1 //===- X86RecognizableInstr.cpp - Disassembler instruction spec --*- C++ -*-===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 // 10 // This file is part of the X86 Disassembler Emitter. 11 // It contains the implementation of a single recognizable instruction. 12 // Documentation for the disassembler emitter in general can be found in 13 // X86DisasemblerEmitter.h. 14 // 15 //===----------------------------------------------------------------------===// 16 17 #include "X86RecognizableInstr.h" 18 #include "X86DisassemblerShared.h" 19 #include "X86ModRMFilters.h" 20 #include "llvm/Support/ErrorHandling.h" 21 #include <string> 22 23 using namespace llvm; 24 25 #define MRM_MAPPING \ 26 MAP(C0, 32) \ 27 MAP(C1, 33) \ 28 MAP(C2, 34) \ 29 MAP(C3, 35) \ 30 MAP(C4, 36) \ 31 MAP(C5, 37) \ 32 MAP(C6, 38) \ 33 MAP(C7, 39) \ 34 MAP(C8, 40) \ 35 MAP(C9, 41) \ 36 MAP(CA, 42) \ 37 MAP(CB, 43) \ 38 MAP(CC, 44) \ 39 MAP(CD, 45) \ 40 MAP(CE, 46) \ 41 MAP(CF, 47) \ 42 MAP(D0, 48) \ 43 MAP(D1, 49) \ 44 MAP(D2, 50) \ 45 MAP(D3, 51) \ 46 MAP(D4, 52) \ 47 MAP(D5, 53) \ 48 MAP(D6, 54) \ 49 MAP(D7, 55) \ 50 MAP(D8, 56) \ 51 MAP(D9, 57) \ 52 MAP(DA, 58) \ 53 MAP(DB, 59) \ 54 MAP(DC, 60) \ 55 MAP(DD, 61) \ 56 MAP(DE, 62) \ 57 MAP(DF, 63) \ 58 MAP(E0, 64) \ 59 MAP(E1, 65) \ 60 MAP(E2, 66) \ 61 MAP(E3, 67) \ 62 MAP(E4, 68) \ 63 MAP(E5, 69) \ 64 MAP(E6, 70) \ 65 MAP(E7, 71) \ 66 MAP(E8, 72) \ 67 MAP(E9, 73) \ 68 MAP(EA, 74) \ 69 MAP(EB, 75) \ 70 MAP(EC, 76) \ 71 MAP(ED, 77) \ 72 MAP(EE, 78) \ 73 MAP(EF, 79) \ 74 MAP(F0, 80) \ 75 MAP(F1, 81) \ 76 MAP(F2, 82) \ 77 MAP(F3, 83) \ 78 MAP(F4, 84) \ 79 MAP(F5, 85) \ 80 MAP(F6, 86) \ 81 MAP(F7, 87) \ 82 MAP(F8, 88) \ 83 MAP(F9, 89) \ 84 MAP(FA, 90) \ 85 MAP(FB, 91) \ 86 MAP(FC, 92) \ 87 MAP(FD, 93) \ 88 MAP(FE, 94) \ 89 MAP(FF, 95) 90 91 // A clone of X86 since we can't depend on something that is generated. 92 namespace X86Local { 93 enum { 94 Pseudo = 0, 95 RawFrm = 1, 96 AddRegFrm = 2, 97 MRMDestReg = 3, 98 MRMDestMem = 4, 99 MRMSrcReg = 5, 100 MRMSrcMem = 6, 101 RawFrmMemOffs = 7, 102 RawFrmSrc = 8, 103 RawFrmDst = 9, 104 RawFrmDstSrc = 10, 105 RawFrmImm8 = 11, 106 RawFrmImm16 = 12, 107 MRMXr = 14, MRMXm = 15, 108 MRM0r = 16, MRM1r = 17, MRM2r = 18, MRM3r = 19, 109 MRM4r = 20, MRM5r = 21, MRM6r = 22, MRM7r = 23, 110 MRM0m = 24, MRM1m = 25, MRM2m = 26, MRM3m = 27, 111 MRM4m = 28, MRM5m = 29, MRM6m = 30, MRM7m = 31, 112 #define MAP(from, to) MRM_##from = to, 113 MRM_MAPPING 114 #undef MAP 115 lastMRM 116 }; 117 118 enum { 119 OB = 0, TB = 1, T8 = 2, TA = 3, XOP8 = 4, XOP9 = 5, XOPA = 6 120 }; 121 122 enum { 123 PS = 1, PD = 2, XS = 3, XD = 4 124 }; 125 126 enum { 127 VEX = 1, XOP = 2, EVEX = 3 128 }; 129 130 enum { 131 OpSize16 = 1, OpSize32 = 2 132 }; 133 134 enum { 135 AdSize16 = 1, AdSize32 = 2, AdSize64 = 3 136 }; 137 } 138 139 using namespace X86Disassembler; 140 141 /// isRegFormat - Indicates whether a particular form requires the Mod field of 142 /// the ModR/M byte to be 0b11. 143 /// 144 /// @param form - The form of the instruction. 145 /// @return - true if the form implies that Mod must be 0b11, false 146 /// otherwise. 147 static bool isRegFormat(uint8_t form) { 148 return (form == X86Local::MRMDestReg || 149 form == X86Local::MRMSrcReg || 150 form == X86Local::MRMXr || 151 (form >= X86Local::MRM0r && form <= X86Local::MRM7r)); 152 } 153 154 /// byteFromBitsInit - Extracts a value at most 8 bits in width from a BitsInit. 155 /// Useful for switch statements and the like. 156 /// 157 /// @param init - A reference to the BitsInit to be decoded. 158 /// @return - The field, with the first bit in the BitsInit as the lowest 159 /// order bit. 160 static uint8_t byteFromBitsInit(BitsInit &init) { 161 int width = init.getNumBits(); 162 163 assert(width <= 8 && "Field is too large for uint8_t!"); 164 165 int index; 166 uint8_t mask = 0x01; 167 168 uint8_t ret = 0; 169 170 for (index = 0; index < width; index++) { 171 if (static_cast<BitInit*>(init.getBit(index))->getValue()) 172 ret |= mask; 173 174 mask <<= 1; 175 } 176 177 return ret; 178 } 179 180 /// byteFromRec - Extract a value at most 8 bits in with from a Record given the 181 /// name of the field. 182 /// 183 /// @param rec - The record from which to extract the value. 184 /// @param name - The name of the field in the record. 185 /// @return - The field, as translated by byteFromBitsInit(). 186 static uint8_t byteFromRec(const Record* rec, const std::string &name) { 187 BitsInit* bits = rec->getValueAsBitsInit(name); 188 return byteFromBitsInit(*bits); 189 } 190 191 RecognizableInstr::RecognizableInstr(DisassemblerTables &tables, 192 const CodeGenInstruction &insn, 193 InstrUID uid) { 194 UID = uid; 195 196 Rec = insn.TheDef; 197 Name = Rec->getName(); 198 Spec = &tables.specForUID(UID); 199 200 if (!Rec->isSubClassOf("X86Inst")) { 201 ShouldBeEmitted = false; 202 return; 203 } 204 205 OpPrefix = byteFromRec(Rec, "OpPrefixBits"); 206 OpMap = byteFromRec(Rec, "OpMapBits"); 207 Opcode = byteFromRec(Rec, "Opcode"); 208 Form = byteFromRec(Rec, "FormBits"); 209 Encoding = byteFromRec(Rec, "OpEncBits"); 210 211 OpSize = byteFromRec(Rec, "OpSizeBits"); 212 AdSize = byteFromRec(Rec, "AdSizeBits"); 213 HasREX_WPrefix = Rec->getValueAsBit("hasREX_WPrefix"); 214 HasVEX_4V = Rec->getValueAsBit("hasVEX_4V"); 215 HasVEX_4VOp3 = Rec->getValueAsBit("hasVEX_4VOp3"); 216 HasVEX_WPrefix = Rec->getValueAsBit("hasVEX_WPrefix"); 217 HasMemOp4Prefix = Rec->getValueAsBit("hasMemOp4Prefix"); 218 IgnoresVEX_L = Rec->getValueAsBit("ignoresVEX_L"); 219 HasEVEX_L2Prefix = Rec->getValueAsBit("hasEVEX_L2"); 220 HasEVEX_K = Rec->getValueAsBit("hasEVEX_K"); 221 HasEVEX_KZ = Rec->getValueAsBit("hasEVEX_Z"); 222 HasEVEX_B = Rec->getValueAsBit("hasEVEX_B"); 223 IsCodeGenOnly = Rec->getValueAsBit("isCodeGenOnly"); 224 ForceDisassemble = Rec->getValueAsBit("ForceDisassemble"); 225 CD8_Scale = byteFromRec(Rec, "CD8_Scale"); 226 227 Name = Rec->getName(); 228 AsmString = Rec->getValueAsString("AsmString"); 229 230 Operands = &insn.Operands.OperandList; 231 232 HasVEX_LPrefix = Rec->getValueAsBit("hasVEX_L"); 233 234 // Check for 64-bit inst which does not require REX 235 Is32Bit = false; 236 Is64Bit = false; 237 // FIXME: Is there some better way to check for In64BitMode? 