encoded, so for printing it is treated as a special case here: 294 if (Opcode == AArch64::TSB) { 295 O << "\ttsb\tcsync"; 296 return; 297 } 298 299 if (!printAliasInstr(MI, Address, STI, O)) 300 printInstruction(MI, Address, STI, O); 301 302 printAnnotation(O, Annot); 303 304 if (atomicBarrierDroppedOnZero(Opcode) && 305 (MI->getOperand(0).getReg() == AArch64::XZR || 306 MI->getOperand(0).getReg() == AArch64::WZR)) { 307 printAnnotation(O, "acquire semantics dropped since destination is zero"); 308 } 309 } 310 311 static bool isTblTbxInstruction(unsigned Opcode, StringRef &Layout, 312 bool &IsTbx) { 313 switch (Opcode) { 314 case AArch64::TBXv8i8One: 315 case AArch64::TBXv8i8Two: 316 case AArch64::TBXv8i8Three: 317 case AArch64::TBXv8i8Four: 318 IsTbx = true; 319 Layout = ".8b"; 320 return true; 321 case AArch64::TBLv8i8One: 322 case AArch64::TBLv8i8Two: 323 case AArch64::TBLv8i8Three: 324 case AArch64::TBLv8i8Four: 325 IsTbx = false; 326 Layout = ".8b"; 327 return true; 328 case AArch64::TBXv16i8One: 329 case AArch64::TBXv16i8Two: 330 case AArch64::TBXv16i8Three: 331 case AArch64::TBXv16i8Four: 332 IsTbx = true; 333 Layout = ".16b"; 334 return true; 335 case AArch64::TBLv16i8One: 336 case AArch64::TBLv16i8Two: 337 case AArch64::TBLv16i8Three: 338 case AArch64::TBLv16i8Four: 339 IsTbx = false; 340 Layout = ".16b"; 341 return true; 342 default: 343 return false; 344 } 345 } 346 347 struct LdStNInstrDesc { 348 unsigned Opcode; 349 const char *Mnemonic; 350 const char *Layout; 351 int ListOperand; 352 bool HasLane; 353 int NaturalOffset; 354 }; 355 356 static const LdStNInstrDesc LdStNInstInfo[] = { 357 { AArch64::LD1i8, "ld1", ".b", 1, true, 0 }, 358 { AArch64::LD1i16, "ld1", ".h", 1, true, 0 }, 359 { AArch64::LD1i32, "ld1", ".s", 1, true, 0 }, 360 { AArch64::LD1i64, "ld1", ".d", 1, true, 0 }, 361 { AArch64::LD1i8_POST, "ld1", ".b", 2, true, 1 }, 362 { AArch64::LD1i16_POST, "ld1", ".h", 2, true, 2 }, 363 { AArch64::LD1i32_POST, "ld1", ".s", 2, true, 4 }, 364 { AArch64::LD1i64_POST, "ld1", ".d", 2, true, 8 }, 365 { AArch64::LD1Rv16b, "ld1r", ".16b", 0, false, 0 }, 366 { AArch64::LD1Rv8h, "ld1r", ".8h", 0, false, 0 }, 367 { AArch64::LD1Rv4s, "ld1r", ".4s", 0, false, 0 }, 368 { AArch64::LD1Rv2d, "ld1r", ".2d", 0, false, 0 }, 369 { AArch64::LD1Rv8b, "ld1r", ".8b", 0, false, 0 }, 370 { AArch64::LD1Rv4h, "ld1r", ".4h", 0, false, 0 }, 371 { AArch64::LD1Rv2s, "ld1r", ".2s", 0, false, 0 }, 372 { AArch64::LD1Rv1d, "ld1r", ".1d", 0, false, 0 }, 373 { AArch64::LD1Rv16b_POST, "ld1r", ".16b", 1, false, 1 }, 374 { AArch64::LD1Rv8h_POST, "ld1r", ".8h", 1, false, 2 }, 375 { AArch64::LD1Rv4s_POST, "ld1r", ".4s", 1, false, 4 }, 376 { AArch64::LD1Rv2d_POST, "ld1r", ".2d", 1, false, 8 }, 377 { AArch64::LD1Rv8b_POST, "ld1r", ".8b", 1, false, 1 }, 378 { AArch64::LD1Rv4h_POST, "ld1r", ".4h", 1, false, 2 }, 379 { AArch64::LD1Rv2s_POST, "ld1r", ".2s", 1, false, 4 }, 380 { AArch64::LD1Rv1d_POST, "ld1r", ".1d", 1, false, 8 }, 381 { AArch64::LD1Onev16b, "ld1", ".16b", 0, false, 0 }, 382 { AArch64::LD1Onev8h, "ld1", ".8h", 0, false, 0 }, 383 { AArch64::LD1Onev4s, "ld1", ".4s", 0, false, 0 }, 384 { AArch64::LD1Onev2d, "ld1", ".2d", 0, false, 0 }, 385 { AArch64::LD1Onev8b, "ld1", ".8b", 0, false, 0 }, 386 { AArch64::LD1Onev4h, "ld1", ".4h", 0, false, 0 }, 387 { AArch64::LD1Onev2s, "ld1", ".2s", 0, false, 0 }, 388 { AArch64::LD1Onev1d, "ld1", ".1d", 0, false, 0 }, 389 { AArch64::LD1Onev16b_POST, "ld1", ".16b", 1, false, 16 }, 390 { AArch64::LD1Onev8h_POST, "ld1", ".8h", 1, false, 16 }, 391 { AArch64::LD1Onev4s_POST, "ld1", ".4s", 1, false, 16 }, 392 { AArch64::LD1Onev2d_POST, "ld1", ".2d", 1, false, 16 }, 393 { AArch64::LD1Onev8b_POST, "ld1", ".8b", 1, false, 8 }, 394 { AArch64::LD1Onev4h_POST, "ld1", ".4h", 1, false, 8 }, 395 { AArch64::LD1Onev2s_POST, "ld1", ".2s", 1, false, 8 }, 396 { AArch64::LD1Onev1d_POST, "ld1", ".1d", 1, false, 8 }, 397 { AArch64::LD1Twov16b, "ld1", ".16b", 0, false, 0 }, 398 { AArch64::LD1Twov8h, "ld1", ".8h", 0, false, 0 }, 399 { AArch64::LD1Twov4s, "ld1", ".4s", 0, false, 0 }, 400 { AArch64::LD1Twov2d, "ld1", ".2d", 0, false, 0 }, 401 { AArch64::LD1Twov8b, "ld1", ".8b", 0, false, 0 }, 402 { AArch64::LD1Twov4h, "ld1", ".4h", 0, false, 0 }, 403 { AArch64::LD1Twov2s, "ld1", ".2s", 0, false, 0 }, 404 { AArch64::LD1Twov1d, "ld1", ".1d", 0, false, 0 }, 405 { AArch64::LD1Twov16b_POST, "ld1", ".16b", 1, false, 32 }, 406 { AArch64::LD1Twov8h_POST, "ld1", ".8h", 1, false, 32 }, 407 { AArch64::LD1Twov4s_POST, "ld1", ".4s", 1, false, 32 }, 408 { AArch64::LD1Twov2d_POST, "ld1", ".2d", 1, false, 32 }, 409 { AArch64::LD1Twov8b_POST, "ld1", ".8b", 1, false, 16 }, 410 { AArch64::LD1Twov4h_POST, "ld1", ".4h", 1, false, 16 }, 411 { AArch64::LD1Twov2s_POST, "ld1", ".2s", 1, false, 16 }, 412 { AArch64::LD1Twov1d_POST, "ld1", ".1d", 1, false, 16 }, 413 { AArch64::LD1Threev16b, "ld1", ".16b", 0, false, 0 }, 414 { AArch64::LD1Threev8h, "ld1", ".8h", 0, false, 0 }, 415 { AArch64::LD1Threev4s, "ld1", ".4s", 0, false, 0 }, 416 { AArch64::LD1Threev2d, "ld1", ".2d", 0, false, 0 }, 417 { AArch64::LD1Threev8b, "ld1", ".8b", 0, false, 0 }, 418 { AArch64::LD1Threev4h, "ld1", ".4h", 0, false, 0 }, 419 { AArch64::LD1Threev2s, "ld1", ".2s", 0, false, 0 }, 420 { AArch64::LD1Threev1d, "ld1", ".1d", 0, false, 0 }, 421 { AArch64::LD1Threev16b_POST, "ld1", ".16b", 1, false, 48 }, 422 { AArch64::LD1Threev8h_POST, "ld1", ".8h", 1, false, 48 }, 423 { AArch64::LD1Threev4s_POST, "ld1", ".4s", 1, false, 48 }, 424 { AArch64::LD1Threev2d_POST, "ld1", ".2d", 1, false, 48 }, 425 { AArch64::LD1Threev8b_POST, "ld1", ".8b", 1, false, 24 }, 426 { AArch64::LD1Threev4h_POST, "ld1", ".4h", 1, false, 24 }, 427 { AArch64::LD1Threev2s_POST, "ld1", ".2s", 1, false, 24 }, 428 { AArch64::LD1Threev1d_POST, "ld1", ".1d", 1, false, 24 }, 429 { AArch64::LD1Fourv16b, "ld1", ".16b", 0, false, 0 }, 430 { AArch64::LD1Fourv8h, "ld1", ".8h", 0, false, 0 }, 431 { AArch64::LD1Fourv4s, "ld1", ".4s", 0, false, 0 }, 432 { AArch64::LD1Fourv2d, "ld1", ".2d", 0, false, 0 }, 433 { AArch64::LD1Fourv8b, "ld1", ".8b", 0, false, 0 }, 434 { AArch64::LD1Fourv4h, "ld1", ".4h", 0, false, 0 }, 435 { AArch64::LD1Fourv2s, "ld1", ".2s", 0, false, 0 }, 436 { AArch64::LD1Fourv1d, "ld1", ".1d", 0, false, 0 }, 437 { AArch64::LD1Fourv16b_POST, "ld1", ".16b", 1, false, 64 }, 438 { AArch64::LD1Fourv8h_POST, "ld1", ".8h", 1, false, 64 }, 439 { AArch64::LD1Fourv4s_POST, "ld1", ".4s", 1, false, 64 }, 440 { AArch64::LD1Fourv2d_POST, "ld1", ".2d", 1, false, 64 }, 441 { AArch64::LD1Fourv8b_POST, "ld1", ".8b", 1, false, 32 }, 442 { AArch64::LD1Fourv4h_POST, "ld1", ".4h", 1, false, 32 }, 443 { AArch64::LD1Fourv2s_POST, "ld1", ".2s", 1, false, 32 }, 444 { AArch64::LD1Fourv1d_POST, "ld1", ".1d", 1, false, 32 }, 445 { AArch64::LD2i8, "ld2", ".b", 1, true, 0 }, 446 { AArch64::LD2i16, "ld2", ".h", 1, true, 0 }, 447 { AArch64::LD2i32, "ld2", ".s", 1, true, 0 }, 448 { AArch64::LD2i64, "ld2", ".d", 1, true, 0 }, 449 { AArch64::LD2i8_POST, "ld2", ".b", 2, true, 2 }, 450 { AArch64::LD2i16_POST, "ld2", ".h", 2, true, 4 }, 451 { AArch64::LD2i32_POST, "ld2", ".s", 2, true, 8 }, 452 { AArch64::LD2i64_POST, "ld2", ".d", 2, true, 16 }, 453 { AArch64::LD2Rv16b, "ld2r", ".16b", 0, false, 0 }, 454 { AArch64::LD2Rv8h, "ld2r", ".8h", 0, false, 0 }, 455 { AArch64::LD2Rv4s, "ld2r", ".4s", 0, false, 0 }, 456 { AArch64::LD2Rv2d, "ld2r", ".2d", 0, false, 0 }, 457 { AArch64::LD2Rv8b, "ld2r", ".8b", 0, false, 0 }, 458 { AArch64::LD2Rv4h, "ld2r", ".4h", 0, false, 0 }, 459 { AArch64::LD2Rv2s, "ld2r", ".2s", 0, false, 0 }, 460 { AArch64::LD2Rv1d, "ld2r", ".1d", 0, false, 0 }, 461 { AArch64::LD2Rv16b_POST, "ld2r", ".16b", 1, false, 2 }, 462 { AArch64::LD2Rv8h_POST, "ld2r", ".8h", 1, false, 4 }, 463 { AArch64::LD2Rv4s_POST, "ld2r", ".4s", 1, false, 8 }, 464 { AArch64::LD2Rv2d_POST, "ld2r", ".2d", 1, false, 16 }, 465 { AArch64::LD2Rv8b_POST, "ld2r", ".8b", 1, false, 2 }, 466 { AArch64::LD2Rv4h_POST, "ld2r", ".4h", 1, false, 4 }, 467 { AArch64::LD2Rv2s_POST, "ld2r", ".2s", 1, false, 8 }, 468 { AArch64::LD2Rv1d_POST, "ld2r", ".1d", 1, false, 16 }, 469 { AArch64::LD2Twov16b, "ld2", ".16b", 0, false, 0 }, 470 { AArch64::LD2Twov8h, "ld2", ".8h", 0, false, 0 }, 471 { AArch64::LD2Twov4s, "ld2", ".4s", 0, false, 0 }, 472 { AArch64::LD2Twov2d, "ld2", ".2d", 0, false, 0 }, 473 { AArch64::LD2Twov8b, "ld2", ".8b", 0, false, 0 }, 474 { AArch64::LD2Twov4h, "ld2", ".4h", 0, false, 0 }, 475 { AArch64::LD2Twov2s, "ld2", ".2s", 0, false, 0 }, 476 { AArch64::LD2Twov16b_POST, "ld2", ".16b", 1, false, 32 }, 477 { AArch64::LD2Twov8h_POST, "ld2", ".8h", 1, false, 32 }, 478 { AArch64::LD2Twov4s_POST, "ld2", ".4s", 1, false, 32 }, 479 { AArch64::LD2Twov2d_POST, "ld2", ".2d", 1, false, 32 }, 480 { AArch64::LD2Twov8b_POST, "ld2", ".8b", 1, false, 16 }, 481 { AArch64::LD2Twov4h_POST, "ld2", ".4h", 1, false, 16 }, 482 { AArch64::LD2Twov2s_POST, "ld2", ".2s", 1, false, 16 }, 483 { AArch64::LD3i8, "ld3", ".b", 1, true, 0 }, 484 { AArch64::LD3i16, "ld3", ".h", 1, true, 0 }, 485 { AArch64::LD3i32, "ld3", ".s", 1, true, 0 }, 486 { AArch64::LD3i64, "ld3", ".d", 1, true, 0 }, 487 { AArch64::LD3i8_POST, "ld3", ".b", 2, true, 3 }, 488 { AArch64::LD3i16_POST, "ld3", ".h", 2, true, 6 }, 489 { AArch64::LD3i32_POST, "ld3", ".s", 2, true, 12 }, 490 { AArch64::LD3i64_POST, "ld3", ".d", 2, true, 24 }, 491 { AArch64::LD3Rv16b, "ld3r", ".16b", 0, false, 0 }, 492 { AArch64::LD3Rv8h, "ld3r", ".8h", 0, false, 0 }, 493 { AArch64::LD3Rv4s, "ld3r", ".4s", 0, false, 0 }, 494 { AArch64::LD3Rv2d, "ld3r", ".2d", 0, false, 0 }, 495 { AArch64::LD3Rv8b, "ld3r", ".8b", 0, false, 0 }, 496 { AArch64::LD3Rv4h, "ld3r", ".4h", 0, false, 0 }, 497 { AArch64::LD3Rv2s, "ld3r", ".2s", 0, false, 0 }, 498 { AArch64::LD3Rv1d, "ld3r", ".1d", 0, false, 0 }, 499 { AArch64::LD3Rv16b_POST, "ld3r", ".16b", 1, false, 3 }, 500 { AArch64::LD3Rv8h_POST, "ld3r", ".8h", 1, false, 6 }, 501 { AArch64::LD3Rv4s_POST, "ld3r", ".4s", 1, false, 12 }, 502 { AArch64::LD3Rv2d_POST, "ld3r", ".2d", 1, false, 24 }, 503 { AArch64::LD3Rv8b_POST, "ld3r", ".8b", 1, false, 3 }, 504 { AArch64::LD3Rv4h_POST, "ld3r", ".4h", 1, false, 6 }, 505 { AArch64::LD3Rv2s_POST, "ld3r", ".2s", 1, false, 12 }, 506 { AArch64::LD3Rv1d_POST, "ld3r", ".1d", 1, false, 24 }, 507 { AArch64::LD3Threev16b, "ld3", ".16b", 0, false, 0 }, 508 { AArch64::LD3Threev8h, "ld3", ".8h", 0, false, 0 }, 509 { AArch64::LD3Threev4s, "ld3", ".4s", 0, false, 0 }, 510 { AArch64::LD3Threev2d, "ld3", ".2d", 0, false, 0 }, 511 { AArch64::LD3Threev8b, "ld3", ".8b", 0, false, 0 }, 512 { AArch64::LD3Threev4h, "ld3", ".4h", 0, false, 0 }, 513 { AArch64::LD3Threev2s, "ld3", ".2s", 0, false, 0 }, 514 { AArch64::LD3Threev16b_POST, "ld3", ".16b", 1, false, 48 }, 515 { AArch64::LD3Threev8h_POST, "ld3", ".8h", 1, false, 48 }, 516 { AArch64::LD3Threev4s_POST, "ld3", ".4s", 1, false, 48 }, 517 { AArch64::LD3Threev2d_POST, "ld3", ".2d", 1, false, 48 }, 518 { AArch64::LD3Threev8b_POST, "ld3", ".8b", 1, false, 24 }, 519 { AArch64::LD3Threev4h_POST, "ld3", ".4h", 1, false, 24 }, 520 { AArch64::LD3Threev2s_POST, "ld3", ".2s", 1, false, 24 }, 521 { AArch64::LD4i8, "ld4", ".b", 1, true, 0 }, 522 { AArch64::LD4i16, "ld4", ".h", 1, true, 0 }, 523 { AArch64::LD4i32, "ld4", ".s", 1, true, 0 }, 524 { AArch64::LD4i64, "ld4", ".d", 1, true, 0 }, 525 { AArch64::LD4i8_POST, "ld4", ".b", 2, true, 4 }, 526 { AArch64::LD4i16_POST, "ld4", ".h", 2, true, 8 }, 527 { AArch64::LD4i32_POST, "ld4", ".s", 2, true, 16 }, 528 { AArch64::LD4i64_POST, "ld4", ".d", 2, true, 32 }, 529 { AArch64::LD4Rv16b, "ld4r", ".16b", 0, false, 0 }, 530 { AArch64::LD4Rv8h, "ld4r", ".8h", 0, false, 0 }, 531 { AArch64::LD4Rv4s, "ld4r", ".4s", 0, false, 0 }, 532 { AArch64::LD4Rv2d, "ld4r", ".2d", 0, false, 0 }, 533 { AArch64::LD4Rv8b, "ld4r", ".8b", 0, false, 0 }, 534 { AArch64::LD4Rv4h, "ld4r", ".4h", 0, false, 0 }, 535 { AArch64::LD4Rv2s, "ld4r", ".2s", 0, false, 0 }, 536 { AArch64::LD4Rv1d, "ld4r", ".1d", 0, false, 0 }, 537 { AArch64::LD4Rv16b_POST, "ld4r", ".16b", 1, false, 4 }, 538 { AArch64::LD4Rv8h_POST, "ld4r", ".8h", 1, false, 8 }, 539 { AArch64::LD4Rv4s_POST, "ld4r", ".4s", 1, false, 16 }, 540 { AArch64::LD4Rv2d_POST, "ld4r", ".2d", 1, false, 32 }, 541 { AArch64::LD4Rv8b_POST, "ld4r", ".8b", 1, false, 4 }, 542 { AArch64::LD4Rv4h_POST, "ld4r", ".4h", 1, false, 8 }, 543 { AArch64::LD4Rv2s_POST, "ld4r", ".2s", 1, false, 16 }, 544 { AArch64::LD4Rv1d_POST, "ld4r", ".1d", 1, false, 32 }, 545 { AArch64::LD4Fourv16b, "ld4", ".16b", 0, false, 0 }, 546 { AArch64::LD4Fourv8h, "ld4", ".8h", 0, false, 0 }, 547 { AArch64::LD4Fourv4s, "ld4", ".4s", 0, false, 0 }, 548 { AArch64::LD4Fourv2d, "ld4", ".2d", 0, false, 0 }, 549 { AArch64::LD4Fourv8b, "ld4", ".8b", 0, false, 0 }, 550 { AArch64::LD4Fourv4h, "ld4", ".4h", 0, false, 0 }, 551 { AArch64::LD4Fourv2s, "ld4", ".2s", 0, false, 0 }, 552 { AArch64::LD4Fourv16b_POST, "ld4", ".16b", 1, false, 64 }, 553 { AArch64::LD4Fourv8h_POST, "ld4", ".8h", 1, false, 64 }, 554 { AArch64::LD4Fourv4s_POST, "ld4", ".4s", 1, false, 64 }, 555 { AArch64::LD4Fourv2d_POST, "ld4", ".2d", 1, false, 64 }, 556 { AArch64::LD4Fourv8b_POST, "ld4", ".8b", 1, false, 32 }, 557 { AArch64::LD4Fourv4h_POST, "ld4", ".4h", 1, false, 32 }, 558 { AArch64::LD4Fourv2s_POST, "ld4", ".2s", 1, false, 32 }, 559 { AArch64::ST1i8, "st1", ".b", 0, true, 0 }, 560 { AArch64::ST1i16, "st1", ".h", 0, true, 0 }, 561 { AArch64::ST1i32, "st1", ".s", 0, true, 0 }, 562 { AArch64::ST1i64, "st1", ".d", 0, true, 0 }, 563 { AArch64::ST1i8_POST, "st1", ".b", 1, true, 1 }, 564 { AArch64::ST1i16_POST, "st1", ".h", 1, true, 2 }, 565 { AArch64::ST1i32_POST, "st1", ".s", 1, true, 4 }, 566 { AArch64::ST1i64_POST, "st1", ".d", 1, true, 8 }, 567 { AArch64::ST1Onev16b, "st1", ".16b", 0, false, 0 }, 568 { AArch64::ST1Onev8h, "st1", ".8h", 0, false, 0 }, 569 { AArch64::ST1Onev4s, "st1", ".4s", 0, false, 0 }, 570 { AArch64::ST1Onev2d, "st1", ".2d", 0, false, 0 }, 571 { AArch64::ST1Onev8b, "st1", ".8b", 0, false, 0 }, 572 { AArch64::ST1Onev4h, "st1", ".4h", 0, false, 0 }, 573 { AArch64::ST1Onev2s, "st1", ".2s", 0, false, 0 }, 574 { AArch64::ST1Onev1d, "st1", ".1d", 0, false, 0 }, 575 { AArch64::ST1Onev16b_POST, "st1", ".16b", 1, false, 16 }, 576 { AArch64::ST1Onev8h_POST, "st1", ".8h", 1, false, 16 }, 577 { AArch64::ST1Onev4s_POST, "st1", ".4s", 1, false, 16 }, 578 { AArch64::ST1Onev2d_POST, "st1", ".2d", 1, false, 16 }, 579 { AArch64::ST1Onev8b_POST, "st1", ".8b", 1, false, 8 }, 580 { AArch64::ST1Onev4h_POST, "st1", ".4h", 1, false, 8 }, 581 { AArch64::ST1Onev2s_POST, "st1", ".2s", 1, false, 8 }, 582 { AArch64::ST1Onev1d_POST, "st1", ".1d", 1, false, 8 }, 583 { AArch64::ST1Twov16b, "st1", ".16b", 0, false, 0 }, 584 { AArch64::ST1Twov8h, "st1", ".8h", 0, false, 0 }, 585 { AArch64::ST1Twov4s, "st1", ".4s", 0, false, 0 }, 586 { AArch64::ST1Twov2d, "st1", ".2d", 0, false, 0 }, 587 { AArch64::ST1Twov8b, "st1", ".8b", 0, false, 0 }, 588 { AArch64::ST1Twov4h, "st1", ".4h", 0, false, 0 }, 589 { AArch64::ST1Twov2s, "st1", ".2s", 0, false, 0 }, 590 { AArch64::ST1Twov1d, "st1", ".1d", 0, false, 0 }, 591 { AArch64::ST1Twov16b_POST, "st1", ".16b", 1, false, 32 }, 592 { AArch64::ST1Twov8h_POST, "st1", ".8h", 1, false, 32 }, 593 { AArch64::ST1Twov4s_POST, "st1", ".4s", 1, false, 32 }, 594 { AArch64::ST1Twov2d_POST, "st1", ".2d", 1, false, 32 }, 595 { AArch64::ST1Twov8b_POST, "st1", ".8b", 1, false, 16 }, 596 { AArch64::ST1Twov4h_POST, "st1", ".4h", 1, false, 16 }, 597 { AArch64::ST1Twov2s_POST, "st1", ".2s", 1, false, 16 }, 598 { AArch64::ST1Twov1d_POST, "st1", ".1d", 1, false, 16 }, 599 { AArch64::ST1Threev16b, "st1", ".16b", 0, false, 0 }, 600 { AArch64::ST1Threev8h, "st1", ".8h", 0, false, 0 }, 601 { AArch64::ST1Threev4s, "st1", ".4s", 0, false, 0 }, 602 { AArch64::ST1Threev2d, "st1", ".2d", 0, false, 0 }, 603 { AArch64::ST1Threev8b, "st1", ".8b", 0, false, 0 }, 604 { AArch64::ST1Threev4h, "st1", ".4h", 0, false, 0 }, 605 { AArch64::ST1Threev2s, "st1", ".2s", 0, false, 0 }, 606 { AArch64::ST1Threev1d, "st1", ".1d", 0, false, 0 }, 607 { AArch64::ST1Threev16b_POST, "st1", ".16b", 1, false, 48 }, 608 { AArch64::ST1Threev8h_POST, "st1", ".8h", 1, false, 48 }, 609 { AArch64::ST1Threev4s_POST, "st1", ".4s", 1, false, 48 }, 610 { AArch64::ST1Threev2d_POST, "st1", ".2d", 1, false, 48 }, 611 { AArch64::ST1Threev8b_POST, "st1", ".8b", 1, false, 24 }, 612 { AArch64::ST1Threev4h_POST, "st1", ".4h", 1, false, 24 }, 613 { AArch64::ST1Threev2s_POST, "st1", ".2s", 1, false, 24 }, 614 { AArch64::ST1Threev1d_POST, "st1", ".1d", 1, false, 24 }, 615 { AArch64::ST1Fourv16b, "st1", ".16b", 0, false, 0 }, 616 { AArch64::ST1Fourv8h, "st1", ".8h", 0, false, 0 }, 617 { AArch64::ST1Fourv4s, "st1", ".4s", 0, false, 0 }, 618 { AArch64::ST1Fourv2d, "st1", ".2d", 0, false, 0 }, 619 { AArch64::ST1Fourv8b, "st1", ".8b", 0, false, 0 }, 620 { AArch64::ST1Fourv4h, "st1", ".4h", 0, false, 0 }, 621 { AArch64::ST1Fourv2s, "st1", ".2s", 0, false, 0 }, 622 { AArch64::ST1Fourv1d, "st1", ".1d", 0, false, 0 }, 623 { AArch64::ST1Fourv16b_POST, "st1", ".16b", 1, false, 64 }, 624 { AArch64::ST1Fourv8h_POST, "st1", ".8h", 1, false, 64 }, 625 { AArch64::ST1Fourv4s_POST, "st1", ".4s", 1, false, 64 }, 626 { AArch64::ST1Fourv2d_POST, "st1", ".2d", 1, false, 64 }, 627 { AArch64::ST1Fourv8b_POST, "st1", ".8b", 1, false, 32 }, 628 { AArch64::ST1Fourv4h_POST, "st1", ".4h", 1, false, 32 }, 629 { AArch64::ST1Fourv2s_POST, "st1", ".2s", 1, false, 32 }, 630 { AArch64::ST1Fourv1d_POST, "st1", ".1d", 1, false, 32 }, 631 { AArch64::ST2i8, "st2", ".b", 0, true, 0 }, 632 { AArch64::ST2i16, "st2", ".h", 0, true, 0 }, 633 { AArch64::ST2i32, "st2", ".s", 0, true, 0 }, 634 { AArch64::ST2i64, "st2", ".d", 0, true, 0 }, 635 { AArch64::ST2i8_POST, "st2", ".b", 1, true, 2 }, 636 { AArch64::ST2i16_POST, "st2", ".h", 1, true, 4 }, 637 { AArch64::ST2i32_POST, "st2", ".s", 1, true, 8 }, 638 { AArch64::ST2i64_POST, "st2", ".d", 1, true, 16 }, 639 { AArch64::ST2Twov16b, "st2", ".16b", 0, false, 0 }, 640 { AArch64::ST2Twov8h, "st2", ".8h", 0, false, 0 }, 641 { AArch64::ST2Twov4s, "st2", ".4s", 0, false, 0 }, 642 { AArch64::ST2Twov2d, "st2", ".2d", 0, false, 0 }, 643 { AArch64::ST2Twov8b, "st2", ".8b", 0, false, 0 }, 644 { AArch64::ST2Twov4h, "st2", ".4h", 0, false, 0 }, 645 { AArch64::ST2Twov2s, "st2", ".2s", 0, false, 0 }, 646 { AArch64::ST2Twov16b_POST, "st2", ".16b", 1, false, 32 }, 647 { AArch64::ST2Twov8h_POST, "st2", ".8h", 1, false, 32 }, 648 { AArch64::ST2Twov4s_POST, "st2", ".4s", 1, false, 32 }, 649 { AArch64::ST2Twov2d_POST, "st2", ".2d", 1, false, 32 }, 650 { AArch64::ST2Twov8b_POST, "st2", ".8b", 1, false, 16 }, 651 { AArch64::ST2Twov4h_POST, "st2", ".4h", 1, false, 16 }, 652 { AArch64::ST2Twov2s_POST, "st2", ".2s", 1, false, 16 }, 653 { AArch64::ST3i8, "st3", ".b", 0, true, 0 }, 654 { AArch64::ST3i16, "st3", ".h", 0, true, 0 }, 655 { AArch64::ST3i32, "st3", ".s", 0, true, 0 }, 656 { AArch64::ST3i64, "st3", ".d", 0, true, 0 }, 657 { AArch64::ST3i8_POST, "st3", ".b", 1, true, 3 }, 658 { AArch64::ST3i16_POST, "st3", ".h", 1, true, 6 }, 659 { AArch64::ST3i32_POST, "st3", ".s", 1, true, 12 }, 660 { AArch64::ST3i64_POST, "st3", ".d", 1, true, 24 }, 661 { AArch64::ST3Threev16b, "st3", ".16b", 0, false, 0 }, 662 { AArch64::ST3Threev8h, "st3", ".8h", 0, false, 0 }, 663 { AArch64::ST3Threev4s, "st3", ".4s", 0, false, 0 }, 664 { AArch64::ST3Threev2d, "st3", ".2d", 0, false, 0 }, 665 { AArch64::ST3Threev8b, "st3", ".8b", 0, false, 0 }, 666 { AArch64::ST3Threev4h, "st3", ".4h", 0, false, 0 }, 667 { AArch64::ST3Threev2s, "st3", ".2s", 0, false, 0 }, 668 { AArch64::ST3Threev16b_POST, "st3", ".16b", 1, false, 48 }, 669 { AArch64::ST3Threev8h_POST, "st3", ".8h", 1, false, 48 }, 670 { AArch64::ST3Threev4s_POST, "st3", ".4s", 1, false, 48 }, 671 { AArch64::ST3Threev2d_POST, "st3", ".2d", 1, false, 48 }, 672 { AArch64::ST3Threev8b_POST, "st3", ".8b", 1, false, 24 }, 673 { AArch64::ST3Threev4h_POST, "st3", ".4h", 