llvm/lib/Target/VE/MCTargetDesc/VEMCExpr.h

   1 //====- VEMCExpr.h - VE 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 VE-specific MCExprs, used for modifiers like
  10 // "%hi" or "%lo" etc.,
  11 //
  12 //===----------------------------------------------------------------------===//
  13
  14 #ifndef LLVM_LIB_TARGET_VE_MCTARGETDESC_VEMCEXPR_H
  15 #define LLVM_LIB_TARGET_VE_MCTARGETDESC_VEMCEXPR_H
  16
  17 #include "VEFixupKinds.h"
  18 #include "llvm/MC/MCExpr.h"
  19
  20 namespace llvm {
  21
  22 class StringRef;
  23 class VEMCExpr : public MCTargetExpr {
  24 public:
  25   enum VariantKind {
  26     VK_VE_None,
  27     VK_VE_REFLONG,
  28     VK_VE_HI32,
  29     VK_VE_LO32,
  30     VK_VE_PC_HI32,
  31     VK_VE_PC_LO32,
  32     VK_VE_GOT_HI32,
  33     VK_VE_GOT_LO32,
  34     VK_VE_GOTOFF_HI32,
  35     VK_VE_GOTOFF_LO32,
  36     VK_VE_PLT_HI32,
  37     VK_VE_PLT_LO32,
  38     VK_VE_TLS_GD_HI32,
  39     VK_VE_TLS_GD_LO32,
  40     VK_VE_TPOFF_HI32,
  41     VK_VE_TPOFF_LO32,
  42   };
  43
  44 private:
  45   const VariantKind Kind;
  46   const MCExpr *Expr;
  47
  48   explicit VEMCExpr(VariantKind Kind, const MCExpr *Expr)
  49       : Kind(Kind), Expr(Expr) {}
  50
  51 public:
  52   /// @name Construction
  53   /// @{
  54
  55   static const VEMCExpr *create(VariantKind Kind, const MCExpr *Expr,
  56                                 MCContext &Ctx);
  57   /// @}
  58   /// @name Accessors
  59   /// @{
  60
  61   /// getOpcode - Get the kind of this expression.
  62   VariantKind getKind() const { return Kind; }
  63
  64   /// getSubExpr - Get the child of this expression.
  65   const MCExpr *getSubExpr() const { return Expr; }
  66
  67   /// getFixupKind - Get the fixup kind of this expression.
  68   VE::Fixups getFixupKind() const { return getFixupKind(Kind); }
  69
  70   /// @}
  71   void printImpl(raw_ostream &OS, const MCAsmInfo *MAI) const override;
  72   bool evaluateAsRelocatableImpl(MCValue &Res, const MCAssembler *Asm,
  73                                  const MCFixup *Fixup) const override;
  74   void visitUsedExpr(MCStreamer &Streamer) const override;
  75   MCFragment *findAssociatedFragment() const override {
  76     return getSubExpr()->findAssociatedFragment();
  77   }
  78
  79   void fixELFSymbolsInTLSFixups(MCAssembler &Asm) const override;
  80
  81   static bool classof(const MCExpr *E) {
  82     return E->getKind() == MCExpr::Target;
  83   }
  84
  85   static VariantKind parseVariantKind(StringRef name);
  86   static bool printVariantKind(raw_ostream &OS, VariantKind Kind);
  87   static void printVariantKindSuffix(raw_ostream &OS, VariantKind Kind);
  88   static VE::Fixups getFixupKind(VariantKind Kind);
  89 };
  90
  91 } // namespace llvm
  92
  93 #endif