238 std::vector<Record*> Predicates = Rec->getValueAsListOfDefs("Predicates"); 239 for (unsigned i = 0, e = Predicates.size(); i != e; ++i) { 240 if (Predicates[i]->getName().find("Not64Bit") != Name.npos || 241 Predicates[i]->getName().find("In32Bit") != Name.npos) { 242 Is32Bit = true; 243 break; 244 } 245 if (Predicates[i]->getName().find("In64Bit") != Name.npos) { 246 Is64Bit = true; 247 break; 248 } 249 } 250 251 if (Form == X86Local::Pseudo || (IsCodeGenOnly && !ForceDisassemble)) { 252 ShouldBeEmitted = false; 253 return; 254 } 255 256 // Special case since there is no attribute class for 64-bit and VEX 257 if (Name == "VMASKMOVDQU64") { 258 ShouldBeEmitted = false; 259 return; 260 } 261 262 ShouldBeEmitted = true; 263 } 264 265 void RecognizableInstr::processInstr(DisassemblerTables &tables, 266 const CodeGenInstruction &insn, 267 InstrUID uid) 268 { 269 // Ignore "asm parser only" instructions. 270 if (insn.TheDef->getValueAsBit("isAsmParserOnly")) 271 return; 272 273 RecognizableInstr recogInstr(tables, insn, uid); 274 275 if (recogInstr.shouldBeEmitted()) { 276 recogInstr.emitInstructionSpecifier(); 277 recogInstr.emitDecodePath(tables); 278 } 279 } 280 281 #define EVEX_KB(n) (HasEVEX_KZ && HasEVEX_B ? n##_KZ_B : \ 282 (HasEVEX_K && HasEVEX_B ? n##_K_B : \ 283 (HasEVEX_KZ ? n##_KZ : \ 284 (HasEVEX_K? n##_K : (HasEVEX_B ? n##_B : n))))) 285 286 InstructionContext RecognizableInstr::insnContext() const { 287 InstructionContext insnContext; 288 289 if (Encoding == X86Local::EVEX) { 290 if (HasVEX_LPrefix && HasEVEX_L2Prefix) { 291 errs() << "Don't support VEX.L if EVEX_L2 is enabled: " << Name << "\n"; 292 llvm_unreachable("Don't support VEX.L if EVEX_L2 is enabled"); 293 } 294 // VEX_L & VEX_W 295 if (HasVEX_LPrefix && HasVEX_WPrefix) { 296 if (OpPrefix == X86Local::PD) 297 insnContext = EVEX_KB(IC_EVEX_L_W_OPSIZE); 298 else if (OpPrefix == X86Local::XS) 299 insnContext = EVEX_KB(IC_EVEX_L_W_XS); 300 else if (OpPrefix == X86Local::XD) 301 insnContext = EVEX_KB(IC_EVEX_L_W_XD); 302 else if (OpPrefix == X86Local::PS) 303 insnContext = EVEX_KB(IC_EVEX_L_W); 304 else { 305 errs() << "Instruction does not use a prefix: " << Name << "\n"; 306 llvm_unreachable("Invalid prefix"); 307 } 308 } else if (HasVEX_LPrefix) { 309 // VEX_L 310 if (OpPrefix == X86Local::PD) 311 insnContext = EVEX_KB(IC_EVEX_L_OPSIZE); 312 else if (OpPrefix == X86Local::XS) 313 insnContext = EVEX_KB(IC_EVEX_L_XS); 314 else if (OpPrefix == X86Local::XD) 315 insnContext = EVEX_KB(IC_EVEX_L_XD); 316 else if (OpPrefix == X86Local::PS) 317 insnContext = EVEX_KB(IC_EVEX_L); 318 else { 319 errs() << "Instruction does not use a prefix: " << Name << "\n"; 320 llvm_unreachable("Invalid prefix"); 321 } 322 } 323 else if (HasEVEX_L2Prefix && HasVEX_WPrefix) { 324 // EVEX_L2 & VEX_W 325 if (OpPrefix == X86Local::PD) 326 insnContext = EVEX_KB(IC_EVEX_L2_W_OPSIZE); 327 else if (OpPrefix == X86Local::XS) 328 insnContext = EVEX_KB(IC_EVEX_L2_W_XS); 329 else if (OpPrefix == X86Local::XD) 330 insnContext = EVEX_KB(IC_EVEX_L2_W_XD); 331 else if (OpPrefix == X86Local::PS) 332 insnContext = EVEX_KB(IC_EVEX_L2_W); 333 else { 334 errs() << "Instruction does not use a prefix: " << Name << "\n"; 335 llvm_unreachable("Invalid prefix"); 336 } 337 } else if (HasEVEX_L2Prefix) { 338 // EVEX_L2 339 if (OpPrefix == X86Local::PD) 340 insnContext = EVEX_KB(IC_EVEX_L2_OPSIZE); 341 else if (OpPrefix == X86Local::XD) 342 insnContext = EVEX_KB(IC_EVEX_L2_XD); 343 else if (OpPrefix == X86Local::XS) 344 insnContext = EVEX_KB(IC_EVEX_L2_XS); 345 else if (OpPrefix == X86Local::PS) 346 insnContext = EVEX_KB(IC_EVEX_L2); 347 else { 348 errs() << "Instruction does not use a prefix: " << Name << "\n"; 349 llvm_unreachable("Invalid prefix"); 350 } 351 } 352 else if (HasVEX_WPrefix) { 353 // VEX_W 354 if (OpPrefix == X86Local::PD) 355 insnContext = EVEX_KB(IC_EVEX_W_OPSIZE); 356 else if (OpPrefix == X86Local::XS) 357 insnContext = EVEX_KB(IC_EVEX_W_XS); 358 else if (OpPrefix == X86Local::XD) 359 insnContext = EVEX_KB(IC_EVEX_W_XD); 360 else if (OpPrefix == X86Local::PS) 361 insnContext = EVEX_KB(IC_EVEX_W); 362 else { 363 errs() << "Instruction does not use a prefix: " << Name << "\n"; 364 llvm_unreachable("Invalid prefix"); 365 } 366 } 367 // No L, no W 368 else if (OpPrefix == X86Local::PD) 369 insnContext = EVEX_KB(IC_EVEX_OPSIZE); 370 else if (OpPrefix == X86Local::XD) 371 insnContext = EVEX_KB(IC_EVEX_XD); 372 else if (OpPrefix == X86Local::XS) 373 insnContext = EVEX_KB(IC_EVEX_XS); 374 else 375 insnContext = EVEX_KB(IC_EVEX); 376 /// eof EVEX 377 } else if (Encoding == X86Local::VEX || Encoding == X86Local::XOP) { 378 if (HasVEX_LPrefix && HasVEX_WPrefix) { 379 if (OpPrefix == X86Local::PD) 380 insnContext = IC_VEX_L_W_OPSIZE; 381 else if (OpPrefix == X86Local::XS) 382 insnContext = IC_VEX_L_W_XS; 383 else if (OpPrefix == X86Local::XD) 384 insnContext = IC_VEX_L_W_XD; 385 else if (OpPrefix == X86Local::PS) 386 insnContext = IC_VEX_L_W; 387 else { 388 errs() << "Instruction does not use a prefix: " << Name << "\n"; 389 llvm_unreachable("Invalid prefix"); 390 } 391 } else if (OpPrefix == X86Local::PD && HasVEX_LPrefix) 392 insnContext = IC_VEX_L_OPSIZE; 393 else if (OpPrefix == X86Local::PD && HasVEX_WPrefix) 394 insnContext = IC_VEX_W_OPSIZE; 395 else if (OpPrefix == X86Local::PD) 396 insnContext = IC_VEX_OPSIZE; 397 else if (HasVEX_LPrefix && OpPrefix == X86Local::XS) 398 insnContext = IC_VEX_L_XS; 399 else if (HasVEX_LPrefix && OpPrefix == X86Local::XD) 400 insnContext = IC_VEX_L_XD; 401 else if (HasVEX_WPrefix && OpPrefix == X86Local::XS) 402 insnContext = IC_VEX_W_XS; 403 else if (HasVEX_WPrefix && OpPrefix == X86Local::XD) 404 insnContext = IC_VEX_W_XD; 405 else if (HasVEX_WPrefix && OpPrefix == X86Local::PS) 406 insnContext = IC_VEX_W; 407 else if (HasVEX_LPrefix && OpPrefix == X86Local::PS) 408 insnContext = IC_VEX_L; 409 else if (OpPrefix == X86Local::XD) 410 insnContext = IC_VEX_XD; 411 else if (OpPrefix == X86Local::XS) 412 insnContext = IC_VEX_XS; 413 else if (OpPrefix == X86Local::PS) 414 insnContext = IC_VEX; 415 else { 416 errs() << "Instruction does not use a prefix: " << Name << "\n"; 417 llvm_unreachable("Invalid prefix"); 418 } 419 } else if (Is64Bit || HasREX_WPrefix || AdSize == X86Local::AdSize64) { 420 if (HasREX_WPrefix && (OpSize == X86Local::OpSize16 || OpPrefix == X86Local::PD)) 421 insnContext = IC_64BIT_REXW_OPSIZE; 422 else if (HasREX_WPrefix && AdSize == X86Local::AdSize32) 423 insnContext = IC_64BIT_REXW_ADSIZE; 424 else if (OpSize == X86Local::OpSize16 && OpPrefix == X86Local::XD) 425 insnContext = IC_64BIT_XD_OPSIZE; 426 else if (OpSize == X86Local::OpSize16 && OpPrefix == X86Local::XS) 427 insnContext = IC_64BIT_XS_OPSIZE; 428 else if (OpSize == X86Local::OpSize16 && AdSize == X86Local::AdSize32) 429 insnContext = IC_64BIT_OPSIZE_ADSIZE; 430 else if (OpSize == X86Local::OpSize16 || OpPrefix == X86Local::PD) 431 insnContext = IC_64BIT_OPSIZE; 432 else if (AdSize == X86Local::AdSize32) 433 insnContext = IC_64BIT_ADSIZE; 434 else if (HasREX_WPrefix && OpPrefix == X86Local::XS) 435 insnContext = IC_64BIT_REXW_XS; 436 else if (HasREX_WPrefix && OpPrefix == X86Local::XD) 437 insnContext = IC_64BIT_REXW_XD; 438 else if (OpPrefix == X86Local::XD) 439 insnContext = IC_64BIT_XD; 440 else if (OpPrefix == X86Local::XS) 441 insnContext = IC_64BIT_XS; 442 else if (HasREX_WPrefix) 443 insnContext = IC_64BIT_REXW; 444 else 445 insnContext = IC_64BIT; 446 } else { 447 if (OpSize == X86Local::OpSize16 && OpPrefix == X86Local::XD) 448 insnContext = IC_XD_OPSIZE; 449 else if (OpSize == X86Local::OpSize16 && OpPrefix == X86Local::XS) 450 insnContext = IC_XS_OPSIZE; 451 else if (OpSize == X86Local::OpSize16 && AdSize == X86Local::AdSize16) 452 insnContext = IC_OPSIZE_ADSIZE; 453 else if (OpSize == X86Local::OpSize16 || OpPrefix == X86Local::PD) 454 insnContext = IC_OPSIZE; 455 else if (AdSize == X86Local::AdSize16) 456 insnContext = IC_ADSIZE; 457 else if (OpPrefix == X86Local::XD) 458 insnContext = IC_XD; 459 else if (OpPrefix == X86Local::XS) 460 insnContext = IC_XS; 461 else 462 insnContext = IC; 463 } 464 465 return insnContext; 466 } 467 468 void RecognizableInstr::adjustOperandEncoding(OperandEncoding &encoding) { 469 // The scaling factor for AVX512 compressed displacement encoding is an 470 // instruction attribute. Adjust the ModRM encoding type to include the 471 // scale for compressed displacement. 472 if (encoding != ENCODING_RM || CD8_Scale == 0) 473 return; 474 encoding = (OperandEncoding)(encoding + Log2_32(CD8_Scale)); 475 assert(encoding <= ENCODING_RM_CD64 && "Invalid CDisp scaling"); 476 } 477 478 void RecognizableInstr::handleOperand(bool optional, unsigned &operandIndex, 479 unsigned &physicalOperandIndex, 480 unsigned &numPhysicalOperands, 481 const unsigned *operandMapping, 482 OperandEncoding (*encodingFromString) 483 (const std::string&, 484 uint8_t OpSize)) { 485 if (optional) { 486 if (physicalOperandIndex >= numPhysicalOperands) 487 return; 488 } else { 489 assert(physicalOperandIndex < numPhysicalOperands); 490 } 491 492 while (operandMapping[operandIndex] != operandIndex) { 493 Spec->operands[operandIndex].encoding = ENCODING_DUP; 494 Spec->operands[operandIndex].type = 495 (OperandType)(TYPE_DUP0 + operandMapping[operandIndex]); 496 ++operandIndex; 497 } 498 499 const std::string &typeName = (*Operands)[operandIndex].Rec->getName(); 500 501 OperandEncoding encoding = encodingFromString(typeName, OpSize); 502 // Adjust the encoding type for an operand based on the instruction. 503 adjustOperandEncoding(encoding); 504 Spec->operands[operandIndex].encoding = encoding; 505 Spec->operands[operandIndex].type = typeFromString(typeName, 506 HasREX_WPrefix, OpSize); 507 508 ++operandIndex; 509 ++physicalOperandIndex; 510 } 511 512 void RecognizableInstr::emitInstructionSpecifier() { 513 Spec->name = Name; 514 515 Spec->insnContext = insnContext(); 516 517 const std::vector<CGIOperandList::OperandInfo> &OperandList = *Operands; 518 519 unsigned numOperands = OperandList.size(); 520 unsigned numPhysicalOperands = 0; 521 522 // operandMapping maps from operands in OperandList to their originals. 