1, false, 24 }, 674 { AArch64::ST3Threev2s_POST, "st3", ".2s", 1, false, 24 }, 675 { AArch64::ST4i8, "st4", ".b", 0, true, 0 }, 676 { AArch64::ST4i16, "st4", ".h", 0, true, 0 }, 677 { AArch64::ST4i32, "st4", ".s", 0, true, 0 }, 678 { AArch64::ST4i64, "st4", ".d", 0, true, 0 }, 679 { AArch64::ST4i8_POST, "st4", ".b", 1, true, 4 }, 680 { AArch64::ST4i16_POST, "st4", ".h", 1, true, 8 }, 681 { AArch64::ST4i32_POST, "st4", ".s", 1, true, 16 }, 682 { AArch64::ST4i64_POST, "st4", ".d", 1, true, 32 }, 683 { AArch64::ST4Fourv16b, "st4", ".16b", 0, false, 0 }, 684 { AArch64::ST4Fourv8h, "st4", ".8h", 0, false, 0 }, 685 { AArch64::ST4Fourv4s, "st4", ".4s", 0, false, 0 }, 686 { AArch64::ST4Fourv2d, "st4", ".2d", 0, false, 0 }, 687 { AArch64::ST4Fourv8b, "st4", ".8b", 0, false, 0 }, 688 { AArch64::ST4Fourv4h, "st4", ".4h", 0, false, 0 }, 689 { AArch64::ST4Fourv2s, "st4", ".2s", 0, false, 0 }, 690 { AArch64::ST4Fourv16b_POST, "st4", ".16b", 1, false, 64 }, 691 { AArch64::ST4Fourv8h_POST, "st4", ".8h", 1, false, 64 }, 692 { AArch64::ST4Fourv4s_POST, "st4", ".4s", 1, false, 64 }, 693 { AArch64::ST4Fourv2d_POST, "st4", ".2d", 1, false, 64 }, 694 { AArch64::ST4Fourv8b_POST, "st4", ".8b", 1, false, 32 }, 695 { AArch64::ST4Fourv4h_POST, "st4", ".4h", 1, false, 32 }, 696 { AArch64::ST4Fourv2s_POST, "st4", ".2s", 1, false, 32 }, 697 }; 698 699 static const LdStNInstrDesc *getLdStNInstrDesc(unsigned Opcode) { 700 unsigned Idx; 701 for (Idx = 0; Idx != array_lengthof(LdStNInstInfo); ++Idx) 702 if (LdStNInstInfo[Idx].Opcode == Opcode) 703 return &LdStNInstInfo[Idx]; 704 705 return nullptr; 706 } 707 708 void AArch64AppleInstPrinter::printInst(const MCInst *MI, uint64_t Address, 709 StringRef Annot, 710 const MCSubtargetInfo &STI, 711 raw_ostream &O) { 712 unsigned Opcode = MI->getOpcode(); 713 StringRef Layout; 714 715 bool IsTbx; 716 if (isTblTbxInstruction(MI->getOpcode(), Layout, IsTbx)) { 717 O << "\t" << (IsTbx ? "tbx" : "tbl") << Layout << '\t' 718 << getRegisterName(MI->getOperand(0).getReg(), AArch64::vreg) << ", "; 719 720 unsigned ListOpNum = IsTbx ? 2 : 1; 721 printVectorList(MI, ListOpNum, STI, O, ""); 722 723 O << ", " 724 << getRegisterName(MI->getOperand(ListOpNum + 1).getReg(), AArch64::vreg); 725 printAnnotation(O, Annot); 726 return; 727 } 728 729 if (const LdStNInstrDesc *LdStDesc = getLdStNInstrDesc(Opcode)) { 730 O << "\t" << LdStDesc->Mnemonic << LdStDesc->Layout << '\t'; 731 732 // Now onto the operands: first a vector list with possible lane 733 // specifier. E.g. { v0 }[2] 734 int OpNum = LdStDesc->ListOperand; 735 printVectorList(MI, OpNum++, STI, O, ""); 736 737 if (LdStDesc->HasLane) 738 O << '[' << MI->getOperand(OpNum++).getImm() << ']'; 739 740 // Next the address: [xN] 741 unsigned AddrReg = MI->getOperand(OpNum++).getReg(); 742 O << ", [" << getRegisterName(AddrReg) << ']'; 743 744 // Finally, there might be a post-indexed offset. 745 if (LdStDesc->NaturalOffset != 0) { 746 unsigned Reg = MI->getOperand(OpNum++).getReg(); 747 if (Reg != AArch64::XZR) 748 O << ", " << getRegisterName(Reg); 749 else { 750 assert(LdStDesc->NaturalOffset && "no offset on post-inc instruction?"); 751 O << ", #" << LdStDesc->NaturalOffset; 752 } 753 } 754 755 printAnnotation(O, Annot); 756 return; 757 } 758 759 AArch64InstPrinter::printInst(MI, Address, Annot, STI, O); 760 } 761 762 bool AArch64InstPrinter::printSysAlias(const MCInst *MI, 763 const MCSubtargetInfo &STI, 764 raw_ostream &O) { 765 #ifndef NDEBUG 766 unsigned Opcode = MI->getOpcode(); 767 assert(Opcode == AArch64::SYSxt && "Invalid opcode for SYS alias!"); 768 #endif 769 770 const MCOperand &Op1 = MI->getOperand(0); 771 const MCOperand &Cn = MI->getOperand(1); 772 const MCOperand &Cm = MI->getOperand(2); 773 const MCOperand &Op2 = MI->getOperand(3); 774 775 unsigned Op1Val = Op1.getImm(); 776 unsigned CnVal = Cn.getImm(); 777 unsigned CmVal = Cm.getImm(); 778 unsigned Op2Val = Op2.getImm(); 779 780 uint16_t Encoding = Op2Val; 781 Encoding |= CmVal << 3; 782 Encoding |= CnVal << 7; 783 Encoding |= Op1Val << 11; 784 785 bool NeedsReg; 786 std::string Ins; 787 std::string Name; 788 789 if (CnVal == 7) { 790 switch (CmVal) { 791 default: return false; 792 // Maybe IC, maybe Prediction Restriction 793 case 1: 794 switch (Op1Val) { 795 default: return false; 796 case 0: goto Search_IC; 797 case 3: goto Search_PRCTX; 798 } 799 // Prediction Restriction aliases 800 case 3: { 801 Search_PRCTX: 802 const AArch64PRCTX::PRCTX *PRCTX = AArch64PRCTX::lookupPRCTXByEncoding(Encoding >> 3); 803 if (!PRCTX || !PRCTX->haveFeatures(STI.getFeatureBits())) 804 return false; 805 806 NeedsReg = PRCTX->NeedsReg; 807 switch (Op2Val) { 808 default: return false; 809 case 4: Ins = "cfp\t"; break; 810 case 5: Ins = "dvp\t"; break; 811 case 7: Ins = "cpp\t"; break; 812 } 813 Name = std::string(PRCTX->Name); 814 } 815 break; 816 // IC aliases 817 case 5: { 818 Search_IC: 819 const AArch64IC::IC *IC = AArch64IC::lookupICByEncoding(Encoding); 820 if (!IC || !IC->haveFeatures(STI.getFeatureBits())) 821 return false; 822 823 NeedsReg = IC->NeedsReg; 824 Ins = "ic\t"; 825 Name = std::string(IC->Name); 826 } 827 break; 828 // DC aliases 829 case 4: case 6: case 10: case 11: case 12: case 13: case 14: 830 { 831 const AArch64DC::DC *DC = AArch64DC::lookupDCByEncoding(Encoding); 832 if (!DC || !DC->haveFeatures(STI.getFeatureBits())) 833 return false; 834 835 NeedsReg = true; 836 Ins = "dc\t"; 837 Name = std::string(DC->Name); 838 } 839 break; 840 // AT aliases 841 case 8: case 9: { 842 const AArch64AT::AT *AT = AArch64AT::lookupATByEncoding(Encoding); 843 if (!AT || !AT->haveFeatures(STI.getFeatureBits())) 844 return false; 845 846 NeedsReg = true; 847 Ins = "at\t"; 848 Name = std::string(AT->Name); 849 } 850 break; 851 } 852 } else if (CnVal == 8) { 853 // TLBI aliases 854 const AArch64TLBI::TLBI *TLBI = AArch64TLBI::lookupTLBIByEncoding(Encoding); 855 if (!TLBI || !TLBI->haveFeatures(STI.getFeatureBits())) 856 return false; 857 858 NeedsReg = TLBI->NeedsReg; 859 Ins = "tlbi\t"; 860 Name = std::string(TLBI->Name); 861 } 862 else 863 return false; 864 865 std::string Str = Ins + Name; 866 std::transform(Str.begin(), Str.end(), Str.begin(), ::tolower); 867 868 O << '\t' << Str; 869 if (NeedsReg) 870 O << ", " << getRegisterName(MI->getOperand(4).getReg()); 871 872 return true; 873 } 874 875 void AArch64InstPrinter::printOperand(const MCInst *MI, unsigned OpNo, 876 const MCSubtargetInfo &STI, 877 raw_ostream &O) { 878 const MCOperand &Op = MI->getOperand(OpNo); 879 if (Op.isReg()) { 880 unsigned Reg = Op.getReg(); 881 O << getRegisterName(Reg); 882 } else if (Op.isImm()) { 