613 lines
		
	
	
		
			22 KiB
		
	
	
	
		
			C++
		
	
	
	
			
		
		
	
	
			613 lines
		
	
	
		
			22 KiB
		
	
	
	
		
			C++
		
	
	
	
| //===- InstrInfoEmitter.cpp - Generate a Instruction Set Desc. --*- C++ -*-===//
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| //
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| //                     The LLVM Compiler Infrastructure
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| //
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| // This file is distributed under the University of Illinois Open Source
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| // License. See LICENSE.TXT for details.
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| //
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| //===----------------------------------------------------------------------===//
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| //
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| // This tablegen backend is responsible for emitting a description of the target
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| // instruction set for the code generator.
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| //
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| //===----------------------------------------------------------------------===//
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| 
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| #include "CodeGenDAGPatterns.h"
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| #include "CodeGenInstruction.h"
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| #include "CodeGenSchedule.h"
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| #include "CodeGenTarget.h"
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| #include "SequenceToOffsetTable.h"
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| #include "TableGenBackends.h"
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| #include "llvm/ADT/ArrayRef.h"
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| #include "llvm/ADT/StringExtras.h"
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| #include "llvm/Support/Casting.h"
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| #include "llvm/Support/raw_ostream.h"
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| #include "llvm/TableGen/Error.h"
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| #include "llvm/TableGen/Record.h"
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| #include "llvm/TableGen/TableGenBackend.h"
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| #include <cassert>
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| #include <cstdint>
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| #include <map>
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| #include <string>
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| #include <utility>
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| #include <vector>
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| 
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| using namespace llvm;
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| 
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| namespace {
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| 
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| class InstrInfoEmitter {
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|   RecordKeeper &Records;
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|   CodeGenDAGPatterns CDP;
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|   const CodeGenSchedModels &SchedModels;
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| 
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| public:
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|   InstrInfoEmitter(RecordKeeper &R):
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|     Records(R), CDP(R), SchedModels(CDP.getTargetInfo().getSchedModels()) {}
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| 
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|   // run - Output the instruction set description.
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|   void run(raw_ostream &OS);
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| 
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| private:
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|   void emitEnums(raw_ostream &OS);
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| 
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|   typedef std::map<std::vector<std::string>, unsigned> OperandInfoMapTy;
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| 
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|   /// The keys of this map are maps which have OpName enum values as their keys
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|   /// and instruction operand indices as their values.  The values of this map
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|   /// are lists of instruction names.
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|   typedef std::map<std::map<unsigned, unsigned>,
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|                    std::vector<std::string>> OpNameMapTy;
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|   typedef std::map<std::string, unsigned>::iterator StrUintMapIter;
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|   void emitRecord(const CodeGenInstruction &Inst, unsigned Num,
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|                   Record *InstrInfo,
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|                   std::map<std::vector<Record*>, unsigned> &EL,
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|                   const OperandInfoMapTy &OpInfo,
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|                   raw_ostream &OS);
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|   void emitOperandTypesEnum(raw_ostream &OS, const CodeGenTarget &Target);
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|   void initOperandMapData(
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|             ArrayRef<const CodeGenInstruction *> NumberedInstructions,
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|             const std::string &Namespace,
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|             std::map<std::string, unsigned> &Operands,
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|             OpNameMapTy &OperandMap);
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|   void emitOperandNameMappings(raw_ostream &OS, const CodeGenTarget &Target,
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|             ArrayRef<const CodeGenInstruction*> NumberedInstructions);
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| 
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|   // Operand information.
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|   void EmitOperandInfo(raw_ostream &OS, OperandInfoMapTy &OperandInfoIDs);