523 // If operandMapping[i] != i, then the entry is a duplicate. 524 unsigned operandMapping[X86_MAX_OPERANDS]; 525 assert(numOperands <= X86_MAX_OPERANDS && "X86_MAX_OPERANDS is not large enough"); 526 527 for (unsigned operandIndex = 0; operandIndex < numOperands; ++operandIndex) { 528 if (!OperandList[operandIndex].Constraints.empty()) { 529 const CGIOperandList::ConstraintInfo &Constraint = 530 OperandList[operandIndex].Constraints[0]; 531 if (Constraint.isTied()) { 532 operandMapping[operandIndex] = operandIndex; 533 operandMapping[Constraint.getTiedOperand()] = operandIndex; 534 } else { 535 ++numPhysicalOperands; 536 operandMapping[operandIndex] = operandIndex; 537 } 538 } else { 539 ++numPhysicalOperands; 540 operandMapping[operandIndex] = operandIndex; 541 } 542 } 543 544 #define HANDLE_OPERAND(class) \ 545 handleOperand(false, \ 546 operandIndex, \ 547 physicalOperandIndex, \ 548 numPhysicalOperands, \ 549 operandMapping, \ 550 class##EncodingFromString); 551 552 #define HANDLE_OPTIONAL(class) \ 553 handleOperand(true, \ 554 operandIndex, \ 555 physicalOperandIndex, \ 556 numPhysicalOperands, \ 557 operandMapping, \ 558 class##EncodingFromString); 559 560 // operandIndex should always be < numOperands 561 unsigned operandIndex = 0; 562 // physicalOperandIndex should always be < numPhysicalOperands 563 unsigned physicalOperandIndex = 0; 564 565 // Given the set of prefix bits, how many additional operands does the 566 // instruction have? 567 unsigned additionalOperands = 0; 568 if (HasVEX_4V || HasVEX_4VOp3) 569 ++additionalOperands; 570 if (HasEVEX_K) 571 ++additionalOperands; 572 573 switch (Form) { 574 default: llvm_unreachable("Unhandled form"); 575 case X86Local::RawFrmSrc: 576 HANDLE_OPERAND(relocation); 577 return; 578 case X86Local::RawFrmDst: 579 HANDLE_OPERAND(relocation); 580 return; 581 case X86Local::RawFrmDstSrc: 582 HANDLE_OPERAND(relocation); 583 HANDLE_OPERAND(relocation); 584 return; 585 case X86Local::RawFrm: 586 // Operand 1 (optional) is an address or immediate. 587 // Operand 2 (optional) is an immediate. 588 assert(numPhysicalOperands <= 2 && 589 "Unexpected number of operands for RawFrm"); 590 HANDLE_OPTIONAL(relocation) 591 HANDLE_OPTIONAL(immediate) 592 break; 593 case X86Local::RawFrmMemOffs: 594 // Operand 1 is an address. 595 HANDLE_OPERAND(relocation); 596 break; 597 case X86Local::AddRegFrm: 598 // Operand 1 is added to the opcode. 599 // Operand 2 (optional) is an address. 600 assert(numPhysicalOperands >= 1 && numPhysicalOperands <= 2 && 601 "Unexpected number of operands for AddRegFrm"); 602 HANDLE_OPERAND(opcodeModifier) 603 HANDLE_OPTIONAL(relocation) 604 break; 605 case X86Local::MRMDestReg: 606 // Operand 1 is a register operand in the R/M field. 607 // - In AVX512 there may be a mask operand here - 608 // Operand 2 is a register operand in the Reg/Opcode field. 609 // - In AVX, there is a register operand in the VEX.vvvv field here - 610 // Operand 3 (optional) is an immediate. 611 assert(numPhysicalOperands >= 2 + additionalOperands && 612 numPhysicalOperands <= 3 + additionalOperands && 613 "Unexpected number of operands for MRMDestRegFrm"); 614 615 HANDLE_OPERAND(rmRegister) 616 if (HasEVEX_K) 617 HANDLE_OPERAND(writemaskRegister) 618 619 if (HasVEX_4V) 620 // FIXME: In AVX, the register below becomes the one encoded 621 // in ModRMVEX and the one above the one in the VEX.VVVV field 622 HANDLE_OPERAND(vvvvRegister) 623 624 HANDLE_OPERAND(roRegister) 625 HANDLE_OPTIONAL(immediate) 626 break; 627 case X86Local::MRMDestMem: 628 // Operand 1 is a memory operand (possibly SIB-extended) 629 // Operand 2 is a register operand in the Reg/Opcode field. 630 // - In AVX, there is a register operand in the VEX.vvvv field here - 631 // Operand 3 (optional) is an immediate. 632 assert(numPhysicalOperands >= 2 + additionalOperands && 633 numPhysicalOperands <= 3 + additionalOperands && 634 "Unexpected number of operands for MRMDestMemFrm with VEX_4V"); 635 636 HANDLE_OPERAND(memory) 637 638 if (HasEVEX_K) 639 HANDLE_OPERAND(writemaskRegister) 640 641 if (HasVEX_4V) 642 // FIXME: In AVX, the register below becomes the one encoded 643 // in ModRMVEX and the one above the one in the VEX.VVVV field 644 HANDLE_OPERAND(vvvvRegister) 645 646 HANDLE_OPERAND(roRegister) 647 HANDLE_OPTIONAL(immediate) 648 break; 649 case X86Local::MRMSrcReg: 650 // Operand 1 is a register operand in the Reg/Opcode field. 651 // Operand 2 is a register operand in the R/M field. 652 // - In AVX, there is a register operand in the VEX.vvvv field here - 653 // Operand 3 (optional) is an immediate. 654 // Operand 4 (optional) is an immediate. 655 656 assert(numPhysicalOperands >= 2 + additionalOperands && 657 numPhysicalOperands <= 4 + additionalOperands && 658 "Unexpected number of operands for MRMSrcRegFrm"); 659 660 HANDLE_OPERAND(roRegister) 661 662 if (HasEVEX_K) 663 HANDLE_OPERAND(writemaskRegister) 664 665 if (HasVEX_4V) 666 // FIXME: In AVX, the register below becomes the one encoded 667 // in ModRMVEX and the one above the one in the VEX.VVVV field 668 HANDLE_OPERAND(vvvvRegister) 669 670 if (HasMemOp4Prefix) 671 HANDLE_OPERAND(immediate) 672 673 HANDLE_OPERAND(rmRegister) 674 675 if (HasVEX_4VOp3) 676 HANDLE_OPERAND(vvvvRegister) 677 678 if (!HasMemOp4Prefix) 679 HANDLE_OPTIONAL(immediate) 680 HANDLE_OPTIONAL(immediate) // above might be a register in 7:4 681 HANDLE_OPTIONAL(immediate) 682 break; 683 case X86Local::MRMSrcMem: 684 // Operand 1 is a register operand in the Reg/Opcode field. 