1 //===- InstrInfoEmitter.cpp - Generate a Instruction Set Desc. --*- C++ -*-===//
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
7 //===----------------------------------------------------------------------===//
9 // This tablegen backend is responsible for emitting a description of the target
10 // instruction set for the code generator.
12 //===----------------------------------------------------------------------===//
14 #include "CodeGenDAGPatterns.h"
15 #include "CodeGenInstruction.h"
16 #include "CodeGenSchedule.h"
17 #include "CodeGenTarget.h"
18 #include "PredicateExpander.h"
19 #include "SequenceToOffsetTable.h"
20 #include "TableGenBackends.h"
21 #include "llvm/ADT/ArrayRef.h"
22 #include "llvm/ADT/StringExtras.h"
23 #include "llvm/Support/Casting.h"
24 #include "llvm/Support/raw_ostream.h"
25 #include "llvm/TableGen/Error.h"
26 #include "llvm/TableGen/Record.h"
27 #include "llvm/TableGen/TableGenBackend.h"
39 class InstrInfoEmitter {
40 RecordKeeper &Records;
41 CodeGenDAGPatterns CDP;
42 const CodeGenSchedModels &SchedModels;
45 InstrInfoEmitter(RecordKeeper &R):
46 Records(R), CDP(R), SchedModels(CDP.getTargetInfo().getSchedModels()) {}
48 // run - Output the instruction set description.
49 void run(raw_ostream &OS);
52 void emitEnums(raw_ostream &OS);
54 typedef std::map<std::vector<std::string>, unsigned> OperandInfoMapTy;
56 /// The keys of this map are maps which have OpName enum values as their keys
57 /// and instruction operand indices as their values. The values of this map
58 /// are lists of instruction names.
59 typedef std::map<std::map<unsigned, unsigned>,
60 std::vector<std::string>> OpNameMapTy;
61 typedef std::map<std::string, unsigned>::iterator StrUintMapIter;
63 /// Generate member functions in the target-specific GenInstrInfo class.
65 /// This method is used to custom expand TIIPredicate definitions.
66 /// See file llvm/Target/TargetInstPredicates.td for a description of what is
67 /// a TIIPredicate and how to use it.
68 void emitTIIHelperMethods(raw_ostream &OS, StringRef TargetName,
69 bool ExpandDefinition = true);
71 /// Expand TIIPredicate definitions to functions that accept a const MCInst
73 void emitMCIIHelperMethods(raw_ostream &OS, StringRef TargetName);
74 void emitRecord(const CodeGenInstruction &Inst, unsigned Num,
76 std::map<std::vector<Record*>, unsigned> &EL,
77 const OperandInfoMapTy &OpInfo,
79 void emitOperandTypeMappings(
80 raw_ostream &OS, const CodeGenTarget &Target,
81 ArrayRef<const CodeGenInstruction *> NumberedInstructions);
82 void initOperandMapData(
83 ArrayRef<const CodeGenInstruction *> NumberedInstructions,
85 std::map<std::string, unsigned> &Operands,
86 OpNameMapTy &OperandMap);
87 void emitOperandNameMappings(raw_ostream &OS, const CodeGenTarget &Target,
88 ArrayRef<const CodeGenInstruction*> NumberedInstructions);
90 // Operand information.
91 void EmitOperandInfo(raw_ostream &OS, OperandInfoMapTy &OperandInfoIDs);
92 std::vector<std::string> GetOperandInfo(const CodeGenInstruction &Inst);
95 } // end anonymous namespace
97 static void PrintDefList(const std::vector<Record*> &Uses,
98 unsigned Num, raw_ostream &OS) {
99 OS << "static const MCPhysReg ImplicitList" << Num << "[] = { ";
100 for (Record *U : Uses)
101 OS << getQualifiedName(U) << ", ";
105 //===----------------------------------------------------------------------===//
106 // Operand Info Emission.
107 //===----------------------------------------------------------------------===//
109 std::vector<std::string>
110 InstrInfoEmitter::GetOperandInfo(const CodeGenInstruction &Inst) {
111 std::vector<std::string> Result;
113 for (auto &Op : Inst.Operands) {
114 // Handle aggregate operands and normal operands the same way by expanding
115 // either case into a list of operands for this op.
