1 //====- SparcMCExpr.h - Sparc specific MC expression classes --*- C++ -*-=====//
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 // This file describes Sparc-specific MCExprs, used for modifiers like
11 // "%hi" or "%lo" etc.,
12 //
13 //===----------------------------------------------------------------------===//
14 
15 #ifndef LLVM_LIB_TARGET_SPARC_MCTARGETDESC_SPARCMCEXPR_H
16 #define LLVM_LIB_TARGET_SPARC_MCTARGETDESC_SPARCMCEXPR_H
17 
18 #include "SparcFixupKinds.h"
19 #include "llvm/MC/MCExpr.h"
20 
21 namespace llvm {
22 
23 class StringRef;
24 class SparcMCExpr : public MCTargetExpr {
25 public:
26   enum VariantKind {
27     VK_Sparc_None,
28     VK_Sparc_LO,
29     VK_Sparc_HI,
30     VK_Sparc_H44,
31     VK_Sparc_M44,
32     VK_Sparc_L44,
33     VK_Sparc_HH,
34     VK_Sparc_HM,
35     VK_Sparc_PC22,
36     VK_Sparc_PC10,
37     VK_Sparc_GOT22,
38     VK_Sparc_GOT10,
39     VK_Sparc_GOT13,
40     VK_Sparc_13,
41     VK_Sparc_WPLT30,
42     VK_Sparc_R_DISP32,
43     VK_Sparc_TLS_GD_HI22,
44     VK_Sparc_TLS_GD_LO10,
45     VK_Sparc_TLS_GD_ADD,
46     VK_Sparc_TLS_GD_CALL,
47     VK_Sparc_TLS_LDM_HI22,
48     VK_Sparc_TLS_LDM_LO10,
49     VK_Sparc_TLS_LDM_ADD,
50     VK_Sparc_TLS_LDM_CALL,
51     VK_Sparc_TLS_LDO_HIX22,
52     VK_Sparc_TLS_LDO_LOX10,
53     VK_Sparc_TLS_LDO_ADD,
54     VK_Sparc_TLS_IE_HI22,
55     VK_Sparc_TLS_IE_LO10,
56     VK_Sparc_TLS_IE_LD,
57     VK_Sparc_TLS_IE_LDX,
58     VK_Sparc_TLS_IE_ADD,
59     VK_Sparc_TLS_LE_HIX22,
60     VK_Sparc_TLS_LE_LOX10
61   };
62 
63 private:
64   const VariantKind Kind;
65   const MCExpr *Expr;
66 
SparcMCExpr(VariantKind Kind,const MCExpr * Expr)67   explicit SparcMCExpr(VariantKind Kind, const MCExpr *Expr)
68       : Kind(Kind), Expr(Expr) {}
69 
70 public:
71   /// @name Construction
72   /// @{
73 
74   static const SparcMCExpr *create(VariantKind Kind, const MCExpr *Expr,
75                                  MCContext &Ctx);
76   /// @}
77   /// @name Accessors
78   /// @{
79 
80   /// getOpcode - Get the kind of this expression.
getKind()81   VariantKind getKind() const { return Kind; }
82 
83   /// getSubExpr - Get the child of this expression.
getSubExpr()84   const MCExpr *getSubExpr() const { return Expr; }
85 
86   /// getFixupKind - Get the fixup kind of this expression.
getFixupKind()87   Sparc::Fixups getFixupKind() const { return getFixupKind(Kind); }
88 
89   /// @}
90   void printImpl(raw_ostream &OS, const MCAsmInfo *MAI) const override;
91   bool evaluateAsRelocatableImpl(MCValue &Res,
92                                  const MCAsmLayout *Layout,
93                                  const MCFixup *Fixup) const override;
94   void visitUsedExpr(MCStreamer &Streamer) const override;
findAssociatedFragment()95   MCFragment *findAssociatedFragment() const override {
96     return getSubExpr()->findAssociatedFragment();
97   }
98 
99   void fixELFSymbolsInTLSFixups(MCAssembler &Asm) const override;
100 
classof(const MCExpr * E)101   static bool classof(const MCExpr *E) {
102     return E->getKind() == MCExpr::Target;
103   }
104 
classof(const SparcMCExpr *)105   static bool classof(const SparcMCExpr *) { return true; }
106 
107   static VariantKind parseVariantKind(StringRef name);
108   static bool printVariantKind(raw_ostream &OS, VariantKind Kind);
109   static Sparc::Fixups getFixupKind(VariantKind Kind);
110 };
111 
112 } // end namespace llvm.
113 
114 #endif
115