883 printImm(MI, OpNo, STI, O); 884 } else { 885 assert(Op.isExpr() && "unknown operand kind in printOperand"); 886 Op.getExpr()->print(O, &MAI); 887 } 888 } 889 890 void AArch64InstPrinter::printImm(const MCInst *MI, unsigned OpNo, 891 const MCSubtargetInfo &STI, 892 raw_ostream &O) { 893 const MCOperand &Op = MI->getOperand(OpNo); 894 O << "#" << formatImm(Op.getImm()); 895 } 896 897 void AArch64InstPrinter::printImmHex(const MCInst *MI, unsigned OpNo, 898 const MCSubtargetInfo &STI, 899 raw_ostream &O) { 900 const MCOperand &Op = MI->getOperand(OpNo); 901 O << format("#%#llx", Op.getImm()); 902 } 903 904 template<int Size> 905 void AArch64InstPrinter::printSImm(const MCInst *MI, unsigned OpNo, 906 const MCSubtargetInfo &STI, 907 raw_ostream &O) { 908 const MCOperand &Op = MI->getOperand(OpNo); 909 if (Size == 8) 910 O << "#" << formatImm((signed char)Op.getImm()); 911 else if (Size == 16) 912 O << "#" << formatImm((signed short)Op.getImm()); 913 else 914 O << "#" << formatImm(Op.getImm()); 915 } 916 917 void AArch64InstPrinter::printPostIncOperand(const MCInst *MI, unsigned OpNo, 918 unsigned Imm, raw_ostream &O) { 919 const MCOperand &Op = MI->getOperand(OpNo); 920 if (Op.isReg()) { 921 unsigned Reg = Op.getReg(); 922 if (Reg == AArch64::XZR) 923 O << "#" << Imm; 924 else 925 O << getRegisterName(Reg); 926 } else 927 llvm_unreachable("unknown operand kind in printPostIncOperand64"); 928 } 929 930 void AArch64InstPrinter::printVRegOperand(const MCInst *MI, unsigned OpNo, 931 const MCSubtargetInfo &STI, 932 raw_ostream &O) { 933 const MCOperand &Op = MI->getOperand(OpNo); 934 assert(Op.isReg() && "Non-register vreg operand!"); 935 unsigned Reg = Op.getReg(); 936 O << getRegisterName(Reg, AArch64::vreg); 937 } 938 939 void AArch64InstPrinter::printSysCROperand(const MCInst *MI, unsigned OpNo, 940 const MCSubtargetInfo &STI, 941 raw_ostream &O) { 942 const MCOperand &Op = MI->getOperand(OpNo); 943 assert(Op.isImm() && "System instruction C[nm] operands must be immediates!"); 944 O << "c" << Op.getImm(); 945 } 946 947 void AArch64InstPrinter::printAddSubImm(const MCInst *MI, unsigned OpNum, 948 const MCSubtargetInfo &STI, 949 raw_ostream &O) { 950 const MCOperand &MO = MI->getOperand(OpNum); 951 if (MO.isImm()) { 952 unsigned Val = (MO.getImm() & 0xfff); 953 assert(Val == MO.getImm() && "Add/sub immediate out of range!"); 954 unsigned Shift = 955 AArch64_AM::getShiftValue(MI->getOperand(OpNum + 1).getImm()); 956 O << '#' << formatImm(Val); 957 if (Shift != 0) 958 printShifter(MI, OpNum + 1, STI, O); 959 960 if (CommentStream) 961 *CommentStream << '=' << formatImm(Val << Shift) << '\n'; 962 } else { 963 assert(MO.isExpr() && "Unexpected operand type!"); 964 MO.getExpr()->print(O, &MAI); 965 printShifter(MI, OpNum + 1, STI, O); 966 } 967 } 968 969 template <typename T> 970 void AArch64InstPrinter::printLogicalImm(const MCInst *MI, unsigned OpNum, 971 const MCSubtargetInfo &STI, 972 raw_ostream &O) { 973 uint64_t Val = MI->getOperand(OpNum).getImm(); 974 O << "#0x"; 975 O.write_hex(AArch64_AM::decodeLogicalImmediate(Val, 8 * sizeof(T))); 976 } 977 978 void AArch64InstPrinter::printShifter(const MCInst *MI, unsigned OpNum, 979 const MCSubtargetInfo &STI, 980 raw_ostream &O) { 981 unsigned Val = MI->getOperand(OpNum).getImm(); 982 // LSL #0 should not be printed. 983 if (AArch64_AM::getShiftType(Val) == AArch64_AM::LSL && 984 AArch64_AM::getShiftValue(Val) == 0) 985 return; 986 O << ", " << AArch64_AM::getShiftExtendName(AArch64_AM::getShiftType(Val)) 987 << " #" << AArch64_AM::getShiftValue(Val); 988 } 989 990 void AArch64InstPrinter::printShiftedRegister(const MCInst *MI, unsigned OpNum, 991 const MCSubtargetInfo &STI, 992 raw_ostream &O) { 993 O << getRegisterName(MI->getOperand(OpNum).getReg()); 994 printShifter(MI, OpNum + 1, STI, O); 995 } 996 997 void AArch64InstPrinter::printExtendedRegister(const MCInst *MI, unsigned OpNum, 998 const MCSubtargetInfo &STI, 999 raw_ostream &O) { 1000 O << getRegisterName(MI->getOperand(OpNum).getReg()); 1001 printArithExtend(MI, OpNum + 1, STI, O); 1002 } 1003 1004 void AArch64InstPrinter::printArithExtend(const MCInst *MI, unsigned OpNum, 1005 const MCSubtargetInfo &STI, 1006 raw_ostream &O) { 1007 unsigned Val = MI->getOperand(OpNum).getImm(); 1008 AArch64_AM::ShiftExtendType ExtType = AArch64_AM::getArithExtendType(Val); 1009 unsigned ShiftVal = AArch64_AM::getArithShiftValue(Val); 1010 1011 // If the destination or first source register operand is [W]SP, print 1012 // UXTW/UXTX as LSL, and if the shift amount is also zero, print nothing at 1013 // all. 1014 if (ExtType == AArch64_AM::UXTW || ExtType == AArch64_AM::UXTX) { 1015 unsigned Dest = MI->getOperand(0).getReg(); 1016 unsigned Src1 = MI->getOperand(1).getReg(); 1017 if ( ((Dest == AArch64::SP || Src1 == AArch64::SP) && 1018 ExtType == AArch64_AM::UXTX) || 1019 ((Dest == AArch64::WSP || Src1 == AArch64::WSP) && 1020 ExtType == AArch64_AM::UXTW) ) { 1021 if (ShiftVal != 0) 1022 O << ", lsl #" << ShiftVal; 1023 return; 1024 } 1025 } 1026 O << ", " << AArch64_AM::getShiftExtendName(ExtType); 1027 if (ShiftVal != 0) 1028 O << " #" << ShiftVal; 1029 } 1030 1031 static void printMemExtendImpl(bool SignExtend, bool DoShift, 1032 unsigned Width, char SrcRegKind, 1033 raw_ostream &O) { 1034 // sxtw, sxtx, uxtw or lsl (== uxtx) 1035 bool IsLSL = !SignExtend && SrcRegKind == 'x'; 1036 if (IsLSL) 1037 O << "lsl"; 1038 else 1039 O << (SignExtend ? 's' : 'u') << "xt" << SrcRegKind; 1040 1041 if (DoShift || IsLSL) 1042 O << " #" << Log2_32(Width / 8); 1043 } 1044 1045 void AArch64InstPrinter::printMemExtend(const MCInst *MI, unsigned OpNum, 1046 raw_ostream &O, char SrcRegKind, 1047 unsigned Width) { 1048 bool SignExtend = MI->getOperand(OpNum).getImm(); 1049 bool DoShift = MI->getOperand(OpNum + 1).getImm(); 1050 printMemExtendImpl(SignExtend, DoShift, Width, SrcRegKind, O); 1051 } 1052 1053 template <bool SignExtend, int ExtWidth, char SrcRegKind, char Suffix> 1054 void AArch64InstPrinter::printRegWithShiftExtend(const MCInst *MI, 1055 unsigned OpNum, 1056 const MCSubtargetInfo &STI, 1057 raw_ostream &O) { 1058 printOperand(MI, OpNum, STI, O); 1059 if (Suffix == 's' || Suffix == 'd') 1060 O << '.' << Suffix; 1061 else 1062 assert(Suffix == 0 && "Unsupported suffix size"); 1063 1064 bool DoShift = ExtWidth != 8; 1065 if (SignExtend || DoShift || SrcRegKind == 'w') { 1066 O << ", "; 1067 printMemExtendImpl(SignExtend, DoShift, ExtWidth, SrcRegKind, O); 1068 } 1069 } 1070 1071 void AArch64InstPrinter::printCondCode(const MCInst *MI, unsigned OpNum, 1072 const MCSubtargetInfo &STI, 1073 raw_ostream &O) { 1074 AArch64CC::CondCode CC = (AArch64CC::CondCode)MI->getOperand(OpNum).getImm(); 1075 O << AArch64CC::getCondCodeName(CC); 1076 } 1077 1078 void AArch64InstPrinter::printInverseCondCode(const MCInst *MI, unsigned OpNum, 1079 const MCSubtargetInfo &STI, 1080 raw_ostream &O) { 1081 AArch64CC::CondCode CC = (AArch64CC::CondCode)MI->getOperand(OpNum).getImm(); 1082 O << AArch64CC::getCondCodeName(AArch64CC::getInvertedCondCode(CC)); 1083 } 1084 1085 void AArch64InstPrinter::printAMNoIndex(const MCInst *MI, unsigned OpNum, 1086 const MCSubtargetInfo &STI, 1087 raw_ostream &O) { 1088 O << '[' << getRegisterName(MI->getOperand(OpNum).getReg()) << ']'; 1089 } 1090 1091 template<int Scale> 1092 void AArch64InstPrinter::printImmScale(const MCInst *MI, unsigned OpNum, 1093 const MCSubtargetInfo &STI, 1094 raw_ostream &O) { 1095 O << '#' << formatImm(Scale * MI->getOperand(OpNum).getImm()); 1096 } 1097 1098 void AArch64InstPrinter::printUImm12Offset(const MCInst *MI, unsigned OpNum, 1099 unsigned Scale, raw_ostream &O) { 1100 const MCOperand MO = MI->getOperand(OpNum); 1101 if (MO.isImm()) { 1102 O << "#" << formatImm(MO.getImm() * Scale); 1103 } else { 1104 assert(MO.isExpr() && "Unexpected operand type!"); 1105 MO.getExpr()->print(O, &MAI); 1106 } 1107 } 1108 1109 void AArch64InstPrinter::printAMIndexedWB(const MCInst *MI, unsigned OpNum, 1110 unsigned Scale, raw_ostream &O) { 1111 const MCOperand MO1 = MI->getOperand(OpNum + 1); 1112 O << '[' << getRegisterName(MI->getOperand(OpNum).getReg()); 1113 if (MO1.isImm()) { 1114 O << ", #" << formatImm(MO1.getImm() * Scale); 1115 } else { 1116 assert(MO1.isExpr() && "Unexpected operand type!"); 1117 O << ", "; 1118 MO1.getExpr()->print(O, &MAI); 1119 } 1120 O << ']'; 1121 } 1122 1123 template <bool IsSVEPrefetch> 1124 void AArch64InstPrinter::printPrefetchOp(const MCInst *MI, unsigned OpNum, 1125 const MCSubtargetInfo &STI, 1126 raw_ostream &O) { 1127 unsigned prfop = MI->getOperand(OpNum).getImm(); 1128 if (IsSVEPrefetch) { 1129 if (auto PRFM = AArch64SVEPRFM::lookupSVEPRFMByEncoding(prfop)) { 1130 O << PRFM->Name; 1131 return; 1132 } 1133 } else if (auto PRFM = AArch64PRFM::lookupPRFMByEncoding(prfop)) { 1134 O << PRFM->Name; 1135 return; 1136 } 1137 1138 O << '#' << formatImm(prfop); 1139 } 1140 1141 void AArch64InstPrinter::printPSBHintOp(const MCInst *MI, unsigned OpNum, 1142 const MCSubtargetInfo &STI, 1143 raw_ostream &O) { 1144 unsigned psbhintop = MI->getOperand(OpNum).getImm(); 1145 auto PSB = AArch64PSBHint::lookupPSBByEncoding(psbhintop); 1146 if (PSB) 1147 O << PSB->Name; 1148 else 1149 O << '#' << formatImm(psbhintop); 1150 } 1151 1152 void AArch64InstPrinter::printBTIHintOp(const MCInst *MI, unsigned OpNum, 1153 const MCSubtargetInfo &STI, 1154 raw_ostream &O) { 1155 unsigned btihintop = (MI->getOperand(OpNum).getImm() ^ 32) >> 1; 1156 auto BTI = AArch64BTIHint::lookupBTIByEncoding(btihintop); 1157 if (BTI) 1158 O << BTI->Name; 1159 else 1160 O << '#' << formatImm(btihintop); 1161 } 1162 1163 void AArch64InstPrinter::printFPImmOperand(const MCInst *MI, unsigned OpNum, 1164 const MCSubtargetInfo &STI, 1165 raw_ostream &O) { 1166 const MCOperand &MO = MI->getOperand(OpNum); 1167 float FPImm = 1168 MO.isFPImm() ? MO.getFPImm() : AArch64_AM::getFPImmFloat(MO.getImm()); 1169 1170 // 8 decimal places are enough to perfectly represent permitted floats. 1171 O << format("#%.8f", FPImm); 1172 } 1173 1174 static unsigned getNextVectorRegister(unsigned Reg, unsigned Stride = 1) { 1175 while (Stride--) { 1176 switch (Reg) { 1177 default: 1178 llvm_unreachable("Vector register expected!"); 1179 case AArch64::Q0: Reg = AArch64::Q1; break; 1180 case AArch64::Q1: Reg = AArch64::Q2; break; 1181 case AArch64::Q2: Reg = AArch64::Q3; break; 1182 case AArch64::Q3: Reg = AArch64::Q4; break; 1183 case AArch64::Q4: Reg = AArch64::Q5; break; 1184 case AArch64::Q5: Reg = AArch64::Q6; break; 1185 case AArch64::Q6: Reg = AArch64::Q7; break; 1186 case AArch64::Q7: Reg = AArch64::Q8; break; 1187 case AArch64::Q8: Reg = AArch64::Q9; break; 1188 case AArch64::Q9: Reg = AArch64::Q10; break; 1189 case AArch64::Q10: Reg = AArch64::Q11; break; 1190 case AArch64::Q11: Reg = AArch64::Q12; break; 1191 case AArch64::Q12: Reg = AArch64::Q13; break; 1192 case AArch64::Q13: Reg = AArch64::Q14; break; 1193 case AArch64::Q14: Reg = AArch64::Q15; break; 1194 case AArch64::Q15: Reg = AArch64::Q16; break; 1195 case AArch64::Q16: Reg = AArch64::Q17; break; 1196 case AArch64::Q17: Reg = AArch64::Q18; break; 1197 case AArch64::Q18: Reg = AArch64::Q19; break; 1198 case AArch64::Q19: Reg = AArch64::Q20; break; 1199 case AArch64::Q20: Reg = AArch64::Q21; break; 1200 case AArch64::Q21: Reg = AArch64::Q22; break; 1201 case AArch64::Q22: Reg = AArch64::Q23; break; 1202 case AArch64::Q23: Reg = AArch64::Q24; break; 1203 case AArch64::Q24: Reg = AArch64::Q25; break; 1204 case AArch64::Q25: Reg = AArch64::Q26; break; 1205 case AArch64::Q26: Reg = AArch64::Q27; break; 1206 case AArch64::Q27: Reg = AArch64::Q28; break; 1207 case AArch64::Q28: Reg = AArch64::Q29; break; 1208 case AArch64::Q29: Reg = AArch64::Q30; break; 1209 case AArch64::Q30: Reg = AArch64::Q31; break; 1210 // Vector lists can wrap around. 1211 case AArch64::Q31: 1212 Reg = AArch64::Q0; 1213 break; 1214 case AArch64::Z0: Reg = AArch64::Z1; break; 1215 case AArch64::Z1: Reg = AArch64::Z2; break; 1216 case AArch64::Z2: Reg = AArch64::Z3; break; 1217 case AArch64::Z3: Reg = AArch64::Z4; break; 1218 case AArch64::Z4: Reg = AArch64::Z5; break; 1219 case AArch64::Z5: Reg = AArch64::Z6; break; 1220 case AArch64::Z6: Reg = AArch64::Z7; break; 1221 case AArch64::Z7: Reg = AArch64::Z8; break; 1222 case AArch64::Z8: Reg = AArch64::Z9; break; 1223 case AArch64::Z9: Reg = AArch64::Z10; break; 1224 case AArch64::Z10: Reg = AArch64::Z11; break; 1225 case AArch64::Z11: Reg = AArch64::Z12; break; 1226 case AArch64::Z12: Reg = AArch64::Z13; break; 1227 case AArch64::Z13: Reg = AArch64::Z14; break; 1228 case AArch64::Z14: Reg = AArch64::Z15; break; 1229 case AArch64::Z15: Reg = AArch64::Z16; break; 1230 case AArch64::Z16: Reg = AArch64::Z17; break; 1231 case AArch64::Z17: Reg = AArch64::Z18; break; 1232 case AArch64::Z18: Reg = AArch64::Z19; break; 1233 case AArch64::Z19: Reg = AArch64::Z20; break; 1234 case AArch64::Z20: Reg = AArch64::Z21; break; 1235 case AArch64::Z21: Reg = AArch64::Z22; break; 1236 case AArch64::Z22: Reg = AArch64::Z23; break; 1237 case AArch64::Z23: Reg = AArch64::Z24; break; 1238 case AArch64::Z24: Reg = AArch64::Z25; break; 1239 case AArch64::Z25: Reg = AArch64::Z26; break; 1240 case AArch64::Z26: Reg = AArch64::Z27; break; 1241 case AArch64::Z27: Reg = AArch64::Z28; break; 1242 case AArch64::Z28: Reg = AArch64::Z29; break; 1243 case AArch64::Z29: Reg = AArch64::Z30; break; 1244 case AArch64::Z30: Reg = AArch64::Z31; break; 1245 // Vector lists can wrap around. 