685 // Operand 2 is a memory operand (possibly SIB-extended) 686 // - In AVX, there is a register operand in the VEX.vvvv field here - 687 // Operand 3 (optional) is an immediate. 688 689 assert(numPhysicalOperands >= 2 + additionalOperands && 690 numPhysicalOperands <= 4 + additionalOperands && 691 "Unexpected number of operands for MRMSrcMemFrm"); 692 693 HANDLE_OPERAND(roRegister) 694 695 if (HasEVEX_K) 696 HANDLE_OPERAND(writemaskRegister) 697 698 if (HasVEX_4V) 699 // FIXME: In AVX, the register below becomes the one encoded 700 // in ModRMVEX and the one above the one in the VEX.VVVV field 701 HANDLE_OPERAND(vvvvRegister) 702 703 if (HasMemOp4Prefix) 704 HANDLE_OPERAND(immediate) 705 706 HANDLE_OPERAND(memory) 707 708 if (HasVEX_4VOp3) 709 HANDLE_OPERAND(vvvvRegister) 710 711 if (!HasMemOp4Prefix) 712 HANDLE_OPTIONAL(immediate) 713 HANDLE_OPTIONAL(immediate) // above might be a register in 7:4 714 break; 715 case X86Local::MRMXr: 716 case X86Local::MRM0r: 717 case X86Local::MRM1r: 718 case X86Local::MRM2r: 719 case X86Local::MRM3r: 720 case X86Local::MRM4r: 721 case X86Local::MRM5r: 722 case X86Local::MRM6r: 723 case X86Local::MRM7r: 724 // Operand 1 is a register operand in the R/M field. 725 // Operand 2 (optional) is an immediate or relocation. 726 // Operand 3 (optional) is an immediate. 727 assert(numPhysicalOperands >= 0 + additionalOperands && 728 numPhysicalOperands <= 3 + additionalOperands && 729 "Unexpected number of operands for MRMnr"); 730 731 if (HasVEX_4V) 732 HANDLE_OPERAND(vvvvRegister) 733 734 if (HasEVEX_K) 735 HANDLE_OPERAND(writemaskRegister) 736 HANDLE_OPTIONAL(rmRegister) 737 HANDLE_OPTIONAL(relocation) 738 HANDLE_OPTIONAL(immediate) 739 break; 740 case X86Local::MRMXm: 741 case X86Local::MRM0m: 742 case X86Local::MRM1m: 743 case X86Local::MRM2m: 744 case X86Local::MRM3m: 745 case X86Local::MRM4m: 746 case X86Local::MRM5m: 747 case X86Local::MRM6m: 748 case X86Local::MRM7m: 749 // Operand 1 is a memory operand (possibly SIB-extended) 750 // Operand 2 (optional) is an immediate or relocation. 751 assert(numPhysicalOperands >= 1 + additionalOperands && 752 numPhysicalOperands <= 2 + additionalOperands && 753 "Unexpected number of operands for MRMnm"); 754 755 if (HasVEX_4V) 756 HANDLE_OPERAND(vvvvRegister) 757 if (HasEVEX_K) 758 HANDLE_OPERAND(writemaskRegister) 759 HANDLE_OPERAND(memory) 760 HANDLE_OPTIONAL(relocation) 761 break; 762 case X86Local::RawFrmImm8: 763 // operand 1 is a 16-bit immediate 764 // operand 2 is an 8-bit immediate 765 assert(numPhysicalOperands == 2 && 766 "Unexpected number of operands for X86Local::RawFrmImm8"); 767 HANDLE_OPERAND(immediate) 768 HANDLE_OPERAND(immediate) 769 break; 770 case X86Local::RawFrmImm16: 771 // operand 1 is a 16-bit immediate 772 // operand 2 is a 16-bit immediate 773 HANDLE_OPERAND(immediate) 774 HANDLE_OPERAND(immediate) 775 break; 776 case X86Local::MRM_F8: 777 if (Opcode == 0xc6) { 778 assert(numPhysicalOperands == 1 && 779 "Unexpected number of operands for X86Local::MRM_F8"); 780 HANDLE_OPERAND(immediate) 781 } else if (Opcode == 0xc7) { 782 assert(numPhysicalOperands == 1 && 783 "Unexpected number of operands for X86Local::MRM_F8"); 784 HANDLE_OPERAND(relocation) 785 } 786 break; 787 case X86Local::MRM_C0: case X86Local::MRM_C1: case X86Local::MRM_C2: 788 case X86Local::MRM_C3: case X86Local::MRM_C4: case X86Local::MRM_C8: 789 case X86Local::MRM_C9: case X86Local::MRM_CA: case X86Local::MRM_CB: 790 case X86Local::MRM_CF: case X86Local::MRM_D0: case X86Local::MRM_D1: 791 case X86Local::MRM_D4: case X86Local::MRM_D5: case X86Local::MRM_D6: 792 case X86Local::MRM_D7: case X86Local::MRM_D8: case X86Local::MRM_D9: 793 case X86Local::MRM_DA: case X86Local::MRM_DB: case X86Local::MRM_DC: 794 case X86Local::MRM_DD: case X86Local::MRM_DE: case X86Local::MRM_DF: 795 case X86Local::MRM_E0: case X86Local::MRM_E1: case X86Local::MRM_E2: 796 case X86Local::MRM_E3: case X86Local::MRM_E4: case X86Local::MRM_E5: 797 case X86Local::MRM_E8: case X86Local::MRM_E9: case X86Local::MRM_EA: 798 case X86Local::MRM_EB: case X86Local::MRM_EC: case X86Local::MRM_ED: 799 case X86Local::MRM_EE: case X86Local::MRM_F0: case X86Local::MRM_F1: 800 case X86Local::MRM_F2: case X86Local::MRM_F3: case X86Local::MRM_F4: 801 case X86Local::MRM_F5: case X86Local::MRM_F6: case X86Local::MRM_F7: 802 case X86Local::MRM_F9: case X86Local::MRM_FA: case X86Local::MRM_FB: 803 case X86Local::MRM_FC: case X86Local::MRM_FD: case X86Local::MRM_FE: 804 case X86Local::MRM_FF: 805 // Ignored. 