HexagonMCExpr.h

Go to the documentation of this file.

//==- HexagonMCExpr.h - Hexagon specific MC expression classes --*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
 
#ifndef LLVM_LIB_TARGET_HEXAGON_HEXAGONMCEXPR_H
#define LLVM_LIB_TARGET_HEXAGON_HEXAGONMCEXPR_H
 
#include "llvm/MC/MCExpr.h"
 
namespace llvm {
class HexagonMCExpr : public MCTargetExpr {
public:
  enum VariantKind : uint8_t {
    VK_None,
 
    VK_DTPREL = MCSymbolRefExpr::FirstTargetSpecifier,
    VK_GD_GOT,
    VK_GD_PLT,
    VK_GOT,
    VK_GOTREL,
    VK_IE,
    VK_IE_GOT,
    VK_LD_GOT,
    VK_LD_PLT,
    VK_PCREL,
    VK_PLT,
    VK_TPREL,
 
    VK_LO16,
    VK_HI16,
    VK_GPREL,
  };
 
  static HexagonMCExpr *create(MCExpr const *Expr, MCContext &Ctx);
  void printImpl(raw_ostream &OS, const MCAsmInfo *MAI) const override;
  bool evaluateAsRelocatableImpl(MCValue &Res,
                                 const MCAssembler *Asm) const override;
  void visitUsedExpr(MCStreamer &Streamer) const override;
  MCFragment *findAssociatedFragment() const override;
  MCExpr const *getExpr() const;
  void setMustExtend(bool Val = true);
  bool mustExtend() const;
  void setMustNotExtend(bool Val = true);
  bool mustNotExtend() const;
  void setS27_2_reloc(bool Val = true);
  bool s27_2_reloc() const;
  void setSignMismatch(bool Val = true);
  bool signMismatch() const;
 
private:
  HexagonMCExpr(MCExpr const *Expr);
  MCExpr const *Expr;
  bool MustNotExtend;
  bool MustExtend;
  bool S27_2_reloc;
  bool SignMismatch;
};
} // end namespace llvm
 
#endif // LLVM_LIB_TARGET_HEXAGON_HEXAGONMCEXPR_H