116 std::vector<CGIOperandList::OperandInfo> OperandList;
118 // This might be a multiple operand thing. Targets like X86 have
119 // registers in their multi-operand operands. It may also be an anonymous
120 // operand, which has a single operand, but no declared class for the
122 DagInit *MIOI = Op.MIOperandInfo;
124 if (!MIOI || MIOI->getNumArgs() == 0) {
125 // Single, anonymous, operand.
126 OperandList.push_back(Op);
128 for (unsigned j = 0, e = Op.MINumOperands; j != e; ++j) {
129 OperandList.push_back(Op);
131 auto *OpR = cast<DefInit>(MIOI->getArg(j))->getDef();
132 OperandList.back().Rec = OpR;
136 for (unsigned j = 0, e = OperandList.size(); j != e; ++j) {
137 Record *OpR = OperandList[j].Rec;
140 if (OpR->isSubClassOf("RegisterOperand"))
141 OpR = OpR->getValueAsDef("RegClass");
142 if (OpR->isSubClassOf("RegisterClass"))
143 Res += getQualifiedName(OpR) + "RegClassID, ";
144 else if (OpR->isSubClassOf("PointerLikeRegClass"))
145 Res += utostr(OpR->getValueAsInt("RegClassKind")) + ", ";
147 // -1 means the operand does not have a fixed register class.
150 // Fill in applicable flags.
153 // Ptr value whose register class is resolved via callback.
154 if (OpR->isSubClassOf("PointerLikeRegClass"))
155 Res += "|(1<<MCOI::LookupPtrRegClass)";
157 // Predicate operands. Check to see if the original unexpanded operand
158 // was of type PredicateOp.
159 if (Op.Rec->isSubClassOf("PredicateOp"))
160 Res += "|(1<<MCOI::Predicate)";
162 // Optional def operands. Check to see if the original unexpanded operand
163 // was of type OptionalDefOperand.
164 if (Op.Rec->isSubClassOf("OptionalDefOperand"))
165 Res += "|(1<<MCOI::OptionalDef)";
167 // Branch target operands. Check to see if the original unexpanded
168 // operand was of type BranchTargetOperand.
169 if (Op.Rec->isSubClassOf("BranchTargetOperand"))
170 Res += "|(1<<MCOI::BranchTarget)";
172 // Fill in operand type.
174 assert(!Op.OperandType.empty() && "Invalid operand type.");
175 Res += Op.OperandType;
177 // Fill in constraint info.
180 const CGIOperandList::ConstraintInfo &Constraint =
182 if (Constraint.isNone())
184 else if (Constraint.isEarlyClobber())
185 Res += "(1 << MCOI::EARLY_CLOBBER)";
187 assert(Constraint.isTied());
188 Res += "((" + utostr(Constraint.getTiedOperand()) +
189 " << 16) | (1 << MCOI::TIED_TO))";
192 Result.push_back(Res);
199 void InstrInfoEmitter::EmitOperandInfo(raw_ostream &OS,
200 OperandInfoMapTy &OperandInfoIDs) {
201 // ID #0 is for no operand info.
202 unsigned OperandListNum = 0;
203 OperandInfoIDs[std::vector<std::string>()] = ++OperandListNum;
206 const CodeGenTarget &Target = CDP.getTargetInfo();
207 for (const CodeGenInstruction *Inst : Target.getInstructionsByEnumValue()) {
208 std::vector<std::string> OperandInfo = GetOperandInfo(*Inst);
209 unsigned &N = OperandInfoIDs[OperandInfo];
210 if (N != 0) continue;
212 N = ++OperandListNum;
213 OS << "static const MCOperandInfo OperandInfo" << N << "[] = { ";
214 for (const std::string &Info : OperandInfo)
215 OS << "{ " << Info << " }, ";
220 /// Initialize data structures for generating operand name mappings.
222 /// \param Operands [out] A map used to generate the OpName enum with operand
223 /// names as its keys and operand enum values as its values.
224 /// \param OperandMap [out] A map for representing the operand name mappings for
225 /// each instructions. This is used to generate the OperandMap table as
226 /// well as the getNamedOperandIdx() function.
