| //===-- 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 |