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|   std::vector<std::string> GetOperandInfo(const CodeGenInstruction &Inst);
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| };
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| 
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| } // end anonymous namespace
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| 
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| static void PrintDefList(const std::vector<Record*> &Uses,
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|                          unsigned Num, raw_ostream &OS) {
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|   OS << "static const MCPhysReg ImplicitList" << Num << "[] = { ";
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|   for (Record *U : Uses)
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|     OS << getQualifiedName(U) << ", ";
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|   OS << "0 };\n";
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| }
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| 
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| //===----------------------------------------------------------------------===//
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| // Operand Info Emission.
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| //===----------------------------------------------------------------------===//
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| 
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| std::vector<std::string>
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| InstrInfoEmitter::GetOperandInfo(const CodeGenInstruction &Inst) {
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|   std::vector<std::string> Result;
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| 
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|   for (auto &Op : Inst.Operands) {
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|     // Handle aggregate operands and normal operands the same way by expanding
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|     // either case into a list of operands for this op.
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|     std::vector<CGIOperandList::OperandInfo> OperandList;
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| 
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|     // This might be a multiple operand thing.  Targets like X86 have
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|     // registers in their multi-operand operands.  It may also be an anonymous
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|     // operand, which has a single operand, but no declared class for the
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|     // operand.
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|     DagInit *MIOI = Op.MIOperandInfo;
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| 
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|     if (!MIOI || MIOI->getNumArgs() == 0) {
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|       // Single, anonymous, operand.
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|       OperandList.push_back(Op);
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|     } else {
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|       for (unsigned j = 0, e = Op.MINumOperands; j != e; ++j) {
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|         OperandList.push_back(Op);
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| 
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|         auto *OpR = cast<DefInit>(MIOI->getArg(j))->getDef();
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|         OperandList.back().Rec = OpR;
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|       }
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|     }
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| 
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|     for (unsigned j = 0, e = OperandList.size(); j != e; ++j) {
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|       Record *OpR = OperandList[j].Rec;
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|       std::string Res;
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| 
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|       if (OpR->isSubClassOf("RegisterOperand"))
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|         OpR = OpR->getValueAsDef("RegClass");
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|       if (OpR->isSubClassOf("RegisterClass"))
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|         Res += getQualifiedName(OpR) + "RegClassID, ";
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|       else if (OpR->isSubClassOf("PointerLikeRegClass"))
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|         Res += utostr(OpR->getValueAsInt("RegClassKind")) + ", ";
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|       else
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|         // -1 means the operand does not have a fixed register class.
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|         Res += "-1, ";
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| 
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|       // Fill in applicable flags.
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|       Res += "0";
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| 
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|       // Ptr value whose register class is resolved via callback.
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|       if (OpR->isSubClassOf("PointerLikeRegClass"))
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|         Res += "|(1<<MCOI::LookupPtrRegClass)";
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| 
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|       // Predicate operands.  Check to see if the original unexpanded operand
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|       // was of type PredicateOp.
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|       if (Op.Rec->isSubClassOf("PredicateOp"))
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|         Res += "|(1<<MCOI::Predicate)";
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| 
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|       // Optional def operands.  Check to see if the original unexpanded operand
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|       // was of type OptionalDefOperand.
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|       if (Op.Rec->isSubClassOf("OptionalDefOperand"))
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|         Res += "|(1<<MCOI::OptionalDef)";
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| 
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|       // Fill in operand type.
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|       Res += ", ";