227 void InstrInfoEmitter::initOperandMapData(
228 ArrayRef<const CodeGenInstruction *> NumberedInstructions,
230 std::map<std::string, unsigned> &Operands,
231 OpNameMapTy &OperandMap) {
232 unsigned NumOperands = 0;
233 for (const CodeGenInstruction *Inst : NumberedInstructions) {
234 if (!Inst->TheDef->getValueAsBit("UseNamedOperandTable"))
236 std::map<unsigned, unsigned> OpList;
237 for (const auto &Info : Inst->Operands) {
238 StrUintMapIter I = Operands.find(Info.Name);
240 if (I == Operands.end()) {
241 I = Operands.insert(Operands.begin(),
242 std::pair<std::string, unsigned>(Info.Name, NumOperands++));
244 OpList[I->second] = Info.MIOperandNo;
246 OperandMap[OpList].push_back(Namespace.str() + "::" +
247 Inst->TheDef->getName().str());
251 /// Generate a table and function for looking up the indices of operands by
254 /// This code generates:
255 /// - An enum in the llvm::TargetNamespace::OpName namespace, with one entry
256 /// for each operand name.
257 /// - A 2-dimensional table called OperandMap for mapping OpName enum values to
259 /// - A function called getNamedOperandIdx(uint16_t Opcode, uint16_t NamedIdx)
260 /// for looking up the operand index for an instruction, given a value from
262 void InstrInfoEmitter::emitOperandNameMappings(raw_ostream &OS,
263 const CodeGenTarget &Target,
264 ArrayRef<const CodeGenInstruction*> NumberedInstructions) {
265 StringRef Namespace = Target.getInstNamespace();
266 std::string OpNameNS = "OpName";
267 // Map of operand names to their enumeration value. This will be used to
268 // generate the OpName enum.
269 std::map<std::string, unsigned> Operands;
270 OpNameMapTy OperandMap;
272 initOperandMapData(NumberedInstructions, Namespace, Operands, OperandMap);
274 OS << "#ifdef GET_INSTRINFO_OPERAND_ENUM\n";
275 OS << "#undef GET_INSTRINFO_OPERAND_ENUM\n";
276 OS << "namespace llvm {\n";
277 OS << "namespace " << Namespace << " {\n";
278 OS << "namespace " << OpNameNS << " {\n";
280 for (const auto &Op : Operands)
281 OS << " " << Op.first << " = " << Op.second << ",\n";
283 OS << "OPERAND_LAST";
285 OS << "} // end namespace OpName\n";
286 OS << "} // end namespace " << Namespace << "\n";
287 OS << "} // end namespace llvm\n";
288 OS << "#endif //GET_INSTRINFO_OPERAND_ENUM\n\n";
290 OS << "#ifdef GET_INSTRINFO_NAMED_OPS\n";
291 OS << "#undef GET_INSTRINFO_NAMED_OPS\n";
292 OS << "namespace llvm {\n";
293 OS << "namespace " << Namespace << " {\n";
294 OS << "LLVM_READONLY\n";
295 OS << "int16_t getNamedOperandIdx(uint16_t Opcode, uint16_t NamedIdx) {\n";
296 if (!Operands.empty()) {
297 OS << " static const int16_t OperandMap [][" << Operands.size()
299 for (const auto &Entry : OperandMap) {
300 const std::map<unsigned, unsigned> &OpList = Entry.first;
303 // Emit a row of the OperandMap table
304 for (unsigned i = 0, e = Operands.size(); i != e; ++i)
305 OS << (OpList.count(i) == 0 ? -1 : (int)OpList.find(i)->second) << ", ";
311 OS << " switch(Opcode) {\n";
312 unsigned TableIndex = 0;
313 for (const auto &Entry : OperandMap) {
314 for (const std::string &Name : Entry.second)
315 OS << " case " << Name << ":\n";
317 OS << " return OperandMap[" << TableIndex++ << "][NamedIdx];\n";
319 OS << " default: return -1;\n";
322 // There are no operands, so no need to emit anything
323 OS << " return -1;\n";
326 OS << "} // end namespace " << Namespace << "\n";
327 OS << "} // end namespace llvm\n";
328 OS << "#endif //GET_INSTRINFO_NAMED_OPS\n\n";
331 /// Generate an enum for all the operand types for this target, under the
332 /// llvm::TargetNamespace::OpTypes namespace.
333 /// Operand types are all definitions derived of the Operand Target.td class.
