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//===- SystemZConstantPoolValue.h - SystemZ constant-pool value -*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_LIB_TARGET_SYSTEMZ_SYSTEMZCONSTANTPOOLVALUE_H
#define LLVM_LIB_TARGET_SYSTEMZ_SYSTEMZCONSTANTPOOLVALUE_H
#include "llvm/CodeGen/MachineConstantPool.h"
#include "llvm/Support/ErrorHandling.h"
namespace llvm {
class GlobalValue;
namespace SystemZCP {
enum SystemZCPModifier {
TLSGD,
TLSLDM,
DTPOFF,
NTPOFF
};
} // end namespace SystemZCP
/// A SystemZ-specific constant pool value. At present, the only
/// defined constant pool values are module IDs or offsets of
/// thread-local variables (written x@TLSGD, x@TLSLDM, x@DTPOFF,
/// or x@NTPOFF).
class SystemZConstantPoolValue : public MachineConstantPoolValue {
const GlobalValue *GV;
SystemZCP::SystemZCPModifier Modifier;
protected:
SystemZConstantPoolValue(const GlobalValue *GV,
SystemZCP::SystemZCPModifier Modifier);
public:
static SystemZConstantPoolValue *
Create(const GlobalValue *GV, SystemZCP::SystemZCPModifier Modifier);
// Override MachineConstantPoolValue.
unsigned getRelocationInfo() const override;
int getExistingMachineCPValue(MachineConstantPool *CP,
unsigned Alignment) override;
void addSelectionDAGCSEId(FoldingSetNodeID &ID) override;
void print(raw_ostream &O) const override;
// Access SystemZ-specific fields.
const GlobalValue *getGlobalValue() const { return GV; }
SystemZCP::SystemZCPModifier getModifier() const { return Modifier; }
};
} // end namespace llvm
#endif
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