1246 case AArch64::Z31: 1247 Reg = AArch64::Z0; 1248 break; 1249 } 1250 } 1251 return Reg; 1252 } 1253 1254 template<unsigned size> 1255 void AArch64InstPrinter::printGPRSeqPairsClassOperand(const MCInst *MI, 1256 unsigned OpNum, 1257 const MCSubtargetInfo &STI, 1258 raw_ostream &O) { 1259 static_assert(size == 64 || size == 32, 1260 "Template parameter must be either 32 or 64"); 1261 unsigned Reg = MI->getOperand(OpNum).getReg(); 1262 1263 unsigned Sube = (size == 32) ? AArch64::sube32 : AArch64::sube64; 1264 unsigned Subo = (size == 32) ? AArch64::subo32 : AArch64::subo64; 1265 1266 unsigned Even = MRI.getSubReg(Reg, Sube); 1267 unsigned Odd = MRI.getSubReg(Reg, Subo); 1268 O << getRegisterName(Even) << ", " << getRegisterName(Odd); 1269 } 1270 1271 void AArch64InstPrinter::printVectorList(const MCInst *MI, unsigned OpNum, 1272 const MCSubtargetInfo &STI, 1273 raw_ostream &O, 1274 StringRef LayoutSuffix) { 1275 unsigned Reg = MI->getOperand(OpNum).getReg(); 1276 1277 O << "{ "; 1278 1279 // Work out how many registers there are in the list (if there is an actual 1280 // list). 1281 unsigned NumRegs = 1; 1282 if (MRI.getRegClass(AArch64::DDRegClassID).contains(Reg) || 1283 MRI.getRegClass(AArch64::ZPR2RegClassID).contains(Reg) || 1284 MRI.getRegClass(AArch64::QQRegClassID).contains(Reg)) 1285 NumRegs = 2; 1286 else if (MRI.getRegClass(AArch64::DDDRegClassID).contains(Reg) || 1287 MRI.getRegClass(AArch64::ZPR3RegClassID).contains(Reg) || 1288 MRI.getRegClass(AArch64::QQQRegClassID).contains(Reg)) 1289 NumRegs = 3; 1290 else if (MRI.getRegClass(AArch64::DDDDRegClassID).contains(Reg) || 1291 MRI.getRegClass(AArch64::ZPR4RegClassID).contains(Reg) || 1292 MRI.getRegClass(AArch64::QQQQRegClassID).contains(Reg)) 1293 NumRegs = 4; 1294 1295 // Now forget about the list and find out what the first register is. 1296 if (unsigned FirstReg = MRI.getSubReg(Reg, AArch64::dsub0)) 1297 Reg = FirstReg; 1298 else if (unsigned FirstReg = MRI.getSubReg(Reg, AArch64::qsub0)) 1299 Reg = FirstReg; 1300 else if (unsigned FirstReg = MRI.getSubReg(Reg, AArch64::zsub0)) 1301 Reg = FirstReg; 1302 1303 // If it's a D-reg, we need to promote it to the equivalent Q-reg before 1304 // printing (otherwise getRegisterName fails). 1305 if (MRI.getRegClass(AArch64::FPR64RegClassID).contains(Reg)) { 1306 const MCRegisterClass &FPR128RC = 1307 MRI.getRegClass(AArch64::FPR128RegClassID); 1308 Reg = MRI.getMatchingSuperReg(Reg, AArch64::dsub, &FPR128RC); 1309 } 1310 1311 for (unsigned i = 0; i < NumRegs; ++i, Reg = getNextVectorRegister(Reg)) { 1312 if (MRI.getRegClass(AArch64::ZPRRegClassID).contains(Reg)) 1313 O << getRegisterName(Reg) << LayoutSuffix; 1314 else 1315 O << getRegisterName(Reg, AArch64::vreg) << LayoutSuffix; 1316 1317 if (i + 1 != NumRegs) 1318 O << ", "; 1319 } 1320 1321 O << " }"; 1322 } 1323 1324 void 1325 AArch64InstPrinter::printImplicitlyTypedVectorList(const MCInst *MI, 1326 unsigned OpNum, 1327 const MCSubtargetInfo &STI, 1328 raw_ostream &O) { 1329 printVectorList(MI, OpNum, STI, O, ""); 1330 } 1331 1332 template <unsigned NumLanes, char LaneKind> 1333 void AArch64InstPrinter::printTypedVectorList(const MCInst *MI, unsigned OpNum, 1334 const MCSubtargetInfo &STI, 1335 raw_ostream &O) { 1336 std::string Suffix("."); 1337 if (NumLanes) 1338 Suffix += itostr(NumLanes) + LaneKind; 1339 else 1340 Suffix += LaneKind; 1341 1342 printVectorList(MI, OpNum, STI, O, Suffix); 1343 } 1344 1345 void AArch64InstPrinter::printVectorIndex(const MCInst *MI, unsigned OpNum, 1346 const MCSubtargetInfo &STI, 1347 raw_ostream &O) { 1348 O << "[" << MI->getOperand(OpNum).getImm() << "]"; 1349 } 1350 1351 void AArch64InstPrinter::printAlignedLabel(const MCInst *MI, uint64_t Address, 1352 unsigned OpNum, 1353 const MCSubtargetInfo &STI, 1354 raw_ostream &O) { 1355 const MCOperand &Op = MI->getOperand(OpNum); 1356 1357 // If the label has already been resolved to an immediate offset (say, when 1358 // we're running the disassembler), just print the immediate. 1359 if (Op.isImm()) { 1360 int64_t Offset = Op.getImm() * 4; 1361 if (PrintBranchImmAsAddress) 1362 O << formatHex(Address + Offset); 1363 else 1364 O << "#" << formatImm(Offset); 1365 return; 1366 } 1367 1368 // If the branch target is simply an address then print it in hex. 1369 const MCConstantExpr *BranchTarget = 1370 dyn_cast<MCConstantExpr>(MI->getOperand(OpNum).getExpr()); 1371 int64_t TargetAddress; 1372 if (BranchTarget && BranchTarget->evaluateAsAbsolute(TargetAddress)) { 1373 O << formatHex(TargetAddress); 1374 } else { 1375 // Otherwise, just print the expression. 1376 MI->getOperand(OpNum).getExpr()->print(O, &MAI); 1377 } 1378 } 1379 1380 void AArch64InstPrinter::printAdrpLabel(const MCInst *MI, unsigned OpNum, 1381 const MCSubtargetInfo &STI, 1382 raw_ostream &O) { 1383 const MCOperand &Op = MI->getOperand(OpNum); 1384 1385 // If the label has already been resolved to an immediate offset (say, when 1386 // we're running the disassembler), just print the immediate. 1387 if (Op.isImm()) { 1388 O << "#" << formatImm(Op.getImm() * (1 << 12)); 1389 return; 1390 } 1391 1392 // Otherwise, just print the expression. 1393 MI->getOperand(OpNum).getExpr()->print(O, &MAI); 1394 } 1395 1396 void AArch64InstPrinter::printBarrierOption(const MCInst *MI, unsigned OpNo, 1397 const MCSubtargetInfo &STI, 1398 raw_ostream &O) { 1399 unsigned Val = MI->getOperand(OpNo).getImm(); 1400 unsigned Opcode = MI->getOpcode(); 1401 1402 StringRef Name; 1403 if (Opcode == AArch64::ISB) { 1404 auto ISB = AArch64ISB::lookupISBByEncoding(Val); 1405 Name = ISB ? ISB->Name : ""; 1406 } else if (Opcode == AArch64::TSB) { 1407 auto TSB = AArch64TSB::lookupTSBByEncoding(Val); 1408 Name = TSB ? TSB->Name : ""; 1409 } else { 1410 auto DB = AArch64DB::lookupDBByEncoding(Val); 1411 Name = DB ? DB->Name : ""; 1412 } 1413 if (!Name.empty()) 1414 O << Name; 1415 else 1416 O << "#" << Val; 1417 } 1418 1419 void AArch64InstPrinter::printMRSSystemRegister(const MCInst *MI, unsigned OpNo, 1420 const MCSubtargetInfo &STI, 1421 raw_ostream &O) { 1422 unsigned Val = MI->getOperand(OpNo).getImm(); 1423 1424 // Horrible hack for the one register that has identical encodings but 1425 // different names in MSR and MRS. Because of this, one of MRS and MSR is 1426 // going to get the wrong entry 1427 if (Val == AArch64SysReg::DBGDTRRX_EL0) { 1428 O << "DBGDTRRX_EL0"; 1429 return; 1430 } 1431 1432 // Horrible hack for two different registers having the same encoding. 