lib/Target/Sparc/MCTargetDesc/SparcMCExpr.h

   1 //====- SparcMCExpr.h - Sparc specific MC expression classes --*- 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-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8 //
   9 // This file describes Sparc-specific MCExprs, used for modifiers like
  10 // "%hi" or "%lo" etc.,
  11 //
  12 //===----------------------------------------------------------------------===//
  13
  14 #ifndef LLVM_LIB_TARGET_SPARC_MCTARGETDESC_SPARCMCEXPR_H
  15 #define LLVM_LIB_TARGET_SPARC_MCTARGETDESC_SPARCMCEXPR_H
  16
  17 #include "SparcFixupKinds.h"
  18 #include "llvm/MC/MCExpr.h"
  19
  20 namespace llvm {
  21
  22 class StringRef;
  23 class SparcMCExpr : public MCTargetExpr {
  24 public:
  25   enum VariantKind {
  26     VK_Sparc_None,
  27     VK_Sparc_LO,
  28     VK_Sparc_HI,
  29     VK_Sparc_H44,
  30     VK_Sparc_M44,
  31     VK_Sparc_L44,
  32     VK_Sparc_HH,
  33     VK_Sparc_HM,
  34     VK_Sparc_PC22,
  35     VK_Sparc_PC10,
  36     VK_Sparc_GOT22,
  37     VK_Sparc_GOT10,
  38     VK_Sparc_GOT13,
  39     VK_Sparc_13,
  40     VK_Sparc_WPLT30,
  41     VK_Sparc_R_DISP32,
  42     VK_Sparc_TLS_GD_HI22,
  43     VK_Sparc_TLS_GD_LO10,
  44     VK_Sparc_TLS_GD_ADD,
  45     VK_Sparc_TLS_GD_CALL,
  46     VK_Sparc_TLS_LDM_HI22,
  47     VK_Sparc_TLS_LDM_LO10,
  48     VK_Sparc_TLS_LDM_ADD,
  49     VK_Sparc_TLS_LDM_CALL,
  50     VK_Sparc_TLS_LDO_HIX22,
  51     VK_Sparc_TLS_LDO_LOX10,
  52     VK_Sparc_TLS_LDO_ADD,
  53     VK_Sparc_TLS_IE_HI22,
  54     VK_Sparc_TLS_IE_LO10,
  55     VK_Sparc_TLS_IE_LD,
  56     VK_Sparc_TLS_IE_LDX,
  57     VK_Sparc_TLS_IE_ADD,
  58     VK_Sparc_TLS_LE_HIX22,
  59     VK_Sparc_TLS_LE_LOX10
  60   };
  61
  62 private:
  63   const VariantKind Kind;
  64   const MCExpr *Expr;
  65
  66   explicit SparcMCExpr(VariantKind Kind, const MCExpr *Expr)
  67       : Kind(Kind), Expr(Expr) {}
  68
  69 public:
  70   /// @name Construction
  71   /// @{
  72
  73   static const SparcMCExpr *create(VariantKind Kind, const MCExpr *Expr,
  74                                  MCContext &Ctx);
  75   /// @}
  76   /// @name Accessors
  77   /// @{
  78
  79   /// getOpcode - Get the kind of this expression.
  80   VariantKind getKind() const { return Kind; }
  81
  82   /// getSubExpr - Get the child of this expression.
  83   const MCExpr *getSubExpr() const { return Expr; }
  84
  85   /// getFixupKind - Get the fixup kind of this expression.
  86   Sparc::Fixups getFixupKind() const { return getFixupKind(Kind); }
  87
  88   /// @}
  89   void printImpl(raw_ostream &OS, const MCAsmInfo *MAI) const override;
  90   bool evaluateAsRelocatableImpl(MCValue &Res,
  91                                  const MCAsmLayout *Layout,
  92                                  const MCFixup *Fixup) const override;
  93   void visitUsedExpr(MCStreamer &Streamer) const override;
  94   MCFragment *findAssociatedFragment() const override {
  95     return getSubExpr()->findAssociatedFragment();
  96   }
  97
  98   void fixELFSymbolsInTLSFixups(MCAssembler &Asm) const override;
  99
 100   static bool classof(const MCExpr *E) {
 101     return E->getKind() == MCExpr::Target;
 102   }
 103
 104   static bool classof(const SparcMCExpr *) { return true; }
 105
 106   static VariantKind parseVariantKind(StringRef name);
 107   static bool printVariantKind(raw_ostream &OS, VariantKind Kind);
 108   static Sparc::Fixups getFixupKind(VariantKind Kind);
 109 };
 110
 111 } // end namespace llvm.
 112
 113 #endif