#ifndef CODEGEN_TARGET_H
#define CODEGEN_TARGET_H
#include "CodeGenRegisters.h"
#include "CodeGenInstruction.h"
#include "Record.h"
#include "llvm/Support/raw_ostream.h"
#include <algorithm>
namespace llvm {
struct CodeGenRegister;
class CodeGenTarget;
enum SDNP {
SDNPCommutative,
SDNPAssociative,
SDNPHasChain,
SDNPOutGlue,
SDNPInGlue,
SDNPOptInGlue,
SDNPMayLoad,
SDNPMayStore,
SDNPSideEffect,
SDNPMemOperand,
SDNPVariadic,
SDNPWantRoot,
SDNPWantParent
};
MVT::SimpleValueType getValueType(Record *Rec);
std::string getName(MVT::SimpleValueType T);
std::string getEnumName(MVT::SimpleValueType T);
std::string getQualifiedName(const Record *R);
class CodeGenTarget {
RecordKeeper &Records;
Record *TargetRec;
mutable DenseMap<const Record*, CodeGenInstruction*> Instructions;
mutable CodeGenRegBank *RegBank;
mutable std::vector<Record*> RegAltNameIndices;
mutable std::vector<MVT::SimpleValueType> LegalValueTypes;
void ReadRegAltNameIndices() const;
void ReadInstructions() const;
void ReadLegalValueTypes() const;
mutable std::vector<const CodeGenInstruction*> InstrsByEnum;
public:
CodeGenTarget(RecordKeeper &Records);
Record *getTargetRecord() const { return TargetRec; }
const std::string &getName() const;
std::string getInstNamespace() const;
Record *getInstructionSet() const;
Record *getAsmParser() const;
Record *getAsmWriter() const;
CodeGenRegBank &getRegBank() const;
const CodeGenRegister *getRegisterByName(StringRef Name) const;
const std::vector<Record*> &getRegAltNameIndices() const {
if (RegAltNameIndices.empty()) ReadRegAltNameIndices();
return RegAltNameIndices;
}
const std::vector<CodeGenRegisterClass> &getRegisterClasses() const {
return getRegBank().getRegClasses();
}
const CodeGenRegisterClass &getRegisterClass(Record *R) const {
return *getRegBank().getRegClass(R);
}
std::vector<MVT::SimpleValueType> getRegisterVTs(Record *R) const;
const std::vector<MVT::SimpleValueType> &getLegalValueTypes() const {
if (LegalValueTypes.empty()) ReadLegalValueTypes();
return LegalValueTypes;
}
bool isLegalValueType(MVT::SimpleValueType VT) const {
const std::vector<MVT::SimpleValueType> &LegalVTs = getLegalValueTypes();
for (unsigned i = 0, e = LegalVTs.size(); i != e; ++i)
if (LegalVTs[i] == VT) return true;
return false;
}
private:
DenseMap<const Record*, CodeGenInstruction*> &getInstructions() const {
if (Instructions.empty()) ReadInstructions();
return Instructions;
}
public:
CodeGenInstruction &getInstruction(const Record *InstRec) const {
if (Instructions.empty()) ReadInstructions();
DenseMap<const Record*, CodeGenInstruction*>::iterator I =
Instructions.find(InstRec);
assert(I != Instructions.end() && "Not an instruction");
return *I->second;
}
const std::vector<const CodeGenInstruction*> &
getInstructionsByEnumValue() const {
if (InstrsByEnum.empty()) ComputeInstrsByEnum();
return InstrsByEnum;
}
typedef std::vector<const CodeGenInstruction*>::const_iterator inst_iterator;
inst_iterator inst_begin() const{return getInstructionsByEnumValue().begin();}
inst_iterator inst_end() const { return getInstructionsByEnumValue().end(); }
bool isLittleEndianEncoding() const;
private:
void ComputeInstrsByEnum() const;
};
class ComplexPattern {
MVT::SimpleValueType Ty;
unsigned NumOperands;
std::string SelectFunc;
std::vector<Record*> RootNodes;
unsigned Properties; public:
ComplexPattern() : NumOperands(0) {}
ComplexPattern(Record *R);
MVT::SimpleValueType getValueType() const { return Ty; }
unsigned getNumOperands() const { return NumOperands; }
const std::string &getSelectFunc() const { return SelectFunc; }
const std::vector<Record*> &getRootNodes() const {
return RootNodes;
}
bool hasProperty(enum SDNP Prop) const { return Properties & (1 << Prop); }
};
}
#endif