334 void InstrInfoEmitter::emitOperandTypeMappings(
335 raw_ostream &OS, const CodeGenTarget &Target,
336 ArrayRef<const CodeGenInstruction *> NumberedInstructions) {
338 StringRef Namespace = Target.getInstNamespace();
339 std::vector<Record *> Operands = Records.getAllDerivedDefinitions("Operand");
340 std::vector<Record *> RegisterOperands =
341 Records.getAllDerivedDefinitions("RegisterOperand");
342 std::vector<Record *> RegisterClasses =
343 Records.getAllDerivedDefinitions("RegisterClass");
345 OS << "#ifdef GET_INSTRINFO_OPERAND_TYPES_ENUM\n";
346 OS << "#undef GET_INSTRINFO_OPERAND_TYPES_ENUM\n";
347 OS << "namespace llvm {\n";
348 OS << "namespace " << Namespace << " {\n";
349 OS << "namespace OpTypes {\n";
350 OS << "enum OperandType {\n";
352 unsigned EnumVal = 0;
353 for (const std::vector<Record *> *RecordsToAdd :
354 {&Operands, &RegisterOperands, &RegisterClasses}) {
355 for (const Record *Op : *RecordsToAdd) {
356 if (!Op->isAnonymous())
357 OS << " " << Op->getName() << " = " << EnumVal << ",\n";
362 OS << " OPERAND_TYPE_LIST_END" << "\n};\n";
363 OS << "} // end namespace OpTypes\n";
364 OS << "} // end namespace " << Namespace << "\n";
365 OS << "} // end namespace llvm\n";
366 OS << "#endif // GET_INSTRINFO_OPERAND_TYPES_ENUM\n\n";
368 OS << "#ifdef GET_INSTRINFO_OPERAND_TYPE\n";
369 OS << "#undef GET_INSTRINFO_OPERAND_TYPE\n";
370 OS << "namespace llvm {\n";
371 OS << "namespace " << Namespace << " {\n";
372 OS << "LLVM_READONLY\n";
373 OS << "static int getOperandType(uint16_t Opcode, uint16_t OpIdx) {\n";
374 // TODO: Factor out instructions with same operands to compress the tables.
375 if (!NumberedInstructions.empty()) {
376 std::vector<int> OperandOffsets;
377 std::vector<Record *> OperandRecords;
378 int CurrentOffset = 0;
379 for (const CodeGenInstruction *Inst : NumberedInstructions) {
380 OperandOffsets.push_back(CurrentOffset);
381 for (const auto &Op : Inst->Operands) {
382 const DagInit *MIOI = Op.MIOperandInfo;
383 if (!MIOI || MIOI->getNumArgs() == 0) {
384 // Single, anonymous, operand.
385 OperandRecords.push_back(Op.Rec);
388 for (Init *Arg : make_range(MIOI->arg_begin(), MIOI->arg_end())) {
389 OperandRecords.push_back(cast<DefInit>(Arg)->getDef());
396 // Emit the table of offsets for the opcode lookup.
397 OS << " const int Offsets[] = {\n";
398 for (int I = 0, E = OperandOffsets.size(); I != E; ++I)
399 OS << " " << OperandOffsets[I] << ",\n";
402 // Add an entry for the end so that we don't need to special case it below.
403 OperandOffsets.push_back(OperandRecords.size());
404 // Emit the actual operand types in a flat table.
405 OS << " const int OpcodeOperandTypes[] = {\n ";
406 for (int I = 0, E = OperandRecords.size(), CurOffset = 1; I != E; ++I) {
407 // We print each Opcode's operands in its own row.
408 if (I == OperandOffsets[CurOffset]) {
410 // If there are empty rows, mark them with an empty comment.
