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//===-- 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_HA16,
VK_PPC_LO16
};
private:
const VariantKind Kind;
const MCExpr *Expr;
explicit PPCMCExpr(VariantKind _Kind, const MCExpr *_Expr)
: Kind(_Kind), Expr(_Expr) {}
public:
/// @name Construction
/// @{
static const PPCMCExpr *Create(VariantKind Kind, const MCExpr *Expr,
MCContext &Ctx);
static const PPCMCExpr *CreateHa16(const MCExpr *Expr, MCContext &Ctx) {
return Create(VK_PPC_HA16, Expr, Ctx);
}
static const PPCMCExpr *CreateLo16(const MCExpr *Expr, MCContext &Ctx) {
return Create(VK_PPC_LO16, Expr, 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; }
/// @}
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
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