806 break; 807 } 808 809 #undef HANDLE_OPERAND 810 #undef HANDLE_OPTIONAL 811 } 812 813 void RecognizableInstr::emitDecodePath(DisassemblerTables &tables) const { 814 // Special cases where the LLVM tables are not complete 815 816 #define MAP(from, to) \ 817 case X86Local::MRM_##from: 818 819 OpcodeType opcodeType = (OpcodeType)-1; 820 821 ModRMFilter* filter = nullptr; 822 uint8_t opcodeToSet = 0; 823 824 switch (OpMap) { 825 default: llvm_unreachable("Invalid map!"); 826 case X86Local::OB: 827 case X86Local::TB: 828 case X86Local::T8: 829 case X86Local::TA: 830 case X86Local::XOP8: 831 case X86Local::XOP9: 832 case X86Local::XOPA: 833 switch (OpMap) { 834 default: llvm_unreachable("Unexpected map!"); 835 case X86Local::OB: opcodeType = ONEBYTE; break; 836 case X86Local::TB: opcodeType = TWOBYTE; break; 837 case X86Local::T8: opcodeType = THREEBYTE_38; break; 838 case X86Local::TA: opcodeType = THREEBYTE_3A; break; 839 case X86Local::XOP8: opcodeType = XOP8_MAP; break; 840 case X86Local::XOP9: opcodeType = XOP9_MAP; break; 841 case X86Local::XOPA: opcodeType = XOPA_MAP; break; 842 } 843 844 switch (Form) { 845 default: 846 filter = new DumbFilter(); 847 break; 848 case X86Local::MRMDestReg: case X86Local::MRMDestMem: 849 case X86Local::MRMSrcReg: case X86Local::MRMSrcMem: 850 case X86Local::MRMXr: case X86Local::MRMXm: 851 filter = new ModFilter(isRegFormat(Form)); 852 break; 853 case X86Local::MRM0r: case X86Local::MRM1r: 854 case X86Local::MRM2r: case X86Local::MRM3r: 855 case X86Local::MRM4r: case X86Local::MRM5r: 856 case X86Local::MRM6r: case X86Local::MRM7r: 857 filter = new ExtendedFilter(true, Form - X86Local::MRM0r); 858 break; 859 case X86Local::MRM0m: case X86Local::MRM1m: 860 case X86Local::MRM2m: case X86Local::MRM3m: 861 case X86Local::MRM4m: case X86Local::MRM5m: 862 case X86Local::MRM6m: case X86Local::MRM7m: 863 filter = new ExtendedFilter(false, Form - X86Local::MRM0m); 864 break; 865 MRM_MAPPING 866 filter = new ExactFilter(0xC0 + Form - X86Local::MRM_C0); \ 867 break; 868 } // switch (Form) 869 870 opcodeToSet = Opcode; 871 break; 872 } // switch (OpMap) 873 874 unsigned AddressSize = 0; 875 switch (AdSize) { 876 case X86Local::AdSize16: AddressSize = 16; break; 877 case X86Local::AdSize32: AddressSize = 32; break; 878 case X86Local::AdSize64: AddressSize = 64; break; 879 } 880 881 assert(opcodeType != (OpcodeType)-1 && 882 "Opcode type not set"); 883 assert(filter && "Filter not set"); 884 885 if (Form == X86Local::AddRegFrm) { 886 assert(((opcodeToSet & 7) == 0) && 887 "ADDREG_FRM opcode not aligned"); 888 889 uint8_t currentOpcode; 890 891 for (currentOpcode = opcodeToSet; 892 currentOpcode < opcodeToSet + 8; 893 ++currentOpcode) 894 tables.setTableFields(opcodeType, 895 insnContext(), 896 currentOpcode, 897 *filter, 898 UID, Is32Bit, IgnoresVEX_L, AddressSize); 899 } else { 900 tables.setTableFields(opcodeType, 901 insnContext(), 902 opcodeToSet, 903 *filter, 904 UID, Is32Bit, IgnoresVEX_L, AddressSize); 905 } 906 907 delete filter; 908 909 #undef MAP 910 } 911 912 #define TYPE(str, type) if (s == str) return type; 913 OperandType RecognizableInstr::typeFromString(const std::string &s, 914 bool hasREX_WPrefix, 915 uint8_t OpSize) { 916 if(hasREX_WPrefix) { 917 // For instructions with a REX_W prefix, a declared 32-bit register encoding 918 // is special. 919 TYPE("GR32", TYPE_R32) 920 } 921 if(OpSize == X86Local::OpSize16) { 922 // For OpSize16 instructions, a declared 16-bit register or 923 // immediate encoding is special. 924 TYPE("GR16", TYPE_Rv) 925 TYPE("i16imm", TYPE_IMMv) 926 } else if(OpSize == X86Local::OpSize32) { 927 // For OpSize32 instructions, a declared 32-bit register or 928 // immediate encoding is special. 929 TYPE("GR32", TYPE_Rv) 930 } 931 TYPE("i16mem", TYPE_Mv) 932 TYPE("i16imm", TYPE_IMM16) 933 TYPE("i16i8imm", TYPE_IMMv) 934 TYPE("GR16", TYPE_R16) 935 TYPE("i32mem", TYPE_Mv) 936 TYPE("i32imm", TYPE_IMMv) 937 TYPE("i32i8imm", TYPE_IMM32) 938 TYPE("GR32", TYPE_R32) 939 TYPE("GR32orGR64", TYPE_R32) 940 TYPE("i64mem", TYPE_Mv) 941 TYPE("i64i32imm", TYPE_IMM64) 942 TYPE("i64i8imm", TYPE_IMM64) 943 TYPE("GR64", TYPE_R64) 944 TYPE("i8mem", TYPE_M8) 945 TYPE("i8imm", TYPE_IMM8) 946 TYPE("u8imm", TYPE_UIMM8) 947 TYPE("i32u8imm", TYPE_UIMM8) 948 TYPE("GR8", TYPE_R8) 949 TYPE("VR128", TYPE_XMM128) 950 TYPE("VR128X", TYPE_XMM128) 951 TYPE("f128mem", TYPE_M128) 952 TYPE("f256mem", TYPE_M256) 953 TYPE("f512mem", TYPE_M512) 954 TYPE("FR128", TYPE_XMM128) 955 TYPE("FR64", TYPE_XMM64) 956 TYPE("FR64X", TYPE_XMM64) 957 TYPE("f64mem", TYPE_M64FP) 958 TYPE("sdmem", TYPE_M64FP) 959 TYPE("FR32", TYPE_XMM32) 960 TYPE("FR32X", TYPE_XMM32) 961 TYPE("f32mem", TYPE_M32FP) 962 TYPE("ssmem", TYPE_M32FP) 963 TYPE("RST", TYPE_ST) 964 TYPE("i128mem", TYPE_M128) 965 TYPE("i256mem", TYPE_M256) 966 TYPE("i512mem", TYPE_M512) 967 TYPE("i64i32imm_pcrel", TYPE_REL64) 968 TYPE("i16imm_pcrel", TYPE_REL16) 969 TYPE("i32imm_pcrel", TYPE_REL32) 970 TYPE("SSECC", TYPE_IMM3) 971 TYPE("XOPCC", TYPE_IMM3) 972 TYPE("AVXCC", TYPE_IMM5) 973 TYPE("AVX512ICC", TYPE_AVX512ICC) 974 TYPE("AVX512RC", TYPE_IMM32) 975 TYPE("brtarget32", TYPE_RELv) 976 TYPE("brtarget16", TYPE_RELv) 977 TYPE("brtarget8", TYPE_REL8) 978 TYPE("f80mem", TYPE_M80FP) 979 TYPE("lea64_32mem", TYPE_LEA) 980 TYPE("lea64mem", TYPE_LEA) 981 TYPE("VR64", TYPE_MM64) 982 TYPE("i64imm", TYPE_IMMv) 983 TYPE("anymem", TYPE_M) 984 TYPE("opaque32mem", TYPE_M1616) 985 TYPE("opaque48mem", TYPE_M1632) 986 TYPE("opaque80mem", TYPE_M1664) 987 TYPE("opaque512mem", TYPE_M512) 988 TYPE("SEGMENT_REG", TYPE_SEGMENTREG) 989 TYPE("DEBUG_REG", TYPE_DEBUGREG) 990 TYPE("CONTROL_REG", TYPE_CONTROLREG) 991 TYPE("srcidx8", TYPE_SRCIDX8) 992 TYPE("srcidx16", TYPE_SRCIDX16) 993 TYPE("srcidx32", TYPE_SRCIDX32) 994 TYPE("srcidx64", TYPE_SRCIDX64) 995 TYPE("dstidx8", TYPE_DSTIDX8) 996 TYPE("dstidx16", TYPE_DSTIDX16) 997 TYPE("dstidx32", TYPE_DSTIDX32) 998 TYPE("dstidx64", TYPE_DSTIDX64) 999 TYPE("offset16_8", TYPE_MOFFS8) 1000 TYPE("offset16_16", TYPE_MOFFS16) 1001 TYPE("offset16_32", TYPE_MOFFS32) 1002 TYPE("offset32_8", TYPE_MOFFS8) 1003 TYPE("offset32_16", TYPE_MOFFS16) 1004 TYPE("offset32_32", TYPE_MOFFS32) 