411 while (OperandOffsets[++CurOffset] == I)
414 Record *OpR = OperandRecords[I];
415 if ((OpR->isSubClassOf("Operand") ||
416 OpR->isSubClassOf("RegisterOperand") ||
417 OpR->isSubClassOf("RegisterClass")) &&
419 OS << "OpTypes::" << OpR->getName();
426 OS << " return OpcodeOperandTypes[Offsets[Opcode] + OpIdx];\n";
428 OS << " llvm_unreachable(\"No instructions defined\");\n";
431 OS << "} // end namespace " << Namespace << "\n";
432 OS << "} // end namespace llvm\n";
433 OS << "#endif // GET_INSTRINFO_OPERAND_TYPE\n\n";
436 void InstrInfoEmitter::emitMCIIHelperMethods(raw_ostream &OS,
437 StringRef TargetName) {
438 RecVec TIIPredicates = Records.getAllDerivedDefinitions("TIIPredicate");
439 if (TIIPredicates.empty())
442 OS << "#ifdef GET_INSTRINFO_MC_HELPER_DECLS\n";
443 OS << "#undef GET_INSTRINFO_MC_HELPER_DECLS\n\n";
445 OS << "namespace llvm {\n";
446 OS << "class MCInst;\n\n";
448 OS << "namespace " << TargetName << "_MC {\n\n";
450 for (const Record *Rec : TIIPredicates) {
451 OS << "bool " << Rec->getValueAsString("FunctionName")
452 << "(const MCInst &MI);\n";
455 OS << "\n} // end namespace " << TargetName << "_MC\n";
456 OS << "} // end namespace llvm\n\n";
458 OS << "#endif // GET_INSTRINFO_MC_HELPER_DECLS\n\n";
460 OS << "#ifdef GET_INSTRINFO_MC_HELPERS\n";
461 OS << "#undef GET_INSTRINFO_MC_HELPERS\n\n";
463 OS << "namespace llvm {\n";
464 OS << "namespace " << TargetName << "_MC {\n\n";
466 PredicateExpander PE(TargetName);
467 PE.setExpandForMC(true);
469 for (const Record *Rec : TIIPredicates) {
470 OS << "bool " << Rec->getValueAsString("FunctionName");
471 OS << "(const MCInst &MI) {\n";
473 OS.indent(PE.getIndentLevel() * 2);
474 PE.expandStatement(OS, Rec->getValueAsDef("Body"));
478 OS << "} // end namespace " << TargetName << "_MC\n";
479 OS << "} // end namespace llvm\n\n";
481 OS << "#endif // GET_GENISTRINFO_MC_HELPERS\n";
484 void InstrInfoEmitter::emitTIIHelperMethods(raw_ostream &OS,
485 StringRef TargetName,
486 bool ExpandDefinition) {
487 RecVec TIIPredicates = Records.getAllDerivedDefinitions("TIIPredicate");
488 if (TIIPredicates.empty())
491 PredicateExpander PE(TargetName);
492 PE.setExpandForMC(false);
494 for (const Record *Rec : TIIPredicates) {
495 OS << (ExpandDefinition ? "" : "static ") << "bool ";
496 if (ExpandDefinition)
497 OS << TargetName << "InstrInfo::";
498 OS << Rec->getValueAsString("FunctionName");
499 OS << "(const MachineInstr &MI)";
500 if (!ExpandDefinition) {
506 OS.indent(PE.getIndentLevel() * 2);
507 PE.expandStatement(OS, Rec->getValueAsDef("Body"));
512 //===----------------------------------------------------------------------===//
514 //===----------------------------------------------------------------------===//
516 // run - Emit the main instruction description records for the target...
517 void InstrInfoEmitter::run(raw_ostream &OS) {
518 emitSourceFileHeader("Target Instruction Enum Values and Descriptors", OS);
521 OS << "#ifdef GET_INSTRINFO_MC_DESC\n";
522 OS << "#undef GET_INSTRINFO_MC_DESC\n";
524 OS << "namespace llvm {\n\n";
526 CodeGenTarget &Target = CDP.getTargetInfo();
527 const std::string &TargetName = Target.getName();
528 Record *InstrInfo = Target.getInstructionSet();
530 // Keep track of all of the def lists we have emitted already.
531 std::map<std::vector<Record*>, unsigned> EmittedLists;
532 unsigned ListNumber = 0;
534 // Emit all of the instruction's implicit uses and defs.
535 for (const CodeGenInstruction *II : Target.getInstructionsByEnumValue()) {
536 Record *Inst = II->TheDef;
537 std::vector<Record*> Uses = Inst->getValueAsListOfDefs("Uses");
539 unsigned &IL = EmittedLists[Uses];
540 if (!IL) PrintDefList(Uses, IL = ++ListNumber, OS);
542 std::vector<Record*> Defs = Inst->getValueAsListOfDefs("Defs");
544 unsigned &IL = EmittedLists[Defs];
545 if (!IL) PrintDefList(Defs, IL = ++ListNumber, OS);
549 OperandInfoMapTy OperandInfoIDs;
551 // Emit all of the operand info records.
552 EmitOperandInfo(OS, OperandInfoIDs);
554 // Emit all of the MCInstrDesc records in their ENUM ordering.
556 OS << "\nextern const MCInstrDesc " << TargetName << "Insts[] = {\n";
557 ArrayRef<const CodeGenInstruction*> NumberedInstructions =
558 Target.getInstructionsByEnumValue();
560 SequenceToOffsetTable<std::string> InstrNames;
562 for (const CodeGenInstruction *Inst : NumberedInstructions) {
563 // Keep a list of the instruction names.
