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Diffstat (limited to 'contrib/llvm/lib/Target/PowerPC/MCTargetDesc/PPCMCExpr.h')
-rw-r--r-- | contrib/llvm/lib/Target/PowerPC/MCTargetDesc/PPCMCExpr.h | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/contrib/llvm/lib/Target/PowerPC/MCTargetDesc/PPCMCExpr.h b/contrib/llvm/lib/Target/PowerPC/MCTargetDesc/PPCMCExpr.h new file mode 100644 index 000000000000..e44c7c1adc67 --- /dev/null +++ b/contrib/llvm/lib/Target/PowerPC/MCTargetDesc/PPCMCExpr.h @@ -0,0 +1,96 @@ +//===-- PPCMCExpr.h - PPC specific MC expression classes --------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#ifndef PPCMCEXPR_H +#define PPCMCEXPR_H + +#include "llvm/MC/MCExpr.h" +#include "llvm/MC/MCValue.h" +#include "llvm/MC/MCAsmLayout.h" + +namespace llvm { + +class PPCMCExpr : public MCTargetExpr { +public: + enum VariantKind { + VK_PPC_None, + VK_PPC_LO, + VK_PPC_HI, + VK_PPC_HA, + VK_PPC_HIGHER, + VK_PPC_HIGHERA, + VK_PPC_HIGHEST, + VK_PPC_HIGHESTA + }; + +private: + const VariantKind Kind; + const MCExpr *Expr; + bool IsDarwin; + + explicit PPCMCExpr(VariantKind _Kind, const MCExpr *_Expr, + bool _IsDarwin) + : Kind(_Kind), Expr(_Expr), IsDarwin(_IsDarwin) {} + +public: + /// @name Construction + /// @{ + + static const PPCMCExpr *Create(VariantKind Kind, const MCExpr *Expr, + bool isDarwin, MCContext &Ctx); + + static const PPCMCExpr *CreateLo(const MCExpr *Expr, + bool isDarwin, MCContext &Ctx) { + return Create(VK_PPC_LO, Expr, isDarwin, Ctx); + } + + static const PPCMCExpr *CreateHi(const MCExpr *Expr, + bool isDarwin, MCContext &Ctx) { + return Create(VK_PPC_HI, Expr, isDarwin, Ctx); + } + + static const PPCMCExpr *CreateHa(const MCExpr *Expr, + bool isDarwin, MCContext &Ctx) { + return Create(VK_PPC_HA, Expr, isDarwin, Ctx); + } + + /// @} + /// @name Accessors + /// @{ + + /// getOpcode - Get the kind of this expression. + VariantKind getKind() const { return Kind; } + + /// getSubExpr - Get the child of this expression. + const MCExpr *getSubExpr() const { return Expr; } + + /// isDarwinSyntax - True if expression is to be printed using Darwin syntax. + bool isDarwinSyntax() const { return IsDarwin; } + + + /// @} + + void PrintImpl(raw_ostream &OS) const; + bool EvaluateAsRelocatableImpl(MCValue &Res, + const MCAsmLayout *Layout) const; + void AddValueSymbols(MCAssembler *) const; + const MCSection *FindAssociatedSection() const { + return getSubExpr()->FindAssociatedSection(); + } + + // There are no TLS PPCMCExprs at the moment. + void fixELFSymbolsInTLSFixups(MCAssembler &Asm) const {} + + static bool classof(const MCExpr *E) { + return E->getKind() == MCExpr::Target; + } +}; +} // end namespace llvm + +#endif |