1005 TYPE("offset32_64", TYPE_MOFFS64) 1006 TYPE("offset64_8", TYPE_MOFFS8) 1007 TYPE("offset64_16", TYPE_MOFFS16) 1008 TYPE("offset64_32", TYPE_MOFFS32) 1009 TYPE("offset64_64", TYPE_MOFFS64) 1010 TYPE("VR256", TYPE_XMM256) 1011 TYPE("VR256X", TYPE_XMM256) 1012 TYPE("VR512", TYPE_XMM512) 1013 TYPE("VK1", TYPE_VK1) 1014 TYPE("VK1WM", TYPE_VK1) 1015 TYPE("VK2", TYPE_VK2) 1016 TYPE("VK2WM", TYPE_VK2) 1017 TYPE("VK4", TYPE_VK4) 1018 TYPE("VK4WM", TYPE_VK4) 1019 TYPE("VK8", TYPE_VK8) 1020 TYPE("VK8WM", TYPE_VK8) 1021 TYPE("VK16", TYPE_VK16) 1022 TYPE("VK16WM", TYPE_VK16) 1023 TYPE("VK32", TYPE_VK32) 1024 TYPE("VK32WM", TYPE_VK32) 1025 TYPE("VK64", TYPE_VK64) 1026 TYPE("VK64WM", TYPE_VK64) 1027 TYPE("GR16_NOAX", TYPE_Rv) 1028 TYPE("GR32_NOAX", TYPE_Rv) 1029 TYPE("GR64_NOAX", TYPE_R64) 1030 TYPE("vx32mem", TYPE_M32) 1031 TYPE("vx32xmem", TYPE_M32) 1032 TYPE("vy32mem", TYPE_M32) 1033 TYPE("vy32xmem", TYPE_M32) 1034 TYPE("vz32mem", TYPE_M32) 1035 TYPE("vx64mem", TYPE_M64) 1036 TYPE("vx64xmem", TYPE_M64) 1037 TYPE("vy64mem", TYPE_M64) 1038 TYPE("vy64xmem", TYPE_M64) 1039 TYPE("vz64mem", TYPE_M64) 1040 TYPE("BNDR", TYPE_BNDR) 1041 errs() << "Unhandled type string " << s << "\n"; 1042 llvm_unreachable("Unhandled type string"); 1043 } 1044 #undef TYPE 1045 1046 #define ENCODING(str, encoding) if (s == str) return encoding; 1047 OperandEncoding 1048 RecognizableInstr::immediateEncodingFromString(const std::string &s, 1049 uint8_t OpSize) { 1050 if(OpSize != X86Local::OpSize16) { 1051 // For instructions without an OpSize prefix, a declared 16-bit register or 1052 // immediate encoding is special. 1053 ENCODING("i16imm", ENCODING_IW) 1054 } 1055 ENCODING("i32i8imm", ENCODING_IB) 1056 ENCODING("SSECC", ENCODING_IB) 1057 ENCODING("XOPCC", ENCODING_IB) 1058 ENCODING("AVXCC", ENCODING_IB) 1059 ENCODING("AVX512ICC", ENCODING_IB) 1060 ENCODING("AVX512RC", ENCODING_IB) 1061 ENCODING("i16imm", ENCODING_Iv) 1062 ENCODING("i16i8imm", ENCODING_IB) 1063 ENCODING("i32imm", ENCODING_Iv) 1064 ENCODING("i64i32imm", ENCODING_ID) 1065 ENCODING("i64i8imm", ENCODING_IB) 1066 ENCODING("i8imm", ENCODING_IB) 1067 ENCODING("u8imm", ENCODING_IB) 1068 ENCODING("i32u8imm", ENCODING_IB) 1069 // This is not a typo. Instructions like BLENDVPD put 1070 // register IDs in 8-bit immediates nowadays. 1071 ENCODING("FR32", ENCODING_IB) 1072 ENCODING("FR64", ENCODING_IB) 1073 ENCODING("FR128", ENCODING_IB) 1074 ENCODING("VR128", ENCODING_IB) 1075 ENCODING("VR256", ENCODING_IB) 1076 ENCODING("FR32X", ENCODING_IB) 1077 ENCODING("FR64X", ENCODING_IB) 1078 ENCODING("VR128X", ENCODING_IB) 1079 ENCODING("VR256X", ENCODING_IB) 1080 ENCODING("VR512", ENCODING_IB) 1081 errs() << "Unhandled immediate encoding " << s << "\n"; 1082 llvm_unreachable("Unhandled immediate encoding"); 1083 } 1084 1085 OperandEncoding 1086 RecognizableInstr::rmRegisterEncodingFromString(const std::string &s, 1087 uint8_t OpSize) { 1088 ENCODING("RST", ENCODING_FP) 1089 ENCODING("GR16", ENCODING_RM) 1090 ENCODING("GR32", ENCODING_RM) 1091 ENCODING("GR32orGR64", ENCODING_RM) 1092 ENCODING("GR64", ENCODING_RM) 1093 ENCODING("GR8", ENCODING_RM) 1094 ENCODING("VR128", ENCODING_RM) 1095 ENCODING("VR128X", ENCODING_RM) 1096 ENCODING("FR128", ENCODING_RM) 1097 ENCODING("FR64", ENCODING_RM) 1098 ENCODING("FR32", ENCODING_RM) 1099 ENCODING("FR64X", ENCODING_RM) 1100 ENCODING("FR32X", ENCODING_RM) 1101 ENCODING("VR64", ENCODING_RM) 1102 ENCODING("VR256", ENCODING_RM) 1103 ENCODING("VR256X", ENCODING_RM) 1104 ENCODING("VR512", ENCODING_RM) 1105 ENCODING("VK1", ENCODING_RM) 1106 ENCODING("VK2", ENCODING_RM) 1107 ENCODING("VK4", ENCODING_RM) 1108 ENCODING("VK8", ENCODING_RM) 1109 ENCODING("VK16", ENCODING_RM) 1110 ENCODING("VK32", ENCODING_RM) 1111 ENCODING("VK64", ENCODING_RM) 1112 ENCODING("BNDR", ENCODING_RM) 1113 errs() << "Unhandled R/M register encoding " << s << "\n"; 1114 llvm_unreachable("Unhandled R/M register encoding"); 1115 } 1116 1117 OperandEncoding 1118 RecognizableInstr::roRegisterEncodingFromString(const std::string &s, 1119 uint8_t OpSize) { 1120 ENCODING("GR16", ENCODING_REG) 1121 ENCODING("GR32", ENCODING_REG) 1122 ENCODING("GR32orGR64", ENCODING_REG) 1123 ENCODING("GR64", ENCODING_REG) 1124 ENCODING("GR8", ENCODING_REG) 1125 ENCODING("VR128", ENCODING_REG) 1126 ENCODING("FR128", ENCODING_REG) 1127 ENCODING("FR64", ENCODING_REG) 1128 ENCODING("FR32", ENCODING_REG) 1129 ENCODING("VR64", ENCODING_REG) 1130 ENCODING("SEGMENT_REG", ENCODING_REG) 1131 ENCODING("DEBUG_REG", ENCODING_REG) 1132 ENCODING("CONTROL_REG", ENCODING_REG) 1133 ENCODING("VR256", ENCODING_REG) 1134 ENCODING("VR256X", ENCODING_REG) 1135 ENCODING("VR128X", ENCODING_REG) 1136 ENCODING("FR64X", ENCODING_REG) 1137 ENCODING("FR32X", ENCODING_REG) 1138 ENCODING("VR512", ENCODING_REG) 1139 ENCODING("VK1", ENCODING_REG) 1140 ENCODING("VK2", ENCODING_REG) 1141 ENCODING("VK4", ENCODING_REG) 1142 ENCODING("VK8", ENCODING_REG) 1143 ENCODING("VK16", ENCODING_REG) 1144 ENCODING("VK32", ENCODING_REG) 1145 ENCODING("VK64", ENCODING_REG) 1146 ENCODING("VK1WM", ENCODING_REG) 1147 ENCODING("VK2WM", ENCODING_REG) 1148 ENCODING("VK4WM", ENCODING_REG) 1149 ENCODING("VK8WM", ENCODING_REG) 1150 ENCODING("VK16WM", ENCODING_REG) 1151 ENCODING("VK32WM", ENCODING_REG) 1152 ENCODING("VK64WM", ENCODING_REG) 1153 ENCODING("BNDR", ENCODING_REG) 1154 errs() << "Unhandled reg/opcode register encoding " << s << "\n"; 1155 llvm_unreachable("Unhandled reg/opcode register