lib/Target/Mips/MipsMCSymbolRefExpr.h

   1 //===-- MipsMCSymbolRefExpr.h - Mips specific MCSymbolRefExpr class -------===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is distributed under the University of Illinois Open Source
   6 // License. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9
  10 #ifndef MIPSMCSYMBOLREFEXPR_H
  11 #define MIPSMCSYMBOLREFEXPR_H
  12 #include "llvm/MC/MCExpr.h"
  13
  14 namespace llvm {
  15
  16 class MipsMCSymbolRefExpr : public MCTargetExpr {
  17 public:
  18   enum VariantKind {
  19     VK_Mips_None,
  20     VK_Mips_GPREL,
  21     VK_Mips_GOT_CALL,
  22     VK_Mips_GOT,
  23     VK_Mips_ABS_HI,
  24     VK_Mips_ABS_LO,
  25     VK_Mips_TLSGD,
  26     VK_Mips_GOTTPREL,
  27     VK_Mips_TPREL_HI,
  28     VK_Mips_TPREL_LO
  29   };
  30
  31 private:
  32   const VariantKind Kind;
  33   const MCSymbol *Symbol;
  34   int Offset;
  35
  36   explicit MipsMCSymbolRefExpr(VariantKind _Kind, const MCSymbol *_Symbol,
  37                                int _Offset)
  38     : Kind(_Kind), Symbol(_Symbol), Offset(_Offset) {}
  39
  40 public:
  41   static const MipsMCSymbolRefExpr *Create(VariantKind Kind,
  42                                            const MCSymbol *Symbol, int Offset,
  43                                            MCContext &Ctx);
  44
  45   void PrintImpl(raw_ostream &OS) const;
  46   bool EvaluateAsRelocatableImpl(MCValue &Res,
  47                                  const MCAsmLayout *Layout) const;
  48   void AddValueSymbols(MCAssembler *) const;
  49   const MCSection *FindAssociatedSection() const;
  50
  51   static bool classof(const MCExpr *E) {
  52     return E->getKind() == MCExpr::Target;
  53   }
  54
  55   static bool classof(const MipsMCSymbolRefExpr *) { return true; }
  56
  57   int getOffset() const { return Offset; }
  58   void setOffset(int O) { Offset = O; }
  59 };
  60 } // end namespace llvm
  61
  62 #endif