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|       assert(!Op.OperandType.empty() && "Invalid operand type.");
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|       Res += Op.OperandType;
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| 
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|       // Fill in constraint info.
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|       Res += ", ";
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| 
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|       const CGIOperandList::ConstraintInfo &Constraint =
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|         Op.Constraints[j];
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|       if (Constraint.isNone())
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|         Res += "0";
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|       else if (Constraint.isEarlyClobber())
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|         Res += "(1 << MCOI::EARLY_CLOBBER)";
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|       else {
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|         assert(Constraint.isTied());
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|         Res += "((" + utostr(Constraint.getTiedOperand()) +
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|                     " << 16) | (1 << MCOI::TIED_TO))";
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|       }
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| 
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|       Result.push_back(Res);
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|     }
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|   }
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| 
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|   return Result;
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| }
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| 
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| void InstrInfoEmitter::EmitOperandInfo(raw_ostream &OS,
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|                                        OperandInfoMapTy &OperandInfoIDs) {
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|   // ID #0 is for no operand info.
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|   unsigned OperandListNum = 0;
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|   OperandInfoIDs[std::vector<std::string>()] = ++OperandListNum;
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| 
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|   OS << "\n";
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|   const CodeGenTarget &Target = CDP.getTargetInfo();
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|   for (const CodeGenInstruction *Inst : Target.getInstructionsByEnumValue()) {
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|     std::vector<std::string> OperandInfo = GetOperandInfo(*Inst);
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|     unsigned &N = OperandInfoIDs[OperandInfo];
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|     if (N != 0) continue;
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| 
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|     N = ++OperandListNum;
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|     OS << "static const MCOperandInfo OperandInfo" << N << "[] = { ";
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|     for (const std::string &Info : OperandInfo)
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|       OS << "{ " << Info << " }, ";
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|     OS << "};\n";
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|   }
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| }
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| 
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| /// Initialize data structures for generating operand name mappings.
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| /// 
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| /// \param Operands [out] A map used to generate the OpName enum with operand
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| ///        names as its keys and operand enum values as its values.
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| /// \param OperandMap [out] A map for representing the operand name mappings for
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| ///        each instructions.  This is used to generate the OperandMap table as
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| ///        well as the getNamedOperandIdx() function.
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| void InstrInfoEmitter::initOperandMapData(
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|         ArrayRef<const CodeGenInstruction *> NumberedInstructions,
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|         const std::string &Namespace,
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|         std::map<std::string, unsigned> &Operands,
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|         OpNameMapTy &OperandMap) {
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|   unsigned NumOperands = 0;
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|   for (const CodeGenInstruction *Inst : NumberedInstructions) {
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|     if (!Inst->TheDef->getValueAsBit("UseNamedOperandTable"))
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|       continue;
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|     std::map<unsigned, unsigned> OpList;
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|     for (const auto &Info : Inst->Operands) {
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|       StrUintMapIter I = Operands.find(Info.Name);
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| 
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|       if (I == Operands.end()) {
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|         I = Operands.insert(Operands.begin(),
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|                     std::pair<std::string, unsigned>(Info.Name, NumOperands++));
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|       }
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|       OpList[I->second] = Info.MIOperandNo;
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|     }
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|     OperandMap[OpList].push_back(Namespace + "::" +
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|                                  Inst->TheDef->getName().str());
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|   }
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| }
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| 
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| /// Generate a table and function for looking up the indices of operands by
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| /// name.
