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1//===- SystemZConstantPoolValue.h - SystemZ constant-pool value -*- C++ -*-===//2//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-exception6//7//===----------------------------------------------------------------------===//8 9#ifndef LLVM_LIB_TARGET_SYSTEMZ_SYSTEMZCONSTANTPOOLVALUE_H10#define LLVM_LIB_TARGET_SYSTEMZ_SYSTEMZCONSTANTPOOLVALUE_H11 12#include "llvm/CodeGen/MachineConstantPool.h"13#include "llvm/Support/ErrorHandling.h"14 15namespace llvm {16 17class GlobalValue;18 19namespace SystemZCP {20enum SystemZCPModifier {21 TLSGD,22 TLSLDM,23 DTPOFF,24 NTPOFF25};26} // end namespace SystemZCP27 28/// A SystemZ-specific constant pool value. At present, the only29/// defined constant pool values are module IDs or offsets of30/// thread-local variables (written x@TLSGD, x@TLSLDM, x@DTPOFF,31/// or x@NTPOFF).32class SystemZConstantPoolValue : public MachineConstantPoolValue {33 const GlobalValue *GV;34 SystemZCP::SystemZCPModifier Modifier;35 36protected:37 SystemZConstantPoolValue(const GlobalValue *GV,38 SystemZCP::SystemZCPModifier Modifier);39 40public:41 static SystemZConstantPoolValue *42 Create(const GlobalValue *GV, SystemZCP::SystemZCPModifier Modifier);43 44 // Override MachineConstantPoolValue.45 int getExistingMachineCPValue(MachineConstantPool *CP,46 Align Alignment) override;47 void addSelectionDAGCSEId(FoldingSetNodeID &ID) override;48 void print(raw_ostream &O) const override;49 50 // Access SystemZ-specific fields.51 const GlobalValue *getGlobalValue() const { return GV; }52 SystemZCP::SystemZCPModifier getModifier() const { return Modifier; }53};54 55} // end namespace llvm56 57#endif58