1433 if (Val == AArch64SysReg::TRCEXTINSELR) { 1434 O << "TRCEXTINSELR"; 1435 return; 1436 } 1437 1438 const AArch64SysReg::SysReg *Reg = AArch64SysReg::lookupSysRegByEncoding(Val); 1439 if (Reg && Reg->Readable && Reg->haveFeatures(STI.getFeatureBits())) 1440 O << Reg->Name; 1441 else 1442 O << AArch64SysReg::genericRegisterString(Val); 1443 } 1444 1445 void AArch64InstPrinter::printMSRSystemRegister(const MCInst *MI, unsigned OpNo, 1446 const MCSubtargetInfo &STI, 1447 raw_ostream &O) { 1448 unsigned Val = MI->getOperand(OpNo).getImm(); 1449 1450 // Horrible hack for the one register that has identical encodings but 1451 // different names in MSR and MRS. Because of this, one of MRS and MSR is 1452 // going to get the wrong entry 1453 if (Val == AArch64SysReg::DBGDTRTX_EL0) { 1454 O << "DBGDTRTX_EL0"; 1455 return; 1456 } 1457 1458 // Horrible hack for two different registers having the same encoding. 1459 if (Val == AArch64SysReg::TRCEXTINSELR) { 1460 O << "TRCEXTINSELR"; 1461 return; 1462 } 1463 1464 const AArch64SysReg::SysReg *Reg = AArch64SysReg::lookupSysRegByEncoding(Val); 1465 if (Reg && Reg->Writeable && Reg->haveFeatures(STI.getFeatureBits())) 1466 O << Reg->Name; 1467 else 1468 O << AArch64SysReg::genericRegisterString(Val); 1469 } 1470 1471 void AArch64InstPrinter::printSystemPStateField(const MCInst *MI, unsigned OpNo, 1472 const MCSubtargetInfo &STI, 1473 raw_ostream &O) { 1474 unsigned Val = MI->getOperand(OpNo).getImm(); 1475 1476 auto PState = AArch64PState::lookupPStateByEncoding(Val); 1477 if (PState && PState->haveFeatures(STI.getFeatureBits())) 1478 O << PState->Name; 1479 else 1480 O << "#" << formatImm(Val); 1481 } 1482 1483 void AArch64InstPrinter::printSIMDType10Operand(const MCInst *MI, unsigned OpNo, 1484 const MCSubtargetInfo &STI, 1485 raw_ostream &O) { 1486 unsigned RawVal = MI->getOperand(OpNo).getImm(); 1487 uint64_t Val = AArch64_AM::decodeAdvSIMDModImmType10(RawVal); 1488 O << format("#%#016llx", Val); 1489 } 1490 1491 template<int64_t Angle, int64_t Remainder> 1492 void AArch64InstPrinter::printComplexRotationOp(const MCInst *MI, unsigned OpNo, 1493 const MCSubtargetInfo &STI, 1494 raw_ostream &O) { 1495 unsigned Val = MI->getOperand(OpNo).getImm(); 1496 O << "#" << (Val * Angle) + Remainder; 1497 } 1498 1499 void AArch64InstPrinter::printSVEPattern(const MCInst *MI, unsigned OpNum, 1500 const MCSubtargetInfo &STI, 1501 raw_ostream &O) { 1502 unsigned Val = MI->getOperand(OpNum).getImm(); 1503 if (auto Pat = AArch64SVEPredPattern::lookupSVEPREDPATByEncoding(Val)) 1504 O << Pat->Name; 1505 else 1506 O << '#' << formatImm(Val); 1507 } 1508 1509 template <char suffix> 1510 void AArch64InstPrinter::printSVERegOp(const MCInst *MI, unsigned OpNum, 1511 const MCSubtargetInfo &STI, 1512 raw_ostream &O) { 1513 switch (suffix) { 1514 case 0: 1515 case 'b': 1516 case 'h': 1517 case 's': 1518 case 'd': 1519 case 'q': 1520 break; 1521 default: llvm_unreachable("Invalid kind specifier."); 1522 } 1523 1524 unsigned Reg = MI->getOperand(OpNum).getReg(); 1525 O << getRegisterName(Reg); 1526 if (suffix != 0) 1527 O << '.' << suffix; 1528 } 1529 1530 template <typename T> 1531 void AArch64InstPrinter::printImmSVE(T Value, raw_ostream &O) { 1532 std::make_unsigned_t<T> HexValue = Value; 1533 1534 if (getPrintImmHex()) 1535 O << '#' << formatHex((uint64_t)HexValue); 1536 else 1537 O << '#' << formatDec(Value); 1538 1539 if (CommentStream) { 1540 // Do the opposite to that used for instruction operands. 1541 if (getPrintImmHex()) 1542 *CommentStream << '=' << formatDec(HexValue) << '\n'; 1543 else 1544 *CommentStream << '=' << formatHex((uint64_t)Value) << '\n'; 1545 } 1546 } 1547 1548 template <typename T> 1549 void AArch64InstPrinter::printImm8OptLsl(const MCInst *MI, unsigned OpNum, 1550 const MCSubtargetInfo &STI, 1551 raw_ostream &O) { 1552 unsigned UnscaledVal = MI->getOperand(OpNum).getImm(); 1553 unsigned Shift = MI->getOperand(OpNum + 1).getImm(); 1554 assert(AArch64_AM::getShiftType(Shift) == AArch64_AM::LSL && 1555 "Unexepected shift type!"); 1556 1557 // #0 lsl #8 is never pretty printed 1558 if ((UnscaledVal == 0) && (AArch64_AM::getShiftValue(Shift) != 0)) { 1559 O << '#' << formatImm(UnscaledVal); 1560 printShifter(MI, OpNum + 1, STI, O); 1561 return; 1562 } 1563 1564 T Val; 1565 if (std::is_signed<T>()) 1566 Val = (int8_t)UnscaledVal * (1 << AArch64_AM::getShiftValue(Shift)); 1567 else 1568 Val = (uint8_t)UnscaledVal * (1 << AArch64_AM::getShiftValue(Shift)); 1569 1570 printImmSVE(Val, O); 1571 } 1572 1573 template <typename T> 1574 void AArch64InstPrinter::printSVELogicalImm(const MCInst *MI, unsigned OpNum, 1575 const MCSubtargetInfo &STI, 1576 raw_ostream &O) { 1577 typedef std::make_signed_t<T> SignedT; 1578 typedef std::make_unsigned_t<T> UnsignedT; 1579 1580 uint64_t Val = MI->getOperand(OpNum).getImm(); 1581 UnsignedT PrintVal = AArch64_AM::decodeLogicalImmediate(Val, 64); 1582 1583 // Prefer the default format for 16bit values, hex otherwise. 1584 if ((int16_t)PrintVal == (SignedT)PrintVal) 1585 printImmSVE((T)PrintVal, O); 1586 else if ((uint16_t)PrintVal == PrintVal) 1587 printImmSVE(PrintVal, O); 1588 else 1589 O << '#' << formatHex((uint64_t)PrintVal); 1590 } 1591 1592 template <int Width> 1593 void AArch64InstPrinter::printZPRasFPR(const MCInst *MI, unsigned OpNum, 1594 const MCSubtargetInfo &STI, 1595 raw_ostream &O) { 1596 unsigned Base; 1597 switch (Width) { 1598 case 8: Base = AArch64::B0; break; 1599 case 16: Base = AArch64::H0; break; 1600 case 32: Base = AArch64::S0; break; 1601 case 64: Base = AArch64::D0; break; 1602 case 128: Base = AArch64::Q0; break; 1603 default: 1604 llvm_unreachable("Unsupported width"); 1605 } 1606 unsigned Reg = MI->getOperand(OpNum).getReg(); 1607 O << getRegisterName(Reg - AArch64::Z0 + Base); 1608 } 1609 1610 template <unsigned ImmIs0, unsigned ImmIs1> 1611 void AArch64InstPrinter::printExactFPImm(const MCInst *MI, unsigned OpNum, 1612 const MCSubtargetInfo &STI, 1613 raw_ostream &O) { 1614 auto *Imm0Desc = AArch64ExactFPImm::lookupExactFPImmByEnum(ImmIs0); 1615 auto *Imm1Desc = AArch64ExactFPImm::lookupExactFPImmByEnum(ImmIs1); 1616 unsigned Val = MI->getOperand(OpNum).getImm(); 1617 O << "#" << (Val ? Imm1Desc->Repr : Imm0Desc->Repr); 1618 } 1619 1620 void AArch64InstPrinter::printGPR64as32(const MCInst *MI, unsigned OpNum, 1621 const MCSubtargetInfo &STI, 1622 raw_ostream &O) { 1623 unsigned Reg = MI->getOperand(OpNum).getReg(); 1624 O << getRegisterName(getWRegFromXReg(Reg)); 1625 } 1626