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| ///
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| /// This code generates:
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| /// - An enum in the llvm::TargetNamespace::OpName namespace, with one entry
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| ///   for each operand name.
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| /// - A 2-dimensional table called OperandMap for mapping OpName enum values to
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| ///   operand indices.
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| /// - A function called getNamedOperandIdx(uint16_t Opcode, uint16_t NamedIdx)
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| ///   for looking up the operand index for an instruction, given a value from
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| ///   OpName enum
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| void InstrInfoEmitter::emitOperandNameMappings(raw_ostream &OS,
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|            const CodeGenTarget &Target,
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|            ArrayRef<const CodeGenInstruction*> NumberedInstructions) {
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|   const std::string &Namespace = Target.getInstNamespace();
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|   std::string OpNameNS = "OpName";
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|   // Map of operand names to their enumeration value.  This will be used to
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|   // generate the OpName enum.
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|   std::map<std::string, unsigned> Operands;
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|   OpNameMapTy OperandMap;
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| 
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|   initOperandMapData(NumberedInstructions, Namespace, Operands, OperandMap);
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| 
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|   OS << "#ifdef GET_INSTRINFO_OPERAND_ENUM\n";
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|   OS << "#undef GET_INSTRINFO_OPERAND_ENUM\n";
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|   OS << "namespace llvm {\n";
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|   OS << "namespace " << Namespace << " {\n";
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|   OS << "namespace " << OpNameNS << " {\n";
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|   OS << "enum {\n";
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|   for (const auto &Op : Operands)
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|     OS << "  " << Op.first << " = " << Op.second << ",\n";
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| 
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|   OS << "OPERAND_LAST";
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|   OS << "\n};\n";
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|   OS << "} // end namespace OpName\n";
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|   OS << "} // end namespace " << Namespace << "\n";
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|   OS << "} // end namespace llvm\n";
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|   OS << "#endif //GET_INSTRINFO_OPERAND_ENUM\n\n";
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| 
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|   OS << "#ifdef GET_INSTRINFO_NAMED_OPS\n";
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|   OS << "#undef GET_INSTRINFO_NAMED_OPS\n";
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|   OS << "namespace llvm {\n";
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|   OS << "namespace " << Namespace << " {\n";
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|   OS << "LLVM_READONLY\n";
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|   OS << "int16_t getNamedOperandIdx(uint16_t Opcode, uint16_t NamedIdx) {\n";
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|   if (!Operands.empty()) {
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|     OS << "  static const int16_t OperandMap [][" << Operands.size()
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|        << "] = {\n";
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|     for (const auto &Entry : OperandMap) {
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|       const std::map<unsigned, unsigned> &OpList = Entry.first;
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|       OS << "{";
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| 
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|       // Emit a row of the OperandMap table
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|       for (unsigned i = 0, e = Operands.size(); i != e; ++i)
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|         OS << (OpList.count(i) == 0 ? -1 : (int)OpList.find(i)->second) << ", ";
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| 
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|       OS << "},\n";
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|     }
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|     OS << "};\n";
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| 
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|     OS << "  switch(Opcode) {\n";
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|     unsigned TableIndex = 0;
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|     for (const auto &Entry : OperandMap) {
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|       for (const std::string &Name : Entry.second)
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|         OS << "  case " << Name << ":\n";
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| 
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|       OS << "    return OperandMap[" << TableIndex++ << "][NamedIdx];\n";
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|     }
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|     OS << "    default: return -1;\n";
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|     OS << "  }\n";
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|   } else {
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|     // There are no operands, so no need to emit anything
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|     OS << "  return -1;\n";
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|   }
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|   OS << "}\n";
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|   OS << "} // end namespace " << Namespace << "\n";
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|   OS << "} // end namespace llvm\n";
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|   OS << "#endif //GET_INSTRINFO_NAMED_OPS\n\n";
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| }