encoding"); 1156 } 1157 1158 OperandEncoding 1159 RecognizableInstr::vvvvRegisterEncodingFromString(const std::string &s, 1160 uint8_t OpSize) { 1161 ENCODING("GR32", ENCODING_VVVV) 1162 ENCODING("GR64", ENCODING_VVVV) 1163 ENCODING("FR32", ENCODING_VVVV) 1164 ENCODING("FR128", ENCODING_VVVV) 1165 ENCODING("FR64", ENCODING_VVVV) 1166 ENCODING("VR128", ENCODING_VVVV) 1167 ENCODING("VR256", ENCODING_VVVV) 1168 ENCODING("FR32X", ENCODING_VVVV) 1169 ENCODING("FR64X", ENCODING_VVVV) 1170 ENCODING("VR128X", ENCODING_VVVV) 1171 ENCODING("VR256X", ENCODING_VVVV) 1172 ENCODING("VR512", ENCODING_VVVV) 1173 ENCODING("VK1", ENCODING_VVVV) 1174 ENCODING("VK2", ENCODING_VVVV) 1175 ENCODING("VK4", ENCODING_VVVV) 1176 ENCODING("VK8", ENCODING_VVVV) 1177 ENCODING("VK16", ENCODING_VVVV) 1178 ENCODING("VK32", ENCODING_VVVV) 1179 ENCODING("VK64", ENCODING_VVVV) 1180 errs() << "Unhandled VEX.vvvv register encoding " << s << "\n"; 1181 llvm_unreachable("Unhandled VEX.vvvv register encoding"); 1182 } 1183 1184 OperandEncoding 1185 RecognizableInstr::writemaskRegisterEncodingFromString(const std::string &s, 1186 uint8_t OpSize) { 1187 ENCODING("VK1WM", ENCODING_WRITEMASK) 1188 ENCODING("VK2WM", ENCODING_WRITEMASK) 1189 ENCODING("VK4WM", ENCODING_WRITEMASK) 1190 ENCODING("VK8WM", ENCODING_WRITEMASK) 1191 ENCODING("VK16WM", ENCODING_WRITEMASK) 1192 ENCODING("VK32WM", ENCODING_WRITEMASK) 1193 ENCODING("VK64WM", ENCODING_WRITEMASK) 1194 errs() << "Unhandled mask register encoding " << s << "\n"; 1195 llvm_unreachable("Unhandled mask register encoding"); 1196 } 1197 1198 OperandEncoding 1199 RecognizableInstr::memoryEncodingFromString(const std::string &s, 1200 uint8_t OpSize) { 1201 ENCODING("i16mem", ENCODING_RM) 1202 ENCODING("i32mem", ENCODING_RM) 1203 ENCODING("i64mem", ENCODING_RM) 1204 ENCODING("i8mem", ENCODING_RM) 1205 ENCODING("ssmem", ENCODING_RM) 1206 ENCODING("sdmem", ENCODING_RM) 1207 ENCODING("f128mem", ENCODING_RM) 1208 ENCODING("f256mem", ENCODING_RM) 1209 ENCODING("f512mem", ENCODING_RM) 1210 ENCODING("f64mem", ENCODING_RM) 1211 ENCODING("f32mem", ENCODING_RM) 1212 ENCODING("i128mem", ENCODING_RM) 1213 ENCODING("i256mem", ENCODING_RM) 1214 ENCODING("i512mem", ENCODING_RM) 1215 ENCODING("f80mem", ENCODING_RM) 1216 ENCODING("lea64_32mem", ENCODING_RM) 1217 ENCODING("lea64mem", ENCODING_RM) 1218 ENCODING("anymem", ENCODING_RM) 1219 ENCODING("opaque32mem", ENCODING_RM) 1220 ENCODING("opaque48mem", ENCODING_RM) 1221 ENCODING("opaque80mem", ENCODING_RM) 1222 ENCODING("opaque512mem", ENCODING_RM) 1223 ENCODING("vx32mem", ENCODING_RM) 1224 ENCODING("vx32xmem", ENCODING_RM) 1225 ENCODING("vy32mem", ENCODING_RM) 1226 ENCODING("vy32xmem", ENCODING_RM) 1227 ENCODING("vz32mem", ENCODING_RM) 1228 ENCODING("vx64mem", ENCODING_RM) 1229 ENCODING("vx64xmem", ENCODING_RM) 1230 ENCODING("vy64mem", ENCODING_RM) 1231 ENCODING("vy64xmem", ENCODING_RM) 1232 ENCODING("vz64mem", ENCODING_RM) 1233 errs() << "Unhandled memory encoding " << s << "\n"; 1234 llvm_unreachable("Unhandled memory encoding"); 1235 } 1236 1237 OperandEncoding 1238 RecognizableInstr::relocationEncodingFromString(const std::string &s, 1239 uint8_t OpSize) { 1240 if(OpSize != X86Local::OpSize16) { 1241 // For instructions without an OpSize prefix, a declared 16-bit register or 1242 // immediate encoding is special. 1243 ENCODING("i16imm", ENCODING_IW) 1244 } 1245 ENCODING("i16imm", ENCODING_Iv) 1246 ENCODING("i16i8imm", ENCODING_IB) 1247 ENCODING("i32imm", ENCODING_Iv) 1248 ENCODING("i32i8imm", ENCODING_IB) 1249 ENCODING("i64i32imm", ENCODING_ID) 1250 ENCODING("i64i8imm", ENCODING_IB) 1251 ENCODING("i8imm", ENCODING_IB) 1252 ENCODING("u8imm", ENCODING_IB) 1253 ENCODING("i32u8imm", ENCODING_IB) 1254 ENCODING("i64i32imm_pcrel", ENCODING_ID) 1255 ENCODING("i16imm_pcrel", ENCODING_IW) 1256 ENCODING("i32imm_pcrel", ENCODING_ID) 1257 ENCODING("brtarget32", ENCODING_Iv) 1258 ENCODING("brtarget16", ENCODING_Iv) 1259 ENCODING("brtarget8", ENCODING_IB) 1260 ENCODING("i64imm", ENCODING_IO) 1261 ENCODING("offset16_8", ENCODING_Ia) 1262 ENCODING("offset16_16", ENCODING_Ia) 1263 ENCODING("offset16_32", ENCODING_Ia) 1264 ENCODING("offset32_8", ENCODING_Ia) 1265 ENCODING("offset32_16", ENCODING_Ia) 1266 ENCODING("offset32_32", ENCODING_Ia) 1267 ENCODING("offset32_64", ENCODING_Ia) 1268 ENCODING("offset64_8", ENCODING_Ia) 1269 ENCODING("offset64_16", ENCODING_Ia) 1270 ENCODING("offset64_32", ENCODING_Ia) 1271 ENCODING("offset64_64", ENCODING_Ia) 1272 ENCODING("srcidx8", ENCODING_SI) 1273 ENCODING("srcidx16", ENCODING_SI) 1274 ENCODING("srcidx32", ENCODING_SI) 1275 ENCODING("srcidx64", ENCODING_SI) 1276 ENCODING("dstidx8", ENCODING_DI) 1277 ENCODING("dstidx16", ENCODING_DI) 1278 ENCODING("dstidx32", ENCODING_DI) 1279 ENCODING("dstidx64", ENCODING_DI) 1280 errs() << "Unhandled relocation encoding " << s << "\n"; 1281 llvm_unreachable("Unhandled relocation encoding"); 1282 } 1283 1284 OperandEncoding 1285 RecognizableInstr::opcodeModifierEncodingFromString(const std::string &s, 1286 uint8_t OpSize) { 1287 ENCODING("GR32", ENCODING_Rv) 1288 ENCODING("GR64", ENCODING_RO) 1289 ENCODING("GR16", ENCODING_Rv) 1290 ENCODING("GR8", ENCODING_RB) 1291 ENCODING("GR16_NOAX", ENCODING_Rv) 1292 ENCODING("GR32_NOAX", ENCODING_Rv) 1293 ENCODING("GR64_NOAX", ENCODING_RO) 1294 errs() << "Unhandled opcode modifier encoding " << s << "\n"; 1295 llvm_unreachable("Unhandled opcode modifier encoding"); 1296 } 1297 #undef ENCODING 1298