564 InstrNames.add(Inst->TheDef->getName());
565 // Emit the record into the table.
566 emitRecord(*Inst, Num++, InstrInfo, EmittedLists, OperandInfoIDs, OS);
570 // Emit the array of instruction names.
572 OS << "extern const char " << TargetName << "InstrNameData[] = {\n";
573 InstrNames.emit(OS, printChar);
576 OS << "extern const unsigned " << TargetName <<"InstrNameIndices[] = {";
578 for (const CodeGenInstruction *Inst : NumberedInstructions) {
579 // Newline every eight entries.
582 OS << InstrNames.get(Inst->TheDef->getName()) << "U, ";
588 // MCInstrInfo initialization routine.
589 OS << "static inline void Init" << TargetName
590 << "MCInstrInfo(MCInstrInfo *II) {\n";
591 OS << " II->InitMCInstrInfo(" << TargetName << "Insts, "
592 << TargetName << "InstrNameIndices, " << TargetName << "InstrNameData, "
593 << NumberedInstructions.size() << ");\n}\n\n";
595 OS << "} // end namespace llvm\n";
597 OS << "#endif // GET_INSTRINFO_MC_DESC\n\n";
599 // Create a TargetInstrInfo subclass to hide the MC layer initialization.
600 OS << "#ifdef GET_INSTRINFO_HEADER\n";
601 OS << "#undef GET_INSTRINFO_HEADER\n";
603 std::string ClassName = TargetName + "GenInstrInfo";
604 OS << "namespace llvm {\n";
605 OS << "struct " << ClassName << " : public TargetInstrInfo {\n"
606 << " explicit " << ClassName
607 << "(int CFSetupOpcode = -1, int CFDestroyOpcode = -1, int CatchRetOpcode = -1, int ReturnOpcode = -1);\n"
608 << " ~" << ClassName << "() override = default;\n";
611 OS << "\n};\n} // end namespace llvm\n";
613 OS << "#endif // GET_INSTRINFO_HEADER\n\n";
615 OS << "#ifdef GET_INSTRINFO_HELPER_DECLS\n";
616 OS << "#undef GET_INSTRINFO_HELPER_DECLS\n\n";
617 emitTIIHelperMethods(OS, TargetName, /* ExpandDefintion = */false);
619 OS << "#endif // GET_INSTRINFO_HELPER_DECLS\n\n";
621 OS << "#ifdef GET_INSTRINFO_HELPERS\n";
622 OS << "#undef GET_INSTRINFO_HELPERS\n\n";
623 emitTIIHelperMethods(OS, TargetName, /* ExpandDefintion = */true);
624 OS << "#endif // GET_INSTRINFO_HELPERS\n\n";
626 OS << "#ifdef GET_INSTRINFO_CTOR_DTOR\n";
627 OS << "#undef GET_INSTRINFO_CTOR_DTOR\n";
629 OS << "namespace llvm {\n";
630 OS << "extern const MCInstrDesc " << TargetName << "Insts[];\n";
631 OS << "extern const unsigned " << TargetName << "InstrNameIndices[];\n";
632 OS << "extern const char " << TargetName << "InstrNameData[];\n";
633 OS << ClassName << "::" << ClassName
634 << "(int CFSetupOpcode, int CFDestroyOpcode, int CatchRetOpcode, int ReturnOpcode)\n"
635 << " : TargetInstrInfo(CFSetupOpcode, CFDestroyOpcode, CatchRetOpcode, ReturnOpcode) {\n"
636 << " InitMCInstrInfo(" << TargetName << "Insts, " << TargetName
637 << "InstrNameIndices, " << TargetName << "InstrNameData, "
638 << NumberedInstructions.size() << ");\n}\n";
639 OS << "} // end namespace llvm\n";
641 OS << "#endif // GET_INSTRINFO_CTOR_DTOR\n\n";
643 emitOperandNameMappings(OS, Target, NumberedInstructions);
645 emitOperandTypeMappings(OS, Target, NumberedInstructions);
647 emitMCIIHelperMethods(OS, TargetName);
650 void InstrInfoEmitter::emitRecord(const CodeGenInstruction &Inst, unsigned Num,
652 std::map<std::vector<Record*>, unsigned> &EmittedLists,
653 const OperandInfoMapTy &OpInfo,
656 if (!Inst.Operands.empty())
657 // Each logical operand can be multiple MI operands.
658 MinOperands = Inst.Operands.back().MIOperandNo +
659 Inst.Operands.back().MINumOperands;
662 OS << Num << ",\t" << MinOperands << ",\t"
663 << Inst.Operands.NumDefs << ",\t"
664 << Inst.TheDef->getValueAsInt("Size") << ",\t"
665 << SchedModels.getSchedClassIdx(Inst) << ",\t0";
667 CodeGenTarget &Target = CDP.getTargetInfo();
669 // Emit all of the target independent flags...
670 if (Inst.isPreISelOpcode) OS << "|(1ULL<<MCID::PreISelOpcode)";
671 if (Inst.isPseudo) OS << "|(1ULL<<MCID::Pseudo)";
672 if (Inst.isReturn) OS << "|(1ULL<<MCID::Return)";
673 if (Inst.isEHScopeReturn) OS << "|(1ULL<<MCID::EHScopeReturn)";
674 if (Inst.isBranch) OS << "|(1ULL<<MCID::Branch)";
675 if (Inst.isIndirectBranch) OS << "|(1ULL<<MCID::IndirectBranch)";
676 if (Inst.isCompare) OS << "|(1ULL<<MCID::Compare)";
677 if (Inst.isMoveImm) OS << "|(1ULL<<MCID::MoveImm)";
678 if (Inst.isMoveReg) OS << "|(1ULL<<MCID::MoveReg)";
679 if (Inst.isBitcast) OS << "|(1ULL<<MCID::Bitcast)";
680 if (Inst.isAdd) OS << "|(1ULL<<MCID::Add)";
681 if (Inst.isTrap) OS << "|(1ULL<<MCID::Trap)";
682 if (Inst.isSelect) OS << "|(1ULL<<MCID::Select)";
683 if (Inst.isBarrier) OS << "|(1ULL<<MCID::Barrier)";
684 if (Inst.hasDelaySlot) OS << "|(1ULL<<MCID::DelaySlot)";
685 if (Inst.isCall) OS << "|(1ULL<<MCID::Call)";
686 if (Inst.canFoldAsLoad) OS << "|(1ULL<<MCID::FoldableAsLoad)";
687 if (Inst.mayLoad) OS << "|(1ULL<<MCID::MayLoad)";
688 if (Inst.mayStore) OS << "|(1ULL<<MCID::MayStore)";
689 if (Inst.mayRaiseFPException) OS << "|(1ULL<<MCID::MayRaiseFPException)";
690 if (Inst.isPredicable) OS << "|(1ULL<<MCID::Predicable)";
691 if (Inst.isConvertibleToThreeAddress) OS << "|(1ULL<<MCID::ConvertibleTo3Addr)";
692 if (Inst.isCommutable) OS << "|(1ULL<<MCID::Commutable)";
693 if (Inst.isTerminator) OS << "|(1ULL<<MCID::Terminator)";
694 if (Inst.isReMaterializable) OS << "|(1ULL<<MCID::Rematerializable)";
695 if (Inst.isNotDuplicable) OS << "|(1ULL<<MCID::NotDuplicable)";
696 if (Inst.Operands.hasOptionalDef) OS << "|(1ULL<<MCID::HasOptionalDef)";
697 if (Inst.usesCustomInserter) OS << "|(1ULL<<MCID::UsesCustomInserter)";
698 if (Inst.hasPostISelHook) OS << "|(1ULL<<MCID::HasPostISelHook)";
699 if (Inst.Operands.isVariadic)OS << "|(1ULL<<MCID::Variadic)";
700 if (Inst.hasSideEffects) OS << "|(1ULL<<MCID::UnmodeledSideEffects)";
701 if (Inst.isAsCheapAsAMove) OS << "|(1ULL<<MCID::CheapAsAMove)";
702 if (!Target.getAllowRegisterRenaming() || Inst.hasExtraSrcRegAllocReq)
703 OS << "|(1ULL<<MCID::ExtraSrcRegAllocReq)";
704 if (!Target.getAllowRegisterRenaming() || Inst.hasExtraDefRegAllocReq)
705 OS << "|(1ULL<<MCID::ExtraDefRegAllocReq)";
706 if (Inst.isRegSequence) OS << "|(1ULL<<MCID::RegSequence)";
707 if (Inst.isExtractSubreg) OS << "|(1ULL<<MCID::ExtractSubreg)";
708 if (Inst.isInsertSubreg) OS << "|(1ULL<<MCID::InsertSubreg)";
709 if (Inst.isConvergent) OS << "|(1ULL<<MCID::Convergent)";
710 if (Inst.variadicOpsAreDefs) OS << "|(1ULL<<MCID::VariadicOpsAreDefs)";
711 if (Inst.isAuthenticated) OS << "|(1ULL<<MCID::Authenticated)";
713 // Emit all of the target-specific flags...