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| 
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| /// Generate an enum for all the operand types for this target, under the
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| /// llvm::TargetNamespace::OpTypes namespace.
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| /// Operand types are all definitions derived of the Operand Target.td class.
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| void InstrInfoEmitter::emitOperandTypesEnum(raw_ostream &OS,
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|                                             const CodeGenTarget &Target) {
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| 
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|   const std::string &Namespace = Target.getInstNamespace();
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|   std::vector<Record *> Operands = Records.getAllDerivedDefinitions("Operand");
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| 
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|   OS << "#ifdef GET_INSTRINFO_OPERAND_TYPES_ENUM\n";
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|   OS << "#undef GET_INSTRINFO_OPERAND_TYPES_ENUM\n";
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|   OS << "namespace llvm {\n";
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|   OS << "namespace " << Namespace << " {\n";
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|   OS << "namespace OpTypes {\n";
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|   OS << "enum OperandType {\n";
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| 
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|   unsigned EnumVal = 0;
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|   for (const Record *Op : Operands) {
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|     if (!Op->isAnonymous())
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|       OS << "  " << Op->getName() << " = " << EnumVal << ",\n";
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|     ++EnumVal;
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|   }
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| 
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|   OS << "  OPERAND_TYPE_LIST_END" << "\n};\n";
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|   OS << "} // end namespace OpTypes\n";
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|   OS << "} // end namespace " << Namespace << "\n";
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|   OS << "} // end namespace llvm\n";
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|   OS << "#endif // GET_INSTRINFO_OPERAND_TYPES_ENUM\n\n";
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| }
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| 
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| //===----------------------------------------------------------------------===//
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| // Main Output.
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| //===----------------------------------------------------------------------===//
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| 
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| // run - Emit the main instruction description records for the target...
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| void InstrInfoEmitter::run(raw_ostream &OS) {
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|   emitSourceFileHeader("Target Instruction Enum Values and Descriptors", OS);
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|   emitEnums(OS);
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| 
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|   OS << "#ifdef GET_INSTRINFO_MC_DESC\n";
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|   OS << "#undef GET_INSTRINFO_MC_DESC\n";
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| 
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|   OS << "namespace llvm {\n\n";
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| 
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|   CodeGenTarget &Target = CDP.getTargetInfo();
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|   const std::string &TargetName = Target.getName();
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|   Record *InstrInfo = Target.getInstructionSet();
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| 
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|   // Keep track of all of the def lists we have emitted already.
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|   std::map<std::vector<Record*>, unsigned> EmittedLists;
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|   unsigned ListNumber = 0;
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| 
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|   // Emit all of the instruction's implicit uses and defs.
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|   for (const CodeGenInstruction *II : Target.getInstructionsByEnumValue()) {
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|     Record *Inst = II->TheDef;
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|     std::vector<Record*> Uses = Inst->getValueAsListOfDefs("Uses");
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|     if (!Uses.empty()) {
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|       unsigned &IL = EmittedLists[Uses];
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|       if (!IL) PrintDefList(Uses, IL = ++ListNumber, OS);
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|     }
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|     std::vector<Record*> Defs = Inst->getValueAsListOfDefs("Defs");
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|     if (!Defs.empty()) {
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|       unsigned &IL = EmittedLists[Defs];
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|       if (!IL) PrintDefList(Defs, IL = ++ListNumber, OS);
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|     }
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|   }
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| 
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|   OperandInfoMapTy OperandInfoIDs;
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| 
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|   // Emit all of the operand info records.
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|   EmitOperandInfo(OS, OperandInfoIDs);
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| 
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|   // Emit all of the MCInstrDesc records in their ENUM ordering.
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|   //
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|   OS << "\nextern const MCInstrDesc " << TargetName << "Insts[] = {\n";
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|   ArrayRef<const CodeGenInstruction*> NumberedInstructions =
