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