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//===-- MipsMCExpr.h - Mips 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 LLVM_LIB_TARGET_MIPS_MCTARGETDESC_MIPSMCEXPR_H
#define LLVM_LIB_TARGET_MIPS_MCTARGETDESC_MIPSMCEXPR_H
#include "llvm/MC/MCAsmLayout.h"
#include "llvm/MC/MCExpr.h"
#include "llvm/MC/MCValue.h"
namespace llvm {
class MipsMCExpr : public MCTargetExpr {
public:
enum VariantKind {
VK_Mips_None,
VK_Mips_LO,
VK_Mips_HI,
VK_Mips_HIGHER,
VK_Mips_HIGHEST
};
private:
const VariantKind Kind;
const MCExpr *Expr;
explicit MipsMCExpr(VariantKind Kind, const MCExpr *Expr)
: Kind(Kind), Expr(Expr) {}
public:
static bool isSupportedBinaryExpr(MCSymbolRefExpr::VariantKind VK,
const MCBinaryExpr *BE);
static const MipsMCExpr *create(MCSymbolRefExpr::VariantKind VK,
const MCExpr *Expr, MCContext &Ctx);
/// 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 MCAsmInfo *MAI) const override;
bool evaluateAsRelocatableImpl(MCValue &Res,
const MCAsmLayout *Layout,
const MCFixup *Fixup) const override;
void visitUsedExpr(MCStreamer &Streamer) const override;
MCFragment *findAssociatedFragment() const override {
return getSubExpr()->findAssociatedFragment();
}
// There are no TLS MipsMCExprs at the moment.
void fixELFSymbolsInTLSFixups(MCAssembler &Asm) const override {}
static bool classof(const MCExpr *E) {
return E->getKind() == MCExpr::Target;
}
};
} // end namespace llvm
#endif
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