PseudoSourceValue.h [plain text]
#ifndef LLVM_CODEGEN_PSEUDOSOURCEVALUE_H
#define LLVM_CODEGEN_PSEUDOSOURCEVALUE_H
#include "llvm/ADT/StringMap.h"
#include "llvm/IR/GlobalValue.h"
#include "llvm/IR/Value.h"
#include "llvm/IR/ValueMap.h"
#include <map>
namespace llvm {
class MachineFrameInfo;
class MachineMemOperand;
class raw_ostream;
raw_ostream &operator<<(raw_ostream &OS, const MachineMemOperand &MMO);
class PseudoSourceValue;
raw_ostream &operator<<(raw_ostream &OS, const PseudoSourceValue* PSV);
class PseudoSourceValue {
public:
enum PSVKind {
Stack,
GOT,
JumpTable,
ConstantPool,
FixedStack,
GlobalValueCallEntry,
ExternalSymbolCallEntry
};
private:
PSVKind Kind;
friend raw_ostream &llvm::operator<<(raw_ostream &OS,
const PseudoSourceValue* PSV);
friend class MachineMemOperand;
virtual void printCustom(raw_ostream &O) const;
public:
explicit PseudoSourceValue(PSVKind Kind);
virtual ~PseudoSourceValue();
PSVKind kind() const { return Kind; }
bool isStack() const { return Kind == Stack; }
bool isGOT() const { return Kind == GOT; }
bool isConstantPool() const { return Kind == ConstantPool; }
bool isJumpTable() const { return Kind == JumpTable; }
virtual bool isConstant(const MachineFrameInfo *) const;
virtual bool isAliased(const MachineFrameInfo *) const;
virtual bool mayAlias(const MachineFrameInfo *) const;
};
class FixedStackPseudoSourceValue : public PseudoSourceValue {
const int FI;
public:
explicit FixedStackPseudoSourceValue(int FI)
: PseudoSourceValue(FixedStack), FI(FI) {}
static inline bool classof(const PseudoSourceValue *V) {
return V->kind() == FixedStack;
}
bool isConstant(const MachineFrameInfo *MFI) const override;
bool isAliased(const MachineFrameInfo *MFI) const override;
bool mayAlias(const MachineFrameInfo *) const override;
void printCustom(raw_ostream &OS) const override;
int getFrameIndex() const { return FI; }
};
class CallEntryPseudoSourceValue : public PseudoSourceValue {
protected:
CallEntryPseudoSourceValue(PSVKind Kind);
public:
bool isConstant(const MachineFrameInfo *) const override;
bool isAliased(const MachineFrameInfo *) const override;
bool mayAlias(const MachineFrameInfo *) const override;
};
class GlobalValuePseudoSourceValue : public CallEntryPseudoSourceValue {
const GlobalValue *GV;
public:
GlobalValuePseudoSourceValue(const GlobalValue *GV);
static inline bool classof(const PseudoSourceValue *V) {
return V->kind() == GlobalValueCallEntry;
}
const GlobalValue *getValue() const { return GV; }
};
class ExternalSymbolPseudoSourceValue : public CallEntryPseudoSourceValue {
const char *ES;
public:
ExternalSymbolPseudoSourceValue(const char *ES);
static inline bool classof(const PseudoSourceValue *V) {
return V->kind() == ExternalSymbolCallEntry;
}
const char *getSymbol() const { return ES; }
};
class PseudoSourceValueManager {
const PseudoSourceValue StackPSV, GOTPSV, JumpTablePSV, ConstantPoolPSV;
std::map<int, std::unique_ptr<FixedStackPseudoSourceValue>> FSValues;
StringMap<std::unique_ptr<const ExternalSymbolPseudoSourceValue>>
ExternalCallEntries;
ValueMap<const GlobalValue *,
std::unique_ptr<const GlobalValuePseudoSourceValue>>
GlobalCallEntries;
public:
PseudoSourceValueManager();
const PseudoSourceValue *getStack();
const PseudoSourceValue *getGOT();
const PseudoSourceValue *getConstantPool();
const PseudoSourceValue *getJumpTable();
const PseudoSourceValue *getFixedStack(int FI);
const PseudoSourceValue *getGlobalValueCallEntry(const GlobalValue *GV);
const PseudoSourceValue *getExternalSymbolCallEntry(const char *ES);
};
}
#endif