714 BitsInit *TSF = Inst.TheDef->getValueAsBitsInit("TSFlags");
716 PrintFatalError(Inst.TheDef->getLoc(), "no TSFlags?");
718 for (unsigned i = 0, e = TSF->getNumBits(); i != e; ++i) {
719 if (const auto *Bit = dyn_cast<BitInit>(TSF->getBit(i)))
720 Value |= uint64_t(Bit->getValue()) << i;
722 PrintFatalError(Inst.TheDef->getLoc(),
723 "Invalid TSFlags bit in " + Inst.TheDef->getName());
729 // Emit the implicit uses and defs lists...
730 std::vector<Record*> UseList = Inst.TheDef->getValueAsListOfDefs("Uses");
734 OS << "ImplicitList" << EmittedLists[UseList] << ", ";
736 std::vector<Record*> DefList = Inst.TheDef->getValueAsListOfDefs("Defs");
740 OS << "ImplicitList" << EmittedLists[DefList] << ", ";
742 // Emit the operand info.
743 std::vector<std::string> OperandInfo = GetOperandInfo(Inst);
744 if (OperandInfo.empty())
747 OS << "OperandInfo" << OpInfo.find(OperandInfo)->second;
749 if (Inst.HasComplexDeprecationPredicate)
750 // Emit a function pointer to the complex predicate method.
752 << ",&get" << Inst.DeprecatedReason << "DeprecationInfo";
753 else if (!Inst.DeprecatedReason.empty())
754 // Emit the Subtarget feature.
755 OS << ", " << Target.getInstNamespace() << "::" << Inst.DeprecatedReason
758 // Instruction isn't deprecated.
759 OS << ", -1 ,nullptr";
761 OS << " }, // Inst #" << Num << " = " << Inst.TheDef->getName() << "\n";
764 // emitEnums - Print out enum values for all of the instructions.
765 void InstrInfoEmitter::emitEnums(raw_ostream &OS) {
766 OS << "#ifdef GET_INSTRINFO_ENUM\n";
767 OS << "#undef GET_INSTRINFO_ENUM\n";
769 OS << "namespace llvm {\n\n";
771 CodeGenTarget Target(Records);
773 // We must emit the PHI opcode first...
774 StringRef Namespace = Target.getInstNamespace();
776 if (Namespace.empty())
777 PrintFatalError("No instructions defined!");
779 OS << "namespace " << Namespace << " {\n";
782 for (const CodeGenInstruction *Inst : Target.getInstructionsByEnumValue())
783 OS << " " << Inst->TheDef->getName() << "\t= " << Num++ << ",\n";
784 OS << " INSTRUCTION_LIST_END = " << Num << "\n";
786 OS << "} // end namespace " << Namespace << "\n";
787 OS << "} // end namespace llvm\n";
788 OS << "#endif // GET_INSTRINFO_ENUM\n\n";
790 OS << "#ifdef GET_INSTRINFO_SCHED_ENUM\n";
791 OS << "#undef GET_INSTRINFO_SCHED_ENUM\n";
792 OS << "namespace llvm {\n\n";
793 OS << "namespace " << Namespace << " {\n";
794 OS << "namespace Sched {\n";
797 for (const auto &Class : SchedModels.explicit_classes())
798 OS << " " << Class.Name << "\t= " << Num++ << ",\n";
799 OS << " SCHED_LIST_END = " << Num << "\n";
801 OS << "} // end namespace Sched\n";
802 OS << "} // end namespace " << Namespace << "\n";
803 OS << "} // end namespace llvm\n";
805 OS << "#endif // GET_INSTRINFO_SCHED_ENUM\n\n";
810 void EmitInstrInfo(RecordKeeper &RK, raw_ostream &OS) {
811 InstrInfoEmitter(RK).run(OS);
812 EmitMapTable(RK, OS);
815 } // end namespace llvm