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|     Target.getInstructionsByEnumValue();
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| 
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|   SequenceToOffsetTable<std::string> InstrNames;
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|   unsigned Num = 0;
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|   for (const CodeGenInstruction *Inst : NumberedInstructions) {
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|     // Keep a list of the instruction names.
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|     InstrNames.add(Inst->TheDef->getName());
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|     // Emit the record into the table.
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|     emitRecord(*Inst, Num++, InstrInfo, EmittedLists, OperandInfoIDs, OS);
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|   }
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|   OS << "};\n\n";
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| 
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|   // Emit the array of instruction names.
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|   InstrNames.layout();
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|   OS << "extern const char " << TargetName << "InstrNameData[] = {\n";
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|   InstrNames.emit(OS, printChar);
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|   OS << "};\n\n";
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| 
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|   OS << "extern const unsigned " << TargetName <<"InstrNameIndices[] = {";
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|   Num = 0;
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|   for (const CodeGenInstruction *Inst : NumberedInstructions) {
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|     // Newline every eight entries.
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|     if (Num % 8 == 0)
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|       OS << "\n    ";
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|     OS << InstrNames.get(Inst->TheDef->getName()) << "U, ";
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|     ++Num;
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|   }
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| 
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|   OS << "\n};\n\n";
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| 
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|   // MCInstrInfo initialization routine.
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|   OS << "static inline void Init" << TargetName
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|      << "MCInstrInfo(MCInstrInfo *II) {\n";
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|   OS << "  II->InitMCInstrInfo(" << TargetName << "Insts, "
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|      << TargetName << "InstrNameIndices, " << TargetName << "InstrNameData, "
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|      << NumberedInstructions.size() << ");\n}\n\n";
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| 
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|   OS << "} // end llvm namespace\n";
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| 
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|   OS << "#endif // GET_INSTRINFO_MC_DESC\n\n";
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| 
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|   // Create a TargetInstrInfo subclass to hide the MC layer initialization.
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|   OS << "#ifdef GET_INSTRINFO_HEADER\n";
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|   OS << "#undef GET_INSTRINFO_HEADER\n";
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| 
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|   std::string ClassName = TargetName + "GenInstrInfo";
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|   OS << "namespace llvm {\n";
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|   OS << "struct " << ClassName << " : public TargetInstrInfo {\n"
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|      << "  explicit " << ClassName
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|      << "(int CFSetupOpcode = -1, int CFDestroyOpcode = -1, int CatchRetOpcode = -1, int ReturnOpcode = -1);\n"
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|      << "  ~" << ClassName << "() override = default;\n"
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|      << "};\n";
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|   OS << "} // end llvm namespace\n";
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| 
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|   OS << "#endif // GET_INSTRINFO_HEADER\n\n";
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| 
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|   OS << "#ifdef GET_INSTRINFO_CTOR_DTOR\n";
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|   OS << "#undef GET_INSTRINFO_CTOR_DTOR\n";
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| 
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|   OS << "namespace llvm {\n";
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|   OS << "extern const MCInstrDesc " << TargetName << "Insts[];\n";
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|   OS << "extern const unsigned " << TargetName << "InstrNameIndices[];\n";
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|   OS << "extern const char " << TargetName << "InstrNameData[];\n";
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|   OS << ClassName << "::" << ClassName
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|      << "(int CFSetupOpcode, int CFDestroyOpcode, int CatchRetOpcode, int ReturnOpcode)\n"
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|      << "  : TargetInstrInfo(CFSetupOpcode, CFDestroyOpcode, CatchRetOpcode, ReturnOpcode) {\n"
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|      << "  InitMCInstrInfo(" << TargetName << "Insts, " << TargetName
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|      << "InstrNameIndices, " << TargetName << "InstrNameData, "
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|      << NumberedInstructions.size() << ");\n}\n";
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|   OS << "} // end llvm namespace\n";
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| 
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|   OS << "#endif // GET_INSTRINFO_CTOR_DTOR\n\n";
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| 
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|   emitOperandNameMappings(OS, Target, NumberedInstructions);
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| 
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|   emitOperandTypesEnum(OS, Target);
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| }
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| 
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| void InstrInfoEmitter::emitRecord(const CodeGenInstruction &Inst, unsigned Num,
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|                                   Record *InstrInfo,
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|                          std::map<std::vector<Record*>, unsigned> &EmittedLists,
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|                                   const OperandInfoMapTy &OpInfo,
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|                                   raw_ostream &OS) {
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|   int MinOperands = 0;
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|   if (!Inst.Operands.empty())
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|     // Each logical operand can be multiple MI operands.
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|     MinOperands = Inst.Operands.back().MIOperandNo +
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|                   Inst.Operands.back().MINumOperands;
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| 
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|   OS << "  { ";
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|   OS << Num << ",\t" << MinOperands << ",\t"
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|      << Inst.Operands.NumDefs << ",\t"
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|      << Inst.TheDef->getValueAsInt("Size") << ",\t"
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|      << SchedModels.getSchedClassIdx(Inst) << ",\t0";
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| 
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|   // Emit all of the target independent flags...
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|   if (Inst.isPseudo)           OS << "|(1ULL<<MCID::Pseudo)";
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|   if (Inst.isReturn)           OS << "|(1ULL<<MCID::Return)";
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|   if (Inst.isBranch)           OS << "|(1ULL<<MCID::Branch)";
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|   if (Inst.isIndirectBranch)   OS << "|(1ULL<<MCID::IndirectBranch)";
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|   if (Inst.isCompare)          OS << "|(1ULL<<MCID::Compare)";
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|   if (Inst.isMoveImm)          OS << "|(1ULL<<MCID::MoveImm)";
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|   if (Inst.isBitcast)          OS << "|(1ULL<<MCID::Bitcast)";
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|   if (Inst.isAdd)              OS << "|(1ULL<<MCID::Add)";
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|   if (Inst.isSelect)           OS << "|(1ULL<<MCID::Select)";
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|   if (Inst.isBarrier)          OS << "|(1ULL<<MCID::Barrier)";
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|   if (Inst.hasDelaySlot)       OS << "|(1ULL<<MCID::DelaySlot)";
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|   if (Inst.isCall)             OS << "|(1ULL<<MCID::Call)";
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|   if (Inst.canFoldAsLoad)      OS << "|(1ULL<<MCID::FoldableAsLoad)";
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|   if (Inst.mayLoad)            OS << "|(1ULL<<MCID::MayLoad)";
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|   if (Inst.mayStore)           OS << "|(1ULL<<MCID::MayStore)";
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|   if (Inst.isPredicable)       OS << "|(1ULL<<MCID::Predicable)";
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|   if (Inst.isConvertibleToThreeAddress) OS << "|(1ULL<<MCID::ConvertibleTo3Addr)";
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|   if (Inst.isCommutable)       OS << "|(1ULL<<MCID::Commutable)";
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|   if (Inst.isTerminator)       OS << "|(1ULL<<MCID::Terminator)";
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|   if (Inst.isReMaterializable) OS << "|(1ULL<<MCID::Rematerializable)";
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|   if (Inst.isNotDuplicable)    OS << "|(1ULL<<MCID::NotDuplicable)";
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|   if (Inst.Operands.hasOptionalDef) OS << "|(1ULL<<MCID::HasOptionalDef)";
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|   if (Inst.usesCustomInserter) OS << "|(1ULL<<MCID::UsesCustomInserter)";
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|   if (Inst.hasPostISelHook)    OS << "|(1ULL<<MCID::HasPostISelHook)";
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|   if (Inst.Operands.isVariadic)OS << "|(1ULL<<MCID::Variadic)";
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|   if (Inst.hasSideEffects)     OS << "|(1ULL<<MCID::UnmodeledSideEffects)";
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|   if (Inst.isAsCheapAsAMove)   OS << "|(1ULL<<MCID::CheapAsAMove)";
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|   if (Inst.hasExtraSrcRegAllocReq) OS << "|(1ULL<<MCID::ExtraSrcRegAllocReq)";
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|   if (Inst.hasExtraDefRegAllocReq) OS << "|(1ULL<<MCID::ExtraDefRegAllocReq)";
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|   if (Inst.isRegSequence) OS << "|(1ULL<<MCID::RegSequence)";
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|   if (Inst.isExtractSubreg) OS << "|(1ULL<<MCID::ExtractSubreg)";
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|   if (Inst.isInsertSubreg) OS << "|(1ULL<<MCID::InsertSubreg)";
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|   if (Inst.isConvergent) OS << "|(1ULL<<MCID::Convergent)";
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| 
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|   // Emit all of the target-specific flags...
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|   BitsInit *TSF = Inst.TheDef->getValueAsBitsInit("TSFlags");
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|   if (!TSF)
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|     PrintFatalError("no TSFlags?");
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|   uint64_t Value = 0;
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|   for (unsigned i = 0, e = TSF->getNumBits(); i != e; ++i) {
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|     if (const auto *Bit = dyn_cast<BitInit>(TSF->getBit(i)))
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|       Value |= uint64_t(Bit->getValue()) << i;
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|     else
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|       PrintFatalError("Invalid TSFlags bit in " + Inst.TheDef->getName());
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|   }
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|   OS << ", 0x";
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|   OS.write_hex(Value);
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|   OS << "ULL, ";
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| 
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|   // Emit the implicit uses and defs lists...
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|   std::vector<Record*> UseList = Inst.TheDef->getValueAsListOfDefs("Uses");
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|   if (UseList.empty())
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|     OS << "nullptr, ";
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|   else
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|     OS << "ImplicitList" << EmittedLists[UseList] << ", ";
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| 
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|   std::vector<Record*> DefList = Inst.TheDef->getValueAsListOfDefs("Defs");
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|   if (DefList.empty())
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|     OS << "nullptr, ";
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|   else
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|     OS << "ImplicitList" << EmittedLists[DefList] << ", ";
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| 
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|   // Emit the operand info.
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|   std::vector<std::string> OperandInfo = GetOperandInfo(Inst);
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|   if (OperandInfo.empty())
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|     OS << "nullptr";
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|   else
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|     OS << "OperandInfo" << OpInfo.find(OperandInfo)->second;
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| 
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|   CodeGenTarget &Target = CDP.getTargetInfo();
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|   if (Inst.HasComplexDeprecationPredicate)
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|     // Emit a function pointer to the complex predicate method.
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|     OS << ", -1 "
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|        << ",&get" << Inst.DeprecatedReason << "DeprecationInfo";
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|   else if (!Inst.DeprecatedReason.empty())
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|     // Emit the Subtarget feature.
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|     OS << ", " << Target.getInstNamespace() << "::" << Inst.DeprecatedReason
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|        << " ,nullptr";
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|   else
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|     // Instruction isn't deprecated.
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|     OS << ", -1 ,nullptr";
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| 
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|   OS << " },  // Inst #" << Num << " = " << Inst.TheDef->getName() << "\n";
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| }
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| 
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| // emitEnums - Print out enum values for all of the instructions.
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| void InstrInfoEmitter::emitEnums(raw_ostream &OS) {
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|   OS << "#ifdef GET_INSTRINFO_ENUM\n";
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|   OS << "#undef GET_INSTRINFO_ENUM\n";
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| 
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|   OS << "namespace llvm {\n\n";
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| 
 | |
|   CodeGenTarget Target(Records);
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| 
 | |
|   // We must emit the PHI opcode first...
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|   std::string Namespace = Target.getInstNamespace();
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| 
 | |
|   if (Namespace.empty())
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|     PrintFatalError("No instructions defined!");
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| 
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|   OS << "namespace " << Namespace << " {\n";
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|   OS << "  enum {\n";
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|   unsigned Num = 0;
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|   for (const CodeGenInstruction *Inst : Target.getInstructionsByEnumValue())
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|     OS << "    " << Inst->TheDef->getName() << "\t= " << Num++ << ",\n";
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|   OS << "    INSTRUCTION_LIST_END = " << Num << "\n";
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|   OS << "  };\n\n";
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|   OS << "namespace Sched {\n";
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|   OS << "  enum {\n";
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|   Num = 0;
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|   for (const auto &Class : SchedModels.explicit_classes())
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|     OS << "    " << Class.Name << "\t= " << Num++ << ",\n";
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|   OS << "    SCHED_LIST_END = " << Num << "\n";
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|   OS << "  };\n";
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|   OS << "} // end Sched namespace\n";
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|   OS << "} // end " << Namespace << " namespace\n";
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|   OS << "} // end llvm namespace\n";
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| 
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|   OS << "#endif // GET_INSTRINFO_ENUM\n\n";
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| }
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| 
 | |
| namespace llvm {
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| 
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| void EmitInstrInfo(RecordKeeper &RK, raw_ostream &OS) {
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|   InstrInfoEmitter(RK).run(OS);
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|   EmitMapTable(RK, OS);
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| }
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